Is Dekalb County Pwsd 1 Tap Water Safe? Quality Report

Water source: GWP
Ownership: Local government
Counties served: DeKalb

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2012-10-01 → 2012-10-31
MCL	Health-based	Resolved	2012-10-01 → 2012-10-31
MCL	Health-based	Resolved	2012-10-01 → 2012-10-31
MCL	Health-based	Resolved	2012-10-01 → 2012-10-31
RPT	Monitoring	Unaddressed	2025-07-02
MR	Monitoring	Archived	1992-08-01 → 1992-08-31
MR	Monitoring	Archived	1992-08-01 → 1992-08-31
MR	Monitoring	Archived	1991-09-01 → 1991-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	272 µg/L 21% of the EPA limit 1300 µg/L	40/40	SYR4	2014–2017
Lead	0.0012 mg/L 8.3% of the EPA limit 0.0150 mg/L	24/24	LCR	2023
Lead	9.81 µg/L 65% of the EPA limit 15 µg/L	12/40	SYR4	2014–2017
Bromodichloromethane	3.87 µg/L No EPA limit set	9/9	SYR4	2013–2019
Chloroform	10.4 µg/L No EPA limit set	9/9	SYR4	2013–2019
Dichloroacetic Acid	11.7 µg/L No EPA limit set	9/9	SYR4	2013–2019
TTHM	15 µg/L 19% of the EPA limit 80 µg/L	9/9	SYR4	2013–2019
Trichloroacetic Acid	2.34 µg/L No EPA limit set	9/9	SYR4	2013–2019
Dibromochloromethane	1.21 µg/L No EPA limit set	5/9	SYR4	2013–2019
Lithium	46 µg/L No EPA limit set	4/4	UCMR-5	2024
Total Haloacetic Acids (HAA5)	14.8 µg/L 25% of the EPA limit 60 µg/L	3/9	SYR4	2013–2019
Dibromoacetic Acid	1.33 µg/L No EPA limit set	2/9	SYR4	2013–2019

32 contaminants tested, none detected

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Utility contact

Contact: COLLINS, MIKE
Phone: 816-393-5311

Frequently asked questions about Dekalb County Pwsd 1

Is Dekalb County Pwsd 1 tap water safe to drink?

EPA monitoring detected 12 contaminants in Dekalb County Pwsd 1'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 County Pwsd 1's water?

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

How many people does Dekalb County Pwsd 1 serve?

Dekalb County Pwsd 1 reports serving 7,635 people in Missouri, per its EPA record.

Has Dekalb County Pwsd 1 had any water quality violations?

The EPA has 8 violations on file for Dekalb County Pwsd 1, of which 4 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.