(AGENPARL) – mer 13 novembre 2024 Issued: Nov 13, 2024 (11:30am EST)
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EPA Takes Action on Iowa’s 2024 List of Impaired Waters
EPA is adding seven water segments for public comment
U.S. Environmental Protection Agency, Region 7 – 11201 Renner Blvd., Lenexa,
KS 66219
Iowa, Kansas, Missouri, Nebraska, and Nine Tribal Nations
LENEXA, KAN. (NOV. 13, 2024) – EPA has taken action on Iowa’s 2024 list of
impaired waters that do not meet applicable water quality standards and
require pollutant reduction.
Every two years, states are required to submit a report for EPA review that
characterizes the state’s surface water quality and a list of every impaired
water body.
EPA has partially approved and partially disapproved Iowa’s 2024 list of
impaired waters, called the Clean Water Act Section 303(d) list, and added
seven water segments to the list. These segments were added to Iowa’s list
for drinking water use and do not pertain to aquatic life or recreational
uses. Any local recommendations or advisories regarding their aquatic or
recreational use remain in effect.
Note: The Iowa River water segment is listed twice in the table below, because
it has two separate impairments – one for nitrate and one for nitrate plus
nitrite.
EPA’s Decision Document provides a more detailed description of EPA’s
review and the basis for this action.
Impaired Water Bodies Added to Iowa’s 2024 Section 303(d) List
Water Body ID Number
Water Body Name
Pollutant
IA 02-CED-456
Cedar River
Nitrate plus nitrite
IA 04-LDM-1011
Des Moines River
Nitrate plus nitrite
IA 04-UDM-1211
Des Moines River
Nitrate plus nitrite
IA 02-IOW-628
Iowa River
Nitrate
IA 02-IOW-628
Iowa River
Nitrate plus nitrite
IA 04-RAC-1116
Raccoon River
Nitrate plus nitrite
IA 03-SSK-927
South Skunk River
Nitrate plus nitrite
Impaired Waters and Total Maximum Daily Load
Once a water body or segment is included on an impaired waters list,
development of a Total Maximum Daily Load (TMDL) – a water restoration plan
– is necessary. A TMDL establishes the maximum amount of a pollutant allowed
in a water body and serves as the starting point or planning tool for
restoring water quality.
Public Comment Period
The seven water segments added to Iowa’s 2024 list of impaired waters
require pollutant reduction through a TMDL and are subject to a 30-day public
notice from Nov. 13 to Dec. 13, 2024. EPA requests public comment on these
seven water segments only. After public comment, EPA will issue a response to
public comments received and revise its decision, if necessary.
For additional information regarding impaired waters and TMDLs, visit EPA
Region 7’s page, EPA’s How’s My Waterway, or Iowa Department of Natural
Resources.
# # #
Learn more about EPA Region 7
Visit the Region 7 Media page
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