data.iowa.gov

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Author
Iowa Department of Natural Resources
Description
Under Section 303(d) of the Clean Water Act, states are required from "time to time" to submit a list of waters for which effluent limits will not be sufficient to meet all state water quality standards. EPA has defined "time to time" to mean April 1 of even numbered years. The failure to meet water quality standards might be due to an individual pollutant, multiple pollutants, "pollution," or an unknown cause of impairment. The 303(d) listing process includes waters impaired by point sources and nonpoint sources of pollutants. States must also establish a priority ranking for the listed waters, taking into account the severity of pollution and uses. The EPA regulations that govern 303(d) listing can be found in the Code of Federal Regulations 40 CFR 130.7. The Iowa Department of Natural Resources compiles this impaired water list, or 303(d) listing. The 303(d) listing is composed of those lakes, wetlands, streams, rivers, and portions of rivers that do not meet all state water quality standards. These are considered "impaired waterbodies" and states are required to calculate total maximum daily loads (TMDLs) for pollutants causing impairments.
Category
Environmental Assessment
Tags
water quality, lakes, waterbodies, impaired list
Rating
Current value: 0 out of 5
Data Provided By
Iowa Department of Natural Resources
Source Link
ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/hydrologic/surface_waters/Impaired_lakes_2008.html
License
Public Domain
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The Socrata Open Data API (SODA) provides programmatic access to this dataset including the ability to filter, query, and aggregate data. For more more information, view the API docs for this dataset or visit our developer portal

API Endpoint:

Field Names:

WATERBODY
waterbody
WBID
wbid
the_geom
the_geom
CO_NUMBER
co_number
COUNTY
county
REGION
region
Location
location
IRCat2008
ircat_2008
IRCat2006
ircat_2006
Change2006
change_2006
DsgLake04
dsg_lake_04
WBPoint
wbpoint
PubLnd_Int
pub_lnd_int
Legend
legend
DesUse
des_use
Rationale
rationale
DataSource
data_source
Priority
priority
Comments
comments
Impairment
impairment

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