Public water system · CA0800529
ActiveRock Creek Mutual Water Co.
At a glance
Rock Creek Mutual Water Co. (PWSID CA0800529) is an active community water system in Del Norte County, California. It reports serving 60 people through 36 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
36
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Rock Creek Mutual Water Co. compare with other water systems in Del Norte County?
By EPA's size categories, Rock Creek Mutual Water Co. is a very small system (500 people or fewer). Del Norte County has 31 active public water systems. Its population served is well below the county average of 977 people per system, and accounts for 0.2% of the 30,300 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Rock Creek Mutual Water Co. is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Rock Creek Mutual Water Co.?
EPA lists Rock Creek Mutual Water Co. as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 15 of the 31 active systems in Del Norte County (48%) are also privately owned.
Does Rock Creek Mutual Water Co. have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2025. The violations listed here began between January 1984 and January 2025. By type: 9 public notice, recordkeeping or other, 2 required treatment not met and 1 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (2 of them). EPA lists 10 as archived and 2 as unaddressed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-16 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Unaddressed |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Archived |
| 1992-01-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Unaddressed |
| 1984-09-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-03-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Rock Creek Mutual Water Co.: frequently asked questions
Who runs Rock Creek Mutual Water Co.?
Rock Creek Mutual Water Co. (PWSID CA0800529) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Rock Creek Mutual Water Co. serve?
Rock Creek Mutual Water Co. reports serving 60 people through 36 service connections in Del Norte County, California.
Where does Rock Creek Mutual Water Co. get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Rock Creek Mutual Water Co. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Rock Creek Mutual Water Co.'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Rock Creek Mutual Water Co.'s water quality report?
As a community water system, Rock Creek Mutual Water Co. must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Del Norte County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Crescent City | Del Norte | 17,262 | Community | Groundwater |
| Bertsch Ocean View Csd | Del Norte | 2,605 | Community | Purchased groundwater |
| Smith River C.S.D. | Del Norte | 2,568 | Community | Groundwater |
| Jedediah Smith State Park | Del Norte | 2,208 | Transient non-community | Groundwater |
| Del Norte Coast State Park - Mill Creek | Del Norte | 1,051 | Transient non-community | Groundwater under influence of surface water |
| Gasquet C.S.D. | Del Norte | 657 | Community | Surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Rock Creek Mutual Water Co., PWSID CA0800529, California”, https://aquacensus.com/water-systems/california/rock-creek-mutual-water-co-ca0800529 (data as of October 1, 2026).