- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
WDR IL-05: 2004.
Revisions: Discharge and Stage-Discharge Model. Sep 10-Oct 21, 2024. Revised based on re-evaluation of comparison with downstream site 05572000 that determined that balance was incorrect, with 05570910 holding too much water compared to 05572000 during low flow in Sep-Oct 2024. After comparing other October periods and seeing a beaver on-site in Dec 2024, it was determined that there may have been some beaver activity at the site causing inflated discharge values. Timing of shift proration was adjusted from "a hold of the previous shift to October 16 before prorating" to "proration between September 10 and September 22." An override correction was used to estimate discharge between October 13 and November 4, 2024 based on balance with 05572000. Weather records from Cli-Mate were used in determining some minor event timings. Period minimum discharge now an estimated 0.78 cfs on October 15, 2024. Minimum discharge for the 2024 WY did not change. Revised qualifier added. - EJK 1/14/25
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1978 to current.
STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1979-91.
BIOLOGICAL
ALGAE: Water year 1997.
BENTHIC MACROINVERTEBRATES: Water year 1997.
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 13,000 ft³/s, Apr. 12, 1994, gage height, 21.58 ft; no flow several days in 1988, 1994, 1999 and 2000.
