Gswc-South Arcadia, CA Water Quality
What's in Gswc-South Arcadia's water?
Gswc-South Arcadia's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 27,072 people through 7,666 service connections.
Ranked against every other system in this dataset
2 total violations and 0 health-based ones put Gswc-South Arcadia at the 8th percentile nationally for violation burden, rank 11,918 of 12,903.
How Gswc-South Arcadia compares within CA
Among the 804 CA systems in this dataset, the average is 5.8 health-based violations - Gswc-South Arcadia's 0 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Gswc-South Arcadia is from 2001-08-06. Last reported to EPA: 06/22/2026.
What this data is and is not
Gswc-South Arcadia's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 0 health-based violations on file for Gswc-South Arcadia - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.