| Region 1: |
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| Bland County |
Town of Coeburn |
| Bluefield Sanitary Board |
Town of Damascus |
| Buchanan County PSA |
Town of Dublin |
| Carroll County |
Town of Dungannon |
| Castlewood Water & Sewage Authority |
Town of Fries |
| City of Galax |
Town of Gretna |
| City of Norton |
Town of Hillsville |
| C-N-W Regional WW Treatment Auth. |
Town of Honaker |
| Dickenson County PSA |
Town of Hurt |
| Ferrum Water & Sewer Authority |
Town of Independence |
| Floyd-Floyd County PSA |
Town of Jonesville |
| Franklin County Public Works Department |
Town of Lebanon |
| Henry Co. PSA |
Town of Pennington Gap |
| John Flannagan Water Authority |
Town of Pocahontas |
| Lee County PSA |
Town of Pound |
| New River Regional Water Authority |
Town of Pulaski |
| Pittsylvania Co. Service Authority |
Town of Richlands |
| Pulaski County PSA |
Town of Rocky Mount WWTP & WTP |
| Rye Valley Water Authority |
Town of Rural Retreat |
| Scott County PSA |
Town of Saltville |
| St. Charles Water Authority |
Town of St. Paul |
| Tazewell County PSA |
Town of Stuart |
| Thomas Bridge Water Corp. |
Town of Tazewell |
| Town of Appalachia |
Town of Wise |
| Town of Big Stone Gap |
Town of Wytheville |
| Town of Bluefield |
Wise County PSA |
| Town of Boones Mill |
Woodway Water Authority |
| Town of Cedar Bluff |
Wythe County |
| Town of Chatham |
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| Region 2: |
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| Albemarle County Service Authority |
Pepper’s Ferry Wastewater Authority |
| Alleghany County Public Works Dept. |
Rockbridge Co. PSA |
| Amherst County Service Authority |
Town of Altavista |
| Augusta County Service Authority |
Town of Amherst |
| Bath County Service Authority |
Town of Appomattox |
| Bedford County PSA |
Town of Buchanan |
| Blacksburg-Christiansburg Water Authority |
Town of Christiansburg |
| Blacksburg-VPI Sanitation Authority |
Town of Clifton Forge |
| Botetourt County Utilities |
Town of Craigsville |
| Buckingham County |
Town of Fincastle |
| Campbell County Schools |
Town of Glasgow |
| Campbell County Utilities & Service Authority |
Town of Glen Lyn |
| City of Buena Vista |
Town of Goshen |
| City of Covington – Jackson River WTP |
Town of Iron Gate |
| Craig-New Castle PSA |
Town of Monterey |
| Fork Union Sanitary District |
Town of Narrows |
| Giles County Public Service Authority |
Town of Pearisburg |
| Giles County Water Works |
Town of Pembroke |
| Highland County |
Town of Rich Creek |
| Maury Service Authority |
Town of Troutville |
| Millboro Water Association |
Town of Vinton |
| Montgomery County PSA |
Town of Warm Springs |
| Montvale Water Inc. |
Western Virginia Water Authority/Water Op. Division |
| Nelson County Service Authority |
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| Region 3: |
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| Culpeper County Environmental Services |
Town of Hamilton |
| Fauquier Co. Water & Sanitation Authority |
Town of Leesburg |
| Federal Emergency Management Agency |
Town of Lovettsville |
| High Knob Utilities |
Town of Luray |
| King George County |
Town of Middleburg |
| Loudoun Water Authority |
Town of Middletown |
| Rapidan Service Authority |
Town of Mount Jackson |
| Rockingham County Public Works |
Town of New Market |
| Stoney Creek Sanitary District |
Town of Orange |
| Tauxemont Community Association |
Town of Purcellville |
| Toms Brook-Maurertown Sanitary District |
Town of Quantico |
| Town of Berryville |
Town of Remington |
| Town of Bridgewater |
Town of Round Hill |
| Town of Broadway |
Town of Shenandoah |
| Town of Culpeper |
Town of Stanley |
| Town of Dayton |
Town of Stephens City |
| Town of Edinburg |
Town of Strasburg |
| Town of Elkton |
Town of Timberville |
| Town of Gordonsville |
Town of Warrenton |
| Town of Grottoes |
Town of Washington |
| Town of Woodstock |
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| Region 4: |
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| Caroline County |
Town of Bowling Green |
| Caroline Pines POA |
Town of Colonial Beach |
| Charles City County Public Works |
Town of Kilmarnock |
| Gloucester County Public Utilities |
Town of Louisa |
| Goochland County Public Utilities |
Town of Mineral |
| Hanover County DPU |
Town of Montross |
| James City Service Authority |
Town of Tappahannock |
| Louisa County Public Schools Maint. Dept. |
Town of Warsaw |
| Louisa County Water Authority |
Town of West Point |
| New Kent County |
Woodhaven Water Company |
| Ridge Utilities |
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| Region 5: |
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| Amelia County Sanitary District |
Town of Crewe |
| City of Emporia |
Town of Dendron |
| City of Franklin |
Town of Drakes Branch |
| Cumberland County |
Town of Eastville |
| Dinwiddie County Water Authority |
Town of Farmville |
| Greensville Co. Water & Sewer Authority |
Town of Kenbridge |
| Halifax County Service Authority |
Town of Keysville |
| Isle of Wight County |
Town of LaCrosse |
| Northampton County |
Town of Lawrenceville |
| Old Dominion Utility |
Town of McKenney |
| Powhatan County Utility |
Town of Onancock |
| Roanoke River Service Authority |
Town of Pamplin |
| Southampton County Public Utilities |
Town of Parksley |
| Sussex Service Authority |
Town of Phenix |
| Town of Boydton |
Town of Smithfield |
| Town of Brodnax |
Town of South Hill |
| Town of Burkeville |
Town of Surry |
| Town of Cape Charles |
Town of Tangie |
| Town of Capron |
Town of Victoria |
| Town of Charlotte Court House |
Town of Wakefield |
| Town of Chase City |
Town of Waverly |
| Town of Chincoteague |
Town of Windsor |
| Town of Claremont |
Town of Clarksville |
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