District Of Columbia, DC
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 District Of Columbia in District of Columbia · Population: 672,079
TRI sites such as US Army Corps of Engineers McMillan WTP Washington Aqueduc; Joint Base Anacostia Bolling Ranges; Fort Totten Ready Mix Concrete; SDWIS systems such as D.C. WATER AND SEWER AUTHORITY; JOINT BASE ANACOSTIA - BOLLING; Wingate Elementary School (New) - BIE; NPL sites such as Washington Navy Yard anchor District Of Columbia, DC's EPA extract. Derived burden score 42/100 (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 District Of Columbia include D.C. WATER AND SEWER AUTHORITY; JOINT BASE ANACOSTIA - BOLLING; Fort Wingate Community, while US Army Corps of Engineers McMillan WTP Washington Aqueduc leads reported TRI pounds among local Form R filers. AQS median AQI 45 / peak 133 in 2024.
Burden score 42/100 (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 District Of Columbia -- 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 District Of Columbia, DC: EPA TRI 2023 reporting year
Same facilities, both years
+24.9%
11 facilities that filed in 2022 and 2023
Whole inventory
+24.9%
14.0 thousand lb → 17.5 thousand lb, every facility that filed
- District Of Columbia, DC's total reported releases rose from 14.0 thousand lb in 2022 to 17.5 thousand lb in 2023, based on EPA TRI filings.
- District Of Columbia, DC's off-site transfers rose from 418 lb in 2022 to 2.6 thousand lb in 2023, based on EPA TRI filings.
- District Of Columbia, DC's water releases fell from 4.4 thousand lb in 2022 to 1.8 thousand lb in 2023, based on EPA TRI filings.
- District Of Columbia, DC's land releases rose from 9.0 thousand lb in 2022 to 12.8 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 | 233 (64%) | 129 | 4 | 133 |
| 2023 | 189 (52%) | 164 | 9 | 196 |
| 2022 | 198 (54%) | 163 | 4 | 128 |
| 2021 | 172 (47%) | 185 | 7 | 153 |
| 2020 | 248 (68%) | 117 | 0 | 171 |
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 District of Columbia, see the EPA's AirNow.gov.
Water Systems (10)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| D.C. WATER AND SEWER AUTHORITY | 632,323 | 5 |
| JOINT BASE ANACOSTIA - BOLLING | 19,312 | 12 |
| Wingate Elementary School (New) - BIE | 800 | 0 |
| Fort Wingate Community | 550 | 1 |
| Eastern Navajo Agency - BIE | 455 | 1 |
| BIE CHEMAWA INDIAN SCHOOL | 320 | 4 |
| Chi Chil Tah Jones Ranch Community School - BIE | 137 | 0 |
| Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE | 120 | 7 |
| Hanaadli Huerfano Boarding School - BIE | 65 | 0 |
| WASHINGTON AQUEDUCT DIVISION. | 0 | 0 |
TRI Facilities (12)
| # | Facility | Total Releases |
|---|---|---|
| 1 | US Army Corps of Engineers McMillan WTP Washington Aqueduc | 73.2K lbs |
| 2 | Joint Base Anacostia Bolling Ranges | 6.0K lbs |
| 3 | Fort Totten Ready Mix Concrete | 4.9K lbs |
| 4 | US Army Corps of Engineers Dalecarlia WTP | 3.9K lbs |
| 5 | US Department of the Treasury-Bureau of Engraving & Printing | 1.7K lbs |
| 6 | Fort Myer Construction Plant 2 | 1.1K lbs |
| 7 | US Secret Service | 835 lbs |
| 8 | Fort Myer Construction Plant 1 | 410 lbs |
| 9 | US Naval Observatory | 26 lbs |
| 10 | Superior Concrete Materials Inc. - Washington | 1 lbs |
| 11 | Virginia Concrete-Southwest Dc Plant | 0 lbs |
| 12 | Virginia Concrete Queens Chapel Plant | 0 lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Washington Navy Yard | NPL Site | 48.57 |
Cities in District Of Columbia (1)
Frequently Asked Questions
What is the environmental risk level in District Of Columbia, District of Columbia? ▼
Are there Superfund sites in District Of Columbia? ▼
How many toxic release facilities are in District Of Columbia? ▼
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What environmental agencies cover District Of Columbia? ▼
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.