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Home My WebLink AboutCorrespondence - 60 ROCKY BROOK ROAD 11/22/1995 L w, d� Al � 1.1(--)MA S :,' NI ASS( (""A 7 NEV, IAPT0419 I-N(--1 Ae November 22, 1995 Sandra Starr, R. S. North Andover Board of Health 146 Main Street North Andover, MA 01845 Re: Soil Data- Rocky Brook Road Dear Sandy: We have reviewed our files on the lots remaining to be built on Rocky Brook Road. The lots remaining to be permitted are IA, 2A, 3A, 9, 14A and 19. These lots have all been previously tested, both deep holes and perc tests, however most were performed in 1993 which have expired according to your local regulations. Furthermore new soil evaluation criteria is now being used and all systems must be designed according to 1995 criteria. I would like to perform deep hole tests in the locations where we expect the systems to be located, so that final designs can be done. Please review the plans and schedule an appropriate time to witness these tests. I thank you in advance for your continued cooperation. Sincerely, THOMA S: NEVF,��SSOCIATES, INC. �. 6F . Thomas E. Neve, PE, PLS 0 President, CEO rn ✓ "y° TEN/ebc cc: Peter Breen msworks/cl ient/5 50.doc ENGINEERS e e LAND SURVEYORS LAND USE PLANNERS 447 Old Boston Road l.l.S. I°OWE) #1 1i psfield, MA 01983 (508) 887-8586 FAX (508) 887-3480 arooK f ®, Zak (°CR�rw Ghd'� V 1� 1 14--Z z1 / - --- — ► TI-10MAS E. N11j"VE ASSO(]JAXES, 'Aa October 23, 1996 Ms. Sandy Starr Board of Health 146 Main Street North Andover, MA 01845 Re: Lot I Rocky Brook Road Dear Sandy: Please find attached three (3) prints of the sanitary disposal system for the above- referenced lot for your review. The system is designed for 110 gallons/bedroom/day, 3' separation between reserve trench and primary and 90' from the edge of wetlands. It is our understanding that the Board of Health has approved the use of a design flow of 110 gallons/bedroom/day, therefore, we will not be requesting a waiver for the design flow. However, we are requesting a waiver for the distance between reserve area and primary as well as distance from septic system to wetlands. Section 2.23 of the North Andover Board of Health regulations requires a minimum separation of 4' between reserve area and primary area. This system is designed according to Title V, maintaining a separation distance between primary leach trenches of three times the effective width or 9', therefore, resulting in a separation distance between reserve and primary area of 3'. The length of the leach trenches were designed as short as possible in order to maintain the largest separation distance between the leach trenches and the wetlands, therefore resulting in the use of 4 trenches. Maintaining the 4' separation between reserve area and primary area would increase the system width from 45' to 52', this in turn would require the use of a concrete breakout wall to be used in order to meet the breakout requirement. We feel that since the system is designed according to the State Code, "Title V", that the additional I' of separation be waived in order to avoid the use of a breakout wall, which is allowed by code, however, grading is preferred wherever possible. ENGINEERS e e LAND SUIRVEYOnS USE PLANNERS 447 Old Boston I=lc.ad U.S. ROUte ff1 lbpsfield, MA 01983 (508) 887-8586 FAX (508) 887-3480 Ms. Sandy Starr, NAB October 23, 1996 Page 2 Section 4.18 of the North Andover Board of Health requirements require a 100' separation distance between leaching facility and wetlands. Title V allows a distance of 50' from wetlands to leaching facility, this system is designed 90' from the edge of wetlands. As stated above, the trenches were designed as short as possible and as deep as possible in order to provide the maximum spacing between leaching facility to wetlands. Since we far exceed the state requirement, we feel that the same amount of environmental protection is achieved that the Town is seeking. Please schedule us for your next available Board of Health meeting so that we can discuss these issues. If you should have any questions or concerns please do not hesitate to call. Very truly yours, THOMAS E. NEVE ASSOCIATES, INC. John Morin, E.I.T. Civil Engineering Consultant JM/km Enclosures #550 BREEN.WPS 'n 10M AS' 11j'* V11'j" b. S _ ES, FEB January 29, 1997 Ms. Sandy Starr Board of Health 146 Main Street North Andover, MA 01845 Re: Lot 1 B Rocky Brook Road (formerly Lot 1 A) Dear Sandy: Please find attached three (3) prints of the revised sanitary disposal system for the above- referenced lot for your review. The system is designed for 110 gallons/bedroom/day, 2' separation between reserve trench and primary and 51' from the edge of wetlands. It is our understanding that the Board of Health has approved the use of a design flow of 110 gallons/bedroom/day, therefore, we will not be requesting a waiver for the design flow. However, we are requesting a waiver for the distance between reserve area and primary as well as distance from septic system to wetlands. Section 2.23 of the North Andover Board of Health regulations requires a minimum separation of 4' between reserve area and primary area. This system is designed according to Title V, maintaining a separation distance between primary leach trenches of three times the effective width or 6', therefore, resulting in a separation distance between reserve and primary area of 2'. We feel that since the system is designed according to the State Code, "Title V", that the additional 2' of separation be waived. Section 4.18 of the North Andover Board of Health requirements require a 100' separation distance between leaching facility and wetlands. Title V allows a distance of 50' from wetlands to leaching facility, this system is designed 51' from the edge of wetlands. The trenches were designed as short as possible and as deep as possible in order to provide the maximum spacing between leaching facility to wetlands. ENGINEERS e au (_AND SURVEYORS o @..,DCVO USE PLANNERS 447 Old Boston Road U.S. Route Ill psfield )€�) E�E01983 (' Ms. Sandy Starr, NABH Page 2 January 29, 1997 This system is designed 5' above maximum seasonal high groundwater in soils with a slow percolation rate. By evaluating these design parameters, this system design will provide further environmental protection than is required under the state regulations. Please schedule us for your next February 27, 1997 Board of Health meeting so that we can discuss these issues. If you should have any questions or concerns please do not hesitate to call. Very truly yours, THOMAS E. NEVE ASSOCIATES, INC. ()4yt John Morin, E.I.T. Civil Engineering Consultant JM/l(m Enclosures 4550 BREEN.WPS TH Town of North over of I OFFICE OF '0 OOH Z. COMMUNITY DEVELOPMENT AND SERVICES 146 Main Street 0 North Andover,Massachusetts 01845 WILLIAM J. SCOTT SACH I Director March 4, 1997 Stephen Breen 345 Stevens Street North Andover, MA 01845 RE: Lot 1 B Rocky Brook Dear Mr. Breen: This letter is to confirm that at their regularly scheduled meeting on February 27, 1997 the North Andover Board of Health granted a variance to Section 4.18 of the North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage to allow the leach area to be installed 51 feet from wetlands. This variance was allowed due to the long history of this lot with previous approvals and the fact that additional distance to groundwater has been afforded with a five foot to groundwater design in soils with a slow percolation rate. A variance to Section 2.23 of the local regulations was also granted to allow 2 feet between the primary and reserve areas. If you have any questions, please call the office at the number below. Sincerely, Sandra Starr, R.S. Health Administrator Cc: Peter Breen Neve Assoc., Inc. File BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 HEALTH 688-9540 PLANNING 688-9535