HomeMy WebLinkAbout2021 2nd Qtr
June 2, 2021
James Bunchuck
Solid Waste Coordinator
Town of Southold DSW
6155 Cox Lane
P.O. Box 962
Cutchogue, NY 11935
Re:Town of Southold Landfill
Landfill Gas Monitoring Program, Second Quarter 2021
D&B No. 5535
Dear Mr. Bunchuck:
On May 27, 2021 D&B Engineers and Architects(D&B) completed the Second Quarter 2021 landfill gas
monitoring event for the Town of Southold Landfill located on Cox Lane, off Middle Road (CR 48) in
Cutchogue, New York. As part of this event, each of the existing fifteen (15) landfill gas monitoring wells
(GMW-1 through 15) were screened utilizing a GEM 5000 Plus Landfill Gas Analyzer for the following
parameters: temperature; oxygen levels; carbon monoxide levels; carbon dioxide levels; hydrogen sulfide
levels; and lower explosive limit (LEL) for methane. Weather conditions on May 27, 2021 were observed
to be partly cloudy and approximately 70 degrees Fahrenheit.
Enclosed with this letter is Figure 1, which shows the approximate locations of each existing landfill gas
monitoring well. Also enclosed with this letter is Table 1, which lists all landfill gas monitoring wells and
their corresponding measurements as observed during the May 27, 2021 monitoring event. As indicated in
Table 1, methane, carbon monoxide, and hydrogen sulfide were not detected within any of the landfill gas
monitoring wells.
The next quarterly round of landfill gas monitoring is expected to be conducted during the Third Quarter
of 2021. If you have any questions, please contact me at (516) 364-9890, Ext.3058.
Very truly yours,
Keith Robins, P.G.
Associate
KR/MFt/cf
cc: F. DeVita (D&B)
5535\\KR060221JB_Ltr
TABLE 1
TOWN OF SOUTHOLD LANDFILL
LANDFILL GAS MONITORING PROGRAM
SECOND QUARTER 2021 MONITORING EVENT
Sampling Date: May 27, 2021
ParameterUnitGMW-1GMW-2GMW-3GMW-4GMW-5GMW-6RGMW-7GMW-8GMW-9GMW-10GMW-11GMW-12GMW-13GMW-14GMW-15
o
C
Temperature18.417.818.520.224.924.420.622.325.422.127.519.721.719.123.1
Oxygen%20.019.420.420.116.120.519.120.420.620.620.619.819.620.120.1
Carbon Dioxide%0.10.70.00.23.70.00.90.00.00.00.00.40.50.10.1
Carbon Monoxideppm000000000000000
Lower Explosive Limit - Methane%000000000000000
Hydrogen Sulfideppm000000000000000
NOTES:
Typical atmospheric levels of oxygen range between 19.5% and 23.5%
o
C = Degrees Celsius
% = Percent
ppm = Parts Per Million
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Landfill Gas Monitoring\\2021 2Q\\Southold Landfill - Landfill gas monitoring 2021Q2Page 1 of 1
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D&-B ENGINEERS
AND ARCHITECTS LANDFILL GAS MONITORING
�; WELL LOCATION MAP FIGURE No. 1