Westford

Chelmsford

Lowell

TyngsboroughDracut

Carlisle

Billerica

MA84A-01_2008 Merrimack River (5)

MA84A-03_2008Merrimack River (5)

MA82A-07_2008Concord River (5)

MA82A-21_2008Unnamed Tributary (2)

MA82A-08_2008Concord River (5)

MA84A-21_2008Deep Brook (5)

MA84B-04_2008Stony Brook (5)

MA84A-17_2008 Black Brook (5)

MA84A-02_2008 Merrimack River (5)

MA84A-29_2008 Lowell Canals (5)

MA84A-02_2008Merrimack River (5)

MA84A-29_2008 Lowell Canals (5)

MA84B-04_2008 Stony Brook (5)

MA82A-09_2008Concord River (5)

MA84A-17_2008Black 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_2008Lowell Canals (5)

MA82A-10_2008River Meadow Brook (5)

MA84A-29_2008 Lowell Canals (5)

MA84A-02_2008 Merrimack River (5)

MA84A-01_2008 Merrimack River (5)

MA82123_2008Winning Pond (4c)

MA82037_2008Fiske Street Pond (3)

MA82032_2008Elm Street Pond (3)

MA84046_2008Newfield Pond (5) (TMDL)

MA84044_2008Nabnasset Pond (4a) (TMDL)

MA82096_2008Russell Millpond (4c)

MA82059_2008Heart Pond (5)

MA82129_2008Meadow Pond (4c)

MerrimackMerrimackRiverRiver

PawtucketPawtucketCanalCanal

NorthernNorthernCanalCanal

NabnassetNabnassetLakeLake

SwainsSwainsPondPond

LakeLake

FreemanFreemanLakeLake

HartHartPondPond

LakeLake

Russell Mill PondRussell Mill Pond

Concord RiverConcord River

WinningsWinningsPondPond

495

3

3

40

4

225

110

133

110

27

4

38

3A

113

3A

129

Butter BrookButter Brook

Crooked SpringCrooked Spring

Winning Brook

Winning Brook

Deep BrookDeep Brook

Meadow BrookMeadow Brook

EvansEvans

River

Mead

ow B

rook

River

Mead

ow B

rook

Old Middlessex Canal

Old Middlessex Canal

Mead

ow Br

ook R

iver

Mead

ow Br

ook R

iver

Clay P

it Broo

k

Clay P

it Broo

k

Putnam Brook

Putnam Brook

Farley BrookFarley Brook

Beaver Brook

Beaver Brook

Stony

Brook

Stony

Brook

Tadmuck

Brook

Tadmuck

Brook

Concord RiverConcord River

Gilson BrookGilson Brook

Black Brook

Black Brook

Pond Brook

Pond Brook

Waterbody Assessment and TMDL Status 0 0.5Miles

Map produced by EPA Region I GIS CenterMap Tracker ID 6678, February 25, 2010

Data Sources: TeleAtlas, Census Bureau,USGS, MassDEP

Chelmsford, MAWaterbodies

MS4 Urbanized Areas (2000 Census)Municipal Boundaries

Swamp/MarshState ID,Waterbody Name (Category)(TMDL(s) approved for this waterbody)

Waterbody Label Assessment of Waterbody SegmentCategory 2: Attaining some uses; other usesnot assessedCategory 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.pdf2) 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.htm4) For Massachusetts Surface Water Quality Standards, and waterbody classesand uses, see: http://www.mass.gov/dep/service/regulations/314cmr04.pdf

Category 4a: TMDL is completed and approved for one or more pollutantsCategory 4c: Impairment not caused by a pollutant.Category 5: Impaired or threatened for one or moreuses and requiring a TMDL.