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Tap water quality report

ZIP 63090 — Washington, MO

EPA monitoring across the 3 water suppliers serving ZIP 63090 in Washington, MO detected 20 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

3
water suppliers
28,818
people served
20
contaminants found

What was found in ZIP 63090

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
1120 µg/L 86%
of the EPA limit 1300 µg/L
3/3 SYR4
Barium
625 µg/L 31%
of the EPA limit 2000 µg/L
2/3 SYR4
Nitrate-Nitrite
500 µg/L 5%
of the EPA limit 10000 µg/L
2/3 SYR4
Fluoride
150 µg/L 3.8%
of the EPA limit 4000 µg/L
2/3 SYR4
TTHM
82 µg/L 102%
of the EPA limit, in the worst sample — 80 µg/L
2/3 SYR4
Chloroform
68.3 µg/L
No EPA limit set
3/3 SYR4
Total Haloacetic Acids (HAA5)
57.4 µg/L 96%
of the EPA limit 60 µg/L
2/3 SYR4
Dichloroacetic Acid
37.1 µg/L
No EPA limit set
2/3 SYR4
Lead
31.5 µg/L 210%
of the EPA limit, in the worst sample — 15 µg/L
3/3 SYR4
Trichloroacetic Acid
24.3 µg/L
No EPA limit set
2/3 SYR4
Toluene
17.2 µg/L 1.7%
of the EPA limit 1000 µg/L
1/3 SYR4
Bromodichloromethane
13.5 µg/L
No EPA limit set
2/3 SYR4
Monobromoacetic Acid
9.2 µg/L
No EPA limit set
1/3 SYR4
Chromium
4.97 µg/L 5%
of the EPA limit 100 µg/L
2/3 SYR4
Dibromochloromethane
3.58 µg/L
No EPA limit set
1/3 SYR4
Dibromoacetic Acid
2.06 µg/L
No EPA limit set
1/3 SYR4
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
1/3 SYR4
Xylenes, Total
1.02 µg/L 0%
of the EPA limit 10000 µg/L
1/3 SYR4
Pfba
0.0093 µg/L
No EPA limit set
1/3 UCMR-5
Lead
0.0041 mg/L 28%
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.

Water suppliers serving ZIP 63090

SupplierStatePopulation served
WASHINGTON PWS MO 14,068
THOMAS HILL PWSD 1 MO 11,250
FRANKLIN COUNTY PWSD 1 MO 3,500

Frequently asked questions about ZIP 63090 tap water

Is the tap water in ZIP 63090 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 63090. 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 63090?

3 public water suppliers report EPA drinking-water monitoring for ZIP 63090. Each is listed above with its population served.

What contaminants are in ZIP 63090's water?

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