Is Lakehaven Water and Sewer District Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: King

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	1998-06-01 → 1998-06-30
MCL	Health-based	Archived	1998-06-01 → 1998-06-30
MCL	Health-based	Archived	1998-06-01 → 1998-06-30
TT	Health-based	Archived	1995-01-01 → 2002-07-25
TT	Health-based	Archived	1995-01-01 → 2002-07-25
Other	Monitoring	Resolved	2022-07-01
MR	Monitoring	Resolved	2010-10-01 → 2010-12-31
MR	Monitoring	Resolved	2007-10-01 → 2007-12-31
MR	Monitoring	Resolved	2007-10-01 → 2007-12-31
MR	Monitoring	Resolved	2007-10-01 → 2007-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfhpa	0.0036 µg/L	2/34	2025
Pfhxa	0.0076 µg/L	2/34	2025
PFHXS	0.0058 µg/L	2/34	2025
PFOS	0.0041 µg/L	2/34	2025
Pfpea	0.0137 µg/L	2/34	2025
PFBS	0.0040 µg/L	1/34	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 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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
TTHM	42.66 µg/L 53% of the EPA limit 80 µg/L worst single sample: 57.7 µg/L	177/177	SYR4	2012–2019
Chloroform	38.01 µg/L No EPA limit set worst single sample: 50 µg/L	174/205	SYR4	2012–2019
Bromodichloromethane	5.72 µg/L No EPA limit set worst single sample: 11 µg/L	159/183	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	34.72 µg/L 58% of the EPA limit 60 µg/L worst single sample: 57 µg/L	155/175	SYR4	2012–2019
Dichloroacetic Acid	13.5 µg/L No EPA limit set worst single sample: 20.7 µg/L	146/171	SYR4	2012–2019
Trichloroacetic Acid	26 µg/L No EPA limit set worst single sample: 36.3 µg/L	141/170	SYR4	2012–2019
Nitrate	2515.5 µg/L 25% of the EPA limit 10000 µg/L worst single sample: 3100 µg/L	114/290	SYR4	2012–2019
Dibromochloromethane	3.93 µg/L No EPA limit set worst single sample: 8.3 µg/L	95/189	SYR4	2012–2019
Nitrate-Nitrite	2600 µg/L 26% of the EPA limit 10000 µg/L worst single sample: 3100 µg/L	41/113	SYR4	2012–2019
Bromoform	1.87 µg/L No EPA limit set worst single sample: 2.3 µg/L	27/198	SYR4	2012–2019
Arsenic	7 µg/L 70% of the EPA limit 10 µg/L	23/29	SYR4	2012–2019
Lead	0.0033 mg/L 22% of the EPA limit 0.0150 mg/L	18/18	LCR	2025
Lead	3.04 µg/L 20% of the EPA limit 15 µg/L worst single sample: 3.1 µg/L	5/23	SYR4	2012–2019
Dibromoacetic Acid	2.29 µg/L No EPA limit set worst single sample: 2.3 µg/L	3/177	SYR4	2012–2019
Beryllium, Total	1.4 µg/L 35% of the EPA limit 4 µg/L	1/23	SYR4	2012–2019
Copper	22 µg/L 1.7% of the EPA limit 1300 µg/L	1/23	SYR4	2012–2019
Cadmium	1.4 µg/L 28% of the EPA limit 5 µg/L	1/23	SYR4	2012–2019
Fluoride	510 µg/L 13% of the EPA limit 4000 µg/L	1/23	SYR4	2012–2019
Monochloroacetic Acid	2.1 µg/L No EPA limit set	1/177	SYR4	2012–2019
Selenium	2.3 µg/L 4.6% of the EPA limit 50 µg/L	1/23	SYR4	2012–2019

78 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)PyreneChlorobenzeneCyanideCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: Brian Williams

Frequently asked questions about Lakehaven Water and Sewer District

Is Lakehaven Water and Sewer District tap water safe to drink?

EPA monitoring detected 26 contaminants in Lakehaven Water and Sewer District'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 Lakehaven Water and Sewer District's water?

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

How many people does Lakehaven Water and Sewer District serve?

Lakehaven Water and Sewer District reports serving 148,809 people in Washington, per its EPA record.

Has Lakehaven Water and Sewer District had any water quality violations?

The EPA has 77 violations on file for Lakehaven Water and Sewer District, of which 5 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.