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Tap water quality report

Firgrove Mutual Inc

EPA monitoring tested this supplier for 103 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

103
contaminants tested
17
detected
36,168
people served
16
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
SWP
Ownership
Private
Counties served
Pierce

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

16
health-based violations
26
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1995-07-01 → 1995-07-31
MCL Health-based Archived 1995-01-01 → 1995-01-31
MCL Health-based Archived 1994-09-01 → 1994-09-30
MCL Health-based Archived 1994-08-01 → 1994-08-31
MCL Health-based Archived 1994-07-01 → 1994-07-31
MCL Health-based Archived 1994-06-01 → 1994-06-30
MCL Health-based Archived 1994-05-01 → 1994-05-31
MCL Health-based Archived 1994-02-01 → 1994-02-28
MCL Health-based Archived 1994-02-01 → 1994-02-28
MCL Health-based Archived 1994-01-01 → 1994-01-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0054 µg/L 6/27 2024
PFOA 0.0044 µg/L 1/27 2024
PFOS 0.0086 µg/L 1/27 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3200 µg/L 32%
of the EPA limit 10000 µg/L
worst single sample: 3600 µg/L
126/156 SYR4 2012–2019
TTHM
13.22 µg/L 17%
of the EPA limit 80 µg/L
worst single sample: 16.35 µg/L
73/73 SYR4 2012–2019
Chloroform
10.28 µg/L
No EPA limit set
worst single sample: 14.12 µg/L
63/101 SYR4 2012–2019
Bromodichloromethane
3.06 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
55/102 SYR4 2012–2019
Dibromochloromethane
3.2 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
51/99 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
19.45 µg/L 32%
of the EPA limit 60 µg/L
worst single sample: 26.4 µg/L
32/88 SYR4 2012–2019
Dichloroacetic Acid
8.65 µg/L
No EPA limit set
worst single sample: 11 µg/L
31/90 SYR4 2012–2019
Trichloroacetic Acid
11.21 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
23/90 SYR4 2012–2019
Lead
0.0029 mg/L 19%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Bromoform
1.19 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
12/100 SYR4 2012–2019
Nitrate-Nitrite
3065 µg/L 31%
of the EPA limit 10000 µg/L
worst single sample: 3100 µg/L
8/13 SYR4 2012–2017
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 6/13 SYR4 2012–2017
Lead
10.4 µg/L 69%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
3/13 SYR4 2012–2017
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/13 SYR4 2012–2017
86 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Larry Jones

Frequently asked questions about Firgrove Mutual Inc

Is Firgrove Mutual Inc tap water safe to drink?

EPA monitoring detected 17 contaminants in Firgrove Mutual Inc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Firgrove Mutual Inc's water?

EPA monitoring detected Nitrate, TTHM, Chloroform, Bromodichloromethane, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Firgrove Mutual Inc serve?

Firgrove Mutual Inc reports serving 36,168 people in Washington, per its EPA record.

Has Firgrove Mutual Inc had any water quality violations?

The EPA has 26 violations on file for Firgrove Mutual Inc, of which 16 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.