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Tap water quality report

Lewiston Water & Sewer Division

EPA monitoring tested this supplier for 82 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
14
detected
23,720
people served
17
health-based violations
Maine rankingsLead in MainePFAS in Maine
Water source
Surface water
Ownership
Local government
Counties served
Androscoggin

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.

17
health-based violations
17
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2007-08-01 → 2007-08-31
TT Health-based Resolved 2007-08-01 → 2007-08-31
TT Health-based Resolved 2007-08-01 → 2007-08-31
TT Health-based Resolved 2007-08-01 → 2007-08-31
TT Health-based Resolved 2007-08-01 → 2007-08-31
TT Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30
MCL Health-based Resolved 2007-06-01 → 2007-06-30

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
Copper
253 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 816 µg/L
221/222 SYR4 2012–2019
TTHM
56.9 µg/L 71%
of the EPA limit 80 µg/L
worst single sample: 64.8 µg/L
130/130 SYR4 2012–2019
Lead
28.98 µg/L 193%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 344 µg/L
129/222 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
44 µg/L 73%
of the EPA limit 60 µg/L
worst single sample: 55 µg/L
127/129 SYR4 2012–2019
Fluoride
800 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 830 µg/L
103/103 SYR4 2012–2019
Bromodichloromethane
4.8 µg/L
No EPA limit set
worst single sample: 5 µg/L
50/50 SYR4 2012–2014
Chloroform
58.1 µg/L
No EPA limit set
worst single sample: 60 µg/L
50/50 SYR4 2012–2014
Trichloroacetic Acid
25.7 µg/L
No EPA limit set
worst single sample: 29 µg/L
47/49 SYR4 2012–2014
Dichloroacetic Acid
25.75 µg/L
No EPA limit set
worst single sample: 28 µg/L
46/49 SYR4 2012–2014
Lead
0.0023 mg/L 15%
of the EPA limit 0.0150 mg/L
 25/25 LCR 2023
Barium
1.465 µg/L 0.1%
of the EPA limit 2000 µg/L
worst single sample: 1.5 µg/L
8/8 SYR4 2012–2019
Nitrate
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 4/16 SYR4 2012–2019
Arsenic
0.6710 µg/L 6.7%
of the EPA limit 10 µg/L
worst single sample: 0.6800 µg/L
3/8 SYR4 2012–2019
Nitrate-Nitrite
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 2/8 SYR4 2012–2019
68 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined UraniumDichloromethaneDibromoacetic AcidDibromochloromethaneEthylbenzeneGross Alpha, Excl. Radon And UHfpo-DaMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GAGNE, KEVIN A
Phone
207-513-3003
Email
[email protected]

Frequently asked questions about Lewiston Water & Sewer Division

Is Lewiston Water & Sewer Division tap water safe to drink?

EPA monitoring detected 14 contaminants in Lewiston Water & Sewer Division'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 Lewiston Water & Sewer Division's water?

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

How many people does Lewiston Water & Sewer Division serve?

Lewiston Water & Sewer Division reports serving 23,720 people in Maine, per its EPA record.

Has Lewiston Water & Sewer Division had any water quality violations?

The EPA has 17 violations on file for Lewiston Water & Sewer Division, of which 17 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.