Carroll, MD
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 Carroll in Maryland · Population: 174,318
TRI sites such as Heidelberg Materials US Cement LLC; Black & Decker (us) Inc; Maryland Paving Inc; SDWIS systems such as CITY OF WESTMINSTER; FREEDOM DISTRICT; CITY OF TANEYTOWN anchor Carroll, MD's EPA extract. Derived burden score 38/100 (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 Carroll include CITY OF WESTMINSTER; FREEDOM DISTRICT; WAKEFIELD VALLEY, while Heidelberg Materials US Cement LLC leads reported TRI pounds among local Form R filers. AQS median AQI 42 / peak 93 in 2024.
Burden score 38/100 (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 Carroll -- 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 Carroll, MD: EPA TRI 2023 reporting year
Same facilities, both years
+22.9%
8 facilities that filed in 2022 and 2023
Whole inventory
+22.9%
9.1 thousand lb → 11.2 thousand lb, every facility that filed
- Carroll, MD's total reported releases rose from 9.1 thousand lb in 2022 to 11.2 thousand lb in 2023, based on EPA TRI filings.
- Carroll, MD's air releases rose from 9.1 thousand lb in 2022 to 11.2 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 | 189 (77%) | 55 | 0 | 93 |
| 2023 | 183 (75%) | 57 | 4 | 143 |
| 2022 | 210 (86%) | 32 | 1 | 112 |
| 2021 | 208 (86%) | 34 | 1 | 112 |
| 2020 | 225 (93%) | 17 | 0 | 84 |
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 Maryland, see the EPA's AirNow.gov.
Water Systems (15)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF WESTMINSTER | 35,256 | 4 |
| FREEDOM DISTRICT | 24,867 | 7 |
| CITY OF TANEYTOWN | 6,750 | 0 |
| TOWN OF HAMPSTEAD | 6,600 | 0 |
| TOWN OF MANCHESTER | 4,954 | 0 |
| WAKEFIELD VALLEY | 2,436 | 1 |
| TOWN OF NEW WINDSOR | 1,732 | 0 |
| SPRINGFIELD HOSPITAL DISTRIBUTION | 1,500 | 22 |
| GAITHER MANOR APARTMENTS | 450 | 1 |
| TODD VILLAGE MOBILE HOME PARK | 180 | 0 |
| BARK HILL BIBLE CHURCH | 163 | 0 |
| PLEASANT VALLEY | 150 | 1 |
| ANNES MHP | 110 | 0 |
| RESERVOIR TRAILER PARK | 79 | 1 |
| TEBBSTON ON MAGOTHY | 52 | 7 |
TRI Facilities (8)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Heidelberg Materials US Cement LLC | 85.7K lbs |
| 2 | Black & Decker (us) Inc | 621 lbs |
| 3 | Maryland Paving Inc | 0 lbs |
| 4 | Flowserve Fsg | 0 lbs |
| 5 | Griffith Energy Services Inc Spring Mill | 0 lbs |
| 6 | Griffith Energy Services Inc Bare | 0 lbs |
| 7 | Evapco Inc-Taneytown | 0 lbs |
| 8 | Fuchs N.a. | 0 lbs |
Cities in Carroll (9)
Frequently Asked Questions
What is the environmental risk level in Carroll, Maryland? ▼
Are there Superfund sites in Carroll? ▼
How many toxic release facilities are in Carroll? ▼
What is the air quality in Carroll? ▼
Is the drinking water safe in Carroll? ▼
What environmental agencies cover Carroll? ▼
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.