Is Lake Lawrence Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Thurston

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	2006-07-01 → 2006-07-31
MCL	Health-based	Archived	1991-10-01 → 1991-10-31
MCL	Health-based	Archived	1991-10-01 → 1991-10-31
MCL	Health-based	Archived	1991-10-01 → 1991-10-31
Other	Monitoring	Resolved	2020-07-01
MR	Monitoring	Resolved	1997-01-01 → 1997-01-01
MR	Monitoring	Archived	1993-09-01 → 1993-09-30
MR	Monitoring	Archived	1991-10-01 → 1991-10-31
MR	Monitoring	Archived	1979-10-01 → 1979-10-31
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 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
Nitrate	2925 µg/L 29% of the EPA limit 10000 µg/L worst single sample: 3200 µg/L	32/32	SYR4	2012–2019
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L	7/7	LCR	2023
Arsenic	3 µg/L 30% of the EPA limit 10 µg/L	4/4	SYR4	2014–2017
Nitrate-Nitrite	3095 µg/L 31% of the EPA limit 10000 µg/L worst single sample: 3200 µg/L	4/4	SYR4	2014–2017
Barium	3 µg/L 0.2% of the EPA limit 2000 µg/L	2/4	SYR4	2014–2017
Copper	2 µg/L 0.2% of the EPA limit 1300 µg/L	1/4	SYR4	2014–2017
Chromium	1 µg/L 1% of the EPA limit 100 µg/L	1/4	SYR4	2014–2017

41 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChloroformDichloromethaneDalaponDibromochloromethaneDinosebEthylbenzeneFluorideLeadMercuryNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: James Jensen

Frequently asked questions about Lake Lawrence

Is Lake Lawrence tap water safe to drink?

EPA monitoring detected 7 contaminants in Lake Lawrence'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 Lake Lawrence's water?

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

How many people does Lake Lawrence serve?

Lake Lawrence reports serving 914 people in Washington, per its EPA record.

Has Lake Lawrence had any water quality violations?

The EPA has 17 violations on file for Lake Lawrence, of which 4 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.