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Tap water quality report

Leicester Water Supply District

EPA monitoring tested this supplier for 73 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
17
detected
3,200
people served
61
health-based violations
Massachusetts rankingsLead in MassachusettsPFAS in Massachusetts
Water source
SWP
Ownership
Local government
Counties served
Worcester

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.

61
health-based violations
163
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2010-07-01 → 2010-07-31
MCL Health-based Resolved 2010-07-01 → 2010-07-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-07-01 → 2009-09-30

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
Arsenic
21.6 µg/L 216%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 24 µg/L
65/200 SYR4 2012–2019
Nitrate
2170 µg/L 22%
of the EPA limit 10000 µg/L
worst single sample: 3000 µg/L
46/66 SYR4 2012–2019
TTHM
14.12 µg/L 18%
of the EPA limit 80 µg/L
worst single sample: 20 µg/L
25/28 SYR4 2012–2019
Bromoform
2.99 µg/L
No EPA limit set
worst single sample: 4.4 µg/L
22/25 SYR4 2012–2019
Dibromochloromethane
5.1515 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
22/25 SYR4 2012–2019
Bromodichloromethane
4.1 µg/L
No EPA limit set
worst single sample: 5.4 µg/L
21/25 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
2.8 µg/L 4.7%
of the EPA limit 60 µg/L
worst single sample: 4.1 µg/L
21/28 SYR4 2012–2019
Chloroform
2.6895 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
18/25 SYR4 2012–2019
Dibromoacetic Acid
1.55 µg/L
No EPA limit set
worst single sample: 1.7 µg/L
16/25 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2026
Barium
54.76 µg/L 2.7%
of the EPA limit 2000 µg/L
worst single sample: 64 µg/L
12/17 SYR4 2013–2019
Fluoride
620 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 670 µg/L
11/17 SYR4 2013–2019
Combined Uranium
29.81 µg/L 99%
of the EPA limit 30 µg/L
worst single sample: 30.8 µg/L
7/41 SYR4 2012–2019
Dichloroacetic Acid
1.355 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
6/25 SYR4 2012–2019
Monochloroacetic Acid
1.695 µg/L
No EPA limit set
worst single sample: 1.7 µg/L
2/25 SYR4 2012–2019
Selenium
5.1 µg/L 10%
of the EPA limit 50 µg/L
 1/17 SYR4 2013–2019
Trichloroacetic Acid
0.5000 µg/L
No EPA limit set
 1/25 SYR4 2012–2019
56 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOSEPH H WOOD
Phone
5088928484
Email
[email protected]

Frequently asked questions about Leicester Water Supply District

Is Leicester Water Supply District tap water safe to drink?

EPA monitoring detected 17 contaminants in Leicester Water Supply District'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 Leicester Water Supply District's water?

EPA monitoring detected Arsenic, Nitrate, TTHM, Bromoform, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Leicester Water Supply District serve?

Leicester Water Supply District reports serving 3,200 people in Massachusetts, per its EPA record.

Has Leicester Water Supply District had any water quality violations?

The EPA has 163 violations on file for Leicester Water Supply District, of which 61 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.