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Home My WebLink AboutConsultant Review - 316 JOHNSON STREET 4/29/2004 TOWN OF NORTH ANDOVER PLANNING BOARD ENGINEERING REVIEW OF WATERSHED SPECIAL PERMIT APPLICATION AND ASSOCIATED PLANS FOR CONFORMANCE WITH THE TOWN OF NORTH ANDOVER ZONING BYLAW AND STANDARD ENGINEERING PRACTICE Site Plan Title: Site Improvement Plan of Land VHB No.:06716.93 Location: Johnson Street,North Andover,MA Owner. Eugene&Judith Reilly �!= `f <� mmnJVi i Applicant: Eugene&Judith Reilly 6 0 0'U-' i , MV Applicant's Engineer: Merrimack Engineering Services C Review Date: April 29,2004 Vanasse Hangen Brustlin,Inc.(VHB)is providing an engineering review of the Watershed Special Permit Application and associated plans provided to date. This review is conducted in accordance with the Town of North Andover Zoning Bylaw,Massachusetts Department of Environmental Protection(DEP)Stormwater Management Policy and standard engineering practice. VHB has reviewed the following. ➢ Application for Watershed Special Permit,received April 13,2004 ➢ Narrative attachment to Application for Watershed Special Permit ➢ Site Improvement Plan,Prepared by Applicant's Engineer,dated April 7,2004 A Fossil Rock Characterization Project Attachment The following comments note non-conformance with specific sections of the Zoning Bylaw,questions/comments on the proposed design,and VHB's recommendations and/or suggestions. General Comments: • Overall the application for Watershed Special Permit appears to have been well prepared. • There appears to be a large amount of proposed impervious area(driveway pavement). Would the applicant consider replacing a portion of paved driveway area with a pervious material such as crushed stone? \\Mawatr\te\06916.93\repocb\wsp.doc 1 Section 4.136—Watershed Protection District • 3.c.ii.6. This section states that an expansion of an existing structure may not exceed 25%of the gross floor area of the existing structure. The applicant is proposing a large three-car gargage which appears to be approximately 351/6 of the gross floor space of the existing structure. The area of this gargage has not been included in the calculation for gross floor area increase. VHB requests that the applicant explain why this area has been excluded. • 4.c.iii. Written certification by a Registered Professional Engineer,or other scientist educated in and possessing extensive experience in the science of hydrology and hydrogeology,stating that there will not be any significant degradation of the quality or quantity of water in or entering Lake Cochichewick has not been provided. The applicant should provide this certification. • 4.g. Recharge calculations should be formally submitted to show that the proposed infiltration system will be able to recharge the runoff from the proposed impervious areas. Standard Engineering Practice: • VHB recommends that the applicant perform test pits to accurately determine the soil type and the infiltration rate of the soil. The infiltration rate used is assumed and therefore the design of the infiltration system cannot be accurately verified. • Will the fossil filter and/or the infiltration system require future maintenance? Any future maintenance will be the responsibility of the applicant. It is recommended that the Applicant provide WRITTEN RESPONSES to the issues and comments in the General Comments,Watershed Protection District and Standard Engineering Practice sections. Reviewed by: Date: `1- �b-0.1 Ross Morrow Civil Engineer—Highway and Municipal Vanasse Hangen Brustlin,Inc Reviewed by: 'rn . , _9ll� �i Date: Timothy YKMcIntosh,P.E. Project Manager/Senior Project Engineer—Highway and Municipal Vanasse Hangen Brustlin,Inc. \\Mawatr\te\06716.93\reports\wsp.doc 2 TOWN OF NORTH ANDOVER PLANNING BOARD ENGINEERING REVIEW OF WATERSHED SPECIAL PERMIT APPLICATION AND ASSOCIATED PLANS FOR CONFORMANCE WITH THE TOWN OF NORTH ANDOVER ZONING BYLAW AND STANDARD ENGINEERING PRACTICE Site Plan Title: Site Improvement Plan of Land VHB No.:06716.93 Location: Johnson Street,North Andover,MA Owner. Eugene&Judith Reilly Applicant: Eugene&Judith Reilly Applicant's Engineer. Merrimack Engineering Services Plan Date: April 7,2004 Review Date: April 29,2004 Revised: May 3,2004 Review Date: May 21,2004 Vanasse Hangen Brustlin,Inc.(VHB)is providing an engineering review of the Watershed Special Permit Application and associated plans provided to date. This review is conducted in accordance with the Town of North Andover Zoning Bylaw,Massachusetts Department of Environmental Protection(DEP)Stormwater Management Policy and standard engineering practice. VHB has reviewed the following. Application for Watershed Special Permit,received April 13,2004 Narrative attachment to Application for Watershed Special Permit ➢ Site Improvement Plan,Prepared by Applicant's Engineer,dated April 7,2004 ➢ Fossil Rock Characterization Project Attachment ➢ Groundwater Recharge Calculations,dated May 11,2004 ➢ Certification Letter,not received The Applicant's Engineer has addressed the majority of the comments from our initial review letter;however,a few minor issues remain.The responses listed below follow the general outline of VHB's April 29,2004 Site Plan review letter. For clarity,VHB's original comment is shown in normal font followed by our second comment shown in bold font. General Comments: i • Overall the application for Watershed Special Permit appears to have been well prepared. Comment has been addressed. TA06716.93\repat8\w5p-316 10hAWn4Md0c i • There appears to be a large amount of proposed impervious area(driveway pavement). Would the applicant consider replacing a portion of paved driveway area with a pervious material such as crushed stone? The Applicant's response indicates the plan revision incorporated a portion of the paved area to be replaced with non-asphalt material to allow greater infiltration. The Proposed Landscape Layout Plan shows that the southern driveway material has been changed to peastone with a grass island,but the Site Improvement of Land(sheet 3)still has the area labeled as"proposed bit.conc.driveway". It assumed the peastone will be the material used for the construction of the driveway. Therefore,the comment has been addressed. Section 4.136—Watershed Protection District • 3.c.ii.6. This section states that an expansion of an existing structure may not exceed 251/6 of the gross floor area of the existing structure. The applicant is proposing a large three-car gargage which appears to be approximately 35%of the gross floor space of the existing structure. The area of this gargage has not been included in the calculation for gross floor area increase. VHB requests that the applicant explain why this area has been excluded. Comment has been addressed. • 4.c.iii. Written certification by a Registered Professional Engineer,or other scientist educated in and possessing extensive experience in the science of hydrology and hydrogeology,stating that there will not be any significant degradation of the quality or quantity of water in or entering Lake Cochichewick has not been provided. The applicant should provide this certification. Applicant's response indicates the written certification was submitted. VHB has not received a copy of the letter and assumes it has been forwarded to the town. No additional review by VHB is anticipated. • 4.g. Recharge calculations should be formally submitted to show that the proposed infiltration system would be able to recharge the runoff from the proposed impervious areas. Comment has been addressed. Standard Engineering Practice: ! • VHB recommends that the applicant perform test pits to accurately determine the soil type and the infiltration rate of the soil. The infiltration rate used is assumed and therefore the design of the infiltration system cannot be accurately verified. Comment has been addressed. • Will the fossil filter and/or the infiltration system require future maintenance? Any future maintenance will be the responsibility of the applicant. Comment has been addressed. T.\0671693\reports\wsp-316)ohnson42.da 2. The Applicant has provided satisfactory written responses to the issues and comments in the General Comments,Watershed Protection District and Standard Engineering Practice sections generated by the intial review. There are two outstanding issues to be resolved: • Material to be used for southern driveway • Certification Letter No further engineering review is required. Reviewed by: Date: I Ross Morrow Civil Engineer—Highway and Municipal Vanasse Hangen Brustlin,Inc. Reviewed by: Date: Timothy McIntosh,P.E. Project Manager/Senior Project Engineer—Highway and Municipal Vanasse Hangen Brustlin,Inc. 71.\0671493\reports\wsp316 jduism-ndoe 3 MERRIMACK ENGINEERING SERVICES, INC. PROFESSIONAL ENGINEERS • LAND SURVEYORS • PLANNERS 66 PARK STREET•ANDOVER,MASSACHUSETTS 01810•TEL(978)475-3555,373-5721 •FAX(978)475-1448•E-MAIL:merreng@aol.com May 10, 2004 Ms. Julie Parrino, Planning Director Town of North Andover Planning Department 27 Charles Streets, North Andover, MA 01845 Re: Eugene and Judith Reilly 316 Johnson Street North Andover,MA Dear Ms. Parrino: We have reviewed the comments in your letter to the Planning Board, dated April 28, 2004, relative to the Application for Watershed Special Permit. Our comments are presented herein in the order as outlined in your letter as follows: SECTION 4.136 WATERSHED PROTECTION DISTRICT SECTION 2—BOUNDARIES AND ZONES: The 325' Non-Discharge Zone extends from the wetland edge in the rear of the project to a point well beyond the site to the property located on the opposite side (west) of Johnson Street. Therefore, the broken line symbol shown on the site plan was used specifically to indicate "to an extend beyond" the project limit, thereby representing that all of the proposed site activity will be occurring within the 325' Non Discharge Zone. SECTION 4.136—SPECIAL PERMIT REQUIREMENTS 4.136(3)(c)(ii)(6) —The 'Open Porch' and 'Garage' are unlivable spaces and are, therefore, not included in the Gross Floor Area Calculation. 4.136(4)(c)(iii)—The Certificate regarding 'no impact' is enclosed herewith for review. Ms. Julie Parrino, Planning Director May 10, 2004 Page 2 4.136(4)(c)(vi &vii)—A manufacturer's product sheet for the slow release organic —type) low nitrogen fertilizer is enclosed herewith for review. 4.135(4)(g)—The area of impervious driveway surface has been reduced as a result in a decrease in the driveway area and a change in driveway material to promote direct recharge to groundwater. The grass lined swales proposed are ideal as a B.M.P. for treatment of surface runoff. There should be no need for a catch basin in the southern driveway due to ability to utilize a grass-lined treatment swale to filter out any pollutants. The bluestone terraces will allow for infiltration through the gap in the joints between these stones. Soil tests have been done on the site at the location of the leaching basins. The soil test data is included herewith. The driveways are proposed to be utilized for access to the existing garage and the proposed three car garage (north driveway), and to provide a more aesthetically pleasing access and drop off at the front of the house (relocation of existing southerly driveway). SECTION 7 DIMENSIONAL REQUIREMENTS Section 7.4—The proposed addition will be approximately 30 feet in height, as shown on the Architectural Design Plan, a copy of which is enclosed herewith. GENERAL COMMENTS: 1. A revised Landscaping Plan has been prepared and is submitted herewith. 2. A Landscape Retaining Wall detail has been provided. Refer to Sheet 5 of 5 for this detail. 3. The detail for erosion control has been modified to include haybale sand silt fencing. Refer to Sheet 5 of 5 for this detail. 4. The spot grade elevations have been revised, regarding transposing errors. 5. It is proposed that yard post lighting be provided in lieu of lighting along the driveways and on top of the proposed pillars. MERRIMACK ENGINEERING SERVICES,INC. • 66 PARK STREET • ANDOVER,MASSACHUSETTS 01810 Ms. Julie Parrino, Planning Director May 10, 2004 Page 3 6. Certain notes have been provided on the plan so the General Contractor will achieve the highest level of coordination among the building trades working on the site. 7. Although there are two (2) sewer services proposed, this design concept has not been submitted for a sewer connection permit from the North Andover Department of Public Works. The two (2) services may be combined on the site such that only a single sewer connection in Johnson Street will be necessary. 8. A Streamflow Statistics Report has been prepared and is included herewith. The result is that the stream is well under the established threshold for perennial stream determination and, therefore, is an intermittent stream. 9. A separate letter has been written in response to review comments prepared by VHB Inc. A copy of that letter is enclosed herewith. Please contact me directly should you have questions or comments regarding the above or enclosures. Very truly yours, MERRIMACK ENGINEERING SERVICES C. Daley, P.E. Project Engineer cd Enclosure cc: Mr. Timothy McIntosh, P.E., VHB Inc. Mr. Gene Reilly, Property Owner Mr. Rob Bramhall, Architect Mr, Hugh Collins, Landscape Architect MERRIMACK ENGINEERING SERVICES,INC. • 66 PARK STREET • ANDOVER,MASSACHUSETTS 01810 Streamflow Statistics Report page I of t 2 U S_ G_S_ E sciran far� wort Streamflow Statistics Deport i, 1 ,5 t M Generated Basin Pre-existing Subbasins Centerline Route System Date: Tue May 04 10:16:40 2004 Wamingl Drainage Area outside allowable range. Prediction intervals not calculsted. Latitude: 42.6772 Longitude: -71.1042 Measured Basin Characteristics: Drainage Area (square miles): 0.19 Stratified Drift Area (square miles): 0.00 Stream Length (miles): 0.74 Slope (percent: 3.69 Region: 0 Statistic Estimated 90% Prediction interval Streamflow, http:%/ststdma=l,er.usgs.gov/.esrimap?name=av3Omg23bf377e6%26Cmd%3DRogressFio.,. 5/4/2004 Sttmutlow Statistics Report Page 2 of 2 ft3/8 Minimum Maximum rcont duration now 0.00 rcont duration How 0100 0 rcont duration flow 10-00 reent duration flaw 0.01 85 raont dunaon now 0.02 801-percent duration flow 0.02 16 rcent duration now 0.03 TOnpercent duration How 0105 60 rcont duration now . . . 0110. 60 ment duration flow 0.18 T-d* 2-year low now 0.01 T-4y,10 oar low now 0.00 Au ust median flow 10.02 U.S. Department of the Interior, U.S. Geological Survey 10 Bearfoot Road Northborough, MA 01532 (508)490-6000 Maintainer. webrria �, rim ;*s1.er.usg8.gov http://ststdmwwl.er.usgs.gov/.esrimap?name=av3Omg23bf377c6%26Cmd%3 DRegressFlo... 5/4/2004 Identify Results Page 1 of i Identify Results !Major Banns Arta Perh�reter 3o11i)>3.C�56 Mal bas# 2 Ma bas-+d 24 rta-NCrte 173291.75D Bw-id 13 Nwntt MEJtJ2JMAClt. M,A. Towns Ere& 71655()61,(K)0 Foximeter 396132.867 owns# 35 ow•�r-W 34 vwa . C>RTH ANZ)t)y � -ttoo 25(0) Ccd/m 1120 FI lau 46365 Po 21_670 pop" 2792 � ldmd Po eh 111122 r-o�cd 23009120 F r-conwh• tli 9 http://ststdmamxi.er.usgs.gov/.esrimap?name=av30mg23bf377e6&Cmd=rn1.D&pt=234018,4_., 5/3/2004 wtkArArfMysiy r P MiuWi tv MON. P �Ik '�ll+ t ZOOM to Dote ADO L^w lk Ik • it• � j � ! ' � , '', Imo.,•�. 'I :5 --- .� I j - '�, j�f i' j �'',, r, j 'j' ''' I :t . ' ��ti '� r li, i, !' `•=ti �, xu�l tI Apj wlnfuw qnp MERRIMACK ENGINEERING SERVICES, INC. PROFESSIONAL ENGINEERS 0 LAND SURVEYORS 0 PLANNERS 66 PARK STREET-ANDOVER,MASSACHUSETTS 01810-TEL(978)475-3555,373-5721 -FAX(978)475-1448•E-MAIL:merreng@aol.com May 10, 2004 Town of North Andover Planning Board 27 Charles Street MAY I North Andover,MA 01845 RE: Reilly Property H ENT 316 Johnson Street North Andover, MA Dear Members of the Board: This letter is written to emphasize to the Planning Board and confirm my opinion that there will be no detrimental impact to the downstream wetland nor to Lake Cochichewick from the site development proposed on the plans prepared by this firm. The roof run off will be collected and recharged into a leaching pit to provide recharge to the groundwater. The majority of the driveway runoff will be discharged into a proposed grass-lined Swale which will serve to filter out any potential pollutants prior to entering the adjacent wetland. The remaining driveway runoff, in the vicinity of the proposed three car garage will be collected and treated in a catch basin, then discharged into a leaching basin. Currently the property is serviced with no stormwater management on site. Please contact me should you have questions or comments. Very truly yours, MERRIMA K ENGINEERING SERVICES rt Ro ert C. Daley, P.E. Project Engineer cd cc: Mr. Gene Reilly NJ/04/2%104 09: 36 "38':738062 JOHN SHEILA MURPHY PAGE 022 Strewnflow Statistics Rcport Page l cf 2 Air� SGS ip�w�orY Streamflow Statistics Report � r \ l t S l i C3 Generated Resin Pre-existing Subbasins Centerline Route System Date: Tue May 0410:10:40 2004 Warning!Drainage Area outside allowable range. Prediction Intervals not calculated. Latitude: 42.5772 Longitude: -71.1042 Measured Basin Characteristics: Drainage Area (square miles): 0.18 Stratified Drift Area (square miles): 0.00 Stream Length (miles): 0.74 Slope (percent): 3.59 Region: 0 Statistic Estimated 90% Prediction interval Streamflow, I http:%/ststdmawl.er-usgs.gov/.esrimap?name=av30mg2 3bt3 77e6%26Cmd%3DRogressFIo.,. 5/4/2004 05/04/2004 09: 36 1983736062 JOHN & SHEILA MURPHY PAGE O:J Stteamilow Statistics Report Page 2 of'2 ft3/s Minimum Maximum 99 rcent duration flow 0.00 rcent duration flow 0100 6 rcent duration now 0.00 rcent duration now 0.01 83.99rcent duration Aow 0.02 80 rcent duration flow 0.02 73 rcent duration►flow 0.03 TO rcent duration flow 0105 60 rcent duration flow 0,10 80- rcent duration flow 0.18 T-d# 2 ear low flow 0.01 7-day, 10- err low Row 0.00 Au ust median Row 0.02 U.S. Department of the Interior, U.S. Geological Survey 10 8earfoot Road Northborough, MA 01532 (508)490-5000 Maintainer: webmasterj@mp4sl.er.usgs.gov http://ststdmamr i.er.usgs.gov/,esrimap?name=av3Omg23bf377e6%,26Cn)d%3DRe ssFio... 5/4/2004 05/04/1004 05:36 198'738062 JOHN & SHEILA MURPHY PAGE 04 Identify Results Page 1 of I Identify Results Major Basins Sba �1'uh on Perit�retcr 301108,6 11iw bas# 2 _._.1 1 a bas-i<i 24 Am-wtres JL73291.750 Bas-id 13 Nwane MERRIMACI� MA Towns Shape i,. t,.o Ana 7l(i5-50 88,1)fN) Perimeter 39812 967 ow as# i> ort•as4d i4 ><OWD-[d 214i Tow- N('.)RTH ANT)OVE ps-taco 25(x)0 Ccdtmcd l2U Fi lace 146365 [POP"21(17(1 P. " 22702 [sb wd ) Po cb 1122 P t-Wd P5t}(f9120 F s-couwt. tk;2 http;//st-,tdrnamrl,er-usgs.gov/.esrimap?name=av3Omg23bf377e6&Cmd=m]D&pt=234018.4..• 5/312004 05/04/2C104 09.36 198S738062 JOHN SHEILJ� MURPHY PAGE 05 w#k*Am4mWo r gt,q§ov r s�' r r b�of+ ..�1111f�agn ZOOM to owe ADD L,*Iw i V � -- I t*Nk li I 11 1 I II I j l Dom reap._._..„...._.......,_,.,,.,...,.:.m.� ! '1 f'� !;�•'• I�� ._ -- - _��• , • � I r I,-