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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) ♦3175WC0522114_JB(RO1) S.1zO.kh0,A Crays?6_10 � gia --x_ MW-11 P ; GMW-09: 001 ).' yE4,t` nl €EE f�(% f/ ?:✓• "✓p,•.`'w`^,,""'..`�``ryw + `-��, s^.`q=.` w"��SR h "t iait� i3J# {' f � ` �M W.U$ MW-07 ? — �0- W3�~T w.y��. y.„�M1:.'�".w�..”^.<x'^�vnw`t��..._� �,•e.�' 4 `\y `�- .•rF Z m< --•-- ,.-#_: �'+.:: ,y�%rf. t�:�1(�j�1�?' ''�-,...�,.`�`,.~'�'.."`"--�...,�x,��4���-� ,.,-�� =amu.-„�:-. .� ����" 1 �" .,,#.r:„:'i°,':...:t#p 3E p �'�.,�"`”'��`"'�-„.'"�`�-.�`'^'--....^-"'�--,..`”«^w...r_`^-'�••M.w»...-.--pro..,,, •.,, �, tg rrrjfJ(• /g 9j f -� `• 06 ' N^�' F�f�f��if73"€i {��t � if F ~.`'`��� { [I ^�.. R � 1X�r�##j€ Ff��""ii }} 1 � f•_.'� l �; 7 3E i. y� i §(j 3- a # F'4 1 e f �< i-00110jet(} ° . ter: -15 4 ,. RS's.L'3' ��?Y',{y " �� £\ � P}�\ ?� �,,, a f:.Sry�,• �.`.Cb:p,�. -02 yi IV G3 GM -1 a 13 C) Q I O C d, N €D 250 125 0 250 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 \\dbfslVobs\_HazWaste\3175(Southold Landfill)\2nd Quarter 2014\Southold Landfill-Landfill gas monitoring Q22014.xis Page 1 of 1 6/6/2014