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HomeMy WebLinkAboutPlans - 976 TURNPIKE STREET 10/8/2015 Sullivan Engineering Group, LLC Civil Engineers&Land Development Consultants July 10,2015 RECEIVED Town of North Andover Board of Health 13 1600 Osgood Street, Suite 2035 North Andover,MA 01845 �� �NOR�CA ANDOVER Re: 976 Turnpike Street, North Andover Septic Upgrade Plan Board of Health; Enclosed are three(3) sets of the revised Septic Upgrade Plans for your review. All of the changes and/or revisions have been made to the plans. The numbered items below are the review comments and the changes I made are in italics. 1. On sheet 1 of 2,the finished side slope of the mounded system is steeper than 3:1 hone`"o t 1: vertical (310 CMR 15.255(2)). The finished side slopes have been adjusted to a 3:1 slope. 2. On sheet 1 oft,the proposed deck and pump chamber do not meet with minimum setbacks in the North Andover Board of Health regulations (NA BOH 3.9). The deck was reduced in size to 12 x12'and the pump chamber relocated to provide a Minimum of 5 feet from the deck to pump chamber. A note was added to the plan reflecting this as well. The deck is to be constructed on piers. 3. On sheet 1 of 2, although noted on the plan,the other building sewer line proposed into the septic tank is not depicted on the site plan. If bends are proposed in the building sewer line(s)a cleanout is required. The other building sewer exiting the foundation is shown and cleanouts depicted at the two bend locations. 4. Annual maintenance of the effluent filter is required and should be noted on the design plan (310CMR 227(7)). Note added...see Note #19 5. On sheet 1 of 2,the site plan and profile do not provide adequate cover material above the proposed tanks(310 CMR 228(1)). This has been corrected. In the profile a note has been added to provide a minimum 9" of cover over each tank. 6. On sheet I of 2,the sizing calculations for the conventional system depicts the incorrect "leach area provided" for the trench length and square footage. This has been corrected. 7. On sheet 1 oft,if finish grades are proposed within 5'of the property line a swale is required (310 CMR 15.255(2)). A proposed Swale has been depicted and noted. 8. On sheet 2 of 2,pump calculation note#10 depicts the incorrect reserve capacity of 412 and 453 gallons based on the available volume above the alarm float of 33". Additionally the gallons/ vertical foot appear to be based on a smaller pump chamber. Please modify the emergency storage calculations as needed. This has been corrected to reflect the larger pump chamber. 9. On sheet 2 oft,pump calculation note#11 indicates a maximum operating point of 40 GPM with a total head of 14.22 feet. This operating point appears to be beyond the pump performance curve for the selected pump. Therefore indicating the pump may not be able to provide necessary flow against the calculated head. Please confirm if the selected pump will meet the operating point or revise the pump selection as needed. This is corrected....patrrtp will run at 34 GPM at 14.22 feet afhead which is sufficient For the pianp selected. 10. On sheet 1 of 2, the slope of the longest line from the distribution box to the Infiltrator Chamber inlet appears to be approximately 0.002' based on an 18ft+/- length of pipe. The design plan proposes a slope ofO01 '. The eleveations hm e been adjusted to insure a min. I%of pitch on the pipes 11. Although not a reason for disapproval, you may wish to minimize the force main length by proposing the distribution box on the northern side of the leach field. The d-box was moved to the northern side of the field 12. Since the Infiltrator Chamber system is proposed as an alternative soil absorption system the "Standard Conditions for Alternative Soil Absorption Systems with General Use Certification and/or Approved for Remedial Use"will apply. Please provide the following as required by the approval conditions c) certification by the Designer that the design conforms to the Approval, any Company Design Guidance, and 310 CMR 15.000; and This note has been added on Sheet I in the upper left corner of page If you have any questions please feel free to contact me. Very Tr ly Yo , J ck S Ivan,PE i roWN UiF' Nt L"i F1 VIMtt EIl f"ice o C MIryIIIWI IJN11"' )IIµII�Iy�IIIIy V.�II�II1,OP1 ENT N tM , 1 978-688,9540 11hoine, Public Health th Director L''MAJ Lz fit�u����;-�Q�����9.�It"E"�r?Q�r��m�p.�:�������4k�;m�ua�a�����r����.a,a��iu� SEPTIC PLAN SUBMITTAL FORM Date of Submission:June 25, 2015ii 976 Turnpike Street � ry Site Location: P Engineer: Jack Sullivan - Sullivan Engineering Group, LLC New Plans? Yes X $225/Plan Check# (includes 1"submission and one re- review only) Revised Plans?Yes $75/Plan Check# Site Evaluation Forms included? Yes X No Local Upgrade Form Included? Yes No -N/A Telephone M 781-854-8644 Fax M E-mall:jacksu1153@comcast.net Homeowner Name:JEM PROPERTY GROUP 603-493-0992(CELL) OFFICE USE ONLY When the submission is complete(including check): ➢ Date stamp plans and letter ➢ Complete and attach Receipt ➢ Copy File;Forward to Consultant ➢ Enter on Log Sheet and Database 4 A 3d TSM t1i .p W N a pQy a. �" W M m cn -o n o -n -n c f° n (D m U) (1) 0 CA o `"� o O 0. 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