HomeMy WebLinkAbout2021 1st Qtr
March 12, 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, First Quarter 2021
D&B No. 5535
Dear Mr. Bunchuck:
On March 4, 2021 D&B Engineers and Architects (D&B) completed the First 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, eachof 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 March 4, 2021 were observed to be overcast and approximately 32 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 March 4, 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 Second
Quarter of 2021 (May 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
Enclosures
Cc:F. DeVita (D&B)
5535\\KR030921JB_Ltr
TABLE 1
TOWN OF SOUTHOLD LANDFILL
LANDFILL GAS MONITORING PROGRAM
FIRST QUARTER 2021 MONITORING EVENT
Sampling Date: March 4, 2021
ParameterUnitGMW-1GMW-2GMW-3GMW-4GMW-5GMW-6RGMW-7GMW-8GMW-9GMW-10GMW-11GMW-12GMW-13GMW-14GMW-15
o
TemperatureC3.62.82.12.07.36.24.78.25.47.68.86.26.16.15.3
Oxygen%21.021.021.420.313.018.420.216.318.721.320.914.720.921.513.6
Carbon Dioxide%0.20.40.10.17.83.41.14.42.70.10.96.50.60.26.2
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
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GAS MONITORING WELLS SCALE IN FEET
GMW-1 'NOTE:WELL SYMBOLS NOT TO SCALE
�-� SOUTHOLD LANDFILL
oJD�JD�� �+_� CUTCHOGUE, NEW YORK
D&-B ENGINEERS
AND ARCHITECTS LANDFILL GAS MONITORING
�; WELL LOCATION MAP FIGURE No. 1