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Tap water quality report

Dexter

EPA monitoring tested this supplier for 99 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

99
contaminants tested
17
detected
8,200
people served
3
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Local government
Counties served
Stoddard

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.

3
health-based violations
8
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1997-09-01 → 1997-09-30
MCL Health-based Archived 1997-09-01 → 1997-09-30
MCL Health-based Archived 1997-09-01 → 1997-09-30
RPT Monitoring Unaddressed 2025-07-02
MR Monitoring Archived 1991-11-01 → 1991-11-30
MR Monitoring Archived 1991-11-01 → 1991-11-30
MR Monitoring Archived 1991-10-01 → 1991-10-31
MR Monitoring Archived 1991-10-01 → 1991-10-31

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
Copper
252 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 927 µg/L
66/66 SYR4 2012–2018
Lead
11 µg/L 73%
of the EPA limit 15 µg/L
worst single sample: 24.8 µg/L
47/65 SYR4 2012–2018
Nitrate-Nitrite
31.1 µg/L 0.3%
of the EPA limit 10000 µg/L
worst single sample: 32 µg/L
30/32 SYR4 2012–2019
Lead
0.0020 mg/L 14%
of the EPA limit 0.0150 mg/L
 25/25 LCR 2024
Bromoform
30.64 µg/L
No EPA limit set
worst single sample: 35.2 µg/L
13/13 SYR4 2012–2019
Dibromochloromethane
18.82 µg/L
No EPA limit set
worst single sample: 19.3 µg/L
13/13 SYR4 2012–2019
Bromodichloromethane
5.78 µg/L
No EPA limit set
worst single sample: 6.58 µg/L
9/13 SYR4 2012–2019
Dibromoacetic Acid
8.826 µg/L
No EPA limit set
worst single sample: 9.3 µg/L
7/7 SYR4 2013–2019
TTHM
57.42 µg/L 72%
of the EPA limit 80 µg/L
worst single sample: 60 µg/L
7/7 SYR4 2013–2019
Barium
89.775 µg/L 4.5%
of the EPA limit 2000 µg/L
worst single sample: 91.5 µg/L
6/6 SYR4 2012–2018
Chloroform
1.6325 µg/L
No EPA limit set
worst single sample: 1.87 µg/L
6/13 SYR4 2012–2019
Fluoride
905 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 950 µg/L
6/6 SYR4 2012–2018
Combined Radium (-226 And -228)
2.76 pCi/L 55%
of the EPA limit 5 pCi/L
worst single sample: 3 pCi/L
4/4 SYR4 2012–2018
Lithium
88.7 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Chromium
2.566 µg/L 2.6%
of the EPA limit 100 µg/L
worst single sample: 2.62 µg/L
3/6 SYR4 2012–2018
Dichloroacetic Acid
2.329 µg/L
No EPA limit set
worst single sample: 2.38 µg/L
2/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
11.7 µg/L 19%
of the EPA limit 60 µg/L
 1/7 SYR4 2013–2019
82 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WYMAN, DAVE
Phone
573-624-5959

Frequently asked questions about Dexter

Is Dexter tap water safe to drink?

EPA monitoring detected 17 contaminants in Dexter'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 Dexter's water?

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

How many people does Dexter serve?

Dexter reports serving 8,200 people in Missouri, per its EPA record.

Has Dexter had any water quality violations?

The EPA has 8 violations on file for Dexter, of which 3 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.