Is St Tam Parish -Northridge Estates Tap Water Safe? Quality Report

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2005-07-01 → 2005-07-31
MCL	Health-based	Archived	2005-07-01 → 2005-07-31
MCL	Health-based	Archived	2005-07-01 → 2005-07-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	1800 µg/L 138% of the EPA limit, in the worst sample — 1300 µg/L	32/62	SYR4	2014–2019
Lead	198 µg/L 1320% of the EPA limit, in the worst sample — 15 µg/L	29/62	SYR4	2014–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	12/12	LCR	2023
Chloroform	1.4 µg/L No EPA limit set	7/14	SYR4	2013–2019
TTHM	1.4 µg/L 1.7% of the EPA limit 80 µg/L	7/14	SYR4	2013–2019
Dichloroacetic Acid	1.2 µg/L No EPA limit set	6/14	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	1.7 µg/L 2.8% of the EPA limit 60 µg/L	6/14	SYR4	2013–2019
Trichloroacetic Acid	0.7300 µg/L No EPA limit set	2/14	SYR4	2013–2019
Arsenic	1 µg/L 10% of the EPA limit 10 µg/L	1/2	SYR4	2017
Chromium	10 µg/L 10% of the EPA limit 100 µg/L	1/2	SYR4	2017
Combined Radium (-226 And -228)	0.9430 pCi/L 19% of the EPA limit 5 pCi/L	1/2	SYR4	2017
Gross Beta Particle Activity	2.06 pCi/L No EPA limit set	1/2	SYR4	2017

67 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: TISSUE, CHRISTOPHER
Phone: 985-893-1717
Email: cptissue@stpgov.org

Frequently asked questions about St Tam Parish -Northridge Estates

Is St Tam Parish -Northridge Estates tap water safe to drink?

EPA monitoring detected 12 contaminants in St Tam Parish -Northridge Estates'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 -Northridge Estates's water?

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

How many people does St Tam Parish -Northridge Estates serve?

St Tam Parish -Northridge Estates reports serving 1,653 people in Louisiana, per its EPA record.

Has St Tam Parish -Northridge Estates had any water quality violations?

The EPA has 3 violations on file for St Tam Parish -Northridge Estates, of which 3 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.