(2002) Total Maximum Daily Load For Pesticides (Atrazine), West Lake (Osceola), Clarke County Iowa, August 8. 2002. Natural Resources, Department of
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Abstract
The Federal Clean Water Act 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 303(d) list as impaired by a pollutant. West Lake (Osceola) was listed as partially supporting its drinking water uses due to exceeding the water quality standard (WQS) for the pesticide (herbicide) atrazine. The TMDL for West Lake (Osceola) calculates the maximum amount of pesticide (atrazine) that can be delivered to the lake and still allow it to maintain a concentration lower than the water quality standard value of 3 μg/L. The maximum amount, or load, will then be allocated to watershed sources.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | TMDL Atrazine West Lake Osceola |
| Subjects: | Natural resources and environment > Water resources > Water quality |
| ID Code: | 52333 |
| Deposited By: | Mr Jamie Mootz |
| Deposited On: | 28 Mar 2025 18:57 |
| Last Modified: | 28 Mar 2025 18:57 |
| URI: | https://publications.iowa.gov/id/eprint/52333 |