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HomeMy WebLinkAboutHealth Permit # 3/6/2002 I APPLICATION FOR DISPOSAL WORKS CONSTRUCTION PERMIT DATE: CURRENT INSTALLER'S LICENSE" LOCATION: LICENSED INSTALLER: - y t, 6 SIGNATURE: f f r w._a._ TELEPHOINE# A r CHECK ONE: REPAIR: NEW CONSTRUCTION: IF NEW CONSTUCTION, PLEASE ATTACH FOUNDATION AS—BUILT. ION 44 4 N ,I`FH BO T i Adm fnistrative Use Only G „ :. 575.00 Fee Attached? Yes ° No i Foundation As-Built? Yes No Floor Plans? Yes No 1 Approval .,.,, - n, , ..., Date: P I INSTALLER PROJECT MANAGEMENT OBLIGATIONS As the North Andover licensed installer for the construction of the septic system for the property at y �� , _.�-("" "I`� relative to the application of . €'' 'dated for plans by „ " m and dated ���� "� ,�i with revisions dated 9 / I understand the following obligations for management of this project: 1. As the installer I am obligated to obtain all permits and Board of Health approved plans prior to performing any work on a site. I must have the approved plans and the permit on site when any work is being done. 2. As the installer I must call for any and all inspections. If homeowner, contractor, project manger, or any other person not associated with my company schedules an inspection and the system is not ready then item three shall be applicable. 3. As the installer I am required to have the necessary work completed prior to the applicable inspections as indicated below. I understand that requesting an inspection, without completion of the items in accordance with Tile 5 and the Board of Health Regulations may result in a$50.00 fine being levied against my company. a) Bottom of Bed - generally first inspection unless there is a retaining wall which should be done first. Installer must request the inspection but does not have to be present. b) Final inspection — Engineer must first do their inspection for elevations, ties, etc. As-built or verbal OK from engineer must be submitted to Board of Health, after which installer calls for inspection time. Installer must be present for this inspection. With pump system all electrical work must be ready and able to cause pump to work and alarm to function. c) Final Grade-Installer must request inspection when all grading is complete. Does not have to be on site. 4. As the installer I understand that only I may perform the work(other than simple excavation) required to complete the installation of the system identified in the attached application for installation. I further understand that work by others unlicensed to install septic systems in North Andover can constitute reasons for denial of the system, and/or revocation or suspension of my license to operate in the Town of North Andover; significant fines to all persons involved are also possible. 5. As the Installer I understand that I must be on site during the performance of the following construction steps: a) Determination that the proper elevation of the excavation has been reached. b) Inspection of the sand and stone to be used. c) Final inspection by Board of Health staff or consultant. d) Installation of tank, D-box, pipes, stone, vent, pump chamber, retaining wall and other components, 6. As the installer I understand that I am solely responsible for the installation of the system as per the approved plans. No instructions by the homeowner, general contractor, or any other persons shall absolve me of this obligation. Undersigned Licensed Septic Installer � - Date: 3 Disposal Works Construction Permit# G� : � z /X an Town of North Andover, Massachusetts Form No.2 0'."°;��,4 BOARD OF HEALTH DESIGN APPROVAL FOR SAGHUSEt SOIL ABSORPTION SEWAGE DISPOSAL SYSTEM Applicant 9 . Test No- Site location c� Reference Plans and Specs. r' ENGINEER el�' DESIGN DATEr P,elmisson is granted for an Individual soil absorption sewage disposal system to.b'e in accordance with regulations of Board of Health. ' installed CHAIRMAN,BOARD OF HEALTH, Fee�� Site System Rermii-No *7� Al p Town of North Andover A0R7y =O`�IED y6 A�OL Office of the Health Department Community Development and Services Division 27 Charles Street North Andover, Massachusetts 01845 ��SSACHUSE��� Sandra Starr Telephone (978)688-9540 Health Director Fax(978)688-9542 August 2, 2001 David Oberlander BDO Engineering 47A Wilson Place Mansfield, MA 02048 Re: 544 Foster Street Dear David: This is to notify you that the revised proposed septic system plans dated July 9, 2001 for the repair of 544 Foster Street have been approved by the North Andover Board of Health once the DEP approves the plans. If you have any questions, please do not hesitate to call the Board of Health Office at 978-688-9540. Sincerely, Sandra Starr, R.S., C.H.O. Health Director SS/smc cc: Homeowner's Advantage Real Estate File BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 NURSE 688-9543 PLANNING 688-9535 If 1 i" 11L)I4DV1116 01auIGIV (OU.SMI(flM OPFRA[06, WIR WA"xUMAMD?°0,44WAW �Jffl SflAr< ENGINEERING 47-A Wilson Place, Mansfield, MA 02048-2512 Tel: 508-339-0806 Fax: 508-337-9440•e-snail:hdoeag @ichiet July 10, 2001 I Ms. Sandra Starr, R.S., C.H.O., Health Director Town of North Andover Community Development& Services 27 Charles Street North Andover, MA 01845 .. tel. 978-688-9540,fax 978-688-9542 RE: DEP REVIEW OF PLAN FOR SEPTIC REPAIR PLAN AT 544 FOSTER STREET Dear Ms. Starr: We have received review comments from the Northeast Office of DEP for our septic system repair at 544 Foster Street. The review did not result in any significant changes. The following two clarifications were completed: 1. Our details and specifications were designed around the Bio-Microbics MicroFAST 0.5 system. We edited our notes to clarify the appropriate model. 2. Since this system does not require a distribution box, we removed the distribution box specification from our general notes. We also Submitted a letter to DEP that authorizes us to sign for the applicant on Title 5 issues. These clarifications do not affect any previous Board of Health or Conservation Commission concerns. We have enclosed three revised plans (latest revision July 9, 2001) for your records. Please let us know if you need an additional fee for this submittal. If you have any questions or require additional information,please call me at 508-339-0806. Thank you for your attention. Sincerely, DO ENGINEERING 1 "4t( David Oberlander, P.E. Civil/Environmental Engineer cc: Mr. Brian LaGrasse North Andover Conservation Commission 27 Charles Street North Andover,MA 01845 tel. 978-688-9530, fax 978-688-9542 with copies of plan DEP Northeast Owner nandboh10 -7- NANNING 01ST IV (0119'RUMON 0111RA11ONS• YAUR WASIEW TIRE,PRAINAGE C[171(, Sift' E N G I N E E R I N G 47-A Wilson Plaw, Maiisfield, MA 02048-2512 Tel: 508-339-0806 Fax: 508-337-9440, e-inail: hdoengMi.iiet April 27, 2001 Ms. Sandra Starr, R.S., C.H.O., Health Director Town of North Andover Community Development& Services 27 Charles Street North Andover, MA 01845 tel. 978-688-9540, fax 978-688-9542 RE:PLAN REVISIONS FOR SEPTIC REPAIR PLAN AT 544 FOSTER STREET Dear Ms. Starr: As requested by your office last Friday we are submitting a $60 check to cover your review of the revised septic system plan for 544 Foster Street. We have also enclosed three revised plans (latest revision April 26, 2001). We moved the septic tank and pump chamber to the front of the house to increase the separation from the wetlands. Please disregard the previous plans submitted April 16, 2001. We have also enclosed a revised buoyancy calculation and a revised system curve calculation for your records. If you have any questions or require additional information, please call me at 508-339-0806. Thank you for your attention. Sincerely, BDO ENGINEERING 'P 1�—1 K�11114" David Oberlander, P.E. Civil/Environmental Engineer cc: Owner nandboh09 Town of North Andover F NORTH Office of the Health Department Community Development and Services Division 27 Charles Street :,''`"* North Andover, Massachusetts 01845 �SSACHUSE'�y Sandra Starr Telephone(978)688-9540 Health Director Fax (978)688-9542 June 4, 2001 David Oberlander BDO Engineering 47A Wilson Place Mansfield, MA 02048 Re: 544 Foster Street Dear David: This is to notify you that the plans dated April 26, 2001 will be approved depending upon DEP approval. On February 22, 2001 at our regular meeting, the Board of Health granted a variance to 310 CMR 15.140 to allow a sieve analysis to determine LTAR. This must also receive DEP approval. Local variances that were granted are as follows: • NA 5.02 distances— 1. 50' to wetlands instead of 100' for leach area 2. 25' to wetlands instead of 75' for septic tank • NA 9.04—no reserve area If you have any questions, please do not hesitate to call the Board of Health Office at 978-688-9540. Sincerely, Sandra Starr, R.S., C.H.O. Health Director S S/smc cc: Homeowner's Advantage Real Estate File BOARD OF.APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 NURSE 688-9543 PLANNING 688-9535 March 14,2001---Page 2 VARIANCES GRANTED FOR 544 FOSTER STREET,NORTH ANDOVER 1. Title 5: 310 CMR 15.140--Percolation Test: Use sieve analysis and soil evaluation to determine the LTAR 2. Title 5: 310 CMR 15, Innovative/Alternative Technologies, Single Home FAST Remedial Use Approval, Section I.A. Reduced Soil Absorption System: Allow the 50% reduction in the area of the soil absorption system. Other DEP IIA technologies such ors Bioclere could be substituted in the event the FAST permit had expired. 3. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part B, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce the leaching facility setback from wetland from 100-feet to 50-feet as allowed by Title 5. 4. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part B, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce the septic tank setback from wetland from 75-feet to 25-feet as allowed by Title 5. 5. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part C Design, 9.04 Reserve Area: Waive the requirement to show a reserve area. 544 Foster Street 04/29/01 North Andover, MA PRESDNET.XLS Pressure Distribution Network DESIGN FLOW GPM GPH GPD 0.3 18 440 24 hour day LEACH FIELD SIZE PER PREVIOUS CALCULATIONS Number of Leaching Lines 6 Length of Leaching Lines 41 feet Select Lateral Length 20.5 feet Select Perforation Size 0.375 inches Select Perforation Spacing 4 feet Use Figures for Lateral Diameter 1 inches Select Distil In-line Pressure 2.5 feet Calc. Perforation Discharge Rate 2.62 gpm Perforations per Lateral 5 perforations Lateral Discharge Rate 13 gpm Select Manifold Diameter(Table 2) 3 inches Number of Laterals 12 laterals Network Volume(no manifold) 1.3 cubic feet= 10 gallons Select Manifold Length 30 feet Manifold Volume 1.5 cubic feet= 11 gallons Total Flow Back Volume 3 cubic feet= 21 gallons DOSING TANK AND PUMP DATA Calculate Range for Min. Dose 7 cubic feet= 50 gallons through 13 cubic feet= 100 gallons Select Dosing Frequency 1 per day=every 24 hours Calculate Volume of Dose 440 gallons okay Select Extra Volume as%of ADF 100% or 24 hours Select Length of Dosing Tank 7.5 feet Select Width of Dosing Tank 4.67 feet Required Depth for dosing and sto 3.4 feet Required Depth for storage 1.8 feet Required Depth for Dosing 1.8 feet Flow Rate for Pump= 157 gpm Required Sump for Pump= 0.63 feet check w/manufacturer Invert of influent sewer= 127.03 feet. Calc. Bottom of Wet Well Elevation= 122.78 feet per Scituate-Ray Precast Select Maximum Water Level(emergency stora€ 127.09 feet Select High Water Alarm Elevation= 125.29 feet Set Pump On Elevation= 125.21 feet Calc. Pump Off Elevation= 123.41 feet CALCULATION OF SYSTEM CURVE Invert of Leaching Pipes= 127.54 feet Hazen Williams C value= 150 Forcemain Length= 29 feet Forcemain Diameter= 3 inches Number of short radius 90 bends,k value= 3 0.9 Number of reducers,k value= 0 0.8 Number of reducers, k value= 0 0.8 Number of short radius 111/4 bends,k value= 1 0.4 Number of Tees(side outlet),k value= 1 1.8 Number of swing check valves, k value= 1 2.5 Number of gate valves(open), k value= 1 0.20 Entrance loss k value(submersible pump)= 0.04 Exit loss k value(atmosphere)= 1.0 Total of k values= 8.64 FLOW STATIC VELOCITY HEAD LOSSES TDH RATE HEAD FRICTION VELOCITY MINOR NETWORK* m feet fps feet feet feet feet feet 0 4.14 0.00 0.0 0.0 0.0 3.3 7 31 4.14 1.43 0.1 0.0 0.3 3.3 8 63 4.14 2.86 0.3 0.1 1.1 3.3 9 94 4.14 4.28 0.6 0.3 2.5 3.3 11 126 1 4.14 5.71 1.0 0.5 4.4 3.3 13 desi n flow 157 4.14 7.14 1.6 1 0.8 6.8 3.3 17 189 4.14 8.57 2.2 1.1 9.8 3.3 21 220 4.14 10.00 2.9 1.6 13.4 3.3 25 252 4.14 11.42 3.8 2.0 17.5 3.3 31 *Assumes network losses equal 1.31*the distal pressure selected(per DEP guidance). 04/29/2001 FILE:BUOYNorthAndover BUOYANCY CALCULATION FOR 1,500 GALLON REINFORCED CONCRETE TANK: The following parameters were used in the calculations: WEIGHT OF CONCRETE= 150 pounds per cubic foot WEIGHT OF SOIL= 120 pounds per cubic foot WEIGHT OF WATER= 62.4 pounds per cubic foot FINISHED GRADE ELEVATION AT TANK= 129.5 feet TOP OF TANK ELEV(exterior)= 128.7 feet EXTERIOR HEIGHT OF TANK 6 feet ESTIMATED HIGH GROUNDWATER ELEV.= 123.0 feet SELECT MINIMUM SAFETY FACTOR= 1.00 high groundwater estimate provides safety factor MANUFACTURER= Scituate Ray Precast,800-440-0009 1,500 gallon Single Home Fast Tank LENGTH WIDTH THICKNESS VOLUME WEIGHT feet feel inches cubic feet pounds TOP SLAB 10.42 5.67 8 39 5,903 BOTTOM SLAB 10.42 5.67 3 15 2,214 TWO SIDE WALLS 10.42 5.08 3 26 3,971 TWO END WALLS 5.17 5.08 3 13 1,970 COMPARTMENT WALL 4.42 5.08 6 11 1,684 FAST Insert and Media 600 TOTAL TANK 105 16,341 downward feet SOIL ABOVE TANK AND HIGH GRNDWATEF 10.42 5.67 0.8 47 5,667 downward SOIL ABOVE TANK BUT BELOW HIGH GW 10.42 5.67 0 0 - downward BOTTOM OF TANK ELEVATION(exterior) 122.7 feet VOLUME OF WATER DISPLACED 18 cubic feet WEIGHT OF WATER DISPLACED 1,105 pounds upward UPLIFT FORCE= 1,105 pounds DOWNWARD FORCE(EMPTY) 22,008 pounds SAFETY FACTOR 19.9 OKAY TRY COLLAR 0 INCH WIDE ANTI-FLOTATION COLLAR 10.4167 5.6666667 0 0 - SOIL ABOVE COLLAR AND HIGH GRNDWATER 0 0 downward SOIL ABOVE COLLAR BUT BELOW HIGH GW 0.3 0 downward UPLIFT FORCE= 1,105 pounds DOWNWARD FORCE(EMPTY) 22,008 pounds SAFETY FACTOR 19.9 OKAY BUOYANCY CALCULATION FOR 1,000 GALLON PUMP CHAMBER: The following parameters were used in the calculations: WEIGHT OF CONCRETE= 150 pounds per cubic fool WEIGHT OF SOIL= 120 pounds per cubic foot WEIGHT OF WATER= 62.4 pounds per cubic foot FINISHED GRADE ELEVATION AT TANK= 129.4 feet TOP OF TANK ELEV(exterior)= 127.9 feet EXTERIOR HEIGHT OF TANK 5.4 feet ESTIMATED HIGH GROUNDWATER ELEV.= 123.0 feet SELECT MINIMUM SAFETY FACTOR= 1.00 high groundwater estimate provides safety factor MANUFACTURER= Scituate Ray Precast,800-440-0009 1,000 gallon Septic Tank LENGTH WIDTH THICKNESS VOLUME WEIGHT feet feet inches cubic feet pounds TOP SLAB 8.00 5.17 4 14 2,067 BOTTOM SLAB 8.00 5.17 3 10 1,550 TWO SIDE WALLS 8.00 4.83 3 19 2,900 TWO END WALLS 4.67 4.83 3 11 1,692 COMPARTMENT WALL 0.00 4.83 0 0 - PUMP 50 TOTAL TANK 55 8,258 downward feet SOIL ABOVE TANK AND HIGH GRNDWATEF 8.00 5.17 1.5 62 7,440 downward SOIL ABOVE TANK BUT BELOW HIGH GW 8.00 5.17 0.0 0 - downward BOTTOM OF TANK ELEVATION(exterior) 122.5 feet VOLUME OF WATER DISPLACED 12 cubic feet WEIGHT OF WATER DISPLACED 774 pounds upward UPLIFT FORCE= 774 pounds DOWNWARD FORCE(EMPTY) 15,698 pounds SAFETY FACTOR 20.3 OKAY TRY COLLAR 0 INCH WIDE ANTI-FLOTATION COLLAR 10.4167 5.6666667 0 0 - SOIL ABOVE COLLAR AND HIGH GRNDWATER 0 0 downward SOIL ABOVE COLLAR BUT BELOW HIGH GW 0.3 0 downward UPLIFT FORCE= 774 pounds DOWNWARD FORCE(EMPTY) 15,698 pounds SAFETY FACTOR 203 OKAY PIAWWING-IMSIGN (&NTR000W I 8111YA0ONN, WAR� NABINAIIl?-DRA0NAGE,SlYD[,0f EK]G| K] EER|KJG 47-A WUmnPkxv Mansfield, MA0Y088'Y5]y^Tel: 508-339-0806 . Fax: 508-337-9440. e-mail: April 16, 2001 Ma, Sandra Starr, R.8., C.11.O, Health Director Town of North Andover Community Development& 8umicex 2? Charles Street North Andover, YW/\ 01845 tel. 978-6X8'g54O, fax 978-G88-9542 | � RE-PLAN REVISIONS FOR SEPTIC REPAIR PLAN AT544 FOSTER STREET Dear Ms. Starr: Thank you for your thorough review of our septic system repair plan for 544 Foster Street, Euo\oand p|e000 find throe copies of the revised y1oo as well as the additional calculations requested. The iterns below describe the changes made to address your review comments: l. The system profi|ehas been redrawn otu scale of%-iuoh= l-foot. J. Both the observed and adjusted groundwater elevations have been added io the revised prnfilo. 3. The revised profile abop/a a6-iuuh layer of9/4"-inuhcrushed stone under both the septic tank � and pump chamber. 4. /\copy of the pump performance curve ix attached to this letter. 5. 8co Pumping Equipment, Note which mycxifimxthat the pump must pass uooiuimonu of 1-/4- inch solids. 0. Emergency storage and dosing volume calculations are aUuobod. Ample volume exists for flow back. ?. See Pumping Equipment,Note 3 vvbiob specifies unounuu] operating ap/kob (i.e. Hand-Off-Auto o`vhob). 8. Buoyancy calculations foi-the septic tank and pump chamber are attached. ltcoot our revisions and attachments satisfy your review comments. If you have any questions or � require additional information,please call 000a1508-339-O800. Thank you for your attention. Sincerely, ,.71NEFRING ^ - David Oberlander, P.E. C1viKBuvinoumcutu| Engineer cc: Owner _ WEIL 244� SubmersiblE Sewage I 2613 Removal Syster i iD 1/2 LIFTING HANDLE i 14 3/4 YOKE rYpKE —�— - j 3 3/4 - - 3 INCH DISCHARGE TOTAL HEAD CURVE NCB. .Q S.G. PUMP SIZE: 3 X 7 MTR PSI FT W141.007.002175�✓(� RPM ' 70° F IMPELLER: P-3101 V2 IMP. TYPE: OPEN i 18 26 60 MAX. DIA.: 7 17 24 55 MAX. SPHERE: 2.5 j 15 22 50 14 19 45 12 17 40 11 15 35 9 13 30 6 6 11 25 55® 6 9 20 525 5 6 15 2 HP 3 4 10 2 2 5 1 1/2 .75 HP t HP HIP PR �UTE � E 0 30 60 90 120 150 180 210 240 270 300 CUBIC 1 U � 0 7 14 21 27 34 41 47 54 61 68 PER :1 a�rr ►ioua F W101.561.03 H1002 R10581 W141 007 00' SEWAGE -2400 311 SEWAGE P RA® JANUARY 1, 199E 2414 1 2613 Removal System 1V�1 WEII 544 Foster Street 04/16/01 North Andover,MA PRESDNET.XLS Pressure Distribution Network DESIGN FLOW GPM GPH GPD 0.3 18 440 24 hour day LEACH FIELD SIZE PER PREVIOUS CALCULATIONS Number of Leaching Lines 6 Length of Leaching Lines 41 feet Select Lateral Length 20.5 feet Select Perforation Size 0.375 inches Select Perforation Spacing 4 feet Use Figures for Lateral Diameter 1 inches Select Distil In-line Pressure 2.5 feet Calc. Perforation Discharge Rate 2.62 gpm Perforations per Lateral 5 perforations Lateral Discharge Rate 13 gpm Select Manifold Diameter(Table 2) 3 inches Number of Laterals 12 laterals Network Volume(no manifold) 1.3 cubic feet= 10 gallons Select Manifold Length 30 feet Manifold Volume 1.5 cubic feet= 11 gallons Total Flow Back Volume 3 cubic feet= 21 gallons DOSING TANK AND PUMP DATA Calculate Range for Min. Dose 7 cubic feet= 50 gallons through 13 cubic feet= 100 gallons Select Dosing Frequency 1 per day=every 24 hours Calculate Volume of Dose 440 gallons okay Select Extra Volume as%of ADF 100% or 24 hours Select Length of Dosing Tank 7.5 feet Select Width of Dosing Tank 4.67 feet Required Depth for dosing and sto 3.4 feet Required Depth for storage 1.8 feet Required Depth for Dosing 1.8 feet Flow Rate for Pump= 157 gpm Required Sump for Pump= 0.63 feet check w/manufacturer Invert of influent sewer= 124.63 feet. Calc.Bottom of Wet Well Elevation= 120.38 feet per Scituate-Ray Precast Select Maximum Water Level(emergency storaE 124.69 feet Select High Water Alarm Elevation= 122.89 feet Set Pump On Elevation= 122.81 feet Calc. Pump Off Elevation= 121.01 feet CALCULATION OF SYSTEM CURVE Invert of Leaching Pipes= 127.54 feet Hazen Williams C value= 150 Forcemain Length= 52 feet Forcemain Diameter= 3 inches Number of short radius 90 bends, k value= 3 0.9 Number of reducers, k value= 0 0.8 Number of reducers, k value= 0 0.8 Number of short radius 11-1/4 bends,k value- 1 0.4 Number of Tees(side outlet), k value= 1 1.8 Number of swing check valves, k value= 1 2.5 Number of gate valves(open), k value= 1 0.20 Entrance loss k value(submersible pump)= 0.04 Exit loss k value(atmosphere)= 1.0 Total of k values= 8.64 FLOW STATIC VELOCITY HEAD LOSSES TDH RATE HEAD FRICTION VELOCITY MINOR NETWORK* m feet fps feet feet feet feet feet 0 6.54 0.00 0.0 0.0 0.0 3.3 10 31 6.54 1.43 0.1 0.0 0.3 3.3 10 63 6.54 2.86 0.5 0.1 1.1 3.3 12 94 6.54 4.28 1.1 0.3 2.5 3.3 14 126 6.54 5.71 1.9 0.5 4.4 3.3 17 [design flow 157 6.54 7.14 2.8 0.8 6.8 3.3 20 189 6.54 8.57 4.0 1.1 9.8 3.3 25 220 6.54 10.00 5.3 1.6 13.4 3.3 30 252 6.54 11.42 6.7 2.0 17.5 3.3 36 *Assumes network losses equal 1.31*the distal pressure selected(per DEP guidance). 04/16/2001 FILE:BUOYNorthAndover BUOYANCY CALCULATION FOR 1,500 GALLON REINFORCED CONCRETE TANK: The following parameters were used in the calculations: WEIGHT OF CONCRETE= 150 pounds per cubic foot WEIGHT OF SOIL= 120 pounds per cubic foot WEIGHT OF WATER= 62.4 pounds per cubic foot FINISHED GRADE ELEVATION AT TANK= 127.5 feet TOP OF TANK ELEV(exterior)= 126.3 feet EXTERIOR HEIGHT OF TANK 6 feet ESTIMATED HIGH GROUNDWATER ELEV.= 123.0 feet SELECT MINIMUM SAFETY FACTOR= 1.00 high groundwater estimate provides safety factor MANUFACTURER= Scituate Ray Precast,800-440-0009 1,500 gallon Single Home Fast Tank LENGTH WIDTH THICKNESS VOLUME WEIGHT feel feet inches cubic feel pounds TOP SLAB 10.42 5.67 8 39 5,903 BOTTOM SLAB 10.42 5.67 3 15 2,214 TWO SIDE WALLS 10.42 5.08 3 26 3,971 TWO END WALLS 5.17 5.08 3 13 1,970 COMPARTMENT WALL 4.42 5.08 6 11 1,684 FAST Insert and Media 600 TOTAL TANK 105 16,341 downward feet SOIL ABOVE TANK AND HIGH GRNDWATEF 10.42 5.67 1.2 69 8,264 downward SOIL ABOVE TANK BUT BELOW HIGH GW 10.42 5.67 0 0 - downward BOTTOM OF TANK ELEVATION(exterior) 120.3 feet VOLUME OF WATER DISPLACED 354 cubic feet WEIGHT OF WATER DISPLACED 22,100 pounds upward UPLIFT FORCE= 22,100 pounds DOWNWARD FORCE(EMPTY) 24,605 pounds SAFETY FACTOR 1.1 OKAY TRY COLLAR 0 INCH WIDE ANTI-FLOTATION COLLAR 10.4167 5.6666667 0 0 - SOIL ABOVE COLLAR AND HIGH GRNDWATER 0 0 downward SOIL ABOVE COLLAR BUT BELOW HIGH GW 2.66666667 0 downward UPLIFT FORCE= 22,100 pounds DOWNWARD FORCE(EMPTY) 24,605 pounds SAFETY FACTOR 1.1 OKAY BUOYANCY CALCULATION FOR 1,000 GALLON PUMP CHAMBER: The following parameters were used in the calculations: WEIGHT OF CONCRETE= 150 pounds per cubic fool WEIGHT OF SOIL= 120 pounds per cubic foot WEIGHT OF WATER= 62.4 pounds per cubic foot FINISHED GRADE ELEVATION AT TANK= 127.5 feet TOP OF TANK ELEV(exterior)= 125.5 feet EXTERIOR HEIGHT OF TANK 5.4 feet ESTIMATED HIGH GROUNDWATER ELEV.= 123.0 feet SELECT MINIMUM SAFETY FACTOR= 1.00 high groundwater estimate provides safely factor MANUFACTURER= Scituate Ray Precast,800-440-0009 1,000 gallon Septic Tank LENGTH WIDTH THICKNESS VOLUME WEIGHT feet feet inches cubic feet pounds TOP SLAB 8.00 5.17 4 14 2,067 BOTTOM SLAB 8.00 5.17 3 10 1,550 TWO SIDE WALLS 8.00 4.83 3 19 2,900 TWO END WALLS 4.67 4.83 3 11 1,692 COMPARTMENT WALL 0.00 4.83 0 0 - PUMP 50 TOTAL TANK 55 8,258 downward feet SOIL ABOVE TANK AND HIGH GRNDWATEF 8.00 5.17 2.0 81 9,689 downward SOIL ABOVE TANK BUT BELOW HIGH GW 8.00 5.17 0.0 0 - downward BOTTOM OF TANK ELEVATION(exterior) 120.1 feel VOLUME OF WATER DISPLACED 248 cubic feet WEIGHT OF WATER DISPLACED 15,475 pounds upward UPLIFT FORCE= 15,475 pounds DOWNWARD FORCE(EMPTY) 17,947 pounds SAFETY FACTOR 1.2 OKAY TRY COLLAR 0 INCH WIDE ANTI-FLOTATION COLLAR 10.4167 5.6666667 0 0 - SOIL ABOVE COLLAR AND HIGH GRNDWATER 0 0 downward SOIL ABOVE COLLAR BUT BELOW HIGH GW 2.66666667 0 downward UPLIFT FORCE= 15,475 pounds DOWNWARD FORCE(EMPTY) 17,947 pounds SAFETY FACTOR 1.2 OKAY Town of North Andover Of „O"TN �j1.E0 yb•�o Tice ®f the Health Department Community Development and Services Division so e William J.Scott, Division Director 27 Charles Street Sac HusEfi North Andover,Massachusetts 01845 978 688-9540 one Tele h Sandra Starr P ( ) Health Director Fax (978)688-9542 April 4, 2001 David Oberlander BDO Engineering 47-A Wilson Place Mansfield, MA 02048-2512 Re: 544 Foster Street Dear David: This is to inform you that the proposed plans for the site referenced above have been disapproved and have technical deficiencies as followed: • System profile is not shown to scale as required by CMR 15.220(4)(o) and NA 8.02c. • Observed and adjusted groundwater elevation in the vicinity of the system is not shown as required by CMR 15.220(4)(n). • Six inches of 3/4" stone beneath the pump chamber is not specified as required by CMR 15.221(2) and 15.228(1). • Pump performance curve is not provided as required by CMR 220(4)(r). �- • Pump does not specify passing 1-1/4" solids as required by CMR 15.231(7). • Emergency storage and dosing volume calculations do not include flowback as required by CMR 15.231(2). • Manual operating switch for pump is not specified as required by NA 12.01. BOARD OF APPEALS 688-9541 BUILDING 688-9545 CONSERVATION 688-9530 NURSE 688-9543 PLANNING 688-9535 • Buoyancy calculations not shown for septic tank and pump chamber as required by CMR 15.221(8). If you have any questions, please do not hesitate to call the Board of Health Office. Sincerely, Sandra Starr, R.S., C.H.O. Health Director cc: Homeowners Advantage Real Estate file i March 20, 2001 i J Sandra Starr North Andover Board of Health Administrator ^ Office of Community Development and Services 30 School Street North Andover, MA 01845 RE: Title V review for SDS Upgrade at 544 Foster Street Dear Sandra, Enclosed find our review of the"Checklist for North Andover Septic System Plans" for the proposed septic system upgrade at the above-mentioned site. The following is a list of technical deficiencies that Port Engineering has found. • System profile is not shown to scale as required by CMR 15.220(4)(o) and NA 8.02c. • Observed and adjusted ground water elevation in the vicinity of the system is not shown as required by CMR 15.220(4)(n). • Six inches of3/4" stone beneath the pump chamber is not specified as required by CMR 15.221(2) and 15.228(1). • Pump performance curve is not provided as required by CMR 220(4)(r). • Pump does not specify passing 1-1/4" solids as required by CMR 15.231(7). • Emergency storage and dosing volume calculations do not include flowback as required by CMR 15.231(2). • Manual operating switch for pump is not specified as required by NA 12.01 • Buoyancy calculations not shown for septic tank and pump chamber as required by CMR 15.221(8). If you have any questions or comments please feel free to contact me. incerely PORT INGINIIHING Paul D. Turbide, PE S - Civil Engineers& Land Surveyors One Harris Street Newburyport,MA 01950 (978)465-8594 \\Server P\NABH\P2884\FOSTER ST 544.DOC 03/14/01 13:07 FAX 508 337 9440 DDO ENGINEERING Q01 i 1 ' _ -- PldNidlMC-�F41fN CRWSf�l1171f1 F1-�PF�QA7ll�MS.4VdIF�•4VAST>�A1fA•Il�dfMACf._SFPTIC•S1TF F N !�I F F ,l Ri 19,A«risen P!ca�, An �F;®Id, q 02048-2512.Te1.508,339-0806,F4 508, 37-4440.Q,�9i!.ht♦oerg��gi apt .-P� j I larch i4, 200i al' Ms. Sandra Starr,K.g., C.H.O. Health Director Town of North Andover Community Development& Services 27 Charles Street North Andover, MA 01845 978-688-9540 RE: PLAN SUBMITTAL FOR SEPTIC SYSTEM REPAIR AT 544 FOSTER STREET,NORTH ANDOVER,MA j Dear Ms. Starr: Today, I received a letter from Ms. Susan Ford dated March 12, 2001. T am somewhat confused by the content. Do you need any additional information from my office to complete your plan review? ' Our F'ehruary 16, 2001 cover letter transmitted three copies of the proposed plan, a North Andover Septic Plan Submittal Form. an Annlica#ion for Disnosal Svstem Construction Permit, and a check fr,r th® 0.175 nlnat rPVIPVI fPP fn wirl;6nn the ceihmittAl letter reiterated the variances requested by a Y.w.. .®..®.. _.._ _ seeparate lea—cr also dated Febr'aat� IA 1001 gnil PvalLoatinn forrm wP_,{e_, nreVirn_lcly Submitted on LG1.6111VGr i✓ 2vvv. at is our .1nderstand n.- that -iie l:anve svubk) .;ttcd a comn1®te nlarka®e fn vnllr review. Please lotus Knew as aiJVr, as lallJJIVl6 whad uiuca data you iiaay rey uird- r yv Hearing .,.._�_J r`..k �.�.17 As you know, we did not notify abutters for the 5Qard or Health nearing wndilu—tcu vi► kC;Ulua y Lys 2001. We had specifically asked leis. Ford if the isOi-i required notification for the variances requested. The answer was "no". Based on Title 5 (18.404 (2jj, the variances that were granted did 1 not require abutter notification. For your convenience, we have enclosed the list of the variances grated at the February 22,2001 public hearing. q We concede that there was a concern raised at the public hearing regarding the permitting status of the Single Home FAST system_ At the hearing, we said that we suspected there was some clerical misunderstanding regarding the FAST permit and that we would be willing to investi gate other alte:n,lives if t1'.: FAST system permit had expired. As discussed with yoii- last week; the Single Hole FAST system proposed for this project is accepted by DEP®it does not expire until 2063_ i" hePGty-ce,eve have not revised our design. Please cah me if you have any additional questions. i Crust that our design plarr, leas bm-zrt (or will' be} forwarded to your reviewer. Vile will be happy to meet with the reviewer to discuss any questions they may have. Sincerely, DDtJN�i V� , David Obe_riander, P.E. trtvii/r, 1ronrnenial Englricct cc: Ovmer Enclos1—rd: List cf Variances Granted nandboh06 03/14/01 13:07 FAX 508 337 9440 BDO ENGINEERING UO2 March 14.2001--Page 2 1 VARIANCES GRANTED FOR 544 FOSTER STREET,NORTH ANDOVER I_ Title 5: 310 CMR 15.140—percolation Test: Use sieve analysis and soil evaluation to determine the LTA R. 2. Title 5: 310 CMR 15, Innovative/Altemative Technologies, Single Home FAST Remedial Use Approval, Section LA. Reduced Soil Absorption System: Allow the 50% reduction in the area of the soil absorption system. Other DLy 1/A technologies such as dioclere could be substituted in the event the f°`.AST permit had expired. 3. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part )3, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce the leaching facility setback from wetland from 100-feet to 50-feet as allowed by Title 5. 4. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part 13, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce the septic tank setback from wetland from 75-feet to 25-feet as allowed by Title 5. 5. Town of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage,Part C Design,9.04 Reserve Area: Waive the requirement to show a reserve area. | � PiAWNIM6�DfBGIV[0181RIVION DP0ND0Nf &W88- WA88WWDR D?A0AQ I SHIDK 01 ENGINEERING 47-A Wilson Place, Mansfield, MAU2048-25)2 'Tel: 508-339-0806 ' F�: 508-337-9440 'e-mail: February \U` 200| Ms. Susan Ford, BLB, Health Inspector Town o[North Andover � �FEB � M �� , ~~ � 00'; Community Development&c Services 27 Charles Street � North Andover, RY/\ 0|O45 978-688-9540 RE: PLAN SUBMITTAL FOR SEPTIC SYSTEM REPAIR AT544FOSTER STREET,NORTH ANDOVER,MA Dear Ms. Ford: The purpose of this letter is to submit our design plans for the repair nfu subsurface disposal ayntonn at the referenced address. Enclosed please find three ooyioa of the proposed plan, oNodh Andover Septic P|oo Submittal Form, an /\pp)ico1ino for Disposal System Construction Permit, and a obook for the $125 plan review fee. Please note the following variance requests: |. Title 5: 310CM& 15.140--Percolation Test: Use sieve analysis and soil evaluation todetermine the LT&I(. As you know, the saturated conditions o1 the tiruoofthe percolation test prevented | percolating in tile C layer. � 2. 7b\o 5: 3l0 CMD 15, Innovative/Alternative Technologies, 3bog|s 8mnno 9&8T Remedial Use Approval, Section I.A. Reduced Soil Absorption 3ya<ono: Allow the 50% reduction in the area � / of the soil absorption system. � 3. Town of North /\udovo/ Y0iuin/uno Requirements for the Subsurface Disposal of Sanitary Sewage, 9nd 10, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce tile leaching facility setback from wetland from |OO-feotto 50-fontanallowed by Title 5. 4. 1[op/n of North Andover Minimum Requirements for the Subsurface Disposal of Sanitary Sewage, Part B, Siting and Design of Systems, Section 5.00 Siting of Systems, 5.02 Distances: Reduce the septic tank setback from wetland from 75-feet to 25-feet as allowed by Title 5. 5. ?ov/u of North Andover 84inioouou Requirements for the 0nbmudbue Disposal of Sanitary 3o`puge` Part Design, 9.O4 Reserve Area: Waive the requirement tu show u reserve area. Due to the nuuuy site constraints on this property, there is no available area for reserve. Any future / oyytooum will likely require the dig out and rop|occoncn{ of the soil in the area of the proposed leaching field. P|ouuo confirm the time and place of our hearing. As discussed, we did not oo1iFv any abutters. Our \ , \ design plans were mailed to your office today via priority ooai|. Sincerely, Bt�q ENGINEE71 G David Oberlander, P.E. Civil/Environmental Engineer cc: Owner nandboh05 1 Fob-16-o1 03 :36P Nol-th Andovew- Com. Dev . 9786889542 P . 01 � SEPTIC PLAN SUBMITTAL l LOCATION: .544 NEW PLANS: YE „ $125.00IPIan e REVISED PLANS: YES $ 60.00/Plan SITE EVALUATION FORMS INCLUDED: 6E11S NO DATE: DESIGN ENGINEER: DATE TO CONSULTANT: *If you want your plans expedited, please submit three,plans and included a stamped envelope with the correct amount of postage to mail plans to Port Engineering. When the submission is all in place, route to the Health Secretary,.