Is City of Denham Springs Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Livingston Parish

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2015-08-01 → 2015-08-31
MCL	Health-based	Resolved	2015-08-01 → 2015-08-31
MCL	Health-based	Resolved	2015-08-01 → 2015-08-31
MCL	Health-based	Resolved	2015-08-01 → 2015-08-31
MCL	Health-based	Archived	2000-07-01 → 2000-07-31
MCL	Health-based	Archived	2000-07-01 → 2000-07-31
MCL	Health-based	Archived	1991-07-01 → 1991-07-31
MCL	Health-based	Archived	1991-07-01 → 1991-07-31
MCL	Health-based	Archived	1991-07-01 → 1991-07-31
MR	Monitoring	Resolved	2021-01-17

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
TTHM	25.75 µg/L 32% of the EPA limit 80 µg/L worst single sample: 37.2 µg/L	116/118	SYR4	2012–2019
Chloroform	14.34 µg/L No EPA limit set worst single sample: 23.4 µg/L	113/118	SYR4	2012–2019
Dibromochloromethane	5.235 µg/L No EPA limit set worst single sample: 7.63 µg/L	111/118	SYR4	2012–2019
Bromodichloromethane	7.564 µg/L No EPA limit set worst single sample: 9.68 µg/L	109/118	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	11.84 µg/L 20% of the EPA limit 60 µg/L worst single sample: 17.5 µg/L	47/118	SYR4	2012–2019
Dichloroacetic Acid	7.83 µg/L No EPA limit set worst single sample: 8.4 µg/L	46/118	SYR4	2012–2019
Dibromoacetic Acid	1.9 µg/L No EPA limit set worst single sample: 2.1 µg/L	41/118	SYR4	2012–2019
Trichloroacetic Acid	3.17 µg/L No EPA limit set worst single sample: 9.6 µg/L	39/118	SYR4	2012–2019
Lead	2.5 µg/L 17% of the EPA limit 15 µg/L worst single sample: 3 µg/L	31/67	SYR4	2014–2018
Bromoform	2.43 µg/L No EPA limit set worst single sample: 2.92 µg/L	25/118	SYR4	2012–2019
Copper	100 µg/L 7.7% of the EPA limit 1300 µg/L	21/67	SYR4	2014–2018
Fluoride	600 µg/L 15% of the EPA limit 4000 µg/L	15/15	SYR4	2012–2018
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	11/11	LCR	2023
Lithium	12.9 µg/L No EPA limit set	10/10	UCMR-5	2024
Monochloroacetic Acid	0.5485 µg/L No EPA limit set worst single sample: 0.5500 µg/L	4/118	SYR4	2012–2019
Nitrate-Nitrite	46 µg/L 0.5% of the EPA limit 10000 µg/L	4/116	SYR4	2012–2019
Barium	12 µg/L 0.6% of the EPA limit 2000 µg/L	1/15	SYR4	2012–2018
Combined Radium (-226 And -228)	0.6630 pCi/L 13% of the EPA limit 5 pCi/L	1/7	SYR4	2015–2018
Di(2-ethylhexyl) Phthalate	0.5100 µg/L 8.5% of the EPA limit 6 µg/L	1/9	SYR4	2012–2017
Gross Beta Particle Activity	2.02 pCi/L No EPA limit set	1/15	SYR4	2012–2018

90 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: LANDRY, GERARD
Phone: 225-667-8304
Email: [email protected]

Frequently asked questions about City of Denham Springs Water

Is City of Denham Springs Water tap water safe to drink?

EPA monitoring detected 20 contaminants in City of Denham Springs Water's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in City of Denham Springs Water's water?

EPA monitoring detected TTHM, Chloroform, Dibromochloromethane, Bromodichloromethane, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does City of Denham Springs Water serve?

City of Denham Springs Water reports serving 25,725 people in Louisiana, per its EPA record.

Has City of Denham Springs Water had any water quality violations?

The EPA has 21 violations on file for City of Denham Springs Water, of which 9 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.