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Home My WebLink AboutSoil Testing Results - 15 LONG PASTURE ROAD 9/20/1996 Town of North Andover, Massachusetts Form No.a of 0ORTH BOARD OF HEALTH a O L � A P DESIGN APPROVAL FOR 'SSA�N�SES� SOIL ABSORPTION SEWAGE DISPOSAL SYSTEM Applicant owdrw Test No. Site Location wr 4 • Reference Plans and Specs. /f _ ENGINEER DESIGN DA Permission is granted for an individual soil absorption sewage disposal systerrf to be ins tilled in accordance with regulations of Board of Health. "—,-A CHAIRMAN,BOARD OF HEALTH : Fee _ Site System Permit No. �� CHRISTIANSEN SERGI, INC. PROFESSIONAL [ENGINEERS AND I AND SURVEYORS G;: ilh7FR STW((1 —A\lL9@°916..1_, MAS(0wP6l➢S='9°"'i C '] 131 (5 8). 7E 0310 AX: (508) 377.1960 TO : Ms . Sandra Starr Board of Health North Andover RE : Septic System Design Plans Ili,° /"` l,, n�r a✓, a Date : Attached are plans for This design is a new submittal a revision with the following changes SEPTIC PLAN SUBMITTALS LOCATION: `O NEW PLANS: YES $60.00/Plan REVISED PLANS: YES $25.00/Plan ATE: 1 DESIGN ENGINEER: When the submission is all in place, route to the Health Secretary SEPTIC PLAN SUBMITTALS LOCATION: l)T " -. NEW PLANS: YES $60.00/Plan REVISED PL YE� $25.00/Plan DATE: � � I DESIGN ENGINEER: When the submission is all in place, route to the Health Secretary x " NORTH ANDOVER BOARD OF HEALTH DESIGN REVIEW REPORT FEE PERMIT �_. DATE RECEIVED l r y APPLICANT �-�x�J�:�s !_s�rrr�s �s�, ;)d�./°� MAP PARCEL ADDRESS LOT # 2� °°, ENG. STREET - � `" i""" ADDRESS PLAN DATE REV. DATE CONDITIONS OF APPROVAL APPROVED DISAPPROVED REASONS FOR DISAPPROVAL: zo / � 1 - a u a / � l Town of Nerllh A n to`or o 7M /01 o �,y OFFICE OF d_,- ° ya O� 1 CO �,I IU Y V Vi i C�r T a: D SERVICES O t4 146 Main S ircf t �`- i`Ior'di Andovri MassachuseUs 01845 WILLIAM J. SCOTT �sacHU51' Director October 1, 1996 Christiansen & Sergi 160 Summer Street Haverhill, NfA 01830 Lots 7 & 8 Long Pasture Dear Phil: This is to inform you that the proposed plans for the site referenced above have been disapproved for the following reasons: 1. Lot 7 -No peres. 2. Lot 8 - Inadequate and out of date peres. 3. No further review. If you have any questions, please do not hesitate to call the Board of Health Office at the number below. Sincerely, Sandra Starr, R.S. Health Administrator BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 HEALTH 688-9540 PLANNING 688-9535 CHRISTIANSEN G I, INC. PROFESSIONAL ENGlNl.:k-RS AND LAND SURVEYORS 1,60 SUMMER STREET 1-1AVF E�W .. w .... �Ml..V.., KV1FlS`EAt`;HIESE:,TfS 01830 (• TO; Ms . Sandra Starr Board of Health North Andover RE : Septic System Design Plans Date : -/ a Attached are plans for :✓ Cl This design is ; a new submittal a revision with the following changes CS I, INC. PROFESSIONAL SIC'}NAL ENGINECRS AND LAND SURVEYORS ].GEC)SUNIPv1ER STREET I-IAWURHILL, MAS4iACk°gLNSE R'S 01.830 (�08)373.0310 FAX: (508) 372 3960 October 10, 1996 Ms . Sandra Starr North Andover Board of Health 146 Main St . r North Andover, MA 01845 , RE : Lots 7 and 8, Long Pasture Dear Ms . Starr: Thank you for your October 1, 1996 commends regarding the septic systems designs for the above referenced lots . I have the following responses to your reasons for denial . There are two passing perc tests on Lot 7 . Perc tests 31 and 32 were performed on July 15, 1987 by Christiansen & Sergi, Inc . The tests were witnessed by Health Agent Michael Graf . The pert rates for both were recorded as less than 2 minutes per inch. Although the locations of the tests were indicated on the plans that were submitted to you, the test results were inadvertently left off . These test results have been added to the plan. When Soil Evaluator Daniel O' Connell performed the test pits on this lot on May 23 , 1996 , he determined that the location of the proposed leaching facility should be located in an area on the lot closer to Forest Street from where the perc tests were performed. For this reason, the proposed leaching facility and reserve area are located from 40 to 50 feet from the locations of Perc tests 31 and 32 . The test pit results indicated that the soils in this area are consistent in that they have a very rapid permeability, and a field assumption was made by you and Daniel O' Connell that the perc rate would be less than 2 minutes per inch. It was obvious that the perc rate of the soils would not be greater than five minutes per inch, which is the fastest effluent loading design rate listed in Title 5 . Since the 2 minutes per inch rate requires a five foot vertical separation from groundwater, the use of this rate for design purposes results in additional protection of the groundwater. There are two passing perc tests located on Lot 8 . Perc test 1 and 2 were performed on June 22 , 1987 by Christiansen & Sergi, Inc . The tests were witnessed by Health Agent Michael Graf . The perc rates for both tests were recorded as 3 minutes per inch. When Soil Evaluator, Daniel O' Connell performed test pits on this lot on May 23 , 1996, he determined that the location of the proposed leaching facility should be located further back onto the lot from Starr, October 10, 1996 page 2 where the perc tests were performed. The test pits were dug in locations that would minimize the amount of fill that would be required between the proposed house and the leaching facility. The configuration currently proposed would also allow for the construction of the reserve area without the necessity of a reinforced concrete retaining wall along Forest 'Street, which would be required if the locations of the leaching area and reserve area were shifted so that Perc test 2 would lie within the reserve area. This could save the future homeowners a substantial amount of money at a time when they will already face severe economic hardship. i Perc Test 1 lies within the proposed reserve area and is approximately 30 feet from the proposed leaching field. Perc Test 2 lies approximately 40 feet from the reserve area. The test pit results indicated that the soils in this area are consistent in that they have a very rapid permeability, and a field assumption was made by you and Daniel O'Connell that the perc rate would be less than 2 minutes per inch. It was obvious that the perc rate of the soils would not be greater than five minutes per inch, which is the fastest effluent Loading design rate listed in Title ;5 . Since the 2 minutes per inch rate requires a five foot vertical effluent separation from the groundwater, the use of this rate for design purposes results in additional protection of the groundwater than if the ,previously measured rate of 3 minutes per inch was used. It should be noted that the septic system designs for these two lots were completed before the recent decision by the Board of Health to allow for a minimum design flow of 440 gallons per day for a single family home . Given that the proposed leaching fields on the two lots consist of the minimum size of 900 square feet of leaching area as required by local regulations, the sizes of the fields cannot be reduced. This being the case, the two septic systems would be adequately sized for any percolation _rate ,up to and including 20 minutes per inch. (440 gallons per day/0 .53 gallons per day per square foot = a required leaching area of 830 square feet) . Since it is clear from the soil characteristics found in the test pits that it would not be possible to obtain a percolation rate in excess of 20 minutes per inch in a properly executed test, no further testing is warranted. The factor of safety of 10 regarding the perc rate and its effect on the size of the proposed leaching area, coupled with the five foot vertical separation to groundwater because of the 2 minutes per inch perc rate assumption, will result in the construction of leaching facilities that meet or exceed all state and local requirements . Starr, October 10, 1996 page ,3 Regarding you comment that the perc tests performed on Lot 8 are "out of date" , we are unaware of any regulation that would deem the perc tests to be expired. Although the North Andover regulations state that "the Board of Health representative may require the area previously tested to be reperced if there is some question as to the results or location of previous tests", the plans of record and soils test results that were submitted to the Town of North Andover with the Definitive Subdivision Plan and the Notice of Intent in 1987, clearly document the locations and results of the tests . In summation, performing additional perc tests on these two lots will have no effect on the designs of the septic systems, will have no additional benefits towards the protection of the public health, and would be a considerable waste of time and/or money for the Board of health, the engineer and the applicant . The owner of this property negotiated in good faith with the Town of ,North Andover to settle litigation. It was expected that use of old percolation tests would not be a problem. You and Daniel O'Connell also did new ,test pits on this property in 1996 to complement testing done in 1987 and 1991 . A final day of perc testing is scheduled for October 17, 1996 . I hope the testing can be resolved on October 17, 1996 so that the design work can proceed. Please contact me if you have questions or comments regarding this matter. Very truly yours- Phi 'p G. Christiansen PGC;lc cc : William Scott Ralph Joyce Ren Crete PROF"ESSIONAL ENUNEERS AND LAND SURVEYORS 7.60 S4.IMMEwR DIREL`l" HAVEaFOUL, MA`ESC';Hl.dSE.G.1°;0130 (50E0373-0310 FAk (508)3 November 6, 1996 Ms. Sandra Starr , North Andover Board of Health 1.46 Main Street North.Andover MA 0184.5 Re: Lots 7 and 8 Long Pasture Dear Ms. Starr: Thank you for your recent comments on the septic system designs for the alcove referenced locations. I have the following responses to your reasons for disapproval: 1. The results and locations of the pert tests that were performed on 10/17/96 have been added to the plans. 2. The proposed leaching facilties have been changed from fields to trenches. Enclosed are three sets of the revised plans for your review. Please contact me if you have any questions regarding these designs. j*Iu sen . SEPTIC PLAN SUBMITTALS LOCATION: NEW PLANS: YES $60.00/Plan REVISED PLAN YES $25.00/Plan N(-- DATE: DESIGN ENGINEER: When the submission is all in place, route to the Health Secretary SEPTIC PLAN SUBMITTALS LOCATION: NEW PLANS: YES $60.00/Plan REVISED PLANS: ` S $25.00/Plan DATE: '3— jr) -0't DESIGN ENGINEER: When the submission is all in place, route to the Health Secretary PLAN REVIEW CHECKLIST" ADDRESS—,/, 7 ENGINEER s.w .. —GENERAL 3 COPIES !,,,�-,� STAMP G.,,, LOCUS f ..., .... . ...... NORTH ARROW SCALE-- CONTOURS «.�,'" PROFILE t °" SECTION BENCHMARK - ' SOIL & WETS. DISCLAIMER WELLS & WETS _ PERCS ELEVATIONS WATERSHED? DRIVEWAY (Elev) WATER LINES"" FDN DRAIN ' SOIL EVAL J., SCH40 �°�� TESTS CURRENT? +�.�"��- 7 �'7 �c��A)l��.- SEPTIC TANK MIN 15006 & � . 17 INVERT DROP ` GARB. GRINDER D (2 comps +200) 10 ' TO FDN �"-'°" MANHOLEI.� „, ELEV ` GW c..,-"° # COMPS . GB R-BOX SIZE # LINES FIRST 2 ' LEVEL STATEMENT INLET �.a .” � OUTLETS`� /w = . (2" OR . 17 FT) TEE REQ'D? �+�) LEACHING MIN 440 GPD? '"` RESERVE AREA 4 ' FROM PRIMARY? Ay2 a ..LOPE; 100 ' TO WETLANDS 100 ' TO WELLS '"" 4 ' TO S .H.GW 20 ' TO FND & INTRCPTR DRAINS 400 ' TO SURFACE H2O SUPP 4 ' PERM. SOIL BELOW FACILITY MIN 1211 COVER '""" FILL? BREAKOUT MET? ° TRENCHES MIN 440 gpd SLOPE (min . 005 or 6 11/100 ' ) SIDEWALL DIST. 3X EFF. WORD (MINE ' ) RESERVE BETWEEN TRENCHES? " " IN FILL? MUST t� " BE 10 ' MIN. lO 4" PEA STONE? .""VENT? (>3 ' COVER; LINES >501 ) BOT _ + SIDE DxLx2x X LDNG(G%t2)' TOT ` r (L x W x #) ( #) Copyright d 1996 by S.L. Starr / ' PITS MIN 440 LEACHING— MIN I (13 'x16 ' ) PIT— MANHOLE/PIT_ GW MIN 4 ' BELOW BOTTOM— EXC 2x EFF W OR D— 12"-48" STONE_ BOT + SIDE x LOAD 7f— = TOTAL x W x #) (L+W)xD x TG/ t2) —M AMBERS MIN 440 LEACHING— GW MIN 4" BELOW— COVER >3 FT ® VENT_ MANHOLES— 1211-48" STONE— SPLASH PADS— SLOPE . 005 BED/TRENCH_(Bed max. 60 ' X 601 ) MIN 131 X 161 PIT_ BOT + SIDE— X LOAD—= TOTAL (L x W x #) (2 x (L+W)xD x #) (G/ft2) FIELDS MIN 440 GPD 900 ft2 BED GW MIN 4 ' BELOW BOTTOM OF FIELD PIPE ENDS JOINED? 411 PEA STONE? 6-- DIST LINE SLOPE .005? >3 COVER-VENT SCH 40 MIN 1211 COVER RATE , X TOTAL X L ')W LDG DOSING TANKS AND PUMPS DIMENSIONS X X PUMP CAPACITY gpm —W D –Vol . DISCHARGE SIZE DISCHARGE RATE DISCHARGE TIME gpi'a MANHOLES TO GRADE ALARM SEP. CIRC. GW_(Min. 11 below inlet) HWL— LWL CHECK VALVE BLEEDER HOLE MANUAL OP. SWITCH— ENUF STORAGE?— TDH WEIGHTED?_ Copyright 0 1996 by S.L. Starr Town of North Andover LL4,1 OFFICE OF C® ITT DEVEL®P' ENT SERVICES 30 School Street North Andover,Massachusetts 01845 WILLIAM J. SCOTT Director May 28, 1997 Ms. Robin Barclay 425 Forest Street North Andover, MA 01845 Dear Ms. Barclay: As an update on the status of Long Pasture Subdivision, please be advised that the following lots have approved septic plans: Lot#1A, Lot#7, and Lot #8. If you have any questions, please do not hesitate to call the Board of Health Office at the number below. Sincerely, Sandra Starr, R.S., Health Administrator SS/cjp cc: Wm. Scott, Director, P&CD Planning Board File CONSERVATTnN 6RR-9530 14FA?.TT3 698-9W "T,ANNTNG 699-9535