Tap WaterIndex

← Louisiana

Tap water quality report

St Tam Parish - Northlake Behavioral

EPA monitoring tested this supplier for 82 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
16
detected
480
people served
44
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.

44
health-based violations
61
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2025-09-25
TT Health-based Unaddressed 2025-09-25
TT Health-based Unaddressed 2025-09-25
TT Health-based Resolved 2024-01-03
TT Health-based Resolved 2024-01-03
TT Health-based Resolved 2024-01-03
TT Health-based Resolved 2024-01-03
TT Health-based Resolved 2024-01-03
MCL Health-based Archived 2011-10-01 → 2011-10-31
MCL Health-based Archived 2011-10-01 → 2011-10-31

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
Lead
9 µg/L 60%
of the EPA limit 15 µg/L
worst single sample: 56 µg/L
41/57 SYR4 2013–2019
Chloroform
22.96 µg/L
No EPA limit set
worst single sample: 26.6 µg/L
14/14 SYR4 2013–2019
Dichloroacetic Acid
13.905 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
14/14 SYR4 2013–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2025
TTHM
29.17 µg/L 36%
of the EPA limit 80 µg/L
worst single sample: 33.2 µg/L
14/14 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
18.725 µg/L 31%
of the EPA limit 60 µg/L
worst single sample: 19.7 µg/L
14/14 SYR4 2013–2019
Trichloroacetic Acid
3.71 µg/L
No EPA limit set
worst single sample: 4.1 µg/L
14/14 SYR4 2013–2019
Bromodichloromethane
6.12 µg/L
No EPA limit set
worst single sample: 6.6 µg/L
13/14 SYR4 2013–2019
Dibromochloromethane
1.965 µg/L
No EPA limit set
worst single sample: 2 µg/L
8/14 SYR4 2013–2019
Dibromoacetic Acid
0.9475 µg/L
No EPA limit set
worst single sample: 0.9500 µg/L
6/14 SYR4 2013–2019
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 6/6 SYR4 2013–2019
Copper
260 µg/L 20%
of the EPA limit 1300 µg/L
worst single sample: 300 µg/L
5/57 SYR4 2013–2019
Nitrate-Nitrite
27 µg/L 0.3%
of the EPA limit 10000 µg/L
 4/40 SYR4 2012–2019
Combined Radium (-226 And -228)
1.1965 pCi/L 24%
of the EPA limit 5 pCi/L
worst single sample: 1.22 pCi/L
2/5 SYR4 2015–2019
Di(2-ethylhexyl) Phthalate
0.6295 µg/L 10%
of the EPA limit 6 µg/L
worst single sample: 0.6300 µg/L
2/4 SYR4 2013–2016
Toluene
0.3100 µg/L 0%
of the EPA limit 1000 µg/L
 1/6 SYR4 2013–2019
66 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TISSUE, CHRISTOPHER
Phone
985-893-1717
Email
[email protected]

Frequently asked questions about St Tam Parish - Northlake Behavioral

Is St Tam Parish - Northlake Behavioral tap water safe to drink?

EPA monitoring detected 16 contaminants in St Tam Parish - Northlake Behavioral'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 St Tam Parish - Northlake Behavioral's water?

EPA monitoring detected Lead, Chloroform, Dichloroacetic Acid, Lead, TTHM, and others. The full list with the level and data source for each is above.

How many people does St Tam Parish - Northlake Behavioral serve?

St Tam Parish - Northlake Behavioral reports serving 480 people in Louisiana, per its EPA record.

Has St Tam Parish - Northlake Behavioral had any water quality violations?

The EPA has 61 violations on file for St Tam Parish - Northlake Behavioral, of which 44 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.