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Tap water quality report

Calvin, LA

EPA monitoring detected 20 contaminants across the 1 water supplier serving Calvin. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
591
people served
20
contaminants found
Louisiana rankings Lead in Louisiana PFAS in Louisiana

What was found in Calvin'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
700 µg/L 54%
of the EPA limit 1300 µg/L
 1/1 SYR4
TTHM
520.6 µg/L 651%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 1/1 SYR4
Dibromochloromethane
212 µg/L
No EPA limit set
 1/1 SYR4
Total Haloacetic Acids (HAA5)
173.6 µg/L 289%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Bromodichloromethane
150 µg/L
No EPA limit set
 1/1 SYR4
Chloroform
131 µg/L
No EPA limit set
 1/1 SYR4
Bromoform
115 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
78.1 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
64.6 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
64.4 µg/L
No EPA limit set
 1/1 SYR4
Monobromoacetic Acid
40.7 µg/L
No EPA limit set
 1/1 SYR4
Nitrate-Nitrite
31 µg/L 0.3%
of the EPA limit 10000 µg/L
 1/1 SYR4
Barium
16 µg/L 0.8%
of the EPA limit 2000 µg/L
 1/1 SYR4
Lead
5 µg/L 33%
of the EPA limit 15 µg/L
 1/1 SYR4
Monochloroacetic Acid
2.2 µg/L
No EPA limit set
 1/1 SYR4
2,4-D
1.64 µg/L 2.3%
of the EPA limit 70 µg/L
 1/1 SYR4
Dalapon
1.64 µg/L 0.8%
of the EPA limit 200 µg/L
 1/1 SYR4
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/1 SYR4
Lead
0.0074 mg/L 49%
of the EPA limit 0.0150 mg/L
 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 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 Calvin

SupplierPopulation served
VILLAGE OF CALVIN WATER SYSTEM 591

Frequently asked questions about Calvin tap water

Is Calvin tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Calvin. 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 Calvin?

1 public water supplier report drinking-water monitoring for Calvin, Louisiana to the EPA. Each is listed above with its population served.

What contaminants are in Calvin's water?

The contaminants EPA monitoring detected in Calvin include Copper, TTHM, Fluoride, Dibromochloromethane, 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.