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HomeMy WebLinkAboutApplication - 1312 SALEM STREET 8/22/2005 Town of Nat°tea' Andover HEALTH DEPARTME NT .. 27 Charles Street 1 �E North Andover,MA 01845 �: 978.688.9540 1 L �i 1 healthdept(Dfmvnofnorthandover com SEPTIC PLAN SUBMITTAL FORM DATE OF SUBMISSION: tcy W c C SITE LOCATION: / / A/M1a�� Gr / vr� er ENGINEER: b o (/ NEW PLANS: YES $225.00/Plan o?�?S°_' Check#: (Includes IS`MV�and one Re-Review Only) REVISED PLANS: YES $75.00/Plan Check#: SITE EVALUATION FORMS INCLUDED: YES NO LOCAL UPGRADE FORM INCLUDED: 6s) NO Telephone#: /` S-6&- Fax#: E-mail: nee-29Z2 (r4 1' e ROME OWNER NAME: OFFICE USE ONLY When the submission is complete (including check): 1. Date stamp plans and letter. 2. Complete and attach Receipt 3. e,/" Copy File, Forward to Consultant d. ,-"- Enter on Log Sheet and Database .�.. ._.. ...,. �... �.�.�.�. . ....._........ _._.... _._. ....,.,�� _. .. .. ... INC August 20, 2005 Susan Sawyer North Andover Board of Health 400 Osgood Street North Andover, MA 01845 ,i.b( i PJ , Re: 1312 Salem Street, North Andover,MA ........... Septic System Design Plan Submittal Dear Ms. Sawyer, The following plans and enclosures for the above referenced property are being submitted for approval. 1. (3) Copies of the Septic System Design Plans. 2. (2) Copies of the Form 11 Soil Evaluator Sheets. 3. (2) Copies of the Form 12-Percolation Test Sheets. 4. (2) Copies of the Sewage Pump Calculations 5. (2) Copies of the Local Upgrade Approval letter requesting placement on the agenda at next Board of Health meeting. 6. (2) Copies of the Form 9A-Request for Local Upgrade Approval. 7. (2) Copies of the Form 913- Local Upgrade Approval 8. (2) Copies of the hnfiltrator DEP Approval 9. (2) Copier of the Micro-Fast System DEP approval. 10. (2) Copies of the Micro-Fast System Maintenance Agreement (Draft Copy). 1.1. (2) Copies of the hrtiltrator Letter of Slope Clarification. 12. (1) Copy of the Septic System Submittal Form. 13. Check for the Town approval fees. Please contact this office with any questions or concerns. Sincerely, Thomas Hector Project Engineer 0 B ECHwOOD DRIVE- NORTH ANDOVER, MA 01845-(978)686-1768 (888):59..764 r F-AX(978)685-4099 TOWN OF NORTH ANDOVERor�rw q Office of COMMUNITY DEVELOPMENT AND SERVICES HEALTH DEPARTMENT 400 OSGOOD STREET NORTH ANDOVER, MASSACHUSETTS 01845 SncNUSe 978.6889540—Phone Susan Y.Sawyer,REHSIRS 978.688.8476—FAX Public Health Director E-MAIL:healthde it a,townoffiorthandover.com WEBSITE:http://www.townofnorthandover.com SEPTIC PLAN SUBMITTAL FORM � � RECEI Date of Submission: v �2� " TOWN OF NOR TH ANDOVER, Site Location: 1 312 e I-e M free H : :w u t�pA k x Engineer: Ajew 606A / yiajjneery xq ecyac 5 Ili IJ New Plans? Yes $225/Plan Check# (includes 1St submission and one re- review only) Revised Plans? Yes_X$75/Plan Check# e478 Site Evaluation Forms Included? Yes No X Local Upgrade Form Included? Yes_ No Telephone#:(°�7 8, (o 8 ° 176 13 Fax#: ) C cI l E-mail: neesev�glo 0_01,CO Homeowner Name: 6-o-y /k)e j 5oy\ OFFICE USE ONLY When the submission is complete(including check): Date stamp plans and letter Complete and attach Receipt ,Copy File; Forward to Consultant 'Z o Enter on Log Sheet and Database .........................................................................�.. ,....... ..... . NEW E G ENGINEERING II ..�..�._...............v.. ........... ....................,.................................. INC ................. .. ... ..... �w. _.. ...... .� ,. ,.. November 18, 2005 IVED Susan Sawyer North Andover Board of Health NOV w 2005 400 Osgood Street North Andover, MA 01845 TO OF O TH ANA v " Re: 1312 Salem Street, North Andover, MA Septic System Design Plan Re-Submittal Dear Ms. Sawyer, The following plans and enclosures for the above referenced property are being submitted for approval. This is in response to the current status of the installation with respect to ledge and bedrock found in the proposed system location. Additional field testing was performed by Benjamin C. Osgood, Jr., P.E., and witnessed by Michelle Grant,North Andover Board of Health, on 11115105. It has been concluded that a replacement system can be installed in close proximity to the previously approved design plan (last revised on 10/12/05). Changes to the previously approved plan are as follows: 1. Local Upgrade Approval Required. New Local Upgrade Approvals are required for this revised design plan. The Local Upgrade Approval seeks a reduction in offset distance between a leach bed and a property line from 10 feet to 3 feet. Also, a reduction in overdig offset from 5 feet to 3 feet. Supporting documentation regarding this request is enclosed. 2. Addition of Special Design Note. A special provision is indicated in the notes section on sheet 1, and states that the property line must be staked by a professional land surveyor to insure accuracy of the property line. 3. Leach Bed Infiltrator Configuration. The new configuration of Infiltrator chambers is proposed to be 3 rows x 14 chambers. The effective leach area is 792.96 square feet which exceeds the minimum area required of 785.71 square feet. This is calculated in the design data section on sheet 1. It is also graphically depicted on sheet 1 and sheet 2. 4. Segmental Block Retaining Wall. A segmental block retaining wall is proposed. The top of the wall shall be less than 2 feet in height above grade. This can be found in the Infiltrator End Detail on sheet 2. 60 BEECHVVOOD DRIVE—NORTH ANDOVER, MA(:b1845..(978)686-1768—(888)359.764"3.. FAX(978)685.1099 RECEIVED NOV 1 8 2005 TOWN OF NOF0 Fi ANDOVER 5. Revised Pipe Lengths of Force Main, Manifold, and Discharge Laterals. a. Force main length was extended from 21 feet to 26 feet. Calculations have been revised in the dosing notes (sheet 2) and pressure distribution spreadsheet(separate handout). This is graphically depicted in the plan view(sheet 1) and the system profile (sheet 2). b. Manifold has been reduced in length. Calculations have been revised in the dosing notes (sheet 2) and pressure distribution spreadsheet(separate handout). This is graphically depicted in the plan view(sheet 1) and the pipe layout detail (sheet 2). c. Discharge laterals were extended to 56 feet. Calculations have been revised in the dosing notes (sheet 2) and pressure distribution spreadsheet (separate handout). This is graphically depicted in the plan view(sheet 1), the pipe layout detail (sheet 2), and the system profile (sheet 2). 6. Orifice Spacing. The required spacing of the orifices has been adjusted for optimum pump efficiency and to meet the pressure distribution guidelines of Title 5. Calculations have been revised in the pressure distribution spreadsheet(separate handout), and in the pipe layout detail (sheet 2). 7. Hydromatic SP40 (4/10 hp)Pump. A new system curve was developed, however, the Hydromatic SP40 pump shall still be specified. Calculations have been revised in the pump notes (sheet 2), dosing notes (sheet 2) and the pressure distribution spreadsheet. 8. Elevations. No changes have been made with respect to the elevations of the foundation invert, tanks, distribution box, ESHGW, bottom of bed, or breakout. These changes are reflected in the plan entitled, "Proposed Subsurface Sewage Disposal System, 1312 Salem Street,North Andover, MA, Assessors Map 106A, Lot 160," dated August 19, 2005, revised to November 17, 2005. Enclosed are the following documents for review. 1. (3) Copies of the Revised Septic Design Plan 2. (2) Copies of Pressure Distribution Calculations 3. Letter of Request to be placed on the Board's November 19t", 2005 meeting agenda. 4. Form 9A—Request for Local Upgrade Approval 5. Form 9B—Local Upgrade Approval Please contact this office with any questions or concerns. Sincerely, Thomas Hector Project.Engineer . ..........�. .................—....._............ .. — d.---- .... _........ � ___._ .._ ..,. ..................................... November 18, 2005 Susan Sawyer mm North Andover Board of Health 400 Osgood Street NOV 5 North Andover, MA 01845 TOWN 0: NORp-1 ANDOVE R HEALTH DEPA R'u MEm�T Re: 1312 Salem Street,North Andover, MA Local Upgrade Approval Request Dear Ms. Sawyer, The purpose of this letter is to request that the above referenced property be included in the upcoming Board of Health meeting agenda on November 19, 2005 to discuss the following Local Upgrade Approval request: Local Upgrade Approvals Required 1. Reduction in offset distance between the leach bed and a property line from 10 feet required by Title 5, Section 15.211(1) to 3 feet. 2. Reduction in overdig from 5 feet required by Title 5, Section 15.255(5) to 3 feet. If you have any questions or comments, please do not hesitate to contact this office. Sincerely, 12L'�v / V�d- Thomas Hector Project Engineer 60 BEECHV1/OOD DRIVE- NORTH NCJt VER, MA 0184 m,(978) 86-1768-(888)359-7645- FAX( 78)685-1099 NEW ENGLAND ENGINEERING SERVICES : . PRESSURE DISTRISUMN DESIGN SPREADSHEET Property Locatlow 9312 SALEM STREET NORTH ANDOVER,MA November..16,2005 DESIGN FLOW(in gallons/day)? 440 Elevation of the PUMP OFF SWITCH,in feet? 93.4 Elevation of the upper LATERAL,in feet? 97.55 „„ µ DELIVERY PIPE distance,from pump to manifold,in feet? 26 " DELIVERY PIPE diameter,in inches(if not 2"--use 2"min)? 3 CC- Design DISTAL PRESSURE,in feet(if not 2.5)?(hd) 4 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 0.3125 MANIFOLD DIAMETER(if not 2"--use 2"min)? 4 4 TOTAL LENGTH OF MANIFOLD 8 (y tlY� t Does MANIFOLD drain to FIELD after dose(yes or no)? no O F, p (2 nof C`9(� How many LATERALS? 3 Pumping chamber weep hole size(usually.25") 0.25 USE 0 IF FORCE MAIN DOES NOT DRAIN n � 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: Length of each LATERAL,in feet? 56 56 56 Diameter of each LATERAL,in inches(1.5"min)? 1.5 1.5 1.5 Elevation of each LATERAL,in feet? 97.55 97.55 97.55 Number of ORIFICES per lateral 16 16 16 Distance from Manifold to closest Orifice,in feet 1.75 1.375 1.375 ORIFICE SPACING,in feet 3.5 3.5 3.5 Diameter of ORIFICES,in inches?(D) 0.25 0.25 0.25 Square feet of leachfield per laterals(can ignore) Maximum number of orifices in any one lateral 16 Minimum lateral diameter 1.5 FRICTION CALCULATIONS(using Hazen Williams friction ft=Ld((3.55Qm/Ch(DdA2.63)))^1.85) PRESSURE CALCULATIONS(using orifice dischage equation Q=11.79 D42 hdA.5 Lateral l: Lateral 2: Lateral 3: LATERAL DISCHAGE(first approximation) 23.58 2358 2158 MANIFOLD ORIFICE DISCHARGE 0.00 TOTAL SYSTEM DISCHAGE(first approximation) 70.74 TOTAL DISCHARGE PER LATERAL 2334 23.74 23.74 DISCHARGE PER SQUARE FOOT OF LEACHFIELD #DIV/01 #DIV/01 #DIV/01 ORIFICE MAXIMUM DISCHARGE BY LATERAL 1.50 1.50 1.50 ORIFICE MINIMUM DISCHARGE BY LATERAL 1.47 1.47 1.47 ORIFICE%DIFFERENCE DISCHARGE within LATERAL 1.8% 1.8% 1.8% 0.0% 0.0% MAXIMUM DISCHARGE LATERAL 23.74 MINIMUM DISCHARGE LATERAL 23.74 MAXIMUM DISCHARGE PER SQUARE FOOT #DIV/01 MINIMUM DISCHARGE PER SQUARE FOOT #DIV/01 •DIFFERENCE DISCHARGE for SYSTEM by orifice #REFI 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 as percent of maximum square foot in system WEEP HOLE DISCHARGE(usually a 1/4"weep hole) 1.98 weep hole= 0.25 inch VOID VOLUME IN DELIVERY PIPE 9.55 VOID VOLUME IN MANIFOLD 5.22 VOID VOLUME IN EACH LATERAL 5.14 5.14 5.14 TOTAL LATERAL VOID VOLUME 15.42 MINIMUM DOSE VOLUME(based on void volume) 77.11 to 154.21 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 1.10 1.09 1.09 MAXIMUM TOTAL LATERAL HEADLOSS IN SYSTEM 1.10 MANIFOLD HEADLOSS(center-fed unless manifold design) 0.06 DELIVERY PIPE HEADLOSS 0.33 w/delivery 3 Inch diameter FITTING LOSS(headloss`.15) 0.60 add extra head if fittings are more than absolute minimum DISTAL PRESSURE HEAD 4.00 STATIC HEAD(OFF-SWITCH TO HIGH LATE RAUMAN[FOLD) 4.15 HEADLOSS PUMP TO WEEPHOLE(assume T run) 0.04 PUMP MUST BE ABLE TO PASS SOLIDS AT 73.19 G.P.M 10.28 FEET OF HEAD or After OTIS(network losses=1.3'distal head) 7319 G.P.M. 13,76 FEET OF HEAD CO BEEC:)1-1V\MOD DRIVE NOR 111 ANDOVER, MA 01845-(978)686-1768••(43U)359-7645- FAX(978)685-1099 NEW ENGLAND ENGINEERING VI NC : . ...w _...... ... w........... ..... ...... ... NEW ENGL/kND EN(:`IH�4EERING SERVICES .....�. .... -�w.W.- October 13, 2005 Susan. Sawyer I North. Andover Board of Health 400 Osgood Street i D 0"1 North Andover, MA 01.845 ur, Re: 1312 Salem Street, North Andover, MA Septic System. Design Plan Re-Submittal Dear Ms. Sawyer, "File following plans and enclosures for the above referenced property are being submitted for approval. This is in response to your letter dated September 14, 2005 regarding the septic design plan review for the above referenced property. The issues have been addressed as follows: 1. Additional Soil Testing. Additional testing to the eastern side of the SAS was restricted due to the fact that the site had variable depth to shallow bedrock. In addition, testing could not be performed near the existing (flooded and tailed) leach area or system components, in fear that disruption to the current system could create an emergency situation. If the Board otl-lealth feels that testing is needed in this area, it would have to be done prior to the construction of the field. 2. Wetland Resource Areas Present. It was determined in the field, the day of soil testing, that any wetland resource area was well over 150 feet from the proposed test pit location and proposed leaching facility location. This was determined by Benjanr�n C. Osgood, Jr. and Andrew 1VIcBrearty of Mill River Consulting. 3. Determination of Site Location. The decision for the proposed site location was determined through the process of elimination, Other areas on the property were wooded with outcrops, which is typical for this area. Also, with wetland resource areas present, we wanted to keep a maximmu distance to those areas. Testing was not performed in other areas because no other suitable areas were found as determined by Benjamin C. Osgood, Jr, and Andrew McBrearty of Mill River Consulting, 4. Distal (lead Squirt Height. TIlls figure is now located in the Design Data section on sheet 1, and is also indicated in the l'ipe I.,ayout Detail on sheet 2. 60 fftE0 CHV1JOOD DRIVE- NORTH AfVL7c VER, MA 01845-(97 3)686-1768 -(US)359-7645- F-AX(978)685.1099 5. Cite DEP Policy Number. This has been addressed and is included in the Special Design Note on sheet 1. Additionally, changes to the design data have been made with respect to the 25% reduction the leach field. Under the original design plan (dated August 19, 2005), a 25%reduction in leach field size had been sought. Due to a revised interpretation of the MicroFAST system approval by DEP, the use of the infiltrator size reduction approval by DEP can be combined with the reduced soil depth requirement of the MicroFAST system. This revised design plan has been adjusted accordingly, and a 25% reduction in leach field size is no longer needed. On another note, the Infiltrator Chamber model has been changed from the original design plan. It has been brought to our attention that the Infiltrator-Standard Chamber is no longer available. The replacement product is the Infiltrator-Quick4 Standard Chamber. Details of this new chamber are shown in the Infiltrator Detail on sheet 2. We have also included the DEP approval- Modified Certification for General Use for the Quick4 Standard chamber. Enclosed are the following documents for review and approval. 1. (3) Copies of the Revised Septic Design Plan 2. (2) Copies of Pressure Distribution Calculations 3. (2) Copies of Modified Certification for General Use- hfiltrator Systems, Inc. Please contact this office with any questions or concerns. Sincerely, J Thomas Hector Project Engineer ................- NEW ENGLAND EN(.111,11NEERING .13ERVICES PRESSURE DISTRIBUTION DESIGN SPREADSHEET Property Location: 1312 SALEM STREET NORTH ANDOVER,MA October 10,2005 DESIGN FLOW(in gallons/day)? 440 Elevation of the PUMP OFF SWITCH,in feet? 93.4 Elevation of the upper LATERAL,in feet? 97.38 DELIVERY PIPE distance,from pump to manifold,in feet? 21 DELIVERY PIPE diameter,in inches(if not 2"--use 2"min)? 3 Design DISTAL PRESSURE,in feet(if not 2,5)?(hd) 4 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 0.3125 MANIFOLD DIAMETER(if not 2"--use 2"min)? 4 4 TOTAL LENGTH OF MANIFOLD 11 Does MANIFOLD drain to FIELD after dose(yes or no)? no How many LATERALS? 4 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 ( . 3 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? 44 44 44 44 Diameter of each LATERAL,in inches(1.5"min)? 1.5 1.5 1,5 1.5 Elevation of each LATERAL,in feet? 9738 9738 97.38 9738 Number of ORIFICES per lateral 12 12 12 12 Distance from Manifold to closest Orifice,in feet 1.375 1.375 1.375 1.375 ORIFICE SPACING,in feet 3.5 3,5 3.5 3.5 Diameter of ORIFICES,in inches?(D) 0.25 0.25 0.25 0.25 Square feel of leachfield per laterals(can ignore) Maximum number of of In any one lateral 14 Minimum lateral diameter 1,5 RESULTS FRICTION CALCULATIONS(using Hazen Williams friction ft=Ld((3.55Qm/Ch(Dd 12.63)))11.85) PRESSURE CALCULATIONS(using orifice dischage equation Q=11.79 D A 2 hdA.5 Lateral l: Lateral 2: Lateral 3: Lateral 4: LATERAL DISCHAGE(first approximation) 17.69 17.69 17.69 1769 MANIFOLD ORIFICE DISCHARGE 0.00 TOTAL SYSTEM DISCHAGE(first approximation) 70.74 TOTAL DISCHARGE PER LATERAL 17.75 17.75 17.75 17,75 DISCHARGE PER SQUARE FOOT OF LEACHFIELD #DIV/0! #DIV/0! #DIV/0! #DIV/0! ORIFICE MAXIMUM DISCHARGE BY LATERAL 1,49 1.49 1,49 1.49 ORIFICE MINIMUM DISCHARGE BY LATERAL 1.47 1.47 1.47 1.47 ORIFICE%DIFFERENCE DISCHARGE within LATERAL 1.0% 1,0% 1.0%, 1.0% 0.0% MAXIMUM DISCHARGE LATERAL 17,75 MINIMUM DISCHARGE LATERAL 17,75 MAXIMUM DISCHARGE PER SQUARE FOOT #DIV/01 MINIMUM DISCHARGE PER SQUARE FOOT #DIV/0! •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 as percent of maximum square foot in system WEEP HOLE DISCHARGE(usually a 1/4"weep hole) 1.86 weep hole= 0 25 inch VOID VOLUME IN DELIVERY PIPE 7.71 VOID VOLUME IN MANIFOLD 7,18 VOID VOLUME IN EACH LATERAL 4.04 4.04 4.04 4 04 0.00 TOTAL LATERAL VOID VOLUME 16.16 MINIMUM DOSE VOLUME(based on void volume) 80,78 to 161.56 MIN ACTUAL MINIMUM IS BASED ON DAILY DESIGN FLOW (weep hole,usually 1/4",riot counted for dose,effluent is repumped during process and not counted for friction,except as fitting headloss) TOTAL HEAD LOSS IN EACH LATERAL 0.50 0.50 0,50 0,50 MAXIMUM l OTAL LATERAL HEADLOSS IN SYSTEM 0.50 MANIFOLD HEADLOSS(center-fed unless manifold design) 0.03 DELIVERY PIPE HEADLOSS 0,26 w/delivery 3 inch diameter FITTING LOSS(headless'.15) 0.60 add extra head if fittings are more than absolute minimum DISTAL PRESSURE HEAD 4.00 STATIC HEAD(OFF-SWITCH TO HIGH LA I-ERAL/MANIFOLD) 198 HEADLOSS PUMP TO WEEPHOLE(assun;e 3'run) 0.04 PUMP MUST BE ABLE TO PASS SOLIDS AT 72,87 G.P.M 9,41 FEET OF HEAD or After OTIS(network losses=1.3`distal head) 72,87 G.P.M, 13.52 FEET OF HEAD 60 BE EC HVVOOD DRIVE-NORTH A11DOVER, MA 01845-( CFA)686.1768- (888)359-7645- FAX(978)68).,1099 NIEW ENGLAND ENGINEERING SERVICES INC PRESSURE DISTRIBUTION ©ESIGN SPREADSHEET Property Location: 1312 SALEM STREET NORTH ANDOVER,MA October 10,2065 DESIGN FLOW(in gallons/day)? 440 Elevation of the PUMP OFF SWITCH,in feet? 93.4 Elevation of the upper LATERAL,in feet? 97.38 DELIVERY PIPE distance,from pump to manifold,in feet? 21 DELIVERY PIPE diameter,in inches(if not 2"--use 2"min)? 3 Design DISTAL PRESSURE,in feet(if not 2.5)?(hd) 4 IS MANIFOLD CENTER-FED R SYMETRICAL(yes or no)? yes YES How many orifices in the MANIFOLD? ]0215 MANIFOLD ORIFICE diameter,in inches(if not 5/16") 0.3125 MANIFOLD DIAMETER(if not 2"--use 2"min)? 4 TOTAL LENGTH OF MANIFOLD Does MANIFOLD drain to FIELD after dose(yes or no)? Lno How many LATERALS? Pumping chamber weep hole size(usually.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 l: Lateral 2: Lateral 3: Lateral 4: Length of each LATERAL,in feel? 44 44 44 44 Diameter of each LATERAL,in inches(1.5"min)? 1.5 1.5 1.5 1.5 Elevation of each LATERAL,in feel? 97.38 97.38 97.38 97.38 Number of ORIFICES per lateral 12 12 12 12 Distance from Manifold to closest Orifice,in feet 1.375 1.375 1.375 1.375 ORIFICE SPACING,in feet 3.5 3.5 3.5 3.5+ Diameter of ORIFICES,in inches?(D) 0.25 0.25 0.25 0.25. Square feet of leachfield per laterals(can ignore) Maximum number of orifices in any one lateral 14 Minimum lateral diameter 1.5 FRICTION CALCULATIONS(using Hazen Williams friction ft=Ld((3.55Qm/Ch(Dd 12.63)))^1.85) PRESSURE CALCULATIONS(using orifice dischage equation Q=11.79 D 12 hd^.5 Lateral l: Lateral 2: Lateral 3: Lateral 4: LATERAL DISCHAGE(first approximation) 17.69 17.69 17.69 17.69 MANIFOLD ORIFICE DISCHARGE 0.00 TOTAL SYSTEM DISCHAGE(first approximation) 70.74 TOTAL DISCHARGE PER LATERAL 17.75 17.75 17.75 17.75 DISCHARGE PER SQUARE FOOT OF LEACHFIELD #DIV/0! #DIV/0! #DIV/0I #DIV/0! ORIFICE MAXIMUM DISCHARGE BY LATERAL 1.49 1.49 1.49 1.49 ORIFICE MINIMUM DISCHARGE BY LATERAL 1.47 1.47 1.47 1.47 ORIFICE%DIFFERENCE DISCHARGE within LATERAL 1.0% 1.0% 1.0% 1.0% 0.0% MAXIMUM DISCHARGE LATERAL 17.75 MINIMUM DISCHARGE LATERAL 17.75 MAXIMUM DISCHARGE PER SQUARE FOOT #DIV/0! MINIMUM DISCHARGE PER SQUARE FOOT #DIV 10! •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 as percent of maximum square fool in system WEEP HOLE DISCHARGE(usually a 1/4"weep hole) 1.86 weep hole= 0.25 inch VOID VOLUME IN DELIVERY PIPE 7.71 VOID VOLUME IN MANIFOLD 7.18 VOID VOLUME IN EACH LATERAL 4.04 4.04 4.04 4.04 0.00 TOTAL LATERAL VOID VOLUME 16.16 MINIMUM DOSE VOLUME(based on void volume) 80.78 to 161.56 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 0.50 0.50 0,50 0.50 MAXIMUM TOTAL LATERAL HEADLOSS IN SYSTEM 0.50 MANIFOLD HEADLOSS(center-fed unless manifold design) 0.03 DELIVERY PIPE HEADLOSS 0.26 w/delivery 3 inch diameter FITTING LOSS(headloss`.15) 0.60 add extra head if fittings are more than absolute minimum DISTAL PRESSURE HEAD 4.00 STATIC HEAD(OFF-SWITCH TO HIGH LATERAL/MANIFOLD) 3.98 HEADLOSS PUMP TO WEEPHOLE(assume 3'run) 0.04 PUMP MUST BE ABLE TO PASS SOLIDS AT 72.87 G.P.M 9.41 FEET OF HEAD or After OTIS(network losses=1.3'distal head) 72.87 G.P.M. 13.52 FEET OF HEAD 60 BEECHWOOD DRIVE-NORTH ANDOVER, MA 01845-(978)686-1768-(888)359-7645- FAX(978)685-1099 Page I of I DelleChiaie, Pamela From: Dan Ottenheimer[info@millriverconsulting.com] Sent: Friday, September 16, 2005 7:56 AM To: amcbrearty@millrivercon.sulting.com; Lisa Kozel LeVasseur; DelleChiaie, Pamela; Sawyer, Susan Subject: 1312 Salem Street plan review Plan review attached. You'll see the soils are seriously marginal at this site and we do not feel it appropriate to base the design for the SAS in an area where a large section of what is beneath the SAS is unknown. Due to the variable depth to ledge, I would not advocate that this soil testing occur at the time of installation but rather that it is documented prior to final plan approval. Dan Daniel Ottenheirner, President Mill River Consulting, Inc. Septic System Management Services 2 Blackburn Center Gloucester, MA 01930-2259 978-282-0014 or 1-800-377-3044 fax: 978-282-0012 www.iiiilli-ivercotisttltiiig.cotii d,,tno(4),iiiilli-i\iercoiistilting.coti-i 11/22/2005 Commonwealth of Massachusetts ! �, �L.o, City/Town of )\)o v\ Avtickver w For - Application for Local Upgra e4p�' il TOWN OF NOA",T`H ANDt:"tVf!°R <W HEALTH DEPARTltatl.:l1l°f° 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 Gay Neilson _ only the tab key Name to move your 1312 Salem Street cursor-do not Street Address use the return key. North Andover MA 01845 QCity/Town State Zip Code 2. Owner Name and Address (if different from above): same as above rerwn 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) Z Conventional ❑ Other(describe below): Current residential sewage disposal system is in failure. Form 9A Second LUA-1312 Salem Street North Andover•rev.5102 Application for Local Upgrade Approval° Page 1 of 4 Commonwealth of Massachusetts Cityrrown of Mc,4k AAJC>\Ie-4- 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: Unknown Design flow of existing system: gpd Design flow of proposed upgraded system 440 gpd 440 Design flow of facility: 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: Replacement of leaching facility and components. 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 property line from 10 feet required by Title 5, Section 15.211(1)to 3 feet. 2 Reduction in overdig from 5 feet required by Title 5, Section 15.255(5) to 3 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 Form 9A Second LUA-1312 Salem Street North Andover•rev.5/02 Application for Local Upgrade Approval* Page 2 of 4 Commonwealth of Massachusetts City/Town of /vor4� , AvCV ode r- 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 6/8/05 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. Form 9A Second LUA-1312 Salem Street North Andover•rev.5/02 Application for Local Upgrade Approval* Page 3 of 4 Commonwealth of Massachusetts City/Town of A)or� \ Andover Form 9A ® Application for Local Upgrade Approval 4M 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: No available system in the vacinity. 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." Cc � 11/17/05 Facilit wner's Signature J Date Benjamin C. Osgood, Jr., P.E. (Agent for owner) New England Engineering Services 11/17/05 Name of Preparer Date 60 Beechwood Drive North Andover Preparer's address City/Town MA 01810 978-686-1768 State/ZIP Code Telephone Form 9A Second LUA-1312 Salem Street North Andover•rev.5/02 Application for Local Upgrade Approval* Page 4 of 4