Public water system · CA0310018
ActiveFirst Mace Meadows Unit No. 2
At a glance
First Mace Meadows Unit No. 2 (PWSID CA0310018) is an active community water system in Amador County, California. It reports serving 230 people through 82 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
230
Service connections
82
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does First Mace Meadows Unit No. 2 compare with other water systems in Amador County?
By EPA's size categories, First Mace Meadows Unit No. 2 is a very small system (500 people or fewer). Amador County has 67 active public water systems. Its population served is about 64% below the county average of 645 people per system, and accounts for 0.5% of the 43,217 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 First Mace Meadows Unit No. 2 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 First Mace Meadows Unit No. 2?
EPA lists First Mace Meadows Unit No. 2 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. 46 of the 67 active systems in Amador County (69%) are also privately owned.
Does First Mace Meadows Unit No. 2 have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between July 1993 and July 2025. By type: 1 reporting, 1 contaminant level above the legal limit and 1 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule Revisions, Haloacetic acids (HAA5) and Lead and Copper Rule. EPA lists 2 as resolved and 1 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2006-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 3 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.
First Mace Meadows Unit No. 2: frequently asked questions
Who runs First Mace Meadows Unit No. 2?
First Mace Meadows Unit No. 2 (PWSID CA0310018) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does First Mace Meadows Unit No. 2 serve?
First Mace Meadows Unit No. 2 reports serving 230 people through 82 service connections in Amador County, California.
Where does First Mace Meadows Unit No. 2 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 First Mace Meadows Unit No. 2 have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 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 First Mace Meadows Unit No. 2'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 records list 3 violations for this system; 1 is health-based, and the most recent began in July 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 First Mace Meadows Unit No. 2's water quality report?
As a community water system, First Mace Meadows Unit No. 2 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 Amador County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Awa Buckhorn Plant | Amador | 8,791 | Community | Surface water |
| Awa, Ione | Amador | 7,227 | Community | Surface water |
| City of Jackson | Amador | 5,019 | Community | Purchased surface water |
| Awa, Tanner | Amador | 4,940 | Community | Surface water |
| Jackson Valley Irrigation District | Amador | 3,553 | Community | Surface water |
| Awa - Camanche Village | Amador | 2,402 | 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, “First Mace Meadows Unit No. 2, PWSID CA0310018, California”, https://aquacensus.com/water-systems/california/first-mace-meadows-unit-no-2-ca0310018 (data as of October 1, 2026).