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Tap water quality report

ZIP 50119 — Knoxville, IA

EPA monitoring across the 1 water supplier serving ZIP 50119 in Knoxville, IA detected 13 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.

1
water supplier
5,687
people served
13
contaminants found

What was found in ZIP 50119

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
267.1 µg/L 21%
of the EPA limit 1300 µg/L
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2018
1/1 SYR4
Lithium
140 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2023
1/1 UCMR-5
TTHM
13.889 µg/L 17%
of the EPA limit 80 µg/L
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Lead
11.885 µg/L 79%
of the EPA limit 15 µg/L
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2018
1/1 SYR4
Bromodichloromethane
6.18 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Chloroform
4.208 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Dibromochloromethane
3.4875 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Monochloroacetic Acid
1.67 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Dichloroacetic Acid
1.52 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Trichloroacetic Acid
1.0285 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Dibromoacetic Acid
0.9010 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Bromoform
0.5200 µg/L
No EPA limit set
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2019
1/1 SYR4
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: MARION CO. RURAL WATER DISTRICT · 5,687 people · 2024
1/1 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 50119

SupplierStatePopulation served
MARION CO. RURAL WATER DISTRICT IA 5,687

Frequently asked questions about ZIP 50119 tap water

Is the tap water in ZIP 50119 safe to drink?

EPA testing detected 13 contaminants across the water suppliers serving ZIP 50119. 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 50119?

1 public water supplier report EPA drinking-water monitoring for ZIP 50119. Each is listed above with its population served.

What contaminants are in ZIP 50119's water?

EPA monitoring detected Copper, Lithium, TTHM, Lead, Bromodichloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.