Montgomery County, Maryland — public water systems
50 active public water systems serve Montgomery County, reporting 1.9M people served.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
50
Population served
1.9M
Community systems
3
Groundwater share
90%
Water systems in Montgomery County
| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Washington Suburban Sanitary Commission | Montgomery | 1,900,000 | Community | Surface water |
| 2 | Town of Poolesville | Montgomery | 6,005 | Community | Groundwater under influence of surface water |
| 3 | Adventist Healthcare Shady Grove Med Ctr | Montgomery | 2,100 | Non-transient non-community | Purchased surface water |
| 4 | Fairland Crossing Apartments | Montgomery | 1,248 | Community | Purchased surface water |
| 5 | National Institutes of Health | Montgomery | 1,100 | Non-transient non-community | Purchased surface water |
| 6 | Glenstone Foundation | Montgomery | 537 | Non-transient non-community | Groundwater |
| 7 | Dickerson Market | Montgomery | 510 | Transient non-community | Groundwater |
| 8 | Darnestown Swim and Raquet Club | Montgomery | 470 | Transient non-community | Groundwater |
| 9 | The Barnesville School | Montgomery | 440 | Non-transient non-community | Groundwater |
| 10 | Smokey Glen Farm - Picnic Pavillion | Montgomery | 400 | Transient non-community | Groundwater |
| 11 | Smokey Glen Farm- Grove Area | Montgomery | 400 | Transient non-community | Groundwater |
| 12 | Monocacy Elementary School | Montgomery | 351 | Non-transient non-community | Groundwater |
| 13 | Comus Inn | Montgomery | 256 | Transient non-community | Groundwater |
| 14 | Old Anglers Inn | Montgomery | 200 | Transient non-community | Groundwater |
| 15 | Little Bennett Golf Course-Clubhouse | Montgomery | 200 | Transient non-community | Groundwater |
| 16 | Montgomery Country Club | Montgomery | 200 | Transient non-community | Groundwater |
| 17 | Laytonsville Golf Course- Clubhouse | Montgomery | 200 | Transient non-community | Groundwater |
| 18 | Boyds Presb and Elf School,Camp Sunshine | Montgomery | 180 | Transient non-community | Groundwater |
| 19 | Butler School | Montgomery | 169 | Non-transient non-community | Groundwater |
| 20 | Mater Amoris Montessori School | Montgomery | 155 | Non-transient non-community | Groundwater |
| 21 | N.I.H. Animal Center | Montgomery | 150 | Non-transient non-community | Groundwater |
| 22 | Glenvilah Center I [12944 A-E] | Montgomery | 138 | Transient non-community | Groundwater |
| 23 | T.W. Enterprize and Texs Carryout | Montgomery | 138 | Transient non-community | Groundwater |
| 24 | Ruppert Landscape | Montgomery | 119 | Non-transient non-community | Groundwater |
| 25 | Empire Cafe | Montgomery | 105 | Transient non-community | Groundwater |
| 26 | Sunshine General Store | Montgomery | 100 | Transient non-community | Groundwater |
| 27 | Tri-County Baptist Church | Montgomery | 100 | Transient non-community | Groundwater |
| 28 | Potomac Swim and Tennis | Montgomery | 100 | Transient non-community | Groundwater |
| 29 | Bretton Woods Recreation Center | Montgomery | 100 | Non-transient non-community | Groundwater |
| 30 | Glenvilah Center Ii [12948 A-F] | Montgomery | 93 | Transient non-community | Groundwater |
| 31 | Cedar Grove Beer and Wine | Montgomery | 80 | Transient non-community | Groundwater |
| 32 | Etchison Country Store | Montgomery | 80 | Transient non-community | Groundwater |
| 33 | Camp Bennett Office/[Union Mission] | Montgomery | 80 | Transient non-community | Groundwater |
| 34 | Camp Bennett Lodge [Union Mission] | Montgomery | 80 | Transient non-community | Groundwater |
| 35 | Pleasants Excavation Co., Inc.. | Montgomery | 75 | Non-transient non-community | Groundwater |
| 36 | Denise Bakery | Montgomery | 70 | Transient non-community | Groundwater |
| 37 | Montgomery Co Resource Recovery Facility | Montgomery | 64 | Non-transient non-community | Groundwater |
| 38 | C.S.A.A.C. - Brookeville School Campus | Montgomery | 60 | Non-transient non-community | Groundwater |
| 39 | Seneca Academy & the Circle School | Montgomery | 60 | Non-transient non-community | Groundwater |
| 40 | Little Bennett- Driving Range | Montgomery | 50 | Transient non-community | Groundwater |
| 41 | Glenvilah Center Iii [12960- 12964] | Montgomery | 50 | Transient non-community | Groundwater |
| 42 | St. Marys Church | Montgomery | 50 | Transient non-community | Groundwater |
| 43 | Poolesville Public Golf Club | Montgomery | 40 | Transient non-community | Groundwater |
| 44 | Dayspring Church - Wellspring Well | Montgomery | 37 | Transient non-community | Groundwater |
| 45 | Neutron Products, Inc.. | Montgomery | 35 | Non-transient non-community | Groundwater |
| 46 | Camp Waredaca | Montgomery | 34 | Transient non-community | Groundwater |
| 47 | Our House Job Training Center for Youth | Montgomery | 30 | Non-transient non-community | Groundwater |
| 48 | Moms Organic Market | Montgomery | 25 | Transient non-community | Purchased surface water |
| 49 | Bar T Ranch | Montgomery | 25 | Transient non-community | Groundwater |
| 50 | Four Streams LLC | Montgomery | 25 | Transient non-community | Groundwater |