Is Wayland Water Department Tap Water Safe? Quality Report

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

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	2012-08-01 → 2012-08-31
MCL	Health-based	Resolved	2012-08-01 → 2012-08-31
MCL	Health-based	Resolved	2011-08-01 → 2011-08-31
MCL	Health-based	Resolved	2011-08-01 → 2011-08-31
MCL	Health-based	Archived	2005-10-01 → 2005-10-31
MCL	Health-based	Archived	2005-09-01 → 2005-09-30
MCL	Health-based	Archived	2001-06-01 → 2001-06-30
TT	Health-based	Resolved	1997-01-01
TT	Health-based	Resolved	1997-01-01
MCL	Health-based	Archived	1996-11-01 → 1996-11-30

PFAS detected

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

Contaminant	Max	Detection rate	Period
Pfpea	0.0100 µg/L	3/8	2023
Pfhpa	0.0040 µg/L	2/8	2023
Pfhxa	0.0040 µg/L	2/8	2023
PFOA	0.0090 µg/L	2/8	2023
PFOS	0.0040 µg/L	2/8	2023
Pfba	0.0050 µg/L	1/8	2023

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
Total Haloacetic Acids (HAA5)	18.02 µg/L 30% of the EPA limit 60 µg/L worst single sample: 82.3 µg/L	128/138	SYR4	2012–2019
TTHM	45.86 µg/L 57% of the EPA limit 80 µg/L worst single sample: 82.2 µg/L	125/125	SYR4	2012–2019
Bromodichloromethane	12.975 µg/L No EPA limit set worst single sample: 25.7 µg/L	96/96	SYR4	2014–2019
Chloroform	19.125 µg/L No EPA limit set worst single sample: 58.9 µg/L	96/96	SYR4	2014–2019
Dibromochloromethane	10.85 µg/L No EPA limit set worst single sample: 15.3 µg/L	96/96	SYR4	2014–2019
Bromoform	4.162 µg/L No EPA limit set worst single sample: 7.76 µg/L	95/96	SYR4	2014–2019
Nitrate	3700 µg/L 37% of the EPA limit 10000 µg/L worst single sample: 3900 µg/L	86/86	SYR4	2012–2019
Dibromoacetic Acid	2.6295 µg/L No EPA limit set worst single sample: 3.52 µg/L	84/96	SYR4	2014–2019
Dichloroacetic Acid	17.61 µg/L No EPA limit set worst single sample: 66.5 µg/L	62/96	SYR4	2014–2019
Monochloroacetic Acid	2.584 µg/L No EPA limit set worst single sample: 10.1 µg/L	43/96	SYR4	2014–2019
Trichloroacetic Acid	4.991 µg/L No EPA limit set worst single sample: 9.07 µg/L	28/96	SYR4	2014–2019
Lead	0.0042 mg/L 28% of the EPA limit 0.0150 mg/L	24/24	LCR	2025
Copper	46 µg/L 3.5% of the EPA limit 1300 µg/L worst single sample: 77 µg/L	21/31	SYR4	2014–2019
Barium	34.75 µg/L 1.7% of the EPA limit 2000 µg/L worst single sample: 37 µg/L	16/16	SYR4	2012–2019
Fluoride	902 µg/L 23% of the EPA limit 4000 µg/L worst single sample: 950 µg/L	13/16	SYR4	2012–2019
Bromate	3.19 µg/L 32% of the EPA limit 10 µg/L worst single sample: 3.3 µg/L	2/74	SYR4	2012–2019
Monobromoacetic Acid	2.6165 µg/L No EPA limit set worst single sample: 2.68 µg/L	2/96	SYR4	2014–2019
Arsenic	2 µg/L 20% of the EPA limit 10 µg/L	1/16	SYR4	2012–2019
Mercury	0.2000 µg/L 10% of the EPA limit 2 µg/L	1/16	SYR4	2012–2019
Simazine	0.1200 µg/L 3% of the EPA limit 4 µg/L	1/30	SYR4	2012–2018

77 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: DON MILLETTE
Phone: 5083583699
Email: [email protected]

Frequently asked questions about Wayland Water Department

Is Wayland Water Department tap water safe to drink?

EPA monitoring detected 26 contaminants in Wayland Water Department'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 Wayland Water Department's water?

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

How many people does Wayland Water Department serve?

Wayland Water Department reports serving 14,096 people in Massachusetts, per its EPA record.

Has Wayland Water Department had any water quality violations?

The EPA has 87 violations on file for Wayland Water Department, of which 15 are health-based (a contaminant limit or required treatment was breached) and 1 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.