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Tap water quality report

Harrisonville, MO

EPA monitoring detected 22 contaminants across the 3 water suppliers serving Harrisonville. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
17,922
people served
22
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Harrisonville's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Chlorite
900 µg/L 90%
of the EPA limit 1000 µg/L
 1/3 SYR4
Nitrate-Nitrite
800 µg/L 8%
of the EPA limit 10000 µg/L
 1/3 SYR4
Fluoride
650 µg/L 16%
of the EPA limit 4000 µg/L
 1/3 SYR4
Copper
308 µg/L 24%
of the EPA limit 1300 µg/L
 3/3 SYR4
Barium
85.3 µg/L 4.3%
of the EPA limit 2000 µg/L
 1/3 SYR4
TTHM
83.8 µg/L 105%
of the EPA limit, in the worst sample — 80 µg/L
 3/3 SYR4
Chloroform
61.2 µg/L
No EPA limit set
 3/3 SYR4
Total Haloacetic Acids (HAA5)
58.3 µg/L 97%
of the EPA limit 60 µg/L
 3/3 SYR4
Lead
41.7 µg/L 278%
of the EPA limit, in the worst sample — 15 µg/L
 3/3 SYR4
Lithium
41 µg/L
No EPA limit set
 1/3 UCMR-5
Dichloroacetic Acid
28.4 µg/L
No EPA limit set
 3/3 SYR4
Picloram
19.6 µg/L 3.9%
of the EPA limit 500 µg/L
 1/3 SYR4
Monochloroacetic Acid
17.1 µg/L
No EPA limit set
 1/3 SYR4
Bromodichloromethane
16 µg/L
No EPA limit set
 3/3 SYR4
Trichloroacetic Acid
10.8 µg/L
No EPA limit set
 2/3 SYR4
Monobromoacetic Acid
7.36 µg/L
No EPA limit set
 3/3 SYR4
Dibromochloromethane
6.11 µg/L
No EPA limit set
 3/3 SYR4
Chromium
3.05 µg/L 3.1%
of the EPA limit 100 µg/L
 1/3 SYR4
Dibromoacetic Acid
2.62 µg/L
No EPA limit set
 3/3 SYR4
Atrazine
2.41 µg/L 80%
of the EPA limit 3 µg/L
 1/3 SYR4
Bromoform
0.8700 µg/L
No EPA limit set
 2/3 SYR4
Lead
0.0044 mg/L 30%
of the EPA limit 0.0150 mg/L
 3/3 LCR
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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Harrisonville

SupplierPopulation served
HARRISONVILLE PWS 10,019
CASS COUNTY PWSD 9 6,063
CASS COUNTY PWSD 4 1,840

Frequently asked questions about Harrisonville tap water

Is Harrisonville tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Harrisonville. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Harrisonville?

3 public water suppliers report drinking-water monitoring for Harrisonville, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in Harrisonville's water?

The contaminants EPA monitoring detected in Harrisonville include Chlorite, Nitrate-Nitrite, Fluoride, Copper, Barium. The full list, with the highest level found and the data source, is in the table above.

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.