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Tap water quality report

ZIP 70049 — Laplace, LA

EPA monitoring across the 1 water supplier serving ZIP 70049 in Laplace, LA detected 30 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
3,702
people served
30
contaminants found

What was found in ZIP 70049

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
2000 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Copper
925 µg/L 71%
of the EPA limit 1300 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Fluoride
840 µg/L 21%
of the EPA limit 4000 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
TTHM
90.13 µg/L 113%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Chloroform
70.52 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
62.96 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Barium
58 µg/L 2.9%
of the EPA limit 2000 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Dichloroacetic Acid
34.85 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Dalapon
33.279 µg/L 17%
of the EPA limit 200 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Trichloroacetic Acid
26.3 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Bromodichloromethane
23.45 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Lithium
10 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2023
1/1 UCMR-5
Dibromochloromethane
5.47 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.535 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Gross Beta Particle Activity
3.745 pCi/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Lead
2.2 µg/L 15%
of the EPA limit 15 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Xylenes, Total
1.637 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.59 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Arsenic
1.17 µg/L 12%
of the EPA limit 10 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.9825 pCi/L 20%
of the EPA limit 5 pCi/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Di(2-ethylhexyl) Phthalate
0.9425 µg/L 16%
of the EPA limit 6 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Combined Uranium
0.8185 µg/L 2.7%
of the EPA limit 30 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2017
1/1 SYR4
Simazine
0.6870 µg/L 17%
of the EPA limit 4 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Ethylbenzene
0.6075 µg/L 0.1%
of the EPA limit 700 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Bromoform
0.5000 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Atrazine
0.4235 µg/L 14%
of the EPA limit 3 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Hexachlorocyclopentadiene
0.0458 µg/L 0.1%
of the EPA limit 50 µg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2019
1/1 SYR4
Pfba
0.0057 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2023
1/1 UCMR-5
PFBS
0.0037 µg/L
No EPA limit set
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2023
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: ST JOHN WATER DISTRICT 2 · 3,702 people · 2025
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 70049

SupplierStatePopulation served
ST JOHN WATER DISTRICT 2 LA 3,702

Frequently asked questions about ZIP 70049 tap water

Is the tap water in ZIP 70049 safe to drink?

EPA testing detected 30 contaminants across the water suppliers serving ZIP 70049. 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 70049?

1 public water supplier report EPA drinking-water monitoring for ZIP 70049. Each is listed above with its population served.

What contaminants are in ZIP 70049's water?

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