Westford Chelmsford Lowell Tyngsborough Dracut Carlisle Billerica MA84A-01_2008 Merrimack River (5) MA84A-03_2008 Merrimack River (5) MA82A-21_2008 Unnamed Tributary (2) MA82A-08_2008 Concord River (5) MA84A-21_2008 Deep Brook (5) MA84B-04_2008 Stony Brook (5) MA84A-17_2008 Black Brook (5) MA84A-02_2008 Merrimack River (5) MA84A-29_2008 Lowell Canals (5) MA84A-02_2008 Merrimack River (5) MA84A-29_2008 Lowell Canals (5) MA84B-04_2008 Stony Brook (5) MA82A-09_2008 Concord River (5) MA84A-17_2008 Black Brook (5) MA84B-04_2008 Stony Brook (5) MA84B-03_2008 Stony Brook (5) MA84A-29_2008 Lowell Canals (5) MA84A-29_2008 Lowell Canals (5) MA84A-29_2008 Lowell Canals (5) MA82A-10_2008 River Meadow Brook (5) MA84A-29_2008 Lowell Canals (5) MA84A-01_2008 Merrimack River (5) MA82037_2008 Fiske Street Pond (3) MA82032_2008 Elm Street Pond (3) MA84046_2008 Newfield Pond (5) (TMDL) MA84044_2008 Nabnasset Pond (4a) (TMDL) MA82096_2008 Russell Millpond (4c) MA82059_2008 Heart Pond (5) MA82129_2008 Meadow Pond (4c) Merrimack Merrimack River River Pawtucket Pawtucket Canal Canal Northern Northern Canal Canal Nabnasset Nabnasset Lake Lake Swains Swains Pond Pond Lake Lake Freeman Freeman Lake Lake Hart Hart Pond Pond Lake Lake Russell Mill Pond Russell Mill Pond Concord River Concord River Winnings Winnings 495 3 3 40 4 225 110 133 110 27 4 38 3A 113 3A 129 Butter Brook Butter Brook Crooked Spring Crooked Spring Winning Brook Winning Brook Deep Brook Deep Brook Meadow Brook Meadow Brook Evans Evans River Meadow Brook River Meadow Brook Old Middlessex Canal Old Middlessex Canal Meadow Brook River Meadow Brook River Clay Pit Brook Clay Pit Brook Putnam Brook Putnam Brook Farley Brook Farley Brook Beaver Brook Beaver Brook Stony Brook Stony Brook Tadmuck Brook Tadmuck Brook Concord River Concord River Gilson Brook Gilson Brook Black Brook Black Brook Pond Brook Pond Brook Waterbody Assessment and TMDL Status 0 0.5 Miles Map produced by EPA Region I GIS Center Map Tracker ID 6678, February 25, 2010 Data Sources: TeleAtlas, Census Bureau, USGS, MassDEP Chelmsford, MA Waterbodies MS4 Urbanized Areas (2000 Census) Municipal Boundaries Swamp/Marsh State ID, Waterbody Name (Category) (TMDL(s) approved for this waterbody) Waterbody Label Assessment of Waterbody Segment Category 2: Attaining some uses; other uses not assessed Category 3: Insufficient information to make assessments for any use. See companion table for a listing of pollutants, non-pollutants, and TMDLs for each waterbody Notes: 1) Adapted from Final Massachusetts Year 2008 Integrated List of Waters; available at http://www.mass.gov/dep/water/resources/08list2.pdf 2) Waterbodies shown without an identified category are assigned as Category 3 by definition. 3) For additional information on TMDLs and to view reports, see: http://www.mass.gov/dep/water/resources/tmdls.htm 4) For Massachusetts Surface Water Quality Standards, and waterbody classes and uses, see: http://www.mass.gov/dep/service/regulations/314cmr04.pdf Category 4a: TMDL is completed and approved for one or more pollutants Category 4c: Impairment not caused by a pollutant. Category 5: Impaired or threatened for one or more uses and requiring a TMDL.