Limited availability of new USGS data; starting March 11th, 2024, there will be a period when new USGS data will not be accessible on the Water Quality Portal. Data will still be collected but will not be publicly available. This limited availability is expected to last a few weeks.
Recent USGS data will be accessible again upon release of the new Data Profiles, which will be in the WQX 3.0 format. These profiles should be available in April, 2024. Please keep an eye on banners on this website for announcements.

WQP Home >  Providers >  STEWARDS >  ARS >  ARS-IAWC-IAWC220

IAWC220 (ARS-IAWC-IAWC220) site data in the Water Quality Portal

Data Provider: STEWARDS (Learn more about Water Quality Portal Data Providers)

This land runoff site, maintained by the Agricultural Research Service (identifier ARS), has the name "IAWC220" and has the identifier ARS-IAWC-IAWC220. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080105. This site has a drainage area of 366 ha.

This site is located in Story County County, Iowa at 41.9648071384 degrees latitude and -93.679588134 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "ARS-IAWC-IAWC220" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application

Characteristic Group Date Range*
Nutrient 1990 - 2015
Organics, Pesticide 1990 - 2008
Sediment 2013 - 2015
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier ARS
OrganizationFormalName Agricultural Research Service
MonitoringLocationIdentifier ARS-IAWC-IAWC220
MonitoringLocationName IAWC220
MonitoringLocationTypeName Land Runoff
MonitoringLocationDescriptionText An agricultural drainage tile water quality and flow monitoring station located 1 mile (1.6 km) northwest of Kelley in Story county, Iowa. Weekly and flow weighted runoff water samples are collected at this station. Water samples from this site have been analyzed for Acetochlor, Alachlor, Atrazine, Metolachlor, Metribuzin, Simazine, nitrate nitrogen and total phosphorus.
HUCEightDigitCode 07080105
DrainageAreaMeasure/MeasureValue 366
DrainageAreaMeasure/MeasureUnitCode ha
LatitudeMeasure 41.9648071384
LongitudeMeasure -93.679588134
HorizontalCollectionMethodName GPS Code (Pseudo Range) Differential
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 19
CountyCode 169
ProviderName STEWARDS