Graphical method for estimating occurrence and duration of a critical low flow in the Sacramento River at Freeport, California
Water-Resources Investigations Report
82-4001
By: J.G. Harmon
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Abstract
Sacramento County expects to begin operation of the Sacramento Regional Wastewater Treatment Plant in 1982. The California State Water Resources Control Board has ruled that the plant will not be allowed to release effluent into the Sacramento River when flow in the river is 4,000 cubic feet per second or less. Depending on tide condition, flows less than 4,000 cubic feet per second may occur either once or twice during each 24-hour 50-minute tide cycle when the daily mean flow is less than about 12,000 cubic feet per second. Daily means flows less than 12,000 cubic feet per second occur about 28% of the time. Riverflow at the plant outfall is monitored by an acoustic streamflow-measuring system. Regulation of effluent released from the plant will normally be based on real-time flow data computed by the acoustic system. A graphical method for determining the occurrence and duration of flows of 4,000 cubic feet per second and less was developed as a backup system to be used if a temporary failure in the acoustic system occurs. (USGS)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Graphical method for estimating occurrence and duration of a critical low flow in the Sacramento River at Freeport, California |
| Series title | Water-Resources Investigations Report |
| Series number | 82-4001 |
| DOI | 10.3133/wri824001 |
| Edition | - |
| Year Published | 1983 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, Water Resources Division, |
| Description | iv, 20 p. :ill., maps ;28 cm. |
| Google Analytic Metrics | Metrics page |