305b
Assessed River, Lake, Estuary 2022:
Connecticut
305b Assessed River 2022 is a 1:24,000-scale, line feature-based layer that
includes rivers that have been assessed to comply with Sections 305(b) and
303(d) of the federal Clean Water Act. Section 305(b) of the Clean Water Act
requires each state to monitor, assess and report on the quality of its waters
relative to attainment of designated uses established by the State's water
quality standards. Section 303(d) requires each State to compile a subset of
that list identifying only those waters not meeting water quality standards and
assign a Total Maximum Daily Load (TMDL) priority ranking to each impaired
waterbody.
This
layer is based on information collected and compiled prior to 2022. It
represents conditions at a particular point in time and does not represent
current conditions. This layer includes only rivers that were assessed in the
time period above referenced. It can be used with the 2022 Connecticut 305b
Assessed Lake layer and the Connecticut 305b Assessed Estuary layer to
geographically display attainment and non-attainment for each designated use on
assessed waters within Connecticut's boundaries.
Features
are lines that represent the locations of assessed rivers. The sources for
these features include the hydrography layer and the water quality
classification layer. Attribute information is comprised of a unique identifier
(segment ID) for each feature, the name of the waterbody, its location, the
assessment cycle (year), the water type, the water quality class goal, the
length of the feature in miles, the National Hydrography Dataset basin number,
and the assessment for the following categories: aquatic life, recreation, fish
consumption, and drinking water supply. Data is compiled at 1:24,000
scale.
Connecticut
305b Assessed Lake 2022 is a 1:24,000-scale, polygon feature-based layer that
includes lakes that have been assessed in compliance with Sections 305(b) and
303(d) of the federal Clean Water Act. Section 305(b) of the Clean Water Act
requires each state to monitor, assess and report on the quality of its waters
relative to attainment of designated uses established by the State's water
quality standards. Section 303(d) requires each State to compile a subset of
that list identifying only those waters not meeting water quality standards and
assign a Total Maximum Daily Load (TMDL) priority ranking to each impaired
waterbody.
This
layer is based on information collected and compiled prior to 2022. It
represents conditions at a particular point in time and does not represent
current conditions. This layer includes only assessed lakes. It can be used
with the 2022 Connecticut 305b Assessed River layer and the Connecticut 305b
Assessed Estuary layer to geographically display attainment and non-attainment
for each designated use on assessed waters within Connecticut's boundaries.
Features
are polygon l