Includes work conducted in 2006-07 , AND 07-08 under 303(d) List Helsel-SWAT


The goal of this project is to undertake a region wide inventory of selected West Central Region wadeable streams for inclusion on the 303d impaired waterÂ’s list. Biological and chemical information targeting exceedances of state water quality standards will be collected between June and August by regional biologists assisted by a region wide SWAT team of LTEs. This information will be used to determine if any of these streams should be listed on the 303d list. This project request supports two LTEs for 2-3 field days per week between June and August (192 hours each). WCR expects to primarily use LTEs currently hired to perform baseline monitoring as part of the fisheries team. The LTEs will assist the basin water quality biologist with the collection of fishery surveys, continuous dissolved oxygen and temperature monitoring, pH, transparency tube, and stream habitat. Basin water quality biologists will prioritize monitoring of stream sites anticipated to exceed state water quality standards by based upon existing baseline wadeable stream data and their knowledge of basin streams. Approximately 48 to 60 sites will be evaluated (2 to 3 per day). Fishery and habitat surveys will follow the baseline wadeable stream protocol and an index of biotic integrity will be calculated for each site. Continuous dissolved oxygen monitoring will be completed in mid to late summer. At each site, a synoptic water chemistry survey will be completed on 48 stream sites. Parameters collected include; BOD, suspended solids, nutrients and chlorophyll a. The water chemistry data will be used in conjunction with the dissolved oxygen and temperature data. Continuous dissolved oxygen meters will be deploy for 1 week periods and rotated between approximately half the sites (24).


Since Tier I baseline monitoring site selection has recently been changed to random sites, WCR biologists have proposed this Tier II monitoring project to collect information from targeted streams where there are anticipated standard exceedances. The collection of fish, water chemistry and continuous dissolved oxygen data will also provide an opportunity to evaluate the new TALU system the Department has drafted. Field meters have been requested to support the regional SWAT team including a field DO, pH and conductivity meter, two continuous DO recording meters with peripherals. A mini-stream boat shocker is also requested due to the limited access of backpack and stream boat shockers in the WCR. 3. Performance Measure(s) (including sample collection, report completion date, etc.): Data collected will be evaluated using the TALU tables to determine if these streams should be listed or de-listed on the 303 (d) list. This monitoring will also provide data to aid in the future selection of eco-region reference sites. Biological, chemical and habitat data will be available by the end of summer. A final summary report will be completed for the project after all data is analyzed including fishery, habitat, temperature and continuous dissolved oxygen data.

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