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Tap water quality report

Grayson County Water District

EPA monitoring tested this supplier for 102 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
14
detected
20,033
people served
35
health-based violations
Kentucky rankingsLead in KentuckyPFAS in Kentucky
Water source
Surface water
Ownership
Local government
Counties served
Grayson

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.

35
health-based violations
182
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2018-01-01 → 2018-03-31
MCL Health-based Resolved 2018-01-01 → 2018-03-31
MCL Health-based Resolved 2018-01-01 → 2018-03-31
MCL Health-based Resolved 2018-01-01 → 2018-03-31
MCL Health-based Resolved 2018-01-01 → 2018-03-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31

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
TTHM
87.2 µg/L 109%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 129 µg/L
128/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
66.365 µg/L 111%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 100 µg/L
128/129 SYR4 2012–2019
Copper
163 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 350 µg/L
99/101 SYR4 2012–2019
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Lead
2.885 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 3.2 µg/L
10/93 SYR4 2012–2018
Nitrate
423 µg/L 4.2%
of the EPA limit 10000 µg/L
 10/16 SYR4 2012–2019
Atrazine
2.461 µg/L 82%
of the EPA limit 3 µg/L
worst single sample: 3.1 µg/L
7/28 SYR4 2012–2019
Barium
31.8 µg/L 1.6%
of the EPA limit 2000 µg/L
worst single sample: 33 µg/L
7/8 SYR4 2012–2019
Nitrate-Nitrite
475.2 µg/L 4.8%
of the EPA limit 10000 µg/L
worst single sample: 499 µg/L
5/8 SYR4 2012–2019
2,4-D
1 µg/L 1.4%
of the EPA limit 70 µg/L
 1/19 SYR4 2012–2019
Antimony, Total
1.7 µg/L 28%
of the EPA limit 6 µg/L
 1/8 SYR4 2012–2019
Combined Radium (-226 And -228)
1.011 pCi/L 20%
of the EPA limit 5 pCi/L
 1/1 SYR4 2017
Gross Alpha, Excl. Radon And U
1.3 pCi/L 8.7%
of the EPA limit 15 pCi/L
 1/1 SYR4 2017
88 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-PF3ONSAdonaArsenicBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WOOSLEY, JEREMY
Phone
270-259-2917
Email
[email protected]

Frequently asked questions about Grayson County Water District

Is Grayson County Water District tap water safe to drink?

EPA monitoring detected 14 contaminants in Grayson County Water 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 Grayson County Water District's water?

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

How many people does Grayson County Water District serve?

Grayson County Water District reports serving 20,033 people in Kentucky, per its EPA record.

Has Grayson County Water District had any water quality violations?

The EPA has 182 violations on file for Grayson County Water District, of which 35 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.