Tangipahoa Parish, LA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Tangipahoa Parish in Louisiana · Population: 135,218
TRI sites such as Sanderson Farms LLC; Smitty's Supply Inc; East Side Jersey Dairy Inc. DBA Brown's Dairy; SDWIS systems such as TANGIPAHOA PARISH WATER DISTRICT; CITY OF HAMMOND WATER SYSTEM; CITY OF PONTCHATOULA WATER SYSTEM; NPL sites such as Delatte Metals anchor Tangipahoa Parish, LA's EPA extract. Derived burden score 46/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Tangipahoa Parish include TANGIPAHOA PARISH WATER DISTRICT; CITY OF HAMMOND WATER SYSTEM; TOWN OF INDEPENDENCE WATER SYSTEM, while Sanderson Farms LLC leads reported TRI pounds among local Form R filers. AQS median AQI 47 / peak 77 in 2024.
Burden score 46/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Tangipahoa Parish -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Tangipahoa Parish, LA: EPA TRI 2023 reporting year
Same facilities, both years
+9.2%
6 facilities that filed in 2022 and 2023
Whole inventory
+9.4%
762.0 thousand lb → 833.9 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Tangipahoa Parish, LA's total reported releases rose from 762.0 thousand lb in 2022 to 832.2 thousand lb in 2023, based on EPA TRI filings.
- Tangipahoa Parish, LA's off-site transfers rose from 2.7 thousand lb in 2022 to 4.2 thousand lb in 2023, based on EPA TRI filings.
- Tangipahoa Parish, LA's water releases rose from 744.7 thousand lb in 2022 to 814.1 thousand lb in 2023, based on EPA TRI filings.
- Tangipahoa Parish, LA's chemicals reported fell from 13 in 2022 to 12 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 67 (53%) | 60 | 0 | 77 |
| 2023 | 81 (65%) | 43 | 0 | 71 |
| 2022 | 89 (72%) | 35 | 0 | 97 |
| 2021 | 81 (74%) | 29 | 0 | 65 |
| 2020 | 88 (73%) | 33 | 0 | 68 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Louisiana, see the EPA's AirNow.gov.
Water Systems (28)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| TANGIPAHOA PARISH WATER DISTRICT | 75,873 | 3 |
| CITY OF HAMMOND WATER SYSTEM | 21,135 | 2 |
| CITY OF PONTCHATOULA WATER SYSTEM | 6,657 | 0 |
| TOWN OF AMITE WATER SYSTEM | 4,300 | 0 |
| TANGIPAHOA (SECOND WARD) WATER DISTRICT | 4,112 | 0 |
| TOWN OF INDEPENDENCE WATER SYSTEM | 3,052 | 4 |
| TOWN OF KENTWOOD WATER SYSTEM | 2,205 | 16 |
| TOWN OF ROSELAND WATER SYSTEM | 1,521 | 21 |
| WESTVIEW WATER WORKS | 1,134 | 7 |
| VILLAGE OF TICKFAW WATER SYSTEM | 764 | 0 |
| VILLAGE OF TANGIPAHOA WATER SYSTEM | 748 | 13 |
| ADVENTURES RV RESORT | 635 | 7 |
| PONDEROSA RANCHES SUBDIVISION | 579 | 15 |
| THE CHARLESTON MHC WATER SYSTEM | 567 | 0 |
| LA CASA LLC | 540 | 4 |
| VILLAGE GUTHRIE SUBDIVISION | 405 | 2 |
| THE SALLIER MHC WATER SYSTEM | 400 | 0 |
| CENTRAL PARK SUBDIVISION | 342 | 5 |
| FLUKER CHAPEL WATER WORKS | 296 | 4 |
| VILLAGE OF MONTPELIER WATER SUPPLY | 290 | 0 |
| FOREST GLEN SD | 270 | 0 |
| ST CHARLES MOBILE HOME PARK | 175 | 5 |
| WEST YELLOW WATER MH PARK | 174 | 1 |
| THE RESERVE MHC WATER SYSTEM | 159 | 0 |
| CYPRESS TRACE MANUFACTURED HOUSING COMM. | 140 | 3 |
| WHITE OAKS MANUFACTURED HOUSING COMM. | 138 | 6 |
| PINE TRAILER PARK | 60 | 14 |
| BLUE CRYSTAL MHP | 60 | 1 |
TRI Facilities (7)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Sanderson Farms LLC | 3.5M lbs |
| 2 | Smitty's Supply Inc | 16.5K lbs |
| 3 | East Side Jersey Dairy Inc. DBA Brown's Dairy | 13.2K lbs |
| 4 | Tanner Industries Inc. | 1.8K lbs |
| 5 | Kentwood Brick & Tile LLC | 500 lbs |
| 6 | Lei Inc. | 0 lbs |
| 7 | Purina Animal Nutrition LLC - Arcola | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Delatte Metals | Deleted NPL Site | 50.00 |
Cities in Tangipahoa Parish (12)
Frequently Asked Questions
What is the environmental risk level in Tangipahoa Parish, Louisiana? ▼
Are there Superfund sites in Tangipahoa Parish? ▼
How many toxic release facilities are in Tangipahoa Parish? ▼
What is the air quality in Tangipahoa Parish? ▼
Is the drinking water safe in Tangipahoa Parish? ▼
What environmental agencies cover Tangipahoa 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.