| Abstract: | Seven-day, 2-year, and 7-day, 10-year natural low flows are estimated at five continuous-record gaging stations based on streamflow records and records of wastewater effluent furnished by treatment plants. Low flows are also estimated at 22 partial-record stations by relating natural low-flow estimates for long-term stations to discharge measurements at partial-record stations. Standard error of estimates for the 27 gaged sites averaged 33 percent for 2-year estimates and 51 percent for 10-year estimates. A technique for estimating flows at ungaged stream sites is based on drainage area and indexes of streamflow recession. Streamflow-recession indexes were used to account for effects of geology on low flows. Multiple-regression analyses relates the low flows to drainage area and streamflow recession rates. Average standard errors of estimates of 61 and 97 percent were indicated for the 2-year and 10-year estimating equations, respectively. Wastewater treatment plant location and effluent discharged during 7-day low-flow periods in 1981 are presented for use in adjusting natural low-flow estimates at gaged and ungaged sites to represent 1981 streamflow conditions. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 25897 |
| Citation Author: | Allen, Howard E., Jr.; Cowan, Ellen A. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | vi, 35 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, Water Resources Division, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 84-4311 |
| Citation Search Results Text: | Low-flow characteristics of streams in the Kishwaukee River basin, Illinois; 1985; WRI; 84-4311; Allen, Howard E., Jr.; Cowan, Ellen A. |
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| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Low-flow characteristics of streams in the Kishwaukee River basin, Illinois; 1985; WRI; 84-4311; Allen, Howard E., Jr.; Cowan, Ellen A. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1984/4311/report-thumb.jpg |
| URL (INDEX PAGE): | http://il.water.usgs.gov/pubsearch/reports.cgi/view?series=WRIR&number=84-4311 |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1984/4311/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, Water Resources Division, |
