10/16/2006 Annual Town Meeting - Laserfiche WebLink

Home Browse Search

Correct the second sentence of Subsection B.(2) to read-, "If so, the report shall specify how such materials will be handled, stored or disposed and a determination of whether or not such materials will have any impact on public health or safety." Replace the current wording of Subsections B.(4) and (5) with the following: "(4) A determination of the levels, in total pounds and in pounds per acre, of nitrogen and phosphorus that could be generated by the development. In making such determination,, the following standards shall be used unless the applicant demonstrates to the satisfaction of the Board that other standards are applicable: (a) Residential wastewater loading: 525 liters (139 gallons) per day (gpd per residence (assumes 154 gpd water use and 90% return flow as wastewater); total nitrogen 26.25 milligrams per liter (assumes Title 5 septic system and leach field); phosphorus one (1) pound per year per residence. Or Loading per person: five (5) pounds nitrogen per person per year; four-tenths (0.4 pound phosphorus per person per year, assuming two and one-half(2. persons per dwelling unit. (b) Non-residential wastewater loading: For commercial and industrial developments, nitrogen and phosphorus calculations shall be derived from expected wastewater generation as specified by Title V of MGL C. 2 1 A, §13. (c) Loading from lawn fertilizer: 1.08 pounds nitrogen and 0.0069 pound phosphorous per one thousand (1,000 square feet per year, with 5000 sq. ft. average lawn size assumed per lot in a single-family subdivision. (d) Loading from stormwater: 1.5 mg/l nitrogen for road runoff, 0.75 mg/l for roof runoff and 0.072 mg/l for natural areas; nine-hundredths (o.09) pound nitrogen per road mile per day; 0.00048 pound phosphorus per road mile per day. (5) The existing condition of the receiving water body or water supply (existing or proposed), including physical characteristics and water chemistry. Data may be derived from the Massachusetts Estuaries Project final reports referenced in Section B.(I)d. above and associated reports,, or on more recent data acceptable to the Planning Board. Any new measurement of existing surface water quality must include sampling during summer (peak population) conditions. Measurements shall specifically include concentrations of nitrate and sodium in public water supply wells, phosphorus in freshwater bodies and total nitrogen in saltwater bodies." Replace the current wording of Subsection B.(7) with the following: "(7) The comparison, on a total kilograms and a kilograms per-acre basis, of the total nitrogen loading from the proposed development with the TMDL (total maximum daily load) target nitrogen loading established for the sub-watershed in which the project is located by the Massachusetts Department of Environmental Protection." 22