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Tap water quality report

Lafayette, LA

EPA monitoring detected 29 contaminants across the 17 water suppliers serving Lafayette. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

17
water suppliers
203,377
people served
29
contaminants found
Louisiana rankings Lead in Louisiana PFAS in Louisiana

What was found in Lafayette'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
4100 µg/L 315%
of the EPA limit, in the worst sample — 1300 µg/L
 13/17 SYR4
Nitrate-Nitrite
1100 µg/L 11%
of the EPA limit 10000 µg/L
 6/17 SYR4
Barium
370 µg/L 19%
of the EPA limit 2000 µg/L
 4/17 SYR4
Fluoride
340 µg/L 8.5%
of the EPA limit 4000 µg/L
 6/17 SYR4
Lead
68 µg/L 453%
of the EPA limit, in the worst sample — 15 µg/L
 14/17 SYR4
Total Haloacetic Acids (HAA5)
62.4 µg/L 104%
of the EPA limit, in the worst sample — 60 µg/L
 16/17 SYR4
Monochloroacetic Acid
60 µg/L
No EPA limit set
 8/17 SYR4
TTHM
49.1 µg/L 61%
of the EPA limit 80 µg/L
 16/17 SYR4
Lithium
37.4 µg/L
No EPA limit set
 3/17 UCMR-5
Dibromochloromethane
17 µg/L
No EPA limit set
 16/17 SYR4
Bromodichloromethane
15 µg/L
No EPA limit set
 16/17 SYR4
Trichloroacetic Acid
14 µg/L
No EPA limit set
 15/17 SYR4
Chloroform
12 µg/L
No EPA limit set
 16/17 SYR4
Bromoform
11.1 µg/L
No EPA limit set
 16/17 SYR4
Dibromoacetic Acid
11 µg/L
No EPA limit set
 16/17 SYR4
Dichloroacetic Acid
11 µg/L
No EPA limit set
 16/17 SYR4
Chromium
10 µg/L 10%
of the EPA limit 100 µg/L
 4/17 SYR4
Selenium
10 µg/L 20%
of the EPA limit 50 µg/L
 4/17 SYR4
Arsenic
7 µg/L 70%
of the EPA limit 10 µg/L
 6/17 SYR4
Di(2-ethylhexyl) Phthalate
5.1 µg/L 85%
of the EPA limit 6 µg/L
 3/17 SYR4
Gross Beta Particle Activity
4.83 pCi/L
No EPA limit set
 6/17 SYR4
Monobromoacetic Acid
3.2 µg/L
No EPA limit set
 9/17 SYR4
Combined Radium (-226 And -228)
2.74 pCi/L 55%
of the EPA limit 5 pCi/L
 5/17 SYR4
Dalapon
2.1 µg/L 1.1%
of the EPA limit 200 µg/L
 2/17 SYR4
P-Dichlorobenzene
1.73 µg/L 2.3%
of the EPA limit 75 µg/L
 1/17 SYR4
Oxamyl
1.6 µg/L 0.8%
of the EPA limit 200 µg/L
 1/17 SYR4
2,4-D
0.1700 µg/L 0.2%
of the EPA limit 70 µg/L
 1/17 SYR4
Endrin
0.0140 µg/L 0.7%
of the EPA limit 2 µg/L
 1/17 SYR4
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 17/17 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 Lafayette

SupplierPopulation served
LAFAYETTE UTILITIES WATER SYSTEM 169,389
LPWDN NORTH REGION 16,833
LPWD NORTH PRODUCTION FACILITY 4,122
LPWDN SOUTH REGION 4,032
LPWDN PURCHASE WEST SCOTT 3,051
LPWDN WILDERNESS TRAIL 1,644
LPWDN LA NEUVILLE HOLIDAY SUBDIVISION WS 1,455
LPWDN CARMEL DRIVE 576
LPWDN HOLIDAY MOBILE ESTATES WS 426
LPWDN SOUTH PARK 372
LPWDN FAIRWAY VILLAGE WS 339
LPWDN GUILLOT VILLAGE 300
KINGS COURT MHP WATER SYSTEM 220
WEST GATE TRAILER PARK WATER SYSTEM 219
G & J MOBILE HOME ESTATES WATER SYSTEM 186
ROYAL MOBILE ESTATES WATER SYSTEM 141
LPWDN TOWNSHIP WS 72

Frequently asked questions about Lafayette tap water

Is Lafayette tap water safe to drink?

EPA testing detected 29 contaminants in the water serving Lafayette. 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 Lafayette?

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

What contaminants are in Lafayette's water?

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