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New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STEWARDS >  ARS >  ARS-IAWC-IAWC230

IAWC230 (ARS-IAWC-IAWC230) 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 "IAWC230" and has the identifier ARS-IAWC-IAWC230. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080105. This site has a drainage area of 863 ha.

This site is located in Story County County, Iowa at 41.9440163631 degrees latitude and -93.640977250 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-IAWC230" 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 - 2013
Organics, Pesticide 1990 - 2008
Sediment 2013 - 2013
*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-IAWC230
MonitoringLocationName IAWC230
MonitoringLocationTypeName Land Runoff
MonitoringLocationDescriptionText A 36 in. (91 cm.) tile monitoring station located 1.5 miles (2.4 km) east and ½ mile (.8 km)south of Kelley, IA in Palestine Township. Tile outlet is located 100 meters west of road, at the bottom of a horse pasture. Weekly and flow weighted runoff water samples are collected at this station. Water samples are tested for Acetochlor, Alachlor, Atrazine, Metolachlor, Simazine, nitrate, nitrite, and total phosphorus.
HUCEightDigitCode 07080105
DrainageAreaMeasure/MeasureValue 863
DrainageAreaMeasure/MeasureUnitCode ha
LatitudeMeasure 41.9440163631
LongitudeMeasure -93.640977250
HorizontalCollectionMethodName GPS Code (Pseudo Range) Differential
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 19
CountyCode 169
ProviderName STEWARDS