Civil procedure: statute of limitations; accrual of cause of action for groundwater contamination cases; revise. Amends 1961 PA 236 (MCL 600.101 - 600.9947) by adding sec. 5830.

SB 387 amends Michigan's Revised Judicature Act to change when legal claims for groundwater contamination must begin. It states that for cases involving hazardous substances, a claim accrues (starts counting) when the plaintiff discovers the contamination or reasonably should have discovered it. This directly affects individuals or communities seeking damages for groundwater pollution from sources like industrial spills or leaks. The key change delays the start of the statute of limitations from the contamination event to the point of discovery, making it easier for affected parties to file lawsuits after contamination is identified.