US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 615 — EXISTING ACTIVITIES IN A SETBACK ZONE OR REGULATED RECHARGE AREASubpart J615.62235 Ill. Adm. Code 615.622Groundwater MonitoringLast amended: 2023Year: 2026Length: 18 wordsOfficial source Section 615 Section 615.622 Groundwater Monitoring The owner or operator must comply with the requirements of Subpart B.Previous35 Ill. Adm. Code 615.621Next35 Ill. Adm. Code 615.623