Stream Water Quality Summary, 2000-2013

Summary of stream water quality data collected from 2000 through 2013.

Stream Water Quality Summary, 2014

Summary of stream water quality data collected in 2014.

Stream Water Quality Summary, 2000-2014

Summary of stream water quality data collected from 2000 through 2014.

Water Quality Monitoring Report - 2005-2009 Monitoring of Prairie Pothole Wetlands

Prior to European settlement, wetland basins covered 4 to 6 million acres, or approximately 11% of Iowa's surface area. Wetlands were part of every watershed in the state, but nearly 95% of them have been drained for agriculture. As Iowa was settled wetlands were drained and developed, resulting in the loss of wildlife habitat, damage to water quality, rapid topsoil erosion, and increased incidents and severity of flooding. The condition of Iowa’s remaining wetlands is poorly known. The goal of this project was to assess the ecological condition of prairie pothole wetlands in a defined region of north-central Iowa. This project has worked to develop and establish our wetland sampling methods, while providing baseline data regarding the basic chemical, physical, and biological status of Iowa’s permanent and semi-permanent wetland resources. The baseline data obtained from our monitoring methods is mainly in the form of numerical values derived from the lab analyses of our samples. This data will be used to begin building a database to interpret ecological condition changes in Iowa’s wetlands as the sampling regime and assessment methodology are repeated over time.

2014 Lake Water Quality Summary

Summary of lake water quality data collected in 2014 as part of the Iowa DNR's lake monitoring program.

2000-2014 Lake Water Quality Summary

Summary of lake water quality data collected from 2000 through 2014 for lakes statewide monitored as part of the Iowa DNR's lake monitoring program.

2015 Lake Water Quality Summary

Summary of the 2015 water quality data collected from 138 lakes across Iowa as part of the Iowa Department of Natural Resources lake monitoring program.

2000-2015 Lake Water Quality Summary

Summary of the 2000-2015 water quality data collected from 138 lakes across Iowa as part of the Iowa Department of Natural Resources lake monitoring program.

Results from Water Quality Monitoring Conducted during Project AWARE 2016 on the Lower Des Moines River in Southeast Iowa

This reports summarized the IOWATER water quality monitoring conducted during the 2016 Project AWARE on the lower Des Moines River in southeast Iowa.

Stream Water Quality Summary, 2000-2015

Summary of stream water quality data collected from 2000 through 2015

Stream Water Quality Summary, 2015

Summary of stream water quality data collected in 2015.

The Iowa water quality initiative : better water for a better Iowa, 2000

An overview on how to maintain an efficient food production system while protecting Iowa's natural resources.

FY2015 Ambient Groundwater Quality Monitoring Summary, September 3, 2015

This report summarizes the results of groundwater monitoring that took place from October 2014 - April 2015. Raw, untreated groundwater was sampled from forty-five municipal wells generall characterized as vulnerable to contamination from surface activities. Samples were analyzed for basic water quality parameters, nutrients, atrazine and two of its breakdown products, chloroacetanilide herbicides and their ethanesulfonic and oxanalic acid degradates, and a suite of sixteen pharmaceutical compounds.

IDNR Ambient Groundwater Quality Monitoring: Summary for Fiscal Year 2016, August 31, 2016

This report summarizes the results of groundwater quality monitoring conducted at 68 public water supply wells in Iowa between October 2015 and March 2016. Raw groundwater samples were analyzed for basic water quality parameters, nutrients, atrazine and its degradates, and chloroacetanilide herbicides and their ethanesulfonic and oxanilic acid degradates. In addition, a subset of samples were analyzed for radionuclides including gross alpha and gross beta radioactivity, radium-226, and radium-228.

Stream water‐quality monitoring conducted in support of the Iowa Nutrient Reduction Strategy (2016)

Monitoring of nitrogen and phosphorus in streams and rivers throughout Iowa is an essential element of the Iowa Nutrient Reduction Strategy (INRS). Sampling and analysis of surface water is necessary to develop periodic estimates of the amounts of nitrogen and phosphorus transported from Iowa. Surface and groundwater monitoring provides the scientific evidence needed to document the effectiveness of nutrient reduction practices and the impact they have on water quality. Lastly, monitoring data informs decisions about where and how best to implement nutrient reduction practices, by both point sources and nonpoint sources, to provide the greatest benefit at the least cost. The impetus for this report comes from the Water Resources Coordination Council (WRCC) which states in its 2014‐15 Annual Report “Efforts are underway to improve understanding of the multiple nutrient monitoring efforts that may be available and can be compared to the nutrient WQ monitoring framework to identify opportunities and potential data gaps to better coordinate and prioritize future nutrient monitoring efforts.” This report is the culmination of those efforts.