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‘ \ Ses Broren rN (REMOTE \ 5 8's. — 6" LANDFILL GAS (LFG} CONVEYANCE PIPE
\ Ew {SAS 9 & L A. O53 A / ee o 5 5 ee 9g AGL = =— (SIZE AND ote GIRESTION)
VV Bs: x " — : mi _ N. N » ~ —— AIR —— 2" COMPRESSED AIRLINE
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~ ® CONDENSATE TRAP
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_ Scere 8 e Te t - ——— 40-mil THICK TEXTURED
“7 6 S — (1? 2.60 SO. HDPE GEOMEMBRANE
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DRAINTUBE™ NY COLLECTION LAYER
500-FOOT RESIDENCE RELOCATE EXISTING WELLHEAD CRATE” aN
SETBACK = "DTO7TA" UPSLOPE coecrion Ca J 1
\ NL LAER SS]
ror) ! |
\ vt : I NOTES:
GRAPHICAL SCALE PLAN |. REFER TO SHEET 1 FOR ADDITIONAL NOTES AND
ELEVATION
2. THIS PLAN ILLUSTRATES THE PROPOSED
MODIFICATIONS TO THE LANDFILL GAS SYSTEM. ACTUAL
LOCATION OF WELLS, PIPE, AND VALVES MAY CHANGE
DEPENDING ON SITE CONDITIONS AND CONSTRAINTS
ENCOUNTERED DURING CONSTRUCTION.
3. CONTRACTOR SHALL PLAN TO TEMPORARILY SHUT OFF
GAS FLOW USING EXISTING CONTROL VALVES WHEN
MAKING CONNECTIONS TO EXISTING LFG PIPES, AND
SHALL NOTIFY CITY REPRESENTATIVES AS TO WHEN
SECTIONS OF THE EXISTING GAS SYSTEM WILL BE
TEMPORARILY SHUT OFF.
4. CONTRACTOR SHALL PLAN TO TEMPORARILY SHUT OFF
THE COMPRESSED AIR LINE USING EXISTING SHUT-OFF
VALVES AND RELEASE COMPRESSED AIR PRIOR TO
MAKING CONNECTIONS TO EXISTING COMPRESSED AIR
LINES.
2400
VERTICAL SCALE
oO 40
HORIZONTAL SCALE
8. CONTRACTOR SHALL PLAN TO TEMPORARILY SHUT OFF
UPGRADIENT DEWATERING PUMPS WHEN MAKING.
CONNECTIONS TO CONDENSATE MAINS.
SOLID LANDFILL GAS CONVEYANCE PIPE SHALL BE
INSTALLED AT A MINIMUM SLOPE OF § PERCENT.
ELEVATION
=o
COMPACTED SOIL FOUNDATION UNDER WALL
(ABOVE LINER SAND)
4450
STATION
EXISTING CONCRETE BLOCK WALL PROFILE
(FOR INFORMATION ONLY)
= EXISTING CONCRETE BLOCK WALL
SANBORN
SCALE: AS NOTED
|| wea
eT DRAWNEY R.CLAY CONCRETE BLOCK WALL CORRECTIVE ACTION | provect NuNeER
DESIGNED BY: R. CLAY cl OF NASHUA
: FOUR HILLS LANDFILL 3066.21
D BY: E. STEINHAUSER NASHUA, NEW HAMPSHIRE
eae ee eTEWHAUSER PROPOSED WEST WALL SHEET NUMER
DATE: JANUARY 2021 CORRECTIVE ACTION PLAN 2 OF 6
