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6.2 ITEM 6.2. Memorandum tyof Ak River TO: PLANNING COMMISSION FROM: STEPHEN ROHLF,BUILDING & ZONING ADMINISTRATOR DATE: JUNE 23, 1998 SUBJECT: REVISION TO SOLID WASTE FACILTY BY ELK RIVER LANDFILL, INC. CU 98-17 REQUEST The Elk River Landfill is proposing to construct a new demolition debris cell at their facility. This proposal triggers a revision to the landfill's conditional use permit and solid waste facility license with the City of Elk River. The new demolition debris cell is designed to be approximately 24 acres in size. Approximately 18 acres of this new cell are proposed to be located on top of the solid waste in the original cell of the landfill, which is located within the Elk River city limits. • A little more than 6 acres of the requested demolition cell will be new landfill area that extends into Livonia Township as well as Elk River. In addition to the review of the new demolition cell, staff is considering the Landfill's required two year review and renewal of their conditional use permit and solid waste facility license at this time. House keeping item such as a new site manager at the landfill will be addressed. The demolition debris cell request also requires revisions to the Minnesota Pollution Control Agencies' (MPCA) and Sherburne County's permits for the Elk River Landfill. The City of Elk River, Sherburne County and MPCA cooperated on the review of the Landfill's request. Attachments • • • Vicinity map showing the location of the Elk River Landfill • The following selected drawings from the plans submitted by Elk River Landfill dated,April, 1998 (revised 6/98): Sheet#3 -the bold contours indicate the base grades required for the new 1110 areas that will be used for disposal. f:\shrdoc\b&z\stever\camascup.doc 13065 Orono Parkway • P.O. Box 490 • Elk River, MN 55330 • TDD&Phone: (612)441-7420 • Fax: (612)441-7425 • Sheet#4 - shows the proposed finished contours of the entire demolition cell; new areas and areas previously used for disposal. The maximum height of disposal at the landfill is not proposed to be increased. Sheet#7 - shows a typical cross section for the disposal of demolition debris over the new expansion areas. Sheet#8 - shows the disposal of demolition debris over existing solid waste. Sheet#9 - shows the construction details of the liner under the expansion areas and the final cover over the entire demolition cell. • Joint comment letter from MPCA, Sherburne County, and the City of Elk River dated, June 8, 1998. • Letter from Debra McDonald of USA Waste dated, June 17, 1998. • A memorandum from Matt Ledvina of B.A. Liesch dated, June 18, 1998, containing suggested changes to the landfill's current conditional use permit and solid waste facility license. Issues and Concerns Attached to this memo is a joint letter from MPCA, Sherburne County, and the City of • Elk River, dated June 8, 1998, outlining staff's issues and concerns with the landfill's proposal. None of the government agencies listed take issue with what the landfill is requesting, but rather how it is designed. The new area of the landfill that is proposed to expand into Livonia Township is planned to have a liner underneath. This liner will add some benefits as far as the collection of landfill gas in this area. The concerns with the proposal mostly revolve around the disposal of demolition debris on top of the mix municipal solid waste in the original cell at the landfill. This cell is unlined and has contamination associated with it that is undergoing remediation. In the attached letter from Debra McDonald of USA Waste, dated June 17, 1998, Ms. McDonald indicates that the plans and specifications for the proposes demolition cell will be revised to incorporate staff's recommended changes. These revised plans will be reviewed to determine their acceptability prior to the City Council meeting on this same issue. The attached memorandum from Matt Ledvina of B.A. Liesch,the city's landfill consultants, lists other recommended changes that are needed to bring the landfill's current conditional use permit and solid waste license up to date. These changes are minor in nature and will be incorporated into these documents prior to the City Council meeting. i f:\shrdoc\b&z\stever\camascup.doc • Recommendation The property in Elk River proposed for the landfill's new demolition cell is already zoned Solid Waste Overlay District(SWOD) and is mostly devoted to landfilling at this time. Proper design of this proposed cell can reasonably address associated environmental concerns. Staff is recommending approval of the landfill's request for a new demolition cell under the stipulations listed in the joint letter from MPCA, Sherburne County and the City of Elk River dated, June 8, 1998. Further, staff is recommending that the proposed revisions listed in Matt Ledvina's letter dated, June 18, 1998 be incorporated into the landfill's conditional use permit and solid waste facility license and that these permits receive an automatic review for renewal with public hearing in two years from the date the City Council acts on this current request (tentatively July 20, 2000). • • f:\shrdoc\b&z\stever\camascup.doc z i c 5 4 d cc '1 I 't•.........AO:.-4... .. 1 0 l'4,*W.W*.." i CT 41.4 k.4 k.•...1 I k A AA..4 1 .- 4.•••••••• , •••• •••••• ':: 4 4,•••••••4,.,v,•,•,.1 s m i*q . i 4 +••••44,0.-ww•-47. 1 • ---•.-••-.,-- A I , •4.--.,•.v•••• -iv*, •:.,:. .t.:::::::::::::::::*:+.: .. .. .... • - - • .....__ .. •••••••••••'•v•v4 - - - +•••••••••••• .e••••••••••••••••••••••0 / 1•••••••••••••••••••••••0 - .- ••••••• •• , iineigg . °C> Z•-----_ _ •••••••••••••••.- - --- ._ _ _ _ i--79 (:1--- --- 4:0:••••••••••••••••••••i . z:$4:+::::::::::::+:0 221,4 AVD•K 0 -- •• ELK RIVER LANDFILL •: tir ..- . , • • • - I i . ._ •., „gig., __,11-ft.N. _.. • ...„--- ••• , . . i..., . . • . •,-• ,l . P11,23:02:Z I fi I 21/114.0•JC .. -.... . --——--- — -—.._---— _—.— . — —(...... --.--—--- - , ITN Aseut ,,„Trip T , .-.._------ . -- -. . ----1- -----IIIIIIIVC 0 I e . * ?..4 ,$• -'..- •.' -.--...- -.----_ -.--.._. _ os . / to .0' .. °I ft , • CASE NO. CU 98-17 • Ag...s • . .,4,.• . ,, • .40,4074/ .. ....... . , '• , 4Ni • ., S• .,,.. . ,.. • ,..„.. . '-. \-/ . 4 ill ,. 01 _ __ L i _ .. . _ .4F •-.• j, - A V - ki E gs i 71 1 ' _mank__,...n.- - , ----... --- 1 i ! . I I It-1510.0 1 i "" JtJlC2 1993 • #' 0-' iherburne County, Minnesota Pollution Elk River Control Agency r' RECEIVED June 8, 1998 Debra McDonald �,,.. �.r�1 USA Waste Services, Inc. -- 825 East 2nd Street Blue Earth, MN 56013 RE: Elk River Landfill, Application for Permit Modification Dear Ms. McDonald: The following comments are a summary of the concerns and requirements from the Minnesota Pollution Control Agency (MPCA), Sherburne County and the City of Elk River regarding your Application for Permit Modification, dated April 1998. 1. The final cover system shall be designed according the municipal solid waste (MSW) standards. • 2. It is noted that the liner and leachate collection system for the-proposed demolition cell does not meet design and construction standards for MSW and/or industrial waste disposal sites. As a result, only demolition debris and new construction debris will be allowed for disposal in the proposed area. See Attachment A for definitions of allowable waste materials. 3. A liner system shall be required for the demolition debris horizontal expansion area and shall be required to have a minimum six inches of clay and a 40 mil flexible membrane liner. The clay shall have a maximum permeability of 10"7 cm/sec. See Attachment B for QA/QC requirements for liner construction. 4. The 906,300 cubic yards of air space capacity proposed for the proposed development shall be counted as a portion of the 4,926,200 cubic yards of"reserve capacity" for the site. 5. The plan sheets shall be revised to show the development of the site in two-year phases. Development plans shall indicate the sequence of filling for each phase, access to the working face and placement of final cover. The engineering report shall be revised to include a narrative to describe how each development phase will be filled, how surface water will be managed and how vehicle access will be provided. 6. The plan sheets and engineering report shall be revised to provide vehicle access for operation and maintenance of the new leachate management facilities, existing and future landfill gas (LFG) extraction system components and maintenance of final cover. • 7. The post-closure operation and maintenance period for the proposed development shall be modified to cover 30 years. Page 2 June 8, 1998 • 8. The engineering report shall be modified to include procedures which will be used to protect the barrier layer underlying the demolition debris during filling operations considering the physical characteristics of the waste material. 9. The plan sheets and engineering report shall be modified to indicate the management of LFG condensate in a manner consistent with that of MSW leachate. 10. The surface water management plan shall be modified to tie into existing and future surface water control features for closed portions of the west slope. Surface water ponding areas within the fill area shall be eliminated. The design of surface water control structures shall be modified to provide a continuous final cover system. 11. The proposed leachate management system shall be modified to eliminate potential problems with operation and maintenance. Specifically, the leachate sump area and force main shall be designed to provide frost protection. 12. Final cover slopes shall be constructed with a maximum 4H:1V grade in accordance with approved plans. All transition areas where slopes change grade shall not exceed 4H:1V. 13. The leachate collection and management system shall be operated to maintain a maximum head of one foot on the barrier layer for the liner. • 14. A 200 foot buffer area shall be maintained between the waste and the property line. If compliance boundary wells are required beyond the property boundary, a variance from the Solid Waste Management Rules will be required. The May 21, 1998 technical memorandum prepared by Wenck Associates which provides supplemental design information shall be incorporated into the modified plan sheets and engineering report. If there are any additional comments or questions regarding this matter, please contact us. Sincerely, cf27:1)2e()AO" 4 .1 4 Bill Armstrong ' Dave Lucas Minnesota Pollution Control Agency Sherbu me"County x?erve Steve Rohlf 0 City of Elk River cc: John Kellas, Elk River Landfill Matthew Ledvina, Liesch Associates . Jim Simonet, EnecoTech Midwest, Inc. Rod Ambrosie, Wenck Associates \\granite\prj$\Ifl32003\It980603.doc 1UW1B199B YW !ESA AS 1:11825 East Second Street Blue Earth, Minnesota 56013 c. (507)526-2194 (507)526-2195 Fax 110 June 17, 1998 Mr. Bill Armstrong, P.E. Minnesota Pollution Control Agency 500 Lafayette Road St. Paul, MN 55155 Mr. Dave Lucas Sherburne County P.O. Box 320 Elk River, MN 55330 Mr. Steve Rohlf City of Elk River P.O. Box 490 Elk River, MN 55330 RE: Elk River Landfill - Request for Permit Modification Dear Gentlemen: • I am writing on behalf of Elk River Landfill to respond to your June 8, 1998 letter which contained comments on the April 1998, Application for Permit Modification, submitted by Wenck Associates, Inc. All comments contained in the June 8, 1998 letter, have been addressed in a revised Application for Permit Modification, which was submitted to your offices on June 9, 1998. In addition, these comment responses, as addressed in the revised Permit Modifications, follow agreements reached in earlier telephone conversations and meetings where we were able to discuss your concerns. It is our understanding that all items, with one exception noted below, have been addressed in a manner which enables continued protection of the existing waste deposit and meets and exceeds regulatory requirements. Please refer to the revised Application for Permit Modification, dated June 1998 for detailed information. Comment #14 seems to reflect a misunderstanding. Comment #14 currently states the following: "A 200 foot buffer area shall be maintained between the waste and the property line. If compliance boundary wells are required beyond the property boundary, a variance from the solid Waste Management Rules will be required." From conversations and meetings with the MPCA, we believe Comment #14 was meant to have • said the following: • "A 200 foot buffer area shall be maintained between the waste and the property line, or beyond the property line if adequate easement(s) are in place. If compliance boundary wells are required beyond the property boundary, a variance from the Solid Waste Management Rules will be required." We understand Dave Lucas discussed this comment with Ms. Amy Hadiarus, MPCA Hydrogeologist, and she concurred with our interpretation. She indicated to Mr. Lucas she will forward a letter which will amend Comment #14 to reflect the above interpretation. Elk River Landfill is in discussions and is currently working with the adjacent northern property owner to acquire an easement beyond the property line. We are committed to obtaining this easement as part of the approval process for the proposed permit modification and believe this response satisfies the amended comment#14. We appreciate your coordinated efforts on this project. Please call me with any questions. Sincerely, USA WASTE SERVICES, INC. 4�/4 • Debra A. McDonald, P.E. cc: Rod Ambrosie, Wenck Associates Amy Hadiarus, MPCA Terry Johnson, USA John Kellas, ERL Matt Ledvina, Liesch Jim Simonet, EnecoTech Midwest, Inc. • • LIENCH June 18, 19 LIESCH ASSOCIATES, INC. 13400 15TH AVE.N. MINNEAPOLIS, MN 55441 612/559-1423 FAX:612/559-2202 Mr. Steve Rohlf City of Elk River 13065 Orono Parkway Box 490 Elk River, MN 55330 RE: Elk River Landfill—Review of City of Elk River License Agreement and Conditional Use Permit Dear Mr. Rohlf: This letter outlines our review of the License Agreement and Conditional Use Permit in relation to documents recently submitted and the demolition cell development proposal. • Recommended Modifications to the License • Page 2, 1.) Significant Persons. The new Site Manager of Elk River Landfill is John Kellas, 22460 Highway 169 NW, Elk River, MN 55330 —441-2464 (office). 708-2435 (mobile). Page 3., 2.) (14) The "Leachate Management Plan" was revised in December, 1997. New Item Page 4., 2.) (26) "Application For Permit Modification." June 1998. Subject to the following conditions: a) The plan sheets and engineering report shall be revised to provide vehicle access for operation and maintenance of the new leachate management facilities, existing and future landfill gas (LFG) extraction system components and maintenance of final cover. b) The plan sheets and engineering report shall be revised to indicate details for the new LFG condensate storage tank. c) The depth of burial for the leachate force main shall be increased at locations where access roads cross the pipe. . Page 7.,3.) (03) (b) the document "Application for Permit Modification." June 1998 shall also be referenced. Page 3., 2.) (17) Closure, post-closure and contingency action cost estimates were revised • on April 9, 1998. New Item Page 4., 2.) (27) "Post Closure Plan," March 1998 Recommended Modifications to the Conditional Use Permit Page 4.,2.) (03) (b) the document "Application for Permit Modification," June 1998 shall also be referenced. Please contact me if you have any questions or comments regarding the recommended modifications. Thank you. Sincerely, I ES A' I r - TES, INC. 4 1 \ 4 i Matthew . Ledvina, P.E. cc: Mr. John Kellas, Elk River Landfill Mr. Davis Lucas, Sherburne County 0 Mr. Bill Armstrong, MPCA Ms. Deb McDonald, Elk River Landfill w:\11132003\modifications9R061 7.doc III B.A.LIESCH ASSOCIATES, INC. 13400 15TH AVENUE NORTH MINNEAPOLIS. MINNESOTA 55441 4D , • ... J'Airto g a-ce 8 0 0 .4 39 0'014. 8 173 1 0 co in co u-1 u-i 1 fle,......' , ; 0 4....... - ii Li..ji'' Ilk ' ,...' t. ' ILI ' I'•114' 1Y i ‘71. III-1 r, /4Z,q ..g 1 ''‘' . ' -. '.. .' lirra, -'''.`.1 1 1 f i•1.0 1 i.,t 1. tl)! 'do,, ' 'Al; .. :z,r.."-....,. ; .....•r.l. 1 ' 971.; q ? .1•.,..."; ‘111.1,1 ik:!,N. -k)! 1.1 1 -....-"-' ....F.iii.-ItYt-S \''.. I Iiii.0.4TElia , . ,,I.• .1::: -.7-2.-:. %.•''''''' ''.• - &14'dt1P810 TE30w k,:-11 % ' ••• ' (.?444.... '-- ,,1 '' ---:- • ia---,,i,,T,-,-7-7-. -:. • ,16, .,. 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N Co m • -, e ! . i . .. I C & co C � a u 0 /ERLPAS3.DON REFERENCE°ILES,• •ROJCC7 PERMIT MODIFICATION - DEMO DEBRIS CELL SHEET TITLE REVISIONS DATE I\Afenck ELK RIVER LANDFILL SW-74 BASE GRADE CONTOURS RESPONSE TO LPGA/GITY GO..&ENTS 6/96 SHERBURNE COUNTY MINNESOTA lfenak Aeeoolsterr,Ina. 1800 Pioneer Creek Center (6121 179-4200 PREPARED FOR USA WASTE SERVICES INC DATE.APRIL,1998 OWN OW DSGN —APPv RWA ■nvlronnaentel Bnglneere Maple Plain,LIN 55359 Fax.(912)179-1242 C 0, 4V,.. •11,1A , g4-ce 8 0 0 8 ,4.,3S1 OWA. 0 Z Inc° inc° tn 1 w 194•ii.,, : _0 ' l'ill'al Al& IS l'\If llit 9 --- , .--- • lf , `.-\j-i-i,',..,-,SN't......zi\ ,1 ...-:.,\.„...,,. • ., 1. 0 1 0.,.. , "bx _..:,,,---- i ,:::.. .0. t \ 971; 1 /...i 7....::: ,-....ii . I1) ,... ... _ •:r. -i---:—..;:- i----ci..--..-= " . aviiiibiwwkwamviff _i 7.--7111;07-1 . , ti- . s :ZN,' .----"=" .•. - - .-. 9/.. -=". ''''''-'1..''''''''-.-----'..... ' \:::'. '' ----- ...---- .--...—' • • • •'./... .=.' 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LANDFLL GAS MONTORNG PROBE 00 w Yl lil lii17llWELL1/ yI)_V: 1 IIID' .t ,, I I - BULDfdpG�vSTRIkTLRE W L A_Z W ' li I I III I I/1`,``'I, III I I 41,,i(---- ........... �..�.. ...PRKCRT 1 LNE \''1,1'/J. i ;1, '' I I i' I r.- 1'\ \ i ' l NAPPING PERFORMED BY MARTNEZ m n O > rn t'f"'f CORPORATION WY,t997 w0 3 Z IA :._ s VEYCONTROLBYMEYER.ROH NNC\\\\ \\\ \ w J Q . 1 VERTICAL DATUM NCVD 1929 p r I - z • ,;';t, t i (.... 1 HORRONTAL DATUM -SFERBfRlE• Z . o < '` ''1; i COLNTY COORNATE GRD O 0 0 CLEEcro -:�'' �) , ,, , ' ('a❑ 1 L / /i I rl 8w = w i I \ LAJ CC �l(`� ► a CCa. • £ /iut '9( fl r. I• ,• I • / / . Hm • I / / . w� •• / �� • 1:• /;/ • N 248000 /� .. • W 4§ • • \ 1. \ ' n uoraem ° . . : 1 \ jUSAWASTE SHEET No. 410 1340I . i I • , ! , l I I ! i 1 . I eriFi) ; ____• 1020 I 1 i.- I i 1 i I 111141.0011ER SYSTEM SEE OET.11. oaf . voo , 1 9801 F I , -••• 1 L.... iAli I LEACHATE S.,8IP. C0051TE UNER SEE DE ML SEE SKETS 10 U10 11 NO' E 580.100 E 580.300 E 580.500 E 580.700 E 580.900 E 581.100 E 580.200 E 580.400 E 580.600 E 580.800 E 581.000 E EWING 1/1...5X , OW- 1 f 1 I. --- l- , _ O 1020 I i I i ' P•Z 1000 I- ,I Z; 980 If - '--•-- --- -. El 960 I- - I I 1 1 1 1 'i E 580,100 E 580.300 E 580.500 E 580,700 E 580.900 E 581.100 E 580.200 E 580.400 E 580.600 E 580.800 E 581.000 EASTING CROSS SECTION "A" @ 249.' 0 ------ No �1 Z ai 6 I ! aD _____i rt� m rn ~`.s 1 -'1- § .,i rn ir , I m { 1 -, 1 5 Ir. g 1 5 I\ § 11111 § 1 § g 1 g I ELEVATION ELEVATION 1 ill g I G) - A _ Ig:_._,,..:_-:, ---:,-: 0 ID11%5 _ } CPi I t q 1 ;____.„..,...,44...„,„.."," 2 _- 0 t 11, \F RE NN.E+E AS7.DCN REFERENCE FILES+• r �� DATE p OCCT PERMIT MODIFICATION - DEMO DEBRIS CELL 51EET TITLE 0 ELK RIVER LANDFILL SW-74 CROSS SECTION RESPONSE Tp 1�A/C1TM C01AENTs ei98 o Wenck SHERBURN COUNTY,MINNESOTA 'Renck A.aooleiee,Inc. 1800 PNu+ea/Cr5535 enter (6(2)479-4200 479-4242 PREPARED FOR USA WASTE SERVICES INC DATE+MAR,1996 OWN OMP OSON _APP'D RWA nvlronmentel 6n`Inean Maple Min, PEN( El. 1117.4 1120 r_____________I === _= _1@° - =_ __=_ 1120__ 1100 it ` noo 1100 . FNH. COVER SEE DEM.- \ 1 0 (! ct. it i if 1080 1 1080 1080-- •! EXISTING GRADE(TOP OF EXITING FINAL COVER) � 4 i /� 1 EASMG 40..+8 VLDPE 1060 I•. T� 1060 g 1060 $ I, (74,:" .-----EXISTNG GRM(ILAR DRAINAGE LAYER /x,ly T 1�` r 14 g "1S - >� 1040 1040 .` s 'PE ETERBERM-SEE-0E7 ® - -- 1020 1020 1020 '; !, 4. TE-01 TO EASING CAP GEOIEA IRNE SEE DETAIL — COMPOSITE LINER S OCTAL _ 1000 -; _ I 1000 1000 i_" „„,---r 1 PROPERTY LINE O 249.212 N ''! I CELL BOUNDARY 0 241,162 N 900 -.1'S0 960 900 N 249.300 N 249.100 N 248,900 N 248.700 N 248,500 N 248,300 N 248.100 N 249,3 N 249,200 N 249.000 N 248,800 N 248.600 N 248.400 N 248,200 NORTHING V.E.-SX 1120 ----- - - __- 1 1120 1120 1100 - - i - =- - _1 two /100 I- l 1080 1080 1080` _ -- -- -- '-' - - ---1060 P g 1060 . J 1020 - --yam, -_ _.____-___-- 1020 11020 W 1100 i- loco t_______..„..7.,7 1000 960 -- - - - - - -- - - 960 960' N 249,300 N 249,100 N 248,900 N 248.700 N 248,500 N 248,300 N 248.100 N 249. N 249,200 N 249,000 N 248.800 N 248,600 N 248.400 N 248,200 NORTHING CROSS SECTION "B" @ 581 .000 E 0 ilei / f , gl O. p z,- 14 4 0 Z [ 11 0a 1�uh 4 4a 'l' 4� �g7,,rr(f� WI p VI T � r.'', ! � It yby I,I tl li I 11 Z 0 OSS SECTION LOCATION MAP w CR 0 ---- — — 1120 N N 0Mil w g U _ .. I mo X l • FNAL COVER SEE OCT -\ r p ink ....mollIMMIIIIIIIII -------... \ - U N / ,,«-: 0: d I— U �▪` 031- 0 > �:. ..•••• �+ - 3 ^7 pOSTNG GRADE(TOP OF EXISTNC FINAL COVER) 1060 p 3 W W �' _ ,� u Z N 40 mi VLDPE 1 S r'''")- p ^ W W J 7 W s... . . r r 1040 a4 } TE-N TO E705TNC CAP GEOIEI6RNE SEE DETALeiOJ 0 N I 1 NY—�,_ --- 1020 0 > cr Ir • i' COMPOSITE LNER SEE DETAL 6 0 00 `_ CC wo J�1�����___r 7 w = W 1000 I-. N _ PROPERTY LINE 6 249,21 N CC W �• 10ELL BOIJ ARY O 24�,162 N a 0: a -S0. ). 900 U b N 249.100 N 248.900 N 248.700 N 248.500 N 248.300 N 248.100 N 249.200 N 249.000 N 248,800 N 248.600 N 248,400 H 248.200 NORDIC a N V.E.•5X NOTE, U T 0. FILL PROGRESSION SHOWN ON FIGURES 1-4 N THE o n OPERATIONS MWNUAL .o (APPENDIX E OF THE U ELS PERMIT APPLICATION) fl2G C"h 7 1100 F 11000 3 ai 1020 T •• E I 1040 /IIG - -- — _ — 900 . 00 N 249,100 N 248.900 N 248.700 N 248.500 N 248.300 N 248.100 N 249.200 N 249,000 H 248,800 N 248.600 H 248.400 N 248.200 L,. °e NORTHINGSv. -p CROSS SECTION "C" @ 581 .350 E 0 It ;fI 8 2pN5 c pow.=1: C r 1111 USA WASTE / %CET N. W e 40 fill I.LLDPE ill . ' .12' GRANULAR DRAINAGE LAYER • • / II, = \ \ \ , SURFACE CONTOURED ON SHEET 3 X/ A\ t \ \ / ' NOTES: BARRIER LAYER 40 mll LLDPE LIFER TO BE TEXTURED OH SLOPES GREATER THAN 10:1. WITHIN 5' OF TOE OF SLOPE. OPERATIONAL SURFACE WI BARRIER LAYER TO CONSIST OF: • DIVERSION BERM TO BE I • AS FILLING6' MIN CLAY (K, = 1 x 10 TCM/SEC) OR: PROGRESSES AND COVER GEOSYNTHETIC CLAY LINER IGCL) COMPOSITE LINER WASTE BOUNDARY SYSTEM SECTION O SHOWN ON SHEET : •cus IN m 9 I • f EXISTING FINAL COVER SYSTEM ,- \ 1 2. ;,^ EXISTING COVER DRAINAGE LAYER WELD NEW LLDPE TO EXISTING CAP GEOIEMBRANE ALONG ENTIRE EDGE 111 TIE-IN TO EXISTING CAP GEOMEMBRANE •CA=IN PINT I • z 4 WASTE BOlN1DARY SHOWN ON SHEET 3 4 I FINAL COVER SYSTEM ... SEE DET L -�-mirv,�\`�'', . i COIFOSITE LITER Q • �'IW�"11 ��; I;(\`W,�' SEE DETAIL II1)tl��1�144* e WASTE /' 4::';!�°:i j COMPOSITE LINER SYSTEM°�fs./_J1 1 SEE DETAIL 3 =---2'---.4=---2'---.1 e10' • PERIMETER SECTION 9 WALK DI FM I 1 I 2 4 .e./ eitt C`/ 8 V b SURFACE CONTOURED ON SHEET 4 o o tt] 6' MIN \y A\ r TOPSOIL 7tV/ V 24' WIN I (COVER SOILS LAYER i i I-l . . . 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Y H PVC ENOCAP (GLUED TO + / PIPE AND FLUSH BOLTED TO FLATSTDCK) &. dr IIMIN • P'2'x4' AC TREATED '2 PVC FLATSTOCK PLYWOOD SHEETS Uo N _11 32' i.22' PVC C cg �FLATSTOCK 2' 2' I( al e'h N O It Z 211 GUARD POST AND a _ BOUNDARY MARKER 9 Oe So SCALE at svr i:: 1 Ii i 2 4 _°m W it °off NOTE: . ° POSTS TO BE PLACED EVERY § Y 8 100' AROUND PERIMETER AND a AT CHANGES IN DIRECTION 7 R MOIMAKO '' el USA WASTE W $HcET NO. q°) MINIMMIMIEM W9 , _ _ _ aQ 3x E I 8 5 tc- 6 4181rp •ii "_� 1,....•..r.....r..r......r...r. •-7-- -_1 Witilit- 4,..:„.,,..... __,,,.„:1-.-__:_;.__,_.=-- 1,,,,T-r-,-...-, --. .��-_ 1''rig •f •,,,...7. _-,,....-.:.-_....,. \ _ r .. - E 580000, •• r _ 4- h • ,i, ��-/ Com' �r �'1b ' li r— = 4r �'' )/•l�.•. :_ r 111 ^may _ "11 a' =_ l ,II'I�III''' _ 1=---:_--_----=.4 4- _ •.---...1.-7.-.Z7.--7.".:- 2 :st.,- \ - r` i�lliillil ' �I+ .i qq -� y JI i III/hill lit _-_-_-=--_,-.. .-_7_,„:7,'„. / _. --_...i/ -{3— _ — ` ^,\„�\I .i p 1111\l,t'll li , __ —_. _ _ �'"-_--^mss�,I�\s"\\ Ilit " — 1111,1\1\\I J,•lk.:_ _ ,,-7-__• __� r -e'^`�.- - - _I \\t\\\\`-615 1tJyill x,\i, 1 I I'lI,..!:-,• a '''•vr — 1111 1 � ._i )� -•� i,n—p1O .— -_ s-��� \'\�\t�111ttt1�1111 \ I r•- 11llill I f 1 s • = — \�\i�\\\\IIUt\I\1t ti' %,. 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