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HomeMy WebLinkAboutCorrespondence - 295 FOREST STREET 11/20/1998 Nov-20-9 03: 34P Paul De Tuv-bide, PE/COLS 508-465-0313 P .01 Facsimile Cover Sheet To: SANDRA STARR Company: NORTH ANDOVER BOH Phone: 978-688-9640 Fax: 978-688-9642 Carlton r Company-, Port Engineering i , Inc. Phone: (978) 465-8694 Fax: ) 1 Date November , Including Pages f Cover Page: 5 Enclosed are the results of pert tests on: Ralph Joyce Lot B Forest p 8 1)and Walter Joyce 595A Eoxford Street Comments on Forest Street: Only Lot B was perced, Cart Young was out flagging wetlands at 10 am when I first arrived. It is probable that a system on this lot will require a variance for 100' from wetlands. A John Deere 41 OD backhoe was used, and was unable to pick the boulders from the bottom of the pits(I believe that an excavator could go down much deeper. Evidence of this is that only 30 feet or so away was an eight to ten foot old foundation hole with the saute type of material). Thus on Test Fit 1, there was not 4 feet of permeable material observed. A system designed on today's test trust be conditioned on having an excavator go out next spring to verify a 4 foot permeble layer and to look for mottles(none were observed in the shallow'Test Pit 1). Also only one perc test was performed, so another pert will also have to be done in the spring. Thanks, Carlton I, INC. PROFESSIONAL ENGINEERS AND LAND SURVEYORS 160 SUMMER STREET HAVERHILL, MASSACHUSETTS 01830.6318 (978)373-0310 FAX; (978)372-3960 April 27, 1999 Ms. Sandy Starr, R.S. Health Administrator North Andover Board of Health 27 Charles St. N. Andover, MA. 01845 Re: ssds revisions lots A & B Forest St. for Ralph R. Joyce Dear Ms. Starr: We are in receipt of your letter dated April 16, 1999. In response to the issues raised in said letter: 1. Trenches were considered but rejected due to area limitations for the following reasons: a. ) The break out requirements would require the trenches to start approximately 30' from the southern lot line. The width of system including reserve would be an additional 321 . With the required 10' separation for the system on lot A, the total distance from the lot line would be approx. 72' to the first trench on lot A. This would not leave enough area to the 100' wetland setback for the system on lot B. b. ) Nearly twice as much of the lot on the south side of the proposed house on lot B would need to be cut and filled. c. ) The higher water table in test pit 98-12-2 would require a pump to be used in the primary system initially rather than added later should the primary system fail. 2. The leach area on Lot B has been raised .88' to have maximum 3' of cover 3. Access covers are brought to within 6" of finish grade. 4. Benchmark is located in ridge on southeast side of leach areas. 5. Pipe connecting end of leach pipes has been specified. 6. Section A-A note has been changed. Lot A Only: d before request for certificate of 7. Easement agreement will be file compliance. 8. Slope of sewer line from building is 0.01 9. Profile is revised. 10. grading at septic tank has been revised Should you have any further questions in the above matter, we are available at your convenience and can be reached by phone at, 978-373-0310. I Christiansen, P.E. cc: file 98074 Feb-29-00 03: 33P Paul D. Turbide, PE/PLS 978-465-0313 P.02 February 29, 2000 Sandra Starr North Andover Board of Health Administrator Office of Community Development and Services 30 School St. North Andover, MA 01845 RE: Title V third review for Lot A and Lot B, Forest Street, Map 106A Lot 81,82,83 Dear Sandra, Because the proposed leaching beds for both lots are so close together, and the design for both lots is shown on the plan and on the profile on both sets of designs, I have chosen to address both lots in one letter_ To the best of my determination, the plans dated February 17, 2000 have the following revisions with regards to the plans that i approved in my report dated May 6, 1999: • The building on Lot B was moved. • A pump and pump chamber was added to Lot A • The leaching bed elevations were lowered. (I note that the lowering of the leaching bed elevations is satisfactory because it still leaves a 4-foot separation between the bottom of the leaching beds and the ESHW determined for the high point of the leaching bed.) Lot A I have the following concerns for Lot A: • The leaching field must have a vent because of the proposed pump. • The pump specification notes that normally are a part of a pump system are missing on the plan(probably by mistake). Items usually addressed are: Pump can pass 1 t/4" solids, pump controls, alarm, manual operating switch, bleeder hole, etc. • The volume of effluent to be pumped and the number of cycles per day are missing. 310 CMR 2204R ® The"on" bulb switch for the pump is shown to be located only 3 inches above the"off' bulb switch. It appears that this figure should be more like 18 inches if 440 gallons is to be pumped in one dose. r1URTSURE ME ME Lot 13 ENGINEERING I find that the revisions to the design dated February 17, 2000 adequately address the regulations. Civil Engineers 8t If you have any questions or comments please feel free to contact me. Land Surveyors One Harris Street Sincerely Newburyporl,NIA 01950 Carlton A. Brown, PE/PLS (978)465-8594 Foresta 106a-86c Town of North Andover NORTH E io 1 OFFICE OF �� �`t °0 COMMUNITY DEVELOPMENT SERVICES p 27 Charles Street t North Andover, Massachusetts 01845 4°^•r ° ° �y WILLLA,M J. SCOTT 9SSACHUSEt Director (978)688-9531 Fax (978)688-9542 March 6, 2000 Christiansen& Sergi 160 Summer Street Haverhill, MA 01830 RE: Lots A& B Forest Street(Map 106A, 81, 82, 83) Dear Mr. Christiansen: This is to inform you of the approval status for the proposed septic systems on these two lots. Lot A still has the following technical deficiencies: • The leach field is missing a vent(needed because of the proposed pump system). • Pump specifications are missing. • Volume of effluent to be pumped and the number of cycles per day area missing(3 10 CMR 15.22(04)R. • The"on" switch for the pump is shown to be located only 3" above the"off' switch which appears to be incorrect if 440 gallons are to be pumped in one dose. The plans dated February 17, 2000 are approved for a dwelling with a maximum of nine rooms. Please call the office at 978-688-9540 if you have any questions. Sincerely, Sandra Starr,R.S., C.H.O. Health Director Cc: Ralph Joyce File BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 HEALTH 688-9540 PLANNING 688-9535