Carroll, MD

Moderate Risk (38/100)

A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.

Environmental data for Carroll in Maryland · Population: 174,318

Carroll, MD is tracked across three EPA datasets covering 8 Toxics Release Inventory (TRI) facilities, 15 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 38/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.

Industrial disclosures inside the county total 86.4K lbs of reported toxic releases under EPCRA Section 313, while 8 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 42 and a peak AQI of 93 in 2024, with 77% of observed days rated "Good" (0–50).

All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.

Population
174,318
TRI Facilities
8
Water Systems
15
Superfund Sites
0
Total Releases
86.4K lbs

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
2024 Good Air Quality: 77% of days
Median AQI: 42

Source: EPA Air Quality System (AQS) Annual AQI by County 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 Population 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 20
GAITHER MANOR APARTMENTS 450 1
TODD VILLAGE MOBILE HOME PARK 180 0
BARK HILL 163 0
PLEASANT VALLEY 139 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 (5)

Finksburg
Pop: -
1 facilities · 2 water
Hampstead
Pop: -
2 facilities · 1 water
Taneytown
Pop: -
2 facilities · 1 water
Union Bridge
Pop: -
1 facilities · 1 water
Westminster
Pop: -
2 facilities · 6 water

Frequently Asked Questions

What is the environmental risk level in Carroll, Maryland?
Carroll, MD has an environmental risk score of 38/100 (Moderate Risk), based on 8 TRI facilities, 0 Superfund sites, and 15 water systems on record. 8 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Carroll?
No Superfund National Priorities List (NPL) sites are currently registered in Carroll, MD in the EPA database.
How many toxic release facilities are in Carroll?
Carroll, MD has 8 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 86.4K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Carroll?
In 2024, Carroll, MD recorded a median AQI of 42 and a peak AQI of 93. 77% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Carroll?
Carroll, MD has 15 EPA-regulated water systems. 8 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Carroll?
Environmental compliance in Carroll, Maryland is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Maryland state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

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.

Related

Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial