(AGRICULTURE)

Improve infrastructure to be more operational, flexible, decrease risk of drought impacts, and are economically sustainable. Ensure current interruptible agricultural users have a firm water supply.

Eightmile Lake is one of four Alpine Lakes managed by Icicle Peshastin Irrigation District (IPID) for irrigation water supply.  The lake was altered to manage the release of water stored for irrigation water supply in 1929.

For nearly 100 years, five high lake reservoirs located in the Alpine Lakes Wilderness have provided water supplies for agriculture and fish production. The outlet structures that control the release of water from these lakes, were constructed between 1929 and 1949 and are now outdated.

The IPID diversion fish screen was replaced based on current design criteria and fish protection requirements accepted by Washington Department of Fish and Wildlife and the National Marine Fisheries Service.

COIC has continuously diverted water from Icicle Creek at river mile 4.5 through a shared diversion with the Leavenworth National Fish Hatchery (LNFH) since 1940.