Tap and WellTreasure Valley water, from the public record

Total Trihalomethanes in Robie Creek water

1 system serving Robie Creek detected Total Trihalomethanes in the last 36 months. The federal MCL is 80.0ppb.

System36 mo maxLatestStatusLast sample
Wilderness Ranch Owners Association Inc.122.0ppb39.6ppbDetected2026-06-24
Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.EPA, quoted. This site does not paraphrase health guidance.

Total Trihalomethanes in Treasure Valley drinking water. Robie Creek water quality.

Numbers are the system's samples at its taps and wells, not yours. Lead and copper are 90th percentiles from sampled homes. Well pages are nearby-sample estimates. Health text restates EPA and DEQ. Methodology.