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M <br />I"➢ <br />16 Great Neck Road North <br />Mashpee, .Massachusetts 02649 <br />Ms. Cajigas commented the permit covers municipal property within the urbanized area, as <br />defined based on the 2010 US census. In Mashpee, the entire town is designated. In that <br />respect it is implemented in municipally owned properties. The minimum control measures are <br />taken then addresses the ponds that are impaired. The six control measures are annual. 2016 <br />marked year five of the permit and it is administratively continued, as there are 10 years of <br />requirements with measures that still have to be taken. Ashumet Pond and Santuit Pond <br />guarantee additional requirements. <br />Ms. Faulkner keeps asking herself why the 2016 MS4 is considered a small separate <br />stormwater system. <br />Ms. Cajigas noted Boston may have a combined sanitary and sewer system, but would fall <br />under small separate sewer system. The permit from 2016 was finalized in 2018, while the <br />prior permit was from 2003, but it is still referred to as the 2016 permit. <br />Accomplishments from year four were public participation, updating outfalls, system mapping, <br />street sweeping, and cache basin clean outs which all get reported on yearly. The two <br />impaired bodies of water have additional seasonal focuses to monitor phosphorus levels. In <br />permit year four some additional minimum control measures were evaluated such as <br />regulations, guidelines, and bylaws pertaining to street design and parking lots, and how to <br />update the reduction of impervious coverings within the town. They look to local regulations to <br />see how it could impact feasibility and low impact. <br />The Phosphorous Source ID Report calculates all impervious areas connected to the impaired <br />ponds. Those areas provide faster pathways for pollutants. It identifies town owned parcels <br />with high phosphorus loading and helps in finding ways to reduce. They utilize the GIS and MA <br />DEP watershed planning tool which helped to address calculations for loads. Overall, these <br />two watersheds are not highly developed, for retrofit opportunities there is not a lot of <br />phosphorus from town owned sources so it is tough to make recommendations. <br />The Municipal Vulnerable Preparedness action report is another report that looks at pollution <br />and solutions of phosphorus in Santuit Pond. 21 sites were identified for retrofit such as <br />roadways, medians, dead ends, cul-de-sacs, and town owned parcels. They were identifying <br />areas for rain gardens or vegetation swales. In looking at both reports they are able to come <br />up with better criteria for what would decrease loads. They want to have the most reduction <br />while also considering costs. <br />They look at current street designs, size of parking lots, as well as requirements for number of <br />spots that affect cover. All rules that allow or encourage low impact development are <br />3 <br />