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Home My WebLink About20220479.tiffg Q COLORADO Division of Reclamation. Mining and Safety Department of Natural Resources 1313 Sherman St. Room 215 Denver, CO 80203 RECEIVED DEC 17 2021 WELD COUNTY COMMISSIONERS NOTICE Consideration of 112c Construction Materials Reclamation Permit Application DATE: December 13, 2021 TO: Weld County Commissioners 915 10th St Greeley, CO 80631 RE: Stiles Mining Resource, File No. M-2021-067 Please be advised that on December 13, 2021, Asphalt Specialties Co., Inc., whose address and telephone number are 10100 Dallas St, Henderson, CO 80640; (303) 289-8555, filed an application to conduct a(n) Surface mining and reclamation operation, at or near Section 35, Township 5N, Range 66W, 06th Principle Meridian, in Weld County. Please be advised that the permit area may be located in more than one Section, Township, and Range. Affected lands will be reclaimed to support a(n) General agriculture,industrial/commercial post -mining land use. The application decision date is scheduled for March 13, 2022. A copy of the application is available for review at the Weld County Clerk & Recorder's office and at the office of the Division of Reclamation, Mining and Safety. The application, as well as all other permit documents, can also be viewed at https://dnrweblink.state.co.us/drms/search.aspx by searching M2021067 in the "Permit No" field. A user guide is available to help first time users of the imaged document system and can be viewed at https://drive. google.com/file/d/118OUdf Mpio3kxlHkP5hMH-w7MeStxX7/view. To be considered in the review process, comments or objections on the application must be submitted in writing within twenty (20) days of the date of the last newspaper public notice. You should contact the applicant for the newspaper publication date. The Office will assume you have no comment or objection to the proposed activity if none are received by the end of the public comment period. If you need additional information or have any questions regarding the above -named application, please contact Eric C. Scott at the Division of Reclamation, Mining and Safety, 1313 Sherman Street, Room 215, Denver, CO 80203, by telephone at 303-866-3567 x 8140, or by email at Eric.scott@state.co.us. M -AP -05A OF' COLA`.. 1313 Sherman St. Room 215 Denver, CO 80203 P (303) 866-3567 F (303) 832-8106 https://drms.colorado.gov/ Jared Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director Publ : G Rev :.j cc: PaCTP)'PATI&IeR/CN/c 02 /o7/ 2022-0479 NOTICE OF FILING APPLICATION FOR COLORADO MINED LAND RECLAMATION PERMIT FOR A REGULAR (112) CONSTRUCTION MATERIALS EXTRACTION OPERATION NOTICE TO THE BOARD OF SUPERVISORS OF THE LOCAL CONSERVATION DISTRICT WELD DISTRICT Asphalt Specialties Co., Inc. (the "Applicant/Operator") has applied for a Regular (112) reclamation permit from the Colorado Mined Land Reclamation Board (the "Board") to conduct the extraction of construction materials operations in Weld County. The attached information is being provided to notify you of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division") and the local county clerk and recorder. The applicant/operator proposes to reclaim the affected land to General Agriculture and Industrial / Commercial use. Pursuant to Section 34-32.5-116(4)(m), C.R.S., the Board may confer with the local Conservation Districts before approving of the post -mining land use. Accordingly, the Board would appreciate your comments on the proposed operation. Please note that,in order to preserve your right to a hearing before the Board on this application, you must submit written comments on theapplication within twenty (20) days of the date of last publication of notice pursuant to Section 34-32.5-112(10), C.R.S. If you would like to discuss the proposed post -mining land use, or any other issue regarding this application, please contact the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567. I, (Printed Name) received the above notification and the associated application on behalf of the Weld District, Board of Supervisors for the Local Conservation District on , 2021. RECEIVED DEC 012021 2021 WELD COUNTY Signature COMMISSIONERS H:\Pits HBP Plants\EVANS\Stiles Mining Resource\1 12 App\Notices Signs Structure Agreement Template.docx Operation STILES MINING RESOURCE Section 35 & 36, Township 5 North, Range 66 West Weld County, Colorado State of Colorado Department of Natural Resources Division of Reclamation, Mining and Safety Construction Materials Regular (112) Operation Reclamation Permit Application Forms and Exhibits ASPHALT SPECIALTIES CO. 10100 Dallas Street Henderson, Colorado 80640 STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION FORM CHECK ONE: ❑_ There is a File Number Already Assigned to this Operation COLORADO DIVISION OF RECLAMATION MINING —&— SAFETY Permit # M - - (Please reference the file number currently assigned to this operation) 121 New Application (Rule 1.4.5) Amendment Application (Rule 1.10) Conversion Application (Rule 1.11) Permit # M - - - (provide for Amendments and Conversions of existing permits) The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit 6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of the completed application form, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to 8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form. GENERAL OPERATION INFORMATION Type or print clearly, in the space provided, ALL information requested below. 1. Applicant/operator or company name (name to be used on Permit): Asphalt Specialties CO., Inc. 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): Stiles Minina Resource 3. Permitted acreane (new or existine site): 158.3 permitted acres 3.1 Change in acreage (+) acres 3.2 Total acreage in Permit area 158.3 acres 4. Fees: 4.1 New Application $2,696.00 application fee 4.2 New Quarry Application $3,342.00 quarry application 4.4 Amendment Fee $2,229.00 amendment fee 4.5 Conversion to 112 operation (set by statute) $2,696.00 conversion fee 5. Primary commoditie(s) to be mined: Sand Gravel 5.1 Incidental commoditie(s) to be mined: 1. NA - lbs/Tons/vr 2. / lbs/Tons/vr 3. / lbs/Tons/yr 4. / lbs/Tons/vr 5. / lbs/Tons/vr 5.2 Anticipated end use of primary commoditie(s) to be mined: Aggregate road base, asphalt and concrete. 5.3 Anticipated end use of incidental commoditie(s) to be mined: -2- 6. Name of owner of subsurface rights of affected laud: Hunt Brothers Properties, Inc. If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: Hunt Brothers Properties, Inc. 8. Type of mining operation: ZI Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Weld PRINCIPAL MERIDIAN (check one): 6th (Colorado) 1 10th (New Mexico) Ute SECTION (write number): S 35 & 36 TOWNSHIP (write number and check direction): T 5 North North South RANGE (write number and check direction): R66W W East JZJ West QUARTER SECTION (check one): !. ✓ QSW QUARTER/QUARTER SECTION (check one): EI NE bNW SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): The construction materials operation is t one mile west of La Salle, Colorado at an elevation of ±4,664 ft. 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Lon ire: Example: (N) 390 44 12.98" (W) 104° 59' 3.87" Latitude (N): deg 40 min 20 sec 57.03 (2 decimal places) Longitude (W): deg 104 min 43 sec 5752 (2 decimal places) OR Example: (N) 39.73691° (VT) -104.98449° Latitude (1) 40 •349313 (5 decimal places) Longitude(W) -104 732419 (5 decimal places) OR Universal Tranverse Mercator (UTMI Example: 201336.3 E NAD27 Zone 13 4398351.2 N UTM Datum (specify NAD27, NAD83 or WGS 84) Nad 83 Easting Northing Zone 13 -3- 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Contact's Name: Daru®1 W. Hurt Title: President Company Name: Asphalt Specialties Co., Inc. Street/P.O. Box: 10100 Dallas St. P.O. Box: 709 City: Henderson State: Colorado Zip Code: 80640 Telephone Number. (303 ) - 289-8555 Fax Number: (303 ) _ 289-7770 PERMnTING CONTACT (if different from applicant/operator above) Contact's Name: David King Title: Material Operations Manager Company Name: Asphalt Specialties Co., Inc. Street/P.O. Box: 10100 Dallas St. P.O. Box: 709 City: Henderson State: Colorado Zip Code: 80640 Telephone Number: (303 - 289-8555 Fax Number: (303 ) - 289-7770 INSPECTION CONTACT Contact's Name: David King Title: Material Operations Manager Company Name: Asphalt Specialties Co., Inc. Street/P.O. Box: 10100 Dallas Street P.O. Box: 709 City: Henderson State: Colorado Zip Code: 80640 Telephone Number: (303 - 289-8555 Fax Number: (303 ) - 289-7707 CC: STATE OR FEDERAL LANDOWNER (if any) Agency: NA Street: City: State: Zip Code: Telephone Number: ( 1 - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: NA Street: City: State: Zip Code: Telephone Number: ( 1- -4- 12. Prima fu re ost land use (check one): jJ Cropland(CR) Pastureland(PL) -0 Rangeland(RL) Forestry(FR) -0 Residential(RS) Recreation(RC) -0 Developed Water Resources(WR) 13. Primary present land use (check p e: Cropland(CR) Pastureland(PL) Rangeland(RL) Forestry(FR) Residential(RS) Recreation(RC) Developed Water Resources(WR) / General Agriculture(GA) Wildlife Habitat(WL) Industrial/Commercial(IC) Solid Waste Disposal(WD) / General Agriculture(GA) Wildlife Habitat(WL) Industrial/Commercial(IC) 14. Method of Mining: Briefly explain mining method (e.g. truck/shovel): The method of mining will use excavators, loaders and articulated haul trucks to mine the aggregate resource. 15. On Site Processine: Crushing/Screening 13.1 Briefly explain mining method (e.g. truck/shovel): A loader will feed aggregate materials into a horizontal impact crusher and aggregate screening plant. List any designated chemicals or acid -producing materials to be used or stored within permit area: No designated chemicals or acid producing materials will be used or stored within the permit area. 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). NA -5 - Mans and Exhibits: Two (2) complete, unbound application packages must be submitted. One complete application package consists of a signed application form and the set of maps and exhibits referenced below as Exhibits A -S, Addendum 1, and the Geotechnical Stability Exhibit. Each exhibit within the application must be presented as a separate section. Begin each exhibit on a new page. Pages should be numbered consecutively for ease of reference. If separate documents are used as appendices, please reference these by name in the exhibit. With each of the two (2) signed application forms, you must submit a corresponding set of the maps and exhibits as described in the following references to Rule 6.4, 6.5, and 1.6.2(l)(b): EXHIBIT A EXHIBIT B EXHIBIT C EXHIBIT D EXHIBIT E EXHIBIT F EXHIBIT G EXHIBIT H EXHIBIT I EXHIBIT J EXHIBIT K EXHIBIT L EXHIBIT M EXHIBIT N EXHIBIT O EXHIBIT P EXHIBIT Q EXHIBIT R EXHIBIT S Rule 1.6.2(l)(b) Rule 6.5 Legal Description Index Map Pre -Mining and Mining Plan Map(s) of Affected Lands Mining Plan Reclamation Plan Reclamation Plan Map Water Information Wildlife Information Soils Information Vegetation Information Climate Information Reclamation Costs Other Permits and Licenses Source of Legal Right -To -Enter Owners of Record of Affected Land (Surface Area) and Owners of Substance to be Mined Municipalities Within Two Miles Proof of Mailing of Notices to County Commissioners and Conservation District Proof of Filing with County Clerk or Recorder Permanent Man -Made Structures ADDENDUM 1 -Notice Requirements (sample enclosed) Geotechnical Stability Exhibit (any required sections) The instructions for preparing Exhibits A -S, Addendum 1, and Geotechnical Stability Exhibit are specified under Rule 6.4 and 6.5 and Rule 1.6.2(l)(b) of the Rules and Regulations. If you have any questions on preparing the Exhibits or content of the information required, or would like to schedule a pre -application meeting you may contact the Office at 303-866-3567. Responsibilities as a Permittee: Upon application approval and permit issuance, this application becomes a legally binding document. Therefore, there are a number of important requirements which you, as a permittee, should fully understand., These requirements are listed below. Please read and initial each requirement, in the space provided, to acknowledge that you understand your obligations. If you do not understand these obligations then please contact this Office for a full explanation. 1. Your obligation to reclaim the site is not limited to the amount of the financial warranty. You assume legal liability for all reasonable expenses which the Board or the Office may incur to reclaim the affected lands associated with your mining operation in the event your permit is revoked and financial warranty is forfeited; -6- 2. The Board may suspend or revoke this permit, or assess a civil penalty, upon a finding that the permittee violated the terms or conditions of this permit, the Act, the Mineral Rules and Regulations, or that information contained in the application or your permit misrepresent important material facts; 3. If your mining and reclamation operations affect areas beyond the boundaries of an approved permit boundary, substantial civil penalties, to you as perniittee can result; 4. Any modification to the approved mining and reclamation plan from those described in your approved application requires you to submit a permit modification and obtain approval from the Board or Office; 5. It is your responsibility to notify the Office of any changes in your address or phone number; 6. Upon permit issuance and prior to beginning on -site mining activity, you must post a sign at the entrance of the mine site, which shall be clearly visible from the access road, with the following information (Rule 3.1.12): a. the name of the operator; b. a statement that a reclamation permit for the operation has been issued by the Colorado Mined Land Reclamation Board; and, c. the permit number. 7. The boundaries of the permit boundaryarea must be marked by monuments or other markers that are clearly visible and adequate to delineate such boundaries prior to site disturbance. 8. It is a provision of this permit that the operations will be conducted in accordance with the terms and conditions listed in your application, as well as with the provisions of the Act and the Construction Material Rules and Regulations in effect at the time the permit is issued. 9. Annually, on the anniversary date of permit issuance, you must submit an annual fee as specified by Statute, and an annual report which includes a map describing the acreage affected and the acreage reclaimed to date (if there are changes from the previous year), any monitoring required by the Reclamation Plan to be submitted annually on the anniversary date of the permit approval. Annual fees are for the previous year a permit is held. For example, a permit with the anniversary date of July 1, 1995, the annual fee is for the period of July 1, 1994 through June 30, 1995. Failure to submit your annual fee and report by the permit anniversary date may result in a civil penalty, revocation of your permit, and forfeiture of your financial warranty. It is your responsibility, as the permittee, to continue to pay your annual fee to the Office until the Board releases you from your total reclamation responsibility. ✓y 10, For joint venture/partnership operators: the signing representative is authorized to sign this document and a power of attorney (provided by the partner(s)) authorizing the signature of the representative is attached to this application. _7_ NOTE TO COMMENTORS/OBJECTORS: It is likely there will be additions, changes, and deletions to this document prior to final decision by the Office. Therefore, if you have any comments or concerns you must contact the applicant or the Office prior to the decision date so that you will know what changes may have been made to the application document. The Office is not allowed to consider comments, unless they are written, and received prior to the end of the public comment period. You should contact the applicant for the final date of the public comment period. If you have questions about the Mined Land Reclamation Board and Office's review and decision or appeals process, you may contact the Office at (303) 866-3567. -8 - Certification: As an authorized representative of the applicant, I hereby certify that the operation described has met the minimum requirements of the following terms and conditions: 1. To the best of my knowledge, all significant, valuable and permanent man-made structure(s) in existence at the time this application is filed, and located within 200 feet of the proposed affected area have been identified in this application (Section 34-32.5-115(4)(e), C.R.S.). 2. No mining operation will be located on lands where such operations are prohibited by law (Section 34-32.5-115(4)(f), C.R.S.; 3. As the applicant/operator, I do not have any extraction/exploration operations in the State of Colorado currently in violation of the provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials (Section 34-32.5-120, C.R.S.) as determined through a Board finding. 4. I understand that statements in the application are being made under penalty of perjury and that false statements made herein are punishable as a Class I misdemeanor pursuant to Section 18-8-503, C.R.S. This form has been approved by the Mined Land Reclamation Board pursuant to section 34-32.5-112,CRS, oldie Colorado Land Reclamation Actfor the Extraction of Construction Materials. Any alteration or modification of this form shall result in voiding any permit issued on the altered or modified form and subject the operator to cease and desist orders and civil penalties for operating without a permit pursuant to section 34-32.5-123, CRS Signed and dated this �.� day of /14 siev' b er2_ , 2021 Asphalt Specialties Co., Inc. Applicant/Operator or Company Name Signed: Daniel W. Hunt Title: President State of Colorado If Corporation Attest (Seal) Signed: Corporate Secretary or Equivalent Town/City/County Clerk )ss. County of Adams The foregoing instrument was acknowledged before me this = day of _'J D V e m % e ►2 2021, by Daniel W. Hunt as President of Asphalt Specialties Co., Inc. JAN NELSON NO"7 tu. v tai : LIC STAT9AD0 NOTAHR 527 My Commission LAN. -129, 2024 JAN NELSON NOTARY PUBLIC STATE OF COLORADO NOTARY ID 19994030527 My Commission Expires April 29.2024 No Public My Commission expires: ,4Jl? 0 Exhibit A - Legal Description This exhibit provides the legal description, general mine property description, mine access coordinates and directions for the Stiles Mining Resource site. Legal Description: PARCEL I: LOT B, RECORDED EXEMPTION NO. 0959-36-03 RECX17-0197, RECORDED JANUARY 17, 2018, AT RECEPTION NO. 4368408, LOCATED IN THE W 1/2 OF THE SW 1/4 OF SECTION 36, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO PARCEL II: LOT B, AMENDED RECORDED EXEMPTION NO. 0959-36-03 1AMRECX18-85-803, RECORDED SEPTEMBER 18, 2019, AT RECEPTION NO. 4524591, LOCATED IN THE SW 1/4 OF SECTION 36, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO EXCEPT THAT PARCEL DEEDED JUNE 18, 2018, AT RECEPTION NO. 4407999 PARCEL III: THE E 1/2 OF THE E 1/2 OF THE SE 1/4 OF SECTION 35, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., WELD COUNTY, COLORADO, EXCEPT THAT PART OF THE E 1/2 OF THE E 1/2 OF THE SE 1/4 LYING SOUTH OF A LINE BEGINNING AT THE SE CORNER OF SAID SECTION 35; THENCE NORTH 00 DEGREES 00 SECONDS WEST 172.15 FEET; THENCE NORTH 86 DEGREES 00 SECONDS WEST TO THE WEST LINE OF THE E 1/2 OF THE E 1/2 OF SAID SECTION 35. COUNTY OF WELD, STATE OF COLORADO. EXCEPTING FROM ABOVE PARCELS THE RIGHT OF WAY FOR 35 .. AVENUE CONTAINED IN INSTRUMENTS RECORDED DECEMBER 29, 2003, AT RECEPTION NO. 3139615, 3139614 AND JUNE 20, 2006, AT RECEPTION NO. 3397576 Consisting of approximately 152.31 acres of vacant land, together with any improvements, structures and fixtures located thereon, all rights, benefits, privileges, easements, tenements, hereditaments, reversions, remainders, rights -of -way and other appurtenances thereon or in any way appertaining thereto, including without limitation Seller's right, title, and interest, if any, in all oil, gas, mineral, sand, gravel, development, and air rights ("Mineral Rights"and Seller's right, title, and interest, if any, in all water, water rights, wells, drains, ditches, ditch rights, reservoirs, reservoir rights, canals, canal rights, and headgates ("Water Rights"), all strips and gores and any land lying in the bed of any street, road or alley, open or proposed, adjoining such real property. CITY OF EVANS 35th Avenue Right of Way - Include in the Affected Area: City of Evans, 35th Avenue to allow a (120') Right of Way between Parcels III and I in the active area, ±6 acres. Stiles Mining Resource Affected Area ±158.3 Acres. General Mine Description - Generally, Stiles Mining Resource property may be described as: The E Y2 of the E Y2 of the Southeast Y of Section 35 and the Southwest Y< of Section 36, Township 5 North, Range 66 West of the 6tn P.M., County of Weld, State of Colorado. Mine Location - The mine is generally located 2.5 miles southwest of the Evans city center and 1.5 miles west of the town center for La Salle in Weld County, Colorado. Stiles Mining Resource Road access coordinates are: Latitude: 400 20' 57.03" North or 40.349313° North Longitude: 104° 43' 57.52" West or -104.732419° West Directions to mine - The mine access is ±2 miles southwest on Weld County Road 394 (CR 394) from the intersection of State Highway 85 and CR 394. The mine access is also located ±450 ft east along CR 394 from the intersection of CR 35 and CR 394. �� t�• !0'i�i` C , •^'a 'y y'_ r •.'' I - '�P -__� ' i-..h-Y{,�]l �'+i --_ ur:i '1 '+_ i :'• E1 /Y �j • C '.�'_.' \R'p Try j i$�'' {nl'4i/il�� +i -- ..jY r • .l`h•/,/ • �% ([�J� • '� Aj \-J '^— w r LEGAL ESCRIPT N )._ •-.s+ r\ -.s . ` .'> 4/SD1�41 ci i.� . , , ��iSyi i. ; ' �� ! ,•AI ti •°+ .' �� ; ' `•••�"� --'w,cR-6V -- -1 `�`':�,�' -� .--� { Part of the E% '/ or the SE% of Section 35, Y of eE ° �f1 R 0 ' " ,* PMF2!*4rr91r K'06PEs• r b ,y` I o• ' except that part of the E% of the E'/ of the SE% and .•. i -�r r' L a5 �'a tak! i x ''' o��. ��Rt� _ „ .J Colorado, State of Colorado. x r °$'� . i T ` F � �` pr s. ay , —.,,r ?y � � r e � 0. 0 3a-..•� 9w ��l�,'/., r M m .`� '��• �� \�.„ ? ( f vy'�-fie al�t4 �f` -+ = ^� ,� - Excepting from the above parcels the right of way for •r_ •M! • S. Y 21y t: .') • ) .l -I\ - _'..1•' Y •.}. b % f w•cR•s2 �l ,+ J aL St!, 1d ;,tt • ;rp 35th Avenue contained in instruments recorded ' f � - • ♦ .. �F — ,vw'�1 ! ,� � '�N �. � !-\,a :�{ Y � '+�/(• ) ♦' .' �, t`JS � � ' .. ) r� a rte i �> I Y•lL r +• i /{i• � m I it l iii_ . � a December 29th, Reception 3139615, • 2003 at No. � X t '� ^• y,fi : ` ' �'! i`' " :3 t ll " j �} 3139614 and June 20, 2006 Reception No. 339576. 1 LLLj2!!WtiIl3-rr{/,RO;[, \',f;\•'• ® •A L.�.'^iY'+.'_,.r• •" 7i]"Ari_ • ,r� �C ' �p'''•1r'i )a :•.1/fe i . t ^�..r Ikt �)i itzi •{l -, 0 E' .1. .. - 1, r ,4 .,%4 �1 ll�.(•' �it 1 t/ ""., r' �.' .. aR`^.`. ` -• -� •' "t . -/,3 i f '.,'t'tl'i`{-I� R \l Y �� +.. {�•+! r �E `_ r r�4 `- ! i•J - T:! Tai. 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'r .a . dpa� �.v , L -t •.ET • t � ./f „•.l J. .tr' , ..r r'^ ■Y� Z, rt 1!'�, 1r1 1' , L k�Y ,s Township 5 North Range 66 West ��, � A: i o soda - — ��.• ref` IG�39&8 P ` C v r © 3t. • of the 6th PM Weld County Colorado # \ ' " _ ' Mine Access + 11111 _P/VYCR-ao811.2 w . �9° �Loude104437.5" W �, ct� _I, �_K J .. iva� x. l . . CR�4 ett d' ° US ; '.. [ r, to eau° �k� + ai 1 iY Highway 85 ui 1rJiW�t _2. t [ + 4 �. 'l_ -it �� ly, Ri+ls - F •VVCcR 6r.— t. GW4-6 Y41 d5=• WCR 6 r.' z O_ , �1 r �.�.n.'Jw^l.r'''.,..'�: h ♦ ti. �✓. e..%� n -- ..•f M ' _�. /� C ( , a O •'�y`y. .. - o�... 2 ... r r - t� M Map Insets w tv r . .. � ., } t �• 0C- `• ;. V .. .�o• s �•-� � �-. \ US Interstate 25 Town of Milliken USHWY85toGREELEY STILES MINING RESOUCE • ..y.., .�<.: .a` a • , ,r :. a L.. �.. YAf a 'M itl4a•:_ _ �y b �,+ • ym. a .� ,,. .4 - �, LW : !a \ _ L. W JV A i• '.• `.{.'i4S�. : �!^.• • �• .. T• • d'b 0$ - S , T-`-:�_, Q/R.4f•n{i '.-...\�D �r* r[.[I •n ,.. -%. �. /, /%QL'•' , S.. 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" ' I� '_ [ .. 4 •q.. �. _ � f �_ _„_ r .M Q•7t� _ ._.. @@ .w. �' .. .. •�it � 04+� _� f UVCR @6 YUCRIk �\ 1 NN41 • AQ94f P• - .. �a _ r - -_ - _ ..:�v 4 Yi ` 66W \ mro io3 von °•VNCR $8 =--WCR•48 z-- US HWY 85 TO DENVER, COLORADO P PROPERTY OWNER eld CELMa Address S J F A f`: M- S r $ r' .mss 5�V7..iV13 r [the RA 5c a r h nk 4020 54th Street 95935105014 E City of Evans 95936000017 11.00 37th Street L. sXU� 4S$4 Juan 59 1 17509 CR 394 Heidi and Romero 9 3630004 Je Loeffler 9593 23896 CR 35 rry 'r < F r� l' ' Martin Hernandez 95936300437 17043 CR 394 K William Eric Folley 95935000006 16957 CR 394 SMR �ry� 'w� � �7P r r:✓T"� ' r�x�` 'tr 'x` a ,r - 's:€" '` �xE tr'" J r :, E111AP STRUCTURE OWNER Weld County MaIIII Address city IstateLLpI-l�' Greeley CO .80634 0 Evans CO 80620 0 ".r La Salle CO 80645 5 n y La Salle CO 80545 D yea^'- La Salle CO 80645 4 La Salle CO 80645 2 tty IStatel Zl. I Ems. N City of Evans NA 1100 37th Street Evans CO 80620 3. y+�� F .1r :'?�'.,_ I{ - d�- �5-�=.,.�.f�l: }.�-a, �*.i- �� r}• y �',rM. � - stir ,_ _ Xcel Energy NA 1123 W- 3rd Ave_ Denver CO 80223 0 4**`�-Y .� C . a ,> l , ; - 2505 lstAve- Building r Century Link- In Care of Lucas Montano NA COQ997 Floor I Room Greeley CO 30631 0 CO3 23 yam- w•.r 370 Street, Suite 2 Denver CO 802 DCP Midstream LLC NA17th Str 500 C?2 0 r ,''par." 8O2O2 Atmos Energy NA 1200 11th Ave. Greet CO 80631 0 (*) - OP, R, $ and V are located in or adjacent to the WCR 394 right of way. NOTICE OF OIL AND CAS INTERESTS AND Weld CAlwlty Zip �Jgdtfress•11y C Stale SURFACE USE Reaeptran g ode .� ��r ra JS' F r. t y ��t.ra�RR"�-.� � � ✓ t , � �,'`' nejya ,c'. 1 � �enr 2e Z,J£!, _ F 5 rl .` 1 •. T� .. '> t � k..- w h •? -.t "Cow 1 1776 Sheri St, Suite PDC Energy 2911901 Denver CO 80204 E Y i z M et .. : .. Kerr McGee Oil & Gas Onshore LP, Attu: 3525 109918th Street, #150 0 Denver CO 80202 Land. Manager J Wattenb PROPERTY DESCRIPTION shared fence Shared fence, residence and utility buildings Adjacent to County Rd ROW, South of WCR 394 ared fence residence milking parlor and utility bul Shared fence, residence, barn, shed and utility bull' STRUCTURE DESCRIPTION 35th Ave Right of Way and barn yyintft �. .J. Power Poles and Electric cable Buried Communication Assets �li4yet Cut X94 RC Gas Lines & Meter Station Gas Line LEGEND Property Owner 0 (Structure Owner I W01M" ' NG :PROPEFTY TCI. STALES MININ.G 1 8±( 1 E tS;NiR :a STILES MINING RESOURCE Affected Area MINE MINE AREA Survey Parcel MINE BLOCK I` (Acre 4 PHASE (Acres) r 6:B - et Plant :: 38,. C, 4Q�.:." II East � 5 .2 4 4A 48Br 4C, 41) r 40.0 379 1 Py k to lA1 It -As I. 0 •rrr i y' , .. .+ WELL PERMITS WITHIN 600 FT OF THE MINE PERMIT BOUNDARY .. " :vr.; ..w. � h.. �'- ...... ., .,... - 'fir :..._ . _ .: � .ate. .F uS 2 ..A: {:.:a �< - r... -Y ... ,:.� ,:?r irv. . J',- iN R [, C /. '� - � 1- s 'x. �. --;'_ Tx k: ... .. - - "„ !.!firngitude . .. Monitoring40.3508 - �Tal S" h� Resources Partners 148$ 121st AveSte 100Cri?S5F Cross -gradient wi 55 4 12 fe S g -184.7375 (Urmamed Aquifer) LLC - Applegate Group Denver, Colorado 80234 Up -gradient �tsrrnlg ! 40.3542 dial S Natural Resources Partners 1488 W_ 121st Ave, Ste 100 Cross -gradient t 1 Vim. ' 55499-� 12 f eet S -104.7383 Aquifer) LLC -Applegate Group D Colorado � 80234 Up -gradient 17509 5{ CR 394 LaSaltp' '-"s Cross -gradient f r Uaditht ""r-sCr, - S r'.' ' . c+I. } f-irt'x !r T.' .- .rt . t •^r, - t , -+S .&.J4L { _ J. 4 :L.T LL I1L• .r'F I U - _ -s :. .� •- i a r } t F — - # ...; : -I P - .Zi1 — . • I.c IJ - . * Jmd W4f , - # wvic* ,• r 1 . ___ - .:. - . - L ;. Ar • + I# 1 0 SOURC4 i.0 1 r*k - -`'" dr• - f • 1 �o&M Er O U SII .- ~j*.)J*. '-r"' tar -i � r#. i1+• :.F ak,1C C _.:pi-rs.'i�f E 4'- 0 0 0 tQ o rn I V WLfl L .... O - �} O a U) EnU00 C � ri C ` 41 coa)3 n. .:--I E 4 O a. U O E U C O o Q E (D N d II .rNtio011 �� c0 1-I O N W N � E7 M ❑ W O Cr' EY OA I C W n Oa .U) L C O L L M aoo c o v U Z 'Cl: W�L..-;� ©a- Cu)w of 3 Stiles Mining Resource Mine phase and black Schedule ApP±oxlrnate Year of Mining Operation 1#n5 • eo[t M[A[re[la srtrpr M,r Buhf,l ne 588x1±85 ±0384 ..: �,7 PM1 1 n Hot zGlantl xz _ zox� 33x, � 1C ] mn 1913 ne 8,858 LfMa eY l 1 alwet 0338 4M1are 1lwe.isurvey .. ,�) z t. 3y 1.1� o,n an,e.�[Mleelewney 1 3 - b ] I. eitYm maartsu�a,.en�e 815x8 330±8 Alt �o - ' me 32l: 4 �xax wit n �nba e,Rnr- n o e e•n Rmbe ,.`•nea PRIOR TO ee� mara,a=ten MINING --- Sra3 wbp,are. rkerv,a .hr4.,n ee nsi ^il9 a� mal amppe Wa m e ao�n re tles m� mnlri munbna nele.d INITIAL MINE •"y _ - r •^'• DEVELOPMENT ' ' 1 ;'� •«amaoo, r, e ma i mIM1¢o ��[Nc�s:haxnmo sawn nlanc Rl� � ,3863 a a nb�i • M1 �. MINING OF y ��—�>w>•s��ffrimir ice.... Vkraw+nutt mnk�z�lo Ue k�Me•e-0aatl mictl FINAL MINE ~�\ o t��reraoer raw11101±51±000,3,0! 6LOCK EXCAVA�TCION �` 3I 013±300300.351h 030830.3 Ri,16l o(weyis e0.rrenliy LOU r! wide 8330.3.111 e��antl to 120 n in±2th. 1Ne haO3 alo.±ed ±5 enea 3, nffrled lard. Ta:oal Property Area Including the CI tY of [331 008±333 ROW Is 0153.230±50 3[ when me city of Lvans top ltles±ominethot thnven..e POW toe,llerted :.mob Ve ore± will remain the etlual to 0tzs acres- when th,s add,ticna area r, ned:]ll-witsbe no-ifi-d ntt`e exn=.n;ierta"n. bl"" r _ o rt ±1,1 0Offected Ore al - a.=mP�amo new_., .±5 ., =a. rims nn�ndary 8338 will be user l3rmr , gnurposes dv, notion mind rIn 1 FLa" uu Wttl ,I ,I lr,,nra,ercial lsnd loeatetl in flnnd Plaln -±530,0, Irtlus[llal/[u n,,...nisi 13±2 located in ll,,d vlay=**-1dl Ores ML IIULatn 311±33110±5 '13.5Acres vs Wti1[S�"tom V�1111t1CR —. _ —. r n At v32103 In � c y QE � W t5 W 4- C U s 0 a M CENTER —EAST -EAST R 1/64 6 W CDR.. FOUND CENTER -WEST 1/16 CUR. SEC. 36, SEC. 35,' T 5 N, � R, WEST 1/4 COSEC, 3.f, T 5 N,,. R 66 W, FOUND 3/4 REM 3/4" REBAR WITH 2 1/2 ALUMINUM iT 5 N, R 66 W, FOUND _j WITH 2 1/21 ALUMINUM :CAP, PERMIT & CAP, PLS X644 REBAR 4NITH 2 'I,/2'° ALUMINUM PL5. 38230 PROPERTY CAP, PLS 2:46743 BOUNDARY N89'2'3'�V 75P,a' GATE NBS`.28'41Q'E 1318.81?' 71$: 3` 1217-96`(M). 1218,.11'{R). Ff UND MONUMENT r35 FpUNfl MI tNUN ENT f LIES 0.5 ' SOUTH LIES 0.73'''.50UTH ] PERMIT & OF PROPER TY COR OF PRC PE€ T'Y C 3R, II PROPERTY BOUNDARY r —WATER LINE EASEMENT 437 3;305) EXCEPTION NO. 5 GATE I Peppier 3-36. PDC Energy 1 II NW SW Sec 36 T5N R66W. — sca CENTEITLINE OF South �/a�� R�i'er SOUTH BAND OF THE SOUTH PLATTE RIVER, CENTER 1/4- CDR. SEC, 36. EXCEPTION t 7, .4t} & q:1 T 5 N, R 66 't FOUND 2 1./9" PIPE:%1TH 3 .1 4" AL4 NIINUM a CAP, :PLS 19f 7. AS W'-rNESS h�88';2�`Q6"E 1318..33 5:1,02'(1 ) X. PERMIT& PROPERTY J r - PIPELINE EASEMENT, 6 in dia. BOUNDARY--{� 35 ft WIDTH. SPECIFIED REC.. NO, 2016020) PERMIT & EXCEPTION NO. 45 PROPERTY BOUNDARY PIPELINE EASEMENT, 3 in dia. 35 ft WIDTH SPECIFIED FREC. NO..2061012) EXCEPTION.NO. 47 GATE Gas pipe line and valve abandoned- GATE` PIPELINE . EASEMENT . . oo x 401}' i I (REC. NO. 2527890) ] DRILL WINDOW [ EXCEPTION NO..:25 k I f (REC. NO- 282D92r.) Interior fences and gates COULD NOT LOCATE EXCEPTION NO. 33 -lb to be removed prior to mining - Poll[ GATE Hunt Brothers Properties Stile Mining Resource Part of the E'/z of the E'/ of SW 1/4 of Sec 35 and the SW % of Sec 36, TN5, R66W, of the 6thPM, Weld County, Colorado GAS LINE BEYOND I .LiJ] THIS POINT „'• '' U'7 ] F To be removed a ABANDONEDrW ] CENTER PIVOT `. I CONCRETE L — GATE SLAB. ] - - 7C }4 Affected Mining Area r 1 GATE Hunt Brothers Properties, Inc- f*r 0rn ] Survey Parcel III f [52.18 A�c.+ • I Mine Phase 1, Mine Block IA (Hot Plant) (' ►* Mine Phase 2, Mine Blks 2a and 2b '- : 25' PIPELINE EASEMENT us Survey Parcel 11 Alt City of Evans ROW Mine Block ` (REC, "NO. 2049046) u] _'n Mine Phase 4, Mine Blocks 4a thru 4d EXCEPTION NO. 19 N w o Affected Mining Area I I _ _ .- This pipeline is to be moved cD Hunt Brothers Properties, Inc. ] x` ► a 37.86 #c,+ — G out of this area prior to r" rx mining. x Abandoned 3 in. dia. Pipeline Easement, in dia. SURFACE FACILITY n '" — Gas Pipeline No width specified, 50 ft minimum I {REC. NO. 7435773 ED ( PO TION OF (Rec. No- 2329286) EXCEPTION NO. 1 B Interior fences 800' X 800' to be rerrtoved prior to minir--g. I OPERATIONS WINDOW II I 'REC.. , O. 2B2G92f.3 Affected`Minirt . Area EXCEPTION NO.. 33 g�� C) G Hunt Brothers Pro erties, Inc. f PERMIT & EARTHEN DITCH , 62'24 Ac. -t- - f PROPERTY , AL SNG FEf CE LINE :• Survey Parcet t BOUNDARY Mine Phase 1, Mine Block 1 B (Wet Plant)neCATE do Abandoned Mine Phase 3, Mine Blks 3a thru 3d 25 ftlwidthas specified in dia. Go11O, `� /./' electric center line and Alt City of Evans ROW Mine Block ( (Rec- No. 2108159) p PERMIT8I PROPERTY ]I r: itBOUNDARY SEE USN .DETAIL B SEE Waterline i DETAIL A J n City of Evans ' cy 35th Avenue ROW PERMIT BOUNDARY / `� '� PERMIT & Ns�" a rfs. PROPERTY !� BOUNDARY • ] - EXCEPTED PARCEL EXCEPTED PARCEL jZF (REC. NO, 339757B) (REC, NO, 4407999) rn 400' X 4[30' ad` I GATE DRILL WINDOW x GATE (kEC. NO 262006) �'-- GATE 3(OEPTlON :ttd' 33 i PLANT {{ d PLANT SCI Abandoned 15"4.y PROPERTY • 12,6 X2 +`" BOUNDA Au METAL BU1.LU1NC IRRIGATION Abandoned Irrigation . iJ STRUCTURE PONDS •� � PERMIT & PROPERTY BOUNDARY 413 37 67'2.25 EXISTING GRAVEL EXCEPTED PARCEL ROAD AND EASEMENT (REC. No. 2516140) (REC. NO. EXCEPTION NO. 25 (REC NO 2149567) _ EXCEPTION . NO'. 22 S892� 36'E I662.22.EXISTING ACCESS ROAD TO BE ABANDONED EAST -EAST 1/64 OR. SEC_ ..35, SW COR. SEC. 36.1 5 N. T 5 N, R 66 W, FOUND /4" REBAR R 66 W, FOUND 3/4' REBAR WITH 2 1/2 ALUMINUM CAP, WITH 2 1/2 ALUMINUM PI q '0944 CAP. PLS 24607 Stiles Mining Resource Access Latitude 40°2057" N Longitude 104°43'57.5" W LOT. 6, RECX17-0197 (REC. NO. 468 406) r01' 1Y s DETAIL A: 1" = 50' DETAIL L 8: 1" = 50' SOUTH PLATTE RIVER PROPERTY ACCESS Low area that occasionally retains precipitation and/or irrigation tail water. LEGEND = ALIQUOT MONUENT, AS NOTED- = SET 5/8" X 24" REBAR WITH 2" `ALUf INUM CAP, PL5 37971, FOUND 1/' REBAR WITH YELLOW PLASTIC CAP, PLS. 24.307: FOUND 5/5' REBAR WITH 2" ALUMINUM CAP. PLS 9644. 0 = FOUND 1:/2" REBAR p = FOUND 6" STEEL POST UP CO". ;OVERHEAD UTILITY POLE. ® = £AIL/CAS VALVE STRUCTURE. 0 = TANK BATTERY. SEPEITOR, 'r FENCE LINE. OVERHEAD UTILITY LINE. -- I� 5 _ GAS LINE. WATER Li NE. = FLOD PL 4 :QUNDAR AS NOTE/ AS MEASURED BY THIS SURVEY. �•�..ti .. ::`� -.�. _mom, "�!`✓ �I✓ FOUND MONUtEWTED GAP BETWEEN LOT B, . RECI 7=0197 AND REC. NO- 4562229, A NOTED, ERL P BETWEEN LOT B, 1AMR£CX1B-85- Q3. AND REC NO.4562229; AS NOTED. PERMIT BOUNDARY -(112 RECLAMATION PERMIT) STILES MINING RESOUCE GRAPHIC SCALE 0 200 400 600 STILES MINING RESOURCE LOCATION Part of the East /2 of the East'/ of the SE %4 of Section 35 and the Southwest 1/4 of Section 36, Township 5 North, Range 66 West of the 6th P.M., Weld County, Colorado. LL E BEARING DISTANCE L. N5144'31 = 1 '7 8 19779'(R) L2 561' 11'33 27290'(M) 27300'(R) i.3 S2S'OR 24- : 390. 9'1M 390.63 R :.4 N2423 12 A 31 1,13'(F,I) 31 1.35. (R) S73`52:'52 : 1 09.42(M) 10946' R: .. S77'O7'.49"W ' 31.94 I 32.05' Ft' Li N12'2 '53W 4 1164.32(M) 1432(R) i.b 52844'39"E 1 2,08' LINE RADIUS ARC DELTA CHORD BEARING CHORD Cl 165000' 34 .41 120755 NOB 2825W 346.75` C'Z 1550.00' 322.09' 1 1.54'21 " N0 6" 2.6434'x' 321.51 C:3 5934' 70-13' 87`42'44" N6715'251V 66.12' CI 1650,.Ocl';,: 97.51' 03'23`10" ND&58'13' 97.50' NO ':: 03 AND 04' ARE. NON -TANGENT CURVES STILES MINING RESOURCE See Sheet C-2 for line phase, biGck and mining direction diagram. 0 F0 vi i-0 C CO a nU00 CD �N �„� �❑ O Lnp ;i y C _ j a) E [0 CL U) -p C O C' CD C 'E = fl C 0 V fa E 'L cuO2 ti U ❑. (DO U C N ,--t LUc 49 En tan C C31 V❑ UIY Ui --t N � �N N l.ml LU a) U 5- 0 a) t� U - Ow Y C U > O ❑ _in of 3 EXHIBIT D — MINE PLAN A - Description 1. Management and Ownership — The management and mining of the Stiles Mining Resource (site/mine) is by Asphalt Specialties Co., Inc., (ASCI). ASCI has been in the aggregate mining, recycle aggregate materials and construction business for over 29 years. ASCI has the experience to safely and efficiently mine and fill this site. Hunt Brothers Properties, Inc. owns the property and aggregate minerals. 2. Location - The Stiles Mining Resource site is in a portion of the E Y of the E Y of the Southeast Y of Section 35 and a portion of the Southwest Y of Section 36, Township 5 North, Range 66 West of the 6th P.M., Weld County, Colorado. The mine is located ±2.5 miles southwest of the Evans city center and 1.5 miles west of the Town of LaSalle in Weld County, Colorado. The mine adjoins the South Platte River for ±50 feet at the northeast property corner, but the remaining property does not adjoin the riverbank. 3. Access - Primary access to the site is from the entrance road on the north side of Weld County Road (WCR) 394. Directions to mine access when traveling north on US Highway 85 from the Town of LaSalle; turn left on WCR 394 and travel west ±2 miles to the mine access on the north side of WCR 394. Alternately, the mine access is found ±670 ft east of the WCR 394/35 intersection on the north side of WCR 394. The City of Evans 35th Avenue ROW does not currently extend to or intersect with CR 394. a. The Stiles Mining Resource access coordinates are latitude: 40" 20' 57.00" North and longitude: 104e 43' 57.24" West. b. To deter unauthorized entry to the mine ASCI will use no trespassing signs, fencing, gates and locks. c. The expected average number of one-way deliveries will range from 0 to 40 truckloads per day. 4. Annexation, Zoning and Use - The Evans City Limit currently includes ASCI's Parcel III on the west side of 35th Avenue, which is a dedicated City Avenue. The City of Evans is extending their city limit by annexation to include Parcel I and II east of 35th Avenue. City zoning of all three parcels is to be a Heavy Industrial District (1-3). a. Asphalt Specialties intention is to use our asphalt hot plant, recycle aggregate material operation, and aggregate wash plant as a permanent industrial business. This site is a permanent industrial location and shall be the final reclamation for this part of the industrial site as depicted on the mine plan map, Mine Phase 1, Mine Blocks 1A and 16. b. The zoning of Mine Phases 2 through 3 is to be a Heavy Industry District. The initial reclamation for these areas is general agriculture use - dryland pasture. i. Future identification of a heavy industrial use will cause adjustment of the reclamation for portions of this area. c. Final site grading will create a final topography and slope that is proper and safe for heavy industry and dryland pasture uses. 5. Existing Use The property was historically an irrigated farm. The earlier property owners uses for the land included a livestock and dry land grazing operation. The dominant land use surrounding the property is water recharge, oil, gas, residential, heavy industry, and agriculture production. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mlne Plan Draft.docx 6. Water Rights - The Godfrey Ditch shares associated with this land have been sold. Hunt Brothers has the dry up credits that are associated with the property. Existing agriculture water shares in the area are being bought to support front range municipal development and will change the agriculture character of the area. 7. The typical hours of operation are between 6:00 AM and 4:00 PM, Monday through Friday, but this schedule is subject to occasional change. 8. Site Controls — a. Signs will include a Mined Land Reclamation Board (MLRB) / Division of Reclamation, Mining and Safety (DRMS) permit sign, safety, no trespassing, various traffic control, safety instructions, inventory, permit and mine boundary signs. i. The public may not enter the mine site without an escort. Posting of "No Trespassing" signs will take place along the mine perimeter. ii. ASCI, MLRB/DRMS sign at the entrance of the Stiles Mining Resource will be clearly visible from CR 394 and will have the Name of Operator, a statement that a reclamation permit has been issued by the MLRB and the mined land reclamation permit number. ASCI will keep this sign throughout mining and reclamation of the site. b. A water truck will apply water to haul roads and work areas to control dust. c. ASCI will notify DRMS and Colorado Department of Public Health and Environment (CDPHE) of any toxic or hazardous substance spills, including spills of petroleum products, within the permit area. d. Litter is not a significant concern. The inert material types coming onto the site, typically do not have significant amounts of trash. Employees will deposit litter/trash in on site dumpsters. e. Employees will use metal recycle bins to hold metal that is generated at the recycle aggregate material yard. A commercial disposal and recycle operator will supply the bins and dumpsters. A commercial hauler will remove the contents on a regular schedule for recycling or disposal. f. A fire extinguisher is mandatory on all equipment. Employees training supports the safe use of an extinguisher. Employees may use on -site soils to smother the fire. i. The materials imported to the site for backfill will be clean inert material and will not be combustible. ii. Employees will not accept the delivery of organic materials or allow organic substances as backfill material. g. Prior to working at the site, all employees are trained for an adequate response in case of an emergency, each is aware of site safety plans and all employees are certified as Mine Safety and Health Administration (MSHA), Part 46 new or experienced miners. h. A minimum of one on site employee is certified as Heart Saver, in First Aid, in CPR, and in the use of AED. i. Equipment and trucks will generate the only noise on the site. All equipment is equipped with proper mufflers and backup alarms to assure compliance with noise standards. j. A commercial sanitation company will supply and maintain portable toilets. H:\Plts HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.doex k. No toxic or acid-forming materials will be used in material processing or as backfill material. This will prevent leaching of acids into the ground water. If any unknown refuse, acid-forming or toxic producing materials are inadvertently mined, they shall be managed and disposed of in a manner that will control unsightliness and protect the drainage system from pollution. I. No explosives will be used in conjunction with mining or reclamation. B —Earth moving, Mining and Equipment 1. Materials - The mining of construction material including rock, sand, and gravel for use in the production of non-metallic construction products. a. Topsoil — The mining operation will strip topsoil to expose the underlying raw aggregate material deposit. Topsoil storage is shown on Exhibit C Mine Plan Maps. The volume of topsoil for all the mining phases is ±188,000 tons or ±1,500 tons per acre of topsoil. The depth of the topsoil ranges from six (6) inches to twelve (12) inches over the mining area. Striping of the topsoil for phase 1, 2, and 3 and is stored in the mine buffer along the south boundary of phase 1, 2 and 4 in the flood plain and outside of the excavation area. Topsoil storage stockpiles are ±15 ft high for use in future reclamation activities. Topsoil stockpiles will have vegetative stabilization seed mix applied to the surface. b. Overburden —Overburden material will be used to backfill earlier mine excavation areas and reclamation. Overburden stockpiles will be found within the various mining blocks. The volume of overburden for all the mining phases is ±1,125,000 tons or ±9,000 tons per acre of overburden. The depth of the overburden ranges from 2 to 4 feet over the mine area. c. The overburden material is a part of the mine backfill. When mining operations call for overburden materials to be stored over a year, an employee will seed the stockpiles with a reclamation seed mix. This will minimize erosion prior to use in mine reclamation. d. Crusher fines, wash plant fines and clean inert material will be used to backfill the mine. e. Recyclable Aggregate Materials — i. Asphalt paving fragments shall be diverted to the aggregate recycle material operation. It is expected that minimal amounts of small asphalt fragments may be placed in the backfill. Concrete and concrete pieces shall be diverted to the aggregate recycle material operation. It is expected that minimal amounts of small concrete pieces may be placed in the backfill. ii. Any concrete received will be hardened for at least 60 days prior to acceptance, with most of the imported concrete coming from demolition jobs that has been in place for years prior to removal and acceptance at the site. Only hardened asphalt fragments, typically from portions of asphalt parking lots or street replacement, will be received. All asphalt and concrete will be diverted to the aggregate recycle material operation. f. Inert Backfill Materials - All backfill materials received shall be only clean, native, natural, and non -contaminated. Please refer to the reclamation plan. 2. Buffers — Mine buffers vary from 50 to 250 feet in width. The mine buffers will be kept and may be used for reclamation stockpiles and surface ditches. There are various setbacks will be kept during the mining operations from residential structures, out buildings, adjacent roads, structures, utilities and oil and gas infrastructure. The mining boundary line is subject to change as specific soil conditions may require adjustment. DRMS will be notified of any adjustments to a mining boundary line. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.dorx 3. Mining - The mine is organized into four (4) mine phases with twelve (12) mine blocks (1A -B, 2A - B, 3A -D, and 4A -D). The mine blocks vary in size from 10 to 13 acres. a. Mining Direction - i. Mine Phase 1, Block 1A and 1B — mining will occur from west to east. ii. Mine Phase 2 through 4 and their individual mine blocks — mining will occur from North to South as illustrated on the following mining diagram. b. Initially, mine phase 1, 2 and 3, (±75 acres) will have the topsoil and overburden striped, ±3 feet, and placed in temporary stockpiles. No dewatering trenches will be installed during the first striping operations. i. Mine Phase 2 and 3's aggregate deposit will remain exposed until mining catches up with this initial stripping operations. ii. This overburden material will be used to backfill the hot plant (1A) and wet plant (1B) aggregate excavations. c. Mine Phase 1- The hot plant site and recycle material yard (Mine Block 1A) and wet plant site (Mine Block 1B) aggregate material will be mass excavated and placed in raw aggregate stockpiles. i. The Phase 1A and lB aggregate material will be excavated down to ground water and stockpiled at the mass aggregate stockpile area (±10 acres). ii. The dewatering trenches, first pump basin and pumps will be installed prior to the removal of wet material from the mass excavation. iii. The Phase 1A and 1B aggregate mass excavation will be completed down to the bedrock subgrade and placed in a raw aggregate stockpile for future processing. iv. The mine area will be filled and compacted with the overburden excavated from the first striping of Phases 1,2 and 3. The sites will be finished with gravel to facilitate future industrial land uses within 1 year of permit approval. v. No topsoil will be spread on mine blocks 1A or 1B. d. Truck scales and the mine office will be installed with any required utilities. e. The hot plant site will be graded for installation of the permanent hot plant equipment. f. Recycle aggregate crushing and screening equipment will move on site (1A) and begin processing the waste materials into usable recycled aggregate materials ready for sale or use at the asphalt hot plant. g. The wet plant site will be backfilled and graded for installation of the permanent wet plant equipment and infrastructure. h. The wash plant and asphalt hot plant will begin producing products for sale and use in the community. i. The establishment of the hot plant and wet plant sites by using the overburden that is excavated from Phases 1,2 and 3 will affect ±75 acres. 4. Phase 1 extracted raw material stockpiles will be reduced and processed in advance of starting the mining in Phase 2. These crushing and screening operations will process aggregate materials from the mass stockpile for ±2 years prior to the start of mining operations in phase 2. 5. The overall time needed to complete the mining is estimated to be 40 years. Maximum production is expected to be 300,000 tons per year. Due to market and economic considerations, mining could progress faster or slower than expected and more time may be needed for mining and reclamation of the site. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.doex 6 Mine Phase 2 and 3 - Typically, the mining of each mine phase and block will progress beginning at the outer edge of the block where material will be moved toward the interior of eft the block to allow for excavation of the exterior perimeter and slope The mining slope is set up for the entire perimeter of the block in 6 to 12 feet lifts Depending on the soil conditions met during mining, the excavation face may adjust between a 1H 1V and 3H 1V slope to bedrock Temporary excavation slopes and temporary stockpiled material slopes may be steeper, as they are temporary All slopes will be maintained for site safety and to minimize material erosion Excavated mine slopes will be backfilled against with backfill material and no mine slopes will remain Mining of the aggregate material will progress down to the underlying shale bedrock 7 Mine Phase 4 will include striping and stockpiling of the topsoil and overburden prior to mining Topsoil will be stored in phase 4, mine block 4d No other operations will take place in phase 4 until mining is approaching completion in phase 3, otherwise operations will follow the above description for Mine Phase 2 and 3. MINING DIAGRAM © Mine Phase® Mine Mock and M ring Direction 8 Dewatering trenches, pump basins, ditches, and pumps will be installed prior to the excavation of aggregate material from any mine block All mine phases and blocks will include the dewatering trenches around the perimeter that will be placed at the toe of each successive 3H 1V mining slope The aggregate material is ±36 feet deep As a mine block is mined deeper, the dewatering trench will be lowered and moved laterally along the ±3H 1V slope H \Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D Mine Plan\Mine Plan Draft docx and then the material will be dewatered to help dry the raw aggregate material in the center of the block which will be excavated and removed from the pit. We are planning to mine and dewater each block in three lifts. The excavated raw aggregate material will be temporarily stockpiled near the portable aggregate processing equipment sites. When the aggregate material is processed, then it is available for sale, further processing at the wet plant or to be used by the asphalt hot plant as a part of the hot bituminous asphalt paving material. 9. All aggregate material excavated from the mine phases will be dewatered and dry mined. 10. See the reclamation plan for the Mine Phase 1 overburden fill plan, and Phase 2 through 4 inert material fill plan. 11. Equipment - The aggregate material will be mined using, but not limited to the following equipment. a. Earth moving equipment — Dozers, loaders, excavators, articulated haul trucks, water truck and possibly scrapers will be used for the mining and earth moving operations. b. Processing Equipment — Feeders, screens, jaw, cone, and impact crushers; screening plant, log washer, sand screw, wet plant, conveyors, stackers, and other miscellaneous processing equipment. All aggregate crushing/screening equipment is mobile for relocation in the mine. c. Dewatering the mine will be carried out with pumps, pump basins, pipelines, and ditches as necessary to support the various block mining operations and to achieve dry mining conditions. d. Miscellaneous Equipment — Pumps for dust control systems, pipe, tanks, pickups, mechanics trucks, lube trucks, trash receptacles, metal recycle bins, portable toilets, truck scales, scale house/office and asphalt hot plant. e. No fuel will be stored on site. 12. The final site grading will return the property to topographic conditions consistent with pre - development conditions, as shown on the final reclamation map. 13. All local, state, and federal rules, regulations and laws will be followed for the storage and handling of any fuel, asphalt and additives needed to produce hot asphalt materials. C — Water diversions and impoundments — 1. Dewatering trenches will be constructed along the perimeter of each mining block. The dewatering trench around the perimeter of the mine block will be placed at the toe of the mining slope. As the block is mined deeper the dewatering trench will be lowered and moved laterally along the ±3H:1V mining slope toward the center of that block. The depth of the ditches will vary as the mining progresses deeper into the alluvium to keep the ground water level below the active mining bottom surface and minimize the exposed groundwater surface area. Each mining block will require about three lifts to fully excavate the aggregate material from each block. The dewatering ditches will flow to a pump basin, water will be pumped into a discharge ditch which traverses the north end of the mining phases and eventually discharges into the South Platte River at the Northeast corner of the mine property. 2. Flood Plain / Flood Way — The entire site is in either the South Platte River flood plain or flood way. No material fill will take place in the flood way above the existing ground elevation. No H:\Plts HBP Plants\EVANS\StIles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.docx filling with construction material will not take place within one hundred (100) feet of the South Platte River. 3. Surface Water! Drainage - All mine site operations take place below pre -development grades. All surface drainage water is to be collected at lower elevations from the mining operations. The collected waters uses include dust suppression, allowed to evaporate, or discharged per the substitute water supply plan. 4. Wetlands - There are no wetlands found within mine boundaries. 5. Asphalt Specialties will have approved flood permits, gravel pit well permit and a substitute water supply plan prior to exposing groundwater or working in the floodway. Revision of the substitute water supply plan takes place annually and accounts for water consumed by exposing groundwater to evaporation, dust control and water contained in the aggregate materials. Precipitation runs off are contained in the mine areas for use as dust suppression or allowed to evaporate. D — Size of the largest one-time affected land area including the City of Evans 35th Avenue ROW and Hunt Brother Properties is 158.3 acres and the minable area is ±125 acres. STILES MINING RESOURCE I -III Affected Ares MW FAW fig Uitarsy nom t Ammi 1 Il- East I 52.2 14 35'°' Ave J 6.0 EvansRaad 5,0 TOTAL I 158.3 I 0 Mine phases consist of a sequence of smaller mine blocks varying in size from 10 to 13 acres. The first mass excavation of topsoil, overburden, and raw aggregate for the establishment of the asphalt hot plant, recycle material site and wet plant will affect ±75 acres in phases 1, 2 and 3. The use of the large quantity of overburden material is to backfill the two industrial plant sites. After the first striping and mass excavation, the mine will follow a standard pattern for each block, including striping, dewatering, mining, back filling and placing topsoil just prior to seeding. Note: The complete mining, backfilling and reclamation of mine blocks 1A and 1B will result in the final intended industrial use. The completion of 1A and 1B's reclamation will reduce the initial impacted area to ±60 acres within the first 18 months of operation. The largest mine impact area for the remaining mine life is ±60 acres. E - Mining Sequence and Schedule - ASCI plans to mine and reclaim the Stiles Mining Resource in four (4) phases. Mining will progress through the phases and mine blocks as illustrated on the above Mining Diagram and on the following schedule. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Pian\Mine Plan Draft.docx Stiles Mining Resource Mine Phase and Block Approximate Year of Mining Schedule Operation Ift�e 8 ck DFSOUPTIION aerie Block #Iris AM Stripe one Bax#fill Ir efoaoe ri e► ) t~ �12 2022 2022 .223 ill ke MWe 2 jWea Samy paro Z 2A 8 2022 2025 $ zD31 I ne Y1i a 3 qtr I - 3D 10 1022 1046 t3tyr of Evans - sstli Ave me Right of A3A - 3D 6 2032 zD3z z At4 ees il�aesie'erPe4 l i Toil affected minable area indudlig Chy of Evans ROW ± 125 1) Cityof Evans - 35th Avenue Right of Way is currently 100 ft wide and will expand to 120 ft in width. We have allowed ±6 acres for affected land 2) Total PropertyArea including the Cityof Evans S55th Avenue ROW is ±1583 Acres 3) When the City of Evans decides to mine the 35th Avenue ROW. the affected minable area will remain the equal to ±125 Acres When this additional area is mined; DRMS will be notified of the expansion to mine blocks SA through 3D. It is anticipated that the ROW will be stripped prior to the start of mining in Mine Block 3A. 4) Total Affected Area is the same because the City of Even ROW is within the mine boundary and will be used for mining purposes during the mining operation a: ±137 Acres FLOOD FL M / FLOOD WAY Industrial/Commercial land located in flood plain =±50Acres Industrial/Commercial land located in flood way ±108 Acres P ME BUFFER Mine Buffer ±335 Acres F -Nature of the deposit — Subsurface drilling and testing verifies that the Stiles Mining Resource property has a significant commercial deposit of sand and gravel. The average topsoil and overburden thickness is 3 ft, and the sand and gravel material depth is ±36 ft. The nature of the stratum below the sand and gravel material is grey shale. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.docx The average ground surface elevation is 4,667 ft and varies in elevation from 4,670 to 4,662. The existing ground surface slope is ± 0.002 ft/ft toward the northeast. It is expected that ground water will be met about six (6) feet below the ground surface. G — The primary commodity to be mined is sand and gravel. This material will be processed into various products and gradations to be used as a part of construction materials including such as asphalt, concrete, grout, structural fill, and aggregate base course. H — No incidental products. I —There are no explosives used in the mining process. J — The access road is to be constructed from WCR 394 to Parcel I and III. All other roads will be temporary at the mine site. ASCI intends to work cooperatively with the City of Evans on 35th Avenues future development and construction. See the Mine Plan for Access Road details. There is no installation of new road drainage or associated runoff conveyance structures. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh D - Mine Plan\Mine Plan Draft.docx Exhibit E — Reclamation Plan Parcel III :Pa=rcelParcel II SOUTHPIATTERIVER • `v' 'wp1aWle4`va$5 �a..w-• �tlp.,_- r � fJBne Phase 1 Wing Phrse ! Mine Phase 4 fddae B:ock,2A, 49 tF [n': za E!zr^ 3?} '!` ; � Mine Bled .4A r r r m r s E�ireitllCY . r m r s r ¢ ea. c m a m® ac -- rn c m e - xr p LYir�ticr. i I �₹�' almJnilac aratrslr i_ PirFsE3 -- C oteection Pig 1 f a ® w r L. r r r_ M1i .Iv i !. .' -. w ar T s ... �.. s a r 1" a Ph 4 Bt1� 4B ' .\ is Q/ p. _ P 6I. _ _ d 0 O 0 _ v O 0 .Y 1. -I I'}ii3B.:3.'., 2 Ph461K4C ' t .r to. M � m ® m r _ {P — a r¢ t � i _ m _ i2 I ii:SBK57 ,Y.IT ,Y3+ Ph 4 SLK 4D c o m { L Y— m Y S S r r a- — nocnasnt 11F a- • ; kke V , t • r 1 1• M,ne Blade j} f 1 OMlaVMd _• -, r 7', MMing PSa 1 �y j ' r MffP Pd ff SI> k. -- ______N\ s i r 'a SnUM MINING RESOURCE •Mine Phase, Mine Block 1 <±' � r ,- • and Mining D(aectfan r , 1) Asphalt Specialties will use procedures that minimize area disruption by our mining operation. Reclamation is achieved by the establishment of native grass and forbs; stabilization of soil and protection of the area water resources that provide for the beneficial use of the affected lands. 2) Project reclamation will return this site to usable property, by using inert material to fill the mined areas. The site reclamation plan calls for phased reclamation, with reclamation phase 1 continuing from west to east; and phases 2 through 4 progressing from north to south. Reclamation phase areas will be between 10 to 13 acres. Reclamation will include the placement and seeding of cover material over fill areas, except for permanent road and heavy industrial areas. 3) The Stiles Mining Resource permit area is 158.3 acres which includes the City of Evans 35th Avenue ROW and Hunt Brother Properties. The minable area is ±125 acres that is divided into four mine phases and twelve mine blocks. The area affected by mining at one time will be ±60 acres; except for the first two years when the overburden striping operations will affect about 75 acres. 4) The time to complete the mining of the area is estimated to be 40 years. Maximum production is expected to be ±300,000 tons per year. Final reclamation is expected to be complete in ±45 years. Due to market and economic considerations, mining could progress faster or slower than expected, which will adjust the time for mining and reclamation of the site. 5) Use - The property at one time was worked as an irrigated farm. The prior property owners use for the land included a livestock and dry land grazing operation. The dominant land uses surrounding the property includes water recharge to the west; oil and gas in the area, recreation along the river, residential to the south along CR 394, heavy industry on the north side of the river and agriculture H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx production in the area. The completion of the bridge and 35th Avenue will connect this area to the existing industrial area that is north of the river. a) The reclamation uses for the Stiles Mining Resource's Include General Agriculture - dryland pasture and heavy industry. Reclamation to general agriculture and heavy industry is a positive and useful post -closure land use that is compatible with surrounding uses. b) The mining area will be reclaimed as either heavy industrial or general agriculture which will be reseeded with native grass and forb vegetation. c) Initially ASCI is planning to reclaim a twenty-three (23) acres of the of the permit area as heavy industrial within the first two years of operation. ASCI plan to reclaim one hundred and two (102) acres of the remaining mineable area as general agriculture — dryland pasture. The balance of the properties reclamation will consist of heavy industry, unimproved access roads or otherwise undisturbed land. 6) The Evans City limit currently includes ASCI's Parcel III on the west side of 35th Avenue, which is an undeveloped City Avenue. The City of Evans is extending their city limit by annexation to include Parcel I and II east of 35th Avenue. a) The annexation of the land by the City of Evans includes zoning of the property as a Heavy Industrial District, 1-3, per the City of Evans — Municipal Code. Title 18 — Land Development Code. Chapter 18.18.04.080 — C. Heavy Industrial District (1-3). The purpose of this zoning is to supply a district in which heavy industrial uses are found within the city limit. Heavy industry consists of uses such as quarry and gravel pits, asphalt plants, ready mix concrete plants, large-scale industry, used auto parts, incinerators, and other similar operations. b) Asphalt Specialties intention is to run our asphalt hot plant, recycle aggregate material operation, and aggregate wash plant as a permanent industrial businesses. This site is a permanent industrial location and shall be the final reclamation for this part of the industrial site as depicted on the mine plan map, Mine Phase 1, Mine Blocks 1A and 1B. 1) A minimum of twenty-three (23) acres will be reclaimed to heavy industrial within the first two years of operation. c) Mine Phases 2 through 4 will be zoned as a Heavy Industry District but will initially be reclaimed as general agriculture — dryland pasture, until such time that a heavy industrial use is found. Materials 1) Existing site materials and imported inert materials will be used to backfill the mine site. 2) Topsoil —The topsoil will be stored as shown on Exhibit C Mine Plan Map. The volume of topsoil for all the mining phases is ±188,000 tons or ±1,500 tons per acre. The depth of the topsoil ranges from six (6) to twelve (12) inches over the mining area. The topsoil will be striped for phase 1, 2, and 3 and stored in the mine buffer along the south boundary of phase 1, 2 and 4 in the flood plain and outside of the excavation area. The topsoil will be stored in stockpiles about 15 ft high for future reclamation activities. Topsoil stockpiles will have vegetative stabilization applied to the surface. 3) Overburden - Overburden will be used as backfill of phase 1 excavation areas. Overburden material will be used on site for mine backfill and reclamation. Overburden stockpiles will be found within the various mining blocks. The volume of overburden for all the mining phases is ±1,125,000 tons or ±9,000 tons per acre. The depth of the overburden ranges from 2 to 4 feet over the mine area. a) Overburden stockpiles shall be seeded if it is predicted the material will be stored more than one year. This will minimize erosion prior to use in mine reclamation. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx 4) BACKFILL a) Onsite overburden, onsite crusher fines, wash plant fines and imported inert material will be used to backfill the mine. b) The only material received at the site will be inert material per the DRMS Construction Material regulations 2 CCR 407-4 Rule No. 1.1 Definition (20) " Inert Material " means non -water-soluble and non-putrescible solids together with such minor amounts and types of other materials. unless such materials are acid or toxic producing, as will not significantly affect the inert nature of such solids. The term includes, but Is not limited to, earth, sand, gravel, rock. concrete which has been in a hardened state for at least sixty days. masonry, asphalt paving fragments, and other inert solids. c) Inert Backfill Material - It is ASCI's intention to use primarily native and natural aggregate materials for inert backfill material. It is especially important to ASCI that only acceptable non - contaminated, inert materials are delivered to the site. ASCI will use reputable contractors that will follow site permit rules and guidelines. ASCI will collaborate with the contractors to obtain assurances that the inert materials are free of contaminants and are native or natural materials. ASCI will exercise every effort to learn as much as reasonably possible about the inert materials received at the site to ensure that those materials are free of contaminants. All inert materials are delivered by pre -approved contractors that have a history of working with ASCI. d) Clean, offsite - inert materials will be accepted and incorporated as mine backfill materialthat include soil, earth, dirt, gravel, sand, rock, and masonry. Onsite materials to be incorporated into the backfill may include overburden, wash plant and crusher fines. e) Using inert fill materials to fill the site will allow for future heavy industry or dryland pasture use on the property. The benefits for the inert fill materials are: i) Creating usable property for agriculture use. ii) Increasing the visual attractiveness of the site and surrounding area. iii) Providing private entities with inert fill alternatives. iv) Revenue to the City of Evans and the State in future taxes from industrial companies that will locate to the site. v) Increased employment opportunities created by the development of the inert filling operations and reclamation of this site. f) No contaminated materials will be allowed on or accepted at the site. g) Asphalt and concrete materials are considered an inert material, but ASCI will be diverted these materials to the recycled aggregate materials operation. PHASED RECLAMATION 1) The site will be filled in phases. Reclamation will occur concurrently with mining wherever possible to directly backfill material into previously mined areas. a) The expected reclamation schedule is presented in the following table. Inert backfill material may be stockpiled until an excavation is ready to receive the backfill material. 2) Mine Phase 1, Mine Blocks 1A (Asphalt Hot Plant/Recycle material area, ±12 acres and Mine Block 1B is the wet plant area (±11 acres) reclamation is heavy industry. a) These areas will be filled with onsite overburden to setup final site contours for the industrial facilities in about one year. b) These sites will be graveled. No topsoil or seeding is needed to complete the reclamation of these areas. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx 3) Reclamation of Mine Phases 2 through 4, each mine block will be reclaimed as General Agriculture - dryland pasture. a) Future industrial use of Mine Phases 2 through 4— When an industrial use is found for a mine phase/block (#), a technical revision will notify the Division Reclamation, Mining and Safety that the City of Evans has authorized a new industrial use for areas currently planned as General Agriculture reclamation. b) Adequate land area will be subdivided and developed as needed for the future heavy industrial use. Until a workable Industrial use is found, reclamation of the property will be managed as general agriculture - dryland pasture. c) Mine phase 2, 3 and 4 will be filled with clean inert backfill from North to South. The mine blocks will be graded to contours consistent with the reclamation plan and similar to existing contours. Based on an estimated annual fill rate of 250,000 tons/yr., it will take ±45 years to complete the clean inert fill and final reclamation of mine phases 2 through 4. 4) . The City of Evans 35th Avenue and PDC Energy's gas pipeline right of ways will be reclaimed as dry land pasture, except for permanent access roads. 5) BACKFILL - After an area of the property has been mined of sand and gravel, backfilling of the excavated areas will take place as the first step of the Stiles Mining Resource reclamation plan. The compacted backfill material will be placed in lifts from the bottom of the mine to within ±6 inches of the land surface. ASCI shall backfill the mined area with onsite overburden and inert materials that are compacted for stability. a) Backfill material will be imported to the mine with articulated dump trucks and/or highway dump trucks. The material will be placed, spread, and compacted in 1 -to -2 -foot lifts using a bulldozer, excavator, or loader. Compaction will take place during the filling process, as heavy trucks and equipment traverse over the fill. b) Backfill materials used within the affected area will be managed to prevent any unauthorized release of pollutants to the surface drainage system. 6) Completion of inert backfill with topsoil. a) After completion of the inert material backfill, a final topsoil cover ± six (6) inches thick will be placed on top of the backfill to reach final grade. The topsoil layer will be seeded with a native grass seed mix to return the property to general agricultural — dryland pasture use. This material will be applied to all disturbed areas, with exception of industrial areas, permanent access roads and mine buffers. 7) The Site will be graded and returned to the approximate topographic elevations prior to mining. The approximate final contours of the Site are shown on Exhibit F - Reclamation Plan Map. The final grades will allow for the development of heavy industry uses. The final grades will allow general agriculture operations, farm machinery and livestock to traverse the area. a) There are no permanent steep slopes at the site. b) Temporary excavation slopes and temporary stockpiled material slopes may range from 1:1 to 3:1 depending on soil conditions in the mine. All slopes will be maintained for site safety and to minimize material erosion. c) Final grades will allow for site drainage to flow gently as sheet flow to northeast, consistent with pre -development drainage. d) The grading at Stiles Mining Resource shall control water runoff, erosion, and siltation to protect all areas outside the mine. During mining operations, the site will be graded, and best H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx management practices will be used to keep all storm water on the site and within the mine boundary. e) All backfilling and grading shall be completed as soon as possible after the mining process. 8) Reclamation Items a) No woody vegetation is present within affected areas. b) No organic materials will be used for backfilling material. c) No inert material will be backfilled outside the affected permitted area. d) No highwalls will be left on site. Temporary highwalls may be used during the mining operations. All temporary mining highwalls will be inspected daily and maintained in a stable condition. e) No toxic or acid-forming materials will be used in material processing or as backfill material. This will prevent leaching of acids into the ground water. If any unknown refuse, acid-forming or toxic producing materials are inadvertently mined, they shall be managed and disposed of in a manner that will control unsightliness and protect the drainage system from pollution. f) No building or structures are to be left on -site or constructed as part of the reclamation plan. g) No earthen dams will need to be constructed. h) No drill or auger holes will remain as part of this mining operation. i) No solid waste will be accepted at this site. j) Topsoil stockpiles are in locations and configurations to minimize their erosion and disturbance. Topsoil will be replaced and graded to mimic pre -mining elevations. j) All refuse will be disposed of to protect the South Platte River drainage system. WATER 1) Water - ASCI will minimize disturbances to the prevailing hydrologic balance and water quality of systems (surface and groundwater) both during and after mining and reclamation phases. a) ASCI will follow applicable Colorado water laws and regulations and will not injure any existing water rights. b) ASCI will follow and keep water quality standards of the Water Quality Control Commission (WQCC). c) No unauthorized release of pollutants to groundwater will occur from materials mined, handled, or used as inert backfill. d) All surface areas and temporary stockpiles piles will be stabilized to effectively control erosion using proper erosion best management practices. e) All mined material not suitable for sale or off -site use such as wash plant and crusher fines will be disposed of in the inert backfill to prevent any release to the surface drainage system. TOPSOILING 1) During mining the topsoil will be removed, segregated, and stabilized with a vegetative cover away from other material stockpiles. a) The vegetative cover shall be used to protect the topsoil from erosion and to assure that it is in usable condition for reclamation. b) Every effort will be made to conserve workable topsoil. 2) Topsoil stockpiles shall be stored in configurations to minimize erosion and found in areas where disturbance is minimized by ongoing mining operations. Such stockpile areas are in the affected mining area. 3) Once stockpiled, the topsoil shall be rehandled as little as possible until replacement on the reclaimed mine surface. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx 4) The topsoil will be replaced in a uniform and smooth lift to material. 5) Soil testing maybe conducted on the topsoil because of the extensive earth moving and storage of the topsoil. The grass seed needs nutrients and moisture to germinate and grow. a) Native grasses in the seedling stage are not typically responsive to soil nitrogen. Most weed species can be very vigorous when soil nitrogen supplies are generous. Soil tests may show deficiencies of soil nutrients: phosphorus, potassium, sulfur, zinc. These deficiencies may be corrected by a fertilizer application prior to cover crop seeding or native grass seeding. b) Fertilizer is not recommended now, but in the future as reclamation progresses, it may be determined that fertilizer is needed to help in the establishment of a healthy stand of perennial grass. ASCI may add fertilizers and/or soils amendments, per the recommendation of an agronomist and the soil tests at the time. VEGETATION RECLAMATION — ASCI's reclamation plan for the surface of Mine Phase 2 through 4 and the mine buffers is general agriculture - dryland pasture. The dryland pasture will have vegetation that is diverse and capable of self -regeneration. The fill areas, as well as other disturbed areas, will be revegetated with non -irrigated native grass and forb seed mixes. Natives plant species are tolerant to extremes of heat or cold, drought and a variety of other harsh environmental conditions. PLANTING METHODS AND DEPTHS 1) ASCI will use two seeding methods which are drill seeding and broadcast seeding. Drill seeding places the seed in a firm seed bed, just under the surface. This supplies the best seed/soil contact and the highest success rates. ASCI will drill seed at rate of 12 —16 pounds of pure live seed (pis)/acre. 2) ASCI will also use broadcast or hand seeding. Broadcast seed is applied directly to the soil surface at twice the drill seed rate or 24 to 32 pis/acre. Broadcast seeding will be used in isolated areas to fill in gaps in the seed coverage. 3) ASCI will use either a cover crop or native grass straw mulch to protect and enhance the success of the reclamation grass / forb establishment. 4) Seed planting depths will be reviewed and taken into consideration prior to planting. Native grass seed should not be planted too deep and is typically between % to Y inch below the ground surface. 5) Access roads and/or fire lanes will be constructed through areas to be planted, as necessary. 6) Reclamation will not include trees or shrubs. 7) Grazing will not occur until the vegetation is regenerating with good grass ground cover. 8) ASCI will employ the right techniques of site preparation to ensure a diverse and long-lasting vegetative cover (e.g., spraying herbicides, burning, discing, crimping, ripping, mulching, soil amendments and fertilizers). 9) ASCI will watch the progress of revegetation and implement weed control practices that are proper for any areas infested by noxious weed species. SEEDING RATES 1) Drill seeding: 12-16 pounds pure live seed (pls)/acre 2) Broadcast seeding: 24-32 pis/acre 3) Cover crop seeding: 5-10 pounds/acre NATIVE GRASS AND FORBS 1) NATIVE GRASS AND FORBS - Natives plant species are tolerant to extremes of heat or cold, drought and a variety of other harsh environmental conditions. The dryland pasture will have vegetation that is diverse and capable of self -regeneration. Native species generally have small seeds and require H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx shallow seeding depths (144-W'). Seed can remain viable for years until the right soil conditions are met for seed germination. Germination can be prolonged due to naturally occurring seed dormancy. 2) WILDFLOWERS (Forbs) Native wildflowers are an important addition to this native grass planting. Besides adding beauty to stands of native grasses, wildflowers are an important food source for game birds, songbirds, and mammalian wildlife as well as grazing livestock. Wildflowers will be planted one to three years after establishment of the native grasses. This would allow herbicide use until the grasses are established and herbicides are not needed. Wildflower species grow well in stands of established grass. 3) SEED MIXES Redamadon Native Gram Seed 1MBc Sties Ining Resource - Weld Cmady pls / acre % See Mix Western Whetgrass LArrtha, Barton,Rana) 2.54 1891 Blue Grams 1Hach1ta 1.50 11 Sideoats Grams (Vaughn, Butte, Nhrer, El Reno, Haskell 2.25 1 Smooth Brome 2.00 14 Sand droped 0.25 291 Perennial Ryegrass (Calibra or Garlbakil tetr 0.75 5 Slender Wheatgrass IPryor, Re ierme or San 2.50 Alkai rasa Fults I I Salton Sea L25 99 Swat rasa(Nebraska 28 Black) 1.00 79 Total: 14.001 100%I Red lion Native Farb Seed r Stiles u&i Resource - Weld Cnwdy ple / e % Seed Mix Western Yarrow 0.14 Plains Coreopsis 0.27 09 Purple Prairie Clover 0.59 139 Narrowleaf Pew 0.09 29 Blanketflower 0.45 1091 Dotted Gayleattier 0.09 29 Blue Flax LW 359 CIaspli Coneflawer 0.14 39 Prairie Coradower 0.32 79 Me,dcan Hot 0.32 79 Scarlet Globemalow 0.14 39 Prairie Aster 0.14 39 PraVie 0.09 291 LanoeIeafCorpsls 0.18 491 Totat 4.50 1 PLANTING, MULCH OR COVER CROP 1) PLANTING WINDOW FOR NATIVE SEED - Ideal dormant seeding window is December 1— May 1 for the native grasses, followed by an application of crimped native grass hay. Seed may remain viable for years in the soil waiting for the right conditions to germinate. Native seed planting is typically H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx planned for December through May. This timing will improve seed and soil contact by taking advantage of the pounding action of rainfall, weight of snow and the freeze/thaw heaving action in the soil. a) NATIVE SEED PLANTING FOLLOWED BY NATIVE GRASS HAY MULCH - If seeding grasses and forbs into bare soil is needed, ASCI will use crimped in native grass hay to slow the wind and water erosion. Crimped hay will be applied at ±2 tons/acre of weed free native grass. Hay length should be at least ten (1O) inches long for 7O% of the product used. The hay should be clean and free of mold, decay, mud, and other debris. 2) ALTERNATE METHOD - PLANTING WINDOW FOR COVER CROP AND NATIVE SEED - If the cover crop seed planting window is May —July; ASCI will plant a sterile sorghum cover crop, then mow'to kill the cover crop before viable sorghum seed formation is achieved later in the season. Then in December — May: the native seed mix will be planted into the sorghum cover mulch. This planting sequence will not require the native grass hay mulch. a) PLANTING A COVER CROP FOLLOWED BY NATIVE SEED PLANTING - A sterile sorghum cover crop will be planted prior to seeding of natives grasses. The cover crop residue will supply protection that will guard the soil against wind and water erosion. Seed formation by these cover crops can be limited or controlled using sterile hybrids and by planting late so that sorghums are not able to mature and form seed. The sorghum will be allowed to grow, then killed by mowing prior to planting the native grass seed. The sorghum cover crop mulch will not readily decompose. This area needs a persistent mulch due to the semi -arid, low humidity, and windy environment. Mulch supplies shading which slows the drying of the soil surface. Surface soil moisture and maintenance of mulch or a cover crop residue, is essential to native grass establishment. 3) ASCI will avoid cover crops which leave residues that may be allopathic (naturally occurring chemicals that inhibit germination of the native grass seedlings) such as wheat stubble or wheat straw mulch and will not be used to cover the native grass crop. WEEDS — 1) Periodic weed inspections will monitor for weed infestations until the reclamation bond is released. ASCI will implement cultural, mechanical, and biological control methods including an aggressive mowing program to prevent the growth and establishment of weeds. 2) After the topsoil is replaced, which has a significant seed load, we will watch for the emergence of noxious weeds and treat accordingly. a) Once the topsoil is placed and graded, tillage will be kept to a minimum. b) By taking this extra time to evaluate the weeds on the property, ASCI will increase the of success of establishment of the native grass/forb establishment. Reducing the population of weed seeds prior to planting the reclamation crop is important to successful establishment of the reclamation crop. 3) The primary method of weed control will be mowing. a) Mowing is the best method of weed control in native grass plantings. Weeds commonly achieve plant height well above that of native grasses in the first season of growth. Mowing improves the competitive advantage of native grasses. The site will be inspected to decide the best mowing height that will remove as significant foliage from weeds and keep damage to the native grasses leaf area to a minimum. b) Mow whenever considerable damage can be dealt to the weed population. c) Mowing large weeds can cover small native seedlings with large amounts of residue. Removal of a thick weed canopy can occasionally cause native seedlings to be "shocked" by sudden exposure to full sunlight. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibft E Reclamation Plan.docx d) Frequent mowing is the best means of reduce excessive mowing residue and sunlight shock from removing the weed cover. e) Mowing improves native grass seedlings' ability to compete with weeds. f) Mowing for weed control will be relied on throughout the establishment period. 4) When cover crops are proven prior to native seeding, it may be beneficial to control weeds in the cover crop. Herbicides will be chosen that will not carryover in the soil to cause problems for new native grasses. Native grass species can be sensitive to herbicides prior to becoming fully established and it is our intention to avoid herbicides the first year. 5) Weed management strategies will be implemented from the outset to achieve final reclamation. a) Methods include keeping healthy pastures, using weed -free crop seed, weed -free manure and hay, and clean harvesting and tillage equipment, as well as the elimination of weed infestations in areas bordering cropland, and in irrigation ditches and canals. b) Cultural: Methods include and are not limited to: Setting up and managing an adequate population of desirable vegetation to compete with the weeds; using livestock (cattle, goats, sheep) when possible; mulching; burning; and even plastic weed barriers. c) Mechanical: Methods include mowing and tillage. d) Biological: Biological weed control involves the use of natural enemies for the control of specific weed species. This method can be successful especially when combined with other control methods. e) Chemical: Always read the label before using any herbicide! i) If needed, herbicide application will be applied to further control weed infestations per the recommendation of a licensed and bonded herbicide applicator. ASCI will work with a knowledgeable area agronomists who is experienced with local conditions. SCHEDULE Stiles Mining Resource Reshewden Phase and Binh Sabadnle Approximate Year for Operation r 84ise BuffeWaed Sendinga DESWIFF10N tbm 81�e Afaah Nackmea Baddill Control so Weed Radtaraatiorh Phase Bloch i 1 (bw) 3eedhig cesrod Beihxae Mtnelrbnel(WleetSwvelrAiircfl 307. 12 2022 2022 NA 2024 Mlnei pEi(M k3u V4yPer eyt) It 2023 2002 NA 2024 2A B Z0M 2022 2028 203,3 Mine Phase 2(Weat9urvey Pacel BI) Z a 2087 2022 2031 2036 3tf., 2036 2041 8s 2041 2046 MhheP hne3(titiiddleArrhra(►tsareei3 iB 2045 2050 t� 30 2048 2063 cityofEvara-35thAveiw iiightafway Alt SR -3D 6 2048 2022 2048 2853 72a":W i p322 2051 2056 2050 2059 One;Phaae4 j0A Sun"Pervel 4 2058 2083 - All mine buffers will be mowed and maintained forthe donattonhofthe mine operation and r esfemation. - We plan to combat the significant invasive, nonnetwrweedspedeson thisstte with the use of native plants forrevegetatlon and reclamation. -The Hunt Brothers property, Parcel land f1 are Is beinganhexed by the City of Evans and all three Parels will be zoned as a Heavy Industrial (1-3) area. - Mine blocks 1A and 18 have been indentifed as heavy industrial (1-3). - The remaining mine blocks 2A through 4Dare zoned as a heavy hidasty district (13). When an industrial use is identified for an area, the land will be developed forthat industrtai use. Ve& will be notfRed ptiorto industrial development. - All remaining Mine Block areas will be reclaimed as dryland nativegress pasture until the Identification of an appropriate Industrial use. H:\Pits HOP Plants\EVANS\Stiles Mining Resource\Exh E Reclamation\Exhibit E Reclamation Plan.docx Permit or ROW Boundary Min. Buffer 50 ft. Mine Boundary Buffer Width Varies Permit or ROW Boundary C Reclaimed mined land surface to approximate current surface elevation. Topsoil Depth ±0.5 ft. Final Surface Elevation approximates current topography. Inert Backfill Depth ±37 ft. Mine Boundary Inert Rar_kfll Ground Dewatering Inert Backfill Subgrade TYPICAL RECLAMATION CROSS SECTION NTS Redarnation Native Grass Seed Mix Stiles Mining Resource - Weld County pis acre Seed Mix Western Wheat ras5 (Ar dba, arton, osana) 2.50 18% Blue Grarna (Hachital, Lovin ton x.50 11% Sideoats Grama (Vaughn, Butte, Ninerr El Reno, Haskell; _ jtppa—�y%..�y� .dL�6Y Smooth rome (Lincoln, Manchar 2.00 14 Sand dropseed 0,25 2 Perennial Ryegrass -(Calrhra or Garibaldi tetra io[d,.i 0_ 5% le SderWheatgrass(Pryor,Revenue_or San Luis) 2.50 18% Alkali rass Fufts Zia Salton Sea 1.25 5% Switchgrass (Nebraska 28, Blackwell} 1. 7% Total: 14.00 100% Reclamation Native Forb Seed Mix Stiles li'iratrr Iesource - Weld county pis / acre Seed Mix �._ Western Yarrow 0.14 3% Plains Coreo Ms 0.27 6 Purple Prairie Clover 0.59 13 Narr wleaf Pertstemon 0.09 2% Blanketflc wer 0.45 10% Dotted Gayfeather 0.09 Blue Flax 1.58 35% dapingcbriefiower 1.14 3% Prairie CgrtefloiVer 0.32 7% Mexican Hat 0.32 7% Scarlet Globermllcw 0.14 3% Prairie Aster C.14 3% Prairie Cinquefoil 0.09 2% Lanceleaf Coreo sis 0'.18 4% Total: 4.50 100% REMARKS_ : f Seed Mix to be planted one year after es.tabr shrnent of the t':":.e Grasses. r~ above rates are fcsr drlmng cn r, double these rates for broad ra :t hand seeding. Seeds sl ouid be pi anted 1/4 to 12 inth deep. ant planting window is Be e tber 1- May S With a native g,re _ s a{ mu ch at 2 to ns/acre. A _ta 1 e sorghum cover crop maybe used as an alternate method. It o er Q C Co O ` O D0 ors { rn U 00 © O t 0 I I-- 4J E 1 f0 (I) C -o o C f0 _c U c 4 � � 0 O E 2 cu fl tU �O p o `cn cn co W N LLJ uJ 0U W C U W O� C. fu rfl 1 of1 EXHIBIT G - WATER INIFORMAT O Operations at the Stiles Mining Resource will affect surface water associated with the South Platte River located to the north of the mine (Exhibit C) and groundwater associated with the South Platte River alluvial aquifer (i.e., uppermost aquifer). The only structures on adjacent lands with the potential to be affected by the mining operation are five (5) wells that were identified within 600 feet of the permit boundary using on the Colorado Division of Water Resources (DWR) Colorado's Decision Support System (CDSS) Well Permit Viewer. The location of the wells is shown on Exhibit C. The following table summarizes construction details for each of the wells. 3 ¢ IIs j ��►� Auk �# ° J fP.rnt> �yyy��. •:%,i g ^4 !^ ≤ � � A rk S� ' 'a,4 k . * � Monitoring / Alluvial Sorin Natural Resources Cross -gradient / 55498-MH 12 feet Sampling (Unnamed Aquifer) Partners LLC Up -gradient Monitoring / Alluvial Sorin Natural Resources Cross -gradient / 55499-MH 12 feet Sampling (Unnamed Aquifer) Partners LLC Up -gradient Irrigation Alluvial Cross -gradient / 283674 21 feet Romero, Heidi & Juan Stock (Unnamed Aquifer) Up -gradient `Alluvial Cross -gradient / 299707 Domestic 40 feet Martin (Unnamed Aquifer)Hernandez,Up-gradient Alluvial 103102 Domestic 30 feet Gurney, Norman Up -gradient (Unnamed Aquifer) All five (5) wells are completed within the alluvial aquifer (i.e., unnamed aquifer) and uses include monitoring/sampling, irrigation stock, and domestic. Given the up -gradient and/or cross -gradient location of all five (5) wells relative to any mining block being mined at the time and the high transmissivity of water flow through the alluvial aquifer, it is not anticipated that mining operations at the Site will adversely affect any of these wells. Mine process water, which includes groundwater from the dewatering operations and stormwater (precipitation and surface runoff), that collects in the mine pit will be directed into a settling basin within the pit to allow fine sediments to settle out before being pumped for discharge to the South Platte River. ASCI will maintain a topography at the Site during mining and reclamation operations to direct stormwater runoff from disturbed areas, piled material, and operating surfaces that is not collected in the mine pit to area(s) within the permit boundary where the water can percolate into the ground. Stormwater runoff that is not comingled with mine process water within the pit will not be discharged off -site or allowed to leave the permitted area. ASCI has applied for a National Pollutant Discharge Elimination System (NPDES) permit from the Colorado Department of Public Health and Environment (CDPHE) — Water Quality Control Division (WQCD). ASCI has submitted permit applications for a Gravel Pit Well Permit and Substitute Water Supply Plan (SWSP) approval with the Colorado DWR. For 2022, the estimated project water requirements will be 16.65 acre-feet (i.e., net water depletions). SWSPs will be submitted annually to DWR for approval to refine the estimated project water requirements each year based upon the anticipated site conditions as mining and/or reclamation progresses. ASCI has entered into Water Supply Agreements (WSAs) with the City of Longmont (Longmont) and the City of Aurora (Aurora) to supply the project water requirements (i.e., replacement water for out -of -priority depletions) in 2022. ASCI will continue to utilize long standing relationships with Longmont and Aurora to supply the project water requirements throughout mining and reclamation of the mine. EXHIBIT H — Wildlife Information LEGEND United States Fish and Wildlife Service - USFWS Colorado Parks and Wildlife - CPW Asphalt Specialties Co., Inc. — ASCI Stiles Mining Resource — SMR State Endangered — SE Federal Endangered - FE State Threatened — ST Federal Threatened - FT Migratory Bird Treaty Act - MBTA DESCRIPTION - The Stiles Mining Resource (SMR) ±158 -acre area is in the South Platte River Valley in portions of Section 35 and 36, Township 5 North, Range 66 West, Weld County, Colorado. Please refer to Exhibit B — Index Map. Wildlife habitat types in or near the Stiles Mining Resource area is a primarily comprised of cultivated cropland/pasture which is degraded from a wildlife perspective by historic land use practices. The northeast corner of the property adjoins a high bank of the South Platte River with the property corner falling about ten (10) feet out in the south channel. Approximately two thirds of the area is in South Platte floodway with remainder of the property located in the flood plain. The area to be mined is currently vacant and unused but was most recently used for livestock pasture that was over -grazed. The grazing tended to keep the vegetation short minimizing cover for wildlife and allowed weeds to increase in the area. SEASONAL USE AND COMMON SPECIES IN THE AREA Examples of mammal species expected in the vicinity that may use the degraded cropland/pasture but not observed include the mule deer (Odocoileus hemionus), red fox (Vulpes vulpes), striped skunk (Mephitis mephitis), raccoon (Procyon lotor), coyote (Canis latrans), porcupine (Erethizon dorsatum), deer mouse (Peromyscus maniculatus) and Nuttall's cottontail (Sylvilagus nuttallii). The area is suitable for species that prefer sparse cover, such as western meadow lark, (Stumeila neglecta). While not observed directly, fresh diggings from pocket gophers were observed in the area. The species maybe the plains pocket gopher (Geomys bursarius). The adjoining properties habitat and adjacent riparian corridor includes Western Great Plains Riparian Woodland, shrubland, and herbaceous vegetation communities that provide wildlife values in the South Platte River. .Large cottonwood trees (Populus deltoides) are present in the riparian corridor and provide potential nesting habitat for hawks, owls, and tree nesting songbirds. No raptor nests were observed in these trees during the spring, 2021. During this time, leaves were just starting to emerge and would have allowed the observation of raptor nests. These trees do provide nesting habitat for species such as American robin (Turdus migratorius) and mourning dove (Zenaida macroura). Many species of bats may pass through the area and could utilize cottonwood trees for temporary roosting habitat. PRESENCE AND ESTIMATED POPULATION OF THREATENED AND ENDANGERED SPECIES The Stiles Mining Resource ±158 -acre area was reviewed for Federal and State Listed Threatened and Endangered Species which describes the wildlife habitat present on the site and the common species that may be found in the area. The review indicates that no federally or state listed threatened or endangered species are expected to occur at the property. The following wildlife information is submitted specifically for the Stiles Mining Resource area general wildlife habitat. H:\Pits HBP PIsnts\EVANS\Stiies Mining Resource\Exh H Wiidiie\EXHIBIT H Wildlife Information DRAFT.docx These species are not found and do not live within range of the Stiles Mining Resource Area. The following listed federal and state threatened and endangered species are identified to occur within Colorado. Common Name Scientific Name Status Boreal toad Bufo boreas boreas State Endangered (SE) Gunnison Sage Grouse Centrocercus minim us Federal Threatened (FT) Least Tern Sterna antillarum SE Lesser prairie -chicken Tympanuchus pallidicinctus State Threatened (ST) Mexican Spotted Owl Strix occidentalis lucida FT, ST Plains Sharp Tail Grouse Tympanuchus phasianellus jamesii SE Southwestern willow flycatcher Empidonax trail/ii extimus Federal Endangered (FE), SE Whooping Crane Grus americana FE, SE Arkansas darter Etheostoma cragini ST Bonytail Gila elegans FE, SE Brassy minnow Hybognathus hankinsoni ST Colorado pikeminnow Ptychocheilus lucius FE, ST Common shiner Luxilus cornutus ST Greenback cutthroat trout Oncorhynchus clarki stomias FT, ST Humpback chub Gila cypha FE, ST Lake chub Couesius plumbeus SE Northern redbelly dace Phoxinus eos SE Plains minnow Hybognathus placitus SE Razorback sucker Xyrauchen texanus FE, SE Rio Grande sucker Catostomus plebeius SE Southern redbelly dace Phoxinus erythrogaster SE Suckermouth minnow Phenacobius mirabilis SE Black -footed ferret Mustela nigripes FE, SE Gray wolf Canis lupus SE Grizzly bear Ursus arctos FT, SE Kit fox Vulpes macrotis SE Lynx Lynx canadensis FT, SE Wolverine Gulo SE The Stiles Mining Resource Area does not contain the specific habitat characteristics necessary to support any of the species listed above. The species are not likely to occur within the Stiles Mining Resource Area and therefore, the proposed project or any future land use changes would not likely adversely affect the continued existence or available habitat of the species. Wildlife may be impacted in South Platte River system due to water depletions or decreased water quality in the Platte River system. Wildlife impacts associated with reduced water flow may affect H:\PRs HBP Plants\EVANS\Stiles Mining Resouece\Exh H WiidIHe\EXHIBIT H Wildlife Infonnatlon DRAFT.docx some species and/or critical habitat in other reaches of the river. The Stiles Mining Resource area does not contain the specific habitat characteristics necessary to support the species affected by water depletions to the South Platte River. Species Potentially within Range of the Stiles Mining Resource Area The following federal and state listed threatened and endangered species are identified to occur or historically occur within Weld County. The Stiles Mining Resource Area is located within the potential known range for these species. Further review was conducted to determine if the species or habitat has the potential to exist on the Stiles Mining Resource Area considering Stiles Miring Resource Area area -specific conditions and characteristics. A brief explanation is provided as to the species life cycle, habitat requirements and potential occurrence on the Stiles Mining Resource Area. mmon Name Scientific Name tatus Black -footed Ferret Mustela nigripes Federal Endangered State Endangered Burrowing owl Athene cunicularia State Threatened Piping Plover Charadrius melodus circumcintus Federal Threatened State Threatened Preble's Meadow Jumping Mouse Zapus hudsonius preblei Federal Threatened State Threatened River otter Lontra canadensis State Threatened Black -Footed Ferret (MUSTELA NIGRIPES) - The black -footed ferret (BFF) (Mustela nigripes) is a medium-sized mustelid (a member of the weasel family). The BFF is the only ferret species native to the Americas. Its historical range spanned much of western North America's intermountain and prairie grasslands, extending from Canada to Mexico. Historically, BFF habitat coincided with habitats of black -tailed prairie dog (C. ludoviclanus), Gunnison's prairie dog (C. gunnisoni), and white-tailed prairie dog (C. leucurus). Prairie dogs make up more than 90% of the BFF's diet. BFF's are limited to open habitat, the same habitat used by prairie dogs: grasslands, steppe, and shrub steppe. Ferrets prey on prairie dogs and utilize their burrows for shelter and denning. It is estimated that BFF require about 99-150 acres prairie dog colony to support one ferret. No BFF individuals have been observed on or surrounding the Stiles Mining Resource Area. No black -tailed prairie dog colonies have been observed on site. According to the USFWS and the CPW maps, the Stiles Mining Resource Area is located within the Block Clearance Area for BFF. The Block Clearance area means that land within no longer contains any wild free ranging black -footed ferrets and that activities within these areas that result in the removal of black tailed prairie dogs and/or their habitat will no longer be required to meet the USFWS Area guidelines for black -footed ferrets. The proposed project and any future land use changes within the Stiles Mining Resource Area should not adversely affect the continued existence or potential habitat of this species. Burrowing Owl (Athene cunicularia) - The burrowing owl (owl) is listed as a state threatened species in Colorado. The owl is small (length of ten inches), long-legged, boldly spotted, and barred with brown and white. The owl isa breeding species across the plains of eastern Colorado however rarely winters in the state. Nesting habitat is abandoned burrows, especially prairie dog colonies, located in grasslands, mountain parks, well -drained steppes, deserts, prairies, and agricultural lands from late March through October. The owl can usually be observed on low perches such as H:\Pits HBP PlantAEVANS\Stlles Mining Resource\Exh H Wlldlle\EXHIBIT H Wildlife Information DRAFT.docx fence posts, dirt mounds or the ground. Clutch size of this owl averages six to seven and incubation lasts up to 30 days. The owlets usually run and forage at 4 weeks and fly at 6 weeks. Primary threats to existence of this species are habitat loss due to intensive agriculture, habitat degradation and fragmentation due to control of burrowing mammals and predation by cats and dogs. No owl individuals were observed on or surrounding the Stiles Mining Resource Area. The Stiles Mining Resource Area is located within the overall range of the black tailed prairie dog; however, no active colonies were observed on the Stiles Mining Resource Area. The Stiles Mining Resource Area is subject to human disturbance limiting the potential use of the Stiles Mining Resource Area by this species. The proposed project and any future land use changes within the Stiles Mining Resource Area should not adversely affect the continued existence or potential habitat of this species. Piping Plover (Charadrius melodus circumcintus) - Plovers belong to a group of birds commonly referred to as shorebirds. Most members of this group are normally found inhabiting beaches, lake shores, marshes, and other wetland areas. The piping plover is one of three small plovers that can be found in Colorado. About 7.25 inches in length, this plover is often described as being the color of dry beach sand, a pale gray brown. In Colorado, piping plovers can be found during migration (first part of April and most have passed through by the end of May), but a few call the South Platte home for the summer months. They can be found in the eastern part of the state. Nesting habitat in Colorado is on sandy lakeshore beaches, sandbars within riverbeds or even sandy wetland pastures. An important aspect of this habitat is that of sparse vegetation. The plover depends on its coloration for camouflage and protection. Human recreational activities at reservoirs, such as beach camping and off -road vehicle use, can impact piping plovers and their nesting and brood rearing. No Piping Plovers individuals were observed on or surrounding the Stiles Mining Resource Area. The Stiles Mining Resource Area does not contain the specific habitat characteristics necessary to support this species. The species is not likely to occur within the Stiles Mining Resource Area and therefore, the proposed project or any future land use changes would not likely adversely affect the continued existence or available habitat of the Piping Plover. Preble's Meadow Jumping Mouse (Zapus Hudsonius Preblei) The Preble's meadow jumping mouse (PMJM) is listed a Federal threatened and state threatened species. PMJM range extends from southwestern Wyomingthrough eastern Colorado generally below 7,600 feet. Typical PMJM habitats Is well -developed plains riparian vegetation with undisturbed grassland and a water source in proximity. PMJM prefers dense herbaceous vegetation consisting of a variety of grasses, forbs, and thick shrubs. This species is known to regularly travel into adjacent uplands to feed and hibernate. The PMJM hibernates in an underground burrow from September to May. PMJM bears two to three litters per year, averaging five young per litter, in a grass lined nest. The Stiles Mining Resource does not provide suitable habitat for the PMJM. The area is comprised of cultivated cropland (mowed)/ruderal herbaceous vegetation thus does not provide habitat suitable for this species. No populations of the PMJM are known to occur within the vicinity of the area. Further, the area is not designated as Critical Mouse Habitat and no critical habitat unites occur in Weld County as designated by the USFWS and CPW. The nearest known critical habitat occurs in Larimer County, west of Loveland. The SMR northern mine buffer will be maintained between the mine excavation, the adjoining property owners and the South Platte River which will preserve riparian corridor adjacent to the river. The proposed project and any H:\PRs HOP Plants\EVANS\Stiks Mining Resource\Exh H Wildlife\EXHIBIT H Wildlife Information DRAPT.docx future land use changes on the Stiles Mining Resource Area are not likely to adversely affect the continued existence or available habitat of the Preble's Meadow Jumping Mouse. RIVER OTTER (LONTRA CANADENSIS) - The river otter is listed as a state threatened species in Colorado. River otters vary in length from 26-42 inches, with males larger than females. Their long - tapered tails make up about one-third of their length. River otters historically ranged throughout most of the United States and Canada but were eliminated from much of their range in the west. Reintroductions of otter to Colorado began in 1976, and they are now found in small numbers throughout most of western Colorado with a more scattered distribution in eastern Colorado. River otters inhabit many aquatic habitats, but they are most likely to occupy beaver ponds, stream channels, and warm water sloughs exhibiting healthy riparian vegetation, woody debris, and log jams. No river otter individuals were observed on or surrounding the Stiles Mining Resource Area. River otter populations are listed as known to occur in Weld County. However, individuals and populations are still rare occurrences within the front range and eastern plains. Further, preferred habitat is usually associated with beaver activity and structures which do not exist within or near the Stiles Mining Resource Area. The proposed project and any future land use changes on the Stiles Mining Resource Area are not likely to adversely affect the continued existence or available habitat of the River Otter. MIGRATORY BIRD TREATY ACT - It has been determined that some migratory birds may utilize the Stiles Mining Resource Area. These birds are protected under the Migratory Bird Treaty Act (MBTA) and killing, or possession of these birds is prohibited. The active nesting season for most migratory birds in this region of Colorado occurs sometime between April 1 and August 31. Migratory birds are utilizing the Stiles Mining Resource site. The mature overstory cottonwood trees and Shrubland and Herbaceous vegetation community on the adjoining property to the Stiles Mining Resource property provides potential habitat for migratory birds. Several migratory birds were observed at the Stiles Mining Resource Area, including mourning dove, American robin (Turdus migratorius), great blue heron (Ardea herodias), mallards, western meadowlark, red -winged blackbird, black -capped chickadee (Poecile atricapillus), northern flicker (Colaptes auratus), Say's phoebe (Sayornis soya), American Goldfinch (Spinus tristis) and chipping sparrow (Spizella passerina). Any future land use changes that occur on Stiles Mining Resource Area that remove vegetation during the active nesting season shall ensure that active nests are not disturbed. CPW recommends that active migratory bird nest protected under the MBTA be left undisturbed until the juvenile bird have fledged or until the nest is no longer in use. The MBTA does not restrict disturbances to inactive nests or the surrounding habitat. Any active raptor nest sites are further protected by the MBTA and CPW. The CPW has established recommended buffer zones and seasonal activity restrictions for a variety of Colorado raptors. No active raptor nest was observed in or just outside of the SMR area. A bald eagle (Haliaeetus leucocephalus) was observed flying west along the South Platte riparian corridor. A Swainson's hawks (Buteo swainsoni) was seen hunting in the middle portion of the mine resource area. A Ferruginous hawk (Buteo regalis) was observed perched on a power pole to the south of the property. The bald eagle, Ferruginous hawk and Swainson's hawks were not observed H:\Pits HP Plants\EVANS\Stlles Mining Resource\Exh H Wlldlife\EXHIBIT H Wildlife Information DRAFT.docx in or near any of the raptor nest site. No Bald or Golden Eagles are known to nest or roost in or near the area. No CPW mapped buffer zones are located within the SMR project area. General Effects Mine construction and subsequent mining activities could displace individual wildlife. Similar habitat is in the vicinity, but the area already has considerable human activity with City of Evans to the North and the Town of La Salle to East and scattered residences with farms in all directions. State Highway 85 is two miles northeast of the permit boundary and traffic is audible from the highway. Inspection of the SMR area, ASCI has determined that some migratory birds may utilize the SMR area. These birds are protected under the MBTA and killing, or possession of these birds is prohibited. Generally, the active nesting season for most migratory birds in this region of Colorado occurs between April 1 and August 31. Any future land use changes that occur on the SMR area to remove vegetation during the active nesting season shall first ensure that active nests are not disturbed. Raptor nest sites are further protected by the CPW. The CPW has established recommended buffer zones and seasonal activity restrictions for a variety of Colorado raptors. No active raptor nests were observed and no CPW mapped buffer zones are located within the SMR area. Any future project which may be water related or determined to be a water depletion to the South Platte River Basin may be considered an adverse effect to water depletion species. The SMR area does not contain the specific habitat characteristics necessary to support the species affected by water depletions to the South Platte River. The species do not occur within the survey area therefore the proposed project and any future land use change will not directly and adversely affect the continued existence of available habitat for the species. It is assumed herein that proper augmentation plans are in place and the project will not result in a water depletion and therefore not be considered an adverse effect to these species. Upon review of species identified as State endangered or threatened, protected by the CPW under Colorado Statute, no species are potentially present within the Stiles Mining Resource area. No individuals or habitat for federal or state listed threatened and endangered species would be impacted by any future land use changes. H:\Plts HBP PIents\EVANS`Stlles Mining Resourae\Exh H WIWIIf. EXHIBITH Wildlife information DRAFT.docx Exhibit I - Soils Information According to the Soil Survey of Weld County, Colorado, Southern Part, (United States Department of Agriculture, Natural Resource Conservation Service, Web Soil Survey 2.0, National Cooperative Soil Survey), there are two major soil types within the project area: 1. Aquolls and Aquents, gravelly substratum 2. Ellicott — Ellicott sandy Site boring for the produced sand with gravel, brown, fine to medium grained sand and no odor. The water table was encountered at an average depth of 5 ft below the site ground surface. Topsoil and overburden average depth for the Stiles Mining Resource is ±3.5 ft. The location of these soil types relative to the project area is illustrated on the attached Natural Resources Conservation Service map and legend. Detailed descriptions of each NRCS soil type are below. Man Unit: 3-Aauolls and Aguents. eravelly substratum Man Unit: 10- Ellicott -Ellicott sandy- skeletal complex. 0 to 3 percent slopes. rarely flooded See attached NRCS report for the permit boundary area. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh I Soils Informatin\Exh I NRCS Soils Info.docx USDA United States Department of Agriculture Natural Resources Conservation Service Compiled August 27, 2021 A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Calarado, Southern Part Stiles Mining Resource H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh I Soils Informatin\Exh I NRCS Soils Info.docx Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide informationabout the properties of the soils in the survey areas. Soil surveys are designed formany different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may imposespecial restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects ofsoil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider areaplanning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center(https://offices.sc,egov,usda.gov/locator/app?agency=nres) or your NRCS State SoilScientist (http://www.nres.usda.govtwps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils areseasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high- water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including theAgricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is availablethrough the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA Is an equal opportunityprovider and employer. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh I Soils lnformatin\Exh I NRCS Soils Info.docx Contents Preface............................................................................................................................... 2 HowSoil Surveys Are Made......................................................................................... 5 SoilMap............................................................................................................................. 7 SoilMap.......................................................................................................................... 8 Legend............................................................................................................................ 9 MapUnit Legend..........................................................................................................10 MapUnit Descriptions.................................................................................................10 Weld County, Colorado, Southern Part ................................................................13 3—Aquolls and Aquents, gravelly substratum.................................................13 10 —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarelyflooded.................................................................................................14 85—Water.............................................................................................................16 SoilInformation for All Uses......................................................................................17 Suitability and Limitations for Use.............................................................................17 ConstructionMaterials............................................................................................17 TopsoilSource.....................................................................................................17 GravelSource...................................................................................................... 22 TopsoilSource ..................................................................................................... 27 EcologicalSites............................................................................................................ 33 AllEcological Sites.................................................................................................. 33 Map —Dominant Ecological Site........................................................................ 34 Legend —Dominant Ecological Site.................................................................. 35 Table —Ecological Sites by Map Unit Component..........................................36 SoilReports.................................................................................................................. 37 Soil Qualities and Features.................................................................................... 37 SoilFeatures........................................................................................................ 37 References...................................................................................................................... 40 [Type here] How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomicciassification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so thatthey could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into Iandforms or Iandform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and Iandform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high-water table within certain depths in most years, but they cannot predict that a high-water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. t: Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 7 Custom S jource Report Aap in a a d °v ^' o 522100 571200 92300 ff'724O0 a' 00 S' 00 522700 522800 522900 523000 523100 523200 523300 523400 523&)0 40° 21'23N 40°21'23N nh .Y{ST 8 4• ♦ t V -. ---_ __ - • 1. n.• .. ...• q•. ♦... _'.. . ll t- e v. T II- H w if '1 r J Scn Map(ma . 40"20'53"N:> --s,. _^-..I __.::- _ _ _—.' --- - -- __.1 400 2053'N 522200 522300 522400 522500 522600 522700 5122800 522900 523000 523100 523200 523300 523400 523500 MapScale:1:6,480ifprintedonAlandsape(11"x8.5")sheet o Meters N 0 50 100 200 300 4 —. Feet V\ 0 300 600 1200 1800 Map projection: WebMencator Comer coordinates: WGS84 Edge tics: UTM Zone 13N WG584 8 Custom S source Report MAP INFORMATION Area of Interest (AOI) Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest (A0I) 1:24,000.Stony Spot Soils Very Stony Spot Soil Map Unit Polygons " Warning: Soil Map may not be valid at this scale. Wet Spot +� Soil Map Unit Lines t, Other Enlargement of maps beyond the scale of mapping can cause U Soil Map Unit Points misunderstanding of the detail of mapping Aping and accuracy of soil Special Point Features e- Special Line Features line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed Blowout Water Features scale. Borrow Pit Streams and Canals Clay Spot Transportation Please rely on the bar scale on each map sheet for map 0 Closed Depression 4-" Rails measurements. 44 Gravel Pit Interstate Highways Source of Map: Natural Resources Conservation Service Gravelly Spot US Routes Web Soil Survey URL: Landfill Major Roads Coordinate System: Web Mercator (EPSG:3857) • Lava Flow Local Roads Maps from the Web Soil Survey are based on the Web Mercator Marsh or swamp Background projection, which preserves direction and shape but distorts C. distance and area. A projection that preserves area, such as the Mine or Quarry Aerial Photography Albers equal-area conic projection, should be used if more Miscellaneous Water accurate calculations of distance or area are required. Perennial Water This product is generated from the USDA-NRCS certified data as Rock Outcrop of the version date(s) listed below. .¢. Saline Spot Soil Survey Area: Weld County, Colorado, Southern Part 00 o Sandy Spot Survey Area Data: Version 19, Jun 5, 2020 Severely Eroded Spot Soil map units are labeled (as space allows) for map scales Sinkhole 1:50,000 or larger. .. ^.. Slide or Slip Date(s) aerial images were photographed: Jul 19, 2018 —Aug Sodic Spot 10 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. E Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI, Percent of AM1. 3 Aquolls and Aquents, gravelly substratum 141.0 90.4% 10 Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded 14.8 9.5% 85 Water 0.2 0.1% Totals for Area of Interest 156.0 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or moremajor kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is madeup of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in themap unit, and thus they do not affect use and management. These are called non -contrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have propertiesand behavioral characteristics divergent enough to affect use or to require differentmanagement. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineatepure taxonomic classes but rather to separate the landscape into landforms or iL7 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however,onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except fordifferences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phasecommonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas.These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similarin all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of presentor anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be madeup of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soilmaterial and support little or no vegetation. Rock outcrop is an example. 11 Custom Soil Resource Report Weld County, Colorado, Southern Part 3—Aquolls and Aquents, gravelly substratum Map Unit Setting National map unit symbol: 3627 Elevation: 4,000 to 7,200 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 45 to 55 degrees F Frost -free period 80 to 155 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquois and similar soils: 55 percent Aquents, gravelly substratum, and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform:Streams, flood plains, swales Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 48 inches: loam H2 - 48 to 60 inches: gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Low , Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 in/hr) Depth to water table: About 6 to 48 inches Frequency of flooding: Frequent None Frequency of ponding: None Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Description of Aquents, Gravelly Substratum Setting Landform: Stream terraces Down -slope shape: Linear 12 Custom Soil Resource Report Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 48 inches: variable H2 - 48 to 60 inches: very gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to very high (0.57 to 19.98 in/hr) Depth to water table: About 6 to 24 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 6.6 inches) interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Minor Components Bankard Percent of map unit: 10 percent Hydric soil rating: No Ustic torrifiuvents Percent of map unit: 5 percent Hydric soil rating: No 1O —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded Map Unit Setting National map unit symbol: 2xsth Elevation: 3,950 to 5,960 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost -free period: 135 to 165 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 13 Custom Soil Resource Report Map Unit Composition Ellicott, rarely flooded, and similar soils: 65 percent Ellicott sandy -skeletal, rarely flooded, and similar soils: 25 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ellicott, Rarely Flooded Setting Landform: Flood plains on intermittent streams, drainageways Down -slope shape: Linear Across -slope shape: Concave Parent material: Noncalcareous, stratified sandy alluvium Typical profile A - 0 to 4 inches: sand AC -4 to 13 inches: sand C1 - 13 to 30 inches: sand C2 - 30 to 44 inches: sand C3 - 44 to 80 inches: coarse sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity. Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Very low (about 2.1 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 7s Hydrologic Soil Group: A Ecological site: R067BY031 CO - Sandy Bottomland Hydric soil rating: No Description of Ellicott Sandy -skeletal, Rarely Flooded Setting Landform: Channels on intermittent streams, channels on drainageways Down -slope shape: Linear Across -slope shape: Concave, linear Parent material: Noncalcareous, stratified sandy alluvium Typical profile A -0 to 4 inches: very gravelly coarse sand AC -4 to 13 inches: very gravelly sand C1 - 13 to 30 inches: very gravelly sand C2 - 30 to 44 inches: very gravelly sand C3 - 44 to 80 inches: very gravelly coarse sand 14 Custom Soil Resource Report Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Very low (about 1.2 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 8s Hydrologic Soil Group: A Ecological site: R067BY031 CO - Sandy Bottomland Hydric soil rating: No Minor Components Haverson Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY036CO - Overflow Hydric soil rating: No 85 —Water Map Unit Composition Water: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Minor Components Aquolls Percent of map unit: 5 percent Landform: Marshes Hydric soil rating: Yes 15 Soil Information for All Uses Suitability and Limitations for Use The Suitability and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Construction Materials Construction materials interpretations are tools designed to provide guidance to users in selecting a site for potential source of various materials. Individual soils or groups of soils may be selected as a potential source because they are close at hand, are the only source available, or they meet some or all the physical or chemical properties required for the intended application. Example interpretations include road fill, sand and gravel, topsoil and reclamation material. Topsoil Source Topsoil is used to cover an area so that vegetation can be established and maintained. The surface layer of most soils is generally preferred for topsoil because of its content of organic matter. Organic matter greatly increases the absorption and retention of moisture and nutrients for plant growth. The upper 40 inches of a soil is evaluated for use as topsoil. Also evaluated is the reclamation potential of the borrow area. Normal compaction, minor processing, and other standard construction practices are assumed. The soils are rated "good," "fair," or "poor" as potential sources of topsoil. The ratings are based on the soil properties that affect plant growth; the ease of excavating, loading, and spreading the material; and reclamation of the borrow area. Toxic substances, soil reaction, and the properties that are inferred from soil texture, such as available water capacity and fertility, affect plant growth. The ease of excavating, loading, and spreading is affected by rock fragments, slope, depth to a water table, soil texture, and thickness of suitable material. Reclamation of the borrow area is affected by slope, depth to a water table, rock fragments, depth to bedrock or a cemented pan, and toxic material. 16 Custom Soil Resource Report Numerical ratings between 0.00 and 0.99 are given after the specified features. These numbers indicate the degree to which the features limit the soils as sources of topsoil. The lower the number, the greater the limitation. The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 17 406 21N Custom SI jource Report Map— oil Source 0 522700 522800 522900 523000 523100 523200 523,3 523400 523500 . a r• -''^� ;,... 40 2i 23"N - -.� - t 1 1 _. .p ��cc •k )1 • L`.4 cl 5 • ,.. L _ _-____- ".:ti , -�,y 4 - • ; .1 ' Syr _��' •' • •1r- L4+ _ .. d• T 1 1� ♦ �n /. �• .. + iy ' . /� �Y!�{� �j�• •.669 `•\/' !•' LY A I••I.. ..._. .._.._ _ _..-_' 40°20N 522200 522300 522400 522500 522600 522700 522800 522900 523000 523100 523200 523300 523400 523500 "a 3 MapScale: 1:6,480 if printed on A lanciscape(I. I"x 8.5") sheet = Meters N 0 50 100 200 300 •. Feet A 0 300 600 1200 1800 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 18 Custom Sc ;ource Report MAP LEGEND Area of Interest (AOI) Background Area of Interest (AOI) Aerial Photography Soils Soil Rating Polygons Poor 0 Fair Good Not rated or not available Soil Rating Lines I Poor n a Fair Good o e Not rated or not available Soil Rating Points The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) i Poor Maps from the Web Soil Survey are based on the Web Mercator O Fair projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the :1 Good Albers equal-area conic projection, should be used if more ® Not rated or not available accurate calculations of distance or area are required. Water Features Streams and Canals Transportation p.p.� Rails Interstate Highways US Routes Major Roads Local Roads This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 -Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. iE Custom Soil Resource Report Map unit . Mapuniit name Rating Component Rating i'eas.ons . Acres in X01 Per ertt of""i4 9 x$yrr of nannscent) (numeric values) 3 Aquolls and Fair Aquolls (55%) Wetness (0.76) 141.0 90.4% Aquents, gravelly substratum Hard to reclaim (rock fragments) (0.93) Rock fragments (0.97) Exchange capacity (0.99) 10 Ellicott -Ellicott Poor Ellicott, rarely Too sandy (0.00) 14.8 9.5% sandy -skeletal complex, 0 to 3 percent slopes, flooded (65%) Exchange capacity (0.22) Ellicott sandy- Rock fragments rarely flooded skeletal, rarely (0.00) flooded (25%) Too sandy (0.00) Hard to reclaim (rock fragments) (0.01) Exchange capacity (0.13) 85 Water Not rated Water (95%) 0.2 0.1% Aquolls (5%) Totals far Area of Interest 156.0 100.0% ��a1h %Aetes in QI 4 ex a o A1 Fair 141.0 90.4% Poor 14.8 9.5% Null or Not Rated 0.2 0.1% Totals for Area of Interest 156.0 100.0% Aggregation Method. Dominant Condition Aggregation is the process by which a set of component attribute values is reduced to a single value that represents the map unit as a whole. A map unit is typically composed of one or more "components". A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. For the attribute being aggregated, the first step of the aggregation process is to derive one attribute 20 Custom Soil Resource Report value for each of a map unit's components. From this set of component attributes, the next step of the aggregation process derives a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic map for soil map units can be rendered. Aggregation must be done because, on any soil map, map units are delineated but components are not. For each of a map unit's components, a corresponding percent composition is recorded. A percent composition of 60 indicates that the corresponding component typically makes up approximately 60% of the map unit. Percent composition is a critical factor in some, but not all, aggregation methods. The aggregation method "Dominant Condition" first groups like attribute values for the components in a map unit. For each group, percent composition is set to the sum of the percent composition of all components participating in that group. These groups now represent "conditions" rather than components. The attribute value associated with the group with the highest cumulative percent composition is returned. If more than one group shares the highest cumulative percent composition, the corresponding"tie-break" rule determines which value should be returned. The "tie -break" rule indicates whether the lower or higher group value should be returned in the case of a percent composition tie. The result returned by this aggregation method represents the dominant condition throughout the map unit only when no tie has occurred. Component Percent Cutoff.' None Specified Components whose percent composition is below the cutoff value will not be considered. If no cutoff value is specified, all components in the database will be considered. The data for some contrasting soils of minor extent may not be in the database, and therefore are not considered. Tie -break Rule: Lower The tie -break rule indicates which value should be selected from a set of multiple candidate values, or which value should be selected in the event of a percent composition tie. Gravel Source Gravel consists of natural aggregates (2 to 75 millimeters in diameter) suitable for commercial use with a minimum of processing. It is used in many kinds of construction. Specifications for each use vary widely. Only the probability of finding material in suitable quantity is evaluated. The suitability of the material for specific purposes is not evaluated, nor are factors that affect excavation of the material. The properties used to evaluate the soil as a source of gravel are gradation of grain sizes (as indicated by the Unified classification of the soil), the thickness of suitable material, and the content of rock fragments. If the bottom layer of the soil contains gravel, the soil is considered a likely source regardless of thickness. The assumption is that the gravel layer below the depth of observation exceeds the minimum thickness. The ratings are for the whole soil, from the surface to a depth of about 6 feet. Coarse fragments of soft bedrock, such as shale and siltstone, are not considered to be gravel. 21 Custom Soil Resource Report The soils are rated "good," "fair," or "poor" as potential sources of gravel. A rating of "good" or "fair" means that the source material is likely to be in or below the soil. The bottom layer and the thickest layer of the soils are assigned numerical ratings. These ratings indicate the likelihood that the layer is a source of gravel. The number 0.00 indicates that the layer is a poor source. The number 1.00 indicates that the layer is a good source. A number between 0.00 and 1.00 indicates the degree to which the layer is a likely source. The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 22 Custom Sc aurce Report Map— al Source Y/ 11 Y i11 / 11 /''11 Y •11 '111 Y 11 211 1 •1 Q •/ . ,1 { .A. V 'mss L. y f , 40° 20'53" N r•- - -: -.:.-- •"`t4:.] . - - ' - - - 522200 522300 522400 522500 522800 522700 522800 MapScale: •Meters N 0 50 100 200 300 AFeet 0 300 600 1200 1800 Map projection: Web Mercator Comeraoordfnates: WGS84 Edgeti s: UTM Zone 13N WGS84 23 .I 522900 523000 523100 / 523200 523300 Custom Sc ;ource Report MAP LEGEND Area of Interest (AOI) Background Area of Interest (AOI) Aerial Photography Soils Soil Rating Polygons 0 Poor 0 Fair 0 Good a Not rated or not available Soil Rating Lines s Poor a 0 Fair _ • Good a s Not rated or not available Soil Rating Points fl Poor ® Fair r1 Good ® Not rated or not available Water Features Streams and Canals Transportation t_+4 Rails Interstate Highways US Routes Major Roads Local Roads The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 -Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 24 Custom Soil Resource Report Tables —Gravel Source Map t;nit Map unIt'name , Rating Component .. Ratfng reasons . Acres In Aol Percent of Aol symbol name (percent) : (numeric 3 Aquolls and Poor Aquolls (55%) Bottom layer 141.0 90.4% Aquents, (0.00) gravelly substratum Thickest layer (0.00) Aquents, gravelly Thickest layer substratum (0.00) (30%) Bottom layer (0.00) 10 Ellicott -Ellicott Poor Ellicott, rarely Bottom layer 14.8 9.5% sandy -skeletal flooded (65%) (0.00) complex, 0 to 3 percent slopes, rarely flooded Thickest layer (0.00) Ellicott sandy- Bottom layer skeletal, rarely (0.00) flooded (25%) Thickest layer (0.00) Haverson (10%) Bottom layer (0.00) Thickest layer (0.00) 85 Water Not rated Water (95%) 0.2 0.1% Aquolls (5%) Totals for Area of Interest 156.0 100.0% _y e 12tm !$cry in Perce t of AOJ Poor 155.9 99.9% Null or Noel Rated 0.2 0.1% Totals for Area of Interest 156.0 100.0% Rating Options —Gravel Source Aggregation Method: Dominant Condition Aggregation is the process by which a set of component attribute values is reduced to a single value that represents the map unit as a whole. A map unit is typically composed of one or more "components". A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. For the attribute being aggregateri, the first step of the aggregation process is to derive one attribute value for each of a map unit's components. From this set of component attributes, the next step of the aggregation process derives a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic 25 Custom Soil Resource Report map for soil map units can be rendered. Aggregation must be done because, on any soil map, map units are delineated but components are not. For each of a map unit's components, a corresponding percent composition is recorded. A percent composition of 60 indicates that the corresponding component typically makes up approximately 60% of the map unit. Percent composition is a critical factor in some, but not all, aggregation methods. The aggregation method "Dominant Condition" first groups like attribute values for the components in a map unit. For each group, percent composition is set to the sum of the percent composition of all components participating in that group. These groups now represent "conditions" rather than components. The attribute value associated with the group with the highest cumulative percent composition is returned. If more than one group shares the highest cumulative percent composition, the corresponding "tie -break" rule determines which value should be returned. The "tie -break" rule indicates whether the lower or higher group value should be returned in the case of a percent composition tie. The result returned by this aggregation method represents the dominant condition throughout the map unit only when no tie has occurred. Component Percent Cutoff: None Specified Components whose percent composition is below the cutoff value will not be considered. If no cutoff value is specified, all components in the database will be considered. The data for some contrasting soils of minor extent may not be ,in the database, and therefore are not considered. Tie -break Rule: Lower The tie -break rule indicates which value should be selected from a set of multiple candidate values, or which value should be selected in the event of a percent composition tie. Topsoil Source Topsoil is used to cover an area so that vegetation can be established and maintained. The surface layer of most soils is generally preferred for topsoil because of its content of organic matter. Organic matter greatly increases the absorption and retention of moisture and nutrients for plant growth. The upper 40 inches of a soil is evaluated for use as topsoil. Also evaluated is the reclamation potential of the borrow area. Normal compaction, minor processing, and other standard construction practices are assumed. The soils are rated "good," "fair," or "poor" as potential sources of topsoil. The ratings are based on the soil properties that affect plant growth; the ease of excavating, loading, and spreading the material; and reclamation of the borrow area. Toxic substances, soil reaction, and the properties that are inferred from soil texture, such as available water capacity and fertility, affect plant growth. The ease of excavating, loading, and spreading is affected by rock fragments, slope, depth to a water table, soil texture, and thickness of suitable material. Reclamation of the borrow area is affected by slope, depth to a water table, rock fragments, depth to bedrock or a cemented pan, and toxic material. 26 Custom Soil Resource Report Numerical ratings between 0.00 and 0.99 are given after the specified features. These numbers indicate the degree to which the features limit the soils as sources of topsoil. The lower the number, the greater the limitation. The map unit components listed for each map unit in the accompanying Summary by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as listed for the map unit. The percent composition of each component in a particular map unit is presented to help the user better understand the percentage of each map unit that has the rating presented. Other components with different ratings may be present in each map unit. The ratings for all components, regardless of the map unit aggregated rating, can be viewed by generating the equivalent report from the Soil Reports tab in Web Soil Survey or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. 27 Custom Sc ource Report Map— DI! Source j 40° 20'53"N -..w occaw oagw aaapj bL[OIRI b4 Ml 5'LL800 Map Scale:1:6,4801f printed on A iatdsmpe (11" x 8.5") sheet Meters N 0 50 100 200 300. 0 300 600 1200 1800et PM Map projection: Web Mercator Comercoordnates: WG584 Edgetics: UIM Zone 13N WGS84 28 522900 523000 523100 523200 523300 523400 523WO 40° 21'23"N I I 40° 20'53"N Custom S :source Report MAP LEGEND Area of Interest (AOI) Background Area of Interest (AOI) i Aerial Photography Soils Soil Rating Polygons 0 Poor 0 Fair I Good 0 Not rated or not available Soil Rating Lines le Poor 0 9 Fair 1 s Good 0 0 Not rated or not available Soil Rating Points O Poor ® Fair L.1 Good ® Not rated or not available Water Features Streams and Canals Transportation Interstate Highways US Routes Major Roads Local Roads 29 iii i'. tl '21.k1 i I. r 1 \ The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Mep »ialt Map unfit name Dating " . Component Ratite reasons Acres ln"AOI. Percent of AEI symbol name (percent) (pine v ii a ) 3 Aquolls and Fair Aquolls (55%) Wetness (0.76) 141.0 90.4% Aquents, gravelly substratum Hard to reclaim (rock fragments) (0.93) Rock fragments (0.97) Exchange capacity (0.99) 10 Ellicott -Ellicott Poor Ellicott, rarely Too sandy (0.00) 14.8 9.5% sandy -skeletal complex, 0 to 3 percent slopes, flooded (65%) Exchange capacity (0.22) Ellicott sandy- Rock fragments rarely flooded skeletal, rarely (0.00) flooded (25%) Too sandy (0.00) Hard to reclaim (rock fragments) (0.01) Exchange capacity (0.13) 85 Water Not rated Water (95%) 0.2 0.1% Aquolls (5%) Totals for Area of Interest 156.0 100.0% cre rte ell I rent ofA1j6 1 � Fair 141.0 90.4% Poor 14.8 9.5% Null or Not Rated 0.2 0.1% Totals for Area of Interest 156.0 100.0% Aggregation Method: Dominant Condition Aggregation is the process by which a set of component attribute values is reduced to a single value that represents the map unit as a whole. A map unit is typically composed of one or more "components". A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. For the attribute being aggregated, the first step of the aggregation process is to derive one attribute 30 Custom Soil Resource Report value for each of a map unit's components. From this set of component attributes, the next step of the aggregation process derives a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic map for soil map units can be rendered. Aggregation must be done because, on any soil map, map units are delineated but components are not. For each of a map unit's components, a corresponding percent composition is recorded. A percent composition of 60 indicates that the corresponding component typically makes up approximately 60% of the map unit. Percent composition is a critical factor in some, but not all, aggregation methods. The aggregation method "Dominant Condition" first groups like attribute values for the components in a map unit. For each group, percent composition is set to the sum of the percent composition of all components participating in that group. These groups now represent "conditions" rather than components. The attribute value associated with the group with the highest cumulative percent composition is returned. If more than one group shares the highest cumulative percent composition, the corresponding "tie -break" rule determines which value should be returned. The "tie -break" rule indicates whether the lower or higher group value should be returned in the case of a percent composition tie. The result returned by this aggregation method represents the dominant condition throughout the map unit only when no tie has occurred. Component Percent Cutoff. None Specked Components whose percent composition is below the cutoff value will not be considered. If no cutoff value is specified, all components in the database will be considered. The data for some contrasting soils of minor extent may not be in the database, and therefore are not considered. Tie -break Rule: Lower The tie -break rule indicates which value should be selected from a set of multiple candidate values, or which value should be selected in the event of a percent composition tie. 31 Custom Soil Resource Report Ecological Sites Individual soil map unit components can be correlated to a particular ecological site. The Ecological Site Assessment section includes ecological site descriptions, plant growth curves, state and transition models, and selected National Plants database information. All Ecological Sites — An "ecological site" is the product of all the environmental factors responsible for its development. It has characteristic soils that have developed over time; a characteristic hydrology, particularly infiltration and runoff, that has developed over time; and a characteristic plant community (kind and amount of vegetation). The vegetation, soils, and hydrology are all interrelated. Each is influenced by the others and influences the development of the others. For example, the hydrology of the site is influenced by development of the soil and plant community. The plant community on an ecological site is typified by an association of species that differs from that of other ecological sites in the kind and/or proportion of species or in total production. An ecological site name provides a general description of a particular ecological site. For example, "Loamy Upland" is the name of a rangeland ecological site. An "ecological site ID" is the symbol assigned to a particular ecological site. The map identifies the dominant ecological site for each map unit, aggregated by dominant condition. Other ecological sites may occur within each map unit. Each map unit typically consists of one or more components (soils and/or miscellaneous areas). Each soil component is associated with an ecological site. Miscellaneous areas, such as rock outcrop, sand dunes, and badlands, have little or no soil material and support little or no vegetation and therefore are not linked to an ecological site. The table below the map lists all of the ecological sites for each map unit component in your area of interest. 32 Custom S ource Report Map —Dorn Ecological Site t. j evo n 1i Z0.53 N Lcv.... . — v.awv 'I JLL/W JGLWV Map Scale: 1:6,480 if printed on A Iandscape (11" x 8.5") sheet. Meters N 0 50 100 200 300 Feet 0 300 600 1200 1800 fr Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: U1M Zone 13N WGS84 33 uzzauu JGJVUU 543100 523200 523300 523400 LtJ I 4V 20'53N Custom Si source Report Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons 0 R067BY031CO Q R067BY035CO Not rated or not available Soil Rating Lines R067BY031CO • y R067BY035CO e c Not rated or not available Soil Rating Points Li R067BY031CO ?1 R067BY035CO ® Not rated or not available Water Features Streams and Canals Transportation +44 Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 34 Stiles Mining Resource - Custom Soil Resource Report for Asphalt Specialties Co., Inc. Table —Ecological Sites by Map Unit Component Map unit symbol Map unit nama Component name Ecological $its Acres In AO1 Percent: of AO1 3 Aquolls and Aquolls (55%) R067BY035CO - 141.0 90.4% Aquents, gravelly Salt Meadow substratum Aquents, gravelly R067BY035CO — substratum (30%) Salt Meadow Bankard (10%) Ustic Tonifluvents (5%) 10 Ellicott -Ellicott Ellicott, rarely R067BY031CO— 14.8 9.5% sandy -skeletal flooded (65%) Sandy Bottomland pemelex, o to 3 percent slopes, rarely flooded Ellicott sandy- skeletal, rarely flooded (25%) R067BY031 CO — Sandy Bottomland Haverson (10%) R067BY036CO — Overflow 85 Water Water (95%) 0.2 0.1% Aquolls (5%) Totals for Area of Interest 156.0 100.0% 35 Stiles Mining Resource - Custom Soil Resource Report for Asphalt Specialties Co., Inc. Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitability and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Soil Qualities and Features This folder contains tabular reports that present various soil qualities and features. The reports (tables) include all selected map units and components for each map unit. Soil qualities are behavior and performance attributes that are not directly measured but are inferred from observations of dynamic conditions and from soil properties. Example soil qualities include natural drainage, and frost action. Soil features are attributes that are not directly part of the soil. Example soil features include slope and depth to restrictive layer. These features can greatly impact the use and management of the soil. Soil Features This table gives estimates of various soil features. The estimates are used in land use planning that involves engineering considerations. A restrictive layer is a nearly continuous layer that has one or more physical, chemical, or thermal properties that significantly impede the movement of water and air through the soil or that restrict roots or otherwise provide an unfavorable root environment. Examples are bedrock, cemented layers, dense layers, and frozen layers. The table indicates the hardness and thickness of the restrictive layer, both of which significantly affect the ease of excavation. Depth to top is the vertical distance from the soil surface to the upper boundary of the restrictive layer. Subsidence is the settlement of organic soils or of saturated mineral soils of very low density. Subsidence generally results from either desiccation and shrinkage, or oxidation of organic material, or both, following drainage. Subsidence takes place gradually, usually over a period of several years. The table shows the expected initial subsidence, which usually is a result of drainage, and total subsidence, which results from a combination of factors. Potential for frost action is the likelihood of upward or lateral expansion of the soil caused by the formation of segregated ice lenses (frost heave) and the subsequent collapse of the soil and loss of strength on thawing. Frost action occurs when moisture moves into the freezing zone of the soil. Temperature, texture, density, saturated hydraulic conductivity (Ksat), content of organic matter, and depth to the water table are the most important factors considered in evaluating the potential for frost action. It is assumed that the soil is not insulated by vegetation or snow and is not artificially drained. Silty and highly structured, clayey soils that have a high-water table in winter are the most susceptible to frost action. Well drained, very gravelly, 36 Stiles Mining Resource - Custom Soil Resource Report for Asphalt Specialties Co., Inc. or very sandy soils are the least susceptible. Frost heave and low soil strength during thawing cause damage to pavements and other rigid structures. Risk of corrosion pertains to potential soil -induced electrochemical or chemical action that corrodes or weakens uncoated steel or concrete. The rate of corrosion of uncoated steel is related to such factors as soil moisture, particle -size distribution, acidity, and electrical conductivity of the soil. The rate of corrosion of concrete is based mainly on the sulfate and sodium content, texture, moisture content, and acidity of the soil. Special site examination and design may be needed if the combination of factors results in a severe hazard of corrosion. The steel or concrete in installations that intersect soil boundaries or soil layers is more susceptible to corrosion than the steel or concrete in installations that are entirely within one kind of soil or within one soil layer. For uncoated steel, the risk of corrosion, expressed as low, moderate, or high, is based on soil drainage class, total acidity, electrical resistivity near field capacity, and electrical conductivity of the saturation extract. For concrete, the risk of corrosion also is expressed as low, moderate, or high. It is based on soil texture, acidity, and amount of sulfates in the saturation extract. 37 Custom Si source Report .aara lId00e ty, Colo do; Southern Part srnbolend , Restnet re t yr Subsdetce Pdtent a for frost ;.`Rak of corr sly ri soil name adtl'on, Kmd Depth to Thernesa "` Hardness tdal Totat "noosted steel n t Concrete e Low -RV- Range Low- Low - High High High .i, in 3—Aquolls and Aquents, gravelly substratum Aquolls — 0 Moderate High Low Aquents,,�gsavj91y1 '' g d h H�&1" ` �j y i—PT�1 C �6{1� $L�'tAsstttettd&m f t two: .'i' L x ` •r '." 4 h - , w 3 10 —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded Ellicott, rarely 0 0 Low Low Moderate flooded 1 to ttsandy- r Q 0 I cs�v, Moderate sk a l„rarely flooded ooded: 85 —Water Water — — References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nrcs.usdagovMpsIportalI nres/detail/national/soils/?cid=nres 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nresl42p2 g 77 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs .usda.govfwps/portal/nrcs/detail/national/soils/?cidnrcs142p2 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nresidetaigsoiis/ home/?cid=nres 142 p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portaUnres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 40 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430 -VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres 142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda_gov/wps/portal/nres/detaiUnational/soils/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www. nres.usda. gov/I nternet/FSE_DOCU M ENTS/nres l 42p2_052290.pdf 41 EXHIBITJ— VEGETATION INFORMATION The vegetation on the Stiles Mining Resource land consists of dryland pasture grass and weeds. Historically the Stiles Mining Resource area and the adjoining property were used for irrigated agricultural production. The previous landowners converted the irrigated farm to a dryland livestock operation that used livestock to graze the ruderal herbaceous vegetation (weeds). The Stiles Mining Resource property has not been grazed for several months and mowing has been initiated at the site. Near the mining area other property is comprised of irrigated farmland, residential home sites, agricultural land that was converted to a water recharge facility and pockets of cottonwood riparian area that is adjacent to the South Platte River. The adjoining properties includes the South Platte River riparian corridor and river, oil and gas production, county road, water recharge facility and agricultural land. Limited tree and shrub cover are present in this community. The pastures are comprised of smooth brome (Bromus inermis) and some western wheatgrass (Pascopyrum smithii), and various ruderal forb species such as Perennial Pepperweed (Lepidium latifolium), Field Bindweed (Convolvulus arvensis) and Showey Milkweed (Asclepias speciosa). Vegetative cover across these areas comprises 0-10% cover. The dominant weed on the property is Canada thistle (Cirsium arvense (L.) Scop) at this point. Other weeds in this vegetation community include cheatgrass (Bromus tectorum), kochia (Bassia scoparia), and Scotch thistle (Onopordum acanthium L.). Vegetative cover across these areas comprises 70-80% cover. The Stiles Mining Resource land is part of a highly modified flood plain that is disconnected from the South Platte River. The Stiles Mining Resource areas northwest corner is located ±950 ft from the South Platte River high bank and the northeast property corner falls just off the South Platte River high bank. About two thirds of the Stiles Mining Resource property is in the floodway with the balance in the floodplain. Substantial lengths of the South Platte River have been channelized to prevent further erosion. Since the existing Stiles Mining Resource floodplain/way is cut off from the river, most of the riparian area is located on the adjoining properties and is identified by a single generation of cottonwood trees. Flooding caused by a major rainfall event and/or extremely high spring river runoff will provide the riparian floodplains with the flood water overflows necessary to support native riparian vegetation and cottonwood regeneration. The upland grass and ruderal herbaceous vegetation communities across the Stiles Mining Resource area do not meet the criteria for wetland based on lack of hydrophytic vegetation. The existing weeds and undesirable vegetation are a concern on this property. Weeds are opportunistic and have occupied the former irrigated fields and dryland pastures. It is Asphalt Specialties plan to reclaim a healthy, functioning, and sustainable dryland native grass property. Due to the degree of past disturbance, rehabilitation will be accomplished by removing grazing, interplanting native grasses and forbs, and/or removing aggressive nonnative plants. Planting a prairie from scratch is a long-term project. Weed management and vegetation reclamation are an integrated component of this mining and reclamation project and overtime will achieve successful results. Asphalt Specialties has initiated a best weed management practice by initially mowing the entire property. It is the companies plan to use an integrated management approach to weed prevention that will allow for the best results to reduce the weed concerns on this property. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh J Vegetation\Exh J Vegetation DRAFT w NRCS Rangeland.docx See the following photos of the habitat identified within the Stiles Mining Resource area. These pictures were taken on 9/16/2021 from the fence/gate corner between Parcels I and II, ±450 ft south of the North property line. North towards the South Platte River and the adjoining property with cottonwood riparian area. 1. • _ - .c _ 1♦ I • P {{'L'T ' • YPyy � •Y i r� ♦ T%!�E ill•♦• �fl nL LLiM1 F �`�L} 9w .. Y i./ L .. (a w ♦Y l JSI Y,krY fgv, Jrli a �. • 1. 'lt. IG I. L" .. �r��v ii•J•. /i'(/-E .T�• i L.I��C.�� e.:��ey�[ +I._ •L�`YTM1•I♦i iiZ I •�✓: yii�'C yl i'�.W'r6s�t}�:�1—i�S•- L♦�i �I'.� �• tiL'� '�•.- Iz "'sii':. �" ILw.t♦L,. ifs i Yh yy a' y •. .'�J r _ 1 (.a _� T. �I t• �t.!♦.!T i.. Looking west across parcel I and III Looking south toward County Road 394. across parcel I. Looking east across parcel II H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh J Vegetation\Exh J Vegetation DRAFT w NRCS Rangeland.docx � acew 'Sde'7c6. Ql16RFmFir (U'` r.' U 1W 1k 0 SL ® �] �4PpYb� mwaaizs=t FY3t Frlt Ct+ITH ju8 LJl7f$4 1_5ON I atttr Resowcea Web So Survey I Corn rvst[mn Se'vIe Netmao Caopnt a Sr7 survey H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh J Vegetation\Exh J Vegetation DRAFT w NRCS Rangeland.docx 8.'tt Psgetd.( [UP LEGS D Na of 6�'rest (bRCa) Q Area d boar's'. (A):} Sans Sa?� Ethna Pc vt ns II a233 I > 2339 and <= 2440 II Ncl reeda^n`t evalat3 T,aa fatn2 lktn r r m 2339 .-..r > 2339 a^.d c 260 m e Nd rated a' nr. avaabfe 6o Rating PcSi'S rI am9 f > 233D sc1 <= 2440 o Na rated o rrtatt¢ Streams end Cams lrrnpertatton pr{. Rs}a treerstate FaB"rrays us Rcukes Wear Roads Loa9I Rnets ®am`.grourrd AeriV Pbo'. by 5Thf4 tdeterrd Resources Caeeeseettae SeMce W&P INFORftiATfO€�' The tel surveys Cut co:rp;tee yocr AOI tare mapped at 124,030. Worming: dab Wep may not be valid at this scale_ ThThyemen( a1 maps beyond the scale of emppog can cause m u'cSersta;rdeg a7 the edict of mappirp and artery of sail the. placement The maps do not serer the vane( areas of cenhmmting sofa tha`, co:tfd have been Smear at a more batched "ale. Freese rely on (tie: bar scale on each map sheet ten map measuremerbs. Source of Map: Hatura' Sesources Conservation Service Web Sp_" Survey URL: Covrcrmete System: Wad Me-cator (EPSG:3857) Maps from the Wets Sot SuNey are based on the They Ptercator projedsan, vAiich preserves cr"ecticn and shape but distorts dddetre and tea. A projection that preserver area, such as the Albers equal-area coat projection, shmild be used E more acerrete cAculabpns of dihanee or area are required. This product N generated tarn fda USDA44RCS cedded date as of tea verston dote(s) listed be(mc: Sod Survey Area: Pletb Camty, Cofpradh, Sortheer Part Survey Area Data: Vatston 12, dun 5, 2020 Sol map units are heeled (as spare eflneel for pap scales t APAA or fever. Pete(s) sets" ('cages we -e photrrrsphed: Jul tas, 2018 —Arm 10, 2018 The ordnphoto or deer base map on w"r'ch the soh Pees care cerrpA d and d:Vtdeed p rbed(y dross from the background enapery displayed on theca maps. As a reauft, aerrre Rarer r+9ting of map unto. Lmmndades may be eviderd. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh J Vegetation\Exh J Vegetation DRAFT w ARCS Rangeland.docx dttdiyddt aye 2at4 Range Pnodudion (Favaeble Year) —Weld Count Cobra, SaAham Pad Ss Mmmg Resource -'Mgetbon Range Production (Favorable Your) M vnItsym0od waaYdi n. rt oaoa.ws.m aae per yssr] AcieOin:AY7l psmdc(AAB 3 AquodsendAquaa , g lYaube6 mf 2330 130L? 90.5% 10 El wU3WaltsWxV- kefe0Dl complex, O1b 3 poem elopes, rmely flooded 2440 *4.5 94% 85 0!® 0.0% Totals for Arcs of hdenst 9013 110.076 Description Total range production is the amount of vegetaQon Kit cana be id togrow anntmly in a well rnallaged area that is suppo the pawl naldwat plant community. It Includes all vegetallon, wtie ier or not it is pia l e 10araig animals. It includes the arrant years gtowtit of teavetldl. addlfil i .etwo dy plants. It does not include the Increase In stem dater of adds slaubs_ It Is In pounds per aa'e of air-dry vegeIori. In s aasem the amount and dllstdbufton of predpltatlori and be tempelakxesnsell.0 gofrig conditions sntstantlally better than average. Yields are Itna common: percent of air-dry moisture content in areas that have spa climate and topogapIiy d ices: ira ilieandta and amount of vegetation produced on rangeland awe closely redbthetIndoi soil. Effective management Is based on the felettonsN)het wi ice sells and vegetation and wafer. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh J Vegetation\Exh J Vegetation DRAFT w NRCS Rangeland.docx EXHIBIT K — Climate Climate information is available for the Greeley, CO (053553) weather station from the Western Regional Climate Center. The climate data summary form 1967 through 2016 indicates the average total annual precipitation at the site to be 14.2 inches per year. Temperature See the following table for average temperature and precipitation data. The Stiles Mining Resource will typically have summers that are hot and mostly clear, and the winters will be freezing, dry, and partly cloudy. Over the course of the year, the temperature will typically vary from 14 °F to 89°F and will be rarely below -2° F or above 98°F. GREELEY UNC, COLORADO (053553) Period of Record Monthly Climate Summary Period of Record: 3/1/1967 to 6/10/2016 JAN FEB MAR APR MAY JUh JUL AUG SEP OCT NOV DEC Annual A Tote! Average Max. Temperature F` 419 47:1 56:7 64.9 73.9 84.4 90.3 88rC 79.9 66.3 315 419 656 Average Min. Temperature(F` 15.5 19.8 27.0 34.8 44.1 52.9 58.5 56.3 47.0 35.5 2= ? 16:5 36.1 Average Precipitation in.) 0.46 0 37 1.02 1.79 2.43 1.86 1.51 1.36 138 0 31 1 1S 14&0 Average Total Snowfall in. 5.7 4.3 7.1 4.7 0.8 - - - 0:6 3.3 57 6,E 33 39.8 Averse Total Snow Depth in 2.0 6 , L, i 1.0 OA GREELEY UNC, COLORADO 1981 - 2010 Temperature and Precipitation GREELEY UNC, COLORADO (053553) 1981-9810 AA Year Average V. tic 100 so so 76 eo 60 40 36 2e to e Jan i Feb 1 hart Rpr i IJun IJul i 1� IDet i iDec i� 35. owe. wf Year Mix Temp Ave Temp . flin Temp Data is a 29 day running average. I Ucskrn Resiowl cliw¢to - Max_ Temp. is the average of all daily maximum temperatures recorded for the day of the tear between the years 1981 and 2010. i.Y - Ave. Tempis the average of all daily average temperatures recorded for the day of the year between the veers 1981 and 2010. M► _ Min. Temp. is the average of all daily minimum temperatures recorded for the day of the year between the }ears 1981 and 2010. - Precipitation is the average of all daily total precipitation recorded for the day of the year between the years 1981 and 2010. Precipitation A wet day has at least 0.04 inches of liquid -equivalent precipitation. The wet season lasts 5 months, from April to September. The dry season lasts 7 months, from September to April. The most common form of precipitation at Greeley -Weld County Airport is rain and Greeley gets some kind of precipitation an average of 77 days per year. H:\Pits 555 Plants\EVANS\Stiles Mining Resource\Exh 5 Climate\EXHIBIT K.docx Daily Chance of Precipitation 100% snow rain snow 0 100% 90% 90% 80% 80% 70% 70% 60% 1 60% 50% ) 50% 1 40% May 25 i 40% 30% APr 6 28% ! 1 30% 20% Feb 1$ 17° Nov 23 20% Jan 11 10% 6% 8 7o '� 10% 0% Jon Feb Mar Apr May Jury ' u1 Aug Sep Oct Nov Dec 0% The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same da;. Rainfall The most rain falls during the 31 days centered around May 17, with an average total accumulation of 1.9 inches and an average of 15 inches of rain per year. The rainless period of the year lasts for 4.6 months, from October 30 to March 17. Average Monthly Rainfall rain 4 in 3 in 2 in 1m 0 In _cii. G AMI... - lF Jan Feb Mar Aor May 17 1.8 in • Jun 3n Jul 26 2in 1.4h Oe13fl o- �..e+.....�. 1 in x`°-.4.5 ei Dec 24 1 ` i,,,,, 0.1.in.. • —�<1C i5ai Jul Aug Sep Oct Nov Dec 0 in The average rainfall (solid fine) accumulated over the course ate eliding 31 -day period centered err the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid -equivalent snowfall H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh K Climate\EXHIBIT K.docx Snowfall Greeley averages 40 inches of snow per year. Average Liquid -Equivalent Monthly Snowfall snow 2.0 in 1.5 in 1.0 in 2.0 in 1.5 in I #.. 1.0 in 0.5 in Jan 14 Mar19 Dec 15 0.5 in Olin 0.2 in Apr21 Jut 15 I Oct13• 021n _.C .�.. ..._0.1 In 0.0 in 0.1 itt • Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec The overage Liquid -equivalent snowfall (solid line) occurnu(oted over the course of a sliding 31 -day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bonds. The thin dotted line is the corresponding overage roinf©lt Growing Season A definition for growing season is the longest continuous period of non-freezing temperatures (≥ 32° F) in the year. The growing season at Greeley -Weld County Airport typically lasts for 5 months (155 days), from around May to the early part of October. USDA Plant Hardiness Zone USDA Piant Hardiness Zone Map rte. 1 � F. i• s 1 V s- 6NJ 'F. •. J Siv �YF ®llnenl P__. icei• I. .fi. S li Zone 5 is one of 13 USDA Hardiness Zones (United States Department of Agriculture). Each zone is divided into two subsets. The Stiles Mining Resource is in Zone 5b. The zone designation will help in our selection of plants that will survive the zone 5b's average minimum winter cold temperatures between (-15° F to -10° F). H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh K Climate\EXHIBIT K.docx EXH I BIT L — R ECLAMAMN COST If�liiBli�" L- RECLAf ATO COST STii.ES :RNINff RSOJItCE The iargeet one thue exposure is reclamation of the top sed aoerbiwden strip eeeas ed'ie bode 2A-8 ae D whth are left owed after year one. it TaDaeoiptee units Unit. UtCest Extension 1 Topsoil 8, $15 $690,000 2 Seed Drill- NativeGress Seed Mix- 14 pls/ac 56 Ac $1,5m $ , 3 Seed Drill- Native ForbSeed Mix- 4$ pis/ac 56 Ac $1,100 $51,600 4 Much - Native Crass,Weed Free 56 Ac $1,200 $67;200 5 Chemicals- Herbicide and amendments 56 Ac $170 $9,520 itePmn To* it iptlon Unite Unit Extension 5 Contractor mobilization 5% % $45,616 6 Overhead /drrministration 10% % 96ofTotal 91,292 Administration 5% % Direct Cost ®�1 8 Profit @ (10% of Direct ) 10% % $91,232 13 Total Overhead and Profit $273,695 ADMINISTRATION AND CON1ThIENCY Ite ma. Task Dptien Units Unit % of Contract Amount 15 Administration Engineering, contract arid Enana eiu rat 5% % 16 Contingency 10% % $59,301 $11$,602 Task iption Units Unit Unit Cost Extension H:\Pits HBP Plants,\EVAN$\Stiles Mining Resource\Exh L Reclamation Costs\EXHIBIT L Redamation Cost.docx EXHIBIT M — OTHER PERMIT AND LICENSES Asphalt Specialties Co., Inc. will obtain and Colorado Division of Reclamation, Mining and Safety 112 Reclamation Permit and prior to operation at the Stiles Mining operation, the following permits will be obtained: 1. Colorado Mined Land Board, Colorado Division of Reclamation, Mining and Safety 112 Reclamation Permit. 2. Weld County Access Permit 3. Weld County Road Use Agreement 4. Colorado Department of Public Health and Environment - Air Pollution Control Division (APCD): a. Land Development Air Pollution Emission Notice (APEN). b. Mining Operation Form ACCD-222. This form is for sand and gravel pits. c. Crusher / Screen APEN: Form APCD — 221. This form is to report crushing, screening and other equipment operating at the site. 5. Colorado Department of Public Health (CDPHE) — Water Quality Control Division (WQCD) — National Pollutant Discharge Eliminations System (NPDES) permit. 6. Colorado Division of Water Resources (CDWR) - Gravel Well Permit (GWS 27). 7. Colorado Division of Water Resources (CDWR) — approval of the substitute water supply plan. 8. City of Evans or Weld County — Base flood plain elevation, no rise certification, Flood Hazard Development Permit and may also require Special Flood Hazard Permit 9. City of Evans — Change zoning of Parcel III to 1-3 10. City of Evans — Special use permit. 11. City of Evans —Annexation and zoning Parcel I and II. 12. City of Longmont — Water Supply Agreement. 13. City of Aurora — Water Supply Agreement. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh M Other Permits and Licenses\Exh M Other Permits and Licenses.docx EXHIBIT N - SOURCE OF LEGAL RIGHT TO ENTER As shown on the attached deeds, the property is owned by Hunt Brothers Properties, Inc. The property is being mined by Asphalt Specialties Co., Inc. APPLICANT'S INTEREST IN THE PROPERTY AND LEGAL RIGHT TO ENTER The Applicant, Asphalt Specialties Co., Inc. is granted the legal right by the property owner to apply for permitting, annexation and zoning to mine sand and gravel on the property owned in fee simple and as set out on the attached pages of a Real Estate Purchase and Sale Agreement and ALTA Title Commitment. I certify that Asphalt Specialties Co., Inc. is the Applicant for the Stiles Mining Resource and has my permission, as President of Hunt Brothers Properties, Inc./Asphalt Specialties Co., Inc., to apply for the mining permits on the property described In the attachments and as certified below: Parcel Id: 095935000005 (Parcel 3— West Parcel) in Part of the East Y: of the East 34 of the Southeast % of Section 35 and, Parcel Id: 095936300040 (Parcel 1— Middle Parcel) and Parcel Id: 095936300042 (Parcel 2— East Parcel) in Part of the Southwest 3/ of Section 36, Township 5 North, Range 66 West, 6th PM, Weld County, Colorado By:�N Daniel W. Hunt, President Hunt Brothers Properties, Inc. Asphalt Specialties Co., Inc Signed and sworn to me this . 2021 by Daniel W. Hunt, President of Hunt Brothers Properties, Inc./Asphalt Specialties Co., Inc., both Colorado Corporations. ACKNOWLEDGEMENTS STATE OF COLORADO Ss JANONCOUNTY OF ADAMS ) BLICLORADO4030527 April 29, 2024 Witness my hand and official seal tary Public My Commission Expires H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh N - Source of Legal Right to Enter\Exh N Source of Legal Right to Enter.docx 4720241 05/28/2021 12:26 PM Total Pages: 7 Rec Fee: $43.00 Doc Fee: $350.39 Carly Koppes - Clerk and Recorder, Weld County, CC SPACE ABOVE THIS LINE FOR RECORDER'S USE State Documentary Fee GENERAL WARRANTY DEED Oate THIS GENERAL WARRANTY DEED is dated on the 281 day of May 2021, between Rolling T Livestock, LLC, a Colorado limited liability company ("Grantor"), and Hunt Brothers Properties, Inc., a Colorado corporation ("Grantee"), whose address is 10100 Dallas Street, Henderson, CO 80640. WITNESSETH, that Grantor, for and in consideration of the sum of TEN DOLLARS ($10) and other good and valuable consideration, which is hereby acknowledged, has granted, bargained, sold and conveyed, and by these presents do grant, bargain, sell, convey and confirm unto Grantee, its successors and assigns, all of that certain real property, including all the improvements and spec JicaUy including, but not limited to all sand, grave4 aggregate, rock, and topsoil lying in, on and under the following described lands in the County of Weld and State of Colorado that are legally described as follows: See Exhibit "A" attached hereto and incorporated herein by reference. TOGETHER WITH all water, water rights, ditches, ditch rights, storage rights, wells, well permits, stock certificates, reservoir rights, canals, canal rights and other rights in and to the use of water, whether or not adjudicated, which are appurtenant to or used on or in connection with the Property, together with all associated structures for the diversion, conveyance, measurement, storage or use of said water rights and all easements, rights of way, licenses, permits and contract rights. TOGETHER WITH all and singular the hereditaments and appurtenances thereunto belonging, or in anywise appertaining, and. the reversion and reversions, remainder and remainders, rents, issues and profits thereof; and all the estate, right, title, interest, claim and demand whatsoever, of Grantor, either in law or equity, of, in and to the Property; TO HAVE AND TO HOLD the Property, with the appurtenances, unto the Grantee, its, successors and assigns forever. And, Grantor, for itself and its successors and assigns, do covenant, grant, bargain and agree to and with the Grantee, its successors, and assigns, that at the time of the signing and delivery of these presents, it is well seized of the premises above conveyed and have good, sure, perfect, absolute and indefeasible estate of inheritance, in law, in fee simple 4720241 05/28/2021 12:26 PM Page 2 of 7 and have good right, power and lawful authority to grant, bargain, sale, and convey the same in manner aforesaid, and that the same are free and clear from all former, and other grants, bargains, sales, liens, taxes, and assessments and encumbrances of whatever kind or nature on the Property or any part thereof, by, through or under Grantor, subject to those matters listed on Exhibit "B" attached hereto and incorporated herein by reference. AND Grantor covenants and agrees to and with Grantee, to warrant and defend the quiet and peaceable possession of the Property by Grantee, its successors, and assigns against every person or persons lawfully claiming the whole or any part thereof. IN WITNESS WHEREOF, Grantor has executed this General Warranty Deed as of the day and year first written above. GRANTOR: Rolling T Livestock, LLC, a Colorado limited liability company By: Fred r " es, Manager STATE OF COLORADO ) )ss COUNTY OF i4c . ) The foregoing instrument was acknowledged before me this 2$ day of May 2021 by Fred Stiles, as Manager of Rolling T Livestock, LLC, a Colorado limited liability company, on its behalf. Witness my hand and official seal. My commission expires: 1 7/ .' ESEAQUS11NE HOFF ARY PUUBUC OF C WRADO E! 2O184 892 3jPage 4720241 05/28/2021 12:26 PM Page3of7 EXHIBIT "A" TO GENERAL WARRANTY DEED (Legal Descriptions) PARCEL I: LOT B, RECORDED EXEMPTION NO 0959-36-03 RECXI7-0197, RECORDED JANUARY 17, 2018 AT RECEPTION NO.4368408, LOCATED IN THE W 1/2 OF THE SW 1/4 OF SECTION 36, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO, EXCEPT THOSE PARCELS DEEDED JUNE 18, 2018 AT RECEPTION NO. 4407999 AND NOVEMBER 9, 2018 AT RECEPTION NO. 4445526 AND JANUARY 29, 2020 AT RECEPTION NO. 4562229. PARCEL II: LOT B, AMENDED RECORDED EXEMPTION NO. 0959-36-03 1AMRECX18-85- 803, RECORDED SEPTEMBER 18, 2019 AT RECEPTION NO. 4524591, LOCATED IN THE SW 1/4 OF SECTION 36, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO EXCEPT THOSE PARCELS DEEDED NOVEMBER 9, 2018 AT RECEPTION NO. 4445526 AND JANUARY 29, 2020 AT RECEPTION NO. 4562229. PARCEL III: THE E 1/2 OF THE E 1/2 OF THE SE 1/4 OF SECTION 35, TOWNSHIP 5 NORTH, RANGE 66 WEST OF THE 6TH P.M., WELD COUNTY, COLORADO, EXCEPT THAT PART OF THE E 1/2 OF THEE 1/2 OF THE SE 1/4 LYING SOUTH OF A LINE BEGINNING AT THE SE CORNER OF SAID SECTION 35; THENCE NORTH 00 DEGREES 00 SECONDS WEST 172.15 FEET; THENCE NORTH 86 DEGREES 00 SECONDS WEST TO THE WEST LINE OF THEE 1/2 OF THEE 1/2 OF SAID SECTION 35, COUNTY OF WELD, STATE OF COLORADO. EXCEPTING FROM ABOVE PARCELS THE RIGHT OF WAY FOR 35TH AVENUE CONTAINED IN INSTRUMENTS RECORDED DECEMBER 29, 2003 AT RECEPTION NO. 3139615, 3139614 AND JUNE 20, 2006 AT RECEPTION NO. 3397576 3JPage EXHIBIT O- OWNERS OF RECORD OF AFFECTED LAND (SURFACE AREA AND OWNERS OF SUBSTANCE TO BE MINED The owners of record of the subject property and substance to be mined is Hunt Brothers Properties, Inc. A copy of the deed is in contained in Exhibit N. Owners of surrounding land and structures within 200 ft of the Affected Area are shown on Exhibit C-1, Pre -Mine Map and on the following table.. PEM Cffin t Mailing Address City StatePARCEL * Cad 9.5935105013, EstherMSc hank 4o2o54t Street Greeley CO 80634 95935105014 CityofEvans 9593500 17 110037th Street. Evans CO 80620 Heidi and Juan Romero 95936303041 17509CR394 La -Salle CO 80645 a°'w-: `- "... lCfr`� r �c� s - < Jerry Loeffler 9593 23896CR35 35 La Sa lie CO 80645 om. �., .__._ � _.... 3� _ �� Martin Hernandez 9593 37 1.7043 CR 394 La Salle CO 80645 ._, .., }yam . ... .a ., _... a .. , .. .. .. W'illiamEricFolley 95935030305 16957CR394 LaSalle CO 80645 9593535 & erg Pr lterti , lr .95936 3300, M103 DaIlasStr t Etenslersrrn 6 ' We&f'ounty ZIP STRUCTLINU OV414M Mailing Address City State PARCEL ii: Code 1755#reirr CityofEvans NA 110037t Street Evans CO 80620 GdfreDi' XcetErner - NA 1123 W.3rdAve.. Denver CO 80223 Cult t wa � ¢ r 1 qJ et 2505 istAve-Building Century Link- In Care of Lucas Montano N ri CO 97 Floor 1 -Roam Greeley CO 80531 CO3.23 CC 80531 eqp OCR Midstream.LLC NA 370 17th Streets Suite 2500 Denver CO 80202 OCR Mitream LLC NA. 70 17th Stret. Suite 250 Denver 80202 - AtmisEnergy NA. .1200 11th Ave. Greeley CO 50631 NOTICE OF OIL AND GAS Weld County Tqa INTERESTS AND SURFACE USE Reception # failSngAdrfress State C PD.Erer 282x926 177 SErma r.St Suitt l• rsver 50203. PDCEnergy 2811301 1776 Sher awnSt.,Suite Denver "O 80204 NobNob„ nMr""J',te�riberg Lad y Yy �me�E]llopyy.!�„,iv t ff. ,w k giu .G.- 3.. Kerr McGee Oil & Gas Onshore LP, Attn: Land Manager 1 Wattenberg 352628 1099 18th Street, #1500 Denver CO 80202 H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh 0 - Owners of Record Surface Subsurface\EXHIBIT 0 Owners of Record Surface SubSurface.docx ASPHALT SPECIALTIES CO. 10100 Dallas Street, Henderson, CO 80640 Phone: (303) 289-8555 / Fax: (303) 289-7707 November 24, 2021 Re: Public Notice — Stiles Mining Resource 112 Reclamation Permit Application To whom it may concern: We are forwarding the following notice as part of our permitting process. I have included a copy of the index and preliminary mine map for your information. If you have questions or would like to discuss the project, please give me call. I am available to meet on site. PUBLIC NOTICE Asphalt Specialties Co., Inc. whose address and phone number is 10100 Dallas Street, Henderson, Colorado 80640 / (303) 289-8555 has filed an application for a Regular (112) Construction Materials Operation Reclamation Permit with the Colorado Mined Land Reclamation Board under provisions of the Colorado Land Reclamation Act forthe Extraction of construction Materials. The proposed mine is known as the Stiles Mining Resource and is located at or near Section 35 and 36, Township 5 North, Range 66 West, 6th Prime Meridian, Weld County, Colorado. The proposed date of commencement is April 2022, and the proposed date of completion is June 2067. The proposed future use of the land is General Agriculture and Industrial/Commercial. Additional information and tentative decision date may be obtained from the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567, or at the Weld County Clerk and Recorder's office at 1150 "O" Street, Greeley, Colorado 80631, or the above -named applicant. If you have any questions, please email me at davidkc asphaltspecialties.com or call me at (303) 289- 8555 ext. 7056. Thank you for your time. Sincerely, As77lies Co., Inc. David A. ' g, Material Operations Manager Cc: DRMS Attachments: Index Map, Cl Mine Map. C:\Users\jann\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\U3TQ419R\Letter Owners of Affected Land Surface Area Template Stiles.doc xis r tE§45 +e €a Fd3i{84 R4t ', & 1K' BL di f E1`eF nC4IDS+u.4si� { . z^t?av,?� �F��i9bl0 l 63fe�p au,t arswz I:-- - � ,gam are �`�' �� ,e `•� � to . _ �a�k � Y ..�; a' P� i r - v, ' x' 4i'A, � ky . rya #w1 f" a :.. � c - . . m � te P,.�., .Y �, m ,•.. �, € w}�-tea -� ® € � . h 3 . Yt O 5 ,ti µIv I ° ' LEGAL DESCRSPTOON QI �r a .t Part of the El of the E% or the SE% of Section ii.except that art of the E' of the E% of the SE% and a _= gyp $' "-`" ' p p 7 w pa hip 5 rt � _ . � _.. �,rt ®f the SW /4 of Section 36, �®yens N® h, "'b. Ste' � � � .,,,_. 65W Range 66 West of the 6th P.M., Weld County v m _ tom. w s . Colored®; State ®f C®I®rad®, V Excepting from the above parcels the right of way for 15 5th Avenue contained in instruments recorded December 29th, 2003 at Rece Von loo, 3139615, 3139614 and June 20, 2006 Reception No, 339576, �" Ct� Fl ` a , " _ I Citpy of Greeley in v m w Not To Scale (SITS) tm 2- x 05N:_ 5N'. STILES PIT ;. _ _ _} 1 Jr.. `' Aga= '"� Ta z—.�1 " �'# } `' L a.4t A ar a VV V "'ice - `" a ' ,. - Part of the E9/2 of the E/2. SE/4 - Beauon 3� , and ar j 36. r yam. _ 7®�n�hi� 5®rth. 13anae �6 West W f ' "' + _ .: South Platte River ° ®t the 6th PM. Weld County. Colorado � �aC 1 € 7 , ' qtr+ r ..»d,VVVV a C ' • ... • 5 �.'".,t •� " � ems " . ' Latitude 40,34391 v rs< . z v 2 t ongitude 104.73331 W7L1 `ry dl�� o 0 V. + rtaT e „�` a fa .N V1 p '' � _`;�. � wet� a+, s * w us a r W R46 i_ r Highway 85 , may' r ,fl4N _W 4s `� _ ¢ (�! ❑ d� e ` J -a,.Ong Map Insets o Y"Sfa� ft t� ' Y9I.� ;''" - .. - _i '. ° ., r.... �s+ �'a z+'i ._;;r C� , i a '_ ❑ ry a IBSInterstate25 Town of Milliken USHWY85toGREELEY STILE$ PIT wx:M�,Y" reYam 9Qa ,�9 ®� z„ max. _ m U : T ____ m LIJ a z ` to , z 1r� ❑ � CL3 a --a e ys _ e ` - 65'Ittl ` V 65W 04N V 66W wr+�wawoxen WV4� �� 6U66W 01 US HIM° 55 TO DENVER, COLORADO PROPERTY OWNER Mailing Address City State Return Mail Receipt Number Code Esther M Schank 4020 54th Street Greeley 702 g5c6°O6716 O 37L CO 80634 City of Evans 1100 37th 1 Street Evans CO 80620 a $bt3 O '� . ` . 806 yox Heidi Heidi and Juan Romero 17509 CR 394 La Salle CO 80645 'O600og / b 2$' / r - _______________ Jerry Loeffler _____________ 23896 CR 35 _____ La Salle ___ CO ___ 80645 74i5 D2g5poboo (, 0.25 Martin Hernandez 17043 CR 394 La Salle CO 80645 7�2OpJts&c6714C 24 e Bernardo Nvarre _ .�! Co y r William Eric Folley 16957 CR 394 La Salle CO 80645Pro ,�y 7 STRUCTURE OWNER Mailing Address City State Return Mail Receipt Number Code PDC Energy 1775 Sherman St., Suite 3000 OeJ CO 80203 City of Evans 1100 37th Street Evans CO 80620 G `2 V La S� tee CO $ Ly Xcel Energy 1123 W. 3rd Ave. Denver CO 80223 entra"I.:WeI Yter 2235 2nd Avenue Grey .ey CO -� : Vlw 2505 1st Ave - Building -- Century Link - In Care of Lucas Montano COQ997 Floor 1- Room Greeley CO 80631 CO3.23 1-15®, O Street': Greeley CO t. DCP Midstream LLC 370 17th Street, Suite 2500 Denver CO 80202 DCP Midstream LLC k 37dthet, Suite 2500=" Denver CO 80202 Atmos Energy 1200 11th Ave. Greeley CO 80631 (*) - O,P, R, S and V are located in or adjacent to the WCR 394 right of way. NOTICE OF OIL AND GAS INTERESTS AND SURFACE Mailing Address City State Zip Return Mail Receipt Number USE Code 1775 Sherman St Suite 300 Denver CO 8203 41- Gt�C3! feu: �e�� m,� .?��``�.,.�� -mfr,€ PDC Energy 1776 Sherman St., Suite 3000 Denver CO 80204 7O/Gi2-7,2_ Noble Energy, Inc., Attn Wattenberg Lang 625 Broadway, Suite 2000 Denver CO 80202 Development Kerr McGee Oil & Gas Onshore LP, Attn: Land 1099 18th Street, #1500 Denver CO 80202 Z6 2'o ®b p° �31 2? 3O' Manager! Wattenberg 1O— 0wwEa2 H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh C Pre Mine and Mine Maps\Stiles Pit Details Ownership Tables etc.xlsx Exhibit 0 — Property owner USPS Certified Mail Receipt (Green card will be forwarded to DRMS under separate cover. m M N Certified Mail Fee t4. •� Certified Mail Fear $ ® N $ 0�S r- Extra Services & Fees (checkbon add m Receipt (hatdcopy) $ plate) �e � e Extra Services ,& Fees (checkbaly add.. mate) ielum Receipt (hatdcopy) $_. ® C3 0 Return Receipt (electronic) $ 0 Certified Mail Restricted Delivery $ Postmark Here ® Return Receipt (electronic) $ C3 ❑ Certified Mail Restricted Delivery $ Postmark ® ® - ❑Aduk SignatureRequired $ ❑Aduk Signature Restricted Delivery $ r ' ( ® ❑Adult SignatureRequired $ ® ❑Aduk Signature Restricted Delivery $ Postage Here f / Postage $ ui $ Total Po a Fees Total Posta a antlFees $ ® m Sent To City of Aurora ® SantTn IU City of Evans C3 F M 15151 E. Alameda Parkway, #3200 ® Streei 1100 374 r Street ------------ city, -sr< Aurora, Co 80012 --------- Evans CON . 80620 :.. .. 1 .----------- 1 . 111 •1. -- -- - - . . ,.-. -. .... .. - -..:.. -._ _. I 1 111 •1. _• - - m `® 7C.rflfiedMail r v1 �Li gC) 7- I Certified Mail Ext Services & Fees (checkbox, add fsus ® plate) Return Receipt (hardcopy) $ `tm7 slum Receipt (electronic) $: l/ �e 1� Extra Services & Fees (checkbox, add t ❑ Return Recei nate) Pt (h�dco $ ® ® ❑ Certified Mall Restricted Delivery $ Postmark Here ii) C3 ❑ Return Receipt (electronic ® ) $ ❑ Certified Mail Restricted Delivery Postmark ® q ❑ Adult Signature Required $ ❑Adult Signature Restricted Delivery $ . I2 / $ ❑Adult Signature Requi C 3 red $ ❑Adult Signature Restricted Delivery $ ® Postage Here ti Postage t� ru Total Postage anew $ Total Po ru ge rtryFees 1r®� ® RI ® C3 Sent To _------- Esther M. Schank Street a $ C3 Sent!' RI---- Donnie & Roger Piel 4020 541h Street C� Streei 1764S CR 394 ----- --- Ciry Ste Greeley, Co 80634 --------- city l __ LaSalle, Co 80645 rq m C7 r-� N C7 1= CJ D C3 t•Ji ru C3 ru C3 N OFFJCAL Certified Mail Fe 7 $ � I Extra Services & Fees (check box, add plate) 'S75etum Receipt (hardcopy) $ C. 4 ` e E Return Receipt (electronic) $ Postmark ❑ Certified Mall Restricted Delivery $ Here ❑ Adult Signature Required $ ❑Adult Sign�estricted Delivery. $ ^ s r / Postage /L_ Total Po ge.arlsfees $ Sent Tr Cade K Brodbeck & George W. Sagner Street 17494 W.84th Drive ity5 Arvada, CO 80007 -- RI. ,I- r3 N CD D C3 C3 Lin N C3 ru O N OFFCAL USE i Certified Mail Fe7 $ !® - Extra Services & Fees (checkbon add&addfnate) Retum Receipt (hardcopy) $ eturn Receipt (electronic) $ Postmark ❑ Certified Mail Restricted Delivery $ Here ❑Aduk Signature Required $ ❑Adult Signature Restricted Delivery. $ Postage $ ✓ Total Po Band �qs $ Sent To Heidi &Juan Romero feet 17509 CR 394 ',. Ciiy, St LaSalle, CO 80645 ' • :11 .. 1 - . • 111 •1• D � Certifed Mail Fe ra Services & Fees (check box, add stem Receipt {I pri 1 / 1 / �/ a le /4 D (hardcopy) $ ❑ Return Receipt (electronic) $ S/ r Postmark ® ❑ Carted Mail Restricted Delivery $ Here D ❑Adult Signature Required $ ❑Adult Signature Delivery $ � Postage /' Lfl ru8_____________________ Total Postage a C 3 ru Sent To Phyllis Burkgren ® Streei i 1890 S. Marshall Circle ---------- City,s S Lakewood, Co 80232 r1 y�q 1�i� I C j N C3 M C3 Lii RI ru C3 N RI C3 1-1 N C3 C3 C3 U, RI D RI C� N I A ffi USE Certified Mail Fee $ s 1 alxjra Services & Fees (check box, add plate) ' 1 slum Receipt (hardcopy) $ ® 44 Return Receipt (electronic) $ Postmark ❑ Certified Mail Restricted Delivery $ Here ❑Adult Signature Required $ , r ❑ Adult Signature Restricted Delivery $ / i/.2. 2,) Postage sue/ -r $ J� Total Postage an®pes $ Sent To (� Jerry Loeffler Street. --------- 23896 CR 35 city -31 LaSalle, C® 80645 • . :.. •. 1 11 111 •.-•-- - - o Certified OFFICIAL e $ 4, Le & Fees (check boxy add roplate)ipt (ardcopy)WFEtumReceipt (electronic) $ Postmark ❑Certified Mall Restricted Delivery $ r Here ❑ Adult Signature Required $ t /b- +/® ❑ Adult Signature Restricted Delivery $ Postage $ Total Postage an F,ges Sent To - Brian Johnson ------.__-- Street 17231 CR 394 Ciry 3 LaSalle, CO 80645 Ri I Certified Mail Fee eileMces 5 1— _______ $ Return Recei&Fees (checkbon edd/ ire) ® P (hardcopy) $ _____________ Return Receipt (electronic) $ ® ❑ Certified Mail Restricted Delivery $ ® ❑Aduk Signature Required $ ® ❑ Adult Signature Restricted Delivery. $ r3 FSent e y Lnr osta d Fees 118 t ® rLJMartin Hernandez ® Streei r. 17043 CR394 city ; LaSalle, Co 80645 ----------- • : I I . , 1 I 1 111 . , , Ln N RI C3 N CD C3 C� IC3 C3 RI CCt RI N ru 00 nJ CJ .0 N ED C3 U, ru C3 ru C3 N Certified Mail Fee .P $ Extra Services &Fees (check bon addfeac ) / V) Cyr re «mil •Return Receipt (hardcopy) $ •e 4I Return Receipt (electronic) $ Postmark ❑ Certified Mall Restricted Delivery $ Here ❑ Adult Signature Required $ ❑Adult Signature Restricted Delivery $ Postage Total Postage Sent To Michele & Benitez Bernardo Navarette Street ----------- 17011 CR 394 City3 LaSalle, CO 80645 •---------_ 1 11 111 •1. -- -• - CCr � •e Postmark Here Cert�ed Mail Fee Z $ c, ( 1 Extra Services & Fees (check box, add poste) Return Receipt (hardcopy) $ O Return Receipt (electronic) $ Postmark ❑ Certified Mail Restricted Delivery $ Here • ❑ Adult SignatureRequired $ ❑Adult Signature Restricted Delivery $ 6®r I t ) 1 Postage' Total Postage and $ Sent To William Eric Folley SPreetane 16957 CR 394 City"stet® LaSalle, CO 80645 ------ :.. ., 1 . I 111 .• Exhibit 0 — Notice to Oil and Gas Interests and Surface Uses USPS Certified Receipt (Green card will be forwarded to DRMS under separate cover rr N ru N ru r-i m C7 C3 CO ru ru 0 N ED ru N g A u r9 m ro C3 )_ CO ru r-9 N OFFCAL USE Certified Mail Fee $ pQ W:Retum Services&eturn Receipt (hardoopy) Receipt (electronic) $ Postmark ❑ Certified Mall Restricted Delivery $ Here ❑Adult Signature Required $ ❑ Adult Signature Restricted Delivery $ q / . t4 ) Postage / $ Total Postage and F Sent Tr PDC Energy Stree! 1775 Sherman St., Suite 3000 city;-? Denver, CO 80203 _--------- : e 1 ® 0 1 001 •1• - - m )e ru e e N° vvrvesqvivrivv Certified Mail Fee. cV Extra Services & Fees (check box, add f y��',• eturn Receipt (hardcopy) _ $ C3 EJ Return Receipt (electronic) $. C3 ❑ Certified Mail Restricted Delivery $ ® ❑Adult Signature Required $ ® ❑ Adult Signature Restricted Delivery $ ® Postage CO $ N Total Postage a ru $ rr Sent To Noble Energy, Inc. C3 Street Attn: Wattenberg Land Development N city"S ' 1625 Broadway, Suite 2000 Postmark Here Postmark Here /1 Er m N ru r•9 m Co l3 CD ru ru r -q N OFFJCAL USE Certified Mail Fee v if $ of id Extra Services & Fees (checkbox, add re p®- dare etum Receipt (hardcopy) $ Return Receipt (electronic) $ Postmark Certified Mall Restricted Delivery $ Here ❑ Adult Signature Required $ ❑ Adult Signature Restricted Delivery $ Postage / Total Postage Sent T Kerr McGee Oil & Gas Onshore LP Siree) Attn: Land Manager/Wattenberg 109918th St., Suite 1500 Denver, CO 80202 EXHIBIT P - MUNICIPALITIES WITHIN 2 MILES The municipal boundary for the City of Evan currently encompasses Parcel III of the Stiles Mining Resource. Asphalt Specialties is working with the City of Evans to annex parcels I and II into the City to encompass the entire mine boundary within the Cities boundary. The Stiles Mining Resource is located ±1.5 miles west of the Town of LaSalle. City of Evans 1100 37th Street Evans, Colorado 80620 970-475-1170 Town of LaSalle 128 N 2nd Street LaSalle, CO 80645 970-284-6931 H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh P Municipalities within 2 miles\Exh P Municipal 2 miles.docx Exhibit Q - Proof of Delivery of Notices to • Weld County Commissioners • Conservation District Posting Public Notice Sign Declaration This site known as the Stiles Mining Resource is the location of a proposed construction materials operation. Asphalt Specialties Co., Inc. whose address and phone number is 10100 Dallas Street, Henderson, Colorado 80640 / (303) 289-8555 has applied for a Reclamation Permit with the Colorado Mined Land Reclamation Board. Anyone wishing to comment on the application may view the application at the Weld County Clerk and Recorder's Office, 1250 H Street, Greeley, Colorado 80631, and should send comments prior to the end of the public comment period to the Division of Reclamation, Mining, and Safety, 1313 Sherman St, Room 215, Denver, Colorado 80203. Certification: I, David Icing hereby certify that I posted a sign containing the above notice for the proposed permit area known as the Stiles Mining Resource, on November 24, 2021. iia / /74 "/ 9 2021 b SIGNATURE DATE sl`t t. :, `t { 'I11a.1 R+11F 11fI4 'u;: .• Sign posted on 11/24/21 on site at mine access and adjacent to WCR 394. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\1 12 App\Notices Signs Structure Agreement Template.docx NOTICE OF FILING APPLICATION FOR COLORADO MINED LAND RECLAMATION PERMIT FOR A REGULAR (1121 CONSTRUCTION MATERIALS EXTRACTION OPERATION NOTICE TO THE BOARD OF COUNTY COMMISSIONERS Weld COUNTY Asphalt Specialties Co., Inc. (the "Applicant/Operator") has applied for a Regular (112) reclamation permit from the Colorado Mined Land Reclamation Board (the "Board") to conduct the extraction of construction materials operations in Weld County. The attached information is being provided to notify you of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division") and the local county clerk and recorder. The applicant/operator proposes to reclaim the affected land to General Agriculture and Industrial/Commercial uses. Pursuant to Section 34-32.5-116(4)(m), C.R.S., the Board may confer with the local Board of County Commissioners before approving of the post -mining land use. Accordingly, the Board would appreciate your comments on the proposed operation. Please note that, in order to preserve your right to a hearing before the Board on this application, you must submit written comments on theapplication within twenty (20) days of the date of last publication of notice pursuant to Section 34-32.5-112(10), C.R.S. If you would like to discuss the proposed post -mining land use, or any other issue regarding this application, please contact the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567. I, (Printed Name) received the above notification and the associated application on behalf of the Weld County Board of Commissioners on , 2021. 2021 Signature H:\Pits HBP Plants\EVANS\Stiles Mining Resource\1 12 App\Notices Signs Structure Agreement Template.docx NOTICE OF FILING APPLICATION FOR COLORADO MINED LAND RECLAMATION PERMIT FOR A REGULAR (112) CONSTRUCTION MATERIALS EXTRACTION OPERATION NOTICE TO THE BOARD OF SUPERVISORSOF THE LOCAL CONSERVATION DISTRICT WELD DISTRICT Asphalt Specialties Co., Inc. (the "Applicant/Operator") has applied for a Regular (112) reclamation permit from the Colorado Mined Land Reclamation Board (the "Board") to conduct the extraction of construction materials operations in Weld County. The attached information is being provided to notify you of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division") and the local county clerk and recorder. The applicant/operator proposes to reclaim the affected land to General Agriculture and Industrial / Commercial use. Pursuant to Section 34-32.5-116(4)(m), C.R.S., the Board may confer with the local Conservation Districts before approving of the post -mining land use. Accordingly, the Board would appreciate your comments on the proposed operation. Please note that,in order to preserve your right to a hearing before the Board on this application, you must submit written comments on theapplication within twenty (20) days of the date of last publication of notice pursuant to Section 34-32.5-112(10), C.R.S. If you would like to discuss the proposed post -mining land use, or any other issue regarding this application, please contact the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567. I, (Printed Name) received the above notification and the associated application on behalf of the Weld District, Board of Supervisors for the Local Conservation District on , 2021. __________,2021 Signature H:\Pits HBP Plants\EVANS\Stiles Mining Resource\1 12 App\Notices Signs Structure Agreement Template.docx Exhibit R - Proof of Filing with County Clerk and Recorder NOTICE OF FILING APPLICATION FOR COLORADO MINED LAND RECLAMATION PERMIT FOR A REGULAR (112) CONSTRUCTION MATERIALS EXTRACTION OPERATION Filing for Public Inspection with the Weld County Clerk and Recorders Office The attached information is being provided for public review of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division") and is submitted to the Weld County Clerk and Recorder.. PUBLIC NOTICE Asphalt Specialties Co., Inc. whose address and phone number is 10100 Dallas Street, Henderson, Colorado 80640 / (303) 289-8555 has filed an application for a Regular (112) Construction Materials Operation Reclamation Permit with the Colorado Mined Land Reclamation Board under provisions of the Colorado Land Reclamation Act for the Extraction ofCcniuciion Materials. The proposed mine is known as the Stiles Mining Resource and is located at or near Section 35 and 36, Township 5 North, Range 66 West, 6th Prime Meridian, Weld County, Colorado. The proposed date of commencement is April 2022, and the proposed date of completion is June 2067. The proposed future use of the land is General Agriculture and Industrial/Commercial. Additional information and tentative decision date may be obtained from the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567, or at the Weld County Clerk and Recorder's office at 1150 "O" Street, Greeley, Colorado 80631, or the above -named applicant. I, (Printed Name) have received the above notification, permit application and exhibits on behalf of the Weld County Clerk and Recorder on 2021. ___________,2021 Signature H:\Pits HBP Plants\EVANS\Stiles Mining Resource\1 12 App\Notices Signs Structure Agreement Template.docx Exhibit S —Permanent Man Made Structures Agreements and List MAP ID PROPERTY OWNER Mailing Address City State Zip Code PROPERTY DESCRIPTION Return Mail Receipt Number A City of Aurora 15151 E Alameda Parkway, #3200 Aurora CO 80012 Water Recharge Berms, shared fence, shared irrigation ditch, observation wells within 600 ft of the permit boundary, **(Sorin Natural Rescources 1488W 128th Ave - Ste 100'/ Denver, CO 80234) B Esther M Schank 4020 54th Street Greeley CO 80634 Shared fence C Cade K Brodbeck and George W. Sagner 17494 W. 84th Drive Arvada CO 80007 Shared fence D City of Evans 1100 37th Street Evans CO 80620 Shared fence E Bonnie and Roger Piel 17645 CR 394 ,. La Salle CO 80645 Shared fence F Heidi and Juan Romero 17509 CR 394 La Salle CO 80645 Shared fence, residence, well and utility buildings G Phyllis Burkgren 1890 S Marshall Cir . Lakewood CO 80232 Adjacent to County Rd ROW; South of WCR 394 HH Jerry Loeffler 23896 CR 35 La Salle CO 80645 Adjacent to County Rd ROW, South of WCR 394 Brian Johnson 17231 CR 394 La Salle CO 8.0645, Shared fence and residence J Martin Hernandez 17043 CR 394 La Salle CO 80645 Shared fence, residence, milking parlor, well and utility buildings K Michele and Benitez Bernardo Navarrete 17011 CR 394 Evans CO 80645 Shared fence, residence and utility.building L William Eric Folley 16957 CR 394 La Salle CO 80645 Shared fence, residence, barn, shed and utility building, well within 600 ft of permit boundary ***Norman Gurney -16865 CR 394 - LaSalle, CO 80645) MAP ID STRUCTURE OWNER Mailing Address City State Code STRUCTURE DESCRIPTION Return Mail Receipt Number M• PDC Energy 1775 Sherman St, Suite 3000 Denver CO 8Q2O3, Oil Tanks, Separator and -Equipment N City of Evans 1100 37th Street Evans CO 80620 35th Ave Right of Way and barn O* " Godfrey Ditch 23896 WCR 35 La Salle CO 80645 Irrigation Ditch Xcel Energy 1123 W. 3rd Ave. Denver CO 80223 Power Poles and Electric cable Central Weld County Water 2235 2nd Avenue Greeley CO 80631 Water Pipe „ LR* Link - In Care of Lucas Montano 25051st Ave - Building COQ997Century Floor 1- Room CO3.23 Greeley CO 80631 Buried Communication Assets Weld County 11500 Street Greeley CO 80631 Road Pavement , CR 394 RON/. T DCP Midstream LLC 370 17th Street, Suite 2500 Denver CO 80202 Gas Lines & Meter Station U. DCP Midstream LLC 37017th Street; Suite 2500 Denver CO 8020.2. Gas Line V l Atmos Energy 1200 11th Ave. Greeley CO 80631 Gas Line Agreements will be mailed with USPS return mail receipt to the property and structure owners when the DBMS Issues the Mine ID permit number. Please refer to Map Cl for the general location of the property owners and structures. *" Sorin Natural is listed as the observation well owner on the City of Aurora's property. A notice will be provide to both parties. *** Norman Gurney is listed as the well owner on William Folley's property. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh S - Permanent Manmade Structures\Structure Owner Table etc.xlsx ASPHALT SPECIALTIES Co. 10100 Dallas Street, Henderson, CO 80640 November , 2021 Address City, Colorado Re: Structure Agreement for Stiles Mining Resource Phone: (303) 289-8555 / Fax: (303) 289-7707 SAMPLE To whom it may concern: Asphalt Specialties Co, Inc. (ASCI) is applying to the Colorado Division of Reclamation, Mining and Safety (DRMS) for a Construction Material Regular (112) Operation Reclamation Permit to mine aggregate materials on a property known as the Stiles Mining Resource. The property is located North of Weld County Road (WCR) 394 and Northeast of the intersection of WCR 394 and WCR 35, in a portion of Sections 35 and 36, Township 5 North, Range 66 West, 6th P.M., Weld County, Colorado. We are contacting you as the owner of a structure on or within two hundred (200) feet of the proposed Stiles Mining Resource site. The State of Colorado, Division of Reclamation, Mining and Safety ("DRMS") requires that where a mining operation may adversely affect the stability of any significant,valuable, and permanent man-made structure located within two hundred (200) feet of the affected land, the operator shall either: 1. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for a damage to the structure. Our agreement is attached to this letter. 2. Provide an appropriate engineering evaluatiYthat demonstrates that such structure(s) shall not be damaged by activities occurring at the mining operation. fitted Wan exhibit in the DRMS permit application This notice contains a StrugKireg n and a vicinity map, which shows the affected area. Your structure(s) is/are listed in the attached agreement. PJase iJWband return the attached ASCI Structure Agreement which states that ASCI shall reimburse the structure owner fr ny damage done to your structure because of our mining or reclamation operation. If you decide to execute the Structu Agreement, we ask that you sign and notarize the agreement, within 30 days of receiving it. Enclosed is a stamped, pre -addressed envelope so you can return one copy of the notarized agreement to us. Once received, we will sign the agreement and send you a fully executed copy of the agreement for your records. ASCI has also included a Geotechnical Stability analysis in its permit application to the DRMS, which indicates that any structures within 200 feet of the permit area shall not be damaged by mining or reclamation activities occurring at the above reference site. Please be assured that if any damage occurs to your structure(s) because of our operations, Asphalt Specialties Co., Inc. will reimburse you for any damage to the structure. If you have any questions about this request, please email me at davidk(u)asahaltsaecialties.com or call me at (303) 289-8555 ext. 7056. Thank you for your consideration. Sincerely, Asphalt Specialties Co., Inc. David A. King, Material Operations Manager Cc: DRMS Attachments: Structure Agreement (3 pages for notary and return.) with Exhibit Cl of Mining Plan. Addressed, stamped envelope to use for return of the Structure Agreement. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh S - Permanent Manmade Structures\Letter Structure Agreement Template Stiles.doc Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant,valuable, and permanent man-made structure located within two hundred (200) feet of the affected land,the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in thestructure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead,from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & HardRock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with theRules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: 1. 2. 3. 4. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh S - Permanent Manmade Structures\L etter Structure Agreement Template Stiles.doc CERTIFICATION The Applicant, Asphalt Specialties Co., Inc. by Daniel W. Hunt, as President, does hereby certify that the P (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for File number M 2021 , the Stiles Mining Resource. This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operation&Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEDGED BY: Applicant: Asphalt Specialties Co., Inc. Date: STATE OF Colorado ) )ss. COUNTY OF Adams ) Representative Name: Daniel W. Hunt Title: President The foregoing was acknowledged before me this day of , 2021, by Daniel W. Hunt as President of Asphalt Specialties Co. Inc. My Commission Expires: Notary Public H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh S - Permanent Manmade Structures\Letter Structure Agreement Template Stiles.doc NOTARY FOR STRUCTURE OWNER ACKNOWLEDGED BY: Structure Owner: Name: Date: Title: STATE OF )ss. COUNTY OF The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public Attached to each agreement is Pre -Mining Map Exhibit C-i and Slope Stability Analysis Documentation. H:\Pits HBP Plants\EVANS\Stiles Mining Resource\Exh S - Permanent Manmade Structures\Letter Structure Agreement Template Stiles.doc Exhibit T — Rule 6.5 Geotechnical Stability Exhibit November 23, 2021 EARTH ENGINEERING CONSULTANTS, LLC Asphalt Specialties, Co., Inc. 10100 Dallas Street Henderson, Colorado 80640 Attn: Mr. David King (Davidk@asphaltspecialties.com) Re: Subsurface Exploration and Slope Stability Evaluation Stiles Mine La Salle, Colorado EEC Project No. 1212092 Mr. King: Enclosed, herein, are the results of the subsurface exploration and geotechnical engineering services completed by Earth Engineering Consultants, LLC (EEC) personnel for the referenced project. The purpose of this exploration was to develop subsurface information for stability evaluation of slopes that would develop during the open pit mining operation planned at the referenced project. This exploration and evaluation were carried out in general accordance with our proposal dated September 9, 2021. Introduction We understand open -pit mining is planned on the approximate 167 -acre property in La Salle, Colorado. The open pit mine would operate to obtain useable aggregates, with mining extending to depths not to exceed approximately 42 feet below ground surface. The mining operations would propose sloped cuts with the top of the cut slope maintaining a minimum setback of 50 feet from the permit boundary. Furthermore, we understand the open pit would maintain dewatering trenches within the existing cut slopes to dewater the pit and prevent water seepage into the open cut mine. EXPLORATION AND TESTING PROCEDURES To obtain information of the existing subsurface conditions, six (6) test borings extending to depths of approximately 35 to 45 feet below present site grades were advanced within the proposed mining area. The boring locations were established in the field by EEC personnel by pacing and 4396 GREENFIELD DRIVE WINDSOR, COLORADO 80550 (970) 545-3908 FAX (970) 663-0282 www.earth-enaineerina.com Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 2 estimating angles from identifiable site references. The approximate locations of the completed test borings are indicated on the attached boring location diagram. The locations of the test borings should be considered accurate only to the degree implied by the methods used to make the field measurements. Individual boring logs and a diagram indicating the approximate boring locations are included with this report. The borings were completed using a truck mounted, CME-55 drill rig equipped with a hydraulic head employed in drilling and sampling operations. The boreholes were advanced using 4t/4 -inch inside diameter hollow stem continuous flight augers. Samples of the subsurface materials encountered were obtained using split -barrel and California barrel sampling procedures in general accordance with ASTM Specifications Dl 586 and D3550, respectively, with additional bulk samples of the subgrade soils obtained from the auger cuttings. After completing the boreholes, temporary field slotted piezometers were installed in each of the borings for subsequent groundwater level measurements. After the subsequent readings were obtained, those piezometers were removed, and the boreholes were backfilled. In the split -barrel and California barrel sampling procedures, standard sampling spoons are driven into the ground by means of a 140 -pound hammer falling a distance of 30 inches. The number of blows required to advance the split barrel and California barrel samplers is recorded and is used to estimate the in -situ relative density of cohesionless soils and, to a lesser degree of accuracy, the consistency of cohesive soils. In the California barrel sampling procedure, relatively intact samples are recovered in removable brass liners. All samples obtained in the field were sealed and returned to our laboratory for further examination, classification and testing. Laboratory moisture content tests were completed on each of the recovered samples. Atterberg limits and washed sieve analysis tests were completed on selected samples to evaluate the quantity and plasticity of fines in the subgrades. Direct shear tests were carried out on remolded samples to evaluate the shear strength parameters of the subgrades. Results of the completed laboratory tests are indicated on the attached boring logs and summary sheets. As part of the testing program, all samples were examined in the laboratory and classified in general accordance with the attached General Notes and the Unified Soil Classification System, based on the soil's texture, plasticity, and grain size distribution. The estimated group symbol for Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 3 the Unified Soil Classification System is indicated on the boring logs and a brief description of that classification system is included with this report. Classification of the bedrock was based on visual and tactual observation of disturbed samples and auger cuttings. Coring and/or petrographic analysis may reveal other rock types. SITE AND SUBSURFACE CONDITIONS The Stiles Mine property includes an area of approximately 167 acres which extends north of Road 394 near the intersection of Road 35 which is about 1 mile southwest of the town of La Salle. The property was relatively flat with apparent surface drainage to the northeast (South Platte River) at slopes of less than about 1%. Within the permit boundary, the site was vacant land. Outside of the permit boundary, prior construction observed included multiple homesteads/farmsteads on the south side of the site, a possible oil/gas facility on the north side of the site, and an area near the center of the site with unknown surface improvements/dwellings. EEC personnel were on site during the drilling operations to evaluate the subsurface conditions encountered and direct the drilling activities. Field logs prepared by EEC site personnel were based on visual and tactual observation of auger cuttings and disturbed samples. The boring logs included with this report may contain modifications to the field logs based on results of laboratory testing and engineering evaluation. Based on results of the field boring and laboratory testing, subsurface conditions can be generalized as follows. From the ground surface, approximately 0 to 6 inches of topsoil and vegetation was encountered. The topsoil/vegetation was underlain by overburden soils consisting of brown sandy clay or clayey sand which extended to depths of approximately 3 feet below ground surface. The overburden soils were low to moderately plastic, and relatively stiff to very stiff. The overburden soils were underlain by sand with gravel and various amounts of silt which extended to depths of approximately 34 to 42 feet below ground surface. The sand with gravel soils were generally loose nearer surface and dense to very dense with depth. Underlying the sand with gravel was claystone bedrock which extended to the bottom of the test borings. The stratification boundaries indicated on the boring logs represent the approximate locations of changes in soil and rock types; in -situ, the transition of materials may be gradual and indistinct. Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 4 Groundwater Observations were made while drilling and after completion of borings to detect the presence and depth to groundwater. During drilling operations, groundwater was encountered at depths ranging from approximately 5.5 to 7 feet below ground surface. Approximately 2 weeks after drilling, groundwater was measured at depths ranging from approximately 5.3 to 6.3 feet below ground surface. After the last groundwater level measurement, the piezometers were removed, and the boreholes were backfilled. Fluctuations in groundwater levels can occur over time depending on variations in hydrologic conditions (i.e., the water levels in the South Platte River) and other conditions not apparent at the time of this report. Long-term monitoring of water levels in cased wells, which are sealed from the influence of surface water, would be required to evaluate the depth and fluctuations in groundwater levels at the site. Physical Characteristics of Subarades The site subgrades encountered generally consisted of a relatively thin mantle of near surface cohesive overburden soils underlain by sand with gravel with various amounts of silt and apparent cobbles with depth. The physical properties of the materials encountered in the borings are summarized in the following sections. Note that changes in materials and physical properties of those materials may vary from boring location to boring location. The parameters outlined below do not include any safety factors. Overburden The overburden subgrades generally consisted of sandy clay and clayey sand. Laboratory testing on select samples of the overburden soils included Atterberg limits, washed sieve analysis, and unconfined compression (estimated using a calibrated hand penetrometer) tests. The results of the laboratory testing are included on the attached boring logs and summary sheets. In summary, the overburden soils were low to moderately plastic with liquid limits ranging from 27 to 37% with plastic indices ranging from 10 to 20%. At current moisture and density conditions, the subgrades were relatively stiff to very stiff. Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 5 Sand with Gravel The overburden soils were underlain by sand and gravel which extended to the underlying bedrock. Select samples of the sand and gravel subgrades were tested in the laboratory for plasticity, grain size distribution, and shear strength parameters. In general, the sand with gravel soils were poorly graded to well graded and generally contained low and variable silt content. Direct shear testing on two (2) samples indicated ultimate shear strength parameters (friction angle, 0 and cohesion, C) of 30° and 0 pounds per square foot, and 31.9° and 275 pounds per square foot, respectively. ANALYSIS AND RECOMMENDATIONS The stability of two sections were evaluated as requested. Those sections included a Non -Critical Structures section and Critical Structures section. Both sections assumed a minimum setback from the top of the cut slope to the permit boundary of 50 feet. The Critical Structures section also assumed a surcharge of 2,000 pounds per square foot setback 50 feet from the top of the cut face. The analyses assumed a maximum 42 -foot excavation depth which would extend to bedrock, and continuous dewatering at the base of the excavation. Based on the subsurface conditions encountered and the geometry of the proposed excavation, stability analyses were carried out to determine the maximum allowable slope for the cut face to satisfy the minimum required safety factors. The stability analyses were evaluated using Morgenstern -Price method of slices modeled in SLOPE/W software provided by GeoStudio. Porewater pressures were modeled using SEEP/W software. Soil parameters used in the analyses were obtained from the conditions observed, the results of laboratory testing, and/or estimated from available geotechnical information. Shear strength parameters used for the overburden soils included an assumed friction angle of 25° and cohesion of 100 pounds per square foot. For the sand with gravel, an average friction angle of 310 and average cohesion of 138 pounds per square foot was used. The results of the slope stability analyses for Non -Critical Structures are shown in Figures 1 through 4, and for Critical Structures Figures 5 through 8. The safety factors associated with the analyses are summarized in Table 1. Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 6 Table 1: Summary of Slope Stability Results Section Description of Geometry Maximum Steepness Safety Factor Safety Factor of Slope (Static) (Seismic) I Non -Critical Structures 2.25:1 (horizontal to vertical) 1.5 ≥ 1.3 Required 1.15 ≥ 1.15 Required 2 Critical Structures 3:1 (horizontal to vertical) 1.8 ≥ 1.5 Required 1.3 ≥ 1.3 Required • Non -Critical Structures (e.g., fences) No imminent danger to human life, minor repair costs, and minor environmental impact if slope fails. • Critical Structures (e.g., residences, utilities, dams, pipelines, irrigation canals, public roads, etc.). Potential human safety risk, major environmental impact, and major repair costs if slope fails. The minimum factors of safety and definitions of Non -Critical Structures and Critical Structures, are based on Colorado Division of Reclamation, Mining and Safety, Proposed Slope Stability/Geotechnical Analysis Policy for The Mined Land Reclamation Board, dated May 16, 2018; that specification should be reviewed for completeness. If the factors of safety required vary from those specifications, this report should be reviewed by EEC and revised as necessary. Based on the results of seepage and slope stability evaluations, we recommend the slopes within the mine for with Non -Critical Structures should not exceed a maximum steepness of 2.25:1 (horizontal to vertical) and slopes for Critical Structures not exceed a maximum steepness of 3:1. The slopes should maintain a minimum distance from the top of the slope to the permit boundary of at least 50 feet. Surcharges on the ground surface less than 50 feet should not exceed light cars and light truck traffic while the excavation is open. If surcharges exist greater than assumed in this report, EEC should be contacted to re-evaluate the slope stability. Groundwater should be maintained at or below the bedrock elevation during the open excavation. During mining operations, all slopes should be carefully and continuously observed to see that the slopes are stable. EEC should be notified of signs of slope instability, such as tension or surface cracks, or if the subgrades vary substantially than identified in this report. Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 7 General Comments The analysis and recommendations presented in this report are based upon the data obtained from the soil borings performed at the indicated locations and from any other information discussed in this report. This report does not reflect any variations which may occur between borings or across the site. The nature and extent of such variations may not become evident until further exploration or construction. If variations appear evident, it will be necessary to re-evaluate the recommendations of this report. It is recommended that the geotechnical engineer be retained to review the plans and specifications so comments can be made regarding the interpretation and implementation of our geotechnical recommendations in the design and specifications. It is further recommended that the geotechnical engineer be retained for testing and observations during earthwork construction phases to help determine that the design requirements are fulfilled. This report has been prepared for the exclusive use of Asphalt Specialties Company, Inc. for. specific application to the project discussed and has been prepared in accordance with generally accepted geotechnical engineering practices. No warranty, express or implied, is made. In the event that any changes in the nature, design, or location of the project as outlined in this report are planned, the conclusions and recommendations contained in this report shall not be considered valid unless the changes are reviewed, and the conclusions of this report are modified or verified in writing by the geotechnical engineer. Earth Engineering Consultants, LLC EEC Project No. 1212092 November 23, 2021 Page 8 We appreciate the opportunity to be of service to you on this project. If you have any questions concerning this report, or if we can be of further service to you in any other way, please do not hesitate to contact us. Very truly yours, Earth Engineering Consultants, LLC Reviewed b 0r• . ►►rti1tI Ali Khorasan Project Manager Ethan P. Wiechert, P.E. Senior Geotechnical Engineer DRILLING AND EXPLORATION DRILLING & SAMPLING SYMBOLS: SS: Split Spoon - 13/8" I.D., 2" O.D., unless otherwise noted PS: Piston Sample ST: Thin -Walled Tube - 2" O.D., unless otherwise noted WS: Wash Sample R: Ring Barrel Sampler - 2.42" I.D., 3" O.D. unless otherwise noted PA: Power Auger FT: Fish Tail Bit HA: Hand Auger RB: Rock Bit DB: Diamond Bit = 4", N, B BS: Bulk Sample AS: Auger Sample PM: Pressure Meter HS: Hollow Stem Auger WB: Wash Bore Standard "N" Penetration: Blows per foot of a 140 pound hammer falling 30 inches on a 2 -inch O.D. split spoon, except where noted. WATER LEVEL MEASUREMENT SYMBOLS: WI : Water Level WS : While Sampling WCI: Wet Cave in WD: While Drilling DCI: Dry Cave in BCR: Before Casing Removal AB : After Boring ACR: After Casting Removal Water levels indicated on the boring logs are the levels measured in the borings at the time indicated. In pervious soils, the indicated levels may reflect the location of ground water. In low permeability soils, the accurate determination of ground water levels is not possible with only short term observations. DESCRIPTIVE SOIL CLASSIFICATION Soil Classification is based on the Unified Soil Classification system and the ASTM Designations D-2488. Coarse Grained Soils have move than 50% of their dry weight retained on a #200 sieve; they are described as: boulders, cobbles, gravel or sand. Fine Grained Soils have less than 50% of their dry weight retained on a #200 sieve; they are described as : clays, if they are plastic, and silts if they are slightly plastic or non -plastic. Major constituents may be added as modifiers and minor constituents may be added according to the relative proportions based on grain size. In addition to gradation, coarse grained soils are defined on the basis of their relative in - place density and fine grained soils on the basis of their consistency. Example: Lean clay with sand, trace gravel, stiff (CL); silty sand, trace gravel, medium dense (SM). CONSISTENCY OF FINE-GRAINED SOILS Unconfined Compressive Strength, Qu, psf Consistency < 500 Very Soft 500 - 1,000 Soft 1,001- 2,000 Medium 2,001- 4,000 Stiff 4,001- 8,000 Very Stiff 8,001-16,000 Very Hard RELATIVE DENSITY OF COARSE -GRAINED SOILS: N-Blows/ft Relative Density 0-3 Very Loose 4-9 Loose 10-29 Medium Dense 30-49 Dense 50-80 Very Dense 80 + Extremely Dense PHYSICAL PROPERTIES OF BEDROCK DEGREE OF WEATHERING: Slight Slight decomposition of parent material on joints. May be color change. Moderate Some decomposition and color change throughout. High Rock highly decomposed, may be extremely broken. HARDNESS AND DEGREE OF CEMENTATION: Limestone and Dolomite: Hard Difficult to scratch with knife. Moderately Can be scratched easily with knife. Hard Cannot be scratched with fingernail. Soft Can be scratched with fingernail. Shale. Siltstone and Claystone: Hard Can be scratched easily with knife, cannot be scratched with fingernail. Moderately Can be scratched with fingernail. Hard Soft Can be easily dented but not molded with fingers. Sandstone and Conglomerate: Well Capable of scratching a knife blade. Cemented Cemented Can be scratched with knife. Poorly Can be broken apart easily with fingers. Cemented,, UNIFIED SOIL CLASSIFICATION SYSTEM Soil Classification Group Group Name Criteria for Assigning Group Symbols and Group Names Using Laboratory Tests Symbol Coarse - Grained Soils Gravels more than Clean Gravels Less Cu24 and 1<Cc53E GW Well -graded gravel r more than 50% 50% of coarse than 5% fines retained on No. 200 fraction retained on Cu<4 and/or 1>Cc>3E GP Poorly -graded gravel F sieve No. 4 sieve Gravels with Fines Fines classify as ML or MH GM G,H. Silty gravel more than 12% fines Fines Classify as CL or CH GC Clayey Gravel F,G,H Sands 50% or more Clean Sands Less Cu26 and 1<Cc≤3E SW Well -graded sand' coarse fraction than 5% fines passes No. 4 sieve Cu<6 and/or 1>Cc>3E SP Poorly -graded sand' Sands with Fines Fines classify as ML or MH SM Silty sand G'"'I more than 12% fines Fines classify as CL or CH SC Clayey sand Fine -Grained Soils Silts and Clays inorganic PI>7 and plots on or above "A" Line CL Lean clay w4M 50% or more passes Liquid Limit less the No. 200 sieve than 50 PI<4 or plots below "A" Line ML Silt K4r+i organic Liquid Limit - oven dried Organic clay 1M,N <0.75 OL Liquid Limit - not dried Organic silt KM,o Silts and Clays inorganic P1 plots on or above "A" Line CH Fat clay (,M Liquid Limit 50 or more PI plots below "A" Line MH Elastic Sift is4M organic Liquid Limit - oven dried Organic clay' "'" <0.75 OH Liquid Limit - not dried Organic slit K" 'o Highly organic soils Primarily organic matter, dark in color, and organic odor PT Peat ABased on the material passingthe 3 -In. (75 -mm) ECu=DSDjG Cc= (D'G)j 'if soil contains 15 to 29% plus No. 200, add "with sand" sieve DI, X D6 or "with gravel", whichever Is predominant. Elf field sample contained cobbles or boulders, or Lif soil contains t 30% plus No. 200 predominantly sand, both, add "with cobbles or boulders, or both" to add "sandy" to group name. group name. rlf soil contains 215% sand, add "with sand" to °Alf soil contains 230% plus No. 200 predominantly gravel, cGravels with 5 to 12% fines required dual symbols: Gif fines classify as CL -ML, use dual symbol GC- add "gravelly" to group name. GW-GM well graded gravel with sift CM, or SC-SM. "P124 and plots on or above "A" line. GW-GC well -graded gravel with clay "If fines are organic, add "with organic fines" to °PI54 or plots below "A" line. GP -GM poorly -graded gravel with sift group name 'PI plots on or above "A" line. GP -GC poorly -graded gravel with clay 'If soil contains >15% gravel, add "with gravel" to °PI plots below "A" line. °Sands with 5 to 12% fines require dual symbols: group name SW-SM well -graded sand with silt If Atterberg limits plots shaded area, soil Is a CL - SW -SC well -graded sand with day ML, Silty day SP-SM poorly graded sand with sift SP -SC poorly graded sand with day 60 50 a,40 W 30 u 20 10 0 0 10 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT (LL) For Classification of fine-grained soils and fine-grained fraction of coarse -grained soils. Equation of"A"-line J.-' Horizontal at P1=4 to LL=25.5 then P1-0.73(1.1-20) ," Equation of "U" -line Vertical at LL=16 to PI -7, then PI=0.9 (LL -8) � MHo OH ML OL t:artn t:ngineermg Consultants, LLL EARTH ENGINEERING CONSULTANTS, LLC t `� ..s�5:'sie � dam'-'x"'"'�•#iy u"�'�+°�°i§ M., y. d �, ` s�-b• u" �''°.�'- •"' "maw `! *�-. yy *`"g awrir .sad � #� Faa�n'tt'- �4 J '�i `h -. ..4,.- j eay i35 fi+a.r ' - ._..-,krr�w� �: _.__':.?. ._asJ* ?.': Kse,'°gJ, STILES MINE LA SALLE, COLORADO EEC PROJECT No. 1212092 OCTOBER 2021 ,.s^ter; Zhhq. STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-1 SHEET I OF 1 DATE: 10/27/2021 RIG TYPE: CMESS WATER DEPT{ FOREMAN: DG START DATE 10/27/2021 WHILE DRILLING T AUGER TYPE: 41/4" HSA FINISH DATE 10/2712021 11/9/2021 6.3' SPT HAMMER: AUTOMATIC SURFACE ELEV NIA SOIL DESCRIPTION TYPE D (FEET) N (BLOWSIF'T) QU (PSF) MC (%) DD (PCF) A -LIMITS -200 (%) SWELL LL P1 PRESSURE %G 500 PSF TOPSOIL AND VEGETATION SANDY LEAN CLAY (CL) brown _ 2 _ 6 8 10 _ 12 14 16 18 20 - -SS 22 24 26 28 30 32 _ 34 36 38 42 44 _ _ 46 _ _ 48 60 SAND WITH SILT AND GRAVEL (SW-SM) CS brown medium dense to dense SS SS SS SS more gravel SS SS 12 3.5 119.9 NL NP 1.3 16 11.7 17 13.2 67 13.9 NL NP 6.3 50 12.5 40 13.7 47 13.2 60/10" 12.5 CLAYSTONE gray moderately hard I SS 6013" 19.1 BOTTOM OF BORING DEPTH 45.5' Earth Enaineerina Consultants. LLC STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-2 SHEET 1 OF 1 DATE: 10/20/2021 RIG TYPE: CME66 WATER DEPTH FOREMAN: DG START DATE 10/20/2021 WHILE DRILLING 7' AUGER TYPE: 41/4" NSA FINISH DATE 10/20/2021 11/9/2021 6.4' SPT HAMMER: AUTOMATIC SURFACE ELEV NIA SOIL DESCRIPTION 0 N QU Mc DD A -LIMITS -200 SWELL TYPE (FEE (BLOWSIFT) (PSF) %) (PCF) LL PI (% PRESSURE % 601 PSF TOPSOIL AND VEGETATION _ _ SANDY LEAN CLAY (CL) 2 brown 4 SAND WITH SILT AND GRAVEL (SWLSM) CS _ _ 11 4.3 brown 6 loose to dense 8 10 SS 4 18.6 NL NP 0.6 12 14 SS 16 50 19.3 18 20 SS 63 9.8 22 24 SS 26 47 7.7 NL NP 3.4 28 30 SS 17 13.0 32 34 _ _ CLAYSTONE gray, moderately hard SS 36 _ 60/5" 4000 20.1 BOTTOM OF BORING DEPTH 35.5 38 40 42 44 46 48 60 Earth Ennineerina Consultants. LLC STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-3 SHEET 1 OF I DATE: 10/20/2021 RIG TYPE: CME56 WATER DEPTH FOREMAN: DG START DATE 10/20/2021 WHILE DRILLING 6' AUGER TYPE: 41/4" HSA FINISH DATE 10/20/2021 11/9/2021 6.3' SPT HAMMER: AUTOMATIC SURFACE ELEV N/A SOIL DESCRIPTION TYPE D (FEET) N (BLOWSffT) QU (PSF) MC (X) OD (PCF) A -LIMITS I -200 (%) SWELL LL PI PRESSURE I% 500 PSF TOPSOIL AND VEGETATION CLAYEY SAND (SC) brown 2 4 _ 6 8 10 12 14 16 18 20 22 24 26 28 30 - -SS 32 34 36 38 —— 40 42 44 46 48 50 SAND WITH SILT AND GRAVEL (SW-SM) CS dark brown to brown, rust loose to dense Sg SS Sg SS more gravel SS 16 2.7 113.5 3 8.2 66 14.3 50/11' 21.5 50/11' 9.3 56 19.8 60 18.7 CLAYSTONE gray moderately hard to hard SS 5013" 4500 26.1 BOTTOM OF BORING DEPTH 40.5' Earth Enaineerina Consultants. LLC STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-4 SHEET 1 OF 1 DATE: 10/27/2021 RIG TYPE: CME66 WATER DEPTH OREMAN: DG START DATE 10/27/2021 WHILE DRILLING 6.6' ,UGER TYPE: 41/4" HSA FINISH DATE 10/27/2021 11/9/2021 6.2' SPT HAMMER: AUTOMATIC SURFACE ELEV NIA SOIL DESCRIPTION TYPE 0 (FEET) N (BLOWSIFT) QU (PSF) Mc (%) DO (PCF) A-UMITS -200 (%) SWELL LL Fl PRESSURE % e 510 PSF TOPSOIL AND VEGETATION SANDY LEAN CLAY (CL) brown CS _ 2 4 _ _ 6 _ 8 10 12 14 16 18 20 _ 22 24 26 28 30 32 34 36 38 40 _ _ 42 _ 44 46 48 50 14 8000 14.7 114.4 30 13 65.4 SAND WITH SILT AND GRAVEL (SW-SM) brown SS loose to dense SS SS L.SS SS SS SS ss 14 7.6 6 8.0 16 14.4 63 12.6 67 13.7 59 9.2 5O18" 9.7 6018" 12.9 CLAYSTONE, gray, hard SS 50/0" 36.1 BOTTOM OF BORING DEPTH 43.5 Earth Enaineerina Consultants. LLC STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-5 SHEET 1 OF 1 DATE: 10/27/2021 RIG TYPE: CMES5 WATER DEPTH cOREMAN: DG START DATE 10/27/2021 WHILE DRILLING ►UGER TYPE: 4114" HSA FINISH DATE 10/27/2021 11/9/2021 5.3' SPT HAMMER: AUTOMATIC SURFACE ELEV N/A SOIL DESCRIPTION TYPE D (FEET) N (BLOWSIFT) QU (PSF) Mc (%) DD (PCF) A -LIMITS -200 (%) SWELL LL PI PRESSURE % e 500 PSF TOPSOIL AND VEGETATION CLAYEY SAND (SC) brown 2 _ _ 4 _ 6 _ 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 _ 40 42 44 46 48 60 CS SAND WITH SILT AND GRAVEL (SP-SM) brown loose to dense L.SS SS SS SS SS SS 8 9.4 8 16.6 10 54 14.6 66 12.9 40 9.7 55 20.3 CLAYSTONE gray, moderately hard SS 50/5" 5000 20.7 BOTTOM OF BORING DEPTH 40.5 Earth Enaineerina Consultants_ LLC STILES MINE La Salle, Colorado PROJECT NO: 1212092 LOG OF BORING B-6 DATE: 10/2712021 SHEET 1 OF 1 WATER DEPTH RIG TYPE: CME65 FOREMAN: DG START DATE 10/27/2021 WHILE DRILLING 6.6' AUGER TYPE: 41/4" HSA FINISH DATE 10/27/2021 11/9/2021 6.3' SPT HAMMER: AUTOMATIC SURFACE ELEV N/A SOIL DESCRIPTION TYPE 0 (FEET) N (BLOWSIFT) QU (PSF) MC (%) DD A.UMITS (PCF) LL P1 -200 (%) SWELL PRESSURE % e 50a PSF TOPSOIL AND VEGETATION CLAYEY SAND (SC) brown _ 2 4 _ 6 _ 8 10 12 14 16 18 20 _ - 22 24 26 28 30 32 34 36 38 40 42 _ 44 - 46 48 60 L.CS SAND WITH SILT AND GRAVEL (SP-SM) brown loose to dense SS SS SS SS SS apparent cobbles SS SS 9 10.9 NL NP 6.0 6 11.7 2 16.2 60 10.3 68 11.1 60 18.2 50 14.2 50 21.3 CLAYSTONE gray, moderately hard SS 60 9000+ 17.1 34 20 77.1 BOTTOM OF BORING DEPTH 44.5 Earth Enaineerina Cnn ullfantc- I I c EARTH ENGINEERING CONSULTANTS, LLC SUMMARY OF THE LABORATORY TEST RESULTS Project: Stiles Mine Project No.: 1212092 Location: La Salle, Colorado Date: November 2021 Washed Sieve Analysis (ASTM Specifications C117 and C136) Sieve No. Bl at 6-19' B2 at 2-20' B2 at 20-29' B3 at 6-26' B4 at 24-29' B5 at 24-39' B-6 at 24-39' B-1 + B4 B3+B5+B6 Overburden overburden 3" 100 100 100 100 100 100 100 100 100 2„ 100 100 100 100 100 100 100 100 100 1 1/2" 100 100 100 100 100 100 100 100 100 1" 100 99 100 100 100 100 100 100 100 3/4" 100 99 100 98 100 100 100 100 100 100 97 100 95 99 100 99 100 99 318„ 99 94 99 92 97 97 96 100 98 No.4 97 79 90 81 83 88 85 98 95 No. 8 89 58 74 62 60 73 67 95 92 No. 10 86 53 70 57 54 68 62 95 91 No. 16 74 40 56 44 39 56 48 92 87 No.30 55 25 37 30 25 40 31 89 81 No. 40 43 20 27 23 20 33 24 86 77 No.50 31 15 18 18 14 23 18 83 72 No.100 16 8 8 10 8 10 10 72 60 No. 200 10.0 5.4 4.3 6.9 5.0 6.4 6.9 59.1 40.8 Liquid Limit NL NL NL NL NL NL NL 37 27 Plastic Limit NP NP NP NP NP NP NP 17 17 PlAsfirifv indnc NP NP NP NP NP NP NP 20 10 USCS SW-SM SW-SM SP SW-SM SW-SM SP-SM SW-SM I SC CLIENT: PROJECT: PROJECT NO. SAMPLE LOCATION: SOIL CLASSIFICATION: DIRECT SHEAR TEST REPORT ASTM D3080 Asphalt Specialties Company, Inc. Stiles Mine 1212092 B-6 at 24-39' Brown Sand with Silt and Gravel NORMAL ULTIMATE SHEAR PEAK SHEAR MOISTURE DRY SAMPLE NO. STRESS STRESS STRESS CONTENT DENSITY (PSF) (PSF) (PSF) (%) (PCF) 1 1000 880 890 11.9 83.0 2 2000 1557 1557 12.0 82.2 3 3000 2125 2125 11.7 82.0 FRICTION ANGLE ($) COHESION (psf) PEAK ULTIMATE 31.7 31.9 289 275 Variation of Peak Stress with Normal Stress 5000 4000 ; 3000 2O00 1000 0 0 1000 2000 3000 4000 5000 Normal Stress (psf) Variation of Ultimate Stress with Normal Stress 5000 4000 3000 2000 1000 0 0 1000 2000 3000 4000 5000 Normal Stress (psf) \i EARTH ENGINEERING CONSULTANTS, LLC DIRECT SHEAR TEST REPORT ASTM D3080 CLIENT: Asphalt Specialties Company, Inc. PROJECT: Stiles Mine PROJECT NO. 1212092 SAMPLE LOCATION: B-1 at 6-16' SOIL CLASSIFICATION: Brown Sand with Silt and Gravel NORMAL ULTIMATE SHEAR PEAK SHEAR MOISTURE DRY SAMPLE NO. STRESS STRESS STRESS CONTENT DENSITY (PSF) (PSF) (PSF) (%) (PCF) 1 1000 491 513 12.4 79.0 2 2000 1184 1184 11.6 80.0 3 3000 1744 1744 11.0 81.0 FRICTION ANGLE (0) COHESION (psf) PEAK 30.1 0 ULTIMATE 30.0 0 Variation of Peak Stress with Normal Stress Variation of Ultimate Stress with Normal Stress 5000 5000 4000 4000 3000 3000 2000 co N 2000 1000 1000 0 0 1000 2000 3000 4000 5000 0 0 1000 2000 3000 4000 5000 Normal Stress (psf) Normal Stress (psf) Section 1. Slope stability analysis of non -critical regions (Figures 14) 150 — Permit Boundary 150 140 140 130 130 120 47 50 ft min - 120 100 100 ^ 225 90 90 Bo SW 53� t Too Drain �0 �, 50 §0 40 40 3® 30 20 20 14 10 0 0 10 20 3040 50 60 70 60 90 100 110 120 130 140 150 160 170 180 190 200 210220 230 240 250260 270 280 290 300 310 320 330 340 350 360 Distance{tt',) Figure 1: Geometry and subsurface section 150 Permit Boundary 150 140 140 130 1 130 120 1 50 ft min I20 110 110 100 100 2.25 w-� m -- 4qg - Toe Drain 1 s4 70 Pr - - J 70 50 ck 50 40 20 20 10 10 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 150 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 Distaace(f) Figure 2: Flow path and total head distribution in section Stiles Mine La Salle, Colorado EEC Project No. 1212092 150 Permit Boundary 150 140 140 130 130 120 �1I 50 ft min 1471 - 120 110 ® 1[ 110 100 100 225 80 7U / 70 50 50 40 40 30 30 20 20 1D 10 4111 II I I 111111 II II Ill 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 Distance(ft) Figure 3: Critical slip surface of static analysis at maximum slope 150 permit Boundary 150 140 140 130 130 120 50 ft Olin 1154 - 120 110 a-"` 110 100 fi .. *_,�^ - " 100 90 _ - _- -- -- __- -------_ 2.25 - 90 80 —-'--- t Toe D/rain so }-sw-%f 70 70 i" .__.::._.',1_1 50 40 .z _ 40 30 �.� 30 20 20 10 10 0 I I I I I I I I I I I I I 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 266 270280 290 300 310 320 330 340 350 360 Distance(ft) Figure 4: Critical slip surface of seismic analysis at maximum slope Stiles Mine La Salle, Colorado EEC Project No. 1212092 Section 2. Stone stability analysis of critical regions (Figures 5) 150 150 140 Permit Boundary — 140 130 130 120 2000 psf surcharge 5011 min ii 120 I10 ®----ems I10 100 3 100 90 1 90 sD Ssv-Sn Toe Drain 80 fad 60 50 50 40 40 30 30 20 20 10 .10 0 4. 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160170180190200210220230240.250260 270 280 290 300 310 320 330 340 350 360 Distance(ft) Figure 5: Geometry and subsurface section 150 150 140 Permit Boundary — 140 130 130 120 2000 psf surcharge 50 ft rain 120 110 ® b 110 100 3 100 — 30 30 20 20 . 10 10 0 liii 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 2I0 220 230 240 250 260 270 280 290 300 310 320 330 340.350 360 Distance(ft) Figure 6: Flow path. and total head distribution in section. Stiles Mine La Salle, Colorado EEC Project No. 1212092 150 150 140 Permit Boundary 140 130 11 - 130 120 Y 50 ft min i sy 120 2000 f surchar e 11@ 100 $0 � �i Ti3E Drain $Q SbS,S� � 50 5@ 40 40 30 30 20 20 10 10 I 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160170100190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 Distance(ft) Figure 7: Critical slip surface of static analysis at maximum slope 150 - 150 140 Permit Boundary 140 130j 130 120 50 ft mm 1315 120 110 2000 psf surcharge s 110 �,�, ,=;gym- 3_::i-- .IIF�. ' 90 $a TT:-_ 9 1 Tae Drain so 70 70 2 _ - 50 50 40 40 20 20 1@ 10 0 10 20 30 40 50 60 70 8090 100 110 120 130 140 150 160 170 180 190 200 210220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 Distance(ft) Figure 8: Critical slip surface of seismic analysis at maximum slope Stiles Mine La Salle, Colorado EEC Project No. 1212092 Hello