TRI Facilities
64
EPCRA Section 313 reporters
2023 EPA TRI data 64 facilities 209 water systems
Delaware Environmental Profile
According to the U.S. Environmental Protection Agency's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List, this is Delaware's (DE) full public environmental-compliance record - toxic releases, drinking-water systems, and Superfund sites in one place.
DE regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
Clean Water Act, NPDES (water-system health violations)
50 records
- RCRA · Subtitle C
RCRA Subtitle C (Superfund-site proxy)
26 records
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
Water Systems
209
SDWIS regulated
Superfund Sites
26
17 active NPL
Total Releases
34.2M lbs
TRI cumulative disclosure
Compliance Snapshot - DE
Sites with no recorded health violations 81.7%
Sites with at least one open violation 18.3%
Delaware consolidates three federal EPA datasets into one statewide environmental profile: 64 Toxics Release Inventory (TRI) facilities reporting under EPCRA Section 313, 209 community water systems regulated under the Safe Drinking Water Act, and 26 sites on the Superfund National Priorities List.
TRI facilities in DE have cumulatively disclosed 34.2M lbs of toxic chemical releases, while SDWIS records show 158 total violations across the state's regulated water systems, of which 50 systems carry an active health-based violation (MCL exceedance or treatment-technique failure). Activity clusters in counties such as New Castle, Kent, Sussex, which account for the highest combined facility, water-system, and Superfund presence.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
64
Water Systems
209
Superfund Sites
26
Total Violations
158
Total Releases
34.2M lbs
Health Violations
50
water systems
Largest Polluters
View all →| # | Facility | Total Releases |
|---|---|---|
| 1 | Delaware City Refinery | 27.7M lbs |
| 2 | Mountaire Farms of Delaware Inc | 2.6M lbs |
| 3 | Perdue Foods LLC - Georgetown Processing Plant | 2.2M lbs |
| 4 | Allen Harim Foods LLC - Harbeson | 434.5K lbs |
| 5 | Sun Chemical | 274.1K lbs |
| 6 | Croda Inc | 246.3K lbs |
| 7 | Air Products & Chemicals | 104.7K lbs |
| 8 | Dupont Electronic Materials Cmp LLC B2 B3 B8 | 93.4K lbs |
| 9 | V&s Delaware Galvanizing LLC | 71.7K lbs |
| 10 | Simmons Bridgeville | 60.3K lbs |
| 11 | Edge Moor/hay Road Energy Centers | 58.9K lbs |
| 12 | Air Liquide Advanced Separations | 55.3K lbs |
| 13 | Justin Tanks LLC | 42.8K lbs |
| 14 | Nexpera - Red Lion Plant | 26.5K lbs |
| 15 | Dentsply Sirona - Milford Site | 25.8K lbs |
| 16 | Handytube LLC | 23.4K lbs |
| 17 | Indian River Generating Station | 19.7K lbs |
| 18 | Clarios LLC | 19.3K lbs |
| 19 | Noramco | 18.9K lbs |
| 20 | Hanover Foods Corp | 18.3K lbs |
Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| FOREST PARK | 25 | 36 |
| CHERRY CREEK VALLEY | 78 | 13 |
| EVERGREEN POST ACUTE | 256 | 11 |
| HOME TOWN VILLAGE OF COOL BRANCH | 654 | 8 |
| MILLSBORO WATER DEPARTMENT | 8,568 | 6 |
| BETHANY CREST LLC | 115 | 6 |
| SELBYVILLE WATER DEPARTMENT | 3,502 | 5 |
| ARTESIAN WATER COMPANY | 231,114 | 4 |
| REHOBOTH PUMP DISTRICT (TUI) | 81,417 | 4 |
| TALL PINES RESORT COMMUNITY SYS1 | 538 | 4 |
| WHISPERING PINES MOBILE HOME PARK | 325 | 4 |
| FISH HOOK MOBILE HOME PARK | 72 | 3 |
| LAUREL WATER DEPARTMENT | 3,984 | 3 |
| ARTESIAN SOUTHERN SUSSEX REGIONAL | 18,015 | 3 |
| LAKE FOREST ESTATES | 20 | 2 |
| BROADKILN BEACH WATER COMPANY (TUI) | 3,171 | 2 |
| BAYSHORE MOBILE HOME PARK | 533 | 2 |
| CEDAR VILLAGE LLC | 600 | 2 |
| CAREY ESTATES, LLC | 312 | 2 |
| GREENWOOD WATER DEPARTMENT | 973 | 2 |
Cities with Water Issues
New Castle
Pop: -
Newark
Pop: -
Wilmington
Pop: -
Dover
Pop: -
Georgetown
Pop: -
Lewes
Pop: -
Milford
Pop: -
Millsboro
Pop: -
Seaford
Pop: -
Selbyville
Pop: -
Laurel
Pop: -
Smyrna
Pop: -
Felton
Pop: -
Ocean View
Pop: -
Rehoboth Beach
Pop: -
Greenwood
Pop: -
Kenton
Pop: -
Magnolia
Pop: -
Clarksville
Pop: -
Blades
Pop: -
Superfund Sites (26)
Counties (3 total)
| County | Facilities |
|---|---|
| New Castle | 34 |
| Kent | 10 |
| Sussex | 20 |
Largest Cities
Bear
Pop: -
2 facilities · 10 water systems
Claymont
Pop: -
2 facilities · 0 water systems
New Castle
Pop: -
9 facilities · 2 water systems
Delaware City
Pop: -
1 facilities · 0 water systems
Middletown
Pop: -
3 facilities · 4 water systems
Newark
Pop: -
7 facilities · 31 water systems
Townsend
Pop: -
1 facilities · 0 water systems
Wilmington
Pop: -
6 facilities · 4 water systems
Newport
Pop: -
3 facilities · 0 water systems
Dover Afb
Pop: -
1 facilities · 0 water systems
Dover
Pop: -
2 facilities · 56 water systems
Bridgeville
Pop: -
4 facilities · 1 water systems
Camden
Pop: -
1 facilities · 2 water systems
Clayton
Pop: -
2 facilities · 0 water systems
Cheswold
Pop: -
1 facilities · 0 water systems
Delmar
Pop: -
1 facilities · 1 water systems
Frankford
Pop: -
1 facilities · 2 water systems
Georgetown
Pop: -
2 facilities · 6 water systems
Harbeson
Pop: -
1 facilities · 0 water systems
Lewes
Pop: -
1 facilities · 6 water systems
Frequently Asked Questions
How many polluting facilities are in Delaware? ▼
Delaware has 64 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 34.2M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Delaware have Superfund sites? ▼
Yes, Delaware has 26 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
Is the water safe in Delaware? ▼
Delaware has 209 EPA-regulated water systems. 50 water 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 data is available for Delaware? ▼
PlainEnviro provides three categories of EPA environmental data for Delaware: Toxic Release Inventory (TRI) data covering 64 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 209 water systems, and Superfund National Priorities List (NPL) data for 26 contaminated sites.
How does Delaware compare to other states environmentally? ▼
Delaware has 64 TRI facilities with 34.2M lbs in total releases, 26 Superfund sites, and 158 water system violations on record. State-level environmental comparisons depend on many factors including industrial activity, population, and geographic size. Source: EPA TRI, SDWIS, and Superfund NPL databases.
Explore More Data for Delaware
TRI Facilities in Delaware →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Delaware →
Community water systems and their violation records
Air Quality in Delaware →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Delaware: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Delaware's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 64 TRI facilities reporting in Delaware for the largest reported releases near a specific county. View facilities
- 50 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Delaware compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial
According to the U.S. Environmental Protection Agency, this state profile is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities, the Safe Drinking Water Information System, and the Superfund National Priorities List, compiled since federal reporting began under the Emergency Planning and Community Right-to-Know Act in October 1986; see our methodology for full source citations and refresh cadence.
Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. State environmental figures are computed directly from EPA data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.