St. Tammany Parish, LA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for St. Tammany Parish in Louisiana
St. Tammany Parish, LA is tracked across three EPA datasets covering 5 Toxics Release Inventory (TRI) facilities, 70 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 36/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 172.2K lbs of reported toxic releases under EPCRA Section 313, while 28 water systems carry an active health-based violation in the SDWIS record. No EPA Air Quality System monitors currently report data for this county.
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Water Systems (70)
| System | Population | Violations |
|---|---|---|
| ST TAM PARISH- BEDICO -FAUBOURG-COQUILLE | 18,372 | 0 |
| ST TAM PARISH - BRIARWOOD TERRACE | 17,536 | 0 |
| MANDEVILLE WATER SUPPLY | 13,000 | 0 |
| UTILITIES INC - NORTH PARK WATER SUPPLY | 11,298 | 0 |
| BAYOU LIBERTY WATER ASSOCIATION | 10,791 | 0 |
| ST TAM PARISH - CROSS GATES SD | 7,791 | 3 |
| UTILITIES INC - KINGSPOINT SUBDIVISION | 6,351 | 0 |
| LEE ROAD WATER CORPORATION | 6,048 | 0 |
| BEAU CHENE WATER SYSTEM | 4,650 | 0 |
| UTILITIES INC - HAMMOND HEIGHTS | 4,281 | 1 |
| ABITA SPRINGS WATER SYSTEM | 3,693 | 1 |
| TOWN OF PEARL RIVER | 3,333 | 0 |
| UTILITIES INC - LAKE VILLAGE SD | 2,724 | 0 |
| UTILITIES INC- WHITEHALL/ HEAD OF ISLAND | 2,676 | 1 |
| ST TAM PARISH PINELAND PARK SUBD | 2,500 | 0 |
| UTILITIES INC - FRENCH SETTLEMENT | 2,313 | 1 |
| UTILITIES INC - GREEN BRIER WATER SUPPLY | 2,250 | 2 |
| UTILITIES INC - HUNTWYCK VILLAGE | 2,088 | 0 |
| FOLSOM WATER SUPPLY | 1,992 | 3 |
| UTILITIES INC- SPRINGFIELD AREA | 1,914 | 0 |
| ST TAM PARISH -NORTHRIDGE ESTATES | 1,653 | 0 |
| UTILITIES INC - MAGNOLIA FOREST SUBD | 1,635 | 1 |
| UTILITIES INC - WOODRIDGE SUBDIVISION | 1,590 | 0 |
| UTILITIES INC - QUAIL RIDGE SUBDIVISION | 1,563 | 0 |
| UTILITIES INC - VELMA | 1,302 | 1 |
| TCHEFUNCTA CLUB ESTATES | 1,245 | 3 |
| COUNTRY PINES NORTH SUBDIVISION WS | 936 | 0 |
| ST TAM PARISH - RIVER OAKS | 930 | 0 |
| VILLAGES OF BOCAGE- MADISONVILLE | 894 | 0 |
| MADISONVILLE WATER SUPPLY | 871 | 0 |
| SUN WATER SUPPLY | 726 | 17 |
| ADVENTURES RV RESORT | 635 | 7 |
| UTILITIES INC - OAKMONT SUBD | 612 | 0 |
| ST TAM PARISH - ABITA LAKES | 609 | 0 |
| PINE CREST TRAILER PARK | 600 | 0 |
| COUNTRY PINES SOUTH SUBDIVISION WS | 570 | 0 |
| MARINA DEL RAY WATER SYSTEM | 500 | 2 |
| ST TAM PARISH - ALTON | 499 | 0 |
| ST TAM PARISH - NORTHLAKE BEHAVIORAL | 480 | 2 |
| OAKLAWN TRACE | 480 | 0 |
| JOYCE WATER SUPPLY | 474 | 67 |
| SPILLWAY ESTATES WATER SYSTEM | 342 | 81 |
| TAYLOR WATER SYSTEM | 246 | 0 |
| SOUTHERN MANOR M H P | 246 | 0 |
| MANGANOS MOBILE HOME PARK | 234 | 0 |
| ST TAM PARISH- BEN THOMAS RD | 220 | 1 |
| ST TAM PARISH SALVATION MANOR ST JOE | 171 | 0 |
| UTILITIES INC - BEAU VILLAGE | 165 | 1 |
| PARADISE POINT WATER SYSTEM | 159 | 32 |
| LACOMBE NURSING CENTRE | 150 | 0 |
| SOUTH CALCASIEU ESTATES SUBDIVISION W S | 144 | 0 |
| UTILITIES INC - PINE HEAVEN | 144 | 0 |
| ST JOSEPH ABBEY | 127 | 5 |
| ST TAM PARISH - TAMANEND | 125 | 0 |
| UTILITIES INC - OAKRIDGE | 123 | 0 |
| LAKEVIEW ESTATES SUBD WS | 120 | 0 |
| UTILITIES INC -BANKSTON | 120 | 0 |
| CREEK PLACE APARTMENTS | 100 | 4 |
| INDIAN HILLS TRAILER PARK | 100 | 2 |
| ST TAM PARISH - LAKE HILLS VILLAGE | 88 | 4 |
| ST TAM PARISH-MADISONVILLE WOODS | 87 | 0 |
| UTILITIES INC - NORTH FOLSOM HILLS | 81 | 1 |
| MT MORIAH WATER SYSTEM | 78 | 0 |
| OZONE PINE SUBDIVISION | 75 | 14 |
| ST TAM PARISH - ST GERTRUDE | 72 | 0 |
| PEARL PLANTATION TOWNHSE | 60 | 15 |
| LEWISBURG ESTATES | 60 | 6 |
| MADISONVILLE ON THE LAKE | 51 | 9 |
| ALEXANDER MILNE HOME FOR WOMEN | 42 | 0 |
| RICHLAND HEIGHTS SUBD WATER SYSTEM | 30 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Arcosa Marine Products Inc Plt 1038 | 92.0K lbs |
| 2 | US Army National Guard - Camp Villere Range(s) | 80.1K lbs |
| 3 | Pavestone - New Orleans la Plant | 0 lbs |
| 4 | Pebble Technology International | 0 lbs |
| 5 | Cmc Steel Fabricators Inc DBA Cmc Capitol Steel-Slidell | 0 lbs |
Cities in St. Tammany Parish (4)
Frequently Asked Questions
What is the environmental risk level in St. Tammany Parish, Louisiana? ▼
Are there Superfund sites in St. Tammany Parish? ▼
How many toxic release facilities are in St. Tammany Parish? ▼
What is the air quality in St. Tammany Parish? ▼
Is the drinking water safe in St. Tammany Parish? ▼
What environmental agencies cover St. Tammany Parish? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.