← Patterson, LA

Tap water quality report

ZIP 70392 — Patterson, LA

EPA monitoring across the 2 water suppliers serving ZIP 70392 in Patterson, 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.

2
water suppliers
13,835
people served
30
contaminants found

What was found in ZIP 70392

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
2839.999999999995 µg/L 218%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Nitrate-Nitrite
1000 µg/L 10%
of the EPA limit 10000 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Fluoride
160 µg/L 4%
of the EPA limit 4000 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Barium
78.39999999999999 µg/L 3.9%
of the EPA limit 2000 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
TTHM
72.7 µg/L 91%
of the EPA limit 80 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Chloroform
53.254999999999995 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
44.305 µg/L 74%
of the EPA limit 60 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Dalapon
38.0848 µg/L 19%
of the EPA limit 200 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Dichloroacetic Acid
23.33 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Trichloroacetic Acid
20 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Bromodichloromethane
18 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Lead
13.7 µg/L 91%
of the EPA limit 15 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Dibromochloromethane
5.394999999999996 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Monobromoacetic Acid
1.3599999999999999 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
Highest in the ZIP: 5.1 µg/L — ST MARY PARISH W&S #2 BAYOU VISTA · 5,379 people · 2019
2/2 SYR4
Gross Beta Particle Activity
4.205 pCi/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Monochloroacetic Acid
2.795 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
2/2 SYR4
Dibromoacetic Acid
1.8400000000000005 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
Highest in the ZIP: 2.235 µg/L — ST MARY PARISH W&S #2 BAYOU VISTA · 5,379 people · 2019
2/2 SYR4
Arsenic
1.3599999999999999 µg/L 14%
of the EPA limit 10 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Combined Uranium
1.262 µg/L 4.2%
of the EPA limit 30 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Di(2-ethylhexyl) Phthalate
1.1389999999999998 µg/L 19%
of the EPA limit 6 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Carbon Tetrachloride
0.8100 µg/L 16%
of the EPA limit 5 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Xylenes, Total
0.6600 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Bromoform
0.5800 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.5235 pCi/L 10%
of the EPA limit 5 pCi/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Selenium
0.5100 µg/L 1%
of the EPA limit 50 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Atrazine
0.5025 µg/L 17%
of the EPA limit 3 µg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2019
1/2 SYR4
Pfba
0.0061 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2024
Highest in the ZIP: 0.0069 µg/L — ST MARY PARISH W&S #2 BAYOU VISTA · 5,379 people · 2025
2/2 UCMR-5
Pfpea
0.0032 µg/L
No EPA limit set
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2024
2/2 UCMR-5
Pfhxa
0.0030 µg/L
No EPA limit set
Highest in the ZIP: ST MARY PARISH W&S #2 BAYOU VISTA · 5,379 people · 2025
1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF PATTERSON WATER SYSTEM · 8,456 people · 2023
Highest in the ZIP: 0.00030 mg/L — ST MARY PARISH W&S #2 BAYOU VISTA · 5,379 people · 2025
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 70392

SupplierStatePopulation served
CITY OF PATTERSON WATER SYSTEM LA 8,456
ST MARY PARISH W&S #2 BAYOU VISTA LA 5,379

Frequently asked questions about ZIP 70392 tap water

Is the tap water in ZIP 70392 safe to drink?

EPA testing detected 30 contaminants across the water suppliers serving ZIP 70392. 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 70392?

2 public water suppliers report EPA drinking-water monitoring for ZIP 70392. Each is listed above with its population served.

What contaminants are in ZIP 70392's water?

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