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Tap water quality report

Dekalb

EPA monitoring tested this supplier for 14 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
9
detected
250
people served
2
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
GWP
Ownership
Local government
Counties served
Buchanan

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.

2
health-based violations
26
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1998-07-01 → 1998-07-31
MCL Health-based Archived 1998-07-01 → 1998-07-31
RPT Monitoring Unaddressed 2025-07-02
Other Monitoring Resolved 2020-07-01
Other Monitoring Resolved 2014-07-01
Other Monitoring Resolved 2014-07-01
Other Monitoring Resolved 2013-07-01
MR Monitoring Resolved 2005-12-01 → 2005-12-31
MR Monitoring Resolved 2005-12-01 → 2005-12-31
MR Monitoring Resolved 2005-12-01 → 2005-12-31

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 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
Lead
0.0066 mg/L 44%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2024
Copper
362 µg/L 28%
of the EPA limit 1300 µg/L
 15/15 SYR4 2012–2018
Lead
17.6 µg/L 117%
of the EPA limit, in the worst sample — 15 µg/L
 6/15 SYR4 2012–2018
Bromodichloromethane
2.07 µg/L
No EPA limit set
 3/3 SYR4 2013–2017
Chloroform
5.55 µg/L
No EPA limit set
 3/3 SYR4 2013–2017
TTHM
8.28 µg/L 10%
of the EPA limit 80 µg/L
 3/3 SYR4 2013–2017
Dichloroacetic Acid
8.51 µg/L
No EPA limit set
 2/3 SYR4 2013–2017
Trichloroacetic Acid
1.43 µg/L
No EPA limit set
 2/3 SYR4 2013–2017
Dibromochloromethane
0.6600 µg/L
No EPA limit set
 1/3 SYR4 2013–2017
5 contaminants tested, none detected
BromoformDibromoacetic AcidMonobromoacetic AcidMonochloroacetic AcidTotal Haloacetic Acids (HAA5)

Utility contact

Contact
THOMAS, GILLIS
Phone
816-294-1974

Frequently asked questions about Dekalb

Is Dekalb tap water safe to drink?

EPA monitoring detected 9 contaminants in Dekalb'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 Dekalb's water?

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

How many people does Dekalb serve?

Dekalb reports serving 250 people in Missouri, per its EPA record.

Has Dekalb had any water quality violations?

The EPA has 26 violations on file for Dekalb, of which 2 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.