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Frederick, VA

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 Frederick in Virginia · Population: 93,355

TRI sites such as Kingspan Insulation LLC; Darling Ingredients Inc-Winchester Facility; Evolve Stone LLC; SDWIS systems such as STEPHENS CITY, TOWN OF; MIDDLETOWN, TOWN OF; NPL sites such as Rhinehart Tire Fire Dump anchor Frederick, VA'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.

Kingspan Insulation LLC; Darling Ingredients Inc-Winchester Facility; Evolve Stone LLC are among the largest Form R filers reporting in Frederick; no SDWIS system here carries an active health-based flag. AQS median AQI 41 / peak 102 in 2024.

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 Frederick -- 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 Frederick, VA: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

+12.4%

10 facilities that filed in 2022 and 2023

Whole inventory

+12.4%

102.3 thousand lb → 115.0 thousand lb, every facility that filed

  • Frederick, VA's total reported releases rose from 102.3 thousand lb in 2022 to 115.0 thousand lb in 2023, based on EPA TRI filings.
  • Frederick, VA's air releases rose from 54.1 thousand lb in 2022 to 77.5 thousand lb in 2023, based on EPA TRI filings.
  • Frederick, VA's off-site transfers fell from 34.4 thousand lb in 2022 to 21.8 thousand lb in 2023, based on EPA TRI filings.
  • Frederick, VA's land releases rose from 13.8 thousand lb in 2022 to 15.7 thousand lb in 2023, based on EPA TRI filings.
County population (Census ACS)
93,355
TRI Facilities
14
Water Systems
2
Superfund Sites
1
Total Releases
507.0K 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 264 (74%) 90 1 102
2023 240 (66%) 114 5 185
2022 234 (70%) 100 0 89
2021 222 (61%) 140 0 98
2020 249 (82%) 55 0 81
2024 Good Air Quality: 74% of days
Unhealthy days: 1
Median AQI: 41

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 Virginia, see the EPA's AirNow.gov.

Water Systems (2)

System System pop (SDWIS) Violations
STEPHENS CITY, TOWN OF 2,700 0
MIDDLETOWN, TOWN OF 1,390 0

TRI Facilities (14)

# Facility Total Releases
1 Kingspan Insulation LLC 223.0K lbs
2 Darling Ingredients Inc-Winchester Facility 98.4K lbs
3 Evolve Stone LLC 82.8K lbs
4 Fisher Diagnostics a Div of Fisher Scientific Co 45.4K lbs
5 Hp Hood LLC 37.5K lbs
6 Qg Printing II Corp 17.2K lbs
7 Trex - Virginia Manufacturing Operations 2.2K lbs
8 O-N Minerals (chemstone) Winchester Lime Plant 619 lbs
9 Virginia Concrete - Stephens City 25 lbs
10 Apg Mid-Atlantic - Winchester 0 lbs
11 Titan Virginia Ready-Mix Llc-Clear Brook Plant 0 lbs
12 Quarles Petroleum Inc. Winchester Bulk Plant 0 lbs
13 Concrete Pipe & Precast- Winchester 0 lbs
14 8TH Ave Food & Provisions 0 lbs

Superfund Sites (1)

Site Name Status HRS Score
Rhinehart Tire Fire Dump Deleted NPL Site 30.57

Cities in Frederick (5)

Winchester
11 facilities · 3 water
Clear Brook
2 facilities · 0 water
Middletown
1 facilities · 1 water
Stephens City
1 facilities · 1 water
Frederick County
0 facilities · 0 water

Frequently Asked Questions

What is the environmental risk level in Frederick, Virginia? ▼
Frederick, VA has an environmental risk score of 32/100 (Moderate Risk), based on 14 TRI facilities, 1 Superfund sites, and 2 water systems on record. No water systems have current health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Frederick? ▼
Yes, Frederick, VA has 1 Superfund site on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in Frederick? ▼
Frederick, VA has 14 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 507.0K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Frederick? ▼
In 2024, Frederick, VA recorded a median AQI of 41 and a peak AQI of 102. 74% 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 Frederick? ▼
Frederick, VA has 2 EPA-regulated water systems. No health-based violations are currently on record. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Frederick? ▼
Environmental compliance in Frederick, Virginia is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Virginia 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