Is Waterworks District 7 Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Caddo 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	2010-07-01 → 2010-07-31
MCL	Health-based	Resolved	2010-07-01 → 2010-07-31
MCL	Health-based	Resolved	2010-07-01 → 2010-07-31
MCL	Health-based	Resolved	2009-06-01 → 2009-06-30
MCL	Health-based	Resolved	2009-06-01 → 2009-06-30
MCL	Health-based	Resolved	2009-06-01 → 2009-06-30
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
Other	Monitoring	Resolved	2022-07-01

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
Copper	600 µg/L 46% of the EPA limit 1300 µg/L worst single sample: 700 µg/L	48/80	SYR4	2012–2019
Fluoride	256.5 µg/L 6.4% of the EPA limit 4000 µg/L worst single sample: 260 µg/L	28/28	SYR4	2013–2019
Lead	2 µg/L 13% of the EPA limit 15 µg/L worst single sample: 8 µg/L	22/80	SYR4	2012–2019
Nitrate-Nitrite	429.5 µg/L 4.3% of the EPA limit 10000 µg/L worst single sample: 430 µg/L	22/88	SYR4	2012–2019
Barium	114 µg/L 5.7% of the EPA limit 2000 µg/L worst single sample: 190 µg/L	20/28	SYR4	2013–2019
Dibromochloromethane	3.107 µg/L No EPA limit set worst single sample: 3.44 µg/L	10/14	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	10/10	LCR	2024
TTHM	9.429 µg/L 12% of the EPA limit 80 µg/L worst single sample: 10.41 µg/L	10/14	SYR4	2013–2019
Bromoform	6.5 µg/L No EPA limit set worst single sample: 8.78 µg/L	9/14	SYR4	2013–2019
Di(2-ethylhexyl) Phthalate	0.9580 µg/L 16% of the EPA limit 6 µg/L worst single sample: 1.14 µg/L	8/28	SYR4	2013–2019
Lithium	42 µg/L No EPA limit set	8/8	UCMR-5	2024
Bromodichloromethane	1.607 µg/L No EPA limit set worst single sample: 1.7 µg/L	7/14	SYR4	2013–2019
Gross Beta Particle Activity	1.93 pCi/L No EPA limit set worst single sample: 2.05 pCi/L	7/28	SYR4	2013–2019
Combined Radium (-226 And -228)	0.9637 pCi/L 19% of the EPA limit 5 pCi/L worst single sample: 0.9690 pCi/L	6/20	SYR4	2016–2019
Dibromoacetic Acid	2.425 µg/L No EPA limit set worst single sample: 2.5 µg/L	6/14	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	3.475 µg/L 5.8% of the EPA limit 60 µg/L worst single sample: 3.8 µg/L	6/14	SYR4	2013–2019
Chloroform	0.7455 µg/L No EPA limit set worst single sample: 0.7800 µg/L	4/14	SYR4	2013–2019
Arsenic	3.85 µg/L 39% of the EPA limit 10 µg/L worst single sample: 4 µg/L	2/28	SYR4	2013–2019
Gross Alpha, Excl. Radon And U	2.053 pCi/L 14% of the EPA limit 15 pCi/L worst single sample: 2.09 pCi/L	2/28	SYR4	2013–2019
Dichloroacetic Acid	0.9000 µg/L No EPA limit set	1/14	SYR4	2013–2019
Trichloroacetic Acid	0.6500 µg/L No EPA limit set	1/14	SYR4	2013–2019

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-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MIKOVICH, STEVE
Phone: 318-925-6880
Email: waterworks@wwd7.com

Frequently asked questions about Waterworks District 7

Is Waterworks District 7 tap water safe to drink?

EPA monitoring detected 21 contaminants in Waterworks District 7'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 Waterworks District 7's water?

EPA monitoring detected Copper, Fluoride, Lead, Nitrate-Nitrite, Barium, and others. The full list with the level and data source for each is above.

How many people does Waterworks District 7 serve?

Waterworks District 7 reports serving 5,817 people in Louisiana, per its EPA record.

Has Waterworks District 7 had any water quality violations?

The EPA has 41 violations on file for Waterworks District 7, 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.