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Tap water quality report

Minterbrook

EPA monitoring tested this supplier for 101 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

101
contaminants tested
16
detected
5,083
people served
3
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
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.

3
health-based violations
127
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-04-01 → 2015-04-30
MCL Health-based Archived 1994-07-01 → 1994-07-31
MCL Health-based Archived 1994-07-01 → 1994-07-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31
MR Monitoring Archived 2008-01-01 → 2010-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0039 µg/L 2/13 2025
Pfhxa 0.0033 µg/L 1/13 2025
Pfpea 0.0031 µg/L 1/13 2025

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
4800 µg/L 48%
of the EPA limit 10000 µg/L
 102/156 SYR4 2012–2019
Nitrate-Nitrite
4300 µg/L 43%
of the EPA limit 10000 µg/L
 19/27 SYR4 2012–2019
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 17/27 SYR4 2012–2019
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Barium
8 µg/L 0.4%
of the EPA limit 2000 µg/L
 9/27 SYR4 2012–2019
Chromium
6 µg/L 6%
of the EPA limit 100 µg/L
 8/27 SYR4 2012–2019
Copper
3 µg/L 0.2%
of the EPA limit 1300 µg/L
 3/27 SYR4 2012–2019
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
 3/27 SYR4 2012–2019
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
 2/27 SYR4 2012–2019
Bromoform
0.7900 µg/L
No EPA limit set
 1/23 SYR4 2013–2019
Dibromochloromethane
0.7300 µg/L
No EPA limit set
 1/23 SYR4 2013–2019
Nitrite
20 µg/L 2%
of the EPA limit 1000 µg/L
 1/27 SYR4 2012–2019
TTHM
1.52 µg/L 1.9%
of the EPA limit 80 µg/L
 1/1 SYR4 2015
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEndrinEthylbenzeneFluorideHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
James Jensen

Frequently asked questions about Minterbrook

Is Minterbrook tap water safe to drink?

EPA monitoring detected 16 contaminants in Minterbrook'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 Minterbrook's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Arsenic, Lead, Barium, and others. The full list with the level and data source for each is above.

How many people does Minterbrook serve?

Minterbrook reports serving 5,083 people in Washington, per its EPA record.

Has Minterbrook had any water quality violations?

The EPA has 127 violations on file for Minterbrook, of which 3 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.