(2002) Total Maximum Daily Load for Organic Enrichment, Crystal Lake, Hancock County Iowa, August 8, 2002. Natural Resources, Department of
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Abstract
The Federal Clean Water Act (CWA) requires the Iowa Department of Natural Resources (DNR) to develop a total maximum daily load (TMDL) for waters that have been identified on the state’s CWA Section 303(d) list as impaired by a pollutant. Iowa’s 1998 303(d) list, the current approved list, identifies Crystal Lake as impaired by organic enrichment. This organic enrichment is caused by excess nutrient loading to the lake as well as resuspension of nutrients within the lake. The purpose of this TMDL for Crystal Lake is to calculate the maximum amount of nutrients (organic enrichment) that the lake can receive and still meet water quality standards, and then develop an allocation of that amount of nutrients to the sources in the watershed.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | TMDL Organic Enrichment Crystal Lake |
| Subjects: | Natural resources and environment > Water resources > Water quality |
| ID Code: | 52335 |
| Deposited By: | Mr Jamie Mootz |
| Deposited On: | 28 Mar 2025 19:05 |
| Last Modified: | 28 Mar 2025 19:05 |
| URI: | https://publications.iowa.gov/id/eprint/52335 |