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Tap water quality report

Andover Water Dept

EPA monitoring tested this supplier for 94 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

94
contaminants tested
10
detected
36,569
people served
2
health-based violations
Massachusetts rankingsLead in MassachusettsPFAS in Massachusetts
Water source
Surface water
Ownership
Local government
Counties served
Essex

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.

2
health-based violations
4
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Archived 2022-01-01 → 2022-12-31
TT Health-based Addressed 2021-11-01
MR Monitoring Resolved 2009-01-01 → 2009-03-31
MR Monitoring Resolved 2009-01-01 → 2009-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0040 µg/L 1/4 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
51.62 µg/L 65%
of the EPA limit 80 µg/L
worst single sample: 60.8 µg/L
117/118 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
9.1715 µg/L 15%
of the EPA limit 60 µg/L
worst single sample: 12.2 µg/L
104/126 SYR4 2012–2019
Bromate
2.38 µg/L 24%
of the EPA limit 10 µg/L
worst single sample: 2.7 µg/L
43/67 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2025
Fluoride
865 µg/L 22%
of the EPA limit 4000 µg/L
worst single sample: 900 µg/L
8/8 SYR4 2012–2019
Nitrate
290 µg/L 2.9%
of the EPA limit 10000 µg/L
 6/14 SYR4 2012–2019
Barium
16.7 µg/L 0.8%
of the EPA limit 2000 µg/L
worst single sample: 17 µg/L
3/7 SYR4 2012–2019
Copper
1.885 µg/L 0.1%
of the EPA limit 1300 µg/L
worst single sample: 1.9 µg/L
2/2 SYR4 2016–2017
1,2-Dichloroethane
0.7000 µg/L 14%
of the EPA limit 5 µg/L
 1/30 SYR4 2012–2019
84 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRIAN PENA
Phone
9786238870
Email
[email protected]

Frequently asked questions about Andover Water Dept

Is Andover Water Dept tap water safe to drink?

EPA monitoring detected 10 contaminants in Andover Water Dept'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 Andover Water Dept's water?

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

How many people does Andover Water Dept serve?

Andover Water Dept reports serving 36,569 people in Massachusetts, per its EPA record.

Has Andover Water Dept had any water quality violations?

The EPA has 4 violations on file for Andover Water Dept, of which 2 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.