EPA Air · by county
Air-emissions sources in Howard County, Maryland
- 234Facilities
Every stationary source in Howard County, Maryland that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Howard County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Howard County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2025 — inspections 6
- 2024 — inspections 17
- 2023 — inspections 23
- 2022 — inspections 18
- 2021 — inspections 16
- 2020 — inspections 9
- 2019 — inspections 16
- 2018 — inspections 24
- 2017 — inspections 24
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| HARPER'S CHOICE MIDDLE SCHOOL | Minor source | No |
| HARRIS TEETER STORE #382 | Synthetic minor source | No |
| HERTZ-PENSKE TRUCK LEASING | Minor source | No |
| HESS GAS STATION | Minor source | No |
| HIGH'S | Minor source | No |
| HIGH'S CITGO | Minor source | No |
| HIGH'S GAS STATION | Minor source | No |
| HIGH'S GAS STATION | Minor source | No |
| HIGH'S STORE | Minor source | No |
| HIGH'S STORE GAS STATION | Minor source | No |
| HOFFMAN, HOWARD G. INC. | Minor source | No |
| HOLLIFIELD STATION ELEMENTARY SCHOOL | Minor source | No |
| HOWARD CO. BD. EDUC. | Minor source | No |
| HOWARD COMMUNITY COLLEGE | Minor source | No |
| HOWARD COUNTY COURTHOUSE | Minor source | No |
| HOWARD COUNTY DEPT OF PUBLIC WORKS | Minor source | No |
| HOWARD COUNTY GATEWAY SCHOOL | Minor source | No |
| HOWARD COUNTY GENERAL HOSPITAL | Minor source | No |
| HOWARD COUNTY OFFICES | Minor source | No |
| HOWARD COUNTY SCHOOLS-MAINTENANCE | Minor source | No |
| HOWARD CTY. EQUIP. STORAGE & REPAIR | Minor source | No |
| HOWARD CTY. VEHICLE MAINT. - ELKRID | Minor source | No |
| HOWARD HIGH SCHOOL | Minor source | No |
| HOWARD VOCATIONAL TECH. CENTER | Minor source | No |
| INTERCHECKS | Minor source | No |
| INWOOD DRY CLEANERS | Minor source | No |
| ITE AUTO AND FLEET SERVICE | Minor source | No |
| J & J AUTO BODY | Minor source | No |
| JACK OF ARTS | Minor source | No |
| JEFFERS HILL ELEMENTARY SCHOOL | Minor source | No |
| JOE BELL'S BODY SHOP | Minor source | No |
| JOHNS HOPKINS UNIVERSITY - APL | Synthetic minor source | Yes |
| JOSEPH'S REFINISHING & REUPHOLSTERY | Minor source | No |
| KEY PRESS | Minor source | No |
| KING'S CONTRIVANCE CLEANERS | Minor source | No |
| LAUREL SAND AND GRAVEL, INC. - ELKRIDGE | Synthetic minor source | No |
| LIBERTY GAS STATION | Minor source | No |
| LISBON ELEMENTARY (OLD) | Minor source | No |
| LISBON ELEMENTARY SCHOOL | Minor source | No |
| LITTLE PATUXENT WWTP/BIO GRO | Minor source | No |
| LONG GATE SUNOCO | Minor source | No |
| LOUISIANA-PACIFIC CORPORATION | Minor source | No |
| LUCAS BROTHERS | Minor source | No |
| LYNDWOOD CLEANERS | Minor source | No |
| MAJOR MOTORS NISSAN | Minor source | No |
| MANHEIM'S BALTIMORE-WASHINGTON AUTO EXCHANGE | No | |
| MANOR WOODS ELEMENTARY SCHOOL | Minor source | No |
| MARYLAND & VIRGINIA MILK PRODUCERS | Major source | No |
| MARYLAND MOBILE TRAILER SERVICE | Minor source | No |
| MARYLAND SCHOOL FOR THE DEAF | Minor source | No |
| MAYER BROTHERS | Minor source | No |
| MAYFIELD WOODS MIDDLE SCHOOL | Minor source | No |
| MICROELECTRONICS RESEARCH LABORATORY | Minor source | No |
| MILES BODY SHOP | Minor source | No |
| MILLER BROTHERS CHEVROLET | Minor source | No |
| MORNINGSIDE RUG COMPANY | Minor source | No |
| MT. HEBRON HIGH SCHOOL | Minor source | No |
| NEW CINGULAR WIRELESS PCS, LLC DBA AT&T MOBILITY | Synthetic minor source | No |
| NEW CUT LANDFILL | Minor source | No |
| NORMANDY CROWN | Minor source | No |
| OAK TREE FURNITURE | Minor source | No |
| OAKLAND MILLS CLEANERS | Minor source | No |
| OAKLAND MILLS HIGH SCHOOL | Minor source | No |
| OAKLAND MILLS MIDDLE SCHOOL | Minor source | No |
| ORINCO COFFEE & TEA | Minor source | No |
| OSIRIS THERAPEUTICS | Minor source | No |
| PHELPS LUCK ELEMENTARY SCHOOL | Minor source | No |
| PHOTO EFFECTS | Minor source | No |
| POINTERS RUN ELEMENTARY SCHOOL | Minor source | No |
| PRECOAT METALS DIVISION OF SEQUA CORPORATION | Synthetic minor source | No |
| PROFESSIONAL TURF CORPORATION | Minor source | No |
| REDDING RENTAL CENTER | Minor source | No |
| REMED - 5901 STEVENS FOREST ROAD | Minor source | No |
| REMED - GENERAL ELECTRIC SITE | Minor source | No |
| RIVER HILL CLEANERS | Minor source | No |
| ROCKLAND ART CENTER | Minor source | No |
| ROCKVILLE FUEL AND FEED | Minor source | No |
| ROUSE COMPANY | Minor source | No |
| ROYAL FARM STORE | Minor source | No |
| ROYAL FARM STORE | Minor source | No |
| RYDER TRUCK RENTAL - CORRIDOR ROAD | Minor source | No |
| SAIC/IDEA GROUP | Minor source | No |
| SAINT LOUIS SCHOOL | Minor source | No |
| SHELL | Minor source | No |
| SHELL | Minor source | No |
| SHELL | Minor source | No |
| SHELL - 4239 MONTGOMERY ROAD | Minor source | No |
| SHELL GAS STATION | Minor source | No |
| SHELL GAS STATION | Minor source | No |
| SHELL GAS STATION | Minor source | No |
| SIBARCO - FREDERICK ROAD | Minor source | No |
| SOUTHERN STATES COOP | Minor source | No |
| SPRINT COMMUICATIONS | Synthetic minor source | No |
| ST. AUGUSTINE CHURCH | Minor source | No |
| ST. JOHNS LANE ELEMENTARY SCHOOL | Minor source | No |
| STANDARD MEDICAL IMAGING | Minor source | No |
| STATE HIGHWAY GAS STATION | Minor source | No |
| STATE POLICE BARRACKS, WATERLOO | Minor source | No |
| STRAIGHT LINE AUTO BODY | Minor source | No |
| SUNOCO | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.