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125 landfill report 2017 Stantec Consulting Services Inc. 5 Burlington Woods Drive Stantec Burlington MA 01803-4542 .( July 5,2017 File:195113153 Attention: Donna LaScaleia,Director of Public Works Department of Public Works City of Northampton 125 Locust Street Northampton,MA 01060 Dear Ms.LaScaleia, Reference:Second Quarter 2017—Landfill Gas Monitoring Northampton Landfill Monitoring of the landfill gas system was performed on June 28,2017 by Michael Brady of Stantec's Burlington Office and the results are attached. Landfill gas monitoring is now being conducted on a quarterly basis in accordance with the DEP post- closure Environmental Monitoring Minor Modification approval letter dated February 7,2014. Please contact me at(978)577-1407 if you have any questions regarding this information. Sincerely, STANTEC CONSULTING SERVICES INC. Ofcrk.L 65-1- ItAAA1, 1y John E.Murphy,P.E.,BCEE Senior Associate Phone:(978)577-1407 Fax:(978)692-4578 john.murphy@stantec.com Attachments: Landfill Gas Monitoring Data LFG Management System Schematic Site Plan c. Northampton Board of Health David Veleta—Northampton DPW Dan Hall—DEP—Western Regional Office jm V=\1951\active\195113153\ph'il\report\6-28-t7\landfill inspect 2g2o171tr(d-lascaleia).docx Design with community in mind NORTHAMPTON LANDFILL GAS SYSTEM MONITORING REPORT SECOND QUARTER 2017 Inspected by: Michael Brady Inspection Date:June 28,2017 Weather: pcloudy 70°F,Baro 30.05-variable Flare Panel Display - Status: _ Pressure Gauge Time Temp CH4 CO2 02 Notes Flare at Intake -5.9 -15.0 8:00 AM 66 40.9 29.2 2.9 191.8 cfm 1616° GTE s:-'' » ? .-°� Flare at Intake -5.3 -15.0 4:20 PM 76 43.1 28.7 2.4 198.8 cfm 1597° GTE Itatiagtat GENERAL NOTE: GTE plant down,Flare running. Notes: Pressures for above wells recorded in inches H2O Perimeter Well Measurements Well Impact Pres. Static Pres. Static Pres. Temp CH4 CO2 02 NMOC NOTES Id. well side well side vac.side °F %LEL (ppm) GP-1 Well at LFGTE Facility 0 0.1 18.9 nm 8 GP-2 Well at LFGTE Facility 0 0.1 21.0 nm 8 GW-1-95 -0.2 -0.2 -0.2 72 0 3.1 18.4 nm 8 valve closed GW-2-95 n'a Na n'a Na 0 0.1 20.4 nm 8 need to cut brush here GW-3-95 -0.2 -0.2 -0.2 70 0 7.1 13.3 nm 8 valve broken GW-4-95 -0.1 -0.1 -0.1 60 0 1.6 18.7 nm 8 valve closed GW-5-95 nia -Wa ' a rya rile . 0 0.0 20.9 nm 8 GW-6-95 -0.1 -0.' -0.1 7C 0 2.5 17.7 nm 8 valve closed GW-7-95 Na Na nia nia 0 0.0 20.8 nm 8 GW-8-95 n/a n/a nia Na 0 0.7 20.2 nm 8 GW-9-95 We. nia n/a Na 0 0.5 19.9 nm 8 GW-10-95 0.0 0.0 -1.9 75 0 5.9 13.6 nm° valve closed GW-11-95 0.0 0.0 -2.0 72 0 3.2 17.5 nm 8 valve closed GW-12-95 0.0 0.0 -2.2 70 0 6.4 11.5 nm 8 valve closed GW-13-95 Na nia Na nia 0 2.8 17.1 nm 8 GW-14-95 Na n'a nia na 0 0.0 21.0 nm 8 GW-15-95 Na nia nia Na 0 0.0 21.0 nm 8 GW-16-95 Na n/a n/a Na 0 0.0 ..„nia . 21.0 nm 8 � - GW-24-95 rJa a Na Na `ntn' 9 "tS�t �nm nm GW-25-95 n/a nia n/a n/a nm ._nm nm rimGW-26-95 nm GW-27-95 0.0 -0.2 -1.9 broken 0.0 0.1 20.0 nm 8 valve closed GW-28-95 n'a rfa [ nm GW-30-95 0.2 0.0 -2.0 80 0 2.2 17.7 nm 8 valve closed Notes: Pressures for above wells measured in inches of water column Gas concentrations for above wells measured in%LEL by volume unless otherwise noted Site Notes: 1.Non-Methane organic compounds measured with a Thermo 5808 OVM Data Logger.Instrument is calibrated with isobutylene and referenced to benzene. 2. CH4(%LEL and%by volume),CO2,02 measured with Landtec GEM-2000. 3. Collection line along west property line has been repaired. Re-activated 31 Oct 2003. 4. nm=not measured 5. Na=data not available 6.IF ANY OF GW 1-95 THRU 9-95 OR GW 11.95 THRU 16-95 EXCEEDS 10%LEL CALL OFFICE 7. IF GW30-95,GW10-95 OR GW 27-95 EXCEED 10%LEL,CALL OFFICE AND MONITOR GW 24-95,GW 25.95,GW 26-95 AND GW 28-95 8.Instrument failure,data not measured. 1 of 3 NORTHAMPTON LANDFILL GAS SYSTEM MONITORING REPORT SECOND QUARTER 2017 Inspected by. Michael Brady Inspection Date:June 28,2017 Weather: pcloudy 70°F,Baro 30.05-variable Well Head Measurement on Unlined Landfill Well Low High or Pressure Pressure Temp CH4 CO2 02 NOTES Id. Impact Well System °F GW-1 -5 [iV ; -0.10 0.0 -4.5 95 0.2 7.2 12.0 valve open 0%,valve broken GW-2 0.00 0.00 0.0 -0.7 broken 27.5 16.1 4.2 valve open 2%,closed to 0% GW-3 0.00 0.00 0.0 -0.8 broken 11.2 7.7 13.4 valve open 0% GW-4 *fed by Phase 4 Liner GW-5 broken nm -0.4 -1.3 70 0.0 0.0 21.2 valve open 0% GW-6 0.00 0.00 0.0 -5.0 75 12.6 19.2 1.0 open 0% GW-7 -1.00 -0.90 -1.3 -1.3 80 41.6 25.6 0.8 0.:n 25% GW-8 ." '�t"s, .-_-. :E _ . .� . -__ 4'. v_" A`_r' ,»s f", - . GW-9 0.00 0.00 0.0 -0.8 120 35.5 19.8 0.7 valve open 15% Notes: Pressure for above wells recorded in inches H2O Gas concentation measured in%gas by volume Well Head Measurements on Phase 1 Well Low I High Pressure Pressure Temp CH4 CO2 02 NOTES Id. Well System °F EGW-1 ni -0.40 -0.3 -4.6 62 27.1 25.3 1.0 valve open 0% EGW-2 broken nm -0.4 -4.7 100 0.0 0.4 19.8 valve open 0% EGW-3 broken nm -0.7 -4.7 110 0.1 0.1 20.2 valve open 0% EGW-4 ni ni -C 7 -4 7 80 41.2 25 E 4.4 va've ooen 0% RW-0 ni ni -3.4 run ni 0.2 0.2 '9.3 valve closed,header flooded RW-1 ni ni -0.4 -3.4 _ ni 0.0 0.0 19.7 valve closed RW-2 ni ni -0.5 -4.7 ri 0.0 1.4 18.7 valve closed RW-3 ni ni -0.4 -4.7 ni 0.0 0.0 20.1 valve closed RW-4 ni ni -0.5 -4.6 ni 0.0 0.7 19.6 valve closed RW-5 ni ni -0.1 -4.6 ni 0.3 1.0 19.0 valve closed RW-6 ni ni -0.3 -4.6 ni 0.0 0.1 20.3 valve closed RW-7 ni ni 0.0 nm ni 0.0 0.8 19.8 valve closed.headerflooded RW-8 ni ni -0.1 nm ni 0.0 0.1 20.5 valveclosed,headerflooded VC-1 vents/Cleanout btwn.V-6 and flare -4.3 -5.2 ni 45.5 31.8 0.9 open 45% V-6 Header isolation valve nm nm ni nm nm nm valve open 0%,header flooded V-7 Header isolation valve plugged -4.7 ni 0.1 1.0 18.6 valve open 2% V-8 Header isolation valve -4.5 nm ni 0.0 0.7 19.6 valve open 0%,header flooded SP-2 new riser upslope of RWO _ 4.9 ni 262 17.3 6.4 V-12 new Header isolation valve -5.1 ni TAN 50.2 30.6 2.2 valve open 100% Notes: Pressures for above wells recorded in inches H2O Gas concentrations measured in%gas by volume Curve data not available for flow rate calculation cnaxould not access ni=fitting not installed nrrt=not measured 2013 NORTHAMPTON LANDFILL GAS SYSTEM MONITORING REPORT SECOND QUARTER 2017 Inspected by: Michael Brady Inspection Date:June 28,2017 Weather: pcloudy 70°F,Baro 30.05-variable Well Head Measurements on Phase 2 Well Pressure Pressure Pressure Temp CH4 CO2 02 NOTES Id. well-static well-imeact system `F RW-9 -3.7 broken = 0.0 0.1 20.1 valve open 0% RW-10 -0.1 plugged il`-<51 0.5 0.3 20.4 valve open 0% LFG-1 -1.5 -1.5 -4.0 76 34.5 25.4 0.7 valve open 2%,closed to 1% LFG-2 -2.7 -2.7 -4.9 70 32.9 24.9 0.7 valve open 2% LFG-3 -3.0 -3.0 -5.0 80 37.4 26.0 0.6 valve open 0% LFG-4 -2.5 -2.5 -5.0 60 36.2 25.2 0.9 valve open 5% LFG-5 2.0 2.0 -4.1 82 0.4 1.0 19.5 valve open 0% LFG-6 -3.8 -3.8 -4.0 72 69.9 28.1 0.6 valve open 1%,open to 5% LFG-7 -4.4 -4.4 -5.0 80 74.1 24.5 0.8 valve open 1%,open to 5% LFG-8 -0.2 -0.2 -5.0 90 65.7 17.8 3.6 valve open 0%,open to 3% LFG-9 -0.6 -0.6 -3.0 80 45.3 29.5 0.4 valve open 0%,open to 5% LFG-10 -4.5 -4.5 -4.9 80 67.3 31.7 0.9 valve open 2%,open to 5% LFG-11 0.2 0.2 -4.4 90 60.0 31.4 1.9 valve open 0% LFG-12 -4.8 -4.8 -5.1 82 64.9 34.5 1.0 valve open 5%,flex hose leak V-10 IV near LFG-4 ni -4.9 ^' 26.4 17.1 6.7 valve open 100% Header . ‘.,-',o..-. :s V-9 isolation valve ni -4.7 :;_:-, : 49.6 27.5 2.3 valve open 100% riser ds from SP-1 LFG-8 ni -5.3 ;t 1 39.0 24.6 3.7 Header VC3 isolation valve ni -4.0 # 29.3 18.9 9.5 valve open 0% Header .:-;21;x;:;:;�" VC4 isolation valve ni 4.2 _,y3' 52.9 33.0 0.6 valve open 100% Honzontal *'a"ti HT-1 trench ni -1.9 ...JAIV::;: - 1.0 11.8 18.1 valve open 0% Well Head Measurements on Phase 3/4 LFG-13 -4.0 -4.0 -5.0 80 59.2 33.8 0.6 valve open 5% LFG-14 -0.6 -0.6 -4.1 99 61.6 37.1 0.6 valve open 1%,open to 5% LFG-14S -0.4 -0.3 -3.8 broken 30.9 20.4 9.8 valve open 0% LFG-15 -2.8 -2.8 -3.6 70 45.3 28.6 1.6 valve open 3% LFG-15S -0.8 -0.9 -3.6 80 31.0 21.9 5.3 valve open 0%,vac fluctuating LFG-16 -2.1 -2.1 -4.7 80 53.7 28.9 1.5 valve open 3% LFG-16S -2.2 -2.1 -4.8 82 53.6 27.8 0.6 valve open 1%,open to 5% LFG-17 -1.5 -1.5 -4.5 80 56.8 42.6 0.5 valve open 1%,open to 5% LFG-17S -0.3 -0.2 -5.0 80 52.1 38.2 2.5 valve open 0% LFG-18s -1.4 -1.1 -3.6 96 57.4 36.8 0.7 valve open 2%,open to 5% LFG-18 -1.4 -1.0 -3.6 90 57.2 37.0 2.5 valve open 5%,vac fluctuating LFG-19 -0.3 -0.4 -5.0 82 59.3 36.5 0.8 valve open 0%,open to 3% LFG-19S -4.7 -4.7 -4.7 80 61.7 37.2 0.6 valve open 60% GW-20 -2.3 -2.1 -5.1 88 61.2 38.2 0.3 valve open 2%,open to 5% GW-21 -1.9 -1.9 -4.2 100 , 61.0 38.0 0.6 valve open 2%,open to 5% GW-22 -4.1 -4.1 -4.1 84 60.7 36.0 1.1 valve open 5%,open to 8% GW-23 -3.9 -3.9 -4.1 80 61.5 38.1 0.6 valve open 0%,open to 5% GW-24 -3.5 -3.5 -4.1 80 61.7 37.6 0.6 valve open 1%,opened to 5% GW-25 -0.9 -0.8 -2.1 90 62.0 37.2 0.5 valve open 5% Header isolation valve near V-13 GW23 ni ni ni ni ni valve open 100% Header isolation valve near V-14 Flare ni ni ni ni ni valve open 100% Header isolation valve near - VC5 GW22 ni ni ni ni valve open% Header isolation valve near VC6 GW9 ni ni ni ni valve open% HT-2 HT nr gw23 -3.1 ni 41.3 31.5 0.6 valve open 10% Flush Box CT-2 near LFG-8 -0.6 -5.0 8.1 4.6 16.5 valve open 10% Notes: Pressure for above wells recorded in inches H2O .. Gas concentrations measured in%gas by volume cnl=could not locate nm=not measured ni=fitting not installed cnaxould not access 3 of 3 ++ GW1-95 (21.4' DEEP) / 4.0. VALVt. VALVE ) �,1 (V(VC-3) 9 • GW2-95 (21.5' DEEP) .. • w , - s,.. AP CT- -G.O. W19-95 --CONDENSATE TR ( 1) Gw20-95 �' _ 0. GW18-95 _1N 1• W -9 ++ GW3-95 (41.9' UEEP)�y VENT TRENCH - H7 `\ m m :`� GW14-95 (70' DEEP) ►�` INSTALLED 1980'S F8" ISOLATION VALVE (V-5) �'�;- BF Rw—to jr____9 \ \, `R\ �tABANDONED COQ T' _ PHQ-SE3 `APPROX. 20' DEEP \GW13_g5 (40' DEEP) ISOLATION VALVE. 2 � (CA4PyPi `"'"1r 5a HUPE "'•. • '- Rw_g RYI-7 �• " GW4-95 (22.6' DEEP) 8� HDPE PIPE, (TYP.} (PHASE E. ''-- /� g' ��., 2-INCH tf t \� ��'' ±RW-6 .. —.. C.O. VALVE •\• 1 1i ISOLATION- : EGW 1 µl _ .. _. (VC-4) ✓yLFG-13 LEG-5V - (APYR0) GW5-95 {22.2' DEEP) ; GW �5 N' - —' I \ I'� ',BP / VALE (Y 8) ,+��, I I BOTTOF I L.,.1-17',.," iLFG-11 :::: (20x* GW6 95 (41.2DEtt'} GW �r -- ,,L17� u(40' DEEP) f f T &' { P. 1 GAS WELL #8 J • I / �^ • I f ' � �' �` ' 4 DEEP)• I (UNDER UNJR) ` _ _ �/" LFG-14 • . r EGW 2 GW7-95 (22. I 4" PVC GAS HEADER �/ I LFG-6 EmTING .�- .. • � Y_ q. i I \:11\ Bo77ou / CApgED LANDFILL i, : 4i.1 0 • APPROX. LOCATION 1 _ - " - ,,� I GAS VENT TRENCH - `. ABANDONED GAS MIGRATION GAS YVELL E fG 18 LFG-11 I (CAPPED) • ( (c, I L : -" ;1 CONTROL BUILDING /�Gs !!!1 \ (UNDER UNER)�� ` � x r � PHASE 2 f PAVED G� LFG 15 4"NDP ` GW8-95 (21.9' DEEP}-' .- -RECARRCLING ' 3 ' DEEP VENT TRENCH - ` '� �'/0\f LFG-7 - •RW-4 f•• GW I I ` C 4' HYPE i AREA m +' - i' t ,:l (INSTALLED FALL 1995) 960'7,'`. �� • d • \ = 180, PHASE `3B :. II • \ r• EGW 3 I / / PHASE 4-, F � (ACTIVE} - 1 :I to LFG_ i BOTTOM • GW /2 • I ;.: ii, tACmnP(Fi�. \� --M_�.z� LFG 12. 1 N.•� CONDENSATE AP HOLE (CTM-1) i4 — — — / 8�� lFG-19 • `� LFG-16�� • 1/ s - : C F1 •- CONDENSATE PUMP STATION (CPS 1)--.. "• _ ) ..... I __ n a• CONNECT 4' HEADER TO 8' HDPE. 4' ISOLATION COL- ��� G V}W ~�• ,.,. � LFG-8 � RWT3�' GW9-95• ..--‘-ss.• • / VALVE (V-4) (SEE DETAIL 1 BELOW) VALVE (CT-1) 2 -�i/ ` '= i' � / `� '`' .. U .• GW12-95 • Z 1 • / r `__ I . hDp�r••`. LFG-4: EGW 4 (l 1 %�': / `T : / = o 10" ISOLATION (22.9' DEEP) /l! \ 8" ISOLATION VALVE (V-3) 4-INCH v ` VALVE (V-12) /� BOTTOM 2" CONDENSATE FORCE-MAIN •'\ • 4. I 4-INCH BF $I' SP-2 ,•��j 18" ISOLATION �',� I i GW hFq�gS i i VALVE (V-10} • • 8" HDPE \�RALVE C.O. "'_V' '01701- I !CgapS. ' 1 GW26-95 MCW 3 1 (vol) Atop, •;''1R4p .� RW- (20' DEEP}-�• 1 t CqS .•. /. -.. tirCONDENSATE MANHOLE (CMH-1) y AW-2__ NEw �i b' GW24-95 (40' DEEP} # MW R CO.. V. r • • #GW27-95 ' I 8` ISOLATION �.t _ ~ -� 8` ISOLATION 028-95 ♦ M:W'Q GW i1 VALVE (V-1) FLARE r r. .• AW-1 '-- `VALVE (V-7) 20' DEEP) EGW r GW25-95 (20' DEEP) I / COND. TRAP '� ? • -FFANOU7�``1--.�` (CTM-2) . S`-' 8' ISOLATION •. MW Wto-95 ` MANHOLE ( ) :,,:. -' �011 RW o 'PROX. LOCATIQN 640.V.".."'":„..„..,� VALVE (V-6) -SAS VENT TRENCH 8" HOPE HEADER / - • w GW30-9 MGW 1 ; L ��CC __ - - - _ CONDENSATE MANHOLE (CMH-a) (40' DEEP)`~ -- - , (NOT LOCATED. MAY NOT EXIST) _` " j 8' MAIN ISOLATION 4 PUMP VALVE PHASES 1 AND 2 , COND, �S MANHOLE S1A110N " GW11-95 (CMH-3) (CPS-2) a (22.1' DEEP) CONDENSATE MANHOLE 8 PVC (CMN-2) CONDENSATE DRAIN • z 8" ISOLATION VALVE (V-2) dQ_ g1 DETAIL 1: R VALVE AT CONDENSATE TRAP MANHOLE 1 PERIMETER WELL CONNECTED TO HEADER ' GAS EXTRACTION WELL • SCALE: 1" = 160' v § 6" HDPE HEADER 4 DVC HEADER CONDENSATE MAIN — — ^^