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Home My WebLink AboutGLSD Organics to Energy Project - Correspondence - 240 CHARLES STREET 6/28/2019 k aA f.i yw N....IS I "t,......I"/k'tSI ty «I June 285 2019 1 r Oil 11101*S Mr. Paul Dionne oseph, R. 72 onespin Road Subject:" Greater"Lawrence Sanitary District -ganics to Energy Project Rayrtrro,rid DIFioreNorth Andover PlUrnbing/Gas, Inspector Literature n.A. C],rorlift Dear Mr., Dionne.- A you know,t Gr ate Lawrence Sanitary L 1 trict G SD)and CDM Smith,Our jifn = r ' engineers on the project met with, Steve G linsky, the local pl robin in p t r on February 15� 201.9,to discuss sign-off for the gas p ri-n1t on subject proilect. Mr. Galins,1 y requested the Mictrael, Lyotis nform tli n listed on the CDM Smith letter dated April 5, 2019. We asked CDM Smith to prepare the requested information and have surnmarized the items included 'I the attached pal below.- C Letterdated April, 5,,2 1 '. Attached to,the CDM Sinith letter are the following its Unlisted equipment Variances approved the State Plumbing Board DAGV130 Fuel, Blending Systern and Gas TAM tls DA B`150 BloGas Flag [Natural Gas Pilot Post Installed Variance Variance GV 13 Post-Installation Variance was submitted and, approved b "the State Plumbing �4 Board for work,that was installed by pipe fitters. The variance allowed the °` ll wing " , Cc ept nce of digester gas piping th t h base p�� i � ly installed,contingent up a phunber(PT Dionne) taking r s lity ` r theinstallatond the pipe passing the required re-testing. Installation lited pplia. ces siat� �Itl the digiester gas sys,tem collection and gas n iti nin equipment. Above ground digester gas piping;to be schedule 10,type 3104 stainless steel, Below grotind digester gas piping to be SDR 11 hi 1. lensiy polyethylene ppin . N„� I„� ,,,y� ,, �.. �,�� ;,r" ,� it�..m. 'M., �,��--� n �,�,�� 6., ,,.,,, .,_"v., '""'.:'�" �� ,Mr. Paul Dionne June 28,201,9 Page 2 Use of'a gas blending systern i approved, for testing in, DAGV 130 in 11CLI of providing a two position three-way valves required by NFPA 5.3.2. o Pre-Installed.Variance—Variance GV 137 was submitted to and approved by the State Plumbing Board. This variance allows high density polyethylene pi,pmg for underground use 'in a high pressure(natural)gas system (up to 100 psi). 0 Dual Fuels®In cornpli[ance with N'FPA 54-5.1.2 as amendedley 248, CMIR- 5.,05(2), we have included a written permission letter from the local Fire Departilrent for installation of two ftielsire tile structure. Also provided In the attached package are: 0 Drawing, as listed In the CDM Smith letter, which are in.compliance with. NFPA54-5.5.1(b) asamen,dedb 248 CMR-5.05,(4',, which requires,the y design documents to be prepared by a Massachusetts registered professional englileell. Gas Supplier con fli-niation letter. In accoi,dance with 24 8 CM R 5.5.1,(b)Lan elevated pressure system is reqtillred to be designed by a Massachusetts professional engineer and written confirmation is required from the gas su� p�lier that they can sup ly tile ft el .meeting the volume, preSSUre, and P p maximum gas demand required by the drawitigs as well as required by any exi,sting gas systems. We have included the stamped plans along with a letter from Columbia Gas confirming they are able to provide the volume and r re essu of the etevated pressure sys,tem. p o Var tance approval granted for Unlisted Equipillent— Bio-gas, FlareNatural Gas Pilot. o, E-mailfironi, Fire Marshall"s office regarding the gas treatment vessels.The! e-mail, states that the vessels do ilot require registration with the State. The last remaining item to CoMpiete is tile variance approval for the untisted equipt-nent—Dual Fuel Blending System. Th,is test repod will be subt-nitted to the State Plumbing and once we are able to test the co-gen units,and the blending system. When this approval.l err received', we will ,forward this to you so you can forward it to the local Pmbi IUng/gas 111spector. We have enclosed two duplicate packages,,one fOl'YOU17 files and the other for delivery to the Nort'll Andover plumbing/gas inspector. A, We request that you con firi-n, vvith thelocal inspector that upon receipt of the approval variance from the state plumbing board for the duel. ft,iel blen :rig system this will allow for the sign oir of gas permit. i 4 P M . Paul Dionne June 28, 2019 Page 3 Let rye know if you require any further information. Very truly yours, GREAV,.R LAWRENCE SANITARY DISTRICT Richard E. Way Capital Projects Mange• Enclosure Cheri Cousens, GLSD Executive Director.,tor, e attachment Jay Spooner, Methuen Construction, w attachment Lee Storrs, C A I Smith, w attachment File: CS02—060--- 2.1