Is Aldergrove Water Assoc. Tap Water Safe? Quality Report

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

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	Resolved	2012-10-01 → 2012-10-31
MCL	Health-based	Archived	1998-11-01 → 1998-11-30
MCL	Health-based	Archived	1998-11-01 → 1998-11-30
MCL	Health-based	Archived	1998-11-01 → 1998-11-30
Other	Monitoring	Resolved	2012-07-01
Other	Monitoring	Resolved	1999-10-19 → 1999-12-31
MR	Monitoring	Archived	1999-01-01 → 2001-01-01
MR	Monitoring	Archived	1992-06-01 → 1992-06-30
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	10/10	LCR	2023
Nitrate	160 µg/L 1.6% of the EPA limit 10000 µg/L	4/12	SYR4	2012–2018
Arsenic	6.4 µg/L 64% of the EPA limit 10 µg/L	1/1	SYR4	2016
Fluoride	360 µg/L 9% of the EPA limit 4000 µg/L	1/1	SYR4	2016

63 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, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitrate-NitriteNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: Dave Olson

Frequently asked questions about Aldergrove Water Assoc.

Is Aldergrove Water Assoc. tap water safe to drink?

EPA monitoring detected 4 contaminants in Aldergrove Water Assoc.'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 Aldergrove Water Assoc.'s water?

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

How many people does Aldergrove Water Assoc. serve?

Aldergrove Water Assoc. reports serving 120 people in Washington, per its EPA record.

Has Aldergrove Water Assoc. had any water quality violations?

The EPA has 17 violations on file for Aldergrove Water Assoc., 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.