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 |
|---|---|---|
| GEN VEC | Minor source | No |
| GEN. CONFERENCE SEVENTH DAY ADV'S | Minor source | No |
| GEN. SERVICES ADMIN. - 7550 WISC. A | Minor source | No |
| GENERAL CONFERENCE CORP. OF SEVENTH DAY ADVENTIST | Synthetic minor source | No |
| GENERAL ELECTRIC, ROCKVILLE | Minor source | No |
| GENETICS THERAPY | Minor source | No |
| GENEX CORPORATION | Minor source | No |
| GENIE'S ART WORKSHOP | Minor source | No |
| GEORGETOWN HILL ELEMENTARY SCHOOL | Minor source | No |
| GEORGETOWN PREP SCHOOL | Minor source | No |
| GEORGIA AVENUE, 14000 | Minor source | No |
| GEORGIA AVENUE, 8121 | Minor source | No |
| GEORGIA AVENUE, 8701 | Minor source | No |
| GEORGIA AVENUE, 8730 | Minor source | No |
| GEORGIA AVENUE, 8750 | Minor source | No |
| GEORGIAN FOREST ELEMENTARY SCHOOL | Minor source | No |
| GERMAN SCHOOL | Minor source | No |
| GERMANTOWN ELEMENTARY SCHOOL | Minor source | No |
| GERMANTOWN POST OFFICE | Minor source | No |
| GETTY SERVICE STATION | Minor source | No |
| GI TC MONTGOMERY, LLC | Minor source | No |
| GIANT FOOD | Minor source | No |
| GIANT FOOD - CHEVY CHASE | Minor source | No |
| GIANT FOOD - ROCKVILLE PIKE | Minor source | No |
| GIANT FOOD-13781 CONN. AVENUE | Minor source | No |
| GIANT FUEL #152 | Minor source | No |
| GIANT GAS | Minor source | No |
| GILBERT PLACE/BARRON STREET | Minor source | No |
| GILL'S AUTOBODY LLC | Minor source | No |
| GIMBEL BROTHERS-SAKS 5TH AVENUE | Minor source | No |
| GIRAND STREET, 414 | Minor source | No |
| GLAXOSMITHKLINE USA | Minor source | No |
| GLAXOSMITHKLINE USA | Synthetic minor source | No |
| GLAXOSMITHKLINE USA | Minor source | No |
| GLAXOSMITHKLINE USA | Minor source | No |
| GLEN AVENUE, 9732 | Minor source | No |
| GLEN ECHO AMUSEMENT PK. | Minor source | No |
| GLEN HAVEN ELEMENTARY SCHOOL | Minor source | No |
| GLENALLEN AVENUE, 2217 | Minor source | No |
| GLENMONT SUNOCO SERVICE CENTER | Minor source | No |
| GLENMORE WHEATON POLICE STATION | Minor source | No |
| GOV'T EMPLOYEES LIFE INS. | Minor source | No |
| GRACE EPISCOPAL CHURCH | Minor source | No |
| GRACE EPISCOPAL SCHOOL | Minor source | No |
| GRAND BELMANOR CONDO | Minor source | No |
| GRAND UNION STORE, SILVER SPRING | Minor source | No |
| GREENWOOD AVENUE, 8514 | Minor source | No |
| GREENWOOD ELEMENTARY SCHOOL | Minor source | No |
| GROSVENOR ELEMENTARY SCHOOL | Minor source | No |
| GROSVENOR PARK CONDO | Minor source | No |
| GROSVENOR PLACE, 10401 | Minor source | No |
| GROVE CLEANERS | Minor source | No |
| GRT WASHINGTON JEWISH FOUNDATION | Minor source | No |
| GSA FEDERAL RESEARCH CENTER AT WHITE OAK | Major source | No |
| GSA FEDERAL RESEARCH CENTER AT WHITE OAK | Minor source | No |
| GUDE LANDFILL GAS TO ENERGY | Minor source | No |
| GUDE PICCARD PARTNERS | Minor source | No |
| HAMPSHIRE WEST COURT, 1501 | Minor source | No |
| HAN'S AUTO CENTER | Minor source | No |
| HANAGAN'S AUTO BODY | Minor source | No |
| HAPIS T/A GAITHERSBURG CITGO | Minor source | No |
| HARMONY HILLS ELEMENTARY SCHOOL | Minor source | No |
| HARTZ, ANNE STORE | Minor source | No |
| HARVEY'S QUALITY CLEANERS | Minor source | No |
| HATTON, TOM PONTIAC | Minor source | No |
| HEBREW ACADEMY OF GREATER WASHINGTON | Minor source | No |
| HECHT COMPANY | Minor source | No |
| HERNER & COMPANY | Minor source | No |
| HERSHEY'S CLEANERS | Minor source | No |
| HERSON'S HONDA AUTO SHOP | Minor source | No |
| HERSON'S HONDA BODY SHOP | Minor source | No |
| HEWLETT-PACKARD | Minor source | No |
| HIGHLAND ELEMENTARY | Minor source | No |
| HIGHLAND VIEW ELEMENTARY SCHOOL | Minor source | No |
| HILDAROSE AVENUE, 2100 | Minor source | No |
| HILLANDALE CITGO | Minor source | No |
| HINES-RINALDI FUNERAL HOME | Minor source | No |
| HOF SERVICE COMPANY | Minor source | No |
| HOLIDAY INN - CHEVY CHASE | Minor source | No |
| HOLTON ARMS SCHOOL | Minor source | No |
| HOLY CROSS ELEMENTARY SCHOOL | Minor source | No |
| HOLY CROSS HOSPITAL OF SILVER SPRING | Synthetic minor source | No |
| HOLY CROSS INST. OF HUMAN RESOURCES | Minor source | No |
| HOLY REDEEMER ROMAN CATHOLIC CHURCH | Minor source | No |
| HOMECREST ROAD, 14508 | Minor source | No |
| HOOVER, HERBERT MIDDLE SCHOOL | Minor source | No |
| HOPKINS, JOHNS ACADEMIC RESEARCH | Minor source | No |
| HOTTEL, HARVEY W., INC. | Minor source | No |
| HOUSTON AVENUE, 636 | Minor source | No |
| HOUSTON AVENUE, 657 | Minor source | No |
| HOUSTON AVENUE, 666 | Minor source | No |
| HOUSTON AVENUE, 676 | Minor source | No |
| HOWARD HUGHES MEDICAL INSTITUTE | Synthetic minor source | No |
| HUS AUTO BODY REPAIRS & SERVICES | Minor source | No |
| HUTTON BROTHERS | Minor source | No |
| HYDROLAWN | Minor source | No |
| I.B.M. REAL ESTATE DIVISION | Minor source | No |
| IBM CORPORATION | Minor source | No |
| IMPERIAL AUTO BODY | Minor source | No |
| IN AND OUT AUTO BODY | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.