EPA's homepage provides links by topic to a wide range of resources including air, agriculture, hazardous substances, human health, recycling, water, etc. Users can drill down to find very detailed information. The "Databases and Software" link under "Information Sources" is useful for getting directly to data sources and tools.
This EPA site provides direct access to selected EPA databases on air, water, and land resources. Information is available to the county, city, and zipcode levels. Users can also download geospatial data. Highly sophisticated SQL users can register with EPA to obtain direct access to the Envirofacts database through Open Access.
TRI is a database containing data on disposal or other releases of over 650 toxic chemicals from thousands of U.S. facilities and information about how facilities manage those chemicals through recycling, energy recovery, and treatment. One of TRI's primary purposes is to inform communities about toxic chemical releases to the environment.
The Web Soil Survey provides detailed soil data for specific sites or addresses.
Soil descriptions, and Soil Data Mart downloads and data, including GIS formats.
This U.S. Bureau of Reclamation site has water data for the 9-state region including Kansas. The Hydromet system contains hydrologic and meteorologic data for established monitoring stations. The AgriMet system contains agricultural weather information (Montana only). The site also contains water management information for the region's lakes and reservoirs.
This USGS site provides a comprehensive set of digital spatial data about U.S. surface water. Data is available in two datasets: high resolution (1:24,000 scale topographic) and medium resolution (1:100,000 scale topographic). Data is intended to be downloaded for use with GIS software. The site also contains links to online tools and tutorials.
This site provides Kansas water rights data by geography or water right file number and type of use. In addition, there are options to summarize quantity, create a map, display development or water use trends, and download data. The site also provides an online user manual. The information is derived from the Kansas Department of Agriculture's Division of Water Resources. Some restrictions apply: the site doesn't indicate whether a water right is in good standing, the site cannot be used for sales or marketing purposes (K.S.A. 45-220(c)(2)), and users must enter their email address to comply with the Kansas Open Records Act.
This site provides an easy inventory, by state, of Water Resources Data reports. Reports can be downloaded in pdf format.