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Tap water quality report

Suquamish

EPA monitoring tested this supplier for 104 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
12
detected
4,203
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Kitsap

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
9
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2024-07-01
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 1993-01-01 → 1994-01-01
MR Monitoring Archived 1992-11-01 → 1992-11-30
MR Monitoring Archived 1979-10-01 → 1979-10-31

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
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Chloroform
12.7 µg/L
No EPA limit set
 12/19 SYR4 2012–2019
TTHM
31.6 µg/L 40%
of the EPA limit 80 µg/L
 12/12 SYR4 2012–2019
Dichloroacetic Acid
5.6 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.8 µg/L 18%
of the EPA limit 60 µg/L
 10/11 SYR4 2012–2019
Bromodichloromethane
2.6 µg/L
No EPA limit set
 8/18 SYR4 2012–2019
Trichloroacetic Acid
5.2 µg/L
No EPA limit set
 7/11 SYR4 2012–2019
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 3/4 SYR4 2012
Dibromochloromethane
0.5000 µg/L
No EPA limit set
 2/19 SYR4 2012–2019
Lead
8 µg/L 53%
of the EPA limit 15 µg/L
 2/4 SYR4 2012
Bromoform
15.8 µg/L
No EPA limit set
 1/19 SYR4 2012–2019
Copper
156 µg/L 12%
of the EPA limit 1300 µg/L
 1/4 SYR4 2012
92 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, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Nicholas Bayard

Frequently asked questions about Suquamish

Is Suquamish tap water safe to drink?

EPA monitoring detected 12 contaminants in Suquamish'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 Suquamish's water?

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

How many people does Suquamish serve?

Suquamish reports serving 4,203 people in Washington, per its EPA record.

Has Suquamish had any water quality violations?

The EPA has 9 violations on file for Suquamish, of which 0 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.