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HomeMy WebLinkAboutCorrespondence - 42 OLYMPIC LANE 11/7/2005 ��.. ...... .._... I NC -.. _......� � , November 7, 2005 Susan Sawyer North Andover Board of Health 400 Osgood Street North.Andover, MA 01845 Re: 42 Olympic Lane, North Andover, MA Alternative Design Criteria Using Quick 4 Standard Chambers Dear Ms. Sawyer, This letter is written to provide supporting design computations in anticipation of a field change with respect to the Infiltrator Chambers. It has been brought to our attention that the Infiltrator-Standard Chamber has limited availability with some distributors. In the event that the Infiltrator-Standard Chambers are not available, the Infiltrator-Quick4 Standard Chambers shall be used. Equivalent design calculations are as follows: Design Data (Infiltrator Quick 4 Standard Chambers) Percolation Rate: Design for 6 minutes per inch. Soil Class: I Design Flow: 5 Bedrooms x 110 gallons per day= 550 gallons per day Loading Rate: 0.70 gallons per square foot System size required: 500 gallons per day/ 0.70 = 785.71 sq. ft. System size provided: Use Quick 4 Standard Infiltrator units in a leach bed configuration Effective leach area per lineal foot of Infiltrator Quick 4 chamber: 4.72 square feet Lineal feet of Infiltrator Chamber required: 785.71 sq. ft. /4.72 sq. ft. per lin. ft. = 166.46 ft. 166.46 lineal feet/4 lineal feet per chamber=41.61 chambers required Use 4 rows of I I chambers 44 feet long each row= 176 total lineal feet of chamber = 830.72 effective sq. ft. leach area. Septic tank required: 200% of daily flow (550 gallons x 2 = 1 100 gallons) Septic tank provided: New 1500 gallon septic tank 60 !il':EC.;6M)OD DRIVE - NCJ6RTH ANDOVER, MA 01645-(97 9)666-17M,. (868)359-7645 , FAX(978)685-1099 Profile Data (Infiltrator Quick 4 Standard Chambers) Bottom of Bed Elev.: 94.34 Infiltrator Invert Elev.: 95.01 D-Box Outlet Elev.: 95.11 D-Box Inlet Elev.: 95.28 Tank Outlet Elev.: 95.63 Tank Inlet Elev.: 95.88 Foundation Invert Elev.: To Remain 96.50 Min. *Slope from foundation to tank shall be minimum 2%. *Slope from tank to distribution box shall be I%. As with the Infiltrator Standard Chambers,the installer must be trained and certified by Infiltrator Systems, Inc. Details of the Infiltrator Quick 4 Standard chamber can be obtained from New England Engineering Services, Inc. at(978) 686-1768, or Infiltrator Systems, Inc. at(888) 886- 7704. The following documents are enclosed: 1. DEP approval-Modified Certification for General Use for the Quick4 Standard chamber. 2. Infiltrator Quick 4 Standard Chamber Product Brochure. 3. Infiltrator Quick 4 Standard Chamber Installation Instructions Please accept this letter and enclosures as supporting documentation to aid in the review and approval for the septic system design plan entitled, "Proposed Subsurface Sewage Disposal System, 42 Olympic Lane,North Andover, MA, Assessors Map 106B, Lot 110," dated September 13, 2005. Please contact this office with any questions or concerns. Sincerely, Thomas Hector Project Engineer TOWN N Oih LVORTH ANDOVER � NORTH A O tt�a° ;atl Q.A Office of COiM1�Yl�NITY DEVELOPI ENT AND SERVICES 0� °p HEALTH DEPARTMENT 400 OSGOOD STREET ` 'i/ pON,n° 'Pygy NORTH ANDOVER, MASSACHUSETTS 01845 "SSACHUS1` Susan Y. Sawyer, REHS;RS 978.688.9540—Phone Public Health Director 978.688.9542—FAX November 7,2005 Ann and John Collins 42 Olympic Lane North Andover, MA 01845 RE: Subsurface Sewage Disposal System Plan for 42 Olympic Lane, May 106B, Lot 110 Dear Mr.&Mrs. Collins The North Andover Board of Health has completed the review of the septic system design plans for the above referenced property submitted on your behalf by New England Engineering Services dated September 13,2005 and received by this office on September 13,2005. The design has been approved for use in the construction of an upgrade onsite septic system. This approval is valid for three years fi•om the date of this letter and during this time a licensed septic system installer must obtain a permit and complete this work, and a Certificate of Compliance must be endorsed by the installer,designer and the Town of North Andover. This approval is subject to the following conditions: 1. If site conditions are found in the field to be different from those indicated on the design plan and/or soil evaluation,the originally issued Disposal System Construction Permit is void, installation shall stop,and the applicant shall reapply for a new Disposal Systems Construction Permit(3 10 CMR 15.020(1)). 2. It is the responsibility of the applicant and/or the applicant's septic system designer,septic system installer or other representative to ensure that all other state and municipal requirements are met. These may include review by the Conservation Cormnission,Zoning Board, Planning Board, Building Inspector,Plumbing Inspector and/or Electrical Inspector. The issuance of a Disposal System Construction Permit shall not construe and/or imply compliance with any of the aforementioned requirements. 3. The plan does not call for installation of a septic tank effluent filter but one is recommended. Please be advised that only certain brands of filters are permitted for use in Massachusetts and each is required to follow certain approval criteria. Your designer or installer should work with you to assure a licensed brand is selected for use, if you choose to install one. 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,,/ / SusuflY. Sawyer, REHS/R`S Public Health Director encl: List of licensed septic system installers cc: New England Engineering Services file Nary 14 03 01 -.03r)', ;'c :iIP' '17H ANDOVER ",' 9786' 19542 Town of North Andover HEALTH DEPART NT 27 Charles Street North Andover,lbw. 01845 978.688.9540 SEPTIC PLAN -SUBMITTAL FORM heap/arlep��`ativirnfnartlrarrdaver.cr�nr li DATE OF SUBMISSION: /3 D SITE LOCATION: l ETdGINEER: v� ale') NEW PLANS: YES h` $225.00/Plan d S- oU Check (includes X"(IVCW and otre Re-freview Clrrly) REVISED PLANS: YES_ $75.00/Plan� Check#: SITE EVALUATION 7F'ORl'AS INCLUDED: 4�Ts-_...� NO LOCAL UPGRADE FORM INCLUDED: YES NO Telephone#:� �� �o ' Lr �' Fax E-mail: 4cej7e",l) ad c6r),L Ut JvW �►MEf.IWNE�NAIW1[E: ' r aFFICE USE oNZ Y Wien the submission is complete(including check). 1. d ''F Date stamp plans and letter 2• Complete and attach Receipt 3. Co py File; Forward to Consultant 4: b"' Enter on Log Sheet and.Database f .__.._......... � ..�..... .W September 13, 2005 Susan Sawyer '..z North Andover Board of I lealth 400 Osgood Street !",3 E 1" 00' North Andover, MA 01 845 �,.. Re: 42 Olympic Lane, North Andover, MA Septic System llesign Plan Submittal Dear Ms. Sawyer The following plans and enclosures for the above referenced property are being submitted for approval. 1. (3) Copies of the Septic System. Design Plans. 2. (2) Copies of the Form I 1 Soil Evaluator Sheets. 3. (''.) Copies of the Form 12-Percolation Test Sheets. 4. Septic Design Submittal Form. 5. Check for the Town approval fees. Please contact this office with any questions or concerns. Sincerely, --11 4k-- Thomas hector Project Engineer 60 BE:E.CFiwoOD DRIVE~- NORTOA APVl:7t;7VER, MA 01845-.(9-78)686-1.766-(888)359-7645- FAX(9.78)685-1099 Commonwealth Of Massachusetts City/Town Of Vor4 I _ Percolation Test Farm 12 - r I Percolation test results must be submitted with the Soil Suitability Assrrteht-form-siteSoVvage Disposal. DEP has provided this form for use by local Boards of Health. Other forms may be used, but the information must be substantially the same as that provided here. Before using this form, check with the local Board of Health to determine the form they use. Important: A. Site Information When filling out forms on the computer, use John Collins only the tab key Owner Name to move your 42 Olympic Lane ccursor-do not -- _ __-- — cur Street Address or Lot# the return 01845 key, North Andover MA City/Town State Zip Code 978 682-3874 Contact Person(if different from Owner) Telephone Number 13-. 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