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HomeMy WebLinkAboutMiscellaneous - 429 Salem Street _._ e � — _ � `�,1 I 1 +1 Mar-22-99 04: 16P Paul D. Turbide, PE/PLS 508-465-0313 P-06 A March 22 1999 iSandra Starr North Andover Board of Health Administrator Office of Community Development and Services 30 School St. North Andover,MA 01845 RE: Title V review for 429 Salem Street,Lot C Dear Sandra, Enclosed find the"Checklist for North Andover Septic System Plans"for the above- mentioned site. The following is a list of all the `Problem' areas and deficiencies Port Engineering has found. j 1. The reserve area must be located 4'off the primary leaching system. NA 9.04 2. Existing contours must be shown extending into the pavement of Salem Street to be able to determine whether the 3:1 slope is in compliance. (The stone wall shown is a retaining wall, and thus a 3:1 slope may encroach on the pavement of Salem Street) 3. If the reserve area is used,an impervious barrier must be installed to keep the fill required for the 3:1 slope from encroaching over Salem Street. North Andover regulations require that impervious barriers be constructed of reinforced concrete, which must be designed b professional engineer. At a minimum this Y a P 8 m, information should be stated on theP lan. 4. I believe there is a drafting error in the"Profile SepticSy stern"S stem"detail. The bottom of stone elevation is given as 196.10', 1 believe it should in fact be 199.10 . 5. The regulations state: "Trenches shall be used wherever possible."310 CMR 15.240(6). Reasons why a leaching field was used instead of trenches should be given. 6. A note that the distribution lines of the field shall be connected with solid pipe should appear on the profile. NA 15.01. 7. A note that the slope of the pipes in the leaching field shall be 0.005 should appear on the profile. 310 CMR 15.251(9)(The system inverts were correctly designed using this slope). 8. The vent detail is for a monitoring well and should be redesigned as just a vent(i.e., no perforated pipe running vertically below the leaching field). (Note that a vent is not required for this design, however a vent may be advantageous to the proper Poit I working of the leaching field). ENGINE f RING 9. Note 7 states that: "Any change of conditions at the site shall be brought to the attention of the engineer...". The statement: "and the Board of Health" should be added after the word"engineer". Civil Engineers& 10.In the distribution box detail, a 2"pipe is shown running in to and out of the dbox. Land Surveyors This should be changed to a 4"pipe. One Harris Street Newburyport,MA 01950 (978)465-8594 Mar-22-99 04: 16P Paul D_ Turbide, PE/PLS 508-465-0313 P_07 I » 11. The address of the owner and the address of the applicant must be shown. NA 8.02k 12. The elevation of the proposed driveway must be shown. NA 8.02t 13. The location and elevation of the foundation drain must be shown. NA 8.02y 14. The elevation of the perc test must be given. NA 8.02n If you have any questions or commentsP lease feel free to contact me. Sincerely Carlton A. Brown,PE/PLS Salem429c.doc 429C Salem Street Mar-22-99 04: 15P Paul D. Turbide, PE/PLS 508-465-0313 P_04 s March 22, 1999 Sandra Starr North Andover Board of Health Administrator Office of Community Development and Services 30 School St. North Andover, MA 01845 RE: Title V review for 429 Salem Street,Lot B Dear Sandra, Enclosed find the"Checklist for North Andover Septic System Plans" for the above- mentioned site. The following is a list of all the `Problem' areas and deficiencies Port Engineering has found. 1. The reserve area must be located 4' off the primary leaching system. NA 9.04 2. Existing contours must be shown extending into the pavement of Salem Street to be able to determine whether the 3:1 slope is in compliance. (The stone wall shown is a retaining wall, and thus a 3:1 slope may encroach on the pavement of Salem Street) 3. If the reserve area is used, an impervious barrier must be installed to keep the fill required for the 3:1 slope from encroaching over Salem Street. North Andover regulations require that impervious barriers be constructed of reinforced concrete, which must be designed by a professional engineer. At a minimum, this information should be stated on the plan. 4. Fill is shown running right to the street line of Salem Street(and perhaps beyond). The regulations require that the toe of fill stop 5' from a property line, or a swale must be installed. 310 CMR 15.255(2) 5. The"Profile Septic System" appears to have drafting errors. The inverts of the pipe exiting the foundation, and entering and exiting the septic tank appear to be 1 foot too high. I believe the invert at the building should be 208.05' (rather than 209.05), the inlet of the septic tank should be 207.85 (rather than 208.85)and the outlet of the septic tank should be 207.60(rather than 208.60). 6. The regulations state: "Trenches shall be used wherever possible." 310 CMR 15.240(6). Reasons why a leaching field was used instead of trenches should be given. PO 7. A note that the distribution lines of the field shall be connected with solid pipe should appear on the profile.NA 15.01. 8. A note that the slope of the pipes in the leaching field shall be 0.005 should appear ENGINEERINGon the profile. 310 CMR 15.251(9)(The system inverts were correctly designed using this slope). 9. The vent detail is for a monitoring well and should be redesigned as just a vent(i.e., Civil Engineers& no perforated pipe running vertically below the leaching field). (Note that a vent is Lanni Surveyors not required for this design,however a vent may be advantageous to the proper One Harris street working of the leaching field). Newb r y51?t ,MA 10_Note 7 states that: "Any change of conditions at the site shall be brought to the (978)465-8594 attention of the engineer...". The statement: "and the Board of Health" should be added after the word"engineer". 11. In the distribution box detail, a 2"pipe is shown running in to and out of the dbox. This should be changed to a 4"pipe. Mar-22-99 04: 15P Paul D. Turbide, PE/PLS 508-465-0313 P.05 12. The address of the owner and the address of the applicant must be shown. NA 8.02k 13. The elevation of the proposed driveway must be shown. NA 8.02t 14. The location and elevation of the foundation drain must be shown. NA 8.02y 15. The elevation of the pert test must be given. NA 8.02n 16.Benchmarks must beset within 50 to 75' of the facility. 310 CMR 15.220(4ft If you have any questions or comments please feel free to contact me. Sincerely Carlton Arown,, PWPLS Salem429b.doc ��//W- 429B Salem Street Mar-22-99 04: 14P Paul D_ Turbide, PE/PLS 508-465-0313 P_02 5�— March 22, 1999 i Sandra Starr North Andover Board of Health Administrator Office of Community Development and Services 30 School St. North Andover,MA 01845 RE: Title V review for 429 Salem Street, Lot A Dear Sandra, Enclosed find the"Checklist for North Andover Septic System Plans" for the above- mentioned site. The following is a list of all the `Problem' areas and deficiencies Port Engineering has found. 1. The reserve area must be located 4' off the primary leaching system. NA 9.04 2. Existing contours must be shown extending into the pavement of Salem Street to be able to determine whether the 3:1 slope is in compliance. (The stone wall shown is a retaining wall,and thus a 3:1 slope may encroach on the pavement of Salem Street) 3. If the reserve area is used, an impervious barrier must be installed to keep the fill required for the 3:1 slope from encroaching over Salem Street. North Andover regulations require that impervious barriers be constructed of reinforced concrete, which must be designed by a professional engineer. At a minimum, this information should be stated on the plan. 4. Fill is shown running right to the street line of Salem Street and perhaps beyond). The regulations require that the toe of fill stop 5' from a property line, or a swale must be installed. 310 CMR 15.255(2) 5. The regulations state: "Trenches shall be used wherever possible." 310 CMR 15.240(6). Reasons why a leaching field was used instead of trenches should be given. 6. A note that the distribution lines of the field shall be connected with solid pipe should appear on the profile. NA 15.01. 7. A note that the slope of the pipes in the leaching field shall be 0.005 should appear on the profile. 310 CMR 15.251(9)(The system inverts were correctly designed using this slope). 8. The vent detail is for a monitoring well and should be redesigned as just a vent(i.e., PORT no perforated pipe running vertically below the leaching field). (Note that a vent is not required for this design, however a vent may be advantageous to the proper ENGINEERING working of the leaching field). 9. Note 7 states that: "Any change of conditions at the site shall be brought to the attention of the engineer...". The statement: "and the Board of Health" should be Civil Engineers& added after the word"engineer". Lend Surveyoru 10.In the distribution box detail, a 2"pipe is shown running in to and out of the dbox. One Harris Street This should be changed to a 4"pipe. Newburyport,MA 01950 (978)465-8594 I Mar-22-99 04: 15P Paul D. Turbide, PE/PLS 508-465-0313 P.03 11. The address of the owner and the address of the applicant must be shown. NA 8.02k 12. The elevation of the proposed driveway must be shown. NA 8.02t 13. The location and elevation of the foundation drain must be shown. NA 8.02y 14. The 5' limit of topsoil and subsoil excavation must be shown on the plan and profile. MA 8.02z 15. The elevation of the perc test must be given. NA 8.02n 16.Benchmarks must be set within 50 to 75' of the'facility. 310 CMR 15.220(4)(q) A minor point is that on the site detail plan,the dimension between the foundation and septic tank of 10' is missing. If you have any questions or comments please feel free to contact me. Sincerely Carlton A.Brown,PE/PLS Salem429a.doc 429A Salem Street