EPA Air · by county
Air-emissions sources in Montgomery County, Maryland
- 1,332Facilities
Every stationary source in Montgomery 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 Montgomery 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 Montgomery 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.
- 2026 — inspections 12
- 2025 — inspections 15
- 2024 — inspections 47
- 2023 — inspections 45
- 2022 — inspections 41
- 2021 — inspections 31
- 2020 — inspections 31
- 2019 — inspections 34
- 2018 — inspections 49
- 2017 — inspections 66
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| MONTGOMERY SCRAP | Minor source | No |
| MONTGOMERY SHELL | Minor source | No |
| MONTGOMERY TIRE SERVICE | Minor source | No |
| MONTGOMERY VILLAGE LIBERTY | Minor source | No |
| MONTGOMERY VILLAGE MIDDLE | Minor source | No |
| MONTGOMERY VILLAGE, 19110 | Minor source | No |
| MONTROSE AUTOMOTIVE | Minor source | No |
| MONTROSE AVENUE, 10411 | Minor source | No |
| MONTROSE AVENUE, 10505 | Minor source | No |
| MONTROSE AVENUE, 10631 | Minor source | No |
| MONTROSE BAPTIST CHURCH | Minor source | No |
| MONTROSE ELEMENTARY SCHOOL | Minor source | No |
| MONTROSE MOTORS | Minor source | No |
| MONTROSE ROAD, 5901 | Minor source | No |
| MONTROSE ROAD, 6101 | Minor source | No |
| MONTROSE ROAD, 6721 | Minor source | No |
| MT. PISGAH ROAD, 9700-9710 | Minor source | No |
| MT. PISGAH ROAD, 9727 | Minor source | No |
| MT. PISGAH ROAD, 9737 | Minor source | No |
| MUDDY BRANCH ROAD, 409 | Minor source | No |
| NATIONAL AUTO BODY | Minor source | No |
| NATIONAL AUTO BODY | Minor source | No |
| NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | Major source | No |
| NATIONAL INSTITUTES OF HEALTH | Major source | No |
| NATIONAL LUTHERAN HOME FOR AGED | Minor source | No |
| NATIONAL OCEANIC ATMOSPHERIC ADMIN | Minor source | No |
| NATIONWIDE COLLISION EXPERTS | Minor source | No |
| NAVAL SUPPORT ACTIVITY BETHESDA | Major source | No |
| NAVAL SUPPORT WARFARE CENTER (NSWC) - CARDEROCK DIVISION | Synthetic minor source | No |
| NAZARIAN AUTO REPAIR | Minor source | No |
| NAZARIAN MOTORS | Minor source | No |
| NETWORK PRINTING | Minor source | No |
| NEUTRON PRODUCTS | Minor source | No |
| NEW AGAIN AUTO REPAIR | Minor source | No |
| NEW EUROPEAN WOODWORK SHOP | Minor source | No |
| NEW HAMPSHIRE AVENUE, 10100 | Minor source | No |
| NEW HAMPSHIRE AVENUE, 10110 | Minor source | No |
| NEW HAMPSHIRE AVENUE, 10120 | Minor source | No |
| NEW HAMPSHIRE ESTATES ELEMENTARY | Minor source | No |
| NEWDALE ROAD, 3935 | Minor source | No |
| NEWDALE ROAD, 3943 | Minor source | No |
| NEWPORT MIDDLE SCHOOL | Minor source | No |
| NEWTOWN AUTO BODY | Minor source | No |
| NICHOLSON LANE, 5650 | Minor source | No |
| NIH ANIMAL CENTER | Synthetic minor source | No |
| NIH FEDERAL CREDIT UNION | Minor source | No |
| NIMA | Minor source | No |
| NIMITZ ROAD, 3400 | Minor source | No |
| NORBECK COUNTRY CLUB. | Minor source | No |
| NORFOLK AVENUE, 7920 | Minor source | No |
| NORMANDY CLEANERS | Minor source | No |
| NORTH BETHESDA MEDICAL CENTER | Minor source | No |
| NORTH BETHESDA MIDDLE SCHOOL | Minor source | No |
| NORTH CHEVY CHASE ELEMENTARY SCHOOL | Minor source | No |
| NORTH LAKE CENTER | Minor source | No |
| NORTHHAMPTON DRIVE, 666 | Minor source | No |
| NORTHHAMPTON DRIVE, 864 | Minor source | No |
| NORTHLAKE DRY CLEANERS | Minor source | No |
| NORTHWOOD HIGH SCHOOL | Minor source | No |
| O'BOYLE TANK LINES | Minor source | No |
| OAK LEAF DRIVE, 11215 | Minor source | No |
| OAK LEAF DRIVE, 11235 | Minor source | No |
| OAKLAND TERRACE ELEMENTARY SCHOOL | Minor source | No |
| OAKS LANDFILL (GAS TO ENERGY) | Synthetic minor source | No |
| OCEANIC | Minor source | No |
| OHR KODESH CONGREGATION | Minor source | No |
| OLD COLUMBIA PIKE, 11700 | Minor source | No |
| OLD GEORGETOWN ROAD, 7735 | Minor source | No |
| OLD GEORGETOWN ROAD, 7979 | Minor source | No |
| OLDEST TO NEWEST AUTO BODY | Minor source | No |
| OLDEST TO NEWEST AUTO BODY-ROCKVILLE | Minor source | No |
| OLNEY CLEANERS | Minor source | No |
| OLNEY ELEMENTARY SCHOOL | Minor source | No |
| OPPORTUNITY CONCRETE - TEMP PLANT | Minor source | No |
| ORKIN EXTERMINATING | Minor source | No |
| OTSUKA PHARMACEUTICAL CO., LTD. | Minor source | No |
| OUR LADY OF MERCY SCHOOL | Minor source | No |
| OUR LADY OF THE WOODS ACADEMY | Minor source | No |
| OURISMAN COLLISION CENTER | No | |
| OURISMAN VW & MAZDA OF ROCKVILLE | Minor source | No |
| OURISMAN'S ROCKMONT CHEVROLET | Minor source | No |
| PAGE, W.T. ELEMENTARY SCHOOL | Minor source | No |
| PAINT BRANCH HIGH SCHOOL | Minor source | No |
| PARK AVENUE, NORTH 4550 | Minor source | No |
| PARK AVENUE, NORTH 4601 | Minor source | No |
| PARK AVENUE, NORTH 4615 | Minor source | No |
| PARK AVENUE, NORTH 4620 | Minor source | No |
| PARK AVENUE, SOUTH 4450 | Minor source | No |
| PARK CLEANERS | Minor source | No |
| PARK STREET ELEMENTARY SCHOOL | Minor source | No |
| PARKLAND MECHANICAL SERVICE | Minor source | No |
| PARKLAND MIDDLE SCHOOL | Minor source | No |
| PARKLAWN CEMETERY | Minor source | No |
| PARKWAY CLEANERS & DYERS | Minor source | No |
| PARKWOOD ELEMENTARY SCHOOL | Minor source | No |
| PEARY, ROBERT E. CENTER | Minor source | No |
| PENNY, J. C. - GAITHERSBURG | Minor source | No |
| PENNY, J.C. - ROCKVILLE | Minor source | No |
| PENNY, J.C. - SILVER SPRING | Minor source | No |
| PEPCO MAINTENANCE FACILITY | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.