Howard, MD
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 Howard in Maryland · Population: 333,916
Howard, MD is tracked across three EPA datasets covering 8 Toxics Release Inventory (TRI) facilities, 13 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 36/100 (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 65.5K lbs of reported toxic releases under EPCRA Section 313, while 7 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 32 and a peak AQI of 75 in 2024, with 84% 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.
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 | 307 (84%) | 59 | 0 | 75 |
| 2023 | 268 (73%) | 93 | 1 | 188 |
| 2022 | 290 (79%) | 75 | 0 | 70 |
| 2021 | 284 (78%) | 81 | 0 | 83 |
| 2020 | 297 (82%) | 67 | 0 | 71 |
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 (13)
| System | Population | Violations |
|---|---|---|
| HOWARD COUNTY D.P.W. DISTRIBUTION | 286,158 | 0 |
| HOLIDAY MOBILE ESTATES, INC. | 900 | 1 |
| LUTHERAN VILLAGE AT MILLER'S GRANT | 315 | 1 |
| CEDAR MOBILE HOME PARK | 300 | 8 |
| PINE CREST MOBILE HOME PARK | 208 | 0 |
| TRIPLE J MHP | 200 | 0 |
| ROCKBROOK VILLAGE MOBILE HOME PARK | 150 | 3 |
| WHITE PLAINS 1 MHP/SMITTYS | 100 | 0 |
| IRISH CREEK MHP | 90 | 8 |
| LAKEVIEW MHP LLC | 76 | 2 |
| SULLIVANS MOBILE HOME PARK COMMUNITY | 70 | 3 |
| WHITE PLAINS 2 MHP/JACK BLAIR | 70 | 0 |
| TAYLORSVILLE MHC, LLC | 38 | 0 |
TRI Facilities (8)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Maryland & Virginia Laurel LLC | 52.6K lbs |
| 2 | Precoat Metals | 8.6K lbs |
| 3 | Elite Spice Inc. | 2.6K lbs |
| 4 | Tate Access Floors Inc. | 751 lbs |
| 5 | Elite Spice Inc. | 515 lbs |
| 6 | Jessup Ready Mix Concrete | 447 lbs |
| 7 | Concrete Pipe & Precast LLC - Jessup Plant | 1 lbs |
| 8 | Schuster Concrete Ready Mix Llc-Guilford Rd | 0 lbs |
Cities in Howard (2)
Frequently Asked Questions
What is the environmental risk level in Howard, Maryland? ▼
Are there Superfund sites in Howard? ▼
How many toxic release facilities are in Howard? ▼
What is the air quality in Howard? ▼
Is the drinking water safe in Howard? ▼
What environmental agencies cover Howard? ▼
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.