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Tap water quality report

Jefferson Regional Water Authority

EPA monitoring tested this supplier for 83 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

83
contaminants tested
20
detected
4,813
people served
0
health-based violations
Ohio rankingsLead in OhioPFAS in Ohio
Water source
Ground water
Ownership
Local government
Counties served
Montgomery

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.

0
health-based violations
190
violations on file
1
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
Other Monitoring Unaddressed 2019-01-23
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0062 µg/L 2/2 2023
Pfhxa 0.0038 µg/L 2/2 2023
Pfpea 0.0069 µg/L 2/2 2023

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
242.8 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 387 µg/L
78/80 SYR4 2014–2019
Lead
5.1275 µg/L 34%
of the EPA limit 15 µg/L
worst single sample: 6.3 µg/L
38/80 SYR4 2014–2019
Nitrate
1127.15 µg/L 11%
of the EPA limit 10000 µg/L
worst single sample: 1430 µg/L
30/30 SYR4 2012–2019
Bromodichloromethane
9.472 µg/L
No EPA limit set
worst single sample: 10.04 µg/L
23/26 SYR4 2012–2019
Dibromochloromethane
8.435 µg/L
No EPA limit set
worst single sample: 10.16 µg/L
23/26 SYR4 2012–2019
Bromoform
2.804 µg/L
No EPA limit set
worst single sample: 3.02 µg/L
19/26 SYR4 2012–2019
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2025
Chloroform
6.1135 µg/L
No EPA limit set
worst single sample: 6.87 µg/L
18/26 SYR4 2012–2019
TTHM
27.57 µg/L 34%
of the EPA limit 80 µg/L
worst single sample: 30.09 µg/L
16/16 SYR4 2012–2019
Dibromoacetic Acid
2.9943 µg/L
No EPA limit set
worst single sample: 3.009 µg/L
15/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
6.8124 µg/L 11%
of the EPA limit 60 µg/L
worst single sample: 7.084 µg/L
15/16 SYR4 2012–2019
Dichloroacetic Acid
2.81835 µg/L
No EPA limit set
worst single sample: 2.844 µg/L
10/16 SYR4 2012–2019
Barium
110.77 µg/L 5.5%
of the EPA limit 2000 µg/L
worst single sample: 114 µg/L
3/3 SYR4 2012–2018
Fluoride
658.7 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 668 µg/L
3/3 SYR4 2012–2018
Nitrate-Nitrite
705.9 µg/L 7.1%
of the EPA limit 10000 µg/L
worst single sample: 711 µg/L
3/3 SYR4 2012–2017
Trichloroacetic Acid
1.4619 µg/L
No EPA limit set
worst single sample: 1.492 µg/L
3/16 SYR4 2012–2019
Xylenes, Total
1.91 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 1.92 µg/L
2/10 SYR4 2012–2019
63 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, TotalArsenicAtrazineBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneHfpo-DaLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RINEHART, TARA
Phone
937-866-0002
Email
[email protected]

Frequently asked questions about Jefferson Regional Water Authority

Is Jefferson Regional Water Authority tap water safe to drink?

EPA monitoring detected 20 contaminants in Jefferson Regional Water Authority'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 Jefferson Regional Water Authority's water?

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

How many people does Jefferson Regional Water Authority serve?

Jefferson Regional Water Authority reports serving 4,813 people in Ohio, per its EPA record.

Has Jefferson Regional Water Authority had any water quality violations?

The EPA has 190 violations on file for Jefferson Regional Water Authority, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.