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Tap water quality report

Jefferson Co Pwsd 8

EPA monitoring tested this supplier for 98 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

98
contaminants tested
13
detected
4,733
people served
0
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Local government
Counties served
Jefferson

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
1
violations on file
1
still open
ViolationTypeStatusPeriod
RPT Monitoring Unaddressed 2025-07-02

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
196 µg/L 15%
of the EPA limit 1300 µg/L
 66/66 SYR4 2012–2018
Lead
23.4 µg/L 156%
of the EPA limit, in the worst sample — 15 µg/L
 45/65 SYR4 2012–2018
Nitrate-Nitrite
210 µg/L 2.1%
of the EPA limit 10000 µg/L
 32/48 SYR4 2012–2019
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
 28/28 LCR 2024
Barium
160 µg/L 8%
of the EPA limit 2000 µg/L
 6/6 SYR4 2014–2017
Chromium
6.17 µg/L 6.2%
of the EPA limit 100 µg/L
 6/6 SYR4 2014–2017
Fluoride
2060 µg/L 52%
of the EPA limit 4000 µg/L
 6/6 SYR4 2014–2017
Chloroform
1.74 µg/L
No EPA limit set
 4/13 SYR4 2013–2019
Bromodichloromethane
1.7 µg/L
No EPA limit set
 3/13 SYR4 2013–2019
Dibromochloromethane
0.9000 µg/L
No EPA limit set
 3/13 SYR4 2013–2019
TTHM
4.34 µg/L 5.4%
of the EPA limit 80 µg/L
 3/7 SYR4 2013–2019
Dichloroacetic Acid
2.47 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Xylenes, Total
0.6100 µg/L 0%
of the EPA limit 10000 µg/L
 1/6 SYR4 2014–2017
85 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-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BONACKER, ANNETTE
Phone
636-274-3125
Email
A.BONACKER@SBCGLOBAL.NET

Frequently asked questions about Jefferson Co Pwsd 8

Is Jefferson Co Pwsd 8 tap water safe to drink?

EPA monitoring detected 13 contaminants in Jefferson Co Pwsd 8'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 Co Pwsd 8's water?

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

How many people does Jefferson Co Pwsd 8 serve?

Jefferson Co Pwsd 8 reports serving 4,733 people in Missouri, per its EPA record.

Has Jefferson Co Pwsd 8 had any water quality violations?

The EPA has 1 violation on file for Jefferson Co Pwsd 8, 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.