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Tap water quality report

Limestone Water & Sewer District

EPA monitoring tested this supplier for 69 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
15
detected
875
people served
63
health-based violations
Maine rankingsLead in MainePFAS in Maine
Water source
Ground water
Ownership
Local government
Counties served
Aroostook

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.

63
health-based violations
76
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1999-06-01 → 1999-06-30
TT Health-based Resolved 1999-06-01 → 1999-06-30
TT Health-based Resolved 1999-05-01 → 1999-05-31
TT Health-based Resolved 1999-05-01 → 1999-05-31
TT Health-based Resolved 1999-03-01 → 1999-03-31
TT Health-based Resolved 1999-03-01 → 1999-03-31
TT Health-based Resolved 1999-02-01 → 1999-02-28
TT Health-based Resolved 1999-02-01 → 1999-02-28
TT Health-based Resolved 1999-01-01 → 1999-01-31
TT Health-based Resolved 1999-01-01 → 1999-01-31

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
Fluoride
810 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 1200 µg/L
99/99 SYR4 2012–2019
Nitrate
7885 µg/L 79%
of the EPA limit 10000 µg/L
worst single sample: 8500 µg/L
64/64 SYR4 2012–2019
Copper
424.5 µg/L 33%
of the EPA limit 1300 µg/L
worst single sample: 790 µg/L
32/32 SYR4 2013–2019
Lead
0.0026 mg/L 17%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2023
Lead
9.075 µg/L 61%
of the EPA limit 15 µg/L
worst single sample: 12 µg/L
16/32 SYR4 2013–2019
Bromodichloromethane
2.785 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
4/13 SYR4 2012–2019
Bromoform
2.07 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
4/13 SYR4 2012–2019
Chloroform
1.5 µg/L
No EPA limit set
 4/13 SYR4 2012–2019
Dibromoacetic Acid
2.25 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
4/5 SYR4 2013–2019
Dibromochloromethane
3.71 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
4/13 SYR4 2012–2019
TTHM
9.95 µg/L 12%
of the EPA limit 80 µg/L
worst single sample: 10.1 µg/L
4/5 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
2.57 µg/L 4.3%
of the EPA limit 60 µg/L
worst single sample: 2.6 µg/L
4/5 SYR4 2013–2019
Barium
27.9 µg/L 1.4%
of the EPA limit 2000 µg/L
worst single sample: 28 µg/L
2/2 SYR4 2014–2017
Chromium
1.79 µg/L 1.8%
of the EPA limit 100 µg/L
worst single sample: 1.8 µg/L
2/2 SYR4 2014–2017
Dichloroacetic Acid
1.19 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/5 SYR4 2013–2019
54 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LEIGHTON, JIM N
Phone
207-325-4788
Email
[email protected]

Frequently asked questions about Limestone Water & Sewer District

Is Limestone Water & Sewer District tap water safe to drink?

EPA monitoring detected 15 contaminants in Limestone Water & Sewer 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 Limestone Water & Sewer District's water?

EPA monitoring detected Fluoride, Nitrate, Copper, Lead, Lead, and others. The full list with the level and data source for each is above.

How many people does Limestone Water & Sewer District serve?

Limestone Water & Sewer District reports serving 875 people in Maine, per its EPA record.

Has Limestone Water & Sewer District had any water quality violations?

The EPA has 76 violations on file for Limestone Water & Sewer District, of which 63 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.