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HomeMy WebLinkAboutCorrespondence - 45 BRIDGES LANE 2/14/2005 NEW ENGLAND ENGINEERING SERVICES February 14, 2005 f Susan Sawyers North Andover Board of Healthtt 400 Osgood Street North Andover, MA 01845 Re: 45 Bridges Lane,North Andover Local Upgrade Approval Form 9A, 9B Dear Susan: The following forms are being submitted as requested by your office. Enclosed are the following documents: 1. (2) Copies of the Form 9A-Application for Local Upgrade Approval. ?. (2) Copies of the E,orm 913-Local Upgrade Approval. Please contact this office with any questions or concerns. Sincerel %, V Thomas Hector Project Engineer 60 CBE ECHWOOD DRIVE-NOR-'rH ANDOVER, CAA 01845-(978)686-1768-(888)359-7645- FAX(978)685.4099 Commonwealth �f �11ass ohusetts —. City/Town of E Local Upgrade Approval �� ❑ Form 913 DEP has provided this form for use by local Boards of Health if they choose to do so. The Local Upgrade Approval is to be completed by the local Board of Health and a signed copy provided to the system owner. The system owner shall provide a copy of the Local Upgrade Approval to the appropriate Regional Office of the Department of Environmental Protection, Bureau of Resource Protection, Title 5 Permitting Program, upon issuance by the local approving authority and before commencement of construction. A. Facility Information Important: When filling out 1. Facility Name and Address forms on the computer, use Beth__KOenlg only the tab key Name to move your 45 Brld-�es Lane cursor-do not — - - - -- — use the return Street Address key. North Andover MA 01845 —_ —- -- — - City/Town State Zip Code rab 2. Owner Name and Address (if different from above): Beth Kaenlg 29 Berry Patch Lane cram Name Street Address Boxford MA City/Town State 01921 097$1 561-5007 Zip Code Telephone Number 3, Type of Facility (check all that apply): ® Residential ❑ Institutional ❑ Commercial ❑ School 4. Design flow per 310 CMR 15,203: 440 god New England Engineer 5. System Designer: Name ® PE ❑ RS 60 Beechwood Drive North Andover 01845 Address City/Town State,ZIP B. Approval 1. Local Upgrade Approval is granted for: Reduction in setback(s) —specify: 1. Reduction in offset distance between the leach bed and a foundation wall from 20 feet required by Title 5, Section 15.211(1) to 9 feet. 2. Reduction in offset distance between the leach bed and a property line from 10 feet required by Title 5, Section 15.211 1 to 6 feet. ❑ Reduction in SAS area of up to 25%: -- --- -- SAS size,sq.ft % reduction 926 Local Upgrade Approval 45 Bridges Lane, North Andover- rev. Local Upgrade Approval* Page 1 of 2 5/02 Commonwealth of Massachusetts City/Town of o Local Upgrade Approval Form 913 B. Approval (continued) ❑ Reduction in separation between the SAS and high groundwater: Separation reduction ft Percolation rate min./inch Depth to groundwater ft ❑ Relocation of water supply well (explain): List local variances granted not requiring DEP approval per 310 CMR 15.412(4): List variances granted requiring DEP approval: Approving Authority Print or Type Name and Title Signature Date 926 Local Upgrade Approval 45 Bridges Lane,North Andover•rev. Local Upgrade Approval* Page 2 of 2 5/02 Commonwealth of Massachusetts City/Town of a Form 9A — Application for Local Upgrade Approval �M 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 your local Board of Health to determine the form they use. Form 9A is to be submitted to the Local Board of Health for the upgrade of a failed or nonconforming septic system with a design flow of less than 10,000 gpd, where full compliance, as defined in 310 CMR 5.404(1), is not feasible. 310 CMR 15.403(4) requires the system owner to provide a copy of the local upgrade approval to the appropriate Regional Office of the Department of Environmental Protection, Bureau of Resource Protection, Title 5 Permitting Program, upon issuance by the local approving authority and before commencement of construction. System upgrades that cannot be performed in accordance with 310 CMR 15.404 and 15.405, or in full compliance with the requirements of 310 CMR 15.000, require a variance pursuant to 310 CMR 15.410 through 15.417. NOTE: Local upgrade approval shall not be granted for an upgrade proposal that includes the addition of a new design flow to a cesspool or privy, or the addition of a new design flow above the existing approved capacity of an on-site system constructed in accordance with either the 1978 Code or 310 CMR 15.000. A. Facility Information Important: When filling out 1. Facility Name and Address: forms on the computer, use Beth Koenig only the tab key Name to move your 4 cursor-do not 5 Bridges Lane use the return Street Address key. North Andover MA 01845 City/Town State Zip Code tab 2. Owner Name and Address (if different from above): Beth Koenig 29 Berry Patch Lane Name Street Address Boxford MA Cityrrown State 01921 (978) 561-5007 Zip Code Telephone Number 3. Type of Facility (check all that apply): ® Residential ❑ Institutional ❑ Commercial ❑ School 4. Describe Facility: Installation of replacement subsurface swage disposal system. 5. Type of Existing System: ❑ Privy ❑ Cesspool(s) ® Conventional ❑ Other(describe below): Current residential sewage disposal system is in failure. 926 Application for Local Upgrade Approval 45 Bridges Lane,North Application for Local Upgrade Approval* Page 1 of 4 Andover•rev.5/02 Commonwealth of Massachusetts City/Town of Form 9A - Application for Local Upgrade Approval iG^M 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 your local Board of Health to determine the form they use. A. Facility Information (continued) 6. Type of soil absorption system (trenches, chambers, leach field, pits, etc): Leach pits. 7. Design Flow per 310 CMR 15.203: Design flow of existing system: Unknown gpd Design flow of proposed upgraded system 440 gpd Design flow of facility: n/a gpd B. Proposed Upgrade of System 1. Proposed upgrade is (check one): ❑ Voluntary ❑ Required by order, letter, etc. (attach copy) ® Required following inspection pursuant to 310 CMR 15.301: 8/17/04 date of inspection 2. Describe the proposed upgrade to the system: 3. Local Upgrade Approval is requested for (check all that apply): ® Reduction in setback(s)—describe reductions: 1. Reduction in offset distance between the leach bed and a foundation wall from 20 feet required by Title 5, Section 15.211(1) to 9 feet. 2. Reduction in offset distance between the leach bed and a property line from 10 feet required by Title 5, Section 15.211(1)to 6 feet. ❑ Reduction in SAS area of up to 25%: SAS size,sq.ft. %reduction ❑ Reduction in separation between the SAS and high groundwater: Separation reduction ft Percolation rate min./inch Depth to groundwater ft 926 Application for Local Upgrade Approval 45 Bridges Lane, North Application for Local Upgrade Approval, Page 2 of 4 Andover•rev. 5/02 Commonwealth of Massachusetts City/Town of Form 9A - Application for Local Upgrade Approval 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 your local Board of Health to determine the form they use. B. Proposed Upgrade of System (continued) ❑ Relocation of water supply well (explain): ❑ Other requirements of 310 CMR 15.000 that cannot be met—describe and specify sections of the Code: If the proposed upgrade involves a reduction in the required separation between the bottom of the soil absorption system and the high groundwater elevation, an Approved Soil Evaluator must determine the high groundwater elevation pursuant to 310 CMR 15.405(1)(i)(1). The soil evaluator must be a member or agent of the local approving authority. High groundwater evaluation determined by: Andrew McBrearty 9/21/04 Evaluator's Name(type or print) Signature Date of evaluation C. Explanation Explain why full compliance, as defined in 310 CMR 15.404(1), is not feasible. (Each section must be completed) 1. An upgraded system in full compliance with 310 CMR 15.000 is not feasible: No other location available on the the lot for the system size required. 2. An alternative system approved pursuant to 310 CMR 15.283 to 15.288 is not feasible: A 1500 gallon Micro Fast septic tank is included in the design. 926 Application for Local Upgrade Approval 45 Bridges Lane, North Application for Local Upgrade Approval* Page 3 of 4 Andover•rev.5/02 Commonwealth of Massachusetts City/Town of Form 9A - Application for Local Upgrade Approval L1M 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 your local Board of Health to determine the form they use. C. Explanation (continued) 3. A shared system is not feasible: An appropriate area does not exist adjacent to this property. 4. Connection to a public sewer is not feasible: No sewer available in the area. 5. The Application for Local Upgrade Approval must be accompanied by all of the following (check the appropriate boxes): ❑ Application for Disposal System Construction Permit ❑ Complete plans and specifications ❑ Site evaluation forms ❑ A list of abutters affected by reduced setbacks to private water supply wells or property lines. Provide proof that affected abutters have been notified pursuant to 310 CMR 15.405(2). ❑ Other(List): D. Certification "I, the facility owner, certify under penalty of law that this document and all attachments, to the best of my knowledge and belief, are true, accurate, and complete. I am aware that there may be significant consequences for submitting false information, including, but not limited to, penalties or fine and/or imprisonment for deliberate violations." 0 � !t'q— 2/14/05 FacFy Owner's Signatu Date Benjamin C. Osgood Jr. PE (agent for owner) Print Name New England Engineering Services, Inc. 2/14/05 Name of Preparer Date 60 Beechwood Drive North Andover Preparers address C W--own MA 01845 (978) 686-1768 State/ZIP Code Telephone 926 Application for Local Upgrade Approval 45 Bridges Lane,North Application for Local Upgrade Approval* Page 4 of 4 Andover•rev.5102 .... ... .�..... ,. ...,� .... . ............ ,. ....-,.-.... o..... .. _. ... NEW�J"'.a G w. w I I E S I NC ..... ranuaiy 26, 2005 Susan Sawyer North Andover Board of Health 400 Osgood Street North Andover, MA 01845 JAN 2 a I)[J') "tl"owN ii 'f�°�ANDOVER Re: 45 Bridges Lane Lane, North Andover °AL°.H °E E mENw Septic System Plan Re-Submittal Dear Susan: The following plans for the above referenced property are being re-submitted for review and approval. The new septic design plans have been revised to reflect the continents in your letter dated January 1.8, 2005. The following changes have been addressed: 1. The minimum dose volume should be 5-10 times the lateral void volume. The plans reflect a minimuin close volume of 125 gallons. 2. Total dose volume does not include proper drain back volume. The plans reflect a drain back volume of 27 gallons. 3. Perforation positions. Perforations have been specified to be alternately positioned at 5 o'clock and 7 o'clock. 4. All perforations should be considered when doing calculations. Calculations and details accurately show 15 perforations in each lateral. Pump calculations were not affected, thus calculations dated 12/20/04 are still valid. Enclosed are (3) copies of the revised septic design plans. Please contact this office with any questions or concerns. Sincerely, / k4�04— A4-- Thomas hector Project Engineer 60 BEE4;HWOOD DRIVE-NORTI.-9 ANDOVER, MA 01845-(978)686-1768-(888)359-7645-FAX(978)685-1099 ,rOWN OF NORT11 ANDOVER O "fig°au ol`COMMUNITY DEVELOPMENTAND SERVICES HEALTH a a 400 OSGOOD S RE l" NORTH ANDOV1,1! , MASSACHUSETTS ()1845 Susan Y. Sawyer, 81:1...15/RS 978.6 8,954(D i�lrcrrrc 1'r.rblic Health Direcwr 978.688,9542 FAX January 18, 2005 Benjamin C. Osgood, Jr, P.E. New England Engineering Services,Inc. 60 Beechwood Drive North Andover, MA 01845 RE: 45 Bridges Lane,North Andover, MA Dear Mr. Osgood, The proposed septic system design plans for the above site dated October 1.5,2004, revised 12/03/04 and 12/20/04 and received on December 30, 2004 have been reviewed. Unfortunately, it cannot be approved until the following items are corrected. Each item is followed by the specific section in Title 5: 31.0 CMR 15.000, or North Andover regulation which is not met by this design. 1. The pressure distribution system shall be designed in accordance with the procedures set forth in Department guidance. (3 10 CMR 15.254(2)(c)). The following items in the design plan do not conform to the Title 5 Pressure Distribution Design Guidance: a. The minimum dose volume should be 5-1 Ox the lateral void volume. This should be 121 — 1.43 gallons per dose, b. The total dose volume does not include the proper drainback volume,which should be on the order of +/-28 gallons. c. A shield is required for any perforations located at the 6:00 o'clock position to reduce scouring of the aggregate below the lateral. Alternatively,perforations may be placed alternately at 5 o'clock and 7 o'clock positions without a shield, d. All perforations should be considered when doing calculations" It appears that the optional perforation vent hole at the distal end of the elbow of the lateral sweep is not accounted for in the volume discharge computations. Please feel free to contact the office with any questions you may have. We look forward to working with you to obtain a septic system which will be in compliance with all regulations and assure protection of public health and the environment of North Andover, Sincerely, 7;50 Scan Y. Sawyer, REHS4 /RS Public Health Director cc: Owner File Page 1 of 1 Dellechi ie, Pamela __ _ _ _ _ .. . _ .. __ _ _....._. _— From: Dan Ottenheimer[info @millriverconsulting.com] Sent: Tuesday, January 18, 2005 1:10 PM To: amcbrearty @millriverconsulting.com; Lisa Kozel LeVasseur; 'Pamela Dellechiaie'; Susan Sawyer Subject: 45 Bridges Lane Sue and company, Here is the review letter for 45 Bridges Lane. Hope this is in enough time for all parties to deal with this on Thursday evening. The changes needed are not significant ones which would scuttle the project. They involve correcting some engineering items in the soil absorption system design. The result might be a larger pump or some different piping but should not result in a different field configuration. Dan Daniel Ottenheimer, President Mill River Consulting Septic System Management Sendces 2 Blackburn Center Gloucester, MA 01930-2259 978-282-0014 or 1-800-377-3044 fax: 978-282-0012 w .r-riillt°ivr~rc«tisLIltin . orri dano(�),tiiillr;ivei°coriSulti l.eorrI 1/18/2005 TOWN OF NORTH ANDOVER AORrH 41 Office of COMMUNITY DE EL,OPMENT AND SERVICES ®g®®'I,`.e SQ� ©0, HEALTH DEPARTMENT 27 CHARLES STREET a - A "�, r 41 NORTH ANDOVER, MASSACHUSETTS 01845 9SSRCNUSE� Susan Y. Sa«ryer 978.688.9540—Phone Public Health Director 978.688.9542—FAX December 6,2004 Elizabeth Koenig 45 Bridges Lane North Andover,MA 01845 Re: 45 Bridges Lane,Map 104D,Parcel 120 Dear Homeowners, 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,Inc. dated October 15,2004 (Last Rev.December 3,2004). The 4-bedroom(9-room maximum)design has been approved for use in the construction of a replacement onsite septic system. At a regularly scheduled Board of Health meeting held on October 23,2004 the following upgrade and variance was approved regarding the proposed septic system. 1) A reduction in offset distance between the leach bed and a wetland from 100 feet to 88 feet. 2) A reduction in offset distance between the leach bed and a foundation wall from 20 feet required by Title V to 11 feet This approval generally is valid for three years from 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. The time period for which this plan is valid is reduced to two years from the date of a septic system inspection that did not meet the acceptable criteria in the state regulations. This approval is subject to the following conditions: 1. The attached DEP Form 9b must be submitted by the homeowner to the appropriate Regional Office of the Department of Environmental Protection at One Winter Street,Boston MA by the property owner. 2. A signed maintenance agreement for quarterly inspections,due to the use of the FAST treatment system,must be submitted prior to the issuance of a Certificate of Compliance will be issued by the Health Department. 3. 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)). 4. 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 Commission,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. 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, //RS 5 san Y. Sawyer,REH Public Health Director cc: New England Engineering Services Inc. attachments: form 9b sample maintenance agreement I Commonwealth of Massachusetts City/Town of Local Upgrade Approval Form 9B DEP has provided this form for use by local Boards of Health if they choose to do so. The Local Upgrade Approval is to be completed by the local Board of Health and a signed copy provided to the system owner. The system owner shall provide a copy of the Local Upgrade Approval to the appropriate Regional Office of the Department of Environmental Protection, Bureau of Resource Protection, Title 5 Permitting Program, upon issuance by the local approving authority and before commencement of construction. A. Facility Information When filling out 1. Facility Name and Address fog on the Elizabeth Koenig computer,use --- only the tab key Name to move your 45 Bridges Lane -- cursor-do not Stred Address use the return North Andover MA 01845 key. Cityfrown State Zip Code w 2. Owner Name and Address(if different from above): ,Km Name Street Address Cftyrrown State Zip Code Telephone Number 3. Type of Facility(check all that apply): X Residential ❑ Institutional ❑ Commercial ❑ School 4. Design flow per 310 CMR 15.203: 440 gpd Ben Osgood Jr. X PE ❑ RS 5. System Designer: Name 60 Beechwood Drive North Andover MA Address Cityrrom State,ZIP B. Approval 1. Local Upgrade Approval is granted for: X Reduction in setback(s)—specify: Reduction in setback distance between SAS and cellar wall from 20 feet to 11 feet ❑ Reduction in SAS area of up to 25%: SAS size,sq.ft. %reduction 45 Bridges Lane 9b 11.6.04.doc•rev.5102 Local Upgrade Approval• Page 1 of 2 Commonwealth of Massachusetts City/Town of Local Upgrade Approval Fonn 9B B. Approval (continued) ❑ Reduction in separation between the SAS and high groundwater: Separation reduction rt Percolation rate min./Inch Depth to groundwater rt ❑ Relocation of water supply well (explain): List local variances granted not requiring DEP approval per 310 CMR 15.412(4): Local bylaw variance to allow reduction in offset distance between the leach bed and wetlands from 100 feet to 88 feet List variances granted requiring DEP approval: Susan Sawyer Approving Authority Public Health Director October 25, 2004 Print or Type Name and Title f ure Date 45 Bridges Lane 9b 11.6.04.doc•rev.SW Local Upgrade Approval, Page 2 of 2 _............................�..INEW, _�_... ........................................................ I .................. � ��...o.._... i December 3, 2004 e.h Susan Sawyer North Andover Board of Health �a 27 Charles Street North Andover, MA 01845 Re: 45 Bridges lane, North Andover Septic System Design Dear Susan: The following plans and enclosures for the above referenced property are being submitted for approval. 1. (3) Copies of the revised Septic System Design Plans. These plans incorporate the following revisions to address the items in your letter dated November 12, 2004. 1, The grades over the system slope toward the house at 2%. They slope towards the house and towards the slope because it was considered not desirable to create a low area between the slope and the top of the system, The slope is not large so the water volume that will travel over the system will not have an adverse effect on the system. In order to route this water as it gets near the house, a swale has been specified running along the house to divert water away from the front of the house and out to the side. 2, The plan has been revised to include a conventional stone leach field that meets the design size requirements specified in title 5, 3. The drain back volume has been included in the dosing calculations. 4. The pressure distribution calculation worksheet is enclosed. 5. The blower unit and vent location have been specified. 6. A copy of the DEP approval letter for the fast system is enclosed. 7. Note 12 has been revised to say ALL 8. A draft operation and maintenance agreement is enclosed. 9. The date and name of the wetland delineator are included on the plan. 60 BE CHWWOOD DRIVE- NC)F''2TH ANDOVER, IAA 01845-(978)688-1°768-(888)369-7645- FAX(978)6M.10799 As you know, the owner is ready to sell the home as soon as the septic system design can be approved. Any assistance you could give to help complete the review and approval of this revised plan would be appreciated. If you have any comments or questions please do not hesitate to contact this office. Sincerely, Benjamin C. Osgoo , Jr. P.E. President NEW ENGLAND ENGINEERING SERVICES PRESSURE DISTRIBUTION DESIGN SPREADSHEET Property Location: 46 Bridges Lane,North Andover,MA Date:Qecembet,12 2004 DESIGN FLOW(in gallons/day)? 440 Calculated by TH Elevation of the PUMP OFF SWITCH,in feet? 93.2 Date: 12/2/04 Elevation of the upper LATERAL,in feel? 99,84 DELIVERY PIPE distance,from pump to manifold,in feet? 7 DELIVERY PIPE diameter,in inches(if not 2"--use 2"min)? 3 Design DISTAL PRESSURE,in feet(if not 2.5)?(hd) 3 IS MANIFOLD CENTER-FED&SYMETRICAL(yes or no)? yes YES How many orifices in the MANIFOLD? 0 MANIFOLD ORIFICE diameter,in inches(if not 5/16") 0.3125 0.3125 MANIFOLD DIAMETER(if not 2"--use 2"min)? 4 4 1 �„ TOTAL LENGTH OF MANIFOLD 12 3 �U ' Does MANIFOLD drain to FIELD after dose(yes or no)? no How rnany LATERALS? 4 Pumping chamber weep hole size(usually.25") 0,1875 USE 0 IF FORCE MAIN DOES NOT DRAIN PROGRAM WILL CALCULATE UP TO 26 LATERALS AND UP TO 50 ORIFICES PER LATERAL I r Your HIGHEST elevation lateral MUST be LATERAL 1: (first orifice from lateral 1/2 of orifice spacing) Lateral 1: Lateral 2: Lateral 3: Lateral 4: Length of each LATERAL,in feet? 69 69 69 69 Diameter of each LATERAL,in inches(1.5"min)? 1.5 1.5 1.5 1.5 Elevation of each LATERAL,in feet? 99.84 99.84 99.84 99.84 Number of ORIFICES per lateral 17 17 17 17 Distance from Manifold to closest Orifice,in feel 2.5 2.5 2.5 2.5 ORIFICE SPACING,in feel 4 4 4 4 Diameter of ORIFICES,in inches?(D) 0,25 0.25 0.25 0.25 Square feet of leachfield per laterals(can ignore) 147 147 147 147 Maximum number of orifices in any one lateral 17 Minimum lateral diameter 1.5 ;RESULTS FRICTION CALCULATIONS(using Hazen Williams friction ft=Ld((3.55Qm/Ch(DdA2.63)))A1.85) PRESSURE CALCULATIONS(using orifice dischage equation Q=11.79 DA2 hdA.5 Lateral 1: Lateral 2: Lateral 3: Lateral 4: LATERAL DISCHAGE(first approximation) 21.70 21.70 21.70 21.70 MANIFOLD ORIFICE DISCHARGE 0.00 TOTAL SYSTEM DISCHAGE(first approximation) 86.79 TOTAL DISCHARGE PER LATERAL 21.89 21.89 21.89 21.89 DISCHARGE PER SQUARE FOOT OF LEACHFIELD 0,14888551 0.14888551 0.1488855 0.1488855 ORIFICE MAXIMUM DISCHARGE BY LATERAL 1.31 1.31 1.31 1.31 ORIFICE MINIMUM DISCHARGE BY LATERAL 1.28 1.28 1.28 1.28 ORIFICE%DIFFERENCE DISCHARGE within LATERAL 2.4% 2.4% 2.4% 2.4% 0.0% MAXIMUM DISCHARGE LATERAL 21.89 MINIMUM DISCHARGE LATERAL 21.89 MAXIMUM DISCHARGE PER SQUARE FOOT 0.15 MINIMUM DISCHARGE PER SQUARE FOOT 015 •DIFFERENCE DISCHARGE for SYSTEM by orifice #REF! as percent of maximum orifice in system •DIFFERENCE DISCHARGE for SYSTEM by laterals 0.0% as percent of maximum lateral in system •DIFFERENCE DISCHARGE for SYSTEM by square feet 0.0% as percent of rnaximum square foot in system WEEP HOLE DISCHARGE(usually a 1/4"weep hole) 1.20 weep hole= 0.1875 inch VOID VOLUME IN DELIVERY PIPE 2.57 VOID VOLUME IN MANIFOLD 7.83 VOID VOLUME IN EACH LATERAL 6.33 6.33 6.33 6.33 0.00 TOTAL LATERAL VOID VOLUME 25.33 MINIMUM DOSE VOLUME(based on void volume) 126.67 to 253,35 MIN ACTUAL MINIMUM IS BASED ON DAILY DESIGN FLOW (weep hole,usually 1/4",not counted for dose,effluent is repumped during process and not counted for friction,except as fitting headloss) TOTAL HEAD LOSS IN EACH LATERAL 1.16 1.16 1.16 1.16 MAXIMUM TOTAL LATERAL HEADLOSS IN SYSTEM 1.16 MANIFOLD HEADLOSS(center-fed unless manifold design) 0.05 DELIVERY PIPE HEADLOSS 0.13 w/delivery 3 inch diameter FITTING LOSS(headloss'.15) 0.45 add extra head if fittings are more than absolute minimum DISTAL PRESSURE HEAD 3.00 STATIC HEAD(OFF-SWITCH TO HIGH LATERAL/MANIFOLD) 6.64 HEADLOSS PUMP TO WEEPHOLE(assume 3'run) 0.06 PUMP MUST BE ABLE TO PASS SOLIDS AT 88.75 G.P.M 11.49 FEET OF HEAD or After OTIS(network losses=1.3"distal head) 88.75 G.P.M. 13.75 FEET OF HEAD 60 BEECHWOOD DRIVE-NORTH ANDOVER,MA 01845-(978)686-1768-(888)359-7645- FAX(978)685-1099 TOWN OF NOR"I'll ANI)OVIell Office ol"(1)MMUNITY 1)FA/EL011MEN'T /,%ND SERVICT�S HEALTH DE!"AR'"FNIEN"I' 400 OSG001) S"I"'REEIT NORTH AND(WER, MASSACHUSE"T"I'S 01945 Susan 'Y &amyo% RETIS/RS 978f)99,9540 Phow Public Heahh Diwcoor 978,6W9542 FAN November 12, 2004 Benjamin C. Osgood, Jr, P.E. New England Engineering Services, Inc. 60 Beechwood Drive North Andover, MA 01845 RE: 100 Raleigh Tavern Lane, North Andover, MA Dear Mr. Osgood, The proposed septic system design plans for the above site dated October 15, 2004 and received on October 20, 2004 has been reviewed. Unfortunately, it cannot be approved until the following items are corrected. Each item is followed by the specific section in Title 5: 310 CMR 15.000, or North Andover regulation which is not met by this design. 1. Please show grading so that it slopes away from the building and leaching field (3 10 CMR 15.240(11)&245(5)). 2. The plan includes the use of a DEP-approved wastewater pretreatment unit and gravel- less chambers(Infiltrator brand). The Design Plan shows a reduction of 2' from the bottom of the leaching field to the ESHGW as well as a reduction in area calculated for Infiltrator Chambers. This is a"double credit" and is not allowed under Title 5. Infiltrator Chambers may be used, but are not allowed to reduce leaching field size when using pre- treatment. 3. The dose volume for the pump chamber does not include the drain-back volume from the manifold and the force main. (3 10 CMR 15.23 1(2)). 4. Please include calculations used to determine pump sizing for the pressure distribution system, 5. Please specify the location of blower unit and vent for the treatment device. 6, Please include a copy of the Massachusetts DEP approval letter for use of the treatment unit. 7. Construction note 12 should indicate that ALL piping(not just gravity piping) must be glued watertight. 8. Please provide a draft operations and maintenance agreement for the treatment unit and pressure distribution system. 9. Please indicate the date of wetland delineation, name of delineator, and whether this has been accepted by the Conservation Commission. ENGINEERING NEW ENGLAND I S PRESSURE DISTRIBUTION DESIGN SPREADSHEET Property Location: 45 Bridges Lane,North Andover,MA 2/1 ?_MI D DESIGN FLOW(in gallons/day)? 440 Elevation of the PUMP OFF SWITCH,in feet? 93.2 Elevation of the upper LATERAL,in feet? 99.71 DELIVERY PIPE distance,from pump to manifold,in feel? 42 DELIVERY PIPE diameter,in inches(if not 2"--use 2"min)? 3 Design DISTAL PRESSURE,in feet(if not 2.5)?(hd) 3 IS MANIFOLD CENTER-FED&SYMETRICAL(yes or no)? yes YES How many orifices in the MANIFOLD? 0 MANIFOLD ORIFICE diameter,in inches(if not 5/16") 0.3125 0.3125 MANIFOLD DIAMETER(if not 2"--use 2"min)? 4 4 TOTAL LENGTH OF MANIFOLD 18 Does MANIFOLD drain to FIELD after dose(yes or no)? no How many LATERALS? 5 Pumping chamber weep hole size(usually.25") 0.25 USE 0 IF FORCE MAIN DOES NOT DRAIN PROGRAM WILL CALCULATE UP TO 26 LATERALS AND UP TO 50 ORIFICES PER LATERAL Your HIGHEST elevation lateral MUST be LATERAL 1: (first orifice from lateral 1/2 of orifice spacing) Lateral 1: Lateral 2: Lateral 3: Lateral 4: Lateral 5: Length of each LATERAL,in feet? 37.24 46.62 53.62 60.62 66.5 Diameter of each LATERAL,in Inches('15"min)? 1.5 1.5 1.5 1.5 1.5 Elevation of each LATERAL,in feel? 99.71 99.71 99.71 99.71 99,71 Number of ORIFICES per lateral 15 15 15 15 15 Distance from Manifold to closest Orifice,in feet 0 0 0 0 0 ORIFICE SPACING,in feet 2.66 3.33 3.83 4,33 4.75 Diameter of ORIFICES,in inches?(D) 0.25 0.25 0.25 0.25 0.25 Square feet of leachfield per laterals(can ignore) 220 220 220 220 220 Maximum number of orifices in any one lateral 15 Minimum lateral diameter 1.5 RESULTS FRICTION CALCULATIONS(using Hazen Williams friction ft=Ld((3.55Qm/Ch(DdA2.63)))A1.85) PRESSURE CALCULATIONS(using orifice dischage equation Q=11.79 DA2 hdA.5 Lateral 1: Lateral 2: Lateral 3: Lateral 4: Lateral 6, LATERAL DISCHAGE(first approximation) 19.14 19.14 19.14 19.14 19.14 MANIFOLD ORIFICE DISCHARGE 0.00 TOTAL SYSTEM DISCHAGE(first approximation) 9532 TOTAL DISCHARGE PER LATERAL 19.23 19.25 19.27 19.29 19.30 DISCHARGE PER SQUARE FOOT OF LEACHFIELD 0.08741571 0.08751525 0,0875896 0.0876639 0.0877263 ORIFICE MAXIMUM DISCHARGE BY LATERAL 1.29 1.30 1.30 1.30 1.30 ORIFICE MINIMUM DISCHARGE BY LATERAL 1.28 1.28 1.28 1.28 1.28 ORIFICE%DIFFERENCE DISCHARGE within LATERAL 12% 1.5% 1.8% 2.0% 2.2% MAXIMUM DISCHARGE LATERAL 19.30 MINIMUM DISCHARGE LATERAL 19.23 MAXIMUM DISCHARGE PER SQUARE FOOT 0.09 MINIMUM DISCHARGE PER SQUARE FOOT 0,09 •DIFFERENCE DISCHARGE for SYSTEM by orifice #REF! as percent of maximum orifice in system •DIFFERENCE DISCHARGE for SYSTEM by laterals 0.4% as percent of maximum lateral in system •DIFFERENCE DISCHARGE for SYSTEM by square feet 0.4%as percent of maximum square foot in system !. WEEP HOLE DISCHARGE(usually a 1/4"weep hole) 2.19 weep hole= 0.25 inch VOID VOLUME IN DELIVERY PIPE 15.42 VOID VOLUME IN MANIFOLD 11.75 VOID VOLUME IN EACH LATERAL 3.42 4.28 4.92 5.56 6,10 TOTAL LATERAL VOID VOLUME 24.29 MINIMUM DOSE VOLUME(based on void volume) 121.44 to 242.89 MIN ACTUAL MINIMUM IS BASED ON DAILY DESIGN FLOW (weep hole,usually 114",riot counted for dose,effluent is repumped during process and not counted for friction,except as fitting headless) TOTAL HEAD LOSS IN EACH LATERAL 0.50 0.62 0.72 0.81 0.89 MAXIMUM TOTAL LATERAL HEADLOSS IN SYSTEM 0.89 MANIFOLD HEADLOSS(center-fed unless manifold design) 0.04 DELIVERY PIPE HEADLOSS 0.92 w/delivery 3 inch diameter FITTING LOSS(headless`.15) 0,45 add extra head if fittings are more than absolute minimum DISTAL PRESSURE HEAD 3.00 STATIC HEAD(OFF-SWITCH TO HIGH LATERAL/MANIFOLD) 6.51 HEADLOSS PUMP TO WEEPHOLE(assume 3'run) 0.07 PUMP MUST BE ABLE TO PASS SOLIDS AT 98.53 G.P.M 11.88 FEET OF HEAD or After OTIS(network losses=1.3'distal head) 98.53 G.P.M. 14.43 FEET OF HEAD 60 BEEC;E°IVtdC,OD DRIVE ••NOR'rH ANDOVER, MA 01134-5-(978)086..1768-(888)359-7545- FAX(978)685-1099 „ Town of North Andover ALTH DEPARTME NT 27 Charles Street North Andover,MA 01845 978.688.9540 SEPTIC PLAN SUBMITTAL FORM ltealtlade,�t�oivnofnortliandover.com DATE OF SUBMISSION: 1 A e _ SITE LOCATION: geM . ENGINEER: vi a CeS <' --,- NEW PLANS: YES $225.00/Plan Check#: (Includes 1 (N e and one Re-Review Only) REVISED PLANS: YES $75.00/Plan Check#: SITE EVALUATION FORMS INCLUDED: (YESµ ' NO LOCAL UPGRADE FORM INCLUDED: YES NO Telephone#: c� `c�� � 1 ` Fax#• 61'7 E-mail: HOMEOWNER NAME: OFFICE USE ONLY When the submission is complete (including check): 1. Date stamp plaits and letter �nf '� �� � z Complete and attach Receipt 3. /.� ;,Copy File, Forward to Consultant 4. °`` Enter on Log Sheet and Database � NEW ENGLAND ENGINEERING SERVICES .. _..., __...�.� .. ... ........ ... .. .... a �v October 15, 2004 m„ . Susan Sawyer 0 CT "?0 North Andover Board of Health 27 Charles Street North Andover, MA 01845 Re: 45 Bridges Lane,North Andover, MA Local Bylaw Waiver Request Dear Susan, The purpose of this letter is to request that the above referenced property be included in the upcoming Board of Health meeting agenda to discuss the following variances: Local Bylaw Waivers Required 1. Allow reduction in offset distance between leach bed and wetlands from 100 feet required to 88 feet. If you have any comments or questions please do not hesitate to contact this office. Sincerely, Steven E. Pouliot Project Manager 60 BEE:C HWVOOD DRIVE..NORT14 ANDOVER, NIA 0114345..(9743)655-1768-(888)359-76545 w FAX(978)685-1099 Commonwealth of Massachusetts City/Town of a Form 9A — Application for Local Upgrade Approval ,M 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 your local Board of Health to determine the form they use. Form 9A is to be submitted to the Local Board of Health for the upgrade of a failed or nonconforming septic system with a design flow of less than 10,000 gpd, where full compliance, as defined in 310 CMR 5.404(1), is not feasible. 310 CMR 15.403(4) requires the system owner to provide a copy of the local upgrade approval to the appropriate Regional Office of the Department of Environmental Protection, Bureau of Resource Protection, Title 5 Permitting Program, upon issuance by the local approving authority and before commencement of construction. System upgrades that cannot be performed in accordance with 310 CMR 15.404 and 15.405, or in full compliance with the requirements of 310 CMR 15.000, require a variance pursuant to 310 CMR 15.410 through 15.417. NOTE: Local upgrade approval shall not be granted for an upgrade proposal that includes the addition of a new design flow to a cesspool or privy, or the addition of a new design flow above the existing approved capacity of an on-site system constructed in accordance with either the 1978 Code or 310 CMR 15.000. A. Facility Information Important: When filling out 1. Facility Name and Address: forms on the computer, use Elizabeth Koenig only the tab key Name to move your 45 Bridges Lane cursor-do not Street Address use the return key. North Andover MA 01845 City/Town State Zip Code r� 2. Owner Name and Address(if different from above): same ienan Name Street Address City/Town State Zip Code Telephone Number 3. Type of Facility (check all that apply): ® Residential ❑ Institutional ❑ Commercial ❑ School 4. Describe Facility: Installation of new residential subsurface sewage disposal system. 5. Type of Existing System: ❑ Privy ❑ Cesspool(s) ® Conventional ❑ Other(describe below): Current residential sewage disposal system is in failure. 45 BRIDGES LN-FORM 9a•rev.5/02 Application for Local Upgrade Approval* Page 1 of 4 Commonwealth of Massachusetts City/Town of Form 9A - Application for Local Upgrade Approval �M 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 your local Board of Health to determine the form they use. A. Facility Information (continued) 6. Type of soil absorption system (trenches, chambers, leach field, pits, etc): Leach field 7. Design Flow per 310 CMR 15.203: Design flow of existing system: Unknown gpd Design flow of proposed upgraded system 440 gpd Design flow of facility: gpd gpd B. Proposed Upgrade of System 1. Proposed upgrade is (check one): ® Voluntary ❑ Required by order, letter, etc. (attach copy) ❑ Required following inspection pursuant to 310 CMR 15.301: date of inspection 2. Describe the proposed upgrade to the system: 3. Local Upgrade Approval is requested for(check all that apply): ® Reduction in setback(s)—describe reductions: Request reduction in setback distance between SAS and cellar wall (foundation) from 20 feet required by Title V Section 15.211 to 11 feet. ❑ Reduction in SAS area of up to 25%: SAS size,sq.ft. %reduction ❑ Reduction in separation between the SAS and high groundwater: Separation reduction ft Percolation rate min./inch Depth to groundwater ft 45 BRIDGES LN-FORM 9a•rev.5/02 Application for Local Upgrade Approval* Page 2 of 4 Commonwealth of Massachusetts City/Town of a Form 9A - Application for Local Upgrade Approval 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 your local Board of Health to determine the form they use. B. Proposed Upgrade of System (continued) ❑ Relocation of water supply well (explain): ❑ Other requirements of 310 CMR 15.000 that cannot be met—describe and specify sections of the Code: If the proposed upgrade involves a reduction in the required separation between the bottom of the soil absorption system and the high groundwater elevation, an Approved Soil Evaluator must determine the high groundwater elevation pursuant to 310 CMR 15.405(1)(i)(1). The soil evaluator must be a member or agent of the local approving authority. High groundwater evaluation determined by: Andrew McBrearty 8/3/04 Evaluator's Name(type or print) Signature Date of evaluation C. Explanation Explain why full compliance, as defined in 310 CMR 15.404(1), is not feasible. (Each section must be completed) 1. An upgraded system in full compliance with 310 CMR 15.000 is not feasible: No other location available on the lot for the system size required. 2. An alternative system approved pursuant to 310 CMR 15.283 to 15.288 is not feasible: A 1500 gallon Micro Fast Septic tank is included in the design. 45 BRIDGES LN-FORM 9a•rev.5/02 Application for Local Upgrade Approval* Page 3 of 4 Commonwealth of Massachusetts City/Town of a Form 9A — Application for Local Upgrade Approval o �M 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 your local Board of Health to determine the form they use. C. Explanation (continued) 3. A shared system is not feasible: 4. Connection to a public sewer is not feasible: Town sewer is not in the area of the property. 5. The Application for Local Upgrade Approval must be accompanied by all of the following (check the appropriate boxes): ❑ Application for Disposal System Construction Permit ❑ Complete plans and specifications ❑ Site evaluation forms ❑ A list of abutters affected by reduced setbacks to private water supply wells or property lines. Provide proof that affected abutters have been notified pursuant to 310 CMR 15.405(2). ❑ Other(List): D. Certification "I, the facility owner, certify under penalty of law that this document and all attachments, to the best of my knowledge and belief, are true, accurate, and complete. I am aware that there may be significant consequences for submitting false information, including, but not limited to, penalties or fine and/or imprisonment for deliberate violations." f' I 9/9/04 Clc -c aicitity wner's Signature Date Ben!amin C. Osgood, Jr., P.E. (Agent for owner) New England Engineering 9/9/04 Name of Preparer Date 60 Beechwood Drive North Andover Preparer's address City/Town MA 978-686-1768 State/ZIP Code Telephone 45 BRIDGES LN-FORM 9a•rev.5/02 Application for Local Upgrade Approval, Page 4 of 4