Tap WaterIndex

← Louisiana

Tap water quality report

Plaquemine, LA

EPA monitoring detected 41 contaminants across the 6 water suppliers serving Plaquemine. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

6
water suppliers
32,739
people served
41
contaminants found
Louisiana rankings Lead in Louisiana PFAS in Louisiana

What was found in Plaquemine's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
17900 µg/L 1377%
of the EPA limit, in the worst sample — 1300 µg/L
 6/6 SYR4
Nitrate-Nitrite
2000 µg/L 20%
of the EPA limit 10000 µg/L
 3/6 SYR4
Fluoride
700 µg/L 18%
of the EPA limit 4000 µg/L
 3/6 SYR4
Barium
470 µg/L 24%
of the EPA limit 2000 µg/L
 2/6 SYR4
Total Haloacetic Acids (HAA5)
149.1 µg/L 249%
of the EPA limit, in the worst sample — 60 µg/L
 6/6 SYR4
Lead
134 µg/L 893%
of the EPA limit, in the worst sample — 15 µg/L
 6/6 SYR4
Chloroform
115.65 µg/L
No EPA limit set
 6/6 SYR4
TTHM
109 µg/L 136%
of the EPA limit, in the worst sample — 80 µg/L
 6/6 SYR4
Dichloroacetic Acid
77 µg/L
No EPA limit set
 6/6 SYR4
Trichloroacetic Acid
63 µg/L
No EPA limit set
 6/6 SYR4
Dalapon
40.58 µg/L 20%
of the EPA limit 200 µg/L
 2/6 SYR4
Arsenic
37 µg/L 370%
of the EPA limit, in the worst sample — 10 µg/L
 2/6 SYR4
Bromodichloromethane
29 µg/L
No EPA limit set
 5/6 SYR4
Lithium
21 µg/L
No EPA limit set
 3/6 UCMR-5
Dibromochloromethane
17 µg/L
No EPA limit set
 5/6 SYR4
Monochloroacetic Acid
13 µg/L
No EPA limit set
 3/6 SYR4
Chromium
10 µg/L 10%
of the EPA limit 100 µg/L
 1/6 SYR4
Monobromoacetic Acid
9.5 µg/L
No EPA limit set
 3/6 SYR4
Xylenes, Total
7.5 µg/L 0.1%
of the EPA limit 10000 µg/L
 1/6 SYR4
Dibromoacetic Acid
5.6 µg/L
No EPA limit set
 5/6 SYR4
Gross Alpha, Excl. Radon And U
4.76 pCi/L 32%
of the EPA limit 15 pCi/L
 1/6 SYR4
Atrazine
4.7 µg/L 157%
of the EPA limit, in the worst sample — 3 µg/L
 1/6 SYR4
Gross Beta Particle Activity
4 pCi/L
No EPA limit set
 2/6 SYR4
Bromoform
2.6 µg/L
No EPA limit set
 3/6 SYR4
Combined Radium (-226 And -228)
2.38 pCi/L 48%
of the EPA limit 5 pCi/L
 3/6 SYR4
1,2-Dichloroethane
2.25 µg/L 45%
of the EPA limit 5 µg/L
 1/6 SYR4
Carbon Tetrachloride
2.05 µg/L 41%
of the EPA limit 5 µg/L
 1/6 SYR4
Di(2-ethylhexyl) Phthalate
2 µg/L 33%
of the EPA limit 6 µg/L
 3/6 SYR4
cis-1,2-Dichloroethylene
1.55 µg/L 2.2%
of the EPA limit 70 µg/L
 1/6 SYR4
Diquat
1.1 µg/L 5.5%
of the EPA limit 20 µg/L
 1/6 SYR4
Hexachlorocyclopentadiene
0.8800 µg/L 1.8%
of the EPA limit 50 µg/L
 1/6 SYR4
Ethylbenzene
0.6600 µg/L 0.1%
of the EPA limit 700 µg/L
 1/6 SYR4
Vinyl Chloride
0.5800 µg/L 29%
of the EPA limit 2 µg/L
 1/6 SYR4
2,4-D
0.3900 µg/L 0.6%
of the EPA limit 70 µg/L
 1/6 SYR4
Hexachlorobenzene
0.1000 µg/L 10%
of the EPA limit 1 µg/L
 1/6 SYR4
Pfba
0.0142 µg/L
No EPA limit set
 2/6 UCMR-5
PFOA
0.0062 µg/L
No EPA limit set
 1/6 UCMR-5
PFOS
0.0060 µg/L
No EPA limit set
 1/6 UCMR-5
Pfpea
0.0032 µg/L
No EPA limit set
 1/6 UCMR-5
PFBS
0.0030 µg/L
No EPA limit set
 1/6 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 6/6 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. 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 Plaquemine

SupplierPopulation served
CITY OF PLAQUEMINE WATER SYSTEM 14,043
EAST IBERVILLE WATER SYSTEM 6,657
INTRACOASTAL WATER SYSTEM WEST 6,489
INTRACOASTAL WATER SYSTEM EAST 2,940
NORTH IBERVILLE WATER SYSTEM 1,524
HIGHWAY 1148 WATER SYSTEM 1,086

Frequently asked questions about Plaquemine tap water

Is Plaquemine tap water safe to drink?

EPA testing detected 41 contaminants in the water serving Plaquemine. 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 Plaquemine?

6 public water suppliers report drinking-water monitoring for Plaquemine, Louisiana to the EPA. Each is listed above with its population served.

What contaminants are in Plaquemine's water?

The contaminants EPA monitoring detected in Plaquemine include Copper, Nitrate-Nitrite, Fluoride, Barium, Total Haloacetic Acids (HAA5). The full list, with the highest level found 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.