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 |
|---|---|---|
| TRICK TRUCKS, INC. (KENSINGTON) | No | |
| TRUE2FORM COLLISION REPAIR, LLC- AIRPARK | Minor source | No |
| TUCKERMAN ELEMENTARY SCHOOL | Minor source | No |
| TWIN BROOK ELEMENTARY SCHOOL | Minor source | No |
| TWINBROOK EXXON | Minor source | No |
| U.S. NAVY - 8621 GEORGIA AVENUE | Minor source | No |
| U.S. POSTAL DEVEL - 10000 KENTSDALE | Minor source | No |
| U.S. POSTAL DEVEL-10100 KENTSDALE DR | Minor source | No |
| UNITED GLOBE AUTO BODY | Minor source | No |
| UNITED KOREAN & TRINITY PRESBYTERIAN | Minor source | No |
| UNIVERSITY BOULEVARD, 1111 | Minor source | No |
| UNIVERSITY BOULEVARD, 1121 | Minor source | No |
| UNIVERSITY BOULEVARD, 1135 | Minor source | No |
| UNIVERSITY BOULEVARD, 3333 | Minor source | No |
| UNIVERSITY BOULEVARD, 512 | Minor source | No |
| UNIVERSITY BOULEVARD, WEST 1131 | Minor source | No |
| UNIVERSITY OF MARYLAND SHADY GROVE | Minor source | No |
| UNO AUTO SALE | Minor source | No |
| UPPER COUNTY COMMUNITY CENTER | Minor source | No |
| US ARMY-FT. DETRICK-FOREST GLEN ANNEX | Synthetic minor source | No |
| US ENERGY R&D ADMIN | Minor source | No |
| VAN-WALKER WOODWORKING | Minor source | No |
| VEIRS MILL ROAD & GAYNOR ROAD | Minor source | No |
| VERIZON - 13100 COLUMBIA PIKE | Synthetic minor source | No |
| VERIZON FAIRLAND DATA CENTER | Minor source | No |
| VICTOR'S AUTO BODY & REPAIR | Minor source | No |
| VIERS MILL ELEMENTARY SCHOOL | Minor source | No |
| VILLAGE SQUARE WEST | Minor source | No |
| W EXPRESS | Minor source | No |
| W M A T A - 12750 LAYHILL ROAD | Minor source | No |
| W M A T A - 15903 SOMMERVILLE DRIVE | Minor source | No |
| W M A T A - 5400 MARINELLI ROAD | Minor source | No |
| W S S C - 112 WEST DIAMOND AVENUE | Minor source | No |
| W S S C - 2500 LYTTONSVILLE ROAD | Minor source | No |
| W.F. WILSON AND SONS | Minor source | No |
| WADSWORTH DRIVE, 9300 | Minor source | No |
| WALKER'S CHOICE ROAD, 18637 | Minor source | No |
| WALKER'S CHOICE ROAD, 18740 | Minor source | No |
| WARNER MEMORIAL PRESBYTERIAN CHURCH | Minor source | No |
| WASHINGTON AVENUE, 2100 | Minor source | No |
| WASHINGTON CENTER | Minor source | No |
| WASHINGTON GAS - COLUMBIA YARD | Minor source | No |
| WASHINGTON GAS - FREDERICK GAS BRINK | Minor source | No |
| WASHINGTON GAS - ROCKVILLE STATION | Major source | No |
| WASHINGTON GROVE ELEMENTARY SCHOOL | Minor source | No |
| WASHINGTON INTERNATIONAL SCHOOL | Minor source | No |
| WASHINGTON WALDORF SCHOOL | Minor source | No |
| WASHINGTON WALDORF SCHOOL | Minor source | No |
| WASHINTONIAN AT BETHESDA | Minor source | No |
| WATKINS CABINET COMPANY | Minor source | No |
| WATKINS MILL ELEMENTARY SCHOOL | Minor source | No |
| WATKINS/JOHNSON COMPANY | Minor source | No |
| WAYNE AVENUE, EAST 25/75 | Minor source | No |
| WAYNE AVENUE, EAST 95 | Minor source | No |
| WAYSIDE ELEMENTARY SCHOOL | Minor source | No |
| WEBTEC RAILWAY ELECTRONICS | Minor source | No |
| WEINSCHEL ENGINEERING | Minor source | No |
| WELLER ROAD ELEMENTARY SCHOOL | Minor source | No |
| WELLER'S CLEANERS | Minor source | No |
| WELLINGTON DRIVE, 4800 | Minor source | No |
| WELLSTAT BIOLOGIES | Minor source | No |
| WEST BROOK ELEMENTARY SCHOOL | Minor source | No |
| WEST ROCKVILLE ELEMENTARY SCHOOL | Minor source | No |
| WEST, JULIUS MIDDLE SCHOOL | Minor source | No |
| WESTBARD AVENUE, 5331 | Minor source | No |
| WESTBARD AVENUE, 5333 | Minor source | No |
| WESTBARD AVENUE, 5401 | Minor source | No |
| WESTBARD CIRCLE, 5301 | Minor source | No |
| WESTERN MIDDLE SCHOOL | Minor source | No |
| WESTERN, LLC. | Minor source | No |
| WESTFIELD SHOPPINGTOWN | Minor source | No |
| WESTLAKE DRIVE, 10250 | Minor source | No |
| WESTLAKE TERRACE, 7420 | Minor source | No |
| WESTLAND MIDDLE SCHOOL | Minor source | No |
| WESTOVER ELEMENTARY SCHOOL | Minor source | No |
| WESTWOOD RETIREMENT HOME | Minor source | No |
| WEYMOUTH STREET, 10513 | Minor source | No |
| WEYMOUTH STREET, 10637 | Minor source | No |
| WHETSTONE ELEMENTARY SCHOOL | Minor source | No |
| WHITE FLINT COLLISION CENTER, INC | No | |
| WHITE OAK CLEANERS | Minor source | No |
| WHITE OAK GARDENS | Minor source | No |
| WHITE OAK MIDDLE | Minor source | No |
| WHITE OAKS AUTO SERVICE | Minor source | No |
| WHITMAN, WALT HIGH SCHOOL | Minor source | No |
| WHITTIER WOODS ELEMENTARY SCHOOL | Minor source | No |
| WILCOXON CONSTRUCTION | Minor source | No |
| WILDWOOD MEDICAL CENTER | Minor source | No |
| WILKENS AVE, 12200 | Minor source | No |
| WILLARD AVENUE, 4701 | Minor source | No |
| WILSON PONTIAC | Minor source | No |
| WIMSATT ART CONSERVATION STUDIO | Minor source | No |
| WINNERBURG MANOR DRIVE, 12509 | Minor source | No |
| WISCONSIN AVE 7335 (GUEST QUARTERS) | Minor source | No |
| WISCONSIN AVE, 5600 | Minor source | No |
| WISCONSIN AVENUE, 5454 | Minor source | No |
| WISCONSIN AVENUE, 5480 | Minor source | No |
| WISCONSIN AVENUE, 5530 | Minor source | No |
| WISCONSIN AVENUE, 6900 | Minor source | No |
| WISCONSIN AVENUE, 6935 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.