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HomeMy WebLinkAboutMiscellaneous - 250 CLARK STREET 10/23/2015 (3) i l North Andover Health Department Community Development Division April 18, 2013 Flight Landata Inc. a wholly-owned subsidiary of KeyW Corporation Attention: Scott Stetson 250 Clark Street North Andover, MA 01845 RE: Re: Subsurface Sewage Disposal System Plan for 250 Clark Street(Map 75,Lot F) 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 Williams & Sparages LLC, dated February 26, 2013, last revised April 16, 2013, received on April 17, 2013. The design has been approved for use in the construction of on-site septic system designed for office/warehouse space at 994 gpd. This system is shared by two buildings. This plan is good for 3-years from the date of approval. During this time, a licensed septic system installer must obtain a permit and complete this work, and a Certificate of Compliance be endorsed by the installer, designer and the Town of North Andover. In the event an imminent health problem such as sewage backup into the dwelling is occurring,the North Andover Board of Health may reduce the time period for which this plan is valid. 1. 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)). 2. There is an existing subsurface disposal system servicing the existing building. The tank shall be properly abandoned; either removed from site or crushed and filled with Page 1 of 2 North Andover Health Department, 1600 Osgood Street, Building 20, Suite 2035, North. Andover, MA 01845 Phone: 978.688.9540 lax: 978.688.8476 250 Clark Street April 18, 2013 sand. If the abandoned field is to be removed from the site; it must be disposed of in a proper area per state rules. 3. Note that there shall be a benchmark set within 50—75 feet of the facility that shall not be disturbed during construction. 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, S�san Y. Sawyer EHS/RS ctc Public Health P 't eictor cc: Williams & Sparages Attorney Jill Mann file ........................................ ................ ......................- ----------------------- ----------- ................................................. Page 2 of 2 North Andover Health Department, 1.600 Osgood Street, Suite 2035, North Andover, MA 01845 Phone: 978.688.9540 Fax: 978.688.8476 North Andover Health Department Community Development Division March 19, 2013 Chris Sparages,P.E. Williams & Sparages 191 South Main Street Middleton,MA 01949 Re: Subsurface Sewage Disposal System Plan for 250 Clark Street,Map 75,Lot F Dear Mr. Sparages: The proposed wastewater system design plan for the above site dated February 26, 2013 and received on March 14,2013 has been reviewed. Unfortunately,the plan cannot be approved until the following items are corrected. The specific section in Title 5: 310 CMR 15.000, or North Andover regulation that is not met by this design follows each item. Sheet 1 & Sheet 2 1. It is unclear on the site plan if property lines exist within or beyond the "Proposed lease area expansion". Please provide a note on the plan or use the locus map to indicate the property lines. Please provide names of abutters from the most recent tax map if needed (NA 3.2). 2. On sheet 1 of 4,the reserve area proposed(1792 sf) does not meet the area requirements (1876 sf)based on the calculations provided. 3. On sheet 2 of 4,please provide an easement to conduct finish grading in the right of way of Clark Street or provide documentation that will prove why an easement is not required (3 10 CMR 220(4)(b)). 4. On sheet 2 of 4,please indicate the location of the existing water service for the existing building and the location of the proposed water service for the proposed building (3 10 CMR 15.220(4)(m)). 5. On sheet 2 of 4,please depict the limit of the 5' overdig on the site plan. 6. On sheet 2 of 4,the ESHGWT indicated is 132.2' but the remainder of the plan indicates 132.4' as the ESHGWT. Please modify accordingly. 7. On sheet 2 of 4,the breakout elevation of 137.5 is not meet within 15 feet of the proposed leach field. Please revise the finish grading to meet the breakout elevation (3 10 CMR 15.255(2)). Page 1 of 3 North Andover Health Department, 1600 Osgood Street, Suite 2035, Fax: 978.688.8476 1 orth Andover, MA 01845 Phone: 978.688.9540 Sheet 3 8. On sheet 3 of 4,please indicate the scale of the system profile and section A-A (NA 3.2). 9. On sheet 3 of 4,please indicate the benchmark to be set, shall be in a location that will not be disturbed during construction and within 50-75 feet of the facility(3 10 CMR 15.220(4)(q)). 10. On sheet 3 of 4,the profile indicates the inlet and outlet inverts of the septic tank and pump chamber are below the ESHWT elevation of 132.4'. Please raise the inverts of the tanks to meet 310 CMR 15.227(5). 11. Please indicate the length of each building sewer line for the existing building and the proposed building. Also please provide the proposed outlet invert from the proposed building to the sewer manhole in order to confirm the minimum slope requirements are being met. Please depict this in the system profile view on sheet 3. 12. On sheet 3 of 4,the buoyancy calculations for the septic tank and pump chamber do not have the same tank bottom elevations as indicated in the system profile view. Please modify accordingly. Sheet 4 13. On sheet 4 of 4, it appears the proposed septic tank,does not meet the multi-compartment requirements. We calculate 2722 gallons below the outlet invert as the total tank capacity. Based on the multi-compartment requirements a 48 hour storage capacity (1988 gallons) is required in the first compartment and a 24 hour storage capacity(994 gallons) is required in the second compartment(3 10 CMR 15.224)). 14. On sheet 4 of 4,please indicate the baffle wall is required in the septic tank(3 10 CMR 15.223(1)(b)). 15. On sheet 4 of 4,please indicate the depth of the inlet and outlet tees so it is clear to the installer the required depth. On sheet 3 it is noted that the tees shall be installed in accordance with Title 5 but we would prefer the designer to indicate this on the plan instead of the installer interrupting this section of the regulations. 16. On sheet 4 of 4,please provide a note to indicate the septic tank and pump chamber shall be made watertight(3 10 CMR 15.221(1)). 17. On sheet 4 of 4,the emergency storage capacity in the pump chamber does not meet the required capacity of 994 gallons, 945+/- gallons is indicated(3 10 CMR 15.231(2)). General 18. Please provide a note about the required maintenance for the effluent filter (3 10 CMR 15.227(7)). 19. Please provide notes to indicate the distribution box outlets are all at the same elevation and are laid level for the first 2 feet(3 10 CMR 15.232(3)(b-c)). 20. Please provide a note to indicate the pumps and alarm shall be on separate circuits(3 10 CMR 15.231(9)). 21. Please provide documentation to prove that the proposed SDR 26 force main pipe is equivalent to SCH 40 pipe (NA 3.2). Page 2 of 3 North Andover Health Department, 1600 Osgood Street, Suite 2035 North Andover, MA 01845 Phone: 978.688.9540 Fax: 978.688.8476 Although not a reason for disapproval but you may wish to consider enlarging the end segment of the 2" force main pipe to a 4"pipe prior to the distribution box to reduce the velocity. Please feel free to contact the office with any questions you may have. We look forward to working with you to obtain a wastewater treatment and dispersal system which will be in compliance with all regulations and assure protection of public health and the environment of North Andover. Sincerely, /-Susan Y. S wyer, HS/RS Public Health Director cc: KEYW Corporation(Flight Landata, Inc.) File Page 3 of 3 North Andover Health Department, 1600 Osgood Street, Suite 2035 North Andover, MA 01845 Phone: 978.688.9540 Fax: 978.688.8476 f Project No. NAND-0020 April 5,2013 North Andover Health Department WILLIAMS 1600 Osgood Street,Suite 2035 & SPARAGES North Andover,MA 01845 Attn:Susan Y. Sawyer,Public Health Director Subject: Response to Technical Review of S AF)R 00 2013 Subsurface Sewage Disposal System Plan °w'OvuN OF NR"q"q•°I ANDOVER 250 Clark Street(Flight Landata,Inc.) HEALTH DEPARTMENT Assessor's Map 75,Lot F Dear Susan, The purpose of this letter is to respond to technical review comments that we have received in a letter from your office dated March 19,2013 for the proposed septic system design for the expansion of the Flight Landata facility located at 250 Clark Street. The comments provided by your office are shown in italics below,and,our responses are in the bold text that follows. Sheet 1 &Sheet 2 1. It is unclear on the site plan if properh/lines exist within or beyond the "Proposed lease area expansion". Please provide a note on the plan or use the locus map to indicate the properly/lines. Please provide names of abutters fi-om the most recent tax map if needed(NA 3.2) The property is owned entirely by the City of Lawrence Airport Commission and is quite a large parcel that covers multiple assessors'maps. We have attached a copy of a sketch plan that we submitted to the assessor's office in order for them to generate an abutter's list for our Notice of Intent filing with the Conservation Commission. We have also attached the abutter's list used in said filing for your use. 2. On sheet 1 of 4, the reserve area proposed(1,792)does not meet the area requirements (1876 sf) based on the calculations provided. We have revised the dimensions of the reserve area to meet the area requirement. 11 MI M,sheet 2 of 4,please provide an easement to conduct finish grading in the right of way of Clark Street or provide documentation that will prove why an easement is not required(310 CMR 220(4)(b)). As Clark Street is a public way,it would not be possible to obtain an easement to grade into the right of way,however,it is our position that based on the current condition of Clark Street,an easement is not required. As you can see on the plan,the traveled way of Clark Street has been blocked off and although there are remnants of pavement in the layout,it has been covered with vegetation and is no longer in use by the public. If,in the future,the Town decided to reopen that portion of Clark Street to the public,the grading we propose is located on the shoulder of the travelled way and would not interfere with the use of the way. Please keep in mind that the layout of Clark Street ends just a few feet beyond the septic system;it is a dead end. 191 South Main Street, Suite 103 Middleton, MA 01949 Tel: (978) 539-8088 Fax: (978) 767-8579 ` Response Lo Technical Review of Septic System 25O Clark Street North Andover, K4A 4. On sheet 2of 4,please indicate the location of the existing water servicefor the existing building and the / location of the proposed water servicefor the proposed building (310 CMR 15.220(4)(111) . � Wa have added the locations of the existing and proposed water services bn the revised plans. The existing water service is located on the northwest side of the building and the proposed service w1llbelu�atedootbeaonthweotsldeofthcboildboQ. --' � n sheet 2of4, please depict the limit nf the 5'nneoGron the site plan. ^ We have added the 5'mverdiobm the revised plan. 6. On sheet 2nf4, the ESHGN/I indicated/o132.2'hnt the remainder nf the plan indicates 132.4'nathe � S5HGVff. Please nnndi6/accordingly. We have revised the text describing the proposed septic system active area to read 132.4 on the revised plan. L-~ 7 On sheet 2of 4, the bmukont elevation of 13l5 is not met within 25 feet of the proposed leach field. P&nao revise 8mfiniuh grading to meet the breakout elevation (3I0 [MK15.2J5(2)). �0" As you know the westerly side of the active area meets the 10'breakout requirement by using the retaining wall. Wu have revised the remaining grading(1J7 contour) pf the system tn meet the 15' breakout requirement. Sheet 3 K. On sheet 3 of 4, please indicate the scale of the system profile and section A-A (NA 3.2). V � We have added the scale of the vertical scale of the system profile in the title block as well as on � the drawing. � On sheet 3of4,please indicate the benchmark to beout, ahu//be inu location that will not be disturbed during | mnu�mcdonun��������t��o�cU/�B20O�15.220��., We have revised item no.3iothe plan notes section mo sheet 3mf4tm that effect. 10. Ou sheet 3 »fA the profile indicates the inlet and outlet inverts nf the septic tank and pump chamber are below the ESHWT elevation of 232.4'. Please raise the inverts nf the tanks bo meet 310CMB2J.227(5). ` \ We have reduced the cover over the pipes e and exiting the proposed sewer manhole ao All, well aa the slope of the pipes twu one (1��) percent into the septic tank in order toraise reducing theinverts tothe maximum extent practicable above the ESfGWT. Because wf the reduced amount mf cover ne are specifying that the pipes be insulated with rigid foam aa shown*othe plans. 2I. Please indicate the length of each building sewer/bnx/or the existing building and the proposed building. Also y/eoxe provide the proposed outlet invertftom the proposed building to the sewer manhole in order to confirm the minimum slope requirements are being met Please depict this/n the system profile view nnsheet 3. ` Response to Technical Review uf Septic System 250 Clark Street North Andover, N1A . We have added the leu�o�hnB��a��li�������/�9m�mmedb�����^ W� _ _ have also added the proposed outlet invert from the proposed building to the sewer manhole am well ay adding to the system profile no sheet 3, ' 22. On sheet 3 of 4, the buoyancy calculationsfor the septic tank and pump chamber do not have the same tank botbo/no/eVxdomanaindYou/ed/ntheoyetonopro�/on/om. �kmx�mod8�occord/n�/y. ` ',, " See revised calculations. Sheet 4 13. On sheet 4of4, /t appears the proposed septic tank does not meet the multi-compartment requirements. We calculate 2,722 gallons below the outlet invert as the total tank capacity. Based on tile,nu/d-compnrbnont requirements o48 hour storage capacity(1988 gallons)iorequired intheBrut compartment and n24hour ° storage capacity (994 gallons)/a required/o the second compartment/310C&0< 15.224U. We have increased the septic tank holding capacity to a 3,000 gallon tank to provide for the possible future office conversion. k~. 24. On sheet 4o/4,please indicate the baffle wall io required in the septic tank/320(J0825.223(2)(bU. We have revised the drawing to show that the baffle wall isrequired. 15. On sheet 4of4,please indicate the depth nf the inlet and outlet tees an/tiy clear bo the installer the required depth. On sheet J it is noted that the tees ahnD be installed in accordance with TYdx 5 but we would prefer the designer to indicate this on the plan instead nf the installer interrupting /5id this section nf the regulations. � We have revised the detail to specify the depth the tees below the liquid level. l6. On sheet 4of4,please provide x note bo indicate the sc�dcb/nk and pun�pchxm�rshall bc made motor6oh/ 820(]MK25.221(1U. We have revised the details tm specify watertight construction. 17. On sheet 4of 4, the emergency storage capacity in the/ unnp chamber does not meet the required capacity of 994 gallons, 945±gallons is indicated B10[7ND 15.232(2) . ° We have increased the volume mf 24 hour emergency storage to1,O00gallons. General 28. Please provide n note about the required mu/ntennmcxhbrthe We have added u note tm sheet 3mf4 requiring annual inspection and cleaning. � 29' Please provide notes to indicate the distribution box outlets are all the same elevation and are laid leve/forthe first 26ct (310[]kOl15.232(3)0+cU. We have added a note to sheet 3 of 4 requiring all outlets to be installed at the same elevation. . Response bz Technical Review of Septic System 250 Clark Street North Andover, K4A ]here im already a note on system profile requiring the first 2'ofPVC tohclevel. 20. Please provide a note to indicate the pumps and alarm shall be on separate circuits (310 CMR 15.231 (9)). � We have added a note tm sheet 3mf 4 requiring all outlets tmbe installed at the same elevation. 22. Please provide documentation to prove that the proposed SDR 26force main pipe is equivalent toSCH40pipe (NA 3.2). We have attached documentation wfdesign properties wf pipe from u manufacturer's catalog. Ae you can see the properties ofSDR 26 and 8CfI40 PVC are very similar. SDIX26 has a slightly thinner wall thickness which makes it more flexible and easier to install. For example the wall thickness of 2"SCH 40 is 0.154 inches while the wall thickness of 2" SDR 26 ieO,091inches. The inside diameter of the 2"SCH 40 is 2.067 inches and the inside diameter of 2"SDR 26 is 2.193 inches.The velocity loss at 40 gallons per minute for the 2"SCH 40 is 3.9D feet while the loss for the 2"GDBi26io3.46 feet and the difference io negligible vvbeo calculating the Total Dynamic Head for the pump design. Although not a reasonfor disapproval but you may wish to consider enlarging the end segment o/the 2"/onnmain pipe too4"pipe prior bothe distribution box fo reduce the velocity. Wc have added a4'long section mf4"PVC pipe at0hecndof the 2"force main tm help dissipate the velocity. We trust that you will find that the responses above adequately address the comments made from the � technical review and will allow you tn approve the proposed expansion. 8 you have any questions, � please do not hesitate to contact zoedirectly. Very � truly Chris Sparages,P.E. � U Principal Enclosures co: Attorney Jill Mann Scott Stetson/}Q5YWCorporation � Product Specifications ° AIRVEX PVC SDR Series: Pressure Rated Pipe _ Application: Corrosion resistant pressure pipe, IPS sizes 3/4"through 24",for use at temperatures up to and including 140 E Pressure rating(100 psi to 200 psi)varies with SDR Series and temperature shown on page 2 of this specification,and as stated in Georg Fischer Harvel LLC engineering bulletin(Product Bulletin 112/401).Generally resistant to most acids,bases,salts,aliphatic solutions,oxidants, and halogens. Chemical resistance data is available and should be referenced for proper material selection.Pipe exhibits excellent physical properties and flammability characteristics(independently tested flame and smoke characteristics-ULC,1993).Typical applications include:potable water systems,water and wastewater treatment,irrigation,agricultural,high purity applications,chemical processing,and other industrial applications involving corrosive fluid transfer. Scope: This specification outlines minimum manufacturing requirements for Polyvinyl Chloride(PVC)SDR Series iron pipe size(IPS)pressure CL pipe.This pipe is intended for use in piping systems where the fluid conveyed does not exceed 140E This pipe meets and or exceeds the industry standards and requirements as set forth by the American Society for Rsting and Materials(ASTM)and the National Sanitation Foundation(NSF). PVC Materials: The material used in the manufacture of the pipe shall be domestically produced rigid polyvinyl chloride(PVC)compound,'Type I Grade D. 11 with a Cell Classification of 12454 as defined in ASTM D1784,trade name designation H707 PVC.This compound shall be white or gray in color as specified,and shall be approved by NSF for use with potable water. Dimensions: PVC SDR Series pipe shall be manufactured in strict accordance to the requirements of ASTM D2241 for physical dimensions and tolerances.Each production run of pipe manufactured in compliance to this standard,shall also meet or exceed the test requirements for materials,workmanship,burst pressure,impact resistance,flattening,and extrusion quality as defined in ASTM D2241.This pipe shall be produced in IPS diameters to either:SDR 21 (3/4"-8"sizes 200 psi @ 73'F);SDR 26(1"-24"sizes 160 psi @ 73°F);or SDR 41 (18"-24"100 psi @ 73 7)F)as specified.All belled end pipe shall have tapered sockets to create an interference type fit,which shall meet or exceed ® dimensional requirements and the minimum socket length for pressure-type belled sockets as defined in ASTM D2672. Marking: Product marking shall meet the requirements of ASTM D2241 and shall include:the manufacturers name(or the manufacturers trademark when privately labeled);the nominal pipe size;the outside diameter system;the material designation code;the applicable Standard thermoplastic pipe Dimension Ratio designation code(SDR number)and the corresponding pressure rating in psi for water @ 737;the ASTM designation D2241;and the independent laboratory's'seal of approval for potable water usage. Sample Specification: All PVC SDR Series pipe shall be manufactured from a'Iype I,Grade I Polyvinyl Chloride(PVC)compound with a Cell Classification of 12454 per ASTM D1784.The pipe shall be manufactured in strict compliance to ASTM D2241,consistently meeting and/or exceeding the Quality Assurance test requirements of this standard with regard to pressure rating,material,workmanship,burst pressure, flattening, impact resistance,and extrusion quality.The pipe shall be manufactured in the USA,using domestic materials,by an ISO 9001 certified manufacturer.Standard lengths of pipe sizes 10"and larger shall be beveled each end by the pipe manufacturer.All pipe shall be stored indoors after production at the manufacturing site until shipped from factory.This pipe shall easy the National Sanitation Foundation (NSF)seal of approval for potable water applications.All pipe shall be manufactured by Georg Fischer Harvel LLC. ©2012 Georg Fischer Harvel LLC • 300 Kuebler Road, Easton, PA 18040 • 610-252-7355 • Fax: 610-253-4436 • Harvel.com Product Specifications HARVEI: PVC SDR Series: Pressure Rated Pipe SDR 13.5 -Max W.P.315 PSI*(all sizes) Nom.Pipe Average Min. Nom. The pressure ratings given are De-Rating Factor Size(in.) O.D. I.D. Wall Wt./Ft. for water,non-shock,@ 73°F Operating De-Rating 1/2 0.840 0.696 0.062 0.110 The following temperature Temp(°F) Factor de-rating factors are to be 73 1.00 SDR 21 - Max WP.200 PSI*(all sizes) applied to the working pressure 80 0.88 ratings(W.P.)listed when 90 0.75 Nom.Pipe Average Min. Nom. operating at elevated 100 0.62 Size(in.) O.D. I.D. Wall Wt./Ft. temperatures.Multiply the 110 0.51 3/4 1.050 0.910 0.060 0.136 working pressure rating of the 120 0.40 1 1.315 1.169 0.063 0.180 selected pipe at 73°F,b the 130 0.3 I P P Y 140 0.22 1-1/4 1.660 1.482 0,079 0.278 appropriate de-rating factor to 1-1/2 1.900 1.700 0.090 0.358 C determine the maximum working pressure rating of the pipe at 2 2.375 2.129 0.113 0.550 2-1/2 2.875 2.581 0.137 0.797 the elevated temperature chosen. 3 3.500 3.146 0.167 1.168 EX: SDR 21 @ 120'F = ? y 3-1/2 4.000 3.597 0.190 1.520 200 psi x 0.40 = 80 psi max.@ 120'F 4 4.500 4.046 0.214 1.927 . 5 5.563 5.001 0.265 2.948 THE MAXIMUM SERVICE TEMPERATURE FOR PVC IS 140'F. f0 0 6 6.625 5.955 0.316 4.185 ' 8 8.625 7.756 0.410 7.069 Solvent cemented joints should be utilized when working at or vii near maximum temperatures.GF Harvel does not recommend 17 SDR 26 - Max W.R 160 PSI*(all sizes) the use of PVC for threaded connections at temperatures above 'p Nom.Pipe Average Min. Nom. 1107;F;use flanged joints,unions,or roll grooved couplings Size(in,) O.D. I.D. Wall Wt./Ft. where disassembly is necessary at elevated temperatures. 1 1.315 1.175 0.060 0.173 Threading of SDR Series pipe is not a recommended practice 1-1/4 1.660 1.512 0.064 0.233 due to insufficient wall thickness. 1-1/2 1.900 1.734 0.073 0.300 2 2.375 2.173 0.091 0.456 Chemical resistance data should be referenced for proper mate- 2.1/2 2.875 2.635 0.110 0.657 rial selection and possible de-rating when working with fluids 3 3.500 3.210 0.135 0.966 other than water.Refer to GF Harvel 112/401 Product Bulletin 3-1/2 4.000 3.672 0.154 1.250 for chemical resistance and installation data. 4 4.500 4.134 0.173 1.569 5 5.563 5.108 0.214 2.411 6 6.625 6.084 0.255 3.414 8 8.625 7.921 0.332 5.784 10 10.750 9.874 0.413 8.971 12 12.750 11.711 0.490 12.620 14 14.000 12.860 0.538 15.205 16 16.000 14.696 0.615 19.877 18 18.000 16.533 0.692 25.156 20 20.000 18.370 0.769 31.057 24 24,000 22.043 0.923 44.744 SDR 41 - Max W.P. 100 PSI*(all sizes) Nom.Pipe Average Min. Nom. Size(in.) O.D. I.D. Wall Wt./Ft. 18 18.000 17.061 0.439 16.348 20 20.000 18.956 0.488 20.196 24 24.000 22.748 0.585 29.064 *PRESSURE RATINGS GIVEN ARE FOR WATER, NON-SHOCK,@ 73°F ASTM STANDARD D1784 MATERIAL EQUIVALENTS: Cell Classification 12454 = PVC'I ipe I Grade I = PVC 1120 PIPE SIZES SHOWN ARE MANUFACTURED IN STRICT COMPLIANCE WITH ASTM D1785 ©2012 Georg Fischer Harvel LLC • 300 Kuebler Road, Easton, PA 18040 • 610-252-7355 Fax:610-253-4436 Harvel.com Blackburn, Lisa From: Grant, Michele f Sent: Friday, February 01, 2013 11:38 AM To: 'Isaac Rowe'; 'dano @millriverconsulting.com' Cc: Sawyer, Susan; Blackburn, Lisa Subject: 466 Sutton Hi Issac, FYI 466 Sutton,AKA 250 Clark Street, has had some deep holes done already, however they were not witnessed by us.So, it will be a fresh start for them. Thanks Michele E.Grant Public Health Agent Town of North Andover 1600 Osgood St I Suite 2035 North Andover,MA 01845 Phone 978.688.9540 Fax 978.688.8476 Email mgrant @townofnorthandover.com Web www.TownofNorthAndover.com Please note the Massachusetts Secretary of State's office has determined that most emails to and from municipal offices and officials are public records.For .....�.. more information please refer to:hftra://www.sec.state.ma.us/pre/preidx.litm. Please consider the environment before printing this email. 1 � b�TTLED.74g6 � North Andover Health Department Community Development Division " April t 1, 2013 Thomas Urbelis Urbelis, Fieldsteel & Bailin, LLP 155 Federal Street Boston, MA 02110-1727 Re: 250 Clark Street—Airport property - question regarding proposed septic system Dear Attorney Urbelis, This package is being sent to you in regards to the question I proposed to you over the phone on Thursday. The issue is over a proposed septic system location and the area of an unused portion of Clark Street, North Andover. Please refer to the letter included; item#3. Simply put,whether or not the grading of the side slopes of the septic system requires an easement into the right of way. The engineer, Chris Sparages responded to this question in the letter and the Health Department is seeking your opinion on whether to accept the explanation. In addition, please note that this plan is for septic only; however, it appears that the new building's envelope may also extend into the street right of way. Therefore, it is also important to know not only if grading of the septic system can occur in the right of way, but whether or not a portion of the structure could also be in this area. I am seeking also assistance from the DPW as well, to see if there is any precedence for this type of justification to use an old part of a town road that by all appearances is abandoned. If I receive any information that I feel important to your review I will forward it via email. Thank you. Sincerely, r' �'usan Y. Sawyer, HS/RS Public Health Director Cc: Judy Tymon,Town Planner Curt Bellavance, Com. Dev. Director Encl; 250 Clark St.Title 5 Proof Plan, Pages 1 and 2 Areal photo Letter from Williams and Sparages, April 5,2013 1600 Osgood Street,Bldg 20 Unit 2035,North Andover,Massachusetts 01845 Phone 978.688.9540 Fax 978.688.8476 Web www.townofnorthandover.com fff � A a is c 1 f t i i o+ ( 02 nN i nF yyC 'J. j Uy h S c � i 4 i i N � ' f : I 1 i f'ym FE I; it3 '3 O a D a i � oDoi=z• X= ZF yLl o� :6 COz <= '�Y i C F i L? F n ' 1 4P 1 i s 1 3 � 1 I I 1 � NI 11 < 4 1 f •� 1 �4 r I i i tilsR is Rw; S j e�R q :6 TOWN OF NORTH ANDOVER Office of COMMUNITY DEVELOPMENT AND SERVICES HEALTH DEPARTMENT 1600 OSGOOD STREET; SUITE 2035 NORTH ANDOVER, MASSACHUSETTS 01845 I i Susan Y.Sawyer,REHS/RS 978.688.9540—Phone Public Health Director 978.688.8476—FAX E-MAIL: heal thdent@townofnorthandover com WESSITE:htt :HNvww.townofiiorthandovet com n SEPTIC PLAN SUBMITTAL FORM Date of Submission: "iA tiµ� �`ul � Site Location: 250 Clark Street `s°a Engineer: Williams & Sparages LLC New Plans? Yes X $225/Plan Check# (includes 1st submission and one re- review only) Revised Plans?Yes $75/Plan Check# Site Evaluation Forms Included? Yes X No Local Upgrade Form Included? Yes No N/A Telephone#: (978) 539-8088 Fax#: (978) 767-8579 E-mail: pblaisdell @wsengineers.com Homeowner Name: City of Lawrence c/o Lawrence Airport Commmission;Leasehold Owner, Michael Florence OFFICE USE ONLY When the submission is complete (including check): ➢ Date stamp plans and letter Complete and attach Receipt Copy File; Forward to Consultant �' Enter on Log Sheet and Database 1 COMMONWEALTH OF MASSACHUSETTS EXECUTIVE OFFICE OF ENERGY& ENVIRONMENTAL AFFAIRS ' DEPARTMENT OF ENVIRONMENTAL PROTECTION ONE WINTER STREET, BOSTON, MA 02108 617-292-5500 s f , DEVAL L.PATRICK IAN A.BOWLES Governor t ',rth + ' w Secretary �bSC9 Pu� TIMOTHY P.MURRAY LAURIE BURT Lieutenant Governor ll``�r1 F�� ��1 �i f P l`P�Y'l'b y Cornnrissioner MODIFIED CERTIFICATION FOR GENERAL USE Pursuant to Title 5, 310 CMR 15.000 Name and Address of Applicant: CULTEC, Inc. P.O. Box 280 878 Federal Road Brookfield, CT 06804 Trade name of technology and model: CULTEC Chamber models: Field Drain Contactors C4; Contactor EZ-24, 100, and 125; and Recharger 180, 280, and 330XL(hereinafter the "System"). Schematic drawings of each model are attached and made a part of this Certification. Transmittal Number: W037676 Date of Issuance: December 17, 2003, revised April 18, 2006,revised July 24,2006, July 19, 2007,November 2, 2007, August 29, 2008,Modified February 22, 2010 Authority for Issuance Pursuant to Title 5 of the State Environmental Code, 310 CMR 15.000,the Department of Environmental Protection hereby issues this Certification to: CULTEC,Inc.,P.O. Box 280, 878 Federal Road, Brookfield, CT 06804 (hereinafter"the Company"), for General Use of the System described herein. Sale and use of the System are conditioned on and subject to compliance by the Company and the System owner with the terms and conditions set forth below. Any noncompliance with the terms or conditions of this Certification constitutes a violation of 310 CMR 15.000. February 22, 2010 Glenn Haas,Acting Assistant Commissioner Date Bureau of Resource Protection. This information is available in alternate format.Call Donald M.Gomes,ADA Coordinator at 617-556-1057.TDD Service-1-800-298-2207. MassDEP on the World Wide Web: http://www.mass.gov/dep Q* Printed on Recycled Paper CULTEC Modified Certification for General Use Page 2 of 7 I. Purpose 1. The purpose of this Certification is to allow use of the System in Massachusetts, on a General Use basis. 2. With the necessary permits and approvals required by 310 CMR 15.000, this Certification authorizes the use of the System in Massachusetts. 3. The System may be installed on all facilities where a system in compliance with 310 CMR 15.000 exists on site or could be built and for which a site evaluation in compliance with 310 CMR 15.000 has been approved by the local approving authority, or by DEP if DEP approval is required by 310 CMR 15.000. II. Design Standards 1. The models listed in Table 1 are covered under this Certification. Table 1. Chamber Dimensions Dimensions Invert Model* W x L x H Height Inches Inches Field Drain Contactor C4 48 x 96* x 8.5 3 Contactor EZ-24 16 x 96* x 12.5 6 Contactor 100 36 x 89* x 12.5 6 Contactor 125 30 x 75* x 18 12 Rechar er 180 36 x 76* x 20.5 14 Rechar er 280 1 47 x 84* x26.5 20.5 Rechar er 330XL 1 52 84* x 30.5 24 *Denotes Cultec chamber installed length 2. The System is an open-bottom leaching unit molded from high density, high molecular weight polyethylene (HDPE) with a 3.5 to 4.5 ounce non-woven geosynthetic filter fabric cover (CULTEC No. 410TM). It can be installed without aggregate or distribution pipe as an absorption trench in accordance with the requirements in 310 CMR 15.251 or as a bed or field in accordance with the requirements in 310 CMR 15.252. 3. The use of aggregate as specified in 310 CMR 15.247 is not necessary with the System when installed as a trench, bed or field. When designed with aggregate in accordance with 310 CMR 15.253, the System shall be designed in accordance with Section 11 item 10. *All models also include a Heavy Duty(HD)model for H2O loading. CULTEC Modified Certification for General Use Page 3 of 7 4. The minimum separation between any two trenches shall be as specified in 310 CMR 15.251. 5. The requirement that the Chamber installed in trench configuration as specified in 310 CMR 15.253(6) be provided with inlets at intervals not to exceed 20 feet is not applicable to the System. In accordance with 310 CMR 15.240 (13) a minimum of one inspection inlet shall be installed per system. The inlet shall be capped with a screw type cap and accessible to within three inches of finish grade. 6. For new construction, the applicant can size the System in a trench configuration without aggregate, using the effective leaching areas presented in Table 2. No System shall be designed and constructed with a soil absorption system area of less than 400 square feet of effective area. Table 2. Effective Leaching Area for Trench Configuration for New Construction And Remedial Sites Effective Effective Model Leaching Leaching Area Area SF/LF SF/LF Field Drain Contactor C4 NA 3.54 Contactor EZ-24 3.9 NA Contactor 100 6.7 NA Contactor 125 7.5 NA Rechar er 180 8.9 NA Rechar er 280 NA 6.44 Rechar er 330XL NA 74 1. Effective April 21,2006, 310 CMR 15.251(1)(b)maximum trench width is 3 feet. 2. Effective leaching area is equal to 1.67 (bottom width+(2x invert height)) for Systems 3 feet or less in width. 3. Effective leaching area is equal to 1.00 (3 +(2x invert height)) for Systems with a width greater then 3 feet. 4. The maximum trench width allowed to calculate effective leaching area is 3 feet. 7. Systems installed on remedial sites shall be allowed to utilize the effective leaching areas presented in Table 2 above or additional reductions in soil absorption leaching area approved by the approving authority in accordance with 310 CMR 15.284. In no instance shall the reduction in the soil absorption system required in 310 CMR 15.242 exceed the maximum reduction allowed for alternative systems approved in accordance with 310 CMR 15.284. CULTEC Modified Certification for General Use Page 4 of 7 8. In accordance with 310 CMR 15.240 (6) absorption trenches should be used whenever possible. When the System is installed for new construction without aggregate in a bed or field configuration, as defined in 310 CMR 15.252, the System shall be designed using the effective leaching area for the bottom width presented in Table 3 No system shall be designed and constructed with a leaching area of less than 400 square feet of effective area. Table 3:. Effective Leaching Area for Bed or Field Configuration Effective Model Leaching' Area SF/LF Field Drain Contactor C4 6.7 Contactor EZ-24 2.2 Contactor 100 5.0 Contactor 125 4.2 Rechar er 180 5.0 Recharger 280 1 6.5 Recharger 330 1 7.2 1. Effective Leaching area is equal to 1.67 times bottom width only. 9. The System, when installed in a bed or field configuration without aggregate on remedial sites, shall utilize the effective leaching areas presented in Table 3 above or additional reductions in soil absorption system area approved by the approving authority in accordance with 310 CMR 15.284. In no instance shall the reduction in the soil absorption system area required in 310 CMR 15.242 exceed the maximum reduction allowed for alternative systems approved in accordance with 310 CMR 15.284. 10. The System, when installed as specified in 310 CMR 15.253: Pits, Galleries, or Chambers, shall have an aggregate base and/or be surrounded by aggregate and shall be sized as specified in 310 CMR 15.253 (1) (a) and (b), effective leaching area is equal to 1.0 times a conventional aggregate system. Effective depth can be increased up to two feet with the corresponding addition of up to 21 inches of base aggregate for the Field Drain Contactors, up to 18 inches with the Contactor 100, up to 12 inches for the Contactor 125, up to 8 inches with the Recharger 180, and up to 3.5 inches with the Recharger 280. No additional aggregate base is required for the Recharger 330. Bottom width can be increased by two to eight SF/LF with the corresponding addition of one to four feet of aggregate per side. CULTEC Modified Certification for Genera(Use Page 5 of 7 11. When the System is installed as specified in 310 CMR 15.255: Construction in Fill, the finished 15 foot horizontal separation distance, item (2), shall be measured from the top of the chamber. I11. General Conditions 1. The provisions of 310 CMR 15.000 are applicable to the use of the System, except those that specifically have been varied by the terms of this Certification. 2. The facility served by the System, and the System itself, shall be open to inspection and sampling by the Department and the local approving authority at all reasonable times. 3. In accordance with applicable law, the Department and the local approving authority may require the owner of the System to cease use of the System and/or to take any other action as it deems necessary to protect public health, safety, welfare or the environment. 4. The Department has not determined that the performance of the System will provide a level of protection to the environment that is at least equivalent to that of a sewer. Accordingly, no new System shall be constructed, and no System shall be upgraded or expanded, if it is feasible to connect the facility to a sanitary sewer,unless allowed pursuant to 310 CMR 15.004. 5. Design, installation and use of the System shall be in strict conformance with the Company's DEP approved plans and specifications and 310 CMR 15.000, subject to this Certification. IV. Conditions Applicable to the System Owner 1. The System is approved for the treatment and disposal of sanitary sewage only. Any wastes that are non-sanitary sewage generated or used at the facility served by the System shall not be introduced into the on-site sewage disposal system and shall be lawfully disposed of. 2. For new construction, the owner initially shall size a soil absorption system in accordance with 310 CMR 15.242 to demonstrate that a conventional Title 5 soil adsorption system using aggregate, including a reserve area, can be installed on the site. The owner may than size the soil absorption system for the System. The total area required for the aggregate system, which may include the area designated for the System, and a reserve area shall be preserved and the owner shall ensure that no permanent structures or other structures are constructed on that area and that the area is not disturbed in any manner that will render it unusable for future installation of a conventional Title 5 soil absorption system. 3. The owner of the System shall at all times properly operate and maintain the on- site sewage disposal system. CULTEC Modified Certification for General Use Page 6 of 7 4. The owner shall furnish the Department any information that the Department requests regarding the operation and perfoinaance of the System, within 21 days of the date of receipt of that request. 5. No owner shall authorize or allow the installation of the System other than by a person trained by the Company to install the System. V. Conditions Applicable to the Company 1. By January 31st of each year, the Company shall submit to the Department a report, signed by a corporate officer, general partner, or Company owner that contains information on the System for the previous calendar year. The report shall state known failures, malfunctions, and corrective actions taken for the System as well as the date and address of each event. 2. The Company shall notify the Department's Director of Watershed Permitting at least 30 days in advance of any proposed transfer of ownership of the technology for which this Certification is issued. Said notification shall include the name and address of the proposed new owner and a written agreement between the existing and proposed new owner containing a specific date for transfer of ownership, responsibility, coverage and liability between them. All provisions of this Certification applicable to the Company shall be applicable to successors and assigns of the Company,unless the Department determines otherwise. 3. The Company shall furnish the Department any information that the Department requests regarding the System, within 21 days of the date of receipt of that request. 4. Prior to any sale of the System, the Company shall provide the purchaser with a copy of this Certification. In any contract for distribution or sale of the System, the Company shall require the distributor or seller to provide the purchaser of the System,prior to any sale of the System, with a copy of this Certification. 5. The Company shall prepare and provide the Department with an installation manual specifically detailing procedures for installation of its System. The Company shall institute and maintain a training program in the proper installation of its System in accordance with the manual and provide a training course at least annually for prospective installers. The Company shall certify that installers have passed the Company's training qualifications, maintain a list of certified installers, submit a copy to the Department, and update the list annually. Updated lists shall be forwarded to the Department. 6. The Company shall not sell the System to installers unless they are trained to install these Systems by the Company. VI. Conditions Applicable to Installers of the System CULTEC Modified Certification for General Use Page 7 of 7 1. Each Installer shall install the System in accordance with Company training on the installation of the System and the conditions of this Certification. 2. No Installer shall install the System unless the Installer has been trained by the Company on installation of the System. VII. Reporting 1. All submittals of notices and documents to the Department required by this Certification shall be submitted to: Director Wastewater Management Program Department of Environmental Protection One Winter Street- 5th floor Boston, Massachusetts 02108 VIII. Rights of the Department 1. The Department may suspend, modify or revoke this Certification for cause, including, but not limited to, non-compliance with the terms of this Certification, non-payment of an annual compliance assurance fee, for obtaining the Certification by misrepresentation or failure to disclose fully all relevant facts or any change in or discovery of conditions that would constitute grounds for discontinuance of the Certification, or as necessary for the protection of public health, safety, welfare or the environment, and as authorized by applicable law. The Department reserves its rights to take any enforcement action authorized by law with respect to this Certification, the System, the owner, or operator of the System and the Company.