Union, NC
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 Union in North Carolina · Population: 244,975
TRI sites such as Surteco N.a. Inc.; Pro-Tops Inc.; Consolidated Metco Inc; SDWIS systems such as UNION COUNTY WATER SYSTEM; WINGATE, TOWN OF; MARSHVILLE, TOWN OF anchor Union, NC's EPA extract. Derived burden score 43/100 (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 Union include UNION COUNTY WATER SYSTEM; WINGATE, TOWN OF; MARSHVILLE, TOWN OF, while Surteco N.a. Inc. leads reported TRI pounds among local Form R filers. AQS median AQI 41 / peak 97 in 2024.
Burden score 43/100 (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 Union -- 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 Union, NC: EPA TRI 2023 reporting year
Same facilities, both years
+13.4%
18 facilities that filed in 2022 and 2023
Whole inventory
+0.9%
45.7 thousand lb → 46.1 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Union, NC's total reported releases rose from 36.2 thousand lb in 2022 to 41.0 thousand lb in 2023, based on EPA TRI filings.
- Union, NC's off-site transfers rose from 9.7 thousand lb in 2022 to 17.8 thousand lb in 2023, based on EPA TRI filings.
- Union, NC's water releases fell from 34 lb in 2022 to 23 lb in 2023, based on EPA TRI filings.
- Union, NC's air releases fell from 26.4 thousand lb in 2022 to 23.2 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 | 212 (87%) | 33 | 0 | 97 |
| 2023 | 201 (82%) | 43 | 1 | 101 |
| 2022 | 218 (89%) | 26 | 0 | 100 |
| 2021 | 209 (86%) | 34 | 1 | 101 |
| 2020 | 242 (100%) | 0 | 0 | 50 |
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 North Carolina, see the EPA's AirNow.gov.
Water Systems (6)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| UNION COUNTY WATER SYSTEM | 169,685 | 10 |
| WINGATE, TOWN OF | 3,950 | 3 |
| MARSHVILLE, TOWN OF | 3,163 | 1 |
| JAARS, INC | 625 | 0 |
| GLENCROFT S/D | 380 | 1 |
| WESTWOOD MHP | 56 | 0 |
TRI Facilities (22)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Surteco N.a. Inc. | 373.0K lbs |
| 2 | Pro-Tops Inc. | 31.6K lbs |
| 3 | Consolidated Metco Inc | 30.0K lbs |
| 4 | Pilgrim's Pride Corp Marshville Processing Facility | 21.0K lbs |
| 5 | Radiator Specialty Co | 10.0K lbs |
| 6 | Tyson Farms Inc | 9.6K lbs |
| 7 | Goulston Technologies | 8.6K lbs |
| 8 | Pro-Tops Inc | 5.0K lbs |
| 9 | Ati Specialty Materials - Bakers Site | 3.9K lbs |
| 10 | Ati Specialty Materials - Monroe Plant | 2.6K lbs |
| 11 | Circor Pumps N.a. LLC | 224 lbs |
| 12 | Conn-Selmer Inc Ludwig Facility | 127 lbs |
| 13 | Yale Security Inc.,norton Door Controls | 106 lbs |
| 14 | Edwards Wood Products Inc. | 29 lbs |
| 15 | Concrete Supply Co - Matthews | 4 lbs |
| 16 | Indian Trail Concrete Plant | 1 lbs |
| 17 | Bluedot-Readi-Mix-Monroe (plant #105) | 0 lbs |
| 18 | Sws Concrete-Monroe Plant | 0 lbs |
| 19 | Sws Concrete-Stallings Plant | 0 lbs |
| 20 | Concrete Supply Co Llc-Monroe | 0 lbs |
| 21 | Pilgrim's Pride Corp Wingate Feed Mill | 0 lbs |
| 22 | Consolidated Metco Inc. | 0 lbs |
Cities in Union (6)
Frequently Asked Questions
What is the environmental risk level in Union, North Carolina? ▼
Are there Superfund sites in Union? ▼
How many toxic release facilities are in Union? ▼
What is the air quality in Union? ▼
Is the drinking water safe in Union? ▼
What environmental agencies cover Union? ▼
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.