Mclennan, TX
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 Mclennan in Texas · Population: 263,608
TRI sites such as Sandy Creek Energy Station; Sanderson Farms LLC; Howmet Fastening Systems Waco; SDWIS systems such as CITY OF HEWITT; CITY OF ROBINSON; CITY OF BELLMEAD anchor Mclennan, TX's EPA extract. Derived burden score 66/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
EPCRA disclosures in Mclennan total 11.7M lbs; health-flagged SDWIS rows include CITY OF ROBINSON; CITY OF BELLMEAD; CITY OF WOODWAY, while Sandy Creek Energy Station leads TRI pounds. AQS median AQI 53 / peak 133 in 2024.
Largest TRI sites in the extract: Sandy Creek Energy Station; Sanderson Farms LLC; Howmet Fastening Systems Waco. Named SDWIS systems: CITY OF HEWITT; CITY OF ROBINSON; CITY OF BELLMEAD. Burden score 66/100 (High Risk) is the only weighted composite here; tables reproduce EPA disclosure history, not a current-safety verdict.
Release-over-release change
What changed for Mclennan, TX: EPA TRI 2023 reporting year
Same facilities, both years
-4.2%
30 facilities that filed in 2022 and 2023
Whole inventory
-4.3%
2.0 million lb → 1.9 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Mclennan, TX's total reported releases fell from 2.0 million lb in 2022 to 1.9 million lb in 2023, based on EPA TRI filings.
- Mclennan, TX's off-site transfers rose from 159.5 thousand lb in 2022 to 246.3 thousand lb in 2023, based on EPA TRI filings.
- Mclennan, TX's air releases fell from 141.8 thousand lb in 2022 to 116.6 thousand lb in 2023, based on EPA TRI filings.
- Mclennan, TX's water releases fell from 438.5 thousand lb in 2022 to 387.2 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 | 126 (35%) | 234 | 5 | 133 |
| 2023 | 169 (46%) | 188 | 8 | 129 |
| 2022 | 209 (57%) | 155 | 0 | 100 |
| 2021 | 280 (77%) | 84 | 0 | 100 |
| 2020 | 294 (80%) | 72 | 0 | 97 |
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 Texas, see the EPA's AirNow.gov.
Water Systems (38)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF HEWITT | 16,978 | 0 |
| CITY OF ROBINSON | 11,900 | 2 |
| CITY OF BELLMEAD | 10,664 | 4 |
| CITY OF WOODWAY | 9,383 | 1 |
| CITY OF LACY LAKEVIEW | 7,275 | 0 |
| CITY OF MCGREGOR | 6,037 | 1 |
| CROSS COUNTRY WSC | 3,939 | 0 |
| GHOLSON WSC | 3,903 | 0 |
| CHALK BLUFF WSC | 3,852 | 0 |
| MCLENNAN COUNTY WCID 2 | 3,100 | 0 |
| TEXAS STATE TECHNICAL COLLEGE - WACO | 3,100 | 2 |
| WEST BRAZOS WSC | 2,880 | 0 |
| SPRING VALLEY WSC | 2,700 | 0 |
| CITY OF WEST | 2,597 | 2 |
| BOLD SPRINGS WSC | 2,301 | 0 |
| LEVI WSC | 2,298 | 0 |
| EOL WSC | 2,195 | 180 |
| NORTH BOSQUE WSC | 2,061 | 0 |
| LEROY TOURS GERALD WSC | 1,845 | 89 |
| CITY OF LORENA | 1,776 | 8 |
| AXTELL WSC | 1,320 | 134 |
| EAST CRAWFORD WSC | 972 | 0 |
| HILLTOP WSC | 972 | 0 |
| CITY OF CRAWFORD | 950 | 9 |
| CENTRAL BOSQUE WSC | 879 | 0 |
| CHATT WSC | 846 | 0 |
| WINDSOR WATER | 732 | 0 |
| COTTONWOOD WSC | 720 | 0 |
| HIGHLAND PARK WSC | 468 | 0 |
| C S COMMUNITY WSC | 432 | 0 |
| MOORES WATER SYSTEM | 285 | 67 |
| BOSQUE BASIN WSC | 225 | 0 |
| PATRICK WSC | 220 | 0 |
| HERITAGE MINISTRIES | 165 | 1 |
| CEDAR RIDGE DEEP WELL WATER SYSTEM | 132 | 0 |
| SOUTH BOSQUE WSC | 120 | 0 |
| COLETO CREEK MOBILE HOME PARK | 120 | 2 |
| BRAZOS RIVER AUTHORITY GRANGER LAKE REGI | 0 | 0 |
TRI Facilities (37)
Cities in Mclennan (15)
Frequently Asked Questions
What is the environmental risk level in Mclennan, Texas? ▼
Are there Superfund sites in Mclennan? ▼
How many toxic release facilities are in Mclennan? ▼
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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.