Authority: IC 13-14-8; IC 13-18-3; IC 13-18-17-6
Affected: IC 13-11; IC 13-13; IC 13-18; IC 14-25-7
Sec. 5.
x = t(0.95, n-1)(S/n1/2)
x = Mean of pumping data
S = Standard deviation of pumping data
t(0.95,n-1) = t statistic at 95%, n degrees of freedom
n = Number of observations
*"Guidelines for Delineation of Wellhead Protection Areas", United States Environmental Protection Agency, Office of Ground Water Protection, Washington, D.C. 20460, June 1987, EPA Publication No. 440/ 5-93-001. Copies of "Guidelines for Delineation of Wellhead Protection Areas" are available at the Indiana Department of Environmental Management, Office of Water Quality, Drinking Water Branch, Ground Water Section, 100 North Senate Avenue, Room N1255, Indianapolis, Indiana 46204.
327 IAC 8-4.1-5