Lower Monumental Geographic Response Plan (SLOMO-GRP)

photo of Lower Monumental Pool

This plan covers the 29-mile reach of the Lower Monumental Pool Area (from the Little Goose Dam downstream to the Lower Monumental Dam), also known as Lake Herbert G. West within the Snake River.

View the Lower Monumental Pool GRP (Jan 1997) (PDF 5.9 MB)

Interim Updates

In between plan updates, GRP response and notification strategies are tested during drills and actual spill events. These tests, or physical changes in the area (erosion, construction, etc.), may require a change to the strategies published in the plan. Eventually these “modified” strategies will be included in an updated plan. In the meantime, the following list of pending updates should be considered before published response and notification strategies are deployed.


How to Comment

If you have any questions, suggestions for improvement, or find errors in this document, submit comments online at http://www.rrt10nwac.com/Comment, email to Ecology at GRPs@ecy.wa.gov, or forward your comments via U.S. Mail to the following agencies:

U.S. Environmental Protection Agency
Region 10
Office of Environmental Cleanup
1200 Sixth Avenue
Room ECL-116
Seattle, WA 98101

Washington State Department of Ecology
Spill Prevention, Preparedness, and Response (GRPs)
P.O. ox 47600
Olympia, WA 98504-7600