LOCATION.-- Latitude 41°43'06", longitude 88°04'21" (NAD of 1927), in SW1/4NE1/4SE1/4 sec.3, T.37 N., R.10 E., Will County, Hydrologic Unit 07120004, on Royce Road 0.3 mi west of State Highway 53, and at the Bolingbrook Wastewater Treatment Facility, at Bolingbrook.

PERIOD OF RECORD.--

PRECIPITATION: July 1997 to current year.

GAGE.-- A 6-in. diameter, unheated, tipping-bucket rain gage.

REMARKS.-- Snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

EXTREMES FOR PERIOD OF RECORD.--

PRECIPITATION: Maximum daily total, 3.99 in., August 4, 1998.