BOSTON QUINCY MILTON DOVER WESTWOOD wmBP Brook & -&rook MEDFIELD NORWOOD RANDOLPH CANTON^ Willet Pond r^f.gphoK NevoM* <*, Turner Pond WADPOLEl >STOUGHTON Ganawatte ' jf)' Farm Pond. SHARON) FOXBOROUGH Crack Rock Pond Grade Water Segment „ Average Compliance Kate Neponset River Watershed Water Quality Grades and Compliance Rates - Calendar Year 2020 Turner Pond (Walpole) 98.6% Crack Rock Pond 97.3% Ganawatte Farm Pond 96.8% Willet Pond 96.1% Massapoag Brook 89.7% Mill Brook 89.5% East Branch 86.7% Beaver Brook 86.3% Steep Hill Brook 86.2% Spring Brook 81.8% Mother Brook 79.8% Upper Neponset River 76.8% Mine Brook 76.0% Ponkapoag Brook 75.7% Lower Neponset River 74.4% Beaver Meadow Brook 71.8% Pecunit Brook 70.6% Hawes Brook Traphole Brook Pine Tree Brook Pequit Brook Germany Brook Purgatory Brook Unquity Brook Meadow Brook 69.3% 63.0% 62.1% 58.4% 50.1% 45.0% 31.4% 24.1% B Monitoring Points Average Compliance Rates for Swimming and Boating Standards c 100-86 85-71 70-56 55-40 39-0 D 2020 Neponset River Watershed Report Card (based on 2018-2020 bacterial data) Data Sources: Mystic River Watershed Association, U.S. EPA, Massachusetts Water Resources Authority, MassGIS. Basemap: Canvas/World Light Gray Base © ESRI and its data suppliers. EPA Region 1 GIS Center map #13390, 7/14/2021 ------- |