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HomeMy WebLinkAbout2.0 BOCC Staff Report 12.14.1992REQUEST: BOCC 12/14/92 PROJECT INFORMATION AND STAFF COMMENTS Floodplain Special Use Permit to allow for the Replating of 10 lots within Ranch at Roaring Fork, Phase IV, Filing III. APPLICANT: John B. Elder LOCATION: Located in Sections 25 and 361, T7S, R88W of the 6th P.M. SITE DATA: Approximately 16.8 acres in size. Originally proposed for 17 lots, replat request reduces filing to 10 lots. WATER: Central Water alt,,: Central Sewer EXISTING ZONING: P/D ADJACENT ZONING: A/RJRD I. RELATIONSHIP TO THE COMPREHENSIVE PLAN The subject property is located in District A - Carbondale Urban Area of Influence, and District F - River/Floodplain Severe Environmental Constraints as designated on the Comprehensive Plan Management District's Map. II. DESCRIPTION OF THE PROPOSAL A. Site Description: The Ranch at Roaring Fork is located approximately one (1) mile east of the Town of Carbondale, with all residential developme t located south of State Highway 82. A vicinity map is attached on page B. Development Proposal: Phase IV, Filing III of the Ranch at Roaring Fork is located at the northwest corner of the development, and was originally platted in 1978. The original subdivision design called for 17 single family dwelling units. The original configuration of this portion of the P/D is shown on the attached bulueline. Since the time of the original platting, a portion of the land within Phase IV, Filing III was identified as jurisdictional wetlands, hence making development of the original design difficult. Th portion of the property that includes delineated wetlands is shown on page. 1 The applicant proposes to fill areas of wetlands and undertake compensatory measures consistent with the approved 404 permit (discussed fully below). The on will result in a shifting of the floodfringe line towards the Roaring Fork River. The revised floodfringe line is shown on the attached blueline submitted by the applicant. FEMA only requires notification for amendments to the floodway line, which is not modified by this proposal. C. Garfield County Floodplain Regulations. Dan Cokely, EIT with Schmueser Gordon Meyer, determined in a November 11, 1992 Iett'er that a majority of the property lies within the 100 -year floodplain boundary of the Roaring Fork River. The location of the existing and revised floodplain line is shown o he attached blueline. Mr. Cokely's 11-11-92 letter is attached on page 7• . Section 6.08.01 -requires that any development in the floodplain shall be required to obtain a Special Use Permit. The following specific issues must be addressed within this process: 1.) To ensure that all necessary permits have been received from those governmental agencies from which approval is required by federal or state law, including Section 404 of the Federal Water Pollution Control Act Amendments of 1972, U.S.C. 1344; 2.) To determine whether proposed building sites will be reasonably safe from flooding, and that the structure will be in compliance with the applicable provisions for uses and standards of construction set forth in the Zoning Resolution; 3.) To determine if the proposed development is located in the floodway. If Iocated in the floodway, assure that encroachment provisions of Section 6.09.01(1)(A) are met; 4.) To assure that adjacent communities, the Colorado Water Conservation Board and Federal Emergency Management Agency have ben notified of the proposed watercourse alteration or relocation; and 5.) To assure that the carrying capacity of the altered/relocated watercourse is maintained. III. MA.LO_R ISSUES AND CONCERNS 1. Necessary Permits: Mr. Elder has obtained the required 404 Permit dated M arch 10, 1992 for the placement of fill in the floodplain. The permit allows for the applicant to discharge 2,300 cubic yards of clean fill into 0.36 acres of wetland. Compensation will consist of a tree and shrub buffer of 0.48 acre planted at the rear of lot lines of the 10 proposed lots, to compensate for 0.16 acre of wetland fill at a ratio of 3 to 1. Compensatory mitigation will also take place near the Roaring Fork River. The applicant will create 0.30 acre of emergent wetland in an existing low flow irrigation channel about 900 feet from the fill site. The wetland creation will compensate for the remaining 0.2 acre of wetland fill at a ratio of 1.5 to 1.he location of the proposed wetland fall and mitigation is shown on page `'7.. A coy of the 404 permits, including conditions, is attached on pages /Q 'al • 2 2. Building Sites. The applicant has submitted documentation regarding building envelopes for the 10 replated lots. None of these building envelopes are located within the floodway. It appears that the potential exists for these envelopes to encroach into the revised flood fringe area. Garfield County requires that the foundation of each of these structures be filled at an elevation of at least 1(one) foot above the 100 -year floodplain. 3. Floodway Encroachment. As indicated on the replat, the floodway crosses a portion of lots 6, 7, and 8. The placement of fill does not encroach on the floodway, therefore, the applicant's engineer does not anticipate that the fill will adversely affect the efficiency of or restrict the flow capacity of the designated floodplain so as to cause damage to others. 4. FEMA and Local Jurisdictions. FEMA does not requirenotification for fill or other activities outside of the floodway line. Therefore, no notification or administrative processes are necessary. The applicant's engineer has concluded that there will be no changes to the watercourse during a 100 -year flood event. REPLATING_REQUIREM ENTS The Floodplain Special Use Permit is a prerequisite to replating this portion of the Ranch. The applicant has submitted the following information in support of the replating request: 1.) Engineering Report on waste water treatment capability to serve the 10 lots; 2.) Engineering Report on domestic water. The documents confirm that the subject lots are included in and are a part of all engineering calculations for domestic water and wastewater treatment. The proposal will reduce total lots connected to the water and wastewater system by 7 lots, as originally conceived. One issue not yet resolved is the need for a revised Subdivision Agreement to address necessary improvements. The original agreement, entered into on September 25, 1978, called for the County to hold lot #59 as security for improvements. The replat proposal eliminates Lot 59. A new agreement will need to be finalized, and include the appropriate security to ensure completion. Staff also recommends that the proposed fill be included within the agreement. YSUGGESTED FINDINGS 1. That proper publication and public notice was provided as required by law for the hearing before the Board of County Commissioners. 2. That the hearing before the Board of County Commissioners was extensive and complete, that all pertinent facts, matters and issues were submitted and that all interested parties were heard at the hearing. 3. That the application is in compliance with the Garfield County Zoning Resolution of 1978, as amended. ft 3 4. For the above stated and other reasons, the proposed use is in the best interest of the health, safety, morals, convenience, order, prosperity and welfare of the citizens of Garfield County. V. RECOMMENDATION Staff recommends approval of the Special Use Permit based on the following conditions: 1. All representations of the applicant, either within the application or stated at the public hearing before the Board of County Commissioners, shall be considered conditions of approval unless otherwise stated before the Board. 2. All required building permits will be obtained. Elevation certificates will be required to ensure that all structures will be located at least one (1) foot above the floodplain line indicated on the bluelines submitted with the application. 4 FRJtigE •. • RAN EL • ',IT. CAVR�iS �i�+ �0.7:. :� .• 1 ����w.vim` ♦. / ` `-1 — Morris a •\ RELAY • 11�_ _ 1 � 1 • • tr o o F Ex15 t111G / mum LA11L / kIGMWAY PQv LAME MIGN ..Y EXTENSION •1r1 1992 R) iCH AT FtO/kAir6 FORK =EGVEST1[I 41 _ CNITA . mime 1 SLE %AZ 241 -TY -w: E a -►OAJtItia FORK Mae MEE • r • r' _2 ti+a LTAT101� •• •• n�V 1D C1VL 1C + • �� — tae NOPit ' praL1TT � z-arr' ' trms.TLx1E g,►,�•,wtILL A7tOOLJG710M FJrCIFACIL.... EIDER' L.O. P. APDL CAT1 ON Loixrar MAP Rik AT ,ro FMK ZAILTIa.a CO r1Y, coLOR.a 'o _MI IsC1d . . wad FIGURE A. St X6115 ARGHrTECT5 :GLfl14100CP snrngs, CO[.DRADo /1 • •..7•......r••... . t •••'\ —ss�� EXISTN6 5s O \ LIFT STATION \ $otr Exit GOTS P SC ]S:, FIL7tt6 JQ \ FLATTED 9-5. Tel CUMMINS Cr E:XI GTPG urian' SERMCF. ROAD — ~ RELCCATED UnLITY ;0,4_ AGCZS5 EASe-E1T O ExisTra Ea] ♦ ELDER L:O.P AFPUCATiOM PPS 5Eb RAT MOc1F1cA--r 1 Fo+11GH AT ROARING FORK C -AFIELD CLifiiTY, GOLOSACO Inn a. OP ACOE/EPiO WETLAND 'DELINEATION LINE. OF• PPtOF D WE/LAND FILL F OGFiEfNFtzED WwrLAO FILL !OO YEAR FLCdD PLAIN FLoCOAY �1` hG 0 30• FT F'P,On r !ULDING E£TL3AC SURREY STREE.T 4D •F.X15rr • • • AME3vE-D FIGURE F Cr APPLICATION PROPOSED FILL. MLA REDLCE.D FROM O.q$ ACRES ro o.sto AGReS. SU .SIGNS ARCHITECTS ..GLE-44\Aeoccl SPF1NGS, COLORADO FIGURE F-2. ARZAC E•+Ert•r� Ars ANO 9HFcves Asx, SEE FIGURE "G') O 30� GC' 124 PLCOnWAY✓ r a / SCNMUV.; November 11, 1992 .ORDON M 1'00 Mr. Mark Bean, Director Garfield County Building, Sanitation and Planning Department 109 Eighth Street, Suite 303 Glenwood Springs, CO 81601 a As 11 I°I1V-0 1001 Grand Avenue, Suite 2-E Glenwood Springs, Colorado 81601 (303) 945-1004 (303) 925-6727 Fax (303) 945-5948 `�{ % CONSUL.`�rlN !ENGINEERS d SURVEYORS/ RE: Elder Property, Special Use Permit Dear Mark: ILLD COUNTY Please let this letter serve as a final report supplementing the attached information for the procurement of a Special Use Permit for the Eider property at the Ranch at Roaring Fork. From the attached drawing, it was determined that a majority of the property lies in the Federal Emergency Management Agency's 100 -year flood boundary of the Roaring Fork River. Subsequently, Mr. John Elder has obtained permission from the Army Corps of Engineers to fill to the boundary also shown in the drawing. This fill would push the proposed floodplain line further towards the river, thus, making the Tots more developable. Based upon the County Floodplain Regulations, Mr. Elder must obtain a Special Use Permit for the placement of fill in the existing flood fringe. When obtaining a Special Use Permit, Section 6.08.01 of the County Floodplain Regulations must be addressed in regard to the following: A. To assure that all necessary permits have been received from those governmental agencies from which approval is required by federal or state law, including Section 404 of the Federal Water Pollution Control Act Amendments of 1972, U.S.C. 1344; and B. To determine whether the proposed building sites will be reasonably safe from flooding, and that the structure will be in compliance with the applicable provisions for uses and standards for construction set forth in this resolution. In response to Section 6.08.01, Mr. Elder has obtained the required 404 Permit dated March 10, 1992, from the Army Corps of Engineers for the placement of fill in the floodplain. This fill will be placed in accordance with the Corps' requirements. Secondly, the building sites will be filled to an elevation of at least one foot above the 100 - year flood elevation. Therefore, any structure that would be built would have a finished floor at least one foot above the 100 -year flood elevation. In addition, we would like to address the items in Section 6.09.02 regarding building in the flood fringe: A. The placement of fill has been approved as stated above by the Army Corps of :I • November 11, 1992 Mr. Mark Bean, Planning Director Garfield County Page 2 Engineers. With proper placement, this fill will not increase the opportunity for solid debris carried downstream by floodwaters. B. There will be no storage or processing of hazardous materials on the property. C. There will be no disposal of garbage or solid waste materials on the property. D. There will be no mobile homes placed on the property. E. The placement of fill does not encroach into the floodway; therefore, we do not anticipate that the fill will adversely affect the efficiency of or restrict the flow capacity of the designated floodplain so as to cause foreseeable damage to others. We hope all of this information is complete. If you have any questions or comments, please do not hesitate to call. Sincerely, SCHMUESER GORDON MEYER, INC. b„Car, Dan Cokley, E.I.T. DC:Ic/92149 Enclosures SCHMUESER GORDON MEYER, INC i- . 4h) i • $;1TIrARY 5EW6R Llrr AREA OF PROPOsE.P WLTL-AHD FIR.I. 50 UN CARY OF ExJzTtr1C, IV, t:rLING Irl IT LATS, It 47 - M63 5`rarr A 5.0 PR CKEEK saes`GRELK t7C.wIYa6 _. _ ` �t P.GCESS.. F.0.4D rONo6, F'r,i'E . cx.rggrlrIc sTA-ZCn CH v Xr5TTfG PLAYGRO1A4G, J, PAsrvgc.. AREA Or PROPOS-O WE1Vtiq t'iIflGATION �I xKSCAT IC CIVERFzoW CREV< CIt1F'LDW) E.xi!,T1t16 T10E"s, T'{P1!AL MAJNTEIWICE WILDIM65 ‘‘:/ 5141C -LS STORAGE ELDER L.0.171APPLICAT1011 or1Cr ROAr3 77, »CAR1Hs FoJC WC PC • vrclhi TY NAP RANCH AT ROA.RV•G FORK G AhY1 -W- COtNfrY, COLO AE FIGURE l 0 IC,0' .2COi 400' s, 4 �cR E1DESfG 1S A Rai ITTGT5 GLEnwaos? 5PR1tsGe, COt.01cacn 1409 per -}4 sYs C.r torndt,1S REPLY TO ATTENTION OF DEPARTMENT OF THE ARMY U.S. Af1MY ENGINEER DISTRICT, SACRAMENTO CORPS OF ENGINEERS 1325 J STREET SACRAMENTO, CALIFORNIA 95814-2922 March 10, 1992 Regulatory Branch (199101233) Mr. John Elder Post Office liox 18938 Oklahoma City, Oklahoma 73154 Dear Mr. Elder: 1 am responding to an application for Letter of Permission (LOP) dated December 11, 1991 submitted on your behalf by Mr. Dean Moffatt. The application for a LOP concerns the development of ten single family residential'lots at the Ranch at the Roaring Fork in Garfield County, Colorado. You are hereby authorized to discharge 2,300 cubic yards of clears fill into 0.36 acre of wetland located near the Roaring Fork River, Section 36, Township 7 South, Range 88 West, Garfield County, Colorado, for the purpose of developing ten lots for residential housing. This project must be constructed in strict accordance with the proposal outlined in Letter of Permission Application from Sundesigns Architects dated December, 1991, and amended by letters from Sundesigns Architects dated January 29, 1992 and February 6, 1992. The project drawings which reflect the most current amendments and which are authorized are are enclosed, and are entitled: "Location Map" (Figure A), "Vicinity Map" (Figure B), "Proposed Plat Modification" (Figure F-2), "Land Utilization Concept" (Figure J), and "Project Features" (Figure D, revised 2-6-92). This LOP is issued under the authority of Section 404 of the Clean Water Act (13 USC 1344) and is subject to the enclosed lists of special and general conditions. Please read the conditions contained within this authorization carefully. • We appreciate your cooperation. Should you hale any questions, please write to Nick Mezei, U.S. Army Corps of Engineers, Sacramento District, Western Colorado Regulatory Office, 402 Rood Avenue, Room 142, Grand Junction, Colorado 81501-2563, or telephone (303) 243-1199. BY AUTHORITY OF TIIE SECRETARY OF TIIE ARMY: Art Champ Chief, Regulatory Section Enclosures Copies Furnished: Dr. Gene Reetz, Environmental. Protection Agency, 8WM-SP 999 Eighteenth Street, Suite 500, Denver, Colorado 80202-2405 w/ Enclosures • Mr. LeRoy Carlson, U.S. Fish and Wildlife Service, 730' Simms Street, Number 292, Golden, Colorado 80401 Mr. Jon Schersc)ilight--401, Department of Health, 4210 East llth Avenue, Denver, Colorado 80220 Mr. Perry D. Olson, Division of Wildlife, 6060 Broadway, Denver, Colorado 80216 Mr. Ictal D. Simpson, Deputy State Engineer, Colorado Division of Water Resources, 1313 Sherman Street, Room 818, Denver, Colorado 80203 /1„ --Mr. Dean Moffatt, Sundesigns Architects, 901 Blake Avenue, Glenwood Springs, Colorado 81601 w/ Enclosures. Ms. Katherine T. Willer, ERO Resour,ces'Corporation, 1740 High Street, Denver, Colorado 80218 • 2. 1 i 4 T•/J4L.EX ��w�m. CQ V KT S •• � ► ti rior r.J.3 • IkaLocc • s rA? 1,C i • / 1 1 • Flip o F Ex15'1"'mc / / mvxl Luis. > ww^r • roux. LANE E7CTirrlSJ • OrE Ili 1992 - -' • FtAPC H M FeGARICG FORK .•. --LC)t ��t _na1. • 0 r . cr Bali P2".. 111 16,c �°�v-r ' '• rs� ZA.041U. EIL -L.O. P. APPLICATION LOCATCCI- MAP P.AtCAT RtoAR1i'tG Fazx Mi0-0 cam, c 15aot . sooa' SUIVES6ris ARCHITECTS :Gle 4X7oF7 5rxm51 C.41-0gkao ▪ • ulsz • . s.os Heti% • pars° °" FIGURE A . oI Rcw.. -CP.ILRopo CC7' O1O /801J121dS a0O7,1L1319 51 3.1-11%7�`d Su91S3a{.1rs _liir11 - `� 112Ani X04 9141?f4o�' pat, ,coy ,O1 b q 321n9L CICY C lOD ' J.1N103 CL'0 2d01 %1'"a02i 1`d H,S4V27 d1�W AJJ141VIA .i011VOilddd x'01' aT2 3 7Y21OSS 3-771-t9 /1 j 5U1011n 37LIV 112.1KMww 9$1LL51X3� (/\01.d1J1) ) 32i� A0132i3AO 1-1011.`-912( is 1.1011 11I W. al-tirl M C35Oci 0 Nr.3W rn702i .1410 . 3 N/115 fd alrio2ioAY.1d 71.usIX3. Tr?u4i's3 13015 souol .� i _qjJ� --Q vv)t=5S377v ' U {.3x7 912:;d05 29 ci)/ - tab �S.1O� 11 ' lil 911 111 Al maid tpIJIIc(X3 30 ...L.WC21Nt1QQ ucuYls 1.j11 av"ss (�5 ATE WAY 82. EXIST11G •.• 111•5 OOOOOOOOOOOOO Ss�ss F.xI STTNG \ LIFT" STAM OOOOOO ell • ••• ■ CIF 71G, FILIfi6 ZL PLATTED 9.8 T8 CENTERLINE CF EXISTifiG UTILITY SERVICE ROAD OOO .,EILanREA. 4vc ExsiG RELOCATED unt.tTY g' ' ACCESS EA_SET'SEZ1T • • • • 1 ELDER LOP AFFIXATION PKC.p05co PLAT MODffl A';YTfWETLAITO RANCH AT R['NOG FMK •�� nu. AmEA GkRFIELD =NT?, czt.ortAvO •. a .... ACCE / ENO G'E.T1-AHO CEL NEATIOH r�—•�LINE. Cr PROPOSED WETLAND F1U- 12[110 FREA OF PP FRED w rtAL lO FILL. —• ^ !OO `YEAR FLOOD PLAIN W--FLO OAY -'------ 40 LJ((ZTREET 45 30' rr FROrrT EU,ILDINGC8pC?( •L•.s•• • Af'1EPvEI7 FIGURE F CF APPLICATION PrtOPOSED FILL AREA REDUCED FROM 0.48 ACHES TO O.No ACRES. )XiCESIGN5 ARCHITECT'S ..GLEN4.0000 iit1G5, COLORADO FIGURE F-2. • ' I • • • •. / ``� �` .. •.' /' • • AREA Cle WETLAND • E.NHANCEMENT Crir.E.Z5 APO SHIRUD isurrgp, SEE FIGURE "GI) J 0 301 Coe ftOi ,,FLOODWAY�� (1r di3A0'7dQir'a- IG'i 11 ZI)Tit! 03r�...a05dd .l71-1i1415t$0 .01WI1 7714 0-3(1431•41.1d) - 1;1d0dd A0 111411 u0(1Y3 a a14Y'113/1 0'33 ISCOV __ 1 114'♦i ' ‘‘%\.,,‘ .... us *A"' �,%,\ rirs.‘,, vti,„r pow v ° .i.:__Nitai (ond 1 06) 3Jd1.c 101 )•014111IW s1 - -I(1c Wf1wu41W t0Z1 :.vsm.a 4 1Y .... '1 I' \ la) IDE 0 • • !{oval 941Ia,In4 1 :LA z • • _)'11431•4-3'xi1117:13Y 'r;>t' of SJ.w*N3 I0S.t1107 (.nwAl d.11); awJ. a 7a V1 wnuiwu' 1 1 • • 1� 51 0101 15'diSid SC J. (14 1.44).4114 • r 31(1 IA OO`v 0'k '(30CMI7TI9 517i11HD?AV su9E-Aauns 3S '00491 aL 0 a Ak1016 0/714. QTY •; 32tS 351101-1 • 39fid3Ab IS OS el 24013/•14- ewaninG aJdi13A'd 1C OD'r4I 12IS .L 1 • r ... r + r Oti v 0100 ' .LL11t1Q» O'131d}1\d 1 x4104 ,1Jldd', A' HM1'd!1 ..141 o uou dznun awl 1O1l`dp ricIdd 1401 an • • • • \ • • • btopj cx.ieriri6 WETLAt•1D EXIS1Q16 WETLAND TO F. EfiM.aly .W 4J' O =F.d .08 Ac. xi t1 L • p.F. Art EXISTVIC7 fSIDE'w 7411) GXIG, l6 TKEEE-5,T Inc..A _lam C . MIGIERIVAdAy410 149LIB �- ! irk via nPr RE.'VI5ED 24,0 TO KANTErJS+fiGE WILDINGIgalfr f •'�� ELDER L.O.P APPLIGATIOfI Vrik PROJ�LT FET'V�!9 PTOJE=T - FEA-uRE.5 A rr Al ROAszim ?OAC 6;-..1q15tX ccJhN, GOLORPOO• 0 101 2D 40 1 Ta:b.. FIGURE 1q�V15_J Z G•OJZ 6U1I0E,5 i 15 ARCHI TECT' 5 1TRYATspry OV; RF1aW c1.E,1Wo00 Gf'Rt 6s, C-CLLX.A.00 CREEK c1LNfl-QW) PERMIT NUMBER: 199101233 PERMITTEE: Mr. John Elder WATERWAY: Roaring Fork River, Garfield County, Colorado GENERAL CONDITIONS: 1. The permittee shall abide by all special conditions (refer to page 5) which the Corps of Engineers may add to any individual authorization given under this LOP. 2. The permittee shall abide by the terms and conditions of the water quality certification issued by the Colorado Department of Health or the Environmental Protection Agency in accordance with Section 401 of the Clean Water Act. 3. If you, before or during prosecution of the authorized work, encounter a historic property that has not been listed or determined eligible for listing on the National Register, but which may be eligible for listing in the National Register, you shall immediately notify the Corps of Engineers. 4. Only clean material free of waste metal products, organic materials, unsightly debris, etc., may be used for discharges authorized by this permit; all discharges shall be free of toxic pollutants in toxic amounts. 5. Any discharges of dredged or fill material shall not occur in close proximity of a public water supply intake, should not ti limit the ability of any existing diversion structure to appropriate water and should not adversely impact a stream gauging station. 6. You must maintain the activity authorized by this permit in good condition and in conformance with;..the terms and conditions of this permit. You are not relieved of this requirement if you abandon the permitted activity, although you may make a good•r:', faith transfer to a third party. Should you wish to cease to. f maintain the authorized activity or should you desire to abandon it without a good faith transfer, you must obtain a modification of your approval from the Corps of Engineers, which may require restoration of the area. 7. Upon notification from the Corps of Engineers that work being performed does not comply with or fall within the scope of this permit, the responsible party shall take immediate steps, as directed by the Corps of Engineers, to bring the work into compliance with this permit. i • .1i 8. This permit does not obviate the need to obtain other Federal, state or local authorization as required by law, does not grant any property rights or exclusive privileges, does not authorize any injury to property or rights of others, and does not authorize interference with any existing or proposed Federal project. 9. In issuing this permit and in giving authorization to perform work under this permit, the Federal Government does not assume any liability for damages to the permitted project or uses thereof as a result of current or future activities undertaken by or on behalf of the United States in the public interest, damages to persons, property, or to other permitted or unpermitted activities or structures caused .by the activity authorized by this permit, design or construction deficiencies associated with the permitted work, or damage claims associated with any future modification, suspension, or revocation of this permit. 10. You must allow representatives from the Corps of Engineers to inspect the authorized activity at any time deemed necessary to ensure that it is being or has been accomplished in accordance with the terms and conditions of this permit. 11. The construction or operation of the activity'authorized by this permit will not impair reserved tribal rights, including, but not limited to, reserved water rights and treaty fishing and hunting rights. 12. The Corps of Engineers may re-evaluate its decision on any authorization given in accordance with this permit at any time the circumstances warrant. Circumstances that could require a re-evaluation include, but are not limited to, the'followi.ng: a. You fail to comply with the terms and conditions of this permit; b. The information provided by you in support of your application proves to haye.been ,false, incomplete, or inaccurate and; c. Significant new information surfaces which the Corps of Engineers did not consider in reaching a decision. Such re-evaluation may result in a determination that it is appropriate to use the suspension, modification, and revocation procedures contained in Title 33, Code of Federal Regulations, Part 325.7 or enforcement procedures such as those contained in Tile 33, Code of Federal Regulations, Parts 326.4 and 326.5. The referenced enforcement procedures provide for the issuance of an administrative order requiring you to comply with the terms and conditions of this permit and for the initiation of legal action where appropriate. You will be required to pay for any corrective measures ordered by the Corps of Engineers, and if you fail to comply with such a directive, the Corps of Engineers may in certain situations (such as' those. specified in Title 33, Code of Federations, Part 209.170) accomplish the corrective measures by contract or otherwise and bill you for the cost. 2. h• • I 13. The time limit for completing the authorized work will be three years from the date that individual approval is given under this permit. If you find that you need more time to complete the authorized activity, submit your request for a time extension to the Corps of Engineers for consideration at least one`ntionth before the expiration date for completion. -Unless there are circumstances requiring either a prompt completion of the authorized activity or a re-evaluation of the public interest decision, the Corps of Engineers will normally give favorable consideration to a request for an extension of the time limit. 14. Upon completion of the authorized work, you will immediately notify the Corps of Engineers in writing. 3. SPECIAL CONDITIONS JOHN ELDER 199101233 a) The permittee shall implement the attached wetland mitigation plan. This plan is based upon the original application dated December 1991 and subsequents revisions dated January 9, 1992 and January 29, 1992. b) The wetland mitigation construction shall be initiated concurrent with wetland filling for construction of the subdivision and completed prior to the expiration of the permit. c) highly visible construction fencing shall be placed along the wetland permit boundary until residences and landscape construction is completed to prevent inadvertently.•filling and/or construction impacts (e.g. dumping of construction debris and/or dredged material, storage of construction materials, or vehicle travel lanes.) d) Restrictions shall be incorporated into the deed for each lot and parcel of Filing 3, Phase 4, Lots 47 through 63, Ranch at the Roaring Fork, Garfield County, Colorado, to insure that current and all future owners of each lot are aware of the need *to obtain a Department of the Army permit to discharge fill material into "waters of the United States", and wetlands. The deed restriction shall disclose language that any. person who knowingly violates section 301 of the Clean Water Act may be punished by a fine of not less than $5,000 nor more than $50,000 per day of violation, or by imprisonment for not more than 3.:,years, or both. Lots which contain wetlands within their legal boundaries shall also include that information within the deeds for those lots. e) The permittee shall insure that the wetland mitigation remains as wetland for the life of the completed. project. -4 WP •i MITIGATION PROPOSAL The permittee understands that compensation for wetland acreage impacted by development and by the implementation of measures designed to protect water quality within the project site is required by Federal law and current U.S. Army, Corps of Engineers LOP procedures. The mitigation plan presented below provides for the replacement of impacted wetland with enhancement of existing wetland at a ratio of 3 to 1 and creation of wetland at a ratio of 1.5 to 1. A. Description of Proposed Mitigation The permittee is authorized to fill 0.36 acre of wetland as part of a development plan after alternatives,•to avoid were found impracticable. Alternatives to minimize wetland impacts resulted in the current plan. Compensation will consist of'enhancement of 0.48 acre of existing wetland adjacent to the developed housing; this will compensate for 0.16 acre of wetland fill at a ratio of 3 to 1. Wetland creation of 0.3 acre will compensate for the remaining 0.2 acre of wetland fill at a ratio of 1.5 to 1. The permittee will assume full responsibility of assuring that enhanced and created wetlands are constructed according to plan and achieve the stated goals. The goals of the proposed mitigation are twofold: 1. To provide protection of the.existing wetland and enhance values to partly compensate for values and functions lost with the fill activity. 2. To compensate for the remaining wetland values and functions lost by creation of new wetland in a nearby waterway. The wetland enhancement consists of a tree and shrub buffer of 0.48 acre planted at the rear of lot lines of the 10 developed lots. The planting will include native narrow leaf cottonwoods, and red osier dogwoods. The cottonwoods will be planted on 20 -foot centers. The 1 gallon shrubs will be planted in between the trees on 5 -foot centers. Compensatory mitigation will take place near the Roaring Fork River. The permittee will create 0.3 acre of emergent wetland in an existing low flow irrigation channel about 900 feet distant from the fill site. The existing channel and marginal wetland are currently supported by high groundwater table and creek and irrigation flows that are part of the master irrigation/fishing pond complex throughout the Ranch at the 1• • • • a Roaring Fork. The proposed wetland creation consists of adding drop structures within the channel to maintain a higher water table at adjacent areas where excavation of existing side slopes will result in establishment of littoral shelves. The shelves will be planted with wetland vegetation. The excavated material will be stored on an upland disposal site elsewhere on the ranch. The transition slope from the littoral areas to the uplands will be graded aL a 4 horizontal to 1 vertical slope. Topsoil from the rush -dominated wetland to be impacted will be mulched and spread evenly in the excavated littoral areas. These areas will be planted with willow cuttings obtained from various locations on the Ranch. Cuttings will be planted on 3 foot centers. Additionally, red osier dogwoods (1 gallon container stock) will be planted on 10 -foot centers at the toe of the transition slope from the littoral areas to the uplands. The transition zone itself will be planted with smooth brome grass to provide ground cover and minimize erosion. The seed will be applied at a rate of '12 to 15 pounds per acre. The maintenance of the wetland enhancement area will consist of ensuring that an 80% survival rate is achieved at the end of the second growing season. The maintenance of the wetland creation area will consist of ensuring that a 70% cover by desirable wetland species is attained by the end of the second growing season. No long --term maintenance should be. required. The monitoring/evaluation plan consists of monitoring the wetland enhancement area at six months. and one year after planting and for two additional years:thereafter. .The survival rate will be evaluated and planted species that have died will be replaced to meet the 80% criteria. The wetland creation area will also be monitored in the same way, and replanting will be performed to meet the 70% criteria. An annual monitoring report will be submitted to the Corps of Engineers for their review and comment. 2. CONSTRUCTION STANL)ARDS In order to ensure that wetland impacts are limited to the immediate area of the wetland fill, and that adjacent wetland is not adversely affected, the permittee will ensure that: a. Equipment operators will be instructed by the permittee to prevent damage to the surrounding landscape. b. Fencing or other obvious barrier will be installed between the permitted wetland area and adjacent wetland to assure protection of non -permitted wetlands. Under no circumstances will heavy equipment be allowed in the unpermitted wetland area. c. Under no circumstances will waste materials of any kind be dumped or temporarily stored in unpermitted wetlands. d. Measures will be taken when necessary and as needed to eliminate or minimize any interference or disturbance to wildlife. 3. -