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Tap water quality report

Sunset, LA

EPA monitoring detected 21 contaminants across the 3 water suppliers serving Sunset. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
10,773
people served
21
contaminants found
Louisiana rankings Lead in Louisiana PFAS in Louisiana

What was found in Sunset'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
3400 µg/L 262%
of the EPA limit, in the worst sample — 1300 µg/L
 3/3 SYR4
Nitrate-Nitrite
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 2/3 SYR4
Fluoride
440 µg/L 11%
of the EPA limit 4000 µg/L
 3/3 SYR4
Barium
220 µg/L 11%
of the EPA limit 2000 µg/L
 3/3 SYR4
Lead
29 µg/L 193%
of the EPA limit, in the worst sample — 15 µg/L
 3/3 SYR4
TTHM
16.4 µg/L 21%
of the EPA limit 80 µg/L
 3/3 SYR4
Total Haloacetic Acids (HAA5)
11.2 µg/L 19%
of the EPA limit 60 µg/L
 3/3 SYR4
Monochloroacetic Acid
10 µg/L
No EPA limit set
 2/3 SYR4
Bromodichloromethane
6.1 µg/L
No EPA limit set
 3/3 SYR4
Dibromochloromethane
6 µg/L
No EPA limit set
 3/3 SYR4
Chloroform
3.4 µg/L
No EPA limit set
 3/3 SYR4
Arsenic
3.2 µg/L 32%
of the EPA limit 10 µg/L
 2/3 SYR4
Bromoform
2.7 µg/L
No EPA limit set
 3/3 SYR4
Dibromoacetic Acid
1.9 µg/L
No EPA limit set
 3/3 SYR4
Dichloroacetic Acid
1.8 µg/L
No EPA limit set
 3/3 SYR4
Trichloroacetic Acid
1.7 µg/L
No EPA limit set
 2/3 SYR4
Combined Uranium
1.49 µg/L 5%
of the EPA limit 30 µg/L
 2/3 SYR4
Di(2-ethylhexyl) Phthalate
1.45 µg/L 24%
of the EPA limit 6 µg/L
 3/3 SYR4
Combined Radium (-226 And -228)
1.163 pCi/L 23%
of the EPA limit 5 pCi/L
 2/3 SYR4
Monobromoacetic Acid
0.3380 µg/L
No EPA limit set
 1/3 SYR4
Lead
0.00092 mg/L 6.1%
of the EPA limit 0.0150 mg/L
 3/3 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 Sunset

SupplierPopulation served
ST LANDRY WATER WORKS DISTRICT 2 RURAL 4,761
TOWN OF SUNSET WATER SYSTEM 4,356
GREENBRIAR PRAIRIE BASSE WATER SYSTEM 1,656

Frequently asked questions about Sunset tap water

Is Sunset tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Sunset. 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 Sunset?

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

What contaminants are in Sunset's water?

The contaminants EPA monitoring detected in Sunset include Copper, Nitrate-Nitrite, Fluoride, Barium, Lead. 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.