Monitoring Program Methodology
Methods of sampling and analysis conform to the Quality Assurance Project Plan submitted to the IDEM (ARN #
A 305-1-00-206) in June of 2002.
Physical Parameter Methods
Data logging precipitation gauges have been installed in all three subwatersheds to measure the timing and depth
of precipitation. The precipitation gauge consists of two major components, a tipping bucket precipitation collector
and a HOBO event data logger. The water enters the gauge, is funneled in a downward motion and is deposited
onto the tipping bucket. The bucket tips with each 0.01 inch of rain and the water flows out of the bottom of the
precipitation gauge. The data logger will record the date and time of each tip. The data loggers information was
downloaded and exported using BoxCar 4.0 software.
Water Level Measurements
Two Global Water WL-15 water level loggers were installed in the Killbuck Creek and Buck Creek
Subwatersheds. This instrument has a submersible sensor that is connected to a data logger housed in PVC pipe.
Slits were made in the vertical portions of the PVC pipe placed in the stream to allow water to enter the pipe. The
data was downloaded (using the Global Water software) to a personal computer. The data was extracted into a
Microsoft Excel spreadsheet to display the difference in the water levels at a given time and day. The water level
loggers are located near the Killbuck Creek subwatershed by CR 650 North and 450 West near the Cardinal
Greenway and at Buck Creek subwatershed at sampling site BC-3.
The rate of flow, or discharge, of a stream is the quantity of water flowing past a cross section of the stream in a
unit of time. Discharge in the subwatersheds was accomplished by measuring the water depth and stream velocity
for several stream subsections. The first step is to measure the width of a cross section in the subwatershed from
bank to bank and separate the widt