Is Rustlewood Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Mason

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	1992-06-01 → 1992-06-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-04-01 → 1992-04-30
MCL	Health-based	Archived	1992-03-01 → 1992-03-31
MCL	Health-based	Archived	1992-03-01 → 1992-03-31
MCL	Health-based	Archived	1992-03-01 → 1992-03-31
MON	Monitoring	Resolved	2021-12-01 → 2021-12-31
MON	Monitoring	Resolved	2017-01-01 → 2017-01-31

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	1000 µg/L 10% of the EPA limit 10000 µg/L	18/52	SYR4	2012–2019
Lead	0.0015 mg/L 10% of the EPA limit 0.0150 mg/L	12/12	LCR	2025
Chloroform	5.9 µg/L No EPA limit set worst single sample: 6.3 µg/L	6/9	SYR4	2012–2018
TTHM	7.175 µg/L 9% of the EPA limit 80 µg/L worst single sample: 8 µg/L	6/6	SYR4	2012–2017
Bromodichloromethane	1.56 µg/L No EPA limit set worst single sample: 1.7 µg/L	5/9	SYR4	2012–2018
Dichloroacetic Acid	2.968 µg/L No EPA limit set worst single sample: 3.1 µg/L	3/3	SYR4	2013–2017
Total Haloacetic Acids (HAA5)	7.212 µg/L 12% of the EPA limit 60 µg/L worst single sample: 7.6 µg/L	3/3	SYR4	2013–2017
Trichloroacetic Acid	4.244 µg/L No EPA limit set worst single sample: 4.5 µg/L	3/3	SYR4	2013–2017
Barium	6.8 µg/L 0.3% of the EPA limit 2000 µg/L worst single sample: 7 µg/L	2/3	SYR4	2017–2019
Chromium	3.85 µg/L 3.9% of the EPA limit 100 µg/L worst single sample: 4 µg/L	2/3	SYR4	2017–2019
Nitrate-Nitrite	918 µg/L 9.2% of the EPA limit 10000 µg/L worst single sample: 920 µg/L	2/5	SYR4	2017–2019
Lead	4 µg/L 27% of the EPA limit 15 µg/L	1/3	SYR4	2017–2019
Nitrite	10 µg/L 1% of the EPA limit 1000 µg/L	1/4	SYR4	2017–2019

60 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: Richard Dickinson

Frequently asked questions about Rustlewood

Is Rustlewood tap water safe to drink?

EPA monitoring detected 13 contaminants in Rustlewood'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 Rustlewood's water?

EPA monitoring detected Nitrate, Lead, Chloroform, TTHM, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Rustlewood serve?

Rustlewood reports serving 322 people in Washington, per its EPA record.

Has Rustlewood had any water quality violations?

The EPA has 32 violations on file for Rustlewood, of which 8 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.