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Tap water quality report

City of Covington Water Supply

EPA monitoring tested this supplier for 111 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
18
detected
16,185
people served
42
health-based violations
Louisiana rankingsLead in LouisianaPFAS in Louisiana
Water source
Ground water
Ownership
Local government
Counties served
St. Tammany 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.

42
health-based violations
57
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-05-30
TT Health-based Unaddressed 2024-05-30
TT Health-based Unaddressed 2024-05-30
MCL Health-based Archived 2015-12-01 → 2015-12-31
MCL Health-based Archived 2015-12-01 → 2015-12-31
MCL Health-based Archived 2015-12-01 → 2015-12-31
MCL Health-based Resolved 2012-04-01 → 2012-04-30
MCL Health-based Resolved 2012-04-01 → 2012-04-30
MCL Health-based Resolved 2012-04-01 → 2012-04-30
MCL Health-based Resolved 2012-04-01 → 2012-04-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
5.72 µg/L
No EPA limit set
worst single sample: 6.4 µg/L
40/40 SYR4 2012–2019
TTHM
10.41 µg/L 13%
of the EPA limit 80 µg/L
worst single sample: 11.2 µg/L
40/40 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
4.425 µg/L 7.4%
of the EPA limit 60 µg/L
worst single sample: 4.9 µg/L
36/40 SYR4 2012–2019
Dichloroacetic Acid
3.1 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
34/40 SYR4 2012–2019
Bromodichloromethane
3.145 µg/L
No EPA limit set
worst single sample: 3.6 µg/L
32/40 SYR4 2012–2019
Trichloroacetic Acid
1.8 µg/L
No EPA limit set
worst single sample: 1.9 µg/L
29/40 SYR4 2012–2019
Dibromochloromethane
2.26 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
25/40 SYR4 2012–2019
Lead
3.35 µg/L 22%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
18/64 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Dibromoacetic Acid
0.8080 µg/L
No EPA limit set
worst single sample: 0.8800 µg/L
10/40 SYR4 2012–2019
Nitrate-Nitrite
400 µg/L 4%
of the EPA limit 10000 µg/L
 10/52 SYR4 2012–2019
Copper
100 µg/L 7.7%
of the EPA limit 1300 µg/L
 6/64 SYR4 2014–2017
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 6/6 SYR4 2014–2017
Pentachlorophenol
0.1230 µg/L 12%
of the EPA limit 1 µg/L
 3/6 SYR4 2014–2017
Lithium
10.5 µg/L
No EPA limit set
 2/6 UCMR-5 2025
Combined Radium (-226 And -228)
0.5640 pCi/L 11%
of the EPA limit 5 pCi/L
 1/3 SYR4 2017
Di(2-ethylhexyl) Phthalate
1.4 µg/L 23%
of the EPA limit 6 µg/L
 1/6 SYR4 2015–2017
Monochloroacetic Acid
0.5200 µg/L
No EPA limit set
 1/40 SYR4 2012–2019
93 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, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHNSON, MARK
Phone
985-898-4700
Email
[email protected]

Frequently asked questions about City of Covington Water Supply

Is City of Covington Water Supply tap water safe to drink?

EPA monitoring detected 18 contaminants in City of Covington Water Supply'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 Covington Water Supply's water?

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

How many people does City of Covington Water Supply serve?

City of Covington Water Supply reports serving 16,185 people in Louisiana, per its EPA record.

Has City of Covington Water Supply had any water quality violations?

The EPA has 57 violations on file for City of Covington Water Supply, of which 42 are health-based (a contaminant limit or required treatment was breached) and 3 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.