Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 615 - EXISTING ACTIVITIES IN A SETBACK ZONE OR REGULATED RECHARGE AREA
Subpart B - GROUNDWATER MONITORING REQUIREMENTS
Section 615.205 - Groundwater Monitoring Program
Current through Register Vol. 48, No. 38, September 20, 2024
The owner or operator must develop a groundwater monitoring program that consists of:
a) Consistent sampling and analysis procedures that are designed to ensure monitoring results that provide a reliable indication of groundwater quality below the unit. At a minimum, the program must include procedures and techniques for:
b) Sampling and analytical methods that are appropriate for groundwater monitoring and that allow for detection and quantification of contaminants specified in this Subpart, and that are consistent with the sampling and analytical methods specified in 35 Ill. Adm. Code 620.
c) A determination of the groundwater head elevation each time groundwater is sampled. A determination of the groundwater head elevation is not required for samples taken from a potable well used as a monitoring well under Section 615.204(b).
d) A determination at least annually of the groundwater flow rate and direction.
e) If the owner or operator determines that the groundwater monitoring program no longer satisfies the requirements of this Section, the owner or operator must, within 90 days, make appropriate changes to the program and must notify the Agency of the changes when submitting the groundwater monitoring reports under Section 615.208.
