OCR error (C:\Conversion\JobRoot\00000A0T\tiff\2000U1ZY.tif): Unspecified error
-------
Providing the Public with Better Information: More Comprehensive Lists
/ Lists would provide a comprehensive identification of all waterbodies impaired or threatened by
pollution and pollutants.
/ Lists must include waterbodies impaired by all sources: point and nonpoint sources, air deposition,
and natural background conditions.
/ Lists would be composed of four parts, with TMDLs being developed for part 1 only:
Part 1 - waterbodies impaired or threatened by one or more pollutants or by an unknown cause;
Part 2 - waterbodies impaired or threatened by pollution;
Part 3 - waterbodies with EPA approved or established TMDLs and water quality standards not
attained; and
Part 4 - waterbodies expected to reach water quality standards by next listing cycle.
Promoting Consistency: Clear Listing Methodology
/ States would list waterbodies according to a methodology that explains to the public and EPA how
existing and readily available data is used to identify impaired waterbodies.
/ Public participation would be required in developing this methodology
/ EPA approval of the methodology
would not be required, but EPA
approval of the list would still be
required.
Schedules and Priorities
/ Lists would be divided into high,
medium, and low priority
waterbodies, based on severity of
the pollution and the uses of the
waterbody.
/ Some impaired waters that are
drinking water sources or have
endangered or threatened species
would receive high priority.
/ Lists would contain schedules for
establishing TMDLs for each
individual waterbody, phased over
a 15 year period with high priority
waters first.
/ Waterbodies would remain on the
state, territory, or tribal lists
until water quality standards have
been achieved.
For More Information including
state lists and maps &
proposed regulations,
see EPA's TMbL homepage -
http: //www. epa. go v/owow/tmd I
1998 Impaired River and Shoreline Miles
200,000
180,000
160,000
140,000
120,000
100,000
80,000
60,000
40,000
20,000
0
N P TMTO M PSO
Impairment Type
s Sedimentation
I Nutrients
D Pathogens
D Toxics/Metals/lnorganics
I Toxics/Organics
0 Mercury
I Pesticides
D Other
1998 Impaired Lake Acres
8,000,000
7,000,000
6,000,000
5,000,000
4,000,000
3,000,000
2,000,000
1,000,000
N P TM TO M PS O
Impairment Type
a Sedimentation
(Nutrients
D Pathogens
DTox ics/M eta Is/Inorganics
iToxics/Organics
0 Mercury
(Pesticides
0 Other
Please note that waterbodies may be impaired by
more than one pollutant. "Other" includes: metals,
temperature, pH, habitat degradation, etc.
------- |