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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 level at the main supplier 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 level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
550 µg/L 42%
of the EPA limit 1300 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
TTHM
482.22 µg/L 603%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Dibromochloromethane
200 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Bromodichloromethane
136.3 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Bromoform
105.75 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
92.38 µg/L 154%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Chloroform
81.02 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Dibromoacetic Acid
40.7 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Monobromoacetic Acid
39.595 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Dichloroacetic Acid
37.15 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Trichloroacetic Acid
31.14 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Nitrate-Nitrite
31 µg/L 0.3%
of the EPA limit 10000 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
Barium
16 µg/L 0.8%
of the EPA limit 2000 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Lead
3.4 µg/L 23%
of the EPA limit 15 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Monochloroacetic Acid
2.13 µg/L
No EPA limit set
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2019
1/1 SYR4
2,4-D
1.64 µg/L 2.3%
of the EPA limit 70 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Dalapon
1.64 µg/L 0.8%
of the EPA limit 200 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2017
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: VILLAGE OF CALVIN WATER SYSTEM · 591 people · 2023
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. 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, Bromodichloromethane. The full list, with the level at the main supplier 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.