Public water system · CA3200510
ActiveIvcsd Crescent Mills
At a glance
Ivcsd Crescent Mills (PWSID CA3200510) is an active community water system in Plumas County, California. It reports serving 258 people through 75 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
258
Service connections
75
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ivcsd Crescent Mills compare with other water systems in Plumas County?
By EPA's size categories, Ivcsd Crescent Mills is a very small system (500 people or fewer). Plumas County has 108 active public water systems. Its population served is about 15% below the county average of 303 people per system, and accounts for 0.8% of the 32,740 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 Ivcsd Crescent Mills 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Ivcsd Crescent Mills?
EPA lists Ivcsd Crescent Mills 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. 19 of the 108 active systems in Plumas County (18%) are also owned by a local government.
Does Ivcsd Crescent Mills have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2013. The violations listed here began between October 1980 and June 2013. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Gross alpha (excluding radon and uranium) (2 of them). EPA lists 2 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1981-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1980-10-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 4 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.
Ivcsd Crescent Mills: frequently asked questions
Who runs Ivcsd Crescent Mills?
Ivcsd Crescent Mills (PWSID CA3200510) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Ivcsd Crescent Mills serve?
Ivcsd Crescent Mills reports serving 258 people through 75 service connections in Plumas County, California.
Where does Ivcsd Crescent Mills get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Ivcsd Crescent Mills have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2013. 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 Ivcsd Crescent Mills' 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 records list 4 violations for this system; none is health-based, and the most recent began in June 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Ivcsd Crescent Mills' water quality report?
As a community water system, Ivcsd Crescent Mills 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 Plumas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lake Almanor Country Club Mwc | Plumas | 6,000 | Community | Groundwater |
| American Valley Csd | Plumas | 3,778 | Community | Groundwater |
| Chester Public U.D. | Plumas | 2,187 | Community | Groundwater |
| City of Portola | Plumas | 2,100 | Community | Purchased surface water |
| Hamilton Branch Csd | Plumas | 1,874 | Community | Groundwater |
| Plumas Eureka Csd | Plumas | 1,534 | Community | Groundwater |
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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, “Ivcsd Crescent Mills, PWSID CA3200510, California”, https://aquacensus.com/water-systems/california/ivcsd-crescent-mills-ca3200510 (data as of October 1, 2026).