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Tap water quality report

Quimper

EPA monitoring tested this supplier for 107 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

107
contaminants tested
18
detected
14,548
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Jefferson

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.

0
health-based violations
672
violations on file
1
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2018-07-01
Other Monitoring Resolved 2015-07-01
Other Monitoring Resolved 2013-07-01
Other Monitoring Resolved 2012-07-01
MR Monitoring Resolved 2012-01-01 → 2012-12-31
MR Monitoring Resolved 2012-01-01 → 2012-12-31
MR Monitoring Resolved 2010-01-01 → 2010-12-31
MR Monitoring Resolved 2010-01-01 → 2010-12-31
MR Monitoring Resolved 2010-01-01 → 2010-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0031 µg/L 1/16 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
2200 µg/L 22%
of the EPA limit 10000 µg/L
worst single sample: 2450 µg/L
50/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
52.26 µg/L 87%
of the EPA limit 60 µg/L
worst single sample: 64.6 µg/L
35/36 SYR4 2012–2019
Trichloroacetic Acid
29.08 µg/L
No EPA limit set
worst single sample: 38.1 µg/L
33/37 SYR4 2012–2019
Dichloroacetic Acid
22.745 µg/L
No EPA limit set
worst single sample: 28 µg/L
32/37 SYR4 2012–2019
Chloroform
66.65 µg/L
No EPA limit set
worst single sample: 81.5 µg/L
31/41 SYR4 2012–2019
TTHM
77.4 µg/L 97%
of the EPA limit 80 µg/L
worst single sample: 87.8 µg/L
31/31 SYR4 2012–2019
Bromodichloromethane
9 µg/L
No EPA limit set
worst single sample: 13.8 µg/L
29/41 SYR4 2012–2019
Dibromochloromethane
5.14 µg/L
No EPA limit set
worst single sample: 5.7 µg/L
25/41 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Bromoform
1.0415 µg/L
No EPA limit set
worst single sample: 1.1 µg/L
10/41 SYR4 2012–2019
Dibromoacetic Acid
1.465 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
8/37 SYR4 2012–2019
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
 6/11 SYR4 2012–2019
Nitrate-Nitrite
2015 µg/L 20%
of the EPA limit 10000 µg/L
worst single sample: 2160 µg/L
3/11 SYR4 2012–2019
1,1,1-Trichloroethane
0.4000 µg/L 0.2%
of the EPA limit 200 µg/L
 1/14 SYR4 2012–2019
Copper
20 µg/L 1.5%
of the EPA limit 1300 µg/L
 1/11 SYR4 2012–2019
Fluoride
100 µg/L 2.5%
of the EPA limit 4000 µg/L
 1/11 SYR4 2012–2019
Monochloroacetic Acid
2.6 µg/L
No EPA limit set
 1/37 SYR4 2012–2019
89 contaminants tested, none detected
1,1,2-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, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Jose Escalera-Estrada

Frequently asked questions about Quimper

Is Quimper tap water safe to drink?

EPA monitoring detected 18 contaminants in Quimper'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 Quimper's water?

EPA monitoring detected Nitrate, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Quimper serve?

Quimper reports serving 14,548 people in Washington, per its EPA record.

Has Quimper had any water quality violations?

The EPA has 672 violations on file for Quimper, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.