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Home My WebLink AboutSeptic - Full Repair - Correspondence - 199 OLD CART WAY 8/5/2022 8/9/22,8:29 AM Town of North Andover Mail-Final cover-199 Old Cart Way NORTH ANDOVER Massachusetts Stephen Casey<scasey@northandoverma.gov> Final cover - 199 Old Cart Way 7 messages Daniel Ottenheimer<dano@millriverconsulting.com> Fri,Aug 5, 2022 at 4:20 PM To: "Bill Dufresne(wrd ufresne@comcast.net)"<wrdufresne@comcast.net> Cc: Stephen Casey<scasey@northandoverma.gov>, "bjseale3@gmail.com"<bjseale3@gmail.com> Bill, Our construction inspection at the above site earlier today observed the likely situation whereby there will be more than 3'of cover material over the soil absorption system if it is backfilled to meet the adjacent grade. This is going to need the engineer to decide on a path to pursue. Please review this matter with Mr. Nemchenok and have him let the Town (and me)know what is to be done about this situation. Options that strike me as possible solutions include a wall of some sort, lowering the adjacent grade, removing and raising the soil absorption system or possibly requesting a Local Upgrade Approval. He might have other solutions as well. Thank you very much, Dan Daniel Ottenheimer, PE President :: MILL RIVER CONSULTING (native Solutinus for Lutd Dm-elopment 6 Sargent Street Gloucester, MA 01930-2719 Phone:978-282-0014 ext.802 www.millriverconsulting.com https://mail.google.com/mail/u/0/?ik=fb8Oa9478f&view=pt&search=all&permthid=thread-f%3Al 740353938133426373&simpl=msg-f%3A1 7403539381... 1/3 8/9122,8:29 AM Town of North Andover Mail-Final cover-199 Old Cart Way Blake Seale<bjseale3@gmail.com> Sat,Aug 6, 2022 at 7:46 PM To: Daniel Ottenheimer<dano@millriverconsulting.com> Cc: "Bill Dufresne(wrdufresne@comcast.net)"<wrdufresne@comcast.net>,Stephen Casey<scasey@northandoverma.gov> Am I all set to start backfilling first thing Monday morning????? Thanks Blake [Quoted text hidden] If you have any questions or concerns please contact me on my cell phone listed below or email me back at this address Thank you Blake J. Seale Hathorne Construction Co. (978)697-8773 Daniel Ottenheimer<dano@millriverconsulting.com> Sun,Aug 7,2022 at 10:23 AM To: Blake Seale<bjseale3@gmail.com> Cc: "Bill Dufresne(wrdufresne@com cast.net)"<wrdufresne@com cast.net>, Stephen Casey<scasey@northandoverma.gov> From the Town's perspective,the craftsmanship of the work we examined was fine. Note that it is not the Town's role to control job- site construction activities so we cannot tell you if you can backfill the project or not. Ultimately,we need an approach developed to how the>3' of cover over the soil absorption system will be addressed before final-sign off can be provided, and you will need to demonstrate compliance with that approach (as recommended by the engineer). [Quoted text hidden] Blake Seale<bjseale3@gmail.com> Sun, Aug 7,2022 at 4:42 PM To: Daniel Ottenheimer<dano@millriverconsulting.com> Cc: "Bill Dufresne(wrdufresne@com cast.net)"<wrd ufresne@comcast.net>, Stephen Casey<scasey@northandoverma.gov> Ok,thanks. [Quoted text hidden] William Dufresne<wrd ufresne@comcast.net> Mon,Aug 8, 2022 at 11:28 AM To: Daniel Ottenheimer<dano@millriverconsulting.com>, Blake Seale<bjseale3@gmail.com>, "blagrasse@northandoverma.gov" <blagrasse@northandoverma.gov> Cc: Stephen Casey<scasey@northandoverma.gov> All In dealing with matters relating to the 3 foot cover requirement pursuant Title 5 as revised March 1995, the new codes states that no system components shall be greater than 3 feet deep. The older code allowed for an SAS to greater than 3 feet deep provided in is vented. When we do septic system upgrade designs and construction, often the existing conditions, site grades and sewer pipe elevations, which cannot feasibly be altered, are such, that it results in portions of the SAS being greater than 3 feet deep, as such we vent the systems and it has been the practice that this falls under the definition or umbrella of of MAXIMUM FEASIBLE COMPLIANCE as defined in Title 5. When considering matters such as this, the codes clearly states that the economic feasibility of the upgrade requirements shall be considered. In this case, the alternative would be to install a second pump tank and pump system and elevate the soil absorption system such that is has less than 3 feet of cover. the cost of this change is the the area of$7,000 -$9,000 for installation of the pump and pump tank, electrical work, additional sand fill and site work to install. Never in my experience has this economic responsibility of raising the SAS been enforced for the purpose of avoiding 3 feet of cover over a system. Venting has always been the acceptable solution or practice and of course, all structures raised to within 6 inches of finish grade with risers and covers so they are easily accessible. https://mail.goog le.co m/mail/u/0/?i k=fb8Oa9478f&view=pt&search=a I I&pe rmth id=th read-f%3A 1740353938133426373&si m p I=msg-f%3Al 7403539381... 2/3 8/9/22,8:29 AM Town of North Andover Mail-Final cover-199 Old Cart Way The ultimate decision however is up to the approving authority, the NA BOH. Please let us know how you wish to proceed with this matter. Thank you Bill [Quoted text hidden] Daniel Ottenheimer<dano@millriverconsulting.com> Mon,Aug 8, 2022 at 11:35 AM To: William Dufresne<wrd ufresne@comcast.net>, Blake Seale<bjseale3@gmail.com>, "blagrasse@northandoverma.gov" <blagrasse@northandoverma.gov> Cc: Stephen Casey<scasey@northandoverma.gov> A proposed solution needs to be provided to the Town to review. This is not the Town's preemptive decision to make,the Town will respond to a proposed solution which is made by Merrimack Engineering Services. In my e-mail of Friday I [aid out several options for your consideration, and you might have others. There needs to be a proposed solution to be made by you and the engineer of record. Please let us know what path you intend to pursue. Thanks, [Quoted text hidden] William Dufresne <wrdufresne@comcast.net> Mon,Aug 8, 2022 at 2:02 PM To: Daniel Ottenheimer<dano@millriverconsulting.com>, Blake Seale<bjseale3@gmail.com>, "blagrasse@northandoverma.gov" <b lag rasse@northandoverma.gov> Cc: Stephen Casey<scasey@northandoverma.gov>, "pdaley@tuftsmedicalcenter.org"<pdaley@tuftsmedicalcenter.org> Dan, Brian & Steve After discussions with the owner, we would like to request an additional LUX Attached please find a revised and re-dated Form 9A for your review and consideration. Thank you Bill [Quoted text hidden] -n 199 Old Cart Form 9A.pdf 1221 K https:Hmai l.google.com/mail/u/0/?ik=fb8Oa9478f&view=pt&search=al I&permthid=thread-f%3A1740353938133426373&sim pl=msg-f%3A17403539381... 3/3 7/25/22,3:36 PM Town of North Andover Mail-199 Old Cart Way NORTH ANDOVER Massachusetts Toni Wolfenden <twolfenden@northandoverma.gov> 199 Old Cart Way 1 message William Dufresne <wrdufresne@comcast.net> Mon, Jul 25, 2022 at 3:35 PM To: Stephen Casey<scasey@northandoverma.gov>, "blagrasse@northandoverma.gov" <blagrasse@northandoverma.gov>, "twolfenden@northandoverma.gov"<twolfenden@northandoverma.gov> I was on site today laying out the leach field for the contractor, Blake Hawthorne. He discovered that some of the existing grades shown on our plan seem to be incorrect. I performed a survey with him and confirmed that some of the existing site grades shown on our plan are not accurate representing the ground to be lower than it actually is, which results in some of the existing & proposed system components seeming to be higher in the ground or even out of the ground, which we know is not the case as the system is beneath the ground surface. The likely cause was that this survey was done with snow cover, and that can sometimes raise an issue with a GPS survey point interpretation, so at some point during the survey there was a bust in the vertical control. I am not making excuses, this is an error which falls on us, I am simply explaining what may have happened. Portions of the survey are accurate, others are not. The issue is purely vertical and not horizontal and does not affect the location or layout of any existing or proposed features of the design. I surveyed the elevation of the existing test pits and ground today and adjusted the plan accordingly. This error does not impact the layout or location of the system design and had a net change in elevations of the field and distribution box of approximately 3 inches. The water table on site was greater than 130 inches so the system is deep enough from the existing ground surface and that there is a couple excess feet of grade so distance to water table is not an issue, and no breakout issues or geo membrane barriers are necessary. Not that this happens often, as it does not, but when field changes are required during construction we typically submit red line revisions for you to put on file as a record of the field change and then reflect the new design and elevations on the as-built. Attached is a red line of the field changes to the elevations on the plan profile as well as a plan of the original survey and the spots elevations that I confirmed on site today. I will drop off paper copies to your office. If you feel this is not an appropriate manner in which to address the issue, please let me know what course of action to take and we will do so immediately. The Contractor has a copy of the revised elevations. Sorry for this distraction and confusion. Thank you Bill Dufresne Merrimack Engineering https://mail.goog le.com/mail/u/0/?ik=aOc6f4e4cf&view=pt&search=all&permth id=thread-f%3Al 739354527623710416&si mpl=msg-f%3Al 7393545276... 1/2 7/25/22,3:36 PM Town of North Andover Mail-199 Old Cart Way 2 attachments i t e 1 199 Old Csart Way Field Changes.jpg 406K u 5 199 Old Cart Way Field Changes 2.pdf 338K https://mail.google.com/mai I/u/0/?i k=aOc6f4e4cf&view=pt&search=a II&permthid=thread-f%3Al 739354527623710416&simpl=msg-f%3Al 7393545276... 2/2 zw L7 7 L C)LrAcH nrLD 07 ALI 41.Tl CL �!Al*hlC PROFILE CZ co ED V) U) E 06 LL % ED w my 2 cn CL cl. x 0 0) x N A.-,;!m a-BOX DETAILS- CL SEPTIC TANK DETAILS > z PERC TEST RESULTS CL N DEEP TEST RESULTS 0) LL PROFILE _R 0 UPGRADE PLAN OF SUBSURFACE SEWAGE DISPOSAL SYSTEM NORTH ANDOVER, MASS. 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