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Tap water quality report

Denham Springs, LA

EPA monitoring detected 27 contaminants across the 2 water suppliers serving Denham Springs. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
103,872
people served
27
contaminants found
Louisiana rankings Lead in Louisiana PFAS in Louisiana

What was found in Denham Springs'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
900 µg/L 69%
of the EPA limit 1300 µg/L
 2/2 SYR4
Fluoride
600 µg/L 15%
of the EPA limit 4000 µg/L
 2/2 SYR4
Nitrate-Nitrite
500 µg/L 5%
of the EPA limit 10000 µg/L
 2/2 SYR4
TTHM
37.2 µg/L 47%
of the EPA limit 80 µg/L
 2/2 SYR4
Barium
31 µg/L 1.6%
of the EPA limit 2000 µg/L
 2/2 SYR4
Chloroform
23.4 µg/L
No EPA limit set
 2/2 SYR4
Xylenes, Total
22.48 µg/L 0.2%
of the EPA limit 10000 µg/L
 1/2 SYR4
Lead
22 µg/L 147%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Lithium
19 µg/L
No EPA limit set
 2/2 UCMR-5
Total Haloacetic Acids (HAA5)
17.5 µg/L 29%
of the EPA limit 60 µg/L
 2/2 SYR4
Bromodichloromethane
9.68 µg/L
No EPA limit set
 2/2 SYR4
Trichloroacetic Acid
9.6 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
8.4 µg/L
No EPA limit set
 2/2 SYR4
Di(2-ethylhexyl) Phthalate
7.89 µg/L 132%
of the EPA limit, in the worst sample — 6 µg/L
 2/2 SYR4
Dibromochloromethane
7.63 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
2.92 µg/L
No EPA limit set
 2/2 SYR4
Dibromoacetic Acid
2.1 µg/L
No EPA limit set
 2/2 SYR4
Gross Beta Particle Activity
2.02 pCi/L
No EPA limit set
 2/2 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/2 SYR4
Combined Uranium
1.49 µg/L 5%
of the EPA limit 30 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
1.34 pCi/L 27%
of the EPA limit 5 pCi/L
 2/2 SYR4
Antimony, Total
1.1 µg/L 18%
of the EPA limit 6 µg/L
 1/2 SYR4
Selenium
1.1 µg/L 2.2%
of the EPA limit 50 µg/L
 1/2 SYR4
Ethylbenzene
1.05 µg/L 0.2%
of the EPA limit 700 µg/L
 1/2 SYR4
Toluene
0.5600 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/2 SYR4
Monochloroacetic Acid
0.5500 µg/L
No EPA limit set
 1/2 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 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 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 Denham Springs

SupplierPopulation served
WARD II WATER DISTRICT 78,147
CITY OF DENHAM SPRINGS WATER SYSTEM 25,725

Frequently asked questions about Denham Springs tap water

Is Denham Springs tap water safe to drink?

EPA testing detected 27 contaminants in the water serving Denham Springs. 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 Denham Springs?

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

What contaminants are in Denham Springs's water?

The contaminants EPA monitoring detected in Denham Springs include Copper, Fluoride, Nitrate-Nitrite, TTHM, Barium. 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.