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2002 Section 303(d) List Fact Sheet for IOWA

List Status
APPROVED/DISAPPROVED by EPA on JUL-11-2003.

Click here to see metadata for this report.

Waters Listed by Waterbody Type

NOTE: Click on the underlined "Number of Waters on List" value to see a listing of those waters.
Waterbody Type Number of Waters on List
STREAM/CREEK/RIVER color.gif 112
LAKE/RESERVOIR/POND color.gif 66
NOT REPORTED color.gif 3
BRANCH color.gif 2
LAGOON color.gif 1
Total Number of Impaired Waters Reported: 184

Waters Listed by Watershed
NOTE: Click on the underlined "Watershed Name" to view a Watershed report. Click on the underlined "Number of Waters on List" value to see a listing of those waters.
Watershed Name Number of Waters on List Percent of Reported
Not Reported color.gif 122 66.30
North Raccoon color.gif 8 4.35
Lake Red Rock color.gif 5 2.72
Lower Des Moines color.gif 4 2.17
Upper Iowa color.gif 3 1.63
Little Sioux color.gif 3 1.63
Upper Des Moines color.gif 3 1.63
East Fork Des Moines color.gif 3 1.63
Middle Des Moines color.gif 3 1.63
Turkey color.gif 2 1.09
East Nishnabotna color.gif 2 1.09
Flint-Henderson color.gif 2 1.09
South Raccoon color.gif 2 1.09
North Skunk color.gif 2 1.09
Middle Cedar color.gif 2 1.09
Winnebago color.gif 2 1.09
South Skunk color.gif 2 1.09
Apple-Plum color.gif 1 .54
Lower Iowa color.gif 1 .54
Upper Chariton color.gif 1 .54
Thompson color.gif 1 .54
Boyer color.gif 1 .54
Big Papillion-Mosquito color.gif 1 .54
Floyd color.gif 1 .54
Lower Big Sioux color.gif 1 .54
Boone color.gif 1 .54
Middle Iowa color.gif 1 .54
Lower Cedar color.gif 1 .54
West Fork Cedar color.gif 1 .54
Shell Rock color.gif 1 .54
Maquoketa color.gif 1 .54
Skunk color.gif 1 .54
Copperas-Duck color.gif 1 .54
Total Number of Impaired Waters Reported: 184
Click on the map above for an interactive Enviromapper session!

Impairments
NOTE: Click on the underlined "Impairments Reported" value to see a listing of those waters with the impairment. Click on the underlined "General Impairment Name" to see the detailed state reported impairment names.
General Impairment Name Impairments Reported Percent of Reported
CAUSE UNKNOWN color.gif 55 19.86
PATHOGENS color.gif 38 13.72
OTHER HABITAT ALTERATIONS color.gif 35 12.64
ORGANIC ENRICHMENT/LOW DO color.gif 24 8.66
NUTRIENTS color.gif 23 8.30
TURBIDITY color.gif 22 7.94
SEDIMENT/SILTATION color.gif 21 7.58
ALGAL GRWTH/CHLOROPHYLL A color.gif 15 5.42
NOXIOUS AQUATIC PLANTS color.gif 13 4.69
PESTICIDES color.gif 11 3.97
EXOTIC SPECIES color.gif 4 1.44
UNIONIZED AMMONIA color.gif 4 1.44
PRIORITY ORGANICS color.gif 3 1.08
METALS color.gif 3 1.08
SUSPENDED SOLIDS color.gif 2 .72
CHLORINE color.gif 1 .36
FLOW ALTERATION color.gif 1 .36
OTHER CAUSE color.gif 1 .36
THERMAL MODIFICATIONS color.gif 1 .36
Total Number of Impairments Reported: 277

Impairment Priorities
NOTE: Click on the underlined "Impairments Reported" value to see a listing of those waters with that impairment priority.
Priority Impairments Reported Percent of Reported
M color.gif 49 17.69
L color.gif 45 16.25
NOT REPORTED color.gif 43 15.52
LOW color.gif 36 13.00
H color.gif 34 12.27
HIGH color.gif 29 10.47
MEDIUM/LOW color.gif 27 9.75
MEDIUM color.gif 14 5.05
Total Number of Impairments Reported: 277

Approved TMDLs by Pollutant since January 1, 1996
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs Approved" value to see a listing of those approved TMDLs for the pollutant. EPA is in the process of collecting TMDL information from the states. Because these efforts are on-going, there may be additional approved TMDLs that were not included in the listings below.
Pollutant Number of TMDLs Approved Percent of Reported
SILTATION color.gif 17 48.57
NUTRIENTS color.gif 7 20.00
ORGANIC ENRICHMENT color.gif 4 11.43
ATRAZINE color.gif 2 5.71
TURBIDITY color.gif 2 5.71
AMMONIA color.gif 1 2.86
CHLORDANE (FISH TISSUE) color.gif 1 2.86
NOX color.gif 1 2.86
Total Number of TMDLs Reported to EPA since January 1, 1996: 35

Approved TMDLS by EPA Fiscal Year (October 1 through September 30) since October 1, 1995
Fiscal Year Number of TMDLs Approved Percent Approved
2001 color.gif 10 28.57
2002 color.gif 9 25.71
2003 color.gif 16 45.71

TMDL Document Search

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External Links
The following agencies may also have relevant environmental information:
U. S. Geological Survey Data Exiting EPA Website
Iowa Environmental Protection Division Exiting EPA Website

 

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