Laporte, IN
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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Laporte in Indiana · Population: 112,141
TRI sites such as Nipsco Michigan City Generating Station; Precoat Metals; Monosol - Laporte Plant; SDWIS systems such as LAPORTE WATER WORKS; WESTVILLE CORRECTIONAL FACILITY; WALKERTON LIGHT & WATER; NPL sites such as Cam-Or Inc.; Fisher-Calo; Waste, Inc., Landfill anchor Laporte, IN's EPA extract. Derived burden score 71/100 (High 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 Laporte include LAPORTE WATER WORKS; WESTVILLE CORRECTIONAL FACILITY; WESTVILLE WATER DEPARTMENT, while Nipsco Michigan City Generating Station leads reported TRI pounds among local Form R filers. AQS median AQI 41 / peak 115 in 2024.
Burden score 71/100 (High 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 Laporte -- 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 Laporte, IN: EPA TRI 2023 reporting year
Same facilities, both years
-14.4%
19 facilities that filed in 2022 and 2023
Whole inventory
-16.1%
929.6 thousand lb → 780.1 thousand lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Laporte, IN's total reported releases fell from 858.6 thousand lb in 2022 to 735.3 thousand lb in 2023, based on EPA TRI filings.
- Laporte, IN's water releases fell from 10.9 thousand lb in 2022 to 3.6 thousand lb in 2023, based on EPA TRI filings.
- Laporte, IN's air releases fell from 80.0 thousand lb in 2022 to 65.4 thousand lb in 2023, based on EPA TRI filings.
- Laporte, IN's off-site transfers fell from 767.6 thousand lb in 2022 to 666.3 thousand lb 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 | 257 (70%) | 107 | 2 | 115 |
| 2023 | 277 (76%) | 76 | 12 | 133 |
| 2022 | 302 (83%) | 60 | 3 | 133 |
| 2021 | 282 (77%) | 78 | 5 | 143 |
| 2020 | 291 (80%) | 68 | 6 | 154 |
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 Indiana, see the EPA's AirNow.gov.
Water Systems (18)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| LAPORTE WATER WORKS | 22,197 | 4 |
| WESTVILLE CORRECTIONAL FACILITY | 2,850 | 1 |
| WALKERTON LIGHT & WATER | 2,262 | 0 |
| LONG BEACH WATER DEPARTMENT | 2,050 | 0 |
| NORTH LIBERTY WATER WORKS | 1,896 | 0 |
| NEW CARLISLE WATER WORKS | 1,861 | 0 |
| KINGSFORD HEIGHTS WATER | 1,800 | 0 |
| WESTVILLE WATER DEPARTMENT | 1,800 | 2 |
| NEW DURHAM ESTATES | 1,099 | 0 |
| WANATAH WATER UTILITY | 1,050 | 0 |
| DUNELAND BEACH ASSOCIATION | 300 | 2 |
| KINGSBURY UTILITY CORPORATION | 240 | 0 |
| MALLARDS POINTE WATER SYSTEM | 150 | 0 |
| ANOKA ACRES MOBILE HOME PARK | 127 | 2 |
| COLONIAL MOBILE COURT | 99 | 2 |
| SHARE FOUNDATION | 86 | 0 |
| HOLSTON RENTALS | 60 | 0 |
| SACRED HEART APOSTOLIC SCHOOL | 46 | 1 |
TRI Facilities (25)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Nipsco Michigan City Generating Station | 3.0M lbs |
| 2 | Precoat Metals | 498.4K lbs |
| 3 | Monosol - Laporte Plant | 225.5K lbs |
| 4 | Triplex Plating Co Inc | 117.9K lbs |
| 5 | American Renolit Corp | 115.8K lbs |
| 6 | Phm Brands LLC | 72.5K lbs |
| 7 | Hearthside Food Solutions LLC | 71.0K lbs |
| 8 | Building Materials Manufacturing LLC | 17.5K lbs |
| 9 | Howmet Castings & Services Inc. | 12.2K lbs |
| 10 | Alexander Chemical Corp | 8.3K lbs |
| 11 | Wm Technologies LLC | 7.2K lbs |
| 12 | Prairie Packaging LLC | 5.4K lbs |
| 13 | Aero Metals Inc | 2.2K lbs |
| 14 | New York Blower Co | 1.3K lbs |
| 15 | Accurate Castings Inc | 587 lbs |
| 16 | Diamond Midwest | 75 lbs |
| 17 | Accurate Castings Inc Kingsbury Castings Div | 71 lbs |
| 18 | Hitachi Global Air Power US LLC | 20 lbs |
| 19 | Dwyer Instruments Inc | 2 lbs |
| 20 | Opta - Kingsbury | 0 lbs |
| 21 | Fas-Pak Inc. | 0 lbs |
| 22 | Messer LLC | 0 lbs |
| 23 | Fas-Pak Inc | 0 lbs |
| 24 | Shell Catalysts & Technologies LP | 0 lbs |
| 25 | Sullivan Palatek | 0 lbs |
Superfund Sites (3)
| Site Name | Status | HRS Score |
|---|---|---|
| Cam-Or Inc. | NPL Site | 58.91 |
| Fisher-Calo | NPL Site | 52.05 |
| Waste, Inc., Landfill | Deleted NPL Site | 50.63 |
Cities in Laporte (8)
Frequently Asked Questions
What is the environmental risk level in Laporte, Indiana? ▼
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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.