What's in JOINT REGIONAL WATER SUPPLY SYSTEM's water?

JOINT REGIONAL WATER SUPPLY SYSTEM has no violations on record in EPA's SDWIS data. 3,947 people get their water from it, across 44 connections.

JOINT REGIONAL WATER SUPPLY SYSTEM's record against the rest of the country

Out of 12,903 systems in this dataset, JOINT REGIONAL WATER SUPPLY SYSTEM ranks 12,784th by violation burden (1th percentile) - 0 violations total, 0 health-baseds.

How JOINT REGIONAL WATER SUPPLY SYSTEM compares within CA

CA's 803 covered systems average 5.8 health-based violations each; JOINT REGIONAL WATER SUPPLY SYSTEM carries 0, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Why "no violations" needs a caveat here

JOINT REGIONAL WATER SUPPLY SYSTEM serves 3,947 people. EPA requires smaller systems to test less often than large ones, so a clean record here is real but weaker evidence than the same record on a system serving hundreds of thousands - fewer tests means fewer chances to catch a problem. See the guide to reading a clean record for what that does and does not tell you.

What this data is and is not

JOINT REGIONAL WATER SUPPLY SYSTEM'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 JOINT REGIONAL WATER SUPPLY SYSTEM - 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.