Public water system · WA5325200
ActiveFirgrove Mutual Inc.
At a glance
Firgrove Mutual Inc. (PWSID WA5325200) is an active community water system in Pierce County, Washington. It reports serving 36,168 people through 13,317 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2006.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
36,168
Service connections
13,317
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Firgrove Mutual Inc. compare with other water systems in Pierce County?
By EPA's size categories, Firgrove Mutual Inc. is a large system (10,001 to 100,000 people). Pierce County has 358 active public water systems, and Firgrove Mutual Inc. is the 6th-largest of them by population served. Its population served is about 11 times the county average of 3,335 people per system, and accounts for 3% of the 1,193,797 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active community water system reports serving 6,703 people, so Firgrove Mutual Inc. is about 5.4 times 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. Washington has 2,392 active community water systems, 51% of the state's 4,705 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 130 Washington systems (2.8%) list purchased surface water as their primary source.
Who owns and regulates Firgrove Mutual Inc.?
EPA lists Firgrove Mutual Inc. as privately owned. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 257 of the 358 active systems in Pierce County (72%) are also privately owned.
Does Firgrove Mutual Inc. have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2006. The violations listed here began between September 1993 and January 2006. By type: 10 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 of them). EPA lists 11 as archived and 1 as resolved. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1995-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-10-19 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Firgrove Mutual Inc.: frequently asked questions
Who runs Firgrove Mutual Inc.?
Firgrove Mutual Inc. (PWSID WA5325200) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Firgrove Mutual Inc. serve?
Firgrove Mutual Inc. reports serving 36,168 people through 13,317 service connections in Pierce County, Washington.
Where does Firgrove Mutual Inc. 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 Firgrove Mutual Inc. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2006. 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 Firgrove Mutual Inc.'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, 10 are health-based, and the most recent began in January 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Firgrove Mutual Inc.'s water quality report?
As a community water system, Firgrove Mutual Inc. 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 Pierce County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tacoma Water Division City of | Pierce | 446,170 | Community | Surface water |
| Puyallup City of | Pierce | 94,520 | Community | Purchased surface water |
| Lakewood Water District | Pierce | 82,425 | Community | Groundwater |
| Southwood | Pierce | 64,155 | Community | Purchased surface water |
| Bonney Lake Water Department City | Pierce | 43,371 | Community | Purchased surface water |
| Jblm Lewis | Pierce | 35,414 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Firgrove Mutual Inc., PWSID WA5325200, Washington”, https://aquacensus.com/water-systems/washington/firgrove-mutual-inc-wa5325200 (data as of October 1, 2026).