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Caroline, MD

Moderate Risk (32/100)

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 Caroline in Maryland · Population: 33,406

TRI sites such as Reliance Treated Wood; Valpac Inc.; Schuster Concrete Ready Mix Llc-Hobbs Rd; SDWIS systems such as TOWN OF DENTON; TOWN OF FEDERALSBURG; TOWN OF GREENSBORO anchor Caroline, MD's EPA extract. Derived burden score 32/100 (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 Caroline include TOWN OF PRESTON; BENEDICTINE SCHOOL; HILLTOP TRAILER PARK, while Reliance Treated Wood leads reported TRI pounds among local Form R filers. No AQS county monitors report here.

Burden score 32/100 (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 Caroline -- 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 Caroline, MD: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

+306.6%

2 facilities that filed in 2022 and 2023

Whole inventory

-84.4%

2.3 thousand lb → 366 lb, every facility that filed

These two measures point in opposite directions. Releases from the facilities present in both years rose, while the inventory-wide total fell. The difference is which facilities filed, not a different estimate of the same plants.

Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.

  • Caroline, MD's total reported releases rose from 90 lb in 2022 to 366 lb in 2023, based on EPA TRI filings.
  • Caroline, MD's air releases rose from 90 lb in 2022 to 366 lb in 2023, based on EPA TRI filings.
  • Caroline, MD's chemicals reported rose from 2 in 2022 to 3 in 2023, based on EPA TRI filings.
County population (Census ACS)
33,406
TRI Facilities
3
Water Systems
13
Superfund Sites
0
Total Releases
131.3K lbs

Water Systems (13)

System System pop (SDWIS) Violations
TOWN OF DENTON 4,500 0
TOWN OF FEDERALSBURG 2,450 0
TOWN OF GREENSBORO 1,878 0
TOWN OF RIDGELY 1,600 0
TOWN OF PRESTON 750 3
BENEDICTINE SCHOOL 300 2
JONESTOWN WATER SYSTEM 150 0
DOVE ESTATES 111 0
HILLTOP TRAILER PARK 65 1
HOLLY COVE HARBOR MOBILE HOME PARK 45 4
LIBERTY MOBILE HOME PARK 40 5
TOWER COURT MOBILE HOME PARK 40 1
TAYLORS MOBILE HOME PARK 27 1

TRI Facilities (3)

# Facility Total Releases
1 Reliance Treated Wood 129.2K lbs
2 Valpac Inc. 2.1K lbs
3 Schuster Concrete Ready Mix Llc-Hobbs Rd 0 lbs

Cities in Caroline (5)

Federalsburg
2 facilities · 3 water
Denton
1 facilities · 4 water
Ridgely
0 facilities · 3 water
Greensboro
0 facilities · 2 water
Preston
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Caroline, Maryland? ▼
Caroline, MD has an environmental risk score of 32/100 (Moderate Risk), based on 3 TRI facilities, 0 Superfund sites, and 13 water systems on record. 7 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Caroline? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Caroline, MD in the EPA database.
How many toxic release facilities are in Caroline? ▼
Caroline, MD has 3 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 131.3K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Caroline? ▼
Air quality monitoring data (EPA AQS) is not available for Caroline, MD. This may indicate no EPA monitoring stations are located in the county. For regional air quality data, see the state environmental profile or visit EPA's AirNow.gov.
Is the drinking water safe in Caroline? ▼
Caroline, MD has 13 EPA-regulated water systems. 7 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 Caroline? ▼
Environmental compliance in Caroline, 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 Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

Read our methodology - how this data is sourced, computed, and verified.

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