← Union, MO

Tap water quality report

ZIP 63084 — Union, MO

EPA monitoring across the 2 water suppliers serving ZIP 63084 in Union, MO detected 19 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
19,488
people served
19
contaminants found

What was found in ZIP 63084

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
Nitrate-Nitrite
720 µg/L 7.2%
of the EPA limit 10000 µg/L
Main supplier: UNION PWS · 12,348 people · 2019
Highest in the ZIP: 6779 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
2/2 SYR4
Copper
117.45 µg/L 9%
of the EPA limit 1300 µg/L
Main supplier: UNION PWS · 12,348 people · 2018
Highest in the ZIP: 642.4 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017
2/2 SYR4
Barium
397.8 µg/L 20%
of the EPA limit 2000 µg/L
Main supplier: UNION PWS · 12,348 people · 2017
2/2 SYR4
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
Main supplier: UNION PWS · 12,348 people · 2017
2/2 SYR4
TTHM
6.7395 µg/L 8.4%
of the EPA limit 80 µg/L
Main supplier: UNION PWS · 12,348 people · 2019
Highest in the ZIP: 9.848 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
2/2 SYR4
Lead
7.726 µg/L 52%
of the EPA limit 15 µg/L
Main supplier: UNION PWS · 12,348 people · 2018
2/2 SYR4
Chloroform
6.26 µg/L
No EPA limit set
Main supplier: UNION PWS · 12,348 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
4.97 pCi/L 33%
of the EPA limit 15 pCi/L
Main supplier: UNION PWS · 12,348 people · 2016
1/2 SYR4
Monobromoacetic Acid
4.7095 µg/L
No EPA limit set
Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
1/2 SYR4
Dibromochloromethane
0.6425 µg/L
No EPA limit set
Main supplier: UNION PWS · 12,348 people · 2019
Highest in the ZIP: 3.266 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
2/2 SYR4
Bromodichloromethane
0.8000 µg/L
No EPA limit set
Main supplier: UNION PWS · 12,348 people · 2019
Highest in the ZIP: 3.244 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
2/2 SYR4
Chromium
2.466 µg/L 2.5%
of the EPA limit 100 µg/L
Main supplier: UNION PWS · 12,348 people · 2017
Highest in the ZIP: 3.0075 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017
2/2 SYR4
Dichloroacetic Acid
2.68 µg/L
No EPA limit set
Main supplier: UNION PWS · 12,348 people · 2019
Highest in the ZIP: 2.9175 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
2/2 SYR4
Trichloroacetic Acid
2.774 µg/L
No EPA limit set
Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
1/2 SYR4
Arsenic
1.609 µg/L 16%
of the EPA limit 10 µg/L
Main supplier: UNION PWS · 12,348 people · 2017
1/2 SYR4
Dibromoacetic Acid
1.364 µg/L
No EPA limit set
Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1 pCi/L 20%
of the EPA limit 5 pCi/L
Main supplier: UNION PWS · 12,348 people · 2016
1/2 SYR4
Bromoform
0.7725 µg/L
No EPA limit set
Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019
1/2 SYR4
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: UNION PWS · 12,348 people · 2024
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 63084

SupplierStatePopulation served
UNION PWS MO 12,348
CLARK COUNTY CONS PWSD 1 MO 7,140

Frequently asked questions about ZIP 63084 tap water

Is the tap water in ZIP 63084 safe to drink?

EPA testing detected 19 contaminants across the water suppliers serving ZIP 63084. 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 63084?

2 public water suppliers report EPA drinking-water monitoring for ZIP 63084. Each is listed above with its population served.

What contaminants are in ZIP 63084's water?

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