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Tap water quality report

Limestone County Water & Sewer Auth.

EPA monitoring tested this supplier for 104 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
17
detected
90,900
people served
13
health-based violations
Alabama rankingsLead in AlabamaPFAS in Alabama
Water source
Surface water
Ownership
Local government
Counties served
Limestone

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.

13
health-based violations
137
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-01-01 → 2015-03-31
MCL Health-based Resolved 2015-01-01 → 2015-03-31
MCL Health-based Resolved 2015-01-01 → 2015-03-31
MCL Health-based Resolved 2015-01-01 → 2015-03-31
MCL Health-based Resolved 2014-10-01 → 2014-12-31
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-04-01 → 2014-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0249 µg/L 3/7 2025
PFBS 0.0124 µg/L 3/7 2025
Pfhxa 0.0075 µg/L 3/7 2025
PFHXS 0.0068 µg/L 3/7 2025
PFOA 0.0087 µg/L 3/7 2025
PFOS 0.0111 µg/L 3/7 2025
Pfpea 0.0072 µg/L 3/7 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
77.07 µg/L 96%
of the EPA limit 80 µg/L
worst single sample: 123 µg/L
503/519 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
73 µg/L 122%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 146 µg/L
498/520 SYR4 2012–2019
Nitrate
5330 µg/L 53%
of the EPA limit 10000 µg/L
worst single sample: 6210 µg/L
84/86 SYR4 2012–2019
Bromodichloromethane
8.8545 µg/L
No EPA limit set
worst single sample: 11.5 µg/L
34/36 SYR4 2012–2019
Chloroform
31.38 µg/L
No EPA limit set
worst single sample: 39.7 µg/L
33/35 SYR4 2012–2019
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2023
Dibromochloromethane
2.17 µg/L
No EPA limit set
worst single sample: 3.49 µg/L
16/36 SYR4 2012–2019
Nitrate-Nitrite
4230 µg/L 42%
of the EPA limit 10000 µg/L
worst single sample: 4390 µg/L
11/11 SYR4 2012–2019
Copper
71.5 µg/L 5.5%
of the EPA limit 1300 µg/L
worst single sample: 72 µg/L
2/11 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
3.33 pCi/L 22%
of the EPA limit 15 pCi/L
worst single sample: 3.5 pCi/L
2/3 SYR4 2016–2019
87 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-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WILLIAMSON, DARYL
Phone
256-233-6448
Email
[email protected]

Frequently asked questions about Limestone County Water & Sewer Auth.

Is Limestone County Water & Sewer Auth. tap water safe to drink?

EPA monitoring detected 17 contaminants in Limestone County Water & Sewer Auth.'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 County Water & Sewer Auth.'s water?

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

How many people does Limestone County Water & Sewer Auth. serve?

Limestone County Water & Sewer Auth. reports serving 90,900 people in Alabama, per its EPA record.

Has Limestone County Water & Sewer Auth. had any water quality violations?

The EPA has 137 violations on file for Limestone County Water & Sewer Auth., of which 13 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.