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Tap water quality report

Louisiana, MO

EPA monitoring detected 19 contaminants across the 1 water supplier serving Louisiana. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
3,244
people served
19
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Louisiana's water

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
5675.5 µg/L 57%
of the EPA limit 10000 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Fluoride
1246 µg/L 31%
of the EPA limit 4000 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Copper
158.6 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
TTHM
148.1 µg/L 185%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Chloroform
105.4 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
93.74 µg/L 156%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Barium
91.145 µg/L 4.6%
of the EPA limit 2000 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Trichloroacetic Acid
50.92 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Dichloroacetic Acid
39.81 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Bromodichloromethane
30.06 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Lead
15.39 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Dibromochloromethane
12.735 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Monobromoacetic Acid
10.785 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Dibromoacetic Acid
3.223 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Bromoform
2.388 µg/L
No EPA limit set
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Chromium
2.0425 µg/L 2%
of the EPA limit 100 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Atrazine
1.8405 µg/L 61%
of the EPA limit 3 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Carbon Tetrachloride
0.9800 µg/L 20%
of the EPA limit 5 µg/L
Main supplier: LOUISIANA PWS · 3,244 people · 2019
1/1 SYR4
Lead
0.0044 mg/L 29%
of the EPA limit 0.0150 mg/L
Main supplier: LOUISIANA PWS · 3,244 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. 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 Louisiana

SupplierPopulation served
LOUISIANA PWS 3,244

Frequently asked questions about Louisiana tap water

Is Louisiana tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Louisiana. 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 Louisiana?

1 public water supplier report drinking-water monitoring for Louisiana, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in Louisiana's water?

The contaminants EPA monitoring detected in Louisiana include Nitrate-Nitrite, Fluoride, Copper, TTHM, Chloroform. The full list, with the level at the main supplier 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.