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7 33.7 33.7 33.6 Dirt Road --�---�---- I- ---- --� ---- I I _ - -I - T- 1- -f - ---------� _ T -r ---r- I I I I I I I I I Pipes I ------------------------- I - P t1 t LEGEND x 5.4 '1-- � I 1 I I J I I I t I _ x 32. ® EXISTING COVANTA ENERGY VERTICAL GAS WELL N + / I /f // /I l I I x 311.2 x 3'1 HGP 9A EXISTING BELOW GRADE VERTICAL GAS WELL x 31.o i i j x1 .a \ - 2" HDPE CONDENSATE CONVEYANCE LINE --- �- / /- - - - 2" HDPE COMPRESSED AIR LINE �- I I �.... �- ... \ I / \� . I x 31.3 x 31.2 18" HDPE BELOW GRADE HEADER x 4.(S APHIC SCA E //Z� 1 I\� x 31.2 �`\ I I -I- 18" PVC HEADER ON PIPE SUPPORTS 25 0 5 100 } , t \ I / `. �J x 131.3 x 31.4 I Dy�\ - - - - - - - EXISTING 4" HDPE WELL LATERAL x 31.1 EXISTING CONDENSATE PUMP STATION x ( IN FEET ) x 28.E \11 I I I r F o N FLEX HOSE \ 1 Pipes x 30.V II x 31.3 1 / / 31.1 t I / I to J �'--.. - \ t I xl It I I I �-- . I 1 I / I � ,�X z x .2 3 Z > I`'' LFG CONSTRUCTION NOTES. EXISTING COANT* EGY o I�W =0 \ I II LOG TOI ENE GY POW PLANT � � -H I I t � H I I � I zao w -H� ocno �' 1 PROTECT EXISTING GAS SYSTEM IN-PLACE \ I-s�o-I----L----�----L - sz� -41 _ r�----------------�---�--- -1--- CD 0 x 35.2 ��,r 1pa-a------- X 3a x 5. o et a ^ > --0 2 . SURVEY LOCATION PRIOR TO FINAL COVER PLACEMENT EXISTING COVA151 4.�NF__ X Ge„S_,uEp�D >_ 04 �r 11-j 3 SALVAGE EXISTING WELL MANIFOLD/WELLHEAD ASSEMBLY �/ mc, N> ozw o -II -M 4 SALVAGE EXISTING 18" PVC/HDPE HEADER, 2" HDPE AIR LINE 34.2' F 9 a 0- (6 PLACES) 1 AND CONDENSATE UNES PIPE SUPPORTS AND n rY HOSES x 33.5 x 33.7 x 33.8 33.8x x 34.1 / 1 v in=INSTALL TEMPORARY 4" PVC CAP ON HDPE WELL LATERAL x 3 .0 \ O r_ (APPROXIMATELY 2 BELOW GRADE) x x x x x "f -�90 - - - - `- - - - _ © INSTALLTEMPORARY 18" PVC CAP ON BELOW GRADE 18" ff x co 00 --� PVC/DPE HEADER (APPROXIMATELY 2' BELOW GRADE FOR HDPE) 4 2� - - - - - - - - 3% MIN 7 INSTALL TEMPORARY 2" CAP ON NR UNE l x 340 9 i g8 INSTALL TEMPORARY 2' CAP ON CONDENSATE LINE x I 33.9 � I � I --�-I I 50 x I '/ Q INSTALL SALVAGED WELL MANIFOLD PER 5 OR 6 L�INSTALL 2" SCH 80 PVC PIPE & FITTINGS (LATERAL D(TENSION) I .o I I i I i I 60 11 INSTALL TEMPORARY WELL LATERAL EXTENSION PER OR 60 12 SALVAGE EXISTING ABOVE GRADE GAS HEADER PIPING / III I Cllf &CAP EXISTING COVANTA VERTICAL WELL CASING 2' BELOW K 70 GRADE AND SALVAGE WELLHEAD ASSEMBLY I 6 70 I 14 EXTEND WELL CASING & INSTALL WELLHEAD AFTER FINAL COVER PLACEMENT INSTALL AND CONNECT TEMPORARY BELOW GRADE 8' HDPE JUMPER TO EXISTING 18 HDPE HEADER x I 9 q,� 80 0K 16 INSTALL TEMPORARY 2' HDPE AIR LINE JUMPER TO EXISTING AIR LINE 33.8 x ANGLE POINT. 2 I II I 8 N 8951.8 a0 6 �� 17 II�,STALL TEMPORARY 2" HDPE CONDENSATE LINE JUMPER TO EXISTING x 28 E 1952.3 I 2 CONDENSATE LINE GR=41.Ot " 2" HDPE AIR LINE, 4 INV=44.1 I' + 18 INSTALL SALVAGED 18 PVC HEADER, - - - - - - - - AND 2" HDPE CONDENSATE LINES ON PIPE SUPPORTS PER e \\ �� p INSTALL SALVAGED WELLHEAD PER OR 2 1 818 0 INSTALL/MMD 4' HDPE WELL LATERAL PIPING TO HEADER OR MANIFOLD ---- - ---/ - - - - - - / �� 21 ABANDON OR REMOVE TEMPORARY GAS, AIR, & CONDENSATE LINE JUMPERS 700 / JOIN EXISTING 18" HDPE OR PVC HEADER, 2" HDPE AIR & CONDENSATE LINES 95.5 98 j }� REINSTALL COVANTA GAS SYSTEM ON GRADE 1------ / 7 n� - - - - - - - - - - - - - - - - - - } } / / ® INSTALL SALVAGED FLEX HOSE PER e 100}}} 1 1 SGP -7 t>�8797.7 / } 1 \ \ ~ ©5 EXTEND CONDENSATE PUMP STATION VAULT PER 1943.019 6 INSTALL SALVAGED 18" HDPE BELOW GRADE HEADER 1 GR=36.51 � �� \ 110 } } } } W (� , INV=39.51 / �� \ 1� 1 2" HDPE COMPRESSED AIR AND CONDENSATE UNES PER I \\�\\�\ \}1, / 5 1 x 28.7 1 INSTALL SINGLE PIPE SUPPORT PER 1x 21� } }}\\ x 116.5 117.7 8 INSTALL 10" x 6" PVC TEE OR SADDLE x \}}} x 118.9 W 29 REMOVE/SALVAGE EXISTING CONDENSATE PUMP STATION IDAYLIGHT I V'�� \i i \ - , W 30 INSTALL SALVAGED CONDENSATE PUMP STATION x N 8697.7 I } \}\ i }� E 1946.6 1` i 0 31 INSTALL 8 HDPE ELBOW I GR=36.51 INSTALL 18" x 8" HDPE SADDLE INV=36.5f �\ x 116.8 p � L 0 INSTALL 14 } }\1 11 33 x 8 PVC REDUCER x 28.7 x (3 ,3 ' \} \\1 �/� 1} x 130 LJJINSTALL PVC ELBOW T ' 1\ } }_` `_ Z 35 INSTALL 84"HDPE FLANGE (ADAPTER HBACK-UP RING, & HARDWARE 117.4 �1 `�`�� - 36 INSTALL 8' PVC FLANGE & HARDWARE % �"i}1\;}}\`1\\ •` \�\ = 3 INSTALL SALVAGED 18� PVC FLANGE &HARDWARE x 11 ,\� } } 38 INSTALL SALVAGED 18 HDPE FLANGE ADAPTER & HARDWARE o INSTALL SALVAGED 18" x 4" HDPE LOW POINT TEE x 130.4 40 INSTALL 18" PVC BUND RANGE & HARDWARE }\\} x 116.8 x 130.6 }� x 130.8 Q 41 INSTALL 6" CSP SLEEVE AT ROAD CROSSING NO. I REVISION DESCRIPTION BRYAN A. STIRRAT & ASSOCIATES CONSULTING CIVIL & ENVIRONMENTAL ENGINEERS 1360 E. VALLEY VISTA DRIVE DIAMOND BAR, CALIFORNIA 91765 (909) 860-7777. FORWARD LANDFILL FINAL GAS SYSTEM PLAN STAGE IA PARTIAL FINAL CLOSURE CONSTRUCTION PLANS DESIGNED BY R.M.G. SCALE AS SHOWN DRAWN BY M.T.B./C.A.L. DATE 06-05 FILE NO.: 86305DB CHECKED BY R.M.G. DATE 06-05 06-05 SHEET G7 OF 26 APPROVED BY : B.A.S. DATE :