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Home My WebLink AboutSeptic System - Correspondence - 469 BOSTON STREET 11/22/2019 12/10/2019 Town of North Andover Mail-Final Construction Inspection-469 Boston Street NORTH--( ANDOVER Massachusetts Stephen Casey<scasey@northandoverma.gov> Final Construction Inspection - 469 Boston Street 2 messages Dan Ottenheimer<dano@millriverconsulting.com> Fri, Nov 22, 2019 at 9:21 AM To: Brian LaGrasse <blagrasse@northandoverma.gov>, Stephen Casey<scasey@northandoverma.gov>, Toni Wolfenden <tolfenden@north and overma.gov> Cc: Sandra Lezcano <sandral@millriverconsulting.com> Brian, Steve, Toni - Attached please find the findings of our inspection at 469 Boston Street. There were some unresolved issues which will need to be re-examined. You can likely do so at the final grade inspection, or we can do so if you'd like. They are noted on the report and also explained below: • The distribution box did not have hydraulic cement at the pipe penetrations • There was not enough water in the pump chamber to confirm the operation of the pump • There was not even flow coming out of the distribution box to the three arms of the leach field. The branch closest to the dwelling was not receiving much of any flow. They reported they were going to either adjust the pipes or d-box, or else put in leveling devised inside the pipe. I asked them if they did the latter to check to make sure they have not restricted the flow to the field when the pump turned on The contractor was going to leave the distribution box area uncovered so these items can be reviewed at the final grade inspection. Any questions, do let me know. Dan Daniel Ottenheimer, PE President https://mail.google.com/mail/u/0?ik=fb8Oa9478f&view=pt&search=all&permthid=thread-f%3Al650912139045305497&simpl=msg-f%3A165091213904... 1/2 11/13/2019 Town of North Andover Mail-469 Boston St-Question .._-___.----._---- NORTH ANDOVER Massachusetts ,, Stephen Casey<scasey@northandoverma.gov> 469 Boston St - Question Dan Ottenheimer<dano@millriverconsulting.com> Wed, Nov 13, 2019 at 12:35 PM To: Stephen Casey<scasey@northandoverma.gov> In looking at the plans there are a number of other features that look like they were survey located which could be used as a replacement benchmark. For example there is a grade show on what appears to be the edge of the driveway and another one on a different part of the house. I would NOT encourage someone to use the bottom of something that they constructed as a benchmark since anything that remotely relates to survey control is pure fabrication. Why did the designer go along with this?Why did he not tell you about the other survey control points that he had? I would approach this with a good degree of caution. The designer should provide a new benchmark and indicate to you in writing what it is. Let me know if you'd like me to help further with this at all. Dan [Quoted text hidden] All email messages and attached content sent from and to this email account are public records unless qualified as an exemption under the Massachusetts Public Records Law. Visit us online at www.northandoverma.gov. https://mail.goog le.com/mai I/u/0?ik=fb8Oa9478f&view=pt&search=a II&permmsgid=msg-f°/a3Al 650108943458750357&simpl=msci-f°/o3A l 65010894345... 1/1 11/13/2019 Town of North Andover Mail-[North Andover MA]469 Boston(Sent by Jim Kavanaugh, Kavanaughj@msn.com) N ORTK AN DOVER Massachusetts Stephen Casey<scasey@northandoverma.gov> [North Andover MA] 469 Boston (Sent by Jim Kavanaugh, Kavanaughj@msn.com) 2 messages Contact form at North Andover MA <crosmailer@civicplus.com> Wed, Nov 13, 2019 at 3:40 PM Reply-To: Kavanaughj@msn.com To: scasey@northandoverma.gov Hello scasey, Jim Kavanaugh (Kavanaughj@msn.com)has sent you a message via your contact form (https://www.northandoverma.gov/user/2363/contact)at North Andover MA. If you don't want to receive such e-mails, you can change your settings at https://www.northandoverma.gov/user/2363/edit. Message: Steve, As discussed, enclosed is a sketch of benchmark revision. Do to the original benchmark that was placed on a tree on site,which no longer exists, the benchmark on approved drawing was interpolated, as best possible. The contractor was instructed to verify the bottom of existing system elevation, infiltrator, and report to engineer. Based on actual field verification and to ensure that the bottom of proposed system meets the 4 ft. of separation to groundwater, the benchmark on approved plan will require modification. The difference in benchmark elevations is 0.4 ft. Therefore, the contractor will now use a bottom of siding benchmark of 103.98', which is shown on enclosed plan. Any questions please let me know. Thanks Jim 978-375-9781 bmrevision.jpg 337K R„ Stephen Casey<scasey@northandoverma.gov> Wed, Nov 13, 2019 at 3:54 PM To: Dan Ottenheimer<dano@millriverconsulting.com> Hi Dan, https://mail.goog le.com/mai I/u/0?ik=fb8Oa9478f&view=pt&search=all&permthid=thread-f%3Al 650120566512216927&simpl=msg-f%3A165012056651... 1/2 11/13/2019 Town of North Andover Mail-[North Andover MA]469 Boston(Sent by Jim Kavanaugh, Kavanaughj@msn.com) Attached is the sketch the designer sent me for 469 Boston St. It looks like he used the Bottom of Siding as the new benchmark. The elevation he noted is .4 different than the plan states. Does he need updated elevations for the inverts/system as well, or is this acceptable?Any feedback is appreciated. Best, Steve [Quoted text hidden] Stephen Casey Jr. Health Inspector Town of North Andover ` bmrevision.jpg IF , ., :_, 337K https://mai l.google.com/mail/u/0?ik=fb8Oa9478f&view=pt&search=all&permth id=th read-f%3A1650120566512216927&simpl=msg-f%3A165012056651... 2/2 11/14/2019 fieldchange.jpg Environmental Consultant JAMES M.KAVANAUGH,P.E. •Engineering Consultant 14 Shady Hill Drive • Septic System Designs North Reading,MA 01864 •Construction Services Tel./Fax(978)664-2925 • Custom Home Builder tlfl3jly V �.� L .I1i.:.'I' '� O^' /' v i/a n h('• J/ �0 7 Sjo EL� /,��U q'� b/ %n/!'l/a✓,ram.- pts t<i ..+"'" ,.�sh�� F N, 103.R8 C� V r.[} q! /�)g��,J �.✓ gvai/m� (-�c�i1 1/cr��Ga�10,., l 0• �d ,(�i/�U�'y"✓I /�6��M 0 L 6 D Pf G f Y 0 ,(`_0.....IIJIFF/l�..lAl..,...,..-�A...!`V..:..7.....:....a..--4 0-------n.... A—n 4 w.w 11/15/2019 Elevsched.jpg Environmental Consultant JAMES M.KAVANAUGH,P.E. •Real Estate Brokerage 14 Shady Hill Drive • Septic System Designs North Reading,MA 01864 •Construction Services (978)664-2925 •Custom Home Builder Revised Elevations for 469 Boston St. N. Andover BENCHMARK BOT.OF SIDING 103.58' SCHEDULE OF PIPE INVERTS LOCATION LETTER INVERT HOUSE OUTLET SEPTIC TANK INLET A EXISTING SEPTIC TANK OUTLET B EXISTING PUMP CHAMBER INLET C EXISTING EXISTING PUMP CHAMBER OUTLET D EXISTING DISTR. BOX INLET E 99.67 DISTR. BOX OUTLET F 99.50' BEG. DISTR. FIELD G 99.4.1' END DISTR. FIELD H 99.18' BOTTOM OF FIELD 98.68, REVISED 11/15/19 hTTnc//mnil nnnnlo rnmlm�illi i//1/7T�h-,,m�{inhnv/C�Afrn.n..(_RmnRA C4.InrLflmm�l7LLlAT7� AA7nri, ,n1..r-14......-...,....0-,.11.1-/1 A 4/4