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Tap water quality report

Holyoke Water Works

EPA monitoring tested this supplier for 95 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

95
contaminants tested
14
detected
37,838
people served
0
health-based violations
Massachusetts rankingsLead in MassachusettsPFAS in Massachusetts
Water source
Surface water
Ownership
Local government
Counties served
Hampden

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.

0
health-based violations
60
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30

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
Total Haloacetic Acids (HAA5)
56 µg/L 93%
of the EPA limit 60 µg/L
worst single sample: 62 µg/L
124/124 SYR4 2012–2019
TTHM
45.25 µg/L 57%
of the EPA limit 80 µg/L
worst single sample: 52 µg/L
116/116 SYR4 2012–2019
Dichloroacetic Acid
32.85 µg/L
No EPA limit set
worst single sample: 39 µg/L
104/104 SYR4 2012–2018
Trichloroacetic Acid
23 µg/L
No EPA limit set
worst single sample: 26 µg/L
104/104 SYR4 2012–2018
Chloroform
43 µg/L
No EPA limit set
worst single sample: 49 µg/L
96/96 SYR4 2012–2018
Bromodichloromethane
2.9 µg/L
No EPA limit set
worst single sample: 3.3 µg/L
95/96 SYR4 2012–2018
Monochloroacetic Acid
3.3 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
43/104 SYR4 2012–2018
Nitrate
120 µg/L 1.2%
of the EPA limit 10000 µg/L
 18/32 SYR4 2012–2019
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2023
Copper
2.26 µg/L 0.2%
of the EPA limit 1300 µg/L
worst single sample: 2.4 µg/L
8/12 SYR4 2012–2018
Hexachlorocyclopentadiene
0.0959 µg/L 0.2%
of the EPA limit 50 µg/L
worst single sample: 0.0960 µg/L
2/10 SYR4 2012–2019
2,4-D
0.4390 µg/L 0.6%
of the EPA limit 70 µg/L
 1/10 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
5.26 µg/L 88%
of the EPA limit 6 µg/L
 1/11 SYR4 2012–2019
Lithium
10.7 µg/L
No EPA limit set
 1/8 UCMR-5 2024
81 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-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBromoformChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MATTHEW J SMITH
Phone
4135360442
Email
[email protected]

Frequently asked questions about Holyoke Water Works

Is Holyoke Water Works tap water safe to drink?

EPA monitoring detected 14 contaminants in Holyoke Water Works'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 Holyoke Water Works's water?

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

How many people does Holyoke Water Works serve?

Holyoke Water Works reports serving 37,838 people in Massachusetts, per its EPA record.

Has Holyoke Water Works had any water quality violations?

The EPA has 60 violations on file for Holyoke Water Works, of which 0 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.