The URL can be used to link to this page

Browse Search

Home My WebLink About910391.tiff RESOLUTION RE: ACTION OF THE BOARD CONCERNING REVIEW OF DUST BLOWING COMPLAINT - DAVID J. STEPHENS WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to Colorado statute and the Weld County Home Rule Charter, is vested with the authority of administering the affairs of Weld County, Colorado, and WHEREAS, the Board, at its regular meeting on April 1, 1991, considered a complaint concerning dust blowing from property located in the W/2 NW/4 of Section 15, Township 4 North, Range 66 West of the 6th P.M. , Weld County, Colorado, said property being owned by David J. Stephens, and WHEREAS, said hearing was continued to April 10, 1991, to allow David J. Stephens time to resolve said matter, and WHEREAS, a hearing before the Board was held on April 10, 1991, at which time the Board deemed it advisable to continue this matter to May 1, 1991, to allow David J. Stephens, property owner, and Ralph Nix, lessee, time to complete a plan committment, and WHEREAS, a hearing before the Board was held on May 1, 1991, at which time the Board deemed it advisable to dismiss said dust blowing complaint against David J. Stephens. NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the dust blowing complaint concerning the hereinabove described property be, and hereby is, dismissed. The above and foregoing Resolution was, on motion duly made and seconded, adopted by the following vote on the 1st day of May, A.D. , 1991. /) () / il BOARD OF COUNTY COMMISSIONERS aila ATTEST: WELD COUNTY OR 0 Weld County Clerk to the Board Gordo y rman in By: / 7 Deputy Clerk to the Board George Kennedy, Pro-Tem11S APPROVED AS TO FORM: � �T?tU�G]• �yk�lC�!✓�� -- , Constance L. Harbert County Attorney C. Kirby wf� d� ? � W. H. Webste 910391 , ,1 ;' / I EXHIBIT Eck a ri:d s atzma. 4-,0 4_ 21454 WELD COUNTY ROAD 33 LA SALLE, COLORADO 80845 f c ' • • f) _. eta 2 , ) C L:L , 1 , )1z,b! 1i•a,-,..�. � ,'� 'LS4""-: -- C.� —ic" -z r1 .� rA (.72C.1.L._'l .71 -24- ^l 1 V 2: ) i� �lirt.t/". jl -7/-,/2 <,‘;, ..:!4?./le. 1!1 1' `,' ' .t..je/< 6rh t /J licAl L �,-.:4- ;U.2cu,,tfr Z . 4� cr,) ! CI i .i // i / r ri/ -z< -��Lc-ie —e�.t (r) t, e< L,i .Cct-Cet .LIC` kit. 0 .�u,�J L F :Lb2•i•i, 1.L NE.Z 12120JiI ci di,/ 5)4C : ./7 ice,--r.-u t/ ,iin /2(;L, -ti CL t� GI,04_ -�CCC .C/6' t-. n N + •' --6Z . teu if.iatoY ? r 7+ ��f r,J/ JJJJ r .J ivi. Lei (. '`, /i f i[.-� 6:..,.t' ,�1 , ILL.). L 4R r :u -c(- �°�Q,' .- �7PP � y /,r `� ri[c'wCrw;L �C1LIt iL J - ' 1---C. ./ 7LNtae.� _�,<LCtt A2elL kCiJ r ChLL-"C.I,L -72-c.; 4/-17 ettZ..� -C: Zr!L-1.LI'L-‘-- .: i 1/4111/2 )8�-Et: et- Alii/it. C.r?c24.. -h.�:/<li L -0_,-.1.--t-L— CZ',..-L, �qq 1 1•rl Gila-(.AE' ;�.k/��.e,...;� l�,y .C h.C, (S'Zti.,._t<!"G-r�. Gk..1, eau, 0 ,,,. . .:7,, * :: �`4i. CC--Lt •ALI: 4-, c .e..,Q,e,-J.2.- 'l.'Lc4. .-7_,A-;? \{,At.- i:,eti -4-. /0 r(23-€ _ .t1.6-1- a?ti It -2.--J .g_t emu«,,, t.l,JH„,.-. � . 4' / �/ c ite tea. 1 ,P E, 1 �r }- l�.c'W ��tA-ur�.41., On. :.T' -.�� ce,�c� x_42- - _4ee.70 x.?.' - .c..._ 1(.Fu{CfrL,H� ,Ct��c. C., `�,c..a.. .Et.l.(trt.�: . .-��Q'G3 C.C;kt'.<<c�., Cetel-za tdt gazmi.. 21454 WELD COUNTY ROAD 33 LA SALLE, COLORADO 80645 >l,^-O-c 3( iCrI1 1, 1Gt. •ti. J�CO.-t . ‘_, Lt C, f J ,ti.L 5 L ;7,),l4.c•-<__ .l d.t_- ��c zi 1,:4 ��.� y4, ,v,,,.- t_ i. f, , Ayet u,„, SC I t ,-4.:..� .it �F A It/titl to /2., -�� . /2..�2t,`G� ..,,,,,..„,i.,_ n.t,,� .,L,e,c+„u„-C(: 2,,,,,e;5.. .. a {.A t_ -tilt `ae,e;eel -4,4_2I Jpi 61-0224 ,14.4 1C,friL- .(i1 Mit&,Ceti..-c� t. 6 Y " t-`-C ,Cle-'C ��t (v'n. ,rnn 9_ = EXHIBIT I 4 EXHIBIT r. 4. EXHIBIT EXHIBIT . . E li EXHIBIT I t% '4,-.: ' EIBIT e � tynn4 MEMORAnDum Board of WilkTo County Commissioners Date March 28, 1991 COLORADO From Bruce T. Barker, Assistant County Attorney -- Telephone Call from David Stephens swear. — —On Wednesday, March 27 , 1991, I received a telephone call from David Stephens regarding the dust blowing case against him which will be heard by the Board on Monday, April 1, 1991 . Mr. Stephens told me that the property has been "taken care of . " He believes that there should be no more dust blowing from the property in the future. I told Mr. Stephens that I would pass this information along to the Board and that I appreciated his call . Mr. Stephens will not be able to attend the Board ' s hearing on April 1st. i Bice T. Barker Assistant County Attorney BTB:sa ottriel41 • (�" 6 iCLERK TO THE BOARD P.o. sox T58 ' GREELEY,COLORADO 80832 (303)3564000 EXT.4225 �i COLORADO, March 25, 1991 David J. Stephens 4050 West 20th Street Greeley, CO 80634 RE: Dust Blowing Complaint for Property Located in W/2 NW/4, Section 15, Township 4 North, Range 66 West of the 6th P.M. , Weld County, Colorado Dear Mr. Stephens: The Board of County Commissioners of Weld County, Colorado, has been informed that dust is blowing from a parcel of land owned by you, as hereinabove described. According to the information received, the soil is moving from said parcel and is causing damage to surrounding properties . Pursuant to Section 35-72-102 (b) , C.R.S. , it is the duty of the owner or occupier of any land in the State of Colorado to prevent soil blowing from such land. The Board will hear t.h mttter al its regularly scheduled meeting on ` 140day, April 1, 1991. t ofik 'sa ': #The meeting will take place in the First Floor Meeting Room, Weld County Centennial Center Complex, 975 Tenth Street, Greeley, Colorado. You may be present at the meeting in order to give testimony relative to the dust blowing problem. The Board requested an inspection of the above-described property, and the inspector will be present at the meeting in order to inform the+ Board what his inspection revealed and recommend treatment of the property. Pursuant to Section 35-72-103 (1) , C.R.S. , the Board of County Commissioners may order certain treatment of the parcel so as to reduce or abate the dust blowing therefrom. If you have any questions concerning this matter, please contact the County Attorney' s Office, 356-4000, ext. 4391. Veil truli y r/l ionaid D. arden, Weld County Clerk to the Board By: 'p i , i t L ,,eils - � -- Deputy Clerk to the Board P 387 472 688 RECEIPT FOR CERTIFIED MAIL NO INSURANCE COVERAGE PROVIDED NOT FOR INTERNATIONAL MAIL (See Reverse) Pent to DAVID J. STEPHENS 4050 WEST 20TH STREET GREELEY, CO 80634 Codified Fee Special Delivery Fee Restricted Delivery Fee Return Receipt showing to whoa and Dale Delivered n — a Return t e to whom. Date and Address of f Delivery d C i07 Al Postage and Fees 5 cies SENDER: .Dttnt ,OfalAsel E{-I-GI • Complete items 1 and/or 2 for additional services. O I also wish to receive the • Complete items 3, and 4a & b. following services (for an extra • Print your name and address on the reverse of this form so fee): that we can return this card to you. • Attach this form to the front of the mailpiece, or on the 1 El Addressee's Address Wok if space does not permit. • Write "Return Receipt Requested" on the mailpiece next to 2• ❑ Restricted Delivery tM article number. Consult postmaster for fee. 3. Article Addressed to: 4a. Article'Number 0q O DAVID J. ` Type P O b STEPHENS 46. Service Type 4050 WEST 20TH STREET ❑ Registered ❑ Insured GREELEY, CO 80634 J�ertified ❑ COD ❑ Express Mail ❑ Return Receipt for Merchandise t 7. Date of Delivery 5 Signature ( n Q— i �` 6. Addressee's Address(Only if requested and fee is paid) 6. Signature (AgedaiR 2 6 PS Form 3811, October 191`90 ad&Giro:tlwo—araaet DOMESTIC RETURN RECEIPT DATE : 3k0/1 / TIME : /.9 ; CC DUST COMPLAINTS Name , Address , and Telephone Number of Complainant: -24) / q /5-11 14) 3 3 5�zec..� Oe: ,f0b9_C S4 y- 9, Description of Property From Which Dust is Blowing: -5 1 s Lo (� �� .T y aJ 6.)z/cxy+ is---44 --( r�l .i � / cX-� it??A9f. -if i/' 20s5-,7I �Sz (5-'7 Description of Damage to Public or Private Property: f—T) 12c- rie Ce� —� n 151304 v Name , Address , and Telephone Number of Owner or Operator of Property: / 1-,. S (C16 loll GI`(Lf5 L—re—c-1 i G.� y. ..LE "MID v (`\3oGc_pc Other Information: *e?>_ Follow-up: C— ,..+2-;Lk{ %/-fD • 4-,, ASK THE CCNPT_AINANT TO PUT THIS _INFORMATION IN WRITING AND SEND THE SAME TO : CLERK TO THE BOARD , P . O. BOY 758 , GREELEY , CO 80632 . UNITED STATES F"L 4302 W. 9' ST. ROAD DEPARTMENT OF C._1SERVATION GREELEY, L., 80634 AGRICULTURE SERVICE (303) 356-6506 March 28, 1991 Bruce Barker Office of County Attorney P. O. Box 1948 ,_7 r r Greeley, CO 80632 Al . , Jcl t), hi RE: Soil Blowing Complaint - Lot B, Section 15 T4N R66W. Dear Mr. Barker: We reviewed the situation on 3/26/91: 1) The acreage in question was in onions during the 1990 crop year. 2) The field had been chiseled from north to south (either last fall or earlier this spring) to create a ridged soil surface. 3) The southern portion of the field then had emergency tillage performed (chiseled NE to SW in alternate strips) to minimize wind erosion. Date of emergency tillage activity is not know. The emergency tillage activity was partially effective. 4) The field was being plowed using a rollpacker on the date of inspection (3/26/91) . Our recommendation for the short term is to create and maintain a ridged soil surface with ridges oriented in NE to SW direction. We recommend trying to keep the ridge roughness as close to the k=. 5 as possible, and as late as possible for the 1991 crop being grown. Refer to the attached soil surface ridge roughening standard and specification. For a long term solution, we recommend the soil conservation plan (approved 12/10/90) , be implemented as soon as possible to reduce future wind erosion problems . Sincerely, Frank Riggle District Conservationist Attachment enclosed mdr/srp 0114'7414 UNITED STATES DEPARTMENT OF AGRICULTURE SOIL CONSERVATION SERVICE COLORDO Technical Guide Section IV All Field Offices April 1988 STANDARD AND SPECIFICATIONS ti3ti� Qtr� r SURFACE ROUGHENING - 609 ^ �N P STANDARD �, PR 1988 v Ri Definition `o �� fD Oti �0 O4 Roughening the soil surface by ridge or clodforming til *4 ‘ti SVEZt Purpose To temporarily protect cultivated land against soil loss from erosive winds , especially during critical erosion periods . Conditions Where Practice Applies On cropland that is in danger of being eroded by wind because of insufficient vegetation cover, cloddiness or roughness , or where other practices fail to control erosion . Planninq Considerations A. A tillage speed of 3-1/2 to 4-1/2 mph will usually give the best results in producing maximum cloddiness . B. If irrigation water is available , consideration should be given to establishing strips of fast—growing cover. C. Straw mulching or use of chemical soil stabilizer are expensive , but are o `ten the only effective emergency measure for protection of bare shady soils . D. Provisions should be made to establish vegetation on unprotected soils as soon as possible . E. Implements should be adjusted so chisel or shovel points run behind tractor tracks . Soil pulverized by the tractor is vulnerabl : to the wind . F. Disks whi :h further pulverize the soil should not be used for surface roughening . G. Surface roughening is an expedient to reduce wind erosion and does not provide long—term erosion control benefits . 9f1 (Page 1 of 3) TGN #231 (Rev . 4/88 H. Surface roughening should be carried out before wind erosion occurs , but may have to be performed during a wind event if clods are destroyed and the soil surface becomes smooth . SPECIFICATIONS A. Application: Use of the practice will be confined to providing preplanned protection from wind erosion or cultivated land where no other practical alte -natives exist. Field investigations should indicate that sufficient roughness and cloddiness will result before recommending surface roughening . Surface roughening is applicable following low residue crops . 8 . Size and Spacing of Furrows : The effectiveness of this practice depends on the size and spacing of the furrow and on the cloddiness and stability of the furrow ridges . The effectiveness is determined by Chart No . 1 . Any combination of ridge height and spacing with a value of 0.80 or less will be effective in reducing wind erosion . C. Residue Use : Maintain existing residue as much as possible . D. All surface roughening will be performed at right angles to the anticipated wind direction . An intermediate tillage speed of 3.5-4.0 mph usually provides good roughness and cloddiness without pulverizing the soil . Low speeds are desirable when the compact soil horizon is relatively unstable and close to the soil surface . When deep tillage is necessary to find a clos forming horizon , higher speeds may be necessary to lift the clods to the surface . A tillage depth of 3-6 inches is often sufficient to bring up compact clods . (Page 2 of 3) T6N #231 (Rev . 4/88) ",`on. EMERGENCY TILLAGE Chart #1 _ o \ :,.. 1 N �` -- =_- , _ - • -_s. •- -- •- el -- � �._ �w�w.•.. a ss �mrss�n�s. I I ■s►Y�, _• it t; 1I I . :4 . u =- _ _ sue- _ W _ _ Ixl N = � � .---- a It W ud ��S�� _ I.. r IL' 1 alV. _._ _ p1 U W i Z �� e N = , 1- IY • i7 �`t-r��=tL�:id W .. G = . -:=a�—= - O O O O N ``pp v. a. Ix CC i= W dr. --- 0 , I n ee cc S IN C J - I� • �wdiw�w�w� - _ Y L. .> IL -w�■ � Ywl lww—wd J www 7 \ lm�aw�o IL .-• 3 • w w®wIS1 .1 Y\w.Yl O ��YO�OtA . - IL - _== o =_ _ — —L_W _ �_• vaiI -- — • psi I- Cis n =� _ r FMB �S _ - SO - IN ___ N _ Yw1• �w ®mspa��wa— • -- 'OHO. i. 1.. � . . I I 1 i . .. . r ,t 4,0 yr 0O. In A v N � 11 n r .L/� S3N3IQ - 1W3001 flail (Page 3 of 3 ) TGN 11231 (Rev. 4 /88) illinnlill- (May, 1988 ) SURFACE ROUGHING ,Lode 609) Greeley Field Office Specifications: rTillage specifications will be based upon the following soil groupings by Wind Erodibility Grouping (WEG). WEG 1 & 2: Very fine, fine and medium sands to loamy very fine and fine sands Implements: Chiseling for surface roughing is not recommended.. LISTERS should be used exclusively for this soil grouping. 8"-14" lister bottoms should be used Optimum spacing will be 24"-48" respectively, to depths of at least 6" or greater. Depth will depend on subsurface moisture and should be worked to a depth adequate to produce clods and a 6"effective ridge height after tillage. Tillage shall be performed at right angles to prevailing winds when possible. In most cases, prevailing erosion winds are from the northwest traveling to southeast. All tillage operations should be performed at speeds of 2 to 4 miles per hour. Speeds above this range will induce soil pulverization. WEG 3: Fine, medium and course sandy loams Implements: LISTERS - 8-14" lister bottoms with 24-48" spacing 6-8" tillage depth or at depth which will produce a 6" effective ridge tillage speed: 2-4 m.p.h. CHISEL PLOW:_ plow with 2-4" twisted points with 24-30" spacing 8-10" tillage depth or deep enough to produce clods tillage speed: 2-4 m.p.h. WIDESPACE CULTIVATOR or HEAVY DUTY CULTIVATOR 6-8" V-shaped sweeps with 24-42" spacing, 4-6" tillage depth or to depth needed to produce clods tillage speed: 2-4 m.p.h. Tillage shall be performed at right angles to prevailing winds when possible. In most cases, prevailing erosion winds are from northwest to southeast. 2 SURFACE ROUGHING (Code.609) prmN WEG 4, 6 & 7: Clays, silty clays, silt loams, clay loams, silty clay loams, silts 1 Implements: CHISELS: 2-4" standard point chisel plow with 24-48" spacing 4-8" tillage depth or depth necessary to produce clods tillage speed: 2-4 m.p.h. Twisted point chisels will also be satisfactory. HEAVY DUTY CULTIVATOR: Field Cultivators with widths of 4-8" may be used with spacing of 16-36" 4-8" tillage depth or depth sufficient to produce clods SUBSOILER: Subsoilers will probably be adequate to provide a roughened surface to prevent blowing. However, field investigations should be made to determine if standard spacing and cloddy surface produced will be adequate to prevent further soil movement. Tillage speed should be maintained at 2-4 m.p.h. Tillage should be performed at right angles to prevailing, damaging winds. In most cases, damaging winds are northwest to southeast. WEG 5: Loams, sandy clay loam, sandy clays Implements: CHISELS: 2-3" twisted point chisels are preferred at a spacing of 24-48" 6-8" tillage depth or a depth necessary to produce clods WIDE SPACE OR HEAVY DUTY CULTIVATOR: 2-6" field cultivator should be adequate with 24-48" spacing 4-8" tillage .depth or sufficient depth to produce clods Tillage speed should be maintained at 2-4 m.p.h. Tillage should be .performed at right angles to damaging winds. GENERAL: A- sufficient or an adequate clod size will be in the 3-6" range. MOISTURE REQUIREMENTS: Usually in WEG 3, 30-35% plus moisture of field capacity will be required to produce clods. For WEG 4 thru 7, 25% plus moisture of field capacity will be necessary to produce clods. i,; If climatic and wind conditions persist, procedures may have to be repeated to pre- vent further erosion damage. Inspections should be made prior to second operation to determine moisture %. Surface Roughening(acre) 609 Planning considerations for water quantity and quality Quantity 1. Effects on the water budget, especially on volumes and rates of runoff and infiltration. Quality 1. Effects on erosion and the movement of soil and soil-attached substances by wind. 2. Effects on erosion and the movement of sediment, and soluble and sediment- attached substances carried by runoff. SCS Supplement October 1988 • RECOMMENDED RIDGING, SPACING & HEIGHT FOR FOOD SECURITY ACT ALTERNATE CONSERVATION SYSTEM June 1988 TABLE 2 Soil Ridge Roughness--K FURROW SPACING MEASURED IN WIND EROSION DIRECTION - INCHES 4 6 8 10 12 14 16 18 20 24 28 32 36 40 44 48 1 .6 .7 .7 .8 .8 .8 .8 .9 .9 .9 .9 .9 .9 .9 1 .0 1 .0 0. 5 2 .5 .5 71 .6 .6 .6 .6 .6 .7 .7 .7 .8 .8 .8 .8 3 1 .5 .5 .5 .5 .5 .5 .5 .5 1 .6 .6 .6 .6 .6 .7 4 1-al .5 .5 .5 .5 .5 .5 .5 .5 .5 .5 1 .6 .6 m fi 5 .6 ' .5 .5 .5 .5 .5 .5 .5 .5 .5 6 .7 .6 1 .5 .5 .5 .5 .5 .5 .5 1111 0 . 5 n 7 .8 .7 .6 I .5 .5 .5 .5 .5 cu = 8 .8 .7 .7 .6 .6 1.5 .5 c 0 9 .8 .8 .7 .7 .6 .6 10 .8 .8 .8 .7 . 7 11 .8 .8 .8 .8 12 .8 .8 .8 .8 6 - 10 IN. SPACING 2 - 3 IN. HEIGHT • 12 - 16 IN. SPACING 3 - 4 IN. HEIGHT 18 - 24 IN. SPACING 3 - 5 IN. HEIGHT 28 - 40 IN. SPACING 4 - 7 IN. HEIGHT 44 - 48 IN. SPACING 5 - 8 IN. HEIGHT !;`).'_c ".. K-2 Frank Riggle Page 2 March 25 , 1991 in the Commissioners First Floor Meeting Room, Weld County Centennial Center Complex, 915 Tenth Street, Greeley, Colorado . I would therefore like to receive the report no later than Friday, March 29 , 1991 , so that I may have the information ready for the Board' s hearing. If you should have any questions or comments concerning this letter, please feel 'free to all call me at 356-.4000 , Ext . 4391 . `Sincerely, / 1.> _---�_ uce T. BArker Assistant Weld County Attorney BTB: rm Enc . tin • s,... t ''( 'r lair OFFICE OF COUNTY ATTORNEY PHONE(303) 356-4000 EXT_4'191 1611 I, ---- P.O. BOX 194<', GREELEY. COLORADO 80632 . _ ' • COLORADO March 25 , 1991 Frank Eckhardt 21454 WCR 33 La Salle, CO 80645 1 RE : Dust Blowing Complaint for Property Located in the West Half Northwest Quarter of Section 15 , Township 4 North, Range 66 West of the 6th P .M. , Weld County, Colorado Dear Mr . Eckhardt : Thank you for calling in a dust blowing complaint on March 20 , 1991 . You complaint concerns property located in the West Half Northwest Quarter of Section 15 , Township 4 North, Range 66 West of the 6th P .M. , Weld County, Colorado . According to your complaint, dust has been blowing from the parcel and has ,caused damage as a result . I respectfully request that you provide the Board of County Commissioners with a note or letter describing the following : 1 . Your name, address , and phone number. 2 . The extent of the dust blowing and the legal description or other description of the location of the parcel from which the dust is blowing . 3 . The name of the owner of the parcel. 4 . The damage to public or personal property caused by such dust blowing . I know that the above listed information seems superfluous , but the Board must have this information in written form from the complainant in order for the complaint to proceed . Please send the note or letter to : - Clerk to the Board of County Commissioners of Weld County, P . 0. Box 758 , Greeley, Colorado 80632 . It is important that the Clerk to the Board receive this letter or note as soon as possible'. Marjorie Dowdy Page 2 March 25 , 1991 Based upon the information supplied in your telephone call , the Board of County Commissioners has asked for an inspection of the subject parcel . The inspection will determine the extent and effect of the dust blowing. The Board will hear the matter of the dust complaint on Monday, April 1 , 1991 . The hearing will take place in the Board ' s First Floor Meeting Room, Centennial Center Complex, 915 Tenth Street, Greeley, Colorado, at 9 : 00 a.m. You may wish to be present on that date to testify as to the extent and effect of the dust blowing . If you should have any questions or comments concerning this letter, please feel free to call me at 356-4000, extension 4391 . Vey-,truly yours , r, uce T. Barker Assistant County Attorney BTB: sa UNITED STATES F'-"L 4302 W. 9' ST. ROAD DEPARTMENT OF C...ASERVATION GREELEY, t..! 80634 AGRICULTURE SERVICE (303) 356-6506 March 28, 1991 Bruce Barker ''� L,i Office of County Attorney P. O. Box 1948 o s '_D COUNTY Greeley, CO 80632 ATTO%tNEY'S OFFICE 1 RE: Soil Blowing Complaint - Lot B, Section 15 T4N R66W. Dear Mr. Barker: We reviewed the situation on 3/26/91: 1) The acreage in question was in onions during the 1990 crop year. 2) The field had been chiseled from north to south (either last fall or earlier this spring) to create a ridged soil surface. 3) The southern portion of the field then had emergency tillage performed (chiseled NE to SW in alternate strips) to minimize wind erosion. Date of emergency tillage activity is not know. The emergency tillage activity was partially effective. 4) The field was being plowed using a rollpacker on the date of inspection (3/26/91) . Our recommendation for the short term is to create and maintain a ridged soil surface with ridges oriented in NE to SW direction. We recommend trying to keep the ridge roughness as close to the k=. 5 as possible, and as late as possible for the 1991 crop being grown. Refer to the attached soil surface ridge roughening standard and specification. For a long term solution, we recommend the soil conservation plan (approved 12/10/90) , be implemented as soon as possible to reduce future wind erosion problems. Sincerely, a_eL,4,4:, cc Frank Riggle District Conservationist Attachment enclosed mdr/srp UNITED STATES DEPARTMENT OF AGRICULTURE SOIL CONSERVATION SERVICE COLORDO Technical Guide Section IV All Field Offices April 1988 STANDARD AND SPECIFICATIONS �1g‘g2Q2122 SURFACE ROUGHENING — 609 ^6ti 2Q 0 APR 1988 O STANDARD F.1RAC ti GCO Definition or ��D S O Roughening the soil surface by ridge or cIodforming ti ��Sb£Z�� Purpose To temporarily protect cultivated land against soil loss from erosive winds , especially during critical erosion periods . Conditions Where Practice Applies On cropland that is in danger of being eroded by wind because of insufficient vegetation cover, cloddiness or roughness , or where other practices fail to control erosion . Planning Considerations A. A tillage speed of 3-1/2 to 4-1/2 mph will usually give the best results in producing maximum cloddiness . B. If irrigation water is available , consideration should be given to establishing strips of fast—growing cover. C. Straw mulching or use of chemical soil stabilizer are expensive , but are often the only effective emergency measure for protection of bare shady soils . D . Provisions should be made to establish vegetation on unprotected soils as soon as possible . E. Implements should be adjusted so chisel or shovel points run behind tractor tracks . Soil pulverized by the tractor is vulnerable to the wind . F . Disks which further pulverize the soil should not be used for surface roughening . G. Surface roughening is an expedient to reduce wind erosion and does not provide long—term erosion control benefits . (Page 1 of 3) TGN #231 (Rev . 4/88) ' H. Surface roughening should be carried out before wind erosion occurs , but may have to be performed during a wind event if clods are destroyed and the soil surface becomes smooth . SPECIFICATIONS A. Application: Use of the practice will be confined to providing preplanned protection from wind erosion or cultivated land where no other practical alternatives exist. Field investigations should indicate that sufficient roughness and cloddiness will result before recommending surface roughening . Surface roughening is applicable following low residue crops . B. Size and Spacing of Furrows : The effectiveness of this practice depends on the size and spacing of the furrow and on the cloddiness and stability of the furrow ridges . The effectiveness is determined by Chart No. 1 . Any combination of ridge height and spacing with a value of 0.80 or less will be effective in reducing wind erosion . C. Residue Use : Maintain existing residue as much as possible . D. All surface roughening will be performed at right angles to the anticipated wind direction . An intermediate tillage speed of 3.5-4.0 mph usually provides good roughness and cloddiness without pulverizing the soil . Low speeds are desirable when the compact soil horizon is relatively unstable and close to the soil surface . When deep tillage is necessary to find a clos forming horizon , higher speeds may be necessary to lift the clods to the surface . A tillage depth of 3-6 inches is often sufficient to bring up compact clods . (Page 2 of 3) T6N 44231 (Rev . 4/88) ' ' • EMERGENCY TILLAGE Chart #1 ... _ - O --.) O ^..----, s m=_____ ! lito� "I-, I Q in ��a�• e • — �� '.. n� �.�� i ! , r mkt. , � il, . , I . , ti i .,.• • , I • , , I w I �i ,..o, .i� '„ I1 , • • 1 c. cz . s _ - _ -a= - —=--- Y Z . W --- W N = �_ S M gm W r4.. Z O Z O e- - - _ z M = = U S 1i�.- �� OdJ I Z ��.� b F.- = C = - ��-�_ y ,� Z O a. \t'�a�L S� - L O 4 y 1I- III ^�i Pi 3 - •-� �■ - e f wag CC LLI pp _ C.) 74 74Z it ��a ii 1 1 W v e O ■ ...NISI GLW Iii. Is .0 O 'I•. ' 1 I d 0 e...___�< -.-_ __- _ O �� _-__ --�`4! - • �= O� _ - -�� J •7s- !- IL —gA - '- . —! - i - WI s�=_��0 8 174-0 n ^• � n .• M ••• n n (1.0'.11.j`fi) .., S71O11 • 1101714 70OH (Page 3 of 3 ) TGN 11231 (Rev. 4 /88) Illillialla (May, 1988 ) SURFACE ROUGHING ,Code 609) Greeley Field Office Specifications: rallS Tillage specifications will be based upon the following soil groupings by Wind Erodibility Grouping (WEG). WEG 1 6 2: Very fine, fine and medium sands to loamy very fine and fine sands Implements: Chiseling for surfaCin roughing is not recommended. LISTERS should be used exclusively for this soil grouping. 8"-14" lister bottoms should be used Optimum spacing will be 24"-48" respectively, to depths of at least 6" or greater. Depth will depend on subsurface moisture and should be worked to a depth adequate to produce clods and a 6"effective ridge height after tillage. Tillage shall be performed at right angles to prevailing winds when possible. In most cases, prevailing erosion winds are from the northwest traveling to southeast. All tillage operations should be performed at speeds of 2 to 4 miles per hour. Speeds above this range will induce soil pulverization. WEG 3: Fine, medium and course sandy loams Implements: LISTERS - 8-14" lister bottoms with 24-48" spacing 6-8" tillage depth or at depth which,will produce a 6" effective ridge tillage speed: 2-4 m.p.h. CHISEL PLOW:- plow with 2-4" twisted points with 24-30" spacing 8-10" tillage depth or deep enough to produce clods tillage speed: 2-4 m.p.h. WIDESPACE CULTIVATOR or HEAVY DUTY CULTIVATOR - 6-8" V-shaped sweeps with 24-42" spacing 4-6" tillage depth or to depth needed to produce clods tillage speed: 2-4 m.p.h. Tillage shall be performed at right angles to prevailing winds when possible. In most cases, prevailing erosion winds are from northwest to southeast. ©1 r.).'An4° 2 SURFACE ROUGHING (Code 6°9) 1 \ WEG 4, 6 & 7: Clays, silty clays, silt loams, clay loams, silty clay loams, silts Implements: CHISELS: 2-4" standard point chisel plow with 24-48" spacing 4-8" tillage depth or depth necessary to produce clods tillage speed: 2-4 m.p.h. Twisted point chisels will also be satisfactory. HEAVY DUTY CULTIVATOR: Field Cultivators with widths of 4-8" may be used with spacing of 16-36" 4-8" tillage depth or depth sufficient to produce clods SUBSOILER: Subsoilers will probably be adequate to provide a roughened surface to prevent blowing. However, field investigations should be made to determine if standard spacing and cloddy surface produced will be adequate to prevent further soil movement. Tillage speed should be maintained at 2-4 m.p.h. Tillage should be performed at right angles to prevailing, damaging winds. In most cases, damaging winds are northwest to southeast. WEG 5: Loams, sandy clay loam, sandy clays Implements: CHISELS: 2-3" twisted point chisels are preferred at a spacing of 24-48" 6-8" tillage depth or a depth necessary to produce clods WIDE SPACE OR HEAVY DUTY CULTIVATOR: 2-6" field cultivator should be adequate with 24-48" spacing 4-8" tillage .depth or sufficient depth to produce clods Tillage speed should be maintained at 2-4 m.p.h. Tillage should be performed at right angles to damaging winds. GENERAL: A sufficient or an adequate clod size will be in the 3-6" range. MOISTURE REQUIREMENTS: Usually in WEG 3, 30-35% plus moisture of field capacity will be required to produce clods. For WEG 4 thru 7, 25% plus moisture of field capacity will be necessary to produce clods. If climatic and wind conditions persist, procedures may have to be repeated to pre- vent further erosion damage. Inspections should be made prior to second operation to determine moisture %. o . ✓3.'-� �-'A. Surface Roughening(acre) 609 Planning considerations for water quantity and quality Quantity 1. Effects on the water budget, especially on volumes and rates of runoff and infiltration. Quality 1. Effects on erosion and the movement of soil and soil-attached substances by wind. 2. Effects on erosion and the movement of sediment, and soluble and sediment- attached substances carried by runoff. SCS Supplement October 1988 RECOMMENDED RIDGING, SPACING & HEIGHT FOR FOOD SECURITY ACT ALTERNATE CONSERVATION SYSTEM June 1988 TABLE 2 Soil Ridge Roughness--K FURROW SPACING MEASURED IN WIND EROSION DIRECTION - INCHES 4 6 8 10 12 14 16 18 20 24 28 32 36 40 44 48 1 .6 .7 .7 .8 .8 .8 .8 .9 .9 .9 .9 .9 .9 .9 1 .0 1 .0 0 . 5 2 .5 .5 .5 1 .6 .6 .6 .6 .6 .7 .7 .7 .8 .8 .8 .8 3 1.5 4 t .5 .5 .5 .5 .5 .5 .5 .5 .5 .5 1 .6 .6 v ` u 5 .6 1 .5 .5 .5 .5 .5 .5 .5 .5 .5 6 .7 .6 f .5 .5 .5 .5 .5 .5 .5 0 . 5 o, 7 .8 .7 .6 1 .5 .5 .5 .5 .5 = 8 .8 .7 .7 .6 .6 .5 .5 v -0 9 .8 .8 .7 .7 .6 .6 o: 10 .8 .8 .8 .7 .7 11 .8 .8 .8 .8 12 .8 .8 .8 .8 6 - 10 IN. SPACING 2 - 3 IN. HEIGHT 12 - 16 IN. SPACING 3 - 4 IN. HEIGHT 18 - 24 IN. SPACING 3 - 5 IN. HEIGHT 28 - 40 IN. SPACING 4 - 7 IN. HEIGHT 44 - 48 IN. SPACING 5 - 8 IN. HEIGHT K-2 Hello