Community Water System · PWSID CA0800529

Rock Creek Mutual Water Co.

Serves 60 peopleSurface WaterOwner: PrivateCrescent City, California
2 open treatment violations.

Open for: Surface water treatment (SWTR). EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 1992: 2 violations. 2 treatment lapses. Most recent began 2025-01-16.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
2Treatment lapse2 open
0Missed or late test
0Notice or report

More violations on record than 52% of active water systems in California. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1992 · Treatment lapse: 11995200020052010201520202025 · Treatment lapse: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
100% treatment lapse · 2

Across California, 52% of violations are missed or late tests and 29% are water over a limit.

Open now (2)

  1. 2025-01-16Surface water treatment (SWTR)Failure to Filter (SWTR)Open
  2. 1992-01-01Surface water treatment (SWTR)Failure to Filter (SWTR)Open

Every violation on record

  1. 2025-01-16Surface water treatment (SWTR)Failure to Filter (SWTR)Open
  2. 1992-01-01Surface water treatment (SWTR)Failure to Filter (SWTR)Open

System details

Population served60
Service connections36
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCrescent City
EPA ZIP on file95531

Areas served

  • Del Norte County

Reading this record

Rock Creek Mutual Water Co. is a community water system that draws from surface water and serves about 60 people in Crescent City, California. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.