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Map produced by EPA Region I GIS Center

Map Tracker ID 4291, January 5, 2010

Data Sources: TeleAdas 2007, US Census Bureau 2000,

USGS 2009, MADEP 2008, MassGIS 2007



United States
Environmental Protection
Agency New England

N

A

Impervious Surface Area

Sterling, MA

31.61 Square Miles Total
2.16 Square Miles Impervious
6.83 % Impervious

I Mile

Legend

C3

Subwaters heds

Groundwater
Contribution Areas

Impervious Area
MS 4 Urban Area

L	!

Water Bodies

Impaired Water Segments:
Category 2

Attaining some uses;
other uses not assessed.

Category 3

Insufficient information to make
assessments for any use.

Category 4a
TMDL (Total Maximum
Daily Load) is completed.

Category 4c

Impairment not caused
by a pollutant.

Category 5

Impaired or threatened for one or
more uses and requiring a TMDL.

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