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Holzmacher, McLendon &Murrell, P.C. ►H2M Associates, Inc.
H2M Labs, Inc. ► H2M Architects &Engineers, Inc.
August 17,2006 575 Broad Hollow Road; Melville, New York 11747
631.756.8000, Fax:631.694.4122
www.h2m.com
James Bunchuck
Southold Solid Waste Coordinator V E
PO Box 962 D �+
Cutchogue,New York 11935-0962
Re: Cutchogue Landfill AUG 18 2006
Gas Well Monitoring Program
SOHT 06-01 TOWN OF SOUTHOLD
DEPT. OF SOLID WASTE
Dear Mr.Bunchuck: )
As detailed in our letter proposal dated May 23, 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 June 26, 2006 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 H2M 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 26,2006 gas monitoring program:
Percent
Gas Probe LEL Percent Oxygen
GMW-1 0 20.3
GMW-2 0 20.0
GMW-3 0 19.5
GMW-4 0 19.6
GMW-5 4 10.8
GM,T�W-6 >100 5.5
O.N Y��-7 0 1—^r.v
GMW-8 0 14.7
GMW-9 0 18.8
GMW-10 0 14.2
GMW-11 >100 0.2
GMW-12 0 16.7
GMW-13 0 16.4
GMW-14 0 17.8
GMW-15 0 18.5
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
ENGINEERS ► ARCHITECTS ► SCIENTISTS ► PLANNERS ►'• SURVEYORS
r
U2MGROUP
James Bunchuck
August 17, 2006
Page 2
landfill. The next quarterly round of monitoring is expected to be conducted during September 2006. If
any questions arise concerning the gas monitoring program, please contact our office at (631) 756-8000
Ext. 1610.
Very truly yours,
i
HOLZMACHER,MCLENDON&MURRELL,P.C.
,AV
,.George`.•:J. Desmarais,P.E.
GWD:gjc
cc: Town Board
XASOHT(Town of Southold)\2006\Gas Well Monitoring Program 8-17-06.DOC