Public water system · CA0710010
ActiveRandall-Bold Water Treatment Plant
At a glance
Randall-Bold Water Treatment Plant (PWSID CA0710010) is an active community water system in Contra Costa County, California. It reports serving 1 people through 1 service connection. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1
Service connections
1
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Randall-Bold Water Treatment Plant compare with other water systems in Contra Costa County?
By EPA's size categories, Randall-Bold Water Treatment Plant is a very small system (500 people or fewer). Contra Costa County has 84 active public water systems. Its population served is well below the county average of 6,726 people per system, and accounts for less than 0.1% of the 564,952 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 Randall-Bold Water Treatment Plant 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Randall-Bold Water Treatment Plant?
EPA lists Randall-Bold Water Treatment Plant as owned by a local government. 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. 25 of the 84 active systems in Contra Costa County (30%) are also owned by a local government.
Does Randall-Bold Water Treatment Plant have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Randall-Bold Water Treatment Plant. For the latest compliance status, check EPA ECHO for current compliance history.
Randall-Bold Water Treatment Plant: frequently asked questions
Who runs Randall-Bold Water Treatment Plant?
Randall-Bold Water Treatment Plant (PWSID CA0710010) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Randall-Bold Water Treatment Plant serve?
Randall-Bold Water Treatment Plant reports serving 1 people through 1 service connection in Contra Costa County, California.
Where does Randall-Bold Water Treatment Plant get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Randall-Bold Water Treatment Plant have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Randall-Bold Water Treatment Plant'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. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Randall-Bold Water Treatment Plant's water quality report?
As a community water system, Randall-Bold Water Treatment Plant 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 Contra Costa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Contra Costa Water District | Contra Costa | 198,000 | Community | Surface water |
| City of Antioch | Contra Costa | 115,074 | Community | Surface water |
| Brentwood | Contra Costa | 64,513 | Community | Purchased surface water |
| City of Pittsburg | Contra Costa | 62,500 | Community | Purchased surface water |
| Diablo Water District | Contra Costa | 43,357 | Community | Purchased surface water |
| City of Martinez | Contra Costa | 30,997 | Community | Purchased 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, “Randall-Bold Water Treatment Plant, PWSID CA0710010, California”, https://aquacensus.com/water-systems/california/randall-bold-water-treatment-plant-ca0710010 (data as of October 1, 2026).