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Tap water quality report

ZIP 64746 — Harrisonville, MO

EPA monitoring across the 2 water suppliers serving ZIP 64746 in Harrisonville, MO detected 22 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
10,206
people served
22
contaminants found

What was found in ZIP 64746

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
236.5 µg/L 18%
of the EPA limit 1300 µg/L
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 722.95 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Nitrate-Nitrite
330 µg/L 3.3%
of the EPA limit 10000 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Fluoride
187.5 µg/L 4.7%
of the EPA limit 4000 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Barium
104.3 µg/L 5.2%
of the EPA limit 2000 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
TTHM
10.984 µg/L 14%
of the EPA limit 80 µg/L
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 77.88 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Chloroform
5.898 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 55.6 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
16.6 µg/L 28%
of the EPA limit 60 µg/L
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 45.3 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Lithium
41 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2024
1/2 UCMR-5
Dichloroacetic Acid
8.294 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 28.695 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Bromodichloromethane
3.4225 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 18.485 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Trichloroacetic Acid
1.07 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 15.745 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Monobromoacetic Acid
7.36 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 11.95 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Monochloroacetic Acid
8.44 µg/L
No EPA limit set
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Lead
5.108 µg/L 34%
of the EPA limit 15 µg/L
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 8.172 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Dibromochloromethane
1.838 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
Highest in the ZIP: 5.1725 µg/L — CASS COUNTY PWSD 7 · 4,143 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.62 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
2/2 SYR4
Chromium
2.246 µg/L 2.2%
of the EPA limit 100 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Atrazine
1.555 µg/L 52%
of the EPA limit 3 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Arsenic
1.028 µg/L 10%
of the EPA limit 10 µg/L
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2019
1/2 SYR4
Bromoform
0.8700 µg/L
No EPA limit set
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2019
1/2 SYR4
Pfpea
0.0034 µg/L
No EPA limit set
Highest in the ZIP: CASS COUNTY PWSD 7 · 4,143 people · 2025
1/2 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: CASS COUNTY PWSD 9 · 6,063 people · 2025
Highest in the ZIP: 0.0029 mg/L — CASS COUNTY PWSD 7 · 4,143 people · 2025
2/2 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 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 64746

SupplierStatePopulation served
CASS COUNTY PWSD 9 MO 6,063
CASS COUNTY PWSD 7 MO 4,143

Frequently asked questions about ZIP 64746 tap water

Is the tap water in ZIP 64746 safe to drink?

EPA testing detected 22 contaminants across the water suppliers serving ZIP 64746. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 64746?

2 public water suppliers report EPA drinking-water monitoring for ZIP 64746. Each is listed above with its population served.

What contaminants are in ZIP 64746's water?

EPA monitoring detected Copper, Nitrate-Nitrite, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.