HomeMy WebLinkAbout2014 2nd Qtr f � .
Q, D&B ENGINEERS
AND
.ARCHITECTS, P.C.
KNOWN AS DVIRKA AND 3ARTILUCCI CONSULTING ENGINEERS 330 Crossways Park Drive,Woodbury,New York 11797-2015
516-364-9890.718-460-3634•Fax:516-364-9045•www.dvirkaandbartilucci.com
Board of Directors
Henry J.Chlupsa,P.E.,BCEE
President&Chairman
Steven A.Fangmann,P.E.,BCEE
Executive Vice President
Robert L.Raab,P.E.,BCEE June 6, 2014
Vice President
Vice Presidents _
Richard M.Walka
Senior Vice PresidentJames Bunchuck ;; i �✓ U L! .
Joseph H.Marturano r�•`� 'S
Senior Vice President Solid Waste Coordinator t +
Dennis F Koehler,P.E. Town of Southold DSW JUN Z 3 20�
Senior.Vice President
Garrett M.Byrnes,P.E. .6155 Cox.Lane.
Vice President
'P.O. Box 962 TOWN OFSOUTHOMD
Rob).DeGiorgio,P.E.,CPESC_ DCPT.OF SOLID WASTE
Vice President Cutchogue,N r 11.93 5
Stephen M.Dudar,RE
Vice President
Thomas P.Fox,P.G. Re: Town of Southold Landfill
Vice President
William D.Merklin,P.E. Landfill Gas Monitoring Program, Second Quarter 20.14
Vice President D&B No. 3 175
Michael Neuberger,P.E.
Vice President
Kenneth J.Pritchard,P.E. Dear Mr. Bunchuck:
Vice President
Theodore S.Pytlar,Jr.
Vice President
Brian M.Veith,P.E. On May 22, 2014, D&B Engineers and,Architects, P,C. (D&B) completed the
Vice President Second Quarter 2014 landfill gas monitoring event for the Town of Southold
Charles J.Wachsmuth;P.E.
Vice President.- Landfill located on Middle`Road (CR--,48)-in Cutchogue,-New°York.'The landfill
Dir.of Architecturegas monitoring was conducted utilizing-'a--GEM.20.00 Plus Landfill-Gas.Surveyor'
Andre H.Keel,R.A.. at -the existing 15 gas monitoring, wells. '(GMW-1 to 15,• located 'along- the
Senior Associates southern, eastern and northern'boundary of'"the landfill waste mass).. Weather
Steven M.Cabrera
Christopher M.Clement conditions on May 22, 2014, were observed to be overcast with-light to moderate
Ellen R.DeOrsay rainfall, and approximately 60 degrees Fahrenheit with light winds heading east.
Matthew R.DeVinney,P.E.
Frank DeVita
Joseph A.Fioraliso,P.E. Enclosed with this letter .are Figure- 1: -and: Table 1. Figure 1 shows-the
Michael R.Hofgren approximate locations of the. gas monitoring wells, and Table 1 lists the gas
Christopher M.LeHankamonitoring wells and their :corresponding temperature and levels .of'oxygen,
Richard W.Lenz,P.E. '
Olga Mubarak laramillo, carbon monoxide, lower explosive limit (LEI;) for methane and-hydrogen sulfide
Philip R Sachs,P.E. -as measured on May 22, 2014. As indicated in Table 1, there was a detection'of
Daniel Shabat,P.E. . -. methane greater than 100% of.the LEL at gas monitoring well GMW-6, located
Associates along the eastern- boundary of the waste mass. GMW-6 has exhibited a trend of
Rudolph F Carinavale
Christopher W.Francis elevated LEL detections for methane,. Often: over 100%, suggesting that gas
ChristopherKoegel,:P.E; .- migration is occurring beyond=the boundary-of:the'.waste mass 'in this area. It
James J.Magda should be noted however, that GMW-6 is�-not'located at the-property boundary,
Michele Mastrangelo � -, � P P y �,
Roger W.Owens which is approximately 250 feet to the north and,350 feet tothe east.of GMW-6.
Robbin A.Petrella In addition, methane-Was'not detected at,GMW-7-;_locate'd•to"the north of GMW-6
Edward J.Reilly at he northe'rn- �property.--boundary; or' •.
ithin' -the ' scale 'house,' locatedStephen T
Jason R.Tonne
Y �
D&B ENGINEERS AND ARCHITECTS, P.C.
James Bunchuck, Solid Waste Coordinator Page 2
Town of Southold DSW
June 6, 2014
approximately 100 feet to the south of GMW-6. The scale house is the closest on-site structure to
GMW-6, and methane was not detected within the crawl space or occupied area of the structure.
In an attempt to mitigate the elevated methane levels detected in GMW-6, the Town installed
wind-driven turbine exhaust fans on the three landfill gas vents located nearest to GMW-6 and
within the landfill mass. The turbines were installed in September 2012, following the third
quarter 2012 landfill gas monitoring event. In order to determine the effectiveness of this
remedial measure, D&B has been measuring both the LEL and percent gas levels for methane at
GMW=6 since the third quarter of 2012. �`The current percent gas- level in' GM- 6 is 27:=s�ro,
which is lower than the 29.0% measured last quarter. Although the recent trend in the percent
gas level has been generally decreasing, the current level of 27.3% is higher than the 22.7%
measured in the third quarter of 2012 prior to the installation of the turbines. D&B will continue
to monitor the LEL and percent gas levels for methane at GMW-6.
Consistent with recent monitoring events, the remaining gas monitoring wells did not exhibit
LEL detections for methane. Carbon monoxide and hydrogen sulfide were not detected in any of
the gas monitoring wells, and oxygen levels were detected at and below typical atmospheric
levels.
The next quarterly round of monitoring is expected to be conducted during the Third Quarter of
2014. If you have any questions,please contact me at(516) 364-9890, Ext. 3091.
Very yours truly,
Anthony Caniano
Project Manager
AC/PB(t)/nc
cc: T. Fox (D&B)
P. Barusich(D&B)
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LEGEND
Nm GAS MONITORING WELLS SCALE IN FEET
u-
3 GMW-1 `NOTE:WELL SYMBOLS NOT TO SCALE
a
D&B ENGINEERS SOUTHOLD LANDFILL
CUTCHOGUE,NEW YORK
LO
AND
AIicI�IECTs,P.C. LANDFILL GAS MONITORING WELL
M KNOWN AS DVIRKA AND BARTILUCCI CONSULTING ENGINEERS
LOCATION MAP FIGURE No. 1
LL •
TABLE 1
TOWN OF SOUTHOLD LANDFILL
LANDFILL GAS MONITORING PROGRAM
SECOND QUARTER 2014 MONITORING EVENT
Sampling Date: May 22,2014
Parameter Unit GMW-1 GMW-2 GMW-3 GMW-4 GMW-5 GMW-6 GMW-7 GMW-8 GMW-9 GMW-10 GMW-11 GMW-12 GMW-13 GMW-14 GMW-15
Temperature °C 16.1 15.6 16.1 16.1 16.7 18.3 17.8 17.2 17.2 16.7 17.2 15.0 16.1 15.6 15.6
Oxygen % 20.0 20.1 20.7 20.4 12.0 2.3 18.3 20.3 18.3 21.3 17.3 20.0 19.9 20.2 18.3
Carbon Monoxide ppm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Lower Explosive Limit-Methane % 0 0 1 0 0 0 >100* 0 0 0 0 0 1 0 1 0 0 0
Hydrogen Sulfide 1ppml 0 1 0 0 1 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0
.NOTES:
*:Measured at 27.3%gas.
Typical atmospheric levels of oxygen range between 19.5%and 23.5%
°C =Degrees Celsius
%=Percent
ppm=Parts Per Million
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