Skip to content. | Skip to navigation

Contra Costa Watershed Forum

Personal tools
You are here: Home Resources Watersheds Grayson Creek / Murderers Creek
Document Actions

Grayson Creek / Murderers Creek

Grayson Creek / Murderers Creek
Watershed Size 11020.6 acres
Length of Longest Branch of Creek 8.87 miles
Total Channel Length in Watershed 25.41 miles
Average Annual Rainfall 20 inches
Estimated Mean Daily Flow 10.64 cfs
Estimated 100-Year Flood Flow N/A cfs*
Highest Elevation in Watershed 1483 feet
Population (estimated) 58900 people
Estimated Percent Impervious 45.00%
Recognized Pollutants of Concern Diazinon
Grayson Creek / Murderers Creek