HomeMy WebLinkAbout2007 2nd Qtr 1H2AC-_-,-,R0UP- ACECNIEM R UGINEERNG
EXCELLENCb I N.�EN GI NEERING
Holzmacher,McLendon &Murrell, P.C. \ 1-12M Associates, Inc.
H2M Labs, Inc.► H2MArchitects&Engineers, Inc.
June 20,2007 575 Broad Hollow Road, Melville, New York 11747
631.756.8000, Fax:631.694.4122
www.h2m.com
James Bunchuck
Southold Solid Waste Coordinator E C E U V
Southold Solid Waste District RM,
PO Box 962
Cutchogue,New York 11935-0962 JUN 21 2007
Re: Cutchogue Landfill TOWN OF
LD
Gas Well Monitoring Program DEPT,OF SOLID ASTE
SORT 07-01
Dear Mr.Bunchuck:
As detailed in our letter proposal dated November 17, 2006, our office conducted a round of monitoring
for the methane gas well monitoring program for the Town of Southold Sanitary Landfill located on
Middle Road (CR 48) in Cutchogue. The monitoring program was conducted on Junel5, 2007 for the
fifteen(15) gas monitoring wells at the southwest, south and southeast perimeter of the landfill. Figure 1
is provided which indicates the location of the gas monitoring wells at the landfill. The field program
included the measurement of oxygen and combustible gases for each of the wells as required by
NYSDEC.
The 112M personnel utilized an MSA Orion Multi-gas Detector to monitor for oxygen and combustible
gas (percent of lower explosive limit [LEL]) from the sampling ports of the gas monitoring wells. The
following table summarizes-the.findings of-the-June 15,2007 gas monitoring program:
Percent
Gas Probe LEL Percent Oxygen
GMW-1 0 20.2
.GMW-2 0 17.9
GMW-3 0 20.9
GMW-4 0 20.3
GMW-5 0 20.3
GMW-6 100+ 2.5
GMW-7 0 18.5
GMW-'8 0 16.2
GMW-9 0 19.4
GMW-10 0 20.9
GMW-11. 100+ 1.0
GMW-12 0 16.9
GMW-13 3 15.0
GMW-14 1 16.9
GMW-15, . _ . ;., 0 17.9
ENGINEERS \ ARCHITECTS ► SCIENTISTS ► PLANNERS ► SURVEYORS
P
I
1H2MGROU P
James Bunchuck
June 20,2007
Page 2
The results indicate that there is currently a threat of combustible gas migrating beyond the boundary of
the landfill in the vicinity of GMW-6 and GMW-11 located in the southeast and east portions of the
landfill. The next quarterly round of monitoring is expected to be conducted during September 2007.
If any questions arise concerning the gas monitoring program, please contact the undersigned at (63 1)
756-8000 Ext. 1484.
Very truly yours,
HOLZMACHER,MCLENDON&MURRELL,P.C.
Christopher J.Flynn
Project Manager
cc: Town Board
XASOHT(Town of Southold)\2007\Gas Well Monitoring Program 6-20-07.DOC