Idaho Admin. Code r. 02.03.01.150

Current through August 31, 2023
Section 02.03.01.150 - GROUND WATER QUALITY REFERENCE POINTS
01.Reference Points. The Director will use reference points for pesticides in ground water, based on the following order of availability: (3-31-22)
a. Idaho rules of DEQ, IDAPA 58.01.11, "Ground Water Quality," Subsection 200.01.a. specific to pesticide primary constituent standards which were adopted from EPA MCLs; or (3-31-22)
b. EPA Health Advisory Levels (HALs) identified in the 2006 Edition of the EPA Drinking Water Standards and Health Advisories, EPA 822-R-06-013; or (3-31-22)
c. EPA Reference Dose (RfD) identified in the 2006 Edition of the EPA Drinking Water Standards and Health Advisories, EPA 822-R-06-013; or (3-31-22)
d. A reference point based on: (3-31-22)
i. Best scientific information currently available on adverse effects of the contaminant(s); and (3-31-22)
ii. Protection of a beneficial use(s); and (3-31-22)
iii. Practical quantitation levels for the pesticides, if they exceed the levels identified in IDAPA 58.01.11, "Ground Water Quality Rule," Subsection 200.01.a. (3-31-22)
02.HAL and RfD Guide. The Director shall use the EPA's HAL and RfD number associated with the effects on a person weighing seventy (70) kilograms and drinking two (2) liters of water per day over a lifetime. (3-31-22)

Idaho Admin. Code r. 02.03.01.150