The URL can be used to link to this page

Browse Search

Home My WebLink About20043718.tiff Page 1 of 1 / Jacqueline Hatch From: Jacqueline Hatch • Sent: Tuesday, December 14, 2004 4:20 PM To: 'Lauren Light';_'mcain@agpros.com' Subject: CDOT Highland Farms Matt/Lauren, • Good afternoon, I just spoke with Gloria with CDOT and she mentioned that the access permit has not been finalized yet for • Highland Farms PUD. I will need a finalized copy of the access permit prior to recording as stated in note G The applicant shall provide the Department of Planning Services with evidence that an access permit is granted from the Colorado Department of Transportation. We did get an email from Gloria stating that you have applied for a permit and it was being processed but it has not been completed yet. Thanks, Jacqueline 4001-1-- 51 ( 12/14/2004 a /154 C Jacqueline Hatch From: Nice-Idler, Gloria [Gloria.Hice-Idler@DOT.STATE.CO.US] Sent: Tuesday, December 14, 2004 4:04 PM To: Matt Cain; Jacqueline Hatch Cc: Robert Bulthaup; Lauren Light Subject: RE: Highland Farms PUD MATT, Thank you for recapping our phone conversation. JACQUELINE, CDOT is statisfied that access has been made available to the ag lot in anticipation of the existing oil/gas access future removal. I would like to add a note to plat which states something to the effect that once drilling is over, the access will go away, and NO DIRECT ACCESS TO SH 52 WILL BE ALLOWED. Call me if you have any questions. Original Message From: Matt Cain [mailto:mcain@agpros.com] Sent: Tuesday, December 14, 2004 1:46 PM To: Hice-Idler, Gloria. Cc: Robert Bulthaup; Lauren Light Subject: FW: Highland Farms PUD Original Message From: rbulthaup@earthlink.net [mailto:rbulthaup@earthlink.net] Sent: Tuesday, December 14, 2004 12 :56 PM To: mcain@agpros.com Cc: rbulthaup@earthlink.net; bkelsey@peakcivil.com; jsbou76@aol.com Subject: Highland Farms PUD Per our conversation today, with Gloria Hice-Idler (CDOT) , Matt Cain (AgPRO) and Rob Bulthaup (Highland Farms) , CDOT is satisfied with the access for the Highland Farms PUD. In particular, acces to the acricultural lot will be via an easement from the end of Highland Lane to the south the the lot. Access for the Oil & Gas operations around the Brown 5-3 well will continue from Highway 52. This access will only be for the use of the Oil & Gas Operations. Once all oil and gas operations have concluded in the operations area served by the access, the access will be abandoned. A note to this effect will be included on the Final Plat Please consider this my approval of the change of zone request. CDOT still will be offered to comment at the Fianl Plat stage. 1 , \ Page 1 of 1 1; 4 acqueline Hatch From: Jacqueline Hatch Sent: Wednesday, November 24, 2004 7:39 AM To: 'Lauren Light' Subject: PZ-1045 Good Morning I'm looking over the mylars for PZ-1045 Highland Farms and have noted that the access on the far east is still being shown. My understanding from Gloria was that it was to be removed when the other access is developed. A note on the plat should do-it or you can get something from Gloria stating that both accesses are permitted. Have a great Thanksgiving (eat smart.. ohhhh s0000000 hard to do) Jacqueline 12/08/2004 Highland Acquisition Group Page 1 of 1 Jacqueline Hatch From: Hice-Idler, Gloria [Gloria.Nice-Idler@DOT.STATE.CO.US] Sent: Monday, November 01, 2004 8:27 AM To: Jacqueline Hatch Subject: Highland Acquisition Group Jacqueline, A representative for Mr. Bulthaup stopped by my office a couple of days ago with a new plan for the Highland Farms proposal (I think this is your PZ-1045). They show an access to the residential lots, with the existing oil/gas well access remaining. I think you and I discussed this, and I don't have a problem with them allowing this access to remain for an ag and/or oil/gas use. However, I am very concerned that should those uses ever go away, this property may want direct access to SH 52 and will claim that it is a"landlocked" parcel. I would encourage the County to either place a note on the plat saying that no other use of the existing access will be allowed except ag or oil/gas and/or require some kind of easement from the general street to serve different uses in the future. Mr. Bulthaup's rep indicated that these lots would NEVER be anything but ag. That may be the case, but I want to be prepared for ANY possibility. Thanks. Gloria Hice-Idler Access Manager CDOT Region 4 1420 2nd Street Greeley CO 80631 (970) 350-2148 • 11/01/2004 10/28/2004 23:14 9705359854 AGPR0:LANDPR0 PAGE 02/02 • NEW CONSOLIDATED LOWER BOULDER • RESERVOIR AND DITCFI COMPANY • • October 27,2004 • • Highland Acquisition Group, LLC do Robert Bulthaup 6297 South Potomac Way Centennial, CO 80111 Re: Highland Farms/New Consolidated Lower Boulder Reservoir and.Ditch Company Basement. Dear Mr. Bulthaup: • • I am responding to your letter dated October 20, 2004. The New Consolidated Lower Boulder Reservoir and Ditch Company("Company") does not object to designating the road on the eastern side of the ditch and within the Company's easement as an access route to the EnCana oil and gas well on the Highland Farms property and designating the road as an emergency access route. • . The Company is not giving up any of its casement rights by allowing this use. The Company retains all.of its rights to use the easement and road for operation,maintenance,repair and. replacement and.other appropriate purposes. Let me know if you have any questions or comments. • - Sincerely yours, • Alfred Sater,President New Consolidated Lower Boulder ' Reservoir and Ditch Company • cc: Dave Yardley, Secretary . . • Jeffrey J. Kahn, Counsel . • Tom Hazen,AgPro Page l of 1 • Jacqueline Hatch From: Hice-Idler, Gloria [Gloria..Nice-Idler@DOT.STATE.CO.US] Sent: Monday, October 18, 2004 11:53 AM To: Jacqueline Hatch Subject: RE: Highland Farms Subdivision PZ-1045 The plan I have shows the access with notes that they are going to relocate the oil well access road and a note that it is dirt road to be abandoned. That leads me to think I had told them that it needed to go away. I would be willing to allow it to remain to serve the oil well ONLY. Once it went away then the road would go away. But I think that they were told early in the process to remove it, and have, in fact, accommodated that happening. It should go away. From: Jacqueline Hatch [mailto:jhatch@co.weld.co.us] Sent: Monday, October 18, 2004 11:12 AM To: Hice-Idler,Gloria Subject: Highland Farms Subdivision PZ-1045 Gloria, Quick question. I am reviewing the design of the PZ-1045 and we have asked for an access permit onto Highway 52. They have included an email you sent me saying that you are working on it. One of my questions is that there'is an existing access on the east side of the site where there once was a mobile home. They are proposing on keeping that access for oil & gas, I don't remembering it connecting to an oil &gas site (I'm going to check). Can they keep that access if it does not connect to oil & gas? Can they keep it if it does connect to oil &gas? THANKS! Jacqueline • 10/18/2004 /1 4311 Highway 66, Suite 4 Longmont, CO 80504 Office (970) 535-9318 Metro (303) 485-7838 Fax: (970) 535-9854 1 I N LANDPROfessionals,LLC October 8, 2004 Dear Jacqueline Hatch: The attached documentation completes the conditions of approval required prior to recording the Highland Farms change of zone plat. I have outlined below how the conditions were addressed. 1A. A letter regarding the Sheriffs Office was provided to you 9/27/04. 1B. A letter regarding the Fire District is attached. 1C. The name"Highland Farms" has been approved by you. 1 D. Letters from the school district and the post office are attached. 1E. The proposed sign is included on the change of zone plat. 1 F. The ditch agreement was provided to you on 9/27/04. 1G. A letter from CDOT was provided to you on 9/27/04. ` 1H. The crossing agreement is covered in the Anadarko agreement that was • provided to you on 9/27/04. - The remainder of the conditions are included on the change of zone plat. Please contact me after you review the plat so we can get the mylar to you. Thank you. Sincerely, jactAAn Lauren Light LANDPROfessionals, LLC 4311 Hwy 66, Suite 4 Longmont, CO 80504 970-535-9318 303-485-7838 (metro) 303-870-0013 (cell) 970-535-9854 (fax) Ilight(d)agpros.com gouNT4 , QOUNTAIN VIEW FIRE PROTQTION DISTRICT e Administrative Office: 9119 County Line Road•Longmont, CO 80501 F (303) 772-0710 0.FAX(303) 651-7702 vies October 7,2004 Ms. Jacqueline Hatch Weld County Planning Department 918 101h Street Greeley, CO 80631 Dear Ms.Hatch: I have reviewed revised lot plan dated October 4, 2004 pertaining to the Highland Farms Subdivision (Case Number: PZ-1045). The Fire District is satisfied with the lot plan, proposed fire department access as well as the emergency access shown in the southwestern portion of the project. Proposed fire hydrant locations also meet the requirements of the Fire District. The Fire District reserves the right to make further comments as development proceeds. Nothing in this review is intended to authorize or approve of any aspect of this project that does not comply with all applicable codes and standards. We appreciate being involved in the planning process, should you have any questions,please contact me at(303)772-0710. Sincerely, LuAnn Penfold Fire Marshal LMP/lp cc: project file 'p10.07.04 Station 1 Station 2 Station 3 Station 4 Station 5 Station 6 Station 7 9119 Cnty Line Rd. 10971 WCR 13 P.O.Box 575 P.O.Box 11 10911 Dobbin Run 50 Bonanza Dr. P.O.Box 40. Longmont,CO Longmont,CO. 299 Palmer Ave. 8500 Niwot Road Lafayette,CO Erie,CO 100 So.Forest St. 80501 80504 Mead.CO 80542 Niwot,CO 80544 80026 80516 Dacono,CO 80514 St. Vrain Valley Scho&istrict RE-1J 395 South Pratt Parkway • Longmont • CO • 80501-6499 303-776-6200/449-4978 • FAX 303-682-7343 October 07, 2004 Mr. Jerry Bouldin 3733 Florentine Circle • Longmont, Colorado 80503 Subject: Highland Farms Development located South of and adjacent to Highway 52 and approximately 'A mile east of WCR 3. Lot B of RE-3105 being part of Section 5,T1N, R68W of the 6th P.M.,Weld County Colorado. e Dear Mr. Bouldin, Thank you, for sending me a copy of the plat for this development. After reviewing your plans it is my recommendation that the turn around be relocated where Highland Point and Highland Lane come together. Once this change is made, this plat would meet the requirements for the St. Vrain Valley School District. Although it is our intent to utilize this location as a bus stop for this development the St. Vrain Valley School District does reserve the right to relocate bus stops as the district deems necessary. Therefore, this particular development would not require the installation of a bus shelter. If I can be of further assistance please feel free to contact meat(303) 672-7253. Respectfully, to, Rick Ring Director of Custodial&Transportation Services "Excellence - Our Only Option" ® v To Whom It May Concern: I have reviewed the documents for the Highland Farms 9 lot PUD in Southwestern Weld County. The PUD is within the jurisdiction of the Erie Post Office.I find that the proposed mail box siting • within the PUD is satisfactory to the Erie Post Office. !` ////9/o___ Postmas er Date ® QD 4311 Highway 66,Suite 4 Longmont,CO 80504 Office: (970)535-9318 Fax: (970)535-9854 € -_ t� - LANDPROfessionals, LLC May 14,2004 Weld County Planning Department 1555 N. 17th Avenue Greeley, Colorado 80631 RE: Highland Farms PUD,Drainage Report To Whom It May Concern:, This Drainage Report for Highland Farms PUD was prepared by me, or under my direct supervision, in accordance with Weld County Subdivision Regulations, Section 24-7- 110. Sincerely, ---ztb1/4.\\ ,OO Reob, peas 1. 19 qv Eric W. Dunker,P.E. Environmental Engineer Colorado Registration No. 33915 Enclosure w _ i FINAL .. DRAINAGE REPORT FOR HIGHLAND FARMS PLANNED UNIT DEVELOPMENT Prepared for: Rob Bulthaup 6297 S. Potomac Way Centennial, CO 80111 Prepared by: LANDPROfessionals, LLC 4311 Hwy 66, Suite 4 Longmont, CO 80504 (970) 535-9318 Eric W. Dunker,P.E. Environmental Engineer May 14, 2004 Highland Farms PUD 05/14/04 TABLE OF CONTENTS PROPOSED PROJECT LOCATION AND DESCRIPTION 3 NEARBY DEVELOPMENT 3 CURRENT PROPERTY CONDITION AND HISTORIC DRAINAGE PATTERN 3 AREA DRAINAGE DESCRIPTION 3 OFF-SITE DRAINAGE.AFFECTING DEVELOPMENT 3 DRAINAGE DESIGN CONCEPT 4 • HISTORIC AND DEVELOPED FLOWS 4 • MAINTENANCE ACCESS g CONCLUSION S COMPLIANCE 5 APPENDIX A 7 • DRAINAGE PLAN MAP 7 • AREA DRAINAGE MAP 7 • FLOODPLAIN MAP 7 APPENDIX B 8 • RATIONAL METHOD CALCULATIONS 8 • DETENTION POND SIZING CALCULATIONS 8 APPENDIX C 9 • TABLES AND FIGURES UTILIZED FOR CALCULATIONS 9 • Final Drainage Report LANDPROfessionals, LLC Highland Farms PUD © Q 05/14/04 Proposed Project Location and Description The Highland Farms project is a proposed residential development as a Planned Unit Development (PUD). The property is located in the northwest one-quarter of section five, township one north, range sixty-eight west, of the sixth principle meridian, Weld County, Colorado. The property is located south of Highway 52,between Weld County Roads 3 and 5. Nearby Development Carmacar Ranchettes, an Erie annexation, is approximately '/4 mile to the east-southeast of the proposed development. Peaks at Mountain View, a 7-lot Minor Subdivision, is also south southeast of the proposed development less than '%mile. Current Property Condition and Historic Drainage Pattern The proposed development consists of approximately 57 acres. The property is currently zoned agriculture. It has historically been utilized for dry-land crop farming, mainly small grains or hay. The site drains primarily in three directions, east,west and north. The slope is fairly consistent through most of the site; ranging from 1.8 to 2.5 percent. The near-surface soil type on the property is predominantly Olney fine sandy loam, which is hydrologic group B. The Lower Boulder Ditch borders the site on the west. Area Drainage Description The area drainage is mostly to the northwest and Boulder Creek,which is located approximately one mile away. The development is protected from offsite drainage by the fact that it is higher than the surrounding ground and precipitation will tend to run off the site and not onto it. One area drainage is approximately one mile to the northeast of the development site and transports stormwater to the northwest and Boulder Creek. The second area drainage is approximately one-half mile to the south-southwest and also transports stormwater to the northwest. The confluence of Boulder Creek into St. Vrain Creek is approximately five miles north-northeast. Currently, runoff from the west side of Highland Farms PUD enters Lower Boulder Ditch. The east side of Highland Farms PUD drains off to the east and also makes its way into Lower Boulder Ditch. The north side of Highland Farms PUD drains north towards Highway 52 and also eventually into Lower Boulder Ditch. The proposed site is not within a 100-year floodplain. A floodplain exists along Boulder Creek and approaches within% mile of the site along the old Burlington Northern Railroad line to the west. Off-Site Drainage Affecting Development Off-site drainage will not affect the development as mentioned above. Final Drainage Report LANDPROfessionals, LLC 3 Highland Farms PUD . 05/14/04 Drainage Design Concept The Highland Farms PUD drainage concept is to utilize the historic pattern of drainage in three directions; west, east and north. One detention pond is planned on the west side. No detention is being planned for the east or north sides since development (houses,roads, etc.) only significantly affects the west side of the site. Included in Appendix A in this report are the following maps: • Drainage Plan Map The Drainage Plan Map demonstrates the stormwater drainage detention and control at Highland Farms PUD. Area Drainage Map This map is a USGS topographic map showing the location of Highland Farms PUD, surrounding topography, area drainage swales, and drainage characteristics. Floodplain Map This is the FEMA map locating flood zone areas. Note that no flood zone is located within 'A mile of the subject property. Historic and Developed Flows The 5-year historic, 100-year historic, 5-year developed, and 100-year developed flows were calculated for the development area utilizing the Rational Method. The rainfall intensities were determined from equation RA-3 of the Urban Drainage and Flood Control District (UDFCD) Criteria Manual utilizing the 1-hour point rainfall depth for the development area of 1.40 inches for the five-year storm and 2.70 inches for the 100-year storm (Figures RA-2 and RA-6 respectively). The runoff coefficients were determined utilizing equations RO-6 and RO-7 from the same manual and utilizing an area weighted calculation. The calculation tables are found in Appendix B and the reference figures and charts are located in Appendix C. The basins for the site have been modified from the previously submitted Sketch Plan Drainage Report for a more detailed analysis of the site. Basin#1 was separated into two basins, Basins #1A and#1B, because of the differing runoff transport modes. Basin#3 was separated into Basins#3 and#4 because of differing flow patterns found during final analysis. The 5-year and 100-year historic flows from Basin#2 are 7.06 and 60.17 cfs respectively. The 5-year.and 100-year developed flows from Basin#2 increase slightly due to relocation of existing dirt roads and the introduction of a portion of the building roof located in Lot 6 and 7. The 5-year and 100-year developed flows from Basin#2 are 7.09 and 60.28 cfs respectively. These differences are ignored because they represent insignificant differences in historic flows; 0.44% for the 5-year storm and 0.19%for the 100-year storm. The 5-year and 100-year historic flows from Basin#3 are 1.18 and 6.40 cfs respectively. The 5-year and 100-year developed flows from Basin#3 increase slightly due to relocation of existing dirt roads and the introduction of a portion of the building roof located in Lot 7. The 5-year and 100-year developed flows from Basin#3 are 1.24 and 6.50 cfs, respectively. These • Final Drainage Report LANDPROfessionals, LLC 4 Highland Farms PUD C + 05/14/04 differences are ignored because they represent insignificant differences in historic flows; 5.30% for the 5-year storm and 1.50% for the 100-year storm. The 5-year and 100-year historic flows from Basin#4 are 1.88 and 9.60 cfs respectively. The 5-year and 100-year developed flows from Basin#4 reduce slightly due to relocation of existing dirt roads within the site. The 5-year and 100-year developed flows from Basin#3 are 1.84 and 9.54 cfs, respectively. These differences are ignored because they represent insignificant differences in historic flows; 2.20%reduction for the 5-year storm and 0.65% reduction for the 100-year storm. Basin lA and Basin 1B are both tributary to Detention Basin#1. Runoff from both basins either sheet flows directly into this detention basin or is collected and transported via proposed swales,the major swale being located along the shared boundary of both basins. The 5-year and 100-year historic flows from Basin#1A are 4.30 and 36.37 cfs respectively. The developed flows from Basin#lA are 9.32 and 42.87 cfs respectively. These calculations represent an increase over historic flows of 116.7% for the 5-year storm and.17.9% for the 100- year storm. _ The 5-year and 100-year historic flows from Basin#1B are 5.26 and 44.45 cfs respectively. The developed flows from Basin#1B are 5.72 and 45.68 cfs respectively. These calculations represent an increase over historic flows of 8.7% for the 5-year storm and 2.8% for the 100- year storm. The release rate for proposed Detention Basin#1 is based on the historical 5-year storm peak runoff rate of 0.25 cfs/acre. This allows Detention Basin#1 to release at a rate of 10.00 cfs. Per the Modified FAA Method from UDFCD, the resulting required capacity for Detention Basin #1 is 3.48 acre-ft. Detention Basin#1 has a capacity of 4.12 acre-feet, exceeding the required 100-year developed storage capacity. The release from Detention Basin#1 is then conveyed to the eastern roadside ditch of Weld County Road 3 by underground pipe and released in a matter in which erosion and flooding will be controlled. Maintenance Access Maintenance access will be via the PUD open space and oil-field interior road. Conclusion Since Basins #2,#3, and#4 have no significant development planned in their respective drainage basin areas, no detention is planned for Basin#2, #3, or#4. A detention pond is planned for Basin#1A and#1B as shown on the Drainage Plan Map in Appendix A, and sized per the calculations in Appendix B. Detention Basin#1 releases to the eastern roadside ditch of County Road 3 and at the allowable rate of 0.25 cfs per acre. Compliance The planned Highland Farms PUD site does not lie within a 100-year floodplain. Therefore it is not required to meet any FEMA flood hazard regulations. Final Drainage Report LANDPROfessionals, LLC 5 Highland Farms PUD ® 05/]4/04 This report complies with Weld County Code 24-7-120/30, Storm Drainage Requirements. The Highland Farms PUD does not lie within the South Weld I-25 Corridor Master Drainage Plan area. Final Drainage Report LANDPROfessionals, LLC 6 Highland Farms PUD ® ® 05/14/04 Appendix A • Drainage Plan Map • Area Drainage Map • Floodplain Map • Outlet Structure Details Final Drainage Report LANDPROfessionals, LLC 7 • i 1 I .. 7 �\ \ \_mil�� . --......°D....... _ • _`- BOULDER CO . - Oenlrasr1 �� u WELD CO l':-. ."--7-7, :_.i 7t 120.-0.-%--2 --- ='`"y ' -Y -`Yw • - I t , • ,. ' ' .camoo\ \ y \ No F. /-cjN--:-Th'' :‘*-- • ii, . I A V • 4 ° WCR 3 cr - -----( t--7--.V.-=1-2 - - —- . 9-z.--- ___ . i._I -..!! !,-;!••:-_-_---•:_1[,,,T2,_!_ .r____P., IL\ ' �� ` N ( A _________--\\ i e(/ i z \ .�, WCR•3 25 { y � I , o , e• c�• �A ��`I < f �.. \\'',-,!-\\° o a ,= �� A��•' I,, �, 2 it — m a'.2\k. `?�\\\\ o ; Lo ,\ cS) : - C � a -/, i . _\I ic, , i1 •• 1•. •' •1' A _ 741Np `off WCR 5 ` , /b, p • �� Ij _ a 1 i� t /� ( •.. lll ` G no , 0 I \ii--) _jj/.. ) 1 0 , ,N) ' � ' c irl i! • o , __ . Z r 1;: • 11 0 I 11 m, vx Cn ( n o DATe I.ANDPROfessionals, LLC HIGHLAND ESTATES PUD 12/11/03 LANDpRo ADArchitects-Planners-Engineers AREA DRAINAGE MAP AD_ v) oN ALL hVVY JL 4iN O _r.,........„. .._//./..22z.,..,.,......,........1 [�1.it 0 .wl.rum.ouo _ 4PROSIN.•}ESGLEINFEET EL • a I..l} '� Q Z • HIGHLAND III Q MAitONA 8900 INS0IAACE PNO9NIY • LE -I O s — p a, 6 ESTATES PUD FIRM a °o °&p J J .. ��' FLOOD INSURANCE RATE MAP 2 IL WELD COUNTY, • 2 ._ .._............ .... ....... .. _..._. .... .. I. COLORADO 4' (UNINCORPORATED AREAS) 0 CC . . • .. WCR 12 • • l ' PANEL 960 OF 1(95 .• W ZONE p I1a 0 pi • COMMUNITY-PANEL NUMBER •- 1 • O dyrt 080268 09600 • W ril Z� MM.REVISED: BFI Si 7 B. .. � &•z\ SEPTEMBER 18,1990 O Y a 0 z 4 0 DETENTION BASIN # 1 OUTFALL DETAILS 11-1 PROVIDE REMOVABLE TRASHRACK OVER OUTLET J (MIN. AREA 4.8 sq.ft., i.e., 2.25'x2.25'), FQ- MAX. CLEAR SPACE = 5.25° �� PROVIDE TYPE M OR BURIED TYPE L RIPRAP ON SIDES & FRONT OF OUTLET w 3:1 MINIMUM SLOPE TO CONTROL LOCAL EROSION O J I, _ 24' CMP _ _ o 0 li_ ii 2 Z O .-.' g CONCRETE �i�i��rrrwrr��r = no Q TRICKLE CHANNEL �'�t•///��t o= Z Z LOCALLY 0 STEEPENED RIPRAP FOR SLOPE EMERGENCY SPILLWAY Z Lu EMBANKMENT CREST F- CONCRETE WEIR (lia = 5001.00 0 STRUCTURE 0 a a) EMERGENCY SPILLWAY CREST _1 1 if 0 100 YEAR W.S. ELEV. = 5000.00 4- o a rRASHRACK III=III-IIIIII I I ITI i ! N , 0 _ '-I w 01 AT OUTLET POND i-;: ----- I=I I r _: :_ ^: �• Imo- 4995 24' CCMP 44 r—iii— = -- ___ 1 DEPRESS INLET 6° Q TO PREVENT BACKUP 5-YEAR ORIFICE PLATE, 1.07' 0 OPENING O OF LOW FLOWS (INVERT ELEV. = 4995.00) D C NOTE: TRASH RACK & 3/8° STEEL ORIFICE PLATE TO BE HOT DIP A GALVANIZED ANCHOR WITH 3/8° DIA. X 4 1/2" STAINLESS STEEL BOLTS. IMBED BOLTS 3' INTO CONCRETE. O NOT TO SCALE A1 Highland Farms PUD 05/14/04 Appendix B • Rational Method Calculations • Detention Pond Sizing Calculations • Swale Design Calculations • Outlet Orifice Plate Design Calculations • Pipe Capacity Design Calculations Final Drainage Report LANDPROfessionals, LLC 8 • Highland Farms PUD-Historic Drainage Impervious% :F.xi__SF_ rma.•earcaaa,.raneia Basin#lb Impervious Percenta•e aiWYlfi.g 7[a h*,ovSIIII Basin#3 Impervious Percentage Basin#4 Impervious Percentage Decimal Decimal Decimal Decimal Decimal Land Use Acres Impervious A•PI Land Use Acres Impervious A'PI Land Use Acres Im•ervious A'PI Land Use Acres Impervious A•PI Land Use Acres Impervious A 12311 17.15 - 0.02 0.34 Ag Land 22.30 0.02 0.45 parr 48,30 0.02 0.97 Ag Land 3.23 0.02 0.06 Ag Lend . 4.23 0.02 _ . u' Dirt Roads 0.25 0.40 0.10 Dirt Roads 0.28 0.40 0.11 Dirt Roads 0.30 CAD 0.12 Dirt Roads 0.04 0.40 0.02 Dirt Roads 0.17 0.40 0.07 -�. .IMI - 0.90 Buildings 0.02 0.9D 0.02N 0.90 - Buildings - 0.90 - Buildings 0.05 0.90 0.05 - 1.00 - Paved Areas - 1.00 - 111 I I;=:. 1.00 - Paved Ness 0.33 1.00 0.33 Paved Areas 0.45 1.00 0.45 Totals 17.40 acres 0.44 Totals 22.60 acres 0.58 Totals 48,60 acres 1.09 Totals 3.60 acres 0.41 Totals 4.90 acres 0.65 0.0272 mi2 0.0353 mis 0.0759 mia 0.0056 mil 0.0077 mti - Wei.htedIm•erviousPercenta•e= 2.55% Weighted impervious Percentage= 2.55% Wei•hied lm•ervious Percentage= 2.23% Weighted Impervious Percentage= 11.41% Weighted Impervious Percentage= 13.22% Basin Ala Assumptions: Basin#1 b Assumptions: Basin#2 Assumptions: Basin#3 Assumptions: Basin#3 Assumptions: Dirt Roads:11,090 ftt-Existing oil-field road Did Roads:12,315 ft2-Existing oil-field road i Dirt Roads:Oil-field road Dirt Roads:1,800 fl of oil-field road Did Roads:7,500 ft of driveway to trailer ditch along ditch Houses&Buildings:1,000 ft2 minimal amount Houses&Buildings:One trailer house with dings:No buildings in basin 2,150 to of oil-field tanks and sheds sheds( ) Paved Roads:No pavement within the basin Paved Roads:No pavement within the basin Paved Roads:No paved roads in basin Paved Roads:14,200 ft'-South half of Hwy 52 Paved Roads:19,500 ft'-South half of Hwy 52 C • • • LANDPRDfessionals,LLC 1 of 1 - - Eric W.Dunker,P.E. Highland Farms PUD-Future Drainage Impervious% Basin#1 a Impervious Percents a Basin#lb Impervious Percentage Basin#2 Impervious Percentage Basin#3 Impervious Percentage Basin#4 Impervious Percentage Decimal Decimal Decimal Decimal Decimal Land Use Acres Impervious A•PI Land Use Acres Impervious A•PI Land Use Acres Impervious A'PI Land Use Acres Impervious A•PI Land Use Acres Impervious A ' Ag Land 14.44 0.02 0.29 Ag Land 22.05 0.02 0.44 Aq Land. 48.30 0.02 0.97 Ag Land 3.19 0.02 0.06 Ag Land 4.34 0.02 Did Roads 0.3D 0.40 '0.12 Did Roads 0.28 0.40 0.11 Dirt Roads 0.20 0.40 0.08 Dirt Roads 0.03 0.40 0.01 Dirt Roads 0.04 0.40 0.02 Buildings 0.88 0.90 0.77 Buildings 0.11 0.9D 0.10 Buildings 0.10 0.90 0.09 Buildings 0.05 0.90 0.05 Buildings - 0.90 - Paved Areas 1.80 1.00 1.80 Paved Areas 0.16 1,00 0.16 Paved Areas - 1.00 - Paved Areas 0.33 1.00 0.33 Paved Areas 0.52 1.00 052 Totals 17.40 acres 2.98 Totals 22.60 acres 0.81 Totals - 48.60 acres 1.14 Totals 3.60 acres 0.45 Totals 4.90 acres 0.62 0.0272 mil 0.0353 me 0.0759 mi' 0.0056 me 0.0077 mil • Weighted Impervious Percentage= 17.14% Weighted Impervious Percentage= 3.59% Weighted Impervious Percentage= 2.34% Weighted Impervious Percentage= 12.52% Weighted Impervious Percentage= 12.71% Basin#1 Development Assumptions: Basin#1 Development Assumptions: Basin#2 Development Assumptions: Basin#3 Development Assumptions: Basin#3 Development Assumptions: Dirt Roads:10700112-Existing oil-field road Did Roads:12,315 fl2-Existing oil-field road Dirt Roads:8,690 ft'of oil-field road-Relocated Did Roads:1.275 ft2 of oil-field road-Relocated Dirt Roads:1,595 ft2 of oil-field road-Relocated along ditch.2300112 access road along ditch after development after development after development Houses&Buildings:4.000 fe House&1,000 R' Houses&Buildings:4,000 re House&1,000 ft' Houses&Buildings:4.000 ft2 House&1,000 ft2 1 2 Out-Bltlgs per Lot(7.5 Lots with Bldg Out-Bldgs per Lot(1 Lot with Bldg Possibilities in Out-Bltlgs per Lot(Pad of Lot#8 and#9 in Houses 8 Buildings:4.000 R House 81,000 ft Houses&Buildings:No Buildings in basin Out-Bltlgs per Lot(Part of Lot#9 iOBasin) Possibilities in Basin) Basin) Basin)Paved Roads:42,321 ft2 o300'x 15'Paved Drivewayf pear Lot(8 Lots with Paved Roads: 300'x 15'Paved Driveway •Ropet Roads:No paved roads in basin Paved Roads:14,200 ft2-South half of H 52 Paved Roads:3.325 Rs of Entry Road&South Driveways in Basin) Paved LANDPROfessionals,LLC -1 of 1 - Eric W.Dunker,P.E. • Drainage Calculations' . •Highland Farms PUD • Historic Flows(BASIN#1e) Developed Flows(BASIN#1a) Area Weighting for Runoff Coefficient(Basin#1a) Area Weighting for Runoff Coefficient(Basin#1a) Based on Runoff Coefficient estimating equation published by UNenes,sl.at.(1990)6 WE)'liege) Based on Runoff Coefficient estimating equation published by Urbonos.etol.(1990)&WEF(1998) Basic equation for NRCS Sail Types C&D: Bask equation for NRCS Sell Types C&D: co,-A,,4(nK<M•(s-0.7116•v'4.0.774•i 10.011 Co,=A'an,+44.11510/-0.7tNN'4.0.714•1.Oh) Bask equation for NRCS Soil TvpeA' Basic equation for ARCS Soil Tyne A: C,=A,a 1131W-1.41.12.1.135.1-1.151 N WWII ow R.N.for C,>0 C,=R,1 a 11.31 a;'-1.119-.1.1)54-0.121 in Mdeb usetelue far C,,>It Basic equation for NRCS Soil Type IS: Basic equation for NRCS Soil Type B: C,e IC,4 C,n)/3 In Spirt /./100.imperviousness ratio I.=watershed Imperviousness in percent cu-IC.,+C,0)/2 in wih:i 1,1100,imperviousness ratio I. =watershed imperviousness in percent (',,=Ru,ufcieernnl 4v MRCS Soil T11e A A',,=Comclinn(why for C,when uk nano wum(NNW iafn'-'uailmn 2yc'n Ca=RunofClMfcinn fin)(RCS Soil Type A K.=C'.mmlinn tome fur C.Wien the Rom(mom paled i.pardul 3yian C.n=Runoff C,uevimn Ow 118.8 Soil Tn.Cmsl0 A',n=e.euliun rse fn Co.(Wen llmn..ml return(wind ivyumray.,2-y"'n en,-8.n.RC'.crrie¢Nfor NM'Sinil l'ypca C mall) ko.=Cunmtinn lao,etirit„nbetulwunan Nikon mi"Ihpaleee12qum ,, Valois of Cemcoot,Factors 4na 4) Valucsnf errection Factors 45,.A. NRCS Storm Rnnm_geri,xl NR('S Storm Return Period Soil Types 2-er 5-vr Ill-vr 25-or r 511-sr I00-or Soil noes 2.vr 5-vr Ill-er 25-ww 5(1-vr 1INI-vr C&0 0.D(1 I41.11>140.11(141.10.1.111 II 1412X•/.X11 141.33R4O40(141.30.l WJ6( ('&0 11.1111 141.1U•IN111I J41.IMI40211 I412i•/HI.131 141.23.1$0.401 I 41.31'144,4R( A 0.110 Hie:'14I.INI 141,14.1.11.171 1411'4•/.11331 141._•/.11.2$1 I41_5•/40321 A 11.1111 I'r101"(40.441 IL.II•1442171 Iltl`1.1411.21I 14122•INUM 1a25'I.U.121 Area %iaperalsis NRCS Soil Calculated Calculated Calculated Calculated Area %incomerz NRCS Soil Calculated Calculated Calculated Calculated Ca•A Caa C1m.A Sub-Area# Cs C.•A Ct. C','A Sub.Area# Cs (Acres) 0ealwl Type Coy. Ca1sn Cagy. C0.5mn (Acres) 0.1714 Type .y, Ccoy, Ca3mr C0.5yn _ 1 174w«t:'0D255 r. '"B� - 0.00 0.17 0.22 0.51 0.08 1.45 037 6.36 1 .>47A +,.,.1714:' '.:8nf: 0.12 0.25 0.32 0.55 0.18 315 0.43 7.51 0.15 0.20 0.50 0.00 0.00 0.00 0.00 2 >'0*.h v^0:; :1041142 0.00 0.15 0.20 050 0.00 0.00 000 DOD 3 _ '4„=+' •', 0.' -,'0:"' 0.00 0.15 0.20 0.50 0.00 000 0.00 3-X 0.00 3 05 -0:1;;3i 0`.. 0.00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 0.15 020 0.50 0.00 000 000 0.00 4 ` '.es4Q . r0 ri.'11 .+'-z0,::r,: 0.00 0.15 020 0.50 0.00 0.00 000 0.00 D15 020 0.50 0.00 . 0.00 0.00 5 "'2.'0. 0 Sum: 17.4 Sum: 1.45 Sum: 6.36 Sum: 17.4 - e,.Ory`r 0.00 0.15 0.20 0.50 0,00 0.00 000 0.00 Sum: 3.15 Sum: ].51 IAreowesbidnlndl Glattlenb Ours Mourn A) (Weighted Ge 0.083 'Weighted Can 0.389 NeayhinMedRanoOCeenernM1lsum Meow AI 'Weighted cw 0.181 (Weighted Om 0.432 i I Proposed Development Area(Highland Farms PUD)Basin#1a I Proposed Development Area(Highland Farms PUD)Basin#la 5-year historic 100-year historic 5-year developed . 100-year developed — Time of Concentration Time of Concentration Time of Concentration lime of Concentration Initial Time 'mum WVfa'Rural 6]C1Y(ortrbanBasins Initial Time(Maximum YO fat Rural 8300'Iw Urban Basins) Initial Time(Maximum 5000 for Pura!6300'for UrbanBasins) Initial ime(Maximum S1N1'(or Rural 6 300'for Urban eaSn Ce art Distance Slope(%) ti(min Ca Distance Slope(%) ti(min C. Distance - Slope(%) ti(min C. Distance Slope(%) - 6(min 101 Iftl WI 0.083 -p00`w: ,:._,3:6., 26.70 0083 500 3.6 26.70 0181 ;'.500'.-31o214$3'.-.181822 '21311.- 23.71 0.181 500 3.8 23.71 Travel Time - Travel Time Travel Time Travel Time c,etlues:Heavy meedwas:wiocineirto Short peaaae&1aw1;7'NeuMbere C,values'Hearyrtead 25:TNog.feM,5:Smnpasaoe&lams;]:Needy bare C.values:Heavy mewkwa5:Tinage/Yeld;5.Stuy1pasture alarm;7:Newly bare c.vtlues,Heavy random-25:TNegettdd5 Shwa pasty.&lsIRTINNlbate gee.d.le Glbsedeuelvmy',i5:Paved wens 6[hallow paved ewalea,20 pamgl6.Grasedwateray;15:Paved areas&shallow payed awales220 woma16Gasedwlnewz15:Paved yeas 6W0vw payedamleti2o gnuld:i5 GrasedwCemayl5:Paved area&shallow pavedar/W7n r;stance 51 e(%) C, la,m Vol city traveltim Distance Slope(%) C, (from Velocity travel time Distance Slope(%) C, (barn Velocity travel time Distance Slope(%) C. Oom Velocity travel time fl abew bun fUeec i IR) move level (Wsee) (mini (fl) abr..I.),e) ffilsecl (mini (R) pane,table) Offset) (min) :14 T,,..2•„:' 12 1.71 7.= 814 2,0 12 1.70 7.99 ...l±fl1l..025 .k^=M•e- j)0 126 10.07 825 1,6 10 1.28 1087 'sin type Urban T al time lmini 34. Basin type: Urban Total lime(mini 34.69 Basin type Urban Total lime(min) 34.58 Basin type: Urban Total lime(min) 34,5 Tm Check( U an Catchments Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments Ilewih time speck ilutaol•ty Jc= 17.30 Wan time chat (muso)ao) T. 17.30 tag time check(,Rapt•IN 'Te= 17.38 tgUg3lh time check(lutml•Ivy Ta= 17.3 1314 17.3' 1314 17.30 1325 17.36 1325 17.36 •'{1-hour apt rainfall ath(inches))= 14 P1(Wino point rainfall depth(inches))= 2..9.211 P,(1hour point rainfall depth(inches))= 1.40 P1{1-hour point rainfall depth(Inches))= 270 IFpee RA 2,07 GI (Fpse RA$uorco) (Figure RA-2,UDFCDI (RoweRW Ulwc0) Intensity lE uati n A-3 lAFG)= 2.91 irlRlr Intensity(Equation RA-3 UDFCDI= 5.72 in/hr Intensity(Equation RA-3 UDFCD)= 2.96 irdhr Intensity(Equation RA-3 UDFCD)=. 5.71 bite Rational Meth FI w Rational Method Flows Rational Method Flows Rational Method Flows Diets) C factor T.(min) I(inter) A(acres) Clefs) C factor T.(min) I(tn#tr) A(acres) Olds) C factor T.(min) I(Inthr) A(acres) D(ets) C(actor T.(min) I(iNhr) A(acres) 4.30 0.083 17.30 2.97 17.4 36.37 0.385 17.30 5.72 17.4 9.32 0.181 17.38 2.96 17.4 42.87 0.432 .17.38 5.71 17.4 0.247 ci.per area allowable discharge rata ' 'LANDPROfessionals,LLC - 1 of 5 Eric W.Dunker,P.E. Drainage Calculations - Highland Farms PUD . • Historic Flows(BASIN#1b) Developed Flows(BASIN#10)(including o#ste run-on) Area Weighting for Runoff Coefficient(Basin 01b) Area Weighting for Runoff Coefficient(Basin#lb)(including on-rte run-on) Sub-Area# Area %Impervious NRCS Soil Calculated Calculated Calculated Calculated Ca Cs•A C. Cfra•A Sub-Area 0 Area %Impervious NRCS Soil Calculated Calculated Calculated Calculated Cs Cs•A Coo C,ra•, (Acres) (dedmat) Type Co,, Caper, C0.tmr, Corso* (Acres) (decimal) Type Carr, Cca-s,, Cr-coq, Coo., 0.17 . 0.22 0.51 0.08 1.88 0.37 626 1 . '228"- ' :e.0359 -' B .a= 0.01 0.17 0.23 0.51 0.09 2.03 0.37 8.39 2 0.00 0.15 020 0.50 0.00 0.00 0.00 0.00 2 • • 0.00 0.15 0.20 0.50 0.00 - 0.00 0.0 0.00 1:. -.. .. -:- 3 - "'*4:1 0.00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 3 ?• . "'t 0.00 0.15 0.20 050 0.00 0.00 000 0.00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 4 e - - '•. 0.00 0.15 0.20 050 000 0.00 000 0.00 0.15 0.20 0.50 000 0.00 0.00 0.00 5 `n „ ,. . o.00 0.15 0.20 0.50o.00 0.00 0.00 0.00 Sum: 22.6 Sum: 1.88 Sum: 8.26 Sum: 22.6 Sum: 2.03 Sum: 8.39 'Area-Weighted Runoff Coefficients lam cNaneA) I Weighted Cs= 0.083 IWeiehted 01w 0.355 I Neawelohled Ru=feeelieens(sum CA/sum A) (Weighted Cs= 0.090 'Weighted Ca® 0.371 I Proposed Development Area(Highland Farms PUD)Basin#1b I Proposed Development Area(Highland Farms PUD)Basin#lb pndudlnao#sdenman) 5-year historic 100-year historic 5.year developed 100-year developed Time of Concentration Time of Concentration Time of Concentration Time of Concentration Initial Time(Maximum 500'Ior Rural_63Mfor Urban Basins) Initial Time(Maximum 5N'M-Real 6]M'for Ulan navns) Initial Time(Maeimum 5COrn Rural&300'M Urban Basins) Initial lime(Maximum GOO'far Rural 8300'W Urban Basins) Cs Distance Slope(%) 0(min Ca Distance Slope(%) tl(min C, Distance Slope(%) ti(min Cr, Distance Slope(oh) ti(min (RI (RI fft) l(dl 0.083 500 24 30.56 0090 „i-'-l. 500 Y ".t '^: . 2Ai 30.37 0.090 500 24 30.37 Travel Time Travel Time Travel Time Travel Time C,valuer Hoary,roW 3.5:Teaselbeld:5'shed pasture a laaru;):Nearly bare C.values:Heavy,mtla;2..5Y0eaottwldk Shan pasture 6 laws,]:Nearly mat C..values:Heavy neado,e2.5:]IAaaMfe14;5:SMt pasture 6 lams]:Neely bare C.values:Hem rresyss2.t:Tllhselseld5:Short Padwe 81aww7.Neap hate pstsAfa.Gresedntle,rray;l5:Paved seas 6 shdlonpzvedseake20 pm=616.Grassed waterway:15:Paved eo®A Hallow paved.rdea:2a Vound.lIt Grassed wtlnvey;l5:Paved areas 8 sha0eepavedswalea',2o pamd.13:Gr.sedwmevay,5S:Paved veer&shallow pawed'sda:20 Distance Slope(Ye) C, (tram Velocity travel time Distance Slope(%) C, Isom Velocity travel time Distance Slope(%) C, Nora Velocity travel time Distance Slope(%) C, (mm Velocity travel time (Rl there lame) IB/secl Imin) (fit agave table) IfOseel (mint (ft) abaeeme) Mood (mini fel ore ubi=) Ift/secl (min ,1"`=1,210! r 23 l->'._?="12' 1.62 11.08 1,210 2.3 12 1.62 11.08 c 1,11r5•,,,.r. p ,23 •="-+ 12: 182 10.39 1,135 2.3 12 1.82 10.39 Basin type: Urban Total time(min) 41.64 Basin type: Urban Total time(min) 41.64 Basin type: Urban Total time(min) 40.77 Basin type: Urban - Total time(min) 40.77 Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments tottot l lime check(rum).1N To= 19.50 tenet l time check nulool•1N T,= 19.50 tot lent time check((UNA•1N Te= 19.08 tenet l time check(luteal•1N To= 19.08 1710 19.50 1710 19.50 1635 19.08 1635 19.08 P,(1-hour point rainfall depth(inches))= ,°?„140 : P,(1-hour point rainfall depth(inches))= X2.] $ P5(1-hour point rainfall depth(inches))= 1.40 P,(1-hour point rainfall depth(inches))= 270 moue M.2.UDFC01 (Flee.RAB.UCFCN (Apra RA.2,UDFtm nave Rho UNFCGI Intensity(Equation RA-3 UDFCDI= 2.79 In/Iv Intensity(Equation RA-3.UDFCD)9 5.38 in/hr Intensity(Equation RA-3.LDFCD)= 2.82 irMr Intensity(Equation RA-3 UDFCO)= 5.440yhr Rational Method Flows Rational Method Flows Rational Method Flows Rational Method Flows Diets) C factor Te(min) I(in/hr) A(acres) Olds) C factor Te(min) I(infhr) A(acres) O(ers) C factor T;(min) I(infhr) A(acres) 0(de) C rector Te(min) I(liter) A(a 5.26 0.083 19.50 2.79 22.6 44.45 0.365 19.5D 5.38 22.6 5,72 0.090 19.08 2.82 22.6 45.68 0.371 19.08 5.44 22.6 e..Ev ez par acre allowable msclurp.ram LANDPROfessionals,LLC C - 2 of 5 Eric W.Dunker,P.E. Drainage Calculations Highland Farms PUD Historic Flows(BASIN#2)(inswing of-sitemawn) Developed Flows(BASIN#2)(including oaslrenman) Area Weighting for Runoff Coefficient(Basin#2)(ur/wing arceile ninon) Area Weighting for Runoff Coefficient(Basin#2)(including oRsdenmon) Sub-Area# Area %Impervious MRCS Soil Calculated Calculated Calculated Calculated Co Co•A Cie Cie'A Sub-Area I Area %Leven NRCS Soil Calculated Calculated Calculated Calculated Co Co•A Coos ' Ciw•/ (Acres) (decimal) Type Cwsr, r'._, C.A.', Cm.,,,, (Acres) (dedu ) Type Co,,„ Crow. Ca.lnr Cceioo„ 1 46.6,r-':. 00223+:. 'ri.Br.'t< 0.00 016 0.22 0.51 0.08 4.00 0.36 17.6] 1 98.6 e: '0.0234+ B'�k^ 000 0.17 0.22 0.51 008 4.02 0.36 7.70 2 r •. s 0.00 0.15 0.20 ' 0.50 0.00 0.00 0.00 0.00 2 - 0.00 0.15 0.20 0.50 0.00 0.00 0.00 1.00 3 0.00 0.15 D.20 0.50 0.00 0.00 0.00 0.00 0.15 0.20 0.50 0.00 0.0D 000 0.00 0.15 0.20 0.50 000 0.0D 0.00 0.00 4 - - - 0.00 015 0.20 0.50 0.00 0.00 0.00 0.00 5 r. 0.00 015 0.20 0.50 0.00 0.00 0.00 0.00 5 a.- 0.00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 Sum: 48.8 Sum: 4.00 Sum: 17.67 Sum: •-46.6 Sum: 4.02 Sum: 17.70 IPeee'Weisted Rwoa coefficients(awn Warm Al 'Weighted Cr? 0.062 IweIghte4 Cum 0264 I kenNaghled Runoff Coefficients lsancMnnA) (Weighted C5= 0.083 (weighted C's 0.364 I Proposed Development Area(Highland Farms PUD)Basin#2(including otoiemn-on) . I I .Proposed Development Area(Highland Farms PUD)Basin 1/2(including of-site ninon) I 5-year historic 100-year historic 5-year developed 100-year developed Time of Concentration Time of Concentration Time of Concentration Time of Concentration Initial Time(Maximum 600'for Rural 63el for Urban Basin) Initial Time(Maximum 5W'kr Rural 8300 lm Urban Basins) Initial Time(maximum 5rr tor Ta9&3lPra•Urban Basins) Initial Time(Maximum 5IXY for Rural&30M in Urban Basra) C. Distance Slope(%) 0(min Cp Distance Slope(%) 0(min Cs Distance Slope(%) ti(min C. Distance Slope(%) 0(min Ifti Inv (ft) (RI 29.25 0.062 418 2.1 29.25 • 29.24 0.063 416 2.1 29.24 Travel Time Travel Time Travel Time Travel Time C.%Jon'Ham meadow..25:TNage?e145:sien arrange a lawns:]:Neatly bare C.00iue,:Heavy rreadw;25:TNapeMel4.S sherd posture&lawm,7:Nearly bare C,oluee Heavy meadaw:2.5:TIIIegeled0 Sled pasture.1lwre;]:Newly burn c.vWuax Heavy meadow/5:TWase/06%5:shod pasture&Iam.T.New%bate gro1e4 la Cwnsedwme 15:Paved enema ahalwPavad ewales30 pmm4ln Grassedvtleneay:la:Paved mess a{NAM pared swts:20 "ow;I%o,enedwatersa%15:Pawed ama shallow paved svdes:2a poundlO..Wowed waterway-OS:Paved woes&µelan pa'Mwhl20 Distance Slope(%) C. (Iwo, Velocity travel time Distance Slope(%) Ce (Nom Velocity travel time Distance Slope(%) C, Isom Velocity travel time Distance Slope(%) C. then Velocity Navel time (ftl .be.'e cruel Ifllseel (min) (ftl yoga.tµle)_ _ Iftisecl (min) (ft1 abanbael IR/sec1 (min) fft) yoeae rel•1 IWsecl (min .-;.,t 1.382 -.µ2.Q!;;. .-"112' 1/0 13.57 1,362 2.0 12 1/0 13.57 ¢} 1382.„;-3.+: 20 t 12': 1/0 13.57 . 1382 2.0 12 1]0 13.57 Basin type: Rural Total time(min) 4282 Basin type: Rural Total time(min) 42.82 Basin type: Rural Total time(min) 42.81 Basin type: Rural Total time(min) ' 42.81 Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments tot ten l time check(Mall•us To= 42.82 tot length time check gum*tot T.= 42.82 hall time check(luleo)•Kt Tn= 42.81 tot length time check nut se)•Iq T.= 42.81 1600 20.00 '1800 20.00 1800 20.00 1800 20.00 PI(1=-hour point rainfall depth(inches))= r7";''.1'40''' PI(1-hour point rainfall depth(inches))= <2.10 i,-t PI(1-hour point rainfall depth(noes))= 1.40 P,(1-hour point rainfall depth(inches)]= 2/0 (Figure RA-2,UDFCO) (Fpur Rate.UDFCB) (Fighae RA-2.UCFC01 (Fy404 uDFCo) Intensity(Equation RA-3 UDFCD)= 1.77 infhr Intensity(Eguatlon RA-3 UDFCDI= 3.40 irvhr Intensity(Equation RA3 UDFCD)s 1.77 Mir Intensity(Equation RA-3 UDFCD)= 3.41#yN Rational Method Flows Rational Method Flows Rational Method Flows Rational Method Flows QM(s) C factor To(min) I(inrh0 A(acres) Pic's) C factor Te(min) I ONhr) A(acres) O(efs) C factor To(loin) I(irdhr) A(acres) . 0(efs) C factor 're(min) I(inlhr) A(ac 7.06 0.082 42.62 1.77 48.6 60.17 0.354 42.82 3.40 48.6 7.09 0.083 42.81 1.77 46.8 60.28 0.364 42.81 .3.41 48,6 oasis%cis perfecto allowable discharge me 0.44% Wease IXCn.MedMatMrslms Flew(h¢ynriem Manse s) _ 0.15% e of Developed Row overHlsleic norMra'0 94 • it LANDPROfessionals.LLC 3 of 5 Eric W.Dunker.P.E. Drainage Calculations Highland Farms PUD • • Historic Flows(BASIN#3)file Only) Developed Flows(BASIN#3)(see ally) _ Area Weighting for Runoff Coefficient(Basin 83)(Site O0N) Area Weighting for Runoff Coefficient(Basin#3)(s de Sub-Area0 Area %Impenfae NRCS Soil Calculated Calculated Calculated Calculated Cs C,-A C,m C1..,A Sub-Area# Area %Impervious NRCS Soil Calculated Calculated Calculated Calculated Cs C,-A Cam C1m-) (Acres) Idadma0 Type C.dp Cana, Cw,m,, Cca.,my, (Acres) (decimal) Type CAa, Coo,. C41mn, Cawmn 1 f 36 v: 0,114Tu. --II 0.07 0.22 0.28 0.53 0.15 0.52 041 1.47 t ....unite,e.,0.1252' .,C.--'Bn 0,08 0.22 0.29 0.54 0.15 0.55 041 1.49 0.15 0.20 0.50 000 000 0.00 0.00 2 ":.a. r.ps.l,+;c:< ' 0.00 0,15 020 0.50 0.00 _ 0.0D 0.00 0,15 0.20 0.50 0.00 000 0.00 0.D0 3 ,p.a •p,,,,usy: 0.00 0.15 .0.20 O50 000 000 0.00 0.00 4 v anA`2"'P.... 0.00 0.15 0.20 0.50 0.00 0.00 000 000 4 I',i ,cc..w.'as.;,..7.774.8rj 0.09 0.15 020 0.50 000 0.00 000 000 5 .+ 9..,. =.t, h s.. ,. 000 0.15 0.20 0.50 000 • 0.00 0.00 000 5 b hawfx44,44 774...4C..,. 0.00 0.15 0.20 050 0.00 000 - 000 0.00 Sum: 3.6 Sum: 0.52 Sum: 1:47 Sum: 3.6 Sum: 0.55 Sum: 1.49 INea.wSl dRaMCaficems(man Mona) WWeighled Cr 0.146 IWeinlled Clm 0.410 I IMea-Weatded Renee CaRcwts emote/sum/9 IWeilp,led Cs 0.153 lWelglted C,m 0.414 I . I Proposed Development Area(Highland Farms PUD)Bashi#3(Site WO ,I Proposed Development Area(Highland Farms PUD)Basin#3 Isle Onty) 5-year historic 100-year historic .. 5-year developed . 102year developed Time of Concentration • Time of Concentration Time of Concentration Time of Concentration Initial Time(Maximum,50Tbr Rural 6300'for Urban Basins) Initial Time(Maximum 500 Mr Rule(63W'/w Urban Basins) Initial Time Maximum 5001or Rum/630Tfor Urban Basins) Initial Time(Maximum 5907m Rural a 300'(w Urban(Issas) Ca Distance Slope(%) (I(min] - C, Distance Slope(%) ❑(min - C, Distance Slope(%) ti(min C. Distance Slope(%) ti(min (Ru 0146t`-484,,;t, 4iy,,,, 3,5 24.59 0.146 ' 499 3.8 24,59 0153 ^,. '"7 499 .t a' 'jx It'3.6 24.40 0153 499 3.8 2440 TY�.1 J,,t Travel Time Travel Time Travel Time Travel Time 0.Meet'Heary,maaw;15;lsayeascs Short pasture 6 lanntil;Nearly bare O.flees:Heavy netlw;25:Teaee15elt5:Short pasture 6 lampT,Nealy bare S.values:Heavy neadecSr taapeaddp::EMlpasave 6bwn;l:weave.. C,vsuec Heavy neadow:25:Taaeam.ld:s won pause almvcirbmy bore ...u,4.10 Cvmaedwtlemayl5:Paved crams stucco peved.waes7e gamete.Grassed wme/;15;Paved areas&shallow paved males= pountlt Gaud weewenl5:Pmdrea 6 shallow pavedawala;20 penile ceassedweevpyle Pavel seas 6NMw paved reaks.20 Distance Slope(%) Cr Cam Velocity travel time Distance Slope(%) C, then Velocity travel time Distance Slone(541 C, (from Velocity travel time Distance Slope(Vat) C, @am Velocity travel time (ftl tome label fnsecl (mint _ (RI tome two Iftlsect (mint Iftl time label Iff/sec) fminl m or l me labial unseal (min 382 ,..„.1,8..-.' ,„p^12'. 1.52 4.19 382 1.6 12 1,52 4,19 382."J,(G.=,,16 .)7),A.`C2, 1.52 4,19 382 1.6 12 152 4.19. Basin type: Rural Total time(min) 28.78 Basin type: Rural Total time(min) 28.78Basin type: Rural Total lime(min) 28.60 Basin type: Rural Total time(min) 28.60 Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments - Time Check for Urban Catchments tanry time check(luteol•in T,= 28.78 tot lencith time check fen 00)•to) Taa - 28.78 lot length time check((ufeol•m) Tc= 28.60 tot length lime check(Imm).lot - T.= 28.60 881 14.89 881 14.89 881 14.89 881 14.89 P,(t-hour point rainfall depth(inches))a 14D'1,' P1(1-hour point rainfall depth(inches))a x2,70''$�,, P1(1-hour point rainfall depth(inches))= 140 P1(1.hour point rainfall depth(inches))= 270 elgre PA-2.UOPCDI (Fiore Rea,lJWC0l (rigss R5.2.UDECO) (FaaRWt SW) Intensity(Equation RA-3 UDFCD)= 2.251Nhr Intensity(Equation RA-3 UDFCD)= 4.34 Whr Intensity(Equation RA.3 UDFCD)a 2.26 in/hr Intensity(Equation RA.3 UDFCDI= 4.36 Mir Rational Method Flows Rational Method Flows Rational Method Flows Rational Method Flows Clefs) C factor T.(min) I(in/hr) A(acres) [fiefs)' C factor T.(min) I(Whr) A(acres) Q(cfs) C factor T.(min) I(inur) A(acres) Q(efs) C factor T.(min) I(in/hr) Alae 1.18 0.146 28.78 2.25 3.6 6.40 0.410 28.78 4.34 3.6 1.24 0.153 28,60 2.26 3.6 6.50 0.414 28.60 4.36 3.6 0.,32,11 era pvaernLbwmlo,=aeharge rate 530% increase&M,elyN Flow averHieladc Flwprmigteeedn 1.50% attain*at Row aswuio e<Ra•/a 55#1 LANDPROfessionals,LLC - 4 of 5 Eric W.Durher.PE. Drainage Calculations Highland Farms PUD • Historic Flows(BASIN#4)(save Only) Developed Flows(BASIN#4)(se.Only) Area Weighting for Runoff Coefficient(Basin 04)(ire only) Area Weighting for Runoff Coefficient(Basin 04)(sqe Only) Sub-Area 0 Area v.Imperaous NRCS Soil Calculated Calculated Calculated Calculated Cs Cs'A Crm Croo'A Sub-Area S Area %Impeebte NRCS Sou Calculated Calculated Calculated Calculated Cs Cs•A Clan Crm-- (Aves) (decimal) Type C.ap Cmsn CAhdq. Cmiea+ (Acres) (aevma9 Type Cps, a... Ca.rei. Cmrwr 0.23 0.29 0.54 0.16 0.77 0.42 2.04 1 4:00^. 0,1271 : B.;' 0.08 0.22 0.29 0.54 0.15 0,76 041 2.03 2 - :.r - ` -"!.. .-.: 0.00 0.15 0.20 0.50 0.00 0,00 0.00 0.00 2 - . "_4 0.00 0.15 0.20 0.50 0.00 0.00 0.0 ) .00 3 - �. ✓": . e..-:::"� 0,00 0.15 0.20 0.50 000 0.00 0.00 0.00 3 %>: a '.. -' v..`' O00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 0.15 0.20 0.50 0.00 0.00 0.00 0.00 4 iF"+:- `�. '_" " - -' ,y". 0.00 0.15 0.20 0.50 0.00 _ 0.00 0.00 0.00 s 'd.. - '-✓F'r-.,- 0.00 0.15 020 0.50 0.00 0.00 0.00 2,04 5 yb.;.. y °- P:" '6 !C'5 0.00 0.15 0.20 0.50 0.00 0.70 0.00 0.00 Sum: 4.9 Sum: 0.77 Sum: 2.04 Sum: 4.9 Sum: 0.76 Sum: 2.03 IrvnMWti9Ned RinMCoeruents(sum GVsmnAl (Weighted Cy= 0.157 (Weighted Crm 0.417 I Area-Weighted Pumfl CaPiaenklsun Waum Al (Weighted Cr 0.154 (Weighted Cos 0.415 I Proposed Development Area(Highland Farms PUD)Basin 04(Site Only) I I Proposed Development Area(Highland Farms PUD)Basin R4(sire Only) I 5-year historic 100-year historic 5-year developed 100-year developed Time of Concentration Time of Concentration Time of Concentration Time of Concentration Initial Time(Maximum WO'for Rural 6a0o forlhtan Basins) Initial Time(Maximum 50'for Rural&3W9o_r Urban Basins) Initial Tiime(Maximum 5W'(orRural if 300'for Urban Basins) Initial time Rural 6 30010 Urbaneeens) Cs Distance Slope(%) 6(min Ce Distance Slope(%) ti(min]- C, Distance Slope(%) ti(min Cs Distance Slope(94) ti(min (RI 101 MI 101 20.56 0.157 412 4.7 20.56 0154k,A 412 a '_>:,ii 3 ,.c4.7i 20.63 0.154 412 47 2063 Travel Time Travel Time Travel Time Travel Time C.values Heavyneedoa:25:TJIORlidd;5',EgonposW.aiewna;]:Newry Sara C„vyuee:Heavy rmMw:25:nlbgeNeld;5'-short pastime 6 law.ns:l.Newly bare CsMue:Heavy meadow;20:Mllege/PcId.5.Shod pashre dilaasmi.Newly ham ereeuest Heavy meado.:25:ilnryeeeld:Y Short pasts.8N.4l:Nearly bare erowd:le GmsedwaeivnY,l5:Peed areas It dots pavedswtleg25 Borte.10 iogee wlerwayt5:Pevedmes6 the(es paved swales:20 pond:la GrossedwserwN,ls:Paved seas&shrew paved oniesp0 gamnlo Grassedvtleneayl5:Paved owed sletoa savor t.eta Distance Slope(%) Cs llmm Velocity travel time Distance Slope(%) C, Hem Velocity travel time Distance Slope(%) C, (awn Velocity travel time Distance Slope(%) C, (from . Velocity travel time IRI men tablet fftlsecl (min) _ fftl above table) (Waco) (mini (0) moatsHe) fftfsecl Imin) (ft) above table) (ftlsecl (min 'eP .,3480 - 2.2--y-; : 12. 178 4.49 480 2.2 12 178 4.49 "480j,.,,r`. 22 t W12' 1.78 4,49 480 22 12 1/8 449 Basin type: Rural Total lime(min) 25.06 Basin type: Rural Total time(min) 25.08 Basin type: Rural Total time(min) 25.13 Basin type: Rural Total time(min) 25.13 Time Check for Urban Catchments . Time Check for Urban Catchments Time Check for Urban Catchments Time Check for Urban Catchments tot length time check(IUtml•ho) To= 25.05 tottol l time check gulea)•le) T.= 25.06 tot length time check((unmet% it= 25.13 lotlot l time check emmt•ill Ts= 25.13 892 14.96 092 14.96 892 14.96 892 14.96 ' P,{1-hour point rainfall depth(inches)). I40_�'' P1(1-hour point rainfall depth(inches))= N 2.70 - Pi el-hour point rainfall depth(inches))= 1.40 Pt{1-hour point rainfall depth(inches))= 2.70 trial.RA-i.UOFCO) (rime RAe.UOFCD) Ingle RA-2,UOFCD) (Fore RAM.UnrCm Intensity(Equation RA-331DFCD)a 2.44 INhf Intensity(Equation RA-3 UDFCD)= 4.70 lnlhr Intensity(Equation RA-3 UDFCD)= 2.43 Maw Intensity(Equation RA-3 UDFCD)= 4.69 Mg' Rational Method Flows Rational Method Flows Rational Method Flows Rational Method Flows Picts) C factor Te(min) I(iwbr) A(acres) Picts) C factor T,(min) I(Inlhr) A(acres) Picts) C factor T.(min) I(in/hr) A(acres) 0(cfs) C factor- Te(min) I(infhr) A(ac 1.88 0.157 25.06 2.44 4.9 9.60 0.417 25.06 4.70 4.9 1S4 0.154 25.13 2.43 4.9 9.54 0.415 25.13 4.69 4.9 0.393 cea par MNafowahlo discharge rare - - • .220% Increase of Developed Fiona Hidvia Row(Inaynfiurdl • .005% Increase aIDeelgnd Row owYHaloie Rol ll=pdwy) • • • tANDPROfessionals,LLC 5 of 5 Eric W.Ducker.P.E. Highland Farms PLOD Detention Basin di-Volume Calculation • �� DE7ENTI0(+tV£1LUIVIL 8'I Mtl FIEl3 fRA MffSHoD '�, .. z 46etl35DO01 Valumg 1punolF Chapter For diesdFlptidrdiihtolhdd� _ .,.. . J (For catchments less than 160 acres only. For larger catchments,use hydrograph routing methods) (Note:for catchments larger than 90 acres,GUMP hydrograph and routing are recommended) • -Design Information(Input): Catchment Drainage ImpeMousness I,= ::',` _....B;perceh Catchment Drainage Area A=.v:•: :40:00!eaes Predevelop crd NRCS Soil Group Type= : Br,B,C.or D Return Period for Detention Control T= :: 100-years(2,5,10,25.50,or 100) Time of Concentration of Watershed A9ovrable Unit Release Rata(See Table A) q s:' ..'10.25:cfs/eae • One-hots Precipitation P1=r': Tri270Inches Design Rainfall mF Formula Ie C1•P1f(C2+To) C3 CoefOdeAOna C1 28:50 Coeftdent Two C2=::'- 1=.1000' Coeffident Three C3=---'- :".0.79 Determination of Average Outflow from the Basin(Calculated): Runoff Coeffdent C=Y— Inflow Peak Runoff OPin= 'BO BS ors ✓dowabla Peak Outflow Rate Op-out= Z'LIC10_0;cfs Ratio of Op-otf0p-n Ratio= 0:11 TableA Recommended Unit FlowRelease Rate In cfsfacre of tributary catchment within UDFCD boundaries. Design Frequency NRCS SCSI- •role'c Soil G• _ A B 8D 2- ar 0.02 003 .04 5- 013 017 0.23 .30 10- e-Sr 0.14 041 - .32 25-ear 0.24 0.11 .52 • 50-ear 0 056 68 100year- 050 0.85 .00 ;:': . .5etetmrlinft: af:U6te14troffn`ma:UsmsM04tfie'd:FAAV.40)Od ... Ai Rainfall duration must be entered N ascending order. " Rainfall I Rainfall Inflow Adjustment Average Outflow Storage Duration Intensity Volume Fedor Outflow Volume Volane minutes trehesls cubic feet efs cubic feet cubic feet (Input) (Wed) (output) (output) (emda) loutpml fallout) 500 :!9:06 43485 d: 100 1000 %3,000 :_40,465 • • • '.1000 "'7.22 69289; 100 :: 10.00 >:'6,000 ' :863.289 >: _:2000 : -:5.24 100597:'- 094 935 f11220 1:'89.377 >: 30.00 ,411] 120219 J. 079 790 •:74220 0:105,999:: ' 40.00 :. 350 .134,380:' '072 718 :`:17220 1117,166-. 5000 x`3:03 145469`'- 067 7,]4 rL20220 "S.125,229." ---6000 "92.60 154.527 065 645 '::23220 5°131,307 Ci . 7000 x241 162232'. 062 e24 ::26220 ':'•r 130,012:-: 80.00 ' 2.20 160934:? 061 609 29220 139',714 9000 - 'd-.2.02 174,8731' 060 597 ,92220 .'142:653.:::. -10000 ..,.::1:68 180210'?n 0.59 : 587 (':35220 ;144,990:::.! " 11000 '::1.75 185063x: 058 579 ::::30220 146,843=• .:'12000 -i:11.65 189516:1• 0.57 5.73 :'141220 :'148,296:: - :: 63000 51.55. 193634:.: 057 567 f144220 -149.414 Vii. 'i:14000 ' `!.1.47 19]4681' 0.56 - 562 ??,47,220 150;248?! �'g 15000 1-40 2010553: 056 : 558 +50220` !:150,8]6`e 16000.. - -.:1.33 204430s 0.55 554 '!'53220' 151;210?: -17000 `x127 207617": 055 : 551 '56220 151;397£. 18000 . 1.22 210638 i'. 055 - 546 359220 ::151,410:: -19000 1:1J 2135111. 055 548 ::62220 :'151,291 SY 20000 ._1.13 216,250?? 054 544 "65220 ,_751,030:_: .21000 1.09 210.669'4 054 541 .1:68220 ;' :150,649' • ...220.00' _. 1'.05 :221;300.:: 054 540 -"71220 ::r150,160t.` '230,00- -1,01 223,790: 054 536 i_74,220' 149,570:: 24000 '".'0.98 '226,109:. 054 538 ;177220 :':148;889' 25000 `095 -228;345.'1 053 525 ::80220 "' 148,125 °. ::.26000• 0.92` 230503" 05] 593 'n 83220 _:147203::.. _ 270.00 ..0.90 232589: 053 532 186220• `.146,369 280.00- --_.0.87 .234',608" 053 - 531 1 09,220 '145,388"[' :.-29000 "085 236',666!; F 053 530 £:92220 :.144316?•: '30000 "'0:63 236465:!: 0.53 529 :1'95220 -t:143;245':r. '31000 5:10.81 2403112 053 528 ?198220 1:142.031".. :32000 .:0.79 242105':: 053 527 ':`101220 Jt40,885;C 1:33000 •1'0.77 243852`:: 033 526 ':.104220 "139,632 C: .'C 340.00 ;0.75 245,553; 0.53 526 107,220 130:333 35000- :074 2412 I: 052 ` _ 525 110220_ :136,992 J stormwater Detention Volume(Cubic Feet)v 151;diB:-? • Stormwater Detention Volume(Acre Feel)='::,3:4761.%:.. LANDPROfessionsls,LLC 1 Edc W.Dunker,P.E. • Highland Farms PUD Detention Basin el-Volume Calculation . • Inflow and Outflow Volumes vs. Rainfall Duration intersection of Modified and FAA Outflow Plots Is at maximum detention volume 300,000 ...... ........................................................... ................................................... i 250,000 I 200,000 a LL a tj 150,000 ess/ E 1 1 • 100,000 3 • 50,000 1 0 i 0.00 50.00 100.00 150.00 200.00 250.00 300.00 350.00 400.00 Quration(Minutes) -Hi-Inflow Volume -A—Modred Outflow Volume t FAA Outflow Volume LANDPROfessionels,LLC 2 Ede W.Dunker,P.E. Highland Estates PUD - Basin #1 Drainage Calculations STAG STORAGE FOR IRREGULAR GEOMETRY Design Information (Input): From the pond site grading plan, enter water surface elevations and measured contour areas in ascending order. Water Eq-elev. Volume Surface Contour above Elevation Area Datum ft acres acre-ft (input) (input) (output) 4995.00 ;! : 0':54 : "0:00 - 4996:00 ; '0.65 0.60 4997.00 ' 0.76 1:30 4998.00 `. 0.88 2.12 4999.00 1.00 3:06 5000.00 1.12 ,' 4.12 5001.00 ' " 1.18 5.27 • LANDPROfessionals, LLC 1 of 1 Eric W. Dunker, P.E. Typical Grass Lined Swale Worksheet for Triangular Channel Project Description Worksheet I Triangular Channel-1 Flow Element Triangular Channel Method Manning's Formula Solve For Discharge • Input Data Mannings Coefficient 0.030 Channel Slope 3.010000 ft/ft Depth 1.50 ft Left Side Slope 4.00 H:V Right Side Slope 4.00 H:V • • • Results Discharge 36.06 cfs Flow Area 9.0 ft2 Wetted Perimete 12.37 ft Top Width 12.00 ft Critical Depth 1.38 ft Critical Slope 0.015434 ft/ft Velocity 4.01 Ws Velocity Head 0.25 ft Specific Energy 1.75 ft Froude Number 0.82 Flow Type Subcritical • • • • • • • • Project Engineer:Eric W.,Dunker s:\.Ahighland farms\highland estates.fm2 AgPro Environmental Services LLC FlowMaster v7.0[7.0005] 05/13/04 03:50:59 PM O Haestad Methods, Inc. 37 Brookside Road Waterbury,CT 06708 USA +1-203-755-1666 Page 1 of 1 Orifice Plate Requirements Worksheet for Generic Orifice Project Description Worksheet Outlet Control Type Generic Orifice • Solve For Opening Area • • Input Data - Discharge 10.00 cfs Headwater Elevation 5,000.00 ft Centroid Elevation 4,996.00 ft Tailwater Elevation 4,995.00 ft Discharge Coefficient 0.66 • Results Opening Area 0.9 ft' Headwater Height Above Centr 4.00 ft Tailwater Height Above Centroi -1.00 ft Velocity 10.59 ft/s bZ jZ b,ai= tr • • • • • L J Project Engineer:Eric W. Dunker s:\...\highland farms\highland estates.fm2 AgPro Environmental Services LLC • FlowMaster v7.0[7.0005] 05/14/04 08:43:21 AM ©Haestad Methods,Inc. 37 Brookside Road Waterbury,CT 08708 USA +1-203-755-1666 Page 1 of 1 Outfall Pipe (24" CMP) Worksheet for Circular Channel , Project Description Worksheet Outfall Flow Element Circular Channel Method Manning's Formul Solve For Channel Depth Input Data Mannings Coefficienl 0.024 Channel Slope 3.010000 fUft Diameter 24 in Discharge 10.00 cfs • • Results Depth 1.37 ft Flow Area 2.3 ft2 Wetted Perimeter 3.91 ft Top Width 1.46 ft Critical Depth 1.13 ft Percent Full 68.7 % Critical Slope 0.017731 fUft Velocity . 4.35 fUs Velocity Head 0.29 ft Specific Energy 1.67 ft Froude Number 0.69 Maximum Dischar 13.18 cfs Discharge Full 12.25 cfs Slope Full 0.006660 ft/ft Flow Type Subcritical • • • • • Project Engineer Eric W. Dunker s:\...\highland farms\highland-estates.fm2 AgPro Environmental Services LLC - FlowMaster v7.0[7.0005] 05/14/04 08:42:16 AM ©Haestad Methods,Inc. 37 Brookside Road Waterbury,CT 06708 USA- +1-203-755-1666 Page 1 of 1 Highland Farms PUD ® © 05/14/04 • Appendix C • Tables and Figures Utilized for Calculations • Final Drainage Report LANDPROfessionals, LLC 9 DRAINAGE CRITERIA MANUALQ1) RAINFALL - 4.0 INTENSITY-DURATION CURVES FOR RATIONAL METHOD To develop depth-duration curves or intensity-duration curves for the Rational Method of runoff analysis take the 1-hour depth(s)obtained from Figures RA-1 through RA-6 and multiply by the factors in Table RA-4 to determine rainfall depth and rainfall intensity at each duration. The intensity can then be plotted as illustrated in Figure RA-15. TABLE RA-4 Factors for Preparation of-Intensity-Duration Curves Duration (minutes) 5 10 15 30 60 Rainfall Depth at Duration (Inches) 0.29P1 0.45P7 0.57P1 0.79P1 1.0P1 Intensity(inches per hour) 3.48P1 2.70P1 2.28P1 1.58P1 1.0P1 Alternatively, the rainfall intensity for the area within the District can be approximated by the equation: _ 28.5 P, I (10+ T`)°386 (RA-3) in which: / 1= rainfall intensity(inches per hour) P1 = 1-hour point rainfall depth (inches) - Tc=time of concentration (minutes) • 06/2001 Urban Drainage and Flood Control District RA-6 DRAINAGE CRITERIA MANUALQ1) RAINFALL 1.3 I 4 r . .. I .. c: F. ..3": .. F .. F i F 2J F c-. 1.4S 1 {:. 1.4 1 17'E 1.4 - I I ,,r. Lc.II::I i•:ryi _ I • I I n Id?:i• I I I ._ 1( I . l • ,,E ;F- Ii I �rlc _ ^ E2 art. .EF E;-:i, pp I- ,- 3 .. �,.-'. GEILEF I. n� 11- I\ .1—, I / / • n.E .. —____j °.EF.: EEII l.4 I -.•F-HC E -RF-HOE r i111Fcr • CLEFT _ __ F.F EP n 1 I • 1..E • EEE+L1- n I.1 X I __ . I C6 1 1._ _iu L,'..1 F 1.11 -III FF F _ FIGURE RA-2 Rainfall Depth-Duration-Frequency: 5-Year, 1-Hour Rainfall 06/2001 Urban Drainage and Flood Control District RA-14 DRAINAGE CRITERIA MANUALS) (ill RAINFALL FZ3a F €' .. P ? � C : _' t L:11:1101111 i L I- • \ i \ F I 111,CT• I \ I .- J / JELL I - EFl,;aTvl • KLIE at:, I a GEF / EF P 311 J J(1 J y / / J IEII+EF Ali = l.13 FcF :.15 \ • : _F M:E _F-F_M:E ' E 1"L'° EL EEFT I .. •F tEP • 1/.1, rf SEC-Loa - - PFgn i.;dl•wl F F ' _ c E'�" -F-'.v?.' F Et F 2- P. Ft:.'I _ FIGURE RA=6 Rainfall Depth-Duration-Frequency: 100-Year, 1-Hour Rainfall 06/2001 Urban Drainage and Flood Control District RA-18 DRAINAGE CRITERIA MANUAL®1) RUNOFF TABLE RO-3 Recommended Percentage Imperviousness Values Land Use or • Percentage Surface Characteristics Imperviousness Business: • Commercial areas 95 Neighborhood areas 85 Residential: Single-family * Multi-unit(detached) 60 Multi-unit(attached) 75 Half-acre lot or larger * Apartments 80 Industrial: Light areas 80 Heavy areas 90 Parks, cemeteries 5 Playgrounds 10 Schools 50 Railroad yard areas 15 Undeveloped Areas: Historic flow analysis 2 • Greenbelts, agricultural 2 Off-site flow analysis 45 (when land use not defined) Streets: Paved 100 Gravel (packed) 40" Drive and walks 90 Roofs 90 Lawns, sandy soil 0 Lawns, clayey soil 0 *See Figures RO-3 through RO-5 for percentage imperviousness. Based in part on the data collected by the District since 1969, an empirical relationship between C and the percentage imperviousness for various storm return periods was developed. Thus, values for C can be determined using the following equations (Urbonas, Guo and Tucker 1990). Ca =Ka + (1.31i3 —1.4412 +1.135i—0.12) for CA?0, otherwise CA=0 (RO-6) CCD =Kcfl + (0.858i3 —0.786i2 +0.774i+ 0.04) (RO-7) CB =(CA ± Cco /2 in which: = % imperviousness/100 expressed as a decimal (see Table RO-3) 06/2001 Urban Drainage and Flood Control District RO-9 0� t �KE¢G w a 010 ##W , 0 414 # , t* $ $ Or OS,. \ IS F•REST WITN HEAVY GROUND LITTER t MEADOW ai . it. N� 0 `�, FALLOW OR MINIMUM TILLAGE CULTIVATION.re- IIP11 A OA. d�� .a �0 @ �wZ 4P" SH•RT `GRIASS PASTURE '.(AWNS * Vi1•. C Q TO � • 0 t'o•� ��•',��, NEARLY BARE GROUND- d n' o T j 3 lava PAVED AREA (SHEET FLOW) Z SHALLOW GUTTER FLOW � t o , 9., � to � � li e �% ms* . tc≤0 •0 atr#1°. • t % • •.11. :� ..\\ . . 0 to, VS. 0. 9, ao Id County rt lznt GREELEYPlanning OFFICEDe, St. xn Valley SEP 2 4 2004 School Distract kr s / September 21,2004 Jacqueline Hatch Weld County Planning Department 1555 N. 17th Ave. Greeley, CO 80631 RE: Highland Estates Change of Zone(Situate in the NW%of Section 5, TIN, R68W) Dear Jacqueline: The purpose of this letter is supplement the District's referral letter of June 21, 2004 and state that the St. Vrain Valley School _District is not in opposition to the approval of the Highland Estates Change of Zone. In addition, the District has no requests of the applicant at this time.The purpose of the District's previous referral is to provide information to the County and the applicant about District policy, and the current capacity situation for the Erie Middle/Senior feeder system. At the preliminary and final plat stages, should any of these issues remain unresolved, the District may oppose the approval of those applications. At present, however, the District is satisfied with the information included in the June 21 referral, and does not oppose the approval of the Highland Estates Change of Zone without any further requirements. Sincerely, lenlen S�CP Planning Specialist ST.VRAIN VALLEY SCHOOL DISTRICT PLANNING DEPARTMENT.395 SOUTH PRATT PARKWAY,LONGMONT,CO 80501.SCOTT TOILLION,DIRECTOR.PHONE 303-682-7229. FAX 303-682-7344. 9) , Matt Cain From: Matt Cain [mcain@agpros.com] Sent: Thursday, August 26, 2004 4:40 PM To: Robert Bulthaup Cc: Lauren Light Subject: FW: Highland Acquistion -PZ 1045 Rob, This is a email between Gloria at CDOT and Jaqueline at the county allowing us to finalize the Access permit when final engineering is completed. Matt Cain AGPROfessionals, LLC LANDPROfessionals, LLC 4311 Hwy 66, Suite 4 Longmont, CO 80504 970.535. 9318 303.485.7838 (metro) 303.358.2807 (cell) 970.535. 9854 (fax) mcain@agpros.com Original Message From: Hice-Idler, Gloria [mailto:Gloria.Hice-Idler@DOT.STATE.CO.US] Sent: Thursday, August 26, 2004 3:29 PM To: mcain@agpros.com Subject: FW: Highland Acquistion - PZ`1045 _ - >• Jacqueline, >• I wanted to let you know where CDOT is with the above proposal. CDOT has agreed to allow access and have received the access application. The permittee has been working with our Hydraulics Unit to address their concerns, but they can't be addressed until later in the County process. Once those issues have been resolved, we will issue an access permit. > CDOT would have no objections to the County proceeding with their process, and ultimately getting us to a place where the permittee can also address our issues. >• If you have any questions, please do not hesitate to contact me. >• Gloria Hice-Idler > Assistant Access Manager > CDOT Region 4 > 1420 2nd Street > Greeley CO 80631 > (970) 350-2148 1. O , DEPARTMENT OF PLANNING SERVICES 1555 N. 17th AVENUE GREELEY, COLORADO 80631 Ip WEBSITE: www.co.weld.co.us E-MAIL:jhatch@co.weld.co.us C. PHONE (970)353-6100, EXT. 3540 FAX (970)304-6498 COLORADO July 26, 2004 Division of Water Resources 1313 Sherman Street, Room 818 Denver, CO 80203 Attn: loana Comaniciu RE: Subdivisions and Longs Peak Water District. Dear Ms. Comaniciu: I have two subdivisions that are proposing to utilize Longs Peak Water District. They are PZ-1000 Nesting Crane Ranch and PZ-1045 Highland Acquisition (Highland Estates/Farms). PZ-1000 Nesting Crane Ranch by Stenerson, Olson, and Lowrey Development LLC located W2 W2 NE4 of Section 30,T3N, R68W of the 6th P.M.Weld County CO PZ-1045 Highland Estates/Farms by the Highland Acquisition Group located Lot B RE-3105 N2 NW4 of Section 5, Ti N, R68W of the 6th P.M.Weld County CO Please contact me at(970)353-6100 x 3540 if you have any questions or need additional information. Thank you for providing updated comments to their requests. Sincerely, Jacqudine Hatch Planner I SEP. 27. 2004 4:38PM ASTRElI0A&RICE NO. 0624 P. 1 ASTRELLA& RICE P.C. Attorneys at Law 1801 Broadway, Suite 1600 Denver, Colorado 80202 PHONE (303)292-9021 FAX(303) 296-6347 FAX TRANSMITTAL SHEET I TO: Lauren Light FROM: Laurel Zabel FAX: 1 -(970)535-9854 DATE: September 27,2004 PAGES TRANSMITTED (INCLUDING THIS PAGE): 24 CONTACT CASEY AT(303)292-9021 REGARDING PROBLEMS WITH THIS FAX. MATTER: MESSAGE: • THE INFORMATION CONTAINED IN OR ATTACHED TO THIS FACSIMILE MESSAGE IS INTENDED FOR THE CONFIDENTIAL USE OF THE INDIVIDUAL OR ENTITY NAMED ABOVE. IF THE READER OF THIS MESSAGE IS NOT THE INTENDED RECIPIENT, OR THE EMPLOYEE OR AGENT RESPONSIBLE TO DELIVER IT TO THE INTENDED RECIPIENT,YOU ARE HEREBY NOTIFIED THAT YOU HAVE RECEIVEDTHIS DOCUMENT IN ERROR'.. AND THAT REVIEW,DISSEMINATION OR COPYING OF THIS COMMUNICATION IS PROHIBITED.IF YOU HAVE I RECEIVED THISCOMMUNICATION IN ERROR,PLEASE IMMEDIATELY NOTIFY USSYTELEPHONEAND RETURN THE ORIGINAL MESSAGE TO US By MAIL. THANK YOU. J' 1 SEP. 27. 2004 4:39PM ASTREJ IAA&RICE Na 0624 P. 2 SURFACE USE A.ORElt1VIENT THIS SURFACE USE AGREEMENT ("Agreement") is made and entered into this 31st day of August, 2004, by and among ANADARKO PAP COMPANY LP ("Anadarko E&P"), formerly known as Union Pacific Resources Company, and ANADARKO LAND CORP. ("Anadarko Land"), lvu.ueily known as Union Pacific Land Resources Corporation(together the "Anadarko Fnt9$esi, both with an address of Post Office Box 1330,Houston,Texas 77251-1330;ENCANA ENERGY RESOURCES INC. ("EnCana") with an address of 950 Seventeenth Street, Suite 2600, Denver, Colorado 80202(the Anadarko Entities and EnCana are sometimes referred to hereinafter together as the "Oil Companies") and HIGHLAND ACQUISITION GROUP, L.L.C. ("Surface Owner") with an address of 6297 South Potomac Way, Centennial, Colorado 80111. A. Surface Owner owns or has the option to purchase the surface estate for approximately 54 acres of property located in Weld County, Colorado,in the N/2NW/4 of Section 5, Township 1 North, Range 68 West,which is hereinafter referred to as the "Property"and specifically described in Exhibit 1. B. Surface Owner proposes to develop the surface estate as a residential subdivision. C. The Anadarko Entities own all of the minerals that underlie the Property- D. .Anadarko Land owns all of the minerals ether than the oil, gas and associated liquid hydrocarbons that underlie the Property, as well as a reversionary interest in the oil, gas and associated liquid hydrocarbons, and Anadarko PAP and Anadarko Land together own all of the oil,gas and associated liquid hydrocarbons. E. Anadarko E&P or a predecessor company has granted an oil and gas lease for The Property, interests in which have been assigned to EnCana.EnCana operates two producing oil and gas wells on the Property which are generally located in the NEI4NW/4 and identified as the Brown 5-3 and in the NW/4NW/4 and identified as the Brown C Unit#2(together-the"Existing Wells'). F. Enflena and Surface Owner have entered into a surface damages agreement that applies to the SE/4NW/4 of Section 5 and is dated October 2, 2003 ("EnCana Agreement"); this surface use agreement supplements the EnCana Agreement and supercedes it to the extent that it conflict with the EnCana Agreement and covers additional matters and additional or other lauds. a This Agreement provides r for and limited to the compatible development of the surface estate and the oil a gas for the Property; it does not in any respect apply to the minerals other than the oil,gas and associated liquid hydrocarbons that are 1 SEP. 27. 2004 4:39PM ASi lsIRICE NO. 0624 P. 3 o'wned by.Anadarko Land and which are the subject of a separate agreement between Surface Owner and Anadarko Land. NOW THEREFORE, in consideration of the covenants and mutual promises set forth in this Agreement including in the recitals%the parties agree as follows: 1. Oil and Gas Operations Areas. a. The Oil Companies shaft drill and operate oil and/or gas wells and locate future oil and/or gas wells only in the two areas depicted on Exhibit 2 as the Oil and Gas Operations Areas where the two Existing Wells are presently lout Uses within the Oil and Gas Operations Areas include, but are not limited to, drilling, completion, and maintenance of wells and equipment, production operations, workovers, well recompletions and deepenings,tract wing,twinning,the drilling of replacement wells and the location of associated oil and gas production and drilling equipment and facilities and also the location and drilling of oil and gas wells that are directionally or horizontally dolled to buttonhole locations outside the Property. b. The Oil and Gas Operations Areas shall include the geographic areas and dimensions that are depicted on Exhibit 2. c. The Oil Companies shall continue to have the right to drill more than one well with attendant facilities within each of the Oil and Gas Operations Areas and to deepen, recomplete or twin any well that is drilled, as well, as to drill directional and horizontal wells that produce flow and drain. the Property or lands other than the Property. d. The Oil Companies shall locate, build, repair and maintain tanks, separators, dehydrators, compressors and all other associated oil and gas drilling and production equipment and facilities only within the Oil and Gas Operations Areas. The parties all understand and acknowledge that the Oil and Gas Operations Area in the west location is presently the site of associated oil aid gas production egeripment,including a common tank battery. e, Surface Owner shall not plat any surface property line within the Oil and Gas Operations Areas. No temporary or permanent building, structure, or other improvement shall be constructed or installed by Sn dame Owner within the Oil and Gas Operations Areas or within the My (50) foot setback from the Oil and Gas Operations Area in the east portion of the Property as depicted on Exhibit 2. The Oil and Gas Operations Areas shall be for the exclusive use of oil and gas drilling and production operations. f. Except for the pipeline and flowline easements, access and the Oil and Gas Operations Areas identified in this Agreement,the Oil Companies shall not use the surface of the Property except in cases of emergencies: 2 - SEP. 27. 2004 4:39PM ASTREjI A&RICE Q N0. 0624 P. 4 2. Access to the Oil and Gas Operations Areas. a. Access to each of the Oil and Gras Operations Areas shall be along the routes depicted on FYhibit 2. b. Access to an Oil and Gas Operations Area may be changed by mutual agreement of the Surface Owner and the operator(s)of the well(s)for which the access is used;provided however, all costs and expanses of such relocations shall be borne by the party which requests the relocation. c. Surface Owner shall keep the portions of access roads jointly used by both Surface Owner and its subdivision occupants and the Oil Companies in. good condition and repair until such roads are dedicated to the local jurisdiction; provided, however,if one of the Oil Companies causes damage to a portion of a road that is jointly used by both the Oil Companies and Surface Owner or its subdivision occupants and which is constructed to the specifitations in section 22.(1),the Oil Companies agree to promptly repair any damage which they cause which is a direct result of their use of the read. d. No party shall nnteasonably intcrfac with the use by the other of an access road. e. Construction and Width of Access Roads. (1) Access roads or portions of access roads that are jointly used by the Oil Companies and Surface Owner shall be thirty(30)feet or more in,width,and Surface Owner sliAll construct or improve all paved or improved joint acce s roads so as to withstand the weight of oilfield equipment. Specifically, Surface Owner shall construct the roads so that they can be used to withstand the weight of 104,000 pounds and 26,000 pounds per axle. (2) Access roads or portions of access roads that are used exclusively by the Oil Companies shall be thirty (30) feet or more in width, and the Oil Companies shall install and maintain them to those state and local standards that apply to oil and gas operations. 3. Pittelines,Flowlines and Pipeline Easements. a. Pipeline easements shall be at the locations identified on Exhibit 2, and pipelines shall be installed at depths of approximately thirty six (36) inches below the surface of the ground b. Locations of pipelines and pipeline easements may be changed by mutual 3 SEP. 27. 2004 4:39PM ASTRF A&RICE NO. 0624 P. 5 s � V agreement of the applicable parties; provided, however, all costs and expenses of such relocations 01211 be borne by the party which requests the relocation. In the event that Surface Owner requests the relocation of a pipeline or fiowline, the applicable oil company shall provide Surface Owner with a written estimate of the relocation costs which Surface Owner shall thereafter promptly remit to the oil company. The payment shall be adjusted up or down upon completion of the work and after an itemized statement is provided to Stufnce Owner.Surface Owner shall,in addition,pay EnCana all costs and expenses that EnCana incurs to encase its pipelines and flowlines to the extent that such pipelines and flowlines underlie Highland Lane or any other road either in advance of or at the time that Surface Owner commences construction of Highland Lane and/or such other road at the place where the EnCana pipelines and flowlines intersect with Highland Lane or such other road. c. Pipeline easements shall be fifty (50) feet in width during construction activities and thirty(30) feet in width for all operations, maintenance and transportation activities. Flowline easements shall be thirty(30)feet in width for all operations.EnCaua is currently the grantee or assignee of the grantee of that certain recorded easement dated August 9, 1995 and recorded on December 15, 1995 in the Weld County Clerk and Recorder's Office in.Book 1522, Page 743, at Reception No. 2467785 that crosses the Property. d. Snare Owner shall be entitled to reserve the right to cross the pipeline easements at approximately right angles, and Surface Owner shall also have the right to install and maintain access to such easements for utility lines, including those for water, gas,sewer, electric, telephone, cable,television and fiber optic and other pipelines that travel along, but not within, the pipeline easements provided for herein; provided, however; i) any new underground facilities which travel along a pipeline easement identified heiciu shall be located a distance horizontally of at least ten (10) feet from parallel existing pipelines; ii) any new underground facilities shall have at least twenty- faux(24)inches of vertical clearance between such new facility and a pipeline provided for herein; and iii)any overhead power lines shall be at least twenty(20)feet above the ground. e_ Surface Owner shall grant the pipeline easements (for production front the Property and/or other lands)to the applicable oil and gas interest owners at the time the Oil Companies request them and at no cost to them. f Swat Owner shall rniintain a minimum ground cover of 36 inches and not more than 72 inches over pipelines and flowlines in the conduct of its operations and its construction activities on the Property. 4. Subdivision Plat. Surface Owner shall identify the Oil and Gas Operations Areas and all copes and pipeline easements on its subdivision plats and in all applications for development that it files with a local jurisdiction, and the plats shall include restrictions 4 - SEP. 21. 2004 4:39PM ASTREE &RICE N0. 0624 P. 6 that no property lines, and no temporary or permanent buildings, stratums, or other improvements shall be located,constructed or installed within the OR and Gas Operations Areas, Surface Owner chill record the subdivision plat in the Office of the Clerk and Recorder of Weld County and provide written evidence to the Oil Companies within fifteen(15)days ofrecarding. 5. Waiver of Surface Damage Payments. Surface Owner hereby waives all surface damage payments pursuant to any Colorado Oil and Gas Conservation Commission ("COGCC") rule or regulation or local regulation, state statute, returnee.Jaw or prior agreement for each and every well and related welisite that is drilled'within an Oil and Gas Operations Area and for each production facility and access and pipeline easement The Oil Companies or their lessees or their assignees may provide a copy of this Agreement to the COGCC or to any local jurisdiction, person or entity or any court of' law as evidence of this waiver_ 6. Waiver of Setbacks and Other Requirements. Surface Owner understands and acknowledges that the COGCC has rules and regulations That apply to the distance between a wellhead and public roads, production facilities, building units and surface property lines, among other things. Surface Owner hereby waives all setback requirements in COGCC Rule 603, or any successor rule or amendment to the COGCC setback rules,and to any other state or local setback requirements,or other requirements or regulations,that are or become inconsistent with this Agreement or that would prohibit or interfere with the rights of the Oil Companies or their lessees and assignees to explore for and produce the oil and gas in accordance with this Agreement Surface Owner understands, and shall notify parties who purchase all or portions of the Property from Surface Owner,That the Oil Companies may cite the waiver in this section 6 in order to obtain a location requirement exception or variance tinder COGCC rules or from a trial jurisdiction. 7. Governmental Proceedings. a. Surface Owner 'Will Not Object Surface Owner agrees that it will not object in any forma to the use by the Oil Companies of'the surface of the Property consistent with this Agreement and hereby waives any such right to object. Surface Owner further agrees that it will provide such other written approvals and waivers which are reasonably requested by the Oil Companies and consistent with this Agreement, including,but not limited to, all approvals and waivers to drill a well or to conduct oil and gas operations on the Property because of any law or regulation,including any local ordinance and regulations of the COGCC, and including, for example, waivers to state and local setback requirements and to any setback requirements from a surface property line or for an exception location, b. Oil Companies Will Not Meet. The Oil Companies agree that they will not object in any forum to a request by Surface Owner to annex, zone, rezone,plat or 5 ' SEP. 27. 2004 4:40PM ASTRELLA&RICE NO. 0624 P. 7 Q replat all or any portion oi'the Property to the extent such request is consistent with this Agreement 8. Notices of Hearines. Surface Owner shall provide the Oil Companies with written notice not less than thirty(30)days before each heating for consideration of a plat application or other land use application for the Property or portions of the Property that is to be held before the County or other local jurisdiction. 9. Notice to llomeowaers and Builders. Surface Owner shall furnish all builders and developers which purchase all or any portion of the Property and each person or entity who proposes to enter into a contract to purchase a lot which is adjacent to,or any part of which is within, 350 feet from an OR and Gas Operations Area or a pipeline easement, with a plat that shows the locations of the Oil and, Gas Operations Areas, access routes, and pipeline easements,in addition, Surface Owner shall provide written notice to all such purchasers that includes the following: a. they are not purchasing and will not own any rights in the oil, gas and mineral estate in and to the Property; b. there may be ongoing oil and gas operations and production on the surface of the Property within the Oil and Gas Operations Areas, pipeline easements and access routes; c. there are likely to be wells drilled and oil and gas production facilities constricted and installed within the Oil and Gas Operations Areas and Bowlines and pipelines constructed and maintained on the Property; d. heavy equipment will be used by the Oil Companies from time to time for oil and gas drilling and production operations and such operations may be conducted on a 24-hour basis;and e. homeowner associations and buyers of individual lots or homes will be subject to and burdened by all of the covenants and waivers made by Surface Owner in this Agreement, /winding, but not limited to those covenants and waivers; 1) prohibiting the location of arty bulldog, structure, or other improvement within the Oil and Gas Operations Areas;h)waiving objections to the drilling of wells, the construction of facilities, and the conduct of oil and gas operations on the Property consistent with this Agreement and iii) waiving objections to the setback requirements under the rules of the COGCC or any local jmisdietion. 10. Notice of Oil and Gas Operations. The Oil Companies shall provide Surface Owner with nntirc' of drilling operations and subsequent well operations in accordance with COOCC rules and regulations. 6 • SEP. 27. 2404 4:40PM RSTRELlA&RICE NO. 0624 P. 6 11. Impact Mitigation. a. Oil Company Mitigation. The Oil Companies agree that they shall install and maintain at their sole cost and expense such fences,gates and locks around the wells and production facilities as are required by the COGCC. Surface Owner may upgrade fences, gates and locks at its expense and with the consent of the Oil Companies, such consent not to be unreasonably withheld, and provided that such fences, gates and locks comply with COGCC and local regalatinns. b. Surface Owner Mitigation. Except as provided in section 11.a., Surface Owner shall bear all costs and expense to install such noise and visual impact mitigation measures it desires or the County or other local jurisdiction requires at or around the Oil and Gas Operations Areas which are in excess of or in addition to those measures which are required by COGCC regulations for areas which are not high density; provided, however,the operator of the well at the particular OR and Gas Operations Area shill have reasonable discretion to veto or protest the types and locations of impact mitigation measures in order to allow for safe oil and gas operations. 12. Termination of Surface Owner's Agreements. Surface Owner and the Anadarko Entities shall terminate the Swfiaro Owner's Agreement that covers the Property dated August 3, 1994 between Eugene E. and Dinna E. Godmho and Union Pacific Resources Company recorded October 3, 1994 in Book 1461,Page 891,in the Weld County Clerk and Recorder's Office by the execution of the Conn of Termination of Surface Owner's Agreement attached to this Agreement as Exhibit 3, contemporaneously with the execution of this Agreement 13. Individual Liability of Oil Companies. Nothing in this Agreement is intended to create a cause of action by any oil company against any other oil company or to enlarge or diminish any right or interest created by any lease or assigtmrent of lease between or among the Anadarko Entities and any other oil company, including any lessee, farmoutee, or assignee of either of them. The liability of the oil companies to perform any obligation or comply with any t ovenaut hereunder or to comply with any state or local rule or regulation is individual and not joint or collective. This Agreement does not create a joint venture or partnership between or among any of the oil companies which now have or which may in the fixture own oil and gas interests in the Property. The Anadarko entities shall in no event be liable for the acts or omissions of their lessees, assignees of lessees,or the contractors or subcontractors of any of them. 14. Authority to Execute Agreement Each party represents that it has the full right and authority to enter into This Agreement with respect to the surface rights or oil and gas interests it owns in the Property,as applicable. 15. No Waiver of Itights. The Oil Companies do not waive the rights they have T SEP. 21. 2004 4:40PM ASTRA&RICE © NO. 0624 P. 9 pursuant to their respective oil and gas interests to explore for, drill and produce the oil and gas for the Property or for ingress and egress to the Oil and (las Operations Areas, except as specifically provided in this Agreement 16,. Successors and Assigns. This Agreement and all of the covenants in it shalt be binding upon the personal representatives, heirs, successors and assigns of all of the parties, and the benefits of tbrc Agreement shall inure to their personal representatives, heirs, successors and assigns, This Agreement and all of the covenants in it shall be covenants running with the land. • 17. Recording. The Oil Companies shall record this Agreement with the Clerk and Recorder of Weld County and provide evidence to Surface Owner ofthe recording. 18. Governing Law. The validity,interpretation and performance of this Agreement shall be governed and construed in accordance with the laws of the State of Colorado without reference to its conflicts of laws provisions. 19. Severability. If any part of this Agreement is found to be in conflict with applicable laws,such part shall be inoperative,mill and void insofar as it conflicts with such laws;however,the remainder ofthis Agreement shall be in full force and effect In the event that any part of this Agreement would otherwise be unenforceable or in conflict with applicable laws due to the term or period for which such part is in effect,the term or period for which such part of this Agreement shall be in effect shall be limited to the longest period allowable which does not cause such part to be unenforceable or in conflict with applicable laws. 20. Notices. Any notice or other communication required or permitted under this Agreement shall be given in writing either by i)personal delivery; ii) expedited delivery service with proof of delivery;iii)United States mail,postage prepaid, and registered or certified mail with return receipt requested; or iv)prepaid tclecopy or fax,the receipt of which shall be acknowledged,addressed as follows: Anadarko FOP and: Anadarko E&P Company LP Anadarko Land Attention:Mid-Continent Development Land Manager Post Office Box 1330 Houston,Texas 77251-1330 EnCana: EnCaua Energy Resoutees Inc. Attention:1)1 Laud Department 95017a'Street, Suite 2600 Denver,Colorado 80202 Surface Owner: T3ighland Acquisition Group,L.LC. 6297 South Potomac Way Centennial,Colorado 80111 8 SEP.'27. 2004 4:40PM ASTRFI�A&RICE NO. 0624 P. 10 Notices shall be effective upon receipt and any party may change en address by notice to the other parties. 21. Incorporation of Exhibits. Exhibits 1, 2 and 3 are incorporated into this Agreement by this reference. 22. Entire Agreement. This Agreement sets forth The entire understanding among the parties and supersedes any previous communications, representations or agreements, whether oral or written. No change of any of the tens or conditions herein shall be valid or binding on any party unless in writing and signed by an authorized representative of each party. 23. Counterpart Executions. This Agreement may be executed in counterparts, each of whichslatl be deemed an original IN WITNESS WHEREOF, the undersigned parties have caused this Agreement to be executed by a duly authorized tepresentative,to be effective on the date and year first abovewtitten. ENCANA ENERGY RESOURCES ANADARKO E&P COMPANY LP INC. By: By: ! � . / Name: Name: Ja :• = ,mn Ifs: Its: Agent and Attomeydn-Fact ife4 HIGLICAND ACQUISITION GROUP, ANADARKO LAND CORP. L.L.C. EY: By:Name: Names Jame L,Newman Its: Its: Age e3'- _ 9 SEP. 27. 2004 4:41PM ASTRE)y&RICE N0. 0624 P. 11 ACKNOWLEDGMENTS STATEOF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing instrument was acknowledged before me this I day of 5.cp hi,- ,21144,by \Jam os L..0 anew& 1as e frfrittsi urn.Fur -for ANADARKO E&P COMPANY LP. My Commission expires. Oransioni 1,X% Witness my hand and official seaL Ee7 a tl January 7.2016 STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoinginseniment was acknowledged before me this I _clay of 6444.frrib ,2004,by To n'}/,5 L.Ikweovb ,as _ Url-r �vr,4r-,C, 4- for ANADARKO LAND CORP. MyCrmmktnexpires: Jan trnff 'f.ale • Witness my hand and official seal. •nwc�tn lnciszsrleRFat� 4/4 �chtitt a ,l&Q.�- • tarn u Pauli° X7,2006 10 SEP. 27. 2004 4:41PM ASTR LLA&RICE NO. 0624 P. 12 STATE OF COLORADO ) ) ss. County of ) The foregoing instrasment was acknowledged before me this day of ,2004,by as for ENCANA ENERGY RESOURCES INC. My Commission expires: Witness my hand and official seal. Notary Public STATE OF COLORADO ) ) ss. County of ) The foregoing instrument was acknowledged before me this _day of 2004,by as for HIGHLAND ACQUISITION GROUP,L.L.C. My Commission expires; _ Witness my hand and official seal Notary Public It - SEP. 27. 2004 4:41PM ASTR LA&RICE NO. 0624 P. 13 EXHIBIT 1 to Surface Use Agreement dated August 31,2004 between and among Anadarko E&P Company LP,Anadarko Land Corp. EnCaua Energy Resources Inc, and Highland Acquisition Group,L.L.C- Legal Description Lot B of Recorded Exemption No.1467-05-2-RB3105, being part of the North one-half of the Northwest one-quarter of Section 5,Township 1 North,Range 68 West Weld County,Colorado I2 x - K _•a7 p FGAI DFSCRTPTIGN, _ THIS EXHIBIT DOES NOT y LOT 8 OF RE-BIOS, LOCATED IN xI REPRESENT A NONUMENTED ^I THE NORTHWEST 1/4 OF SECTION a .d. BOUNDARY SURVEY AND IS �i 5, TOWNSHIP t NORTH, RANGE 68 INTENDED FOR DEPICTION ONLY. �I VEST OF THE 6TH PM„ COUNTY OF WELD, STATE OF COLORADO. ri al 3 PROPOSE' / EMERGENCY/FIRE 200'R NO EXISTING C L, O SHARED ACCESS BUILD PONE OIL F. GAS ACCESS ACCESS o . 31so ulij / R1•�.. �, i L p�� m _ '� F ,"T <DROWN 5-0J s p � ��. ' 1 ( ``�yL :::R 1 J i <} .•r r� 1 �rf OPERATIONS AREA '»,3, �f - (CURRENT 6 FUTURE) 41 '.i; .- „ ' PROPOSED 30• FLOW o t fa a u "�'�:�; 3150' '-� .�1 LINE EASEMENT '� a o ,l �. _it—Ys 1p • +� ENCASE FLOWLINE �`-^�=.,� ¢ 3 S0' .AT ROAD CROSSING, AT I '�, /J.� PROPOSED SHARED ACCESS •DEVELOPERS EXPENSE •-..,�� '� J ' j� EXISTING 30' FLOW` ?-t .1 LINE EASEMENT IA ' I (RE k24677853 a PROPOSED 3O' FLOW '� 2 W •' OIL/GAS WELL LINE EASEMENT "' •'� • : (DROWN C UNIT kE) >� J .._...�.._. _ OIL k GAS -�- v f OPERATIONS AREA (CURRENT 8 FUTURE) — I ' s,W N schist in- 300' t rte, cm a w co - SEP. 27. 2004 4:41PM ASTRELLA&kICE NO. 0624 P. 15 Exhibit 3 to Surface Use Agreement dated August 31,2004 among Anadarko E&P Company LP,Anadarko Land Corp., EnCarra Energy Resources Inc.and Highland Acquisition Group,L.L.C. • TERMINATION OF SURFACE OWNER'S AGREEMENT THIS TERMINATION OF SURFACE OWNER'S AGREEMENT ("Agreement")is made and entered into this day of ,2004,by and among ANADARKO E&P COMPANY LP, formerly known as Union Pacific Resources Company("Anadarko E&P"),ANADARKO LAND CORP.,formerly known as Union Pacific Land Resources Corporation ("Anadarko Land"), and HIGIiLLAND ACQUISITION GROUP,L.L.C.("Surface Owner"). A. Surface Owner owns or has the option to purchase the surface estate for approximately 54 acres of property located in Weld County, Colorado, in the N/2N'W/4 of Section 5, Township 1 North, Range 68 West, which is hereinafter referred to as the "Property"and specifically described in Exhibit A. B. Union Pacific Resources Company and Eugene E. and Diana E. Godinho entered into a Surface Owner's Agreement dated August 3, 1994 and recorded October 3, 1994 in Book 1461, Page 891 in the Office of fie Clerk and Recorder of Weld County (the"Surface Owner's Agreement"). C. Pursuant to that certain Surface Use Agreement (so called herein) dated , among Anadarko E&P, Anadarko Land, and Surface Owner and others, Anadarko E&P,Anadarko Land and Surface Owner have agreed to terminate the Surface Owner's Agreement. D. This Agreement may be executed in counterparts, each of which shall be deemed an original. NOW THEREFORE, in consideration of the covenants and mutual promises set forth in this Agreement and the Surface Use Agreement, including in the recitals, the parties agree that the Surface Owner's Agreement is terminated and of no further force and effect,effective as of the earlier date of either i)November 30,2004; or ii)the date that Surface Owner sells,assigns or otherwise transfers all or any portion of the Property. S€P. 27. 2004 4:41PM ASTRtE^L,LA&RICE NO. 0624 P. 16 Cie HIGHLAND ACQUisITION GROUP, ANADARKO PSrP COMPANY LP L.L.C. By: By: Name: Name: Its: Its: a ANADARKO LAND CORP. By: Name: Its: ACKNOWLEDGMENTS STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing inshnmment was acknowledged before me this day of ,2004,by as for ANADARKO E&P COMPANY LP, My Commission expires: Witness my hand and official seal. Notary Public 2 - SEP. 27. 2004 4:41PM ASTRI;LA&RICE N0. 0624 P. 17 STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing instrument was acictiowledged before me this day of ,2004,by as for ANADARKO LAND CORP. My Commission expires: Witness my hand and official seal Notary Public STATE OF COLORADO ) ) S- COUNTY OF ) The foregoing instrument was acknowledged before me this day of ,2004 by as for ITEGHLAND ACQUISITION GROUP,L.L.C. My Commission expires: WitlICSS my hand and official seal Notary Public 3 SEP. 27. 2004 4:41PM ASTVR LLA&RICE NO. 0624 P. 18 - c` EXHIBIT A to Termination of Surface Owner's Agreement dated ,2004 between and among Anadarko E&P Company LP,Anadarko Land Corp. and Hiighiand Acquisition Group,L.L.C. Legal Description Lot B of Recorded Exemption No. 1467-05-2 RE3105, being part of the North one-half of the Northwest one-quarter of Section 5,Township 1 North,Range 68 West Weld County,Colorado 4 SEP. 27. 2004 4:41PM ASTRELLA&RICE NO. 0624 P. 19 Notices shall be effective upon receipt and any party may change an address by notice to the other parties. 21. Incorporation of Exhibits. Fsrhibits 1, 2 and. 3 are incorporated into this Agreement by this reference. 22. Entire Agreement This Agreement sets forth the entire understanding among the parties and supersedes any previous communications, representations or agreements, whether oral or written, No change of any of the terms or conditions herein shall be valid or binding on any party unless in writing and signed by an authorized representative of each party. 23. Counterpart Executions. This Agreement may be executed in counterparts, earn of which shall be deemed an original. W WITNESS WHEREOF, the undersigned parties have caused this Agreement to be executed by a duly authorized representative, to be effective on the date and year fast above written. ENCANA ENERGY RESOURCES' ANADARKO E&;P COMPANY IP INC. By: _ By: Name: . Name: Its: Its: HIGHLAND ACQUISITION GROUP, ANADARKO LAND CORP, L.L.C. By: By: Name: Name: Its: Its: • SEP. 27. 2004 4:42PM AST4LA&RICE NO. 0624 P. 20 ACKNOWLEDGMENTS STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing insinmment was acknowledged before me this_ day of 2004,by ,as for ANADARKO E&P COMPANY LP. My Commission expires: Witness my hand and official seal. Notary Public STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing instrument was acknowledged before me this day of 2004,by as for ANADARKO LAND CORP. My Commission expires: Witness my hand and official seal. Notary Public t0 SEP. 21. 2004 4:42PM ASTRELLA RICE Q NO. 0624 P. 21 STATE OF COLORADO ) ) ss. County of)PAlite,. ) A The foregoing instrument was aclatowledgql before me this 3�7- day of V( u5 ,2004,by l3 yl1OAl GA-2e--- - as /� Arty- rae t for ENCANA ENERGY RESOURCES INC. My goaE%P 09ASnaa1 My Con'u. . . +atanthtdral ia7Ol -.4.00-0-1- e} 11 WI " S . h, r and official se • • dt A f 3 otary Public kettlek FP Coe-- STATE OF COLORADO ) ) ss. County of ) The foregoing instrument was acknowledged before me This day of ,2004,by as forTTIGELAND ACQUISTIION GROUP,L.L.C. My Commission expires: Witness my hand and official seal. Notary Public It SEP. 27. 2004 4:42PM ASTRRE LA&RICE Q NO. 0624 P. 22 • Notices shall be effective upon receipt and any party may change an address by notice to the other parties. 21. Incorporation of Exhibits. Exhibits 1, 2 and 3 are incorporated into this Agreement by this reference. 22. Entire Agreement. This Agreement sets forth the entire understanding among the parties and supersedes any previous communications, representations or agreements, whether oral or written. No change of any of the terms or conditions herein shall be valid or binding on any party unless in writing and signed by an authorized reprebentative of each party. 23. Counterpart Executions. This Agreement may be executed in counterparts, each of which shall be deemed an original. IN WITNESS WHEREOF, the undersigned parties have caused this Agreement to be executed by a duly authorized representative, to be effective on the date and year first above written. • ENCANA ENERGY RESOURCES ANADARKO E&P COMPANY LP INC. By: Br Name: Name: Its: Its: HIGHLAND ACQUISITION GROUP, ANADARKO LAND CORP. L.L.C. By: By: Name- Name: Its: Its: • SEP. 27. 2004 4:42PM ASTR4LitA&RICE NO. 0624 P. 23 ACKNOWLEDGMENTS STATE OF TEXAS ) ) ss. COUNTY OF MONTGOMERY ) The foregoing instrument was acknowledged before me this day of ,2004,by ,as for ANADARKO E&P COMPANY LP, My Commission expires: Witness my hand and official seal. Notary Public STATE OP TEXAS ) ) ss. COUNTY OP MONTGOMERY ) The foregoing insfnnnent was acknowledged before me this day of ,2004,by ,as • for ANADARKO LAND CORP. My Commission expires: Winless my hand and official seat Notary Public • I0 act SEP. 27. 2004 4:42PM ASTRELLA&RICE NO. 0624 P. 24 • STATE OF COLORADO ) ) ss. County of ) The foregoing instrument was acknowledged before me this day of ,2004,by as for ENCANA ENERGY RESOURCES INC. My Commission expires; Witness my hand and official seal. Notary Public STATE OF COLORADO ) ) ss. County of p `ed. ) The foregoing instrument was acknow�l1e,dged before me this 2 —` day of August- ,2004,by `¢t'ab i- (4- Prul+haue as )Aa; gite for HIGHLAND ACQUISITION GROUP,L.L.C. My Commission expixs: 4 troC Witness my heard and official seal t- I U URELZABE. unreav w�a�ro Notary Public nee OF cOLORADo my cannTsida.cost.2005 11 Hello