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Home My WebLink AboutCorrespondence - 280 GRAY STREET 7/19/2005 1 TOWN OF NORTH ANDOVER o� Ncr�TH Office of COMMUNITY MIiMIUNITY DEVEa O P pNN T AND SERVICES 00 � 4 � 4 X400 OSGOOD STREET 4 °�, °n4— NORTH ANDOVER, MASSACHUSETTS 01845 �"s�cwu��` Susan Y. Sawyer 978.688.9540—Phone Public Health Director 978.688,9542--FAX uu f 11� July 19,2005 r Litchfield Company 26 Ray Avenue Burlington,MA 01803 RE: Subsurface Sewage Disposal System Plan for Lot I Gray Street,Map 107D,subdivision of Parcel 10, North Andover,Massachusetts Dear Sirs, This correspondence is in regards to the ongoing septic installation for the new dwelling known as Lot 1 Gray Street. On June 22,2005 the Health Department conducted and approved the Bottom of Bed inspection for this lot. This approval gave the installer the permission to fill the hole with Tide V sand,to the proper elevation,as shown on the approve plan.On July 14th Health Department personnel did a random check on the site to view progress on the installation. It was noted that the hole had been filled with sand and the leaching area infiltrator units had been installed.It appeared that the system was close to being ready for the next inspection. Closer observation of the sand installed within the system,as well as a pile of sand in the driveway,caused the Health Department concern. Visual and tactile inspection of the sand found silt particles that appeared greater in quantity than the usual Title V septic sand. Specifically,when kicked with the foot or blown on in the hand, there was a cloud of fines generated. Title V septic sand has very specific parameters that can only be confirmed by a sieve analysis at a competent lab. The concern prompted the health personnel to dig into the system area and extract a random sample.This sample was taken to the UTS laboratory of Stoneham,MA,The report indicated that the"state environmental code title V 310 CMR—531 15.255(3).Material has 5.6%passing the no.200 sieve"(see attached report from UTS)Title V septic sand is allowed 0-5%of this material. (See attached title V section) For this reason the sand has been rejected by the North Andover Board of Health. The applicant must have this material removed from the lot 1 septic system. If the applicant chooses to challenge the Health Department decision,they may hire,at their own expense,an independent laboratory,such as WASS or other agreed upon lab,to analyze another sample. The Health Department must be present for the collection,sealing,identification and transportation of the sample. Your effort to provide a properly functioning septic system for your dwelling is greatly appreciated. The Health Department may be reached at 978-688-9540 with any questions you might have. Sincerely S n Y. Sawyer,REHS/RS Public Health Director cc: Craig Waelty, Waelty Construction Joe Serwatka,Engineer 03/02/2000 11:05 (81b481b28 UULLiNZD urrlut OJ.ZDiri rr+u rj� i 1° 6 � SIVS f k' lmT`t DATE: "-`I �►�' .. -7 IAs 0114 � i U ' from. wnt Ib ,� ra Ftli: Grac�datiosr Aerr�lysfa ,. o "Wry ry iw: HIHP MI,QJ.t ohvraby d*AMlkN AW) .A'mh Siev,G Analysis 1.03.0 a Mod�f 3ed Procter ra P mened(ravel for Base Coat`;i MOLT y a Atterbet�Litrrits q" D rr 'MHD MI.Dd. hi g;4 - All' a Permeability a AwWord hwmem Borrow for Aist Al ,x.0, a tither: t; a ChaW :,b[W A!"Z.Od..p; :�. .. ct Wit:Gra*d.Crwhvd Stoft far A1*,°C'oilow :W M2;! j NW*wII r-lames nowt*confi)m...!fiber►:, +�+ >.r We serggcst the suitability of thfa s�cb Ike'**Wed!fi approval by Arch feet a Engfneers-of-Record o' No Sipecifi *provided to crux E) Spwiftn6ow provided to our offices but e6600'not: Mitt d to a specific use. 0 9ertrVley sni}1glW*d without indkatir of us'eind without Spaificotions. John C, McC*rk GeoWhnkal Dept,Mgr. k 8 NoMY&OU Lafto llUtoOerh*Mw #+ d*A* It 02100 (781) 08+7755 Pax (781) 43540 310 CUR: .✓EPARTMENT OF ENVIRONMENTAL PROTE? _)N 15.255: continued (a) The retaining wall shall be constructed of reinforced concrete,shall have no weep holes,and shall be waterproof. (b) The retaining wall shall be designed by a Registered Professional Engineer,who shall certify that the above condition is met by the submitted design. (c) The upgradient side of the retaining wall shall be waterproofed. (d) Construction of the retaining wall shall be supervised by the design engineer. (e) An as-built plan shall be prepared and certified by the design engineer that the wall has been constructed in accordance with his approved design plan. (f) The elevation of the top of the retaining wall shall be no lower than the"breakout" elevation,which is the elevation of the top of the two inch layer of'A inch to '/z inch washed stone aggregate cover. (g) The distance from the wall to the edge of the leaching area should be at least ten feet. (3) Fill material for systems constructed in fill shall consist of select on-site or imported soil material. The fill shall be comprised of clean granular sand,free from organic matter and deleterious substances. Mixtures and layers of different classes of soil shall not be used. The fill shall not contain any material larger than two inches.A sieve analysis,using a#4 sieve, shall be performed on a representative sample of the fill.Up to 45% by weight of the fill sample may be retained on the #4 sieve. Sieve analyses also shall be performed on the fraction of the fill sample passing the #4 sieve, such analyses must demonstrate that the material meets each of the following specifications: SIEVE SIZE EFFECTIVE %THAT MUST PARTICLE SIZE PASS SIEVE # 4 4.75 mm 100% #50 0.30 mm 10%_ 100% #100 0.15 mm 0%- 20%, #200 0.075 mm 0%- 5% A plot of the sieve analyses of the portion of the sample passing the#4 sieve shall fall on or between the lines on the following graph: PARTICLE SIZE DISTRIBUTION 100 #200 #100 #50 #3 Sieve size - -— � - -- 1 1 r _ 130 E e 70 z � � G 80 Q 6 I WW 50 - -- Q ! / W40 Cr 9 30 ! F 10 - t 0 Micron 60 200 600 2 6 10 mm ys � s 12/27/96 310 CMR-531 i