How many wastewater treatment plants are there in Virginia?

Klarifi tracks 223 publicly owned wastewater treatment plants in Virginia with a combined average flow of 203 million gallons per day, serving about 1,759,135 residents. 21 of them treat more than 1 MGD and 4 more than 10 MGD.

What is the largest wastewater treatment plant in Virginia?

Richmond WWTP in Richmond is the largest plant in Virginia by average flow, treating about 63.4 MGD.

What treatment technologies are common in Virginia?

42 of Virginia's plants use lagoon systems and 14 have biogas or anaerobic digestion infrastructure, based on Klarifi's aerial imagery review.

How many NPDES permits in Virginia are up for renewal?

16 permits held by Virginia plants expire in 2026 and 36 in 2027. Renewals typically bring new limits and trigger upgrade projects.

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Wastewater Treatment Plants in Virginia

Name: Wastewater treatment plants in Virginia
Creator: Klarifi
License: https://klarifi.io/terms-of-service

223 facilities · 203 MGD combined flow

Klarifi tracks 223 publicly owned wastewater treatment plants in Virginia with a combined average flow of 203 MGD, serving about 1,759,135 residents. 21 plants treat more than 1 MGD and 4 more than 10 MGD; 42 use lagoon systems and 14 have digesters or biogas infrastructure. The largest is Richmond WWTP in Richmond at 63.4 MGD. 16 NPDES permits expire this year and 36 next year.

Every plant below links to a profile with average and design flow, treatment technology, the NPDES permit and its expiry, a three-year compliance snapshot and the capital projects planned in its city. Showing facilities 1–200 of 223 by average flow — browse the rest with the page links below.

223 plant locations in Virginia; dot size follows average flow.

NPDES permits and renewals in Virginia

Every plant discharges under an NPDES permit that is renewed every five years, usually with tighter limits. The renewal year is the year a plant budgets for upgrades.

All NPDES permits in Virginia →16 permits expiring in 2026 →36 permits expiring in 2027 →49 permits expiring in 2028 →Find plants near you on the map →

Largest wastewater treatment plants in Virginia

The 25 largest publicly owned wastewater treatment plants in Virginia by average flow, with NPDES permit, expiry, treatment technology and three-year violation count. Source: EPA ICIS-NPDES via Klarifi.
Facility	City	Avg flow (MGD)	Design (MGD)	NPDES permit	Expires	Technology	Violations (3y)
Richmond WWTP	Richmond	63.4	—	VAL063177	Dec 2030	Clarifiers, Biogas silos	31
Noman M Cole Jr Pollution Control Plant	Lorton	34.8	—	VAL025364	Dec 2030	Clarifiers, Aerated lagoons	0
Arlington County Water Pollution Control Plant	Arlington	20.7	40	VA0025143	Nov 2024	Clarifiers, Biogas silos, Biogas balloons	4
H L Mooney Water Reclamation Facility	Woodbridge	14.17	24	VA0025101	Oct 2030	Clarifiers, Aerated lagoons, Biogas silos, Biogas balloons	0
City Of Danville Northside WWTP	Danville	5.03	—	VAL060593	Dec 2030	Clarifiers, Uncovered lagoons	5
Martinsville STP	Ridgeway	4.11	—	VAL025305	Dec 2030	Clarifiers, Aerated lagoons	26
Front Royal WWTP	Front Royal	3.64	5.3	VA0062812	Oct 2028	Clarifiers	2
Peppers Ferry Regional Wastewater Treatment Plant	Radford	3.3	—	VAL062685	Dec 2030	Clarifiers, Biogas silos	0
Middle River Regional WWTP	Verona	3.03	6.8	VA0064793	Feb 2031	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	0
Culpeper Wastewater Treatment Plant	Culpeper	2.9	—	VAL061590	Dec 2030	Clarifiers, Aerated lagoons, Uncovered lagoons, Biogas silos	0
Christiansburg Town Of	Christiansburg	2.8	—	VAL061751	Dec 2030	Clarifiers, Aerated lagoons, Biogas silos	1
Fredericksburg Wastewater Treatment Facility	Fredericksburg	2.33	—	VAL025127	Dec 2030	Clarifiers, Aerated lagoons, Carrousels / oxidation ditches, Biogas silos	12
Fmc Wastewater Treatment Plant	Fredericksburg	2.02	—	VAL068110	Dec 2030	Clarifiers	2
Maple Ave WWTP	South Boston	2	4	VA0020362	Aug 2029	Clarifiers	42
Parkins Mills Wastewater Treat	Winchester	1.96	—	VAL075191	Dec 2030	Clarifiers, Carrousels / oxidation ditches	43
Richlands Regional WWTF	Richlands	1.91	—	VAL021199	Dec 2030	Clarifiers, Biogas silos	1
Big Stone Gap Regional WWTP	Big Stone Gap	1.71	—	VAL020940	Dec 2030	Clarifiers, Aerated lagoons, Uncovered lagoons, Carrousels / oxidation ditches	4
Altavista Town - Wastewater Treatment Plant	Altavista	1.7	3.6	VA0020451	May 2031	Clarifiers, Aerated lagoons, Uncovered lagoons	0
Wytheville WWTP	Wytheville	1.59	4	VA0020281	Apr 2029	Clarifiers, Biogas silos, Biogas balloons	94
Galax Wastewater Treatment Facility	Galax	1.47	—	VAL078484	Dec 2030	Clarifiers, Biogas silos	1
Town Of Luray	Luray	1.22	1.6	VA0062642	Mar 2031	Clarifiers, Carrousels / oxidation ditches	9
Lexington-Rockbridge Regional Wqcf	Lexington	0.96	—	VAL088161	Dec 2030	Carrousels / oxidation ditches	0
Wilderness Wastewater Treatment Plant	Locust Grove	0.87	2	VA0083411	Sep 2027	Clarifiers, Carrousels / oxidation ditches	2
Bedford Wastewater Treatment Plant	Bedford	0.8	—	VAL022390	Dec 2030	Clarifiers, Biogas balloons	10
Rocky Mount Town Sewage Treatment Plant	Rocky Mount	0.77	—	VAL085952	Dec 2030	Clarifiers, Carrousels / oxidation ditches	0

The 50 largest plants in Virginia →Virginia capital improvement plans →

Virginia plants by treatment technology

Activated sludge and clarifiers (72)Lagoon systems (42)Oxidation ditches (29)Nutrient removal (20)Anaerobic digesters and biogas (14)UV disinfection (8)

All 223 plants in Virginia

Facility	City	Flow (MGD)
Richmond WWTP	Richmond	63.4
Noman M Cole Jr Pollution Control Plant	Lorton	34.8
Arlington County Water Pollution Control Plant	Arlington	20.7
H L Mooney Water Reclamation Facility	Woodbridge	14.17
City Of Danville Northside WWTP	Danville	5.03
Martinsville STP	Ridgeway	4.11
Front Royal WWTP	Front Royal	3.64
Peppers Ferry Regional Wastewater Treatment Plant	Radford	3.3
Middle River Regional WWTP	Verona	3.03
Culpeper Wastewater Treatment Plant	Culpeper	2.9
Christiansburg Town Of	Christiansburg	2.8
Fredericksburg Wastewater Treatment Facility	Fredericksburg	2.33
Fmc Wastewater Treatment Plant	Fredericksburg	2.02
Maple Ave WWTP	South Boston	2
Parkins Mills Wastewater Treat	Winchester	1.96
Richlands Regional WWTF	Richlands	1.91
Big Stone Gap Regional WWTP	Big Stone Gap	1.71
Altavista Town - Wastewater Treatment Plant	Altavista	1.7
Wytheville WWTP	Wytheville	1.59
Galax Wastewater Treatment Facility	Galax	1.47
Town Of Luray	Luray	1.22
Lexington-Rockbridge Regional Wqcf	Lexington	0.96
Wilderness Wastewater Treatment Plant	Locust Grove	0.87
Bedford Wastewater Treatment Plant	Bedford	0.8
Rocky Mount Town Sewage Treatment Plant	Rocky Mount	0.77
South Hill WWTP	South Hill	0.74
Lawrenceville STP	Lawrenceville	0.74
Orange Virginia Town Of Sewage	Orange	0.73
Emporia, City Of	Emporia	0.7
Alleghany Co - Lower Jackson River Regional WWTP	Iron Gate	0.7
Remington Wastewater Treatment	Remington	0.68
Strasburg STP	Strasburg	0.65
Blackstone Town	Blackstone	0.57
Parham Landing WWTP	West Point	0.57
Caroline County Regional Sewage Treatment Plant	Ruther Glen	0.5
Woodstock STP	Woodstock	0.5
Tazewell Wastewater Plant, Tow	Tazewell	0.48
Scott County Psa - Holston Regional WWTP	Weber City	0.47
Town Of Tappahannock Wastewater Treatment Plant	Tappahannock	0.42
Washington Cnty Service Authority -Hall Creek WWTP	Glade Spring	0.4
Pound WWTP	Pound	0.36
Hillsville WWTP	Hillsville	0.36
Round Hill Town Wastewater Treatment Plant	Round Hill	0.36
St Paul Wastewater Treatment Plant	St Paul	0.33
Three Creek WWTP	Emporia	0.33
Berryville WWTP	Berryville	0.32
Chilhowie Regional Wastewater Treatment Plant	Chilhowie	0.32
Mount Jackson WWTP	Mount Jackson	0.31
Chatham Town - Sewage Treatmen	Chatham	0.31
Pennington Gap STP	Pennington Gap	0.29
Lee County Psa - Hickory Flats WWTP	Jonesville	0.29
Vint Hill Farm Station	Warrenton	0.29
Fort Chiswell WWTP	Max Meadows	0.28
Louisa Regional Sewage Treatme	Louisa	0.28
Moneta Regional WWTP	Moneta	0.27
Doswell Wastewater Treatment	Doswell	0.27
HRSD - Onancock WWTP	Onancock	0.27
Rutledge Creek WWTP	Amherst	0.26
Town Of Elkton STP	Elkton	0.25
Town Of Chase City WWTP	Chase City	0.25
Independence STP	Independence	0.23
Hot Springs Regional STP	Hot Springs	0.23
Gretna Town - Sewage Treatment Plant	Gretna	0.23
Black Swamp Regional WWTP	Waverly	0.22
Saltville Town - WWTP	Saltville	0.21
Dickenson County Public Service Auth - Haysi STP	Haysi	0.2
Cape Charles Town - Wastewater Treatment Plant	Cape Charles	0.2
Claypool Hill Wastewater Treatment Plant	Cedar Bluff	0.2
Rapidan WWTP	Ruckersville	0.19
Middletown STP	Middletown	0.19
Weyers Cave WWTP	Weyers Cave	0.18
Northern Tazewell County WWTF	Pocahontas	0.17
Marshall Wastewater Treatment Plant	Marshall	0.16
Stuart Town - Waste Water Treatment Plant	Stuart	0.16
Appomattox Water Reclamation Facility	Appomattox	0.16
Kenbridge STP	Kenbridge	0.16
Mckenney WWTP	Mckenney	0.16
Victoria East Sewage Treatment Plant	Victoria	0.16
Craig New Castle Psa Wwt Plant	New Castle	0.15
Warsaw Wastewater Treatment Plant	Warsaw	0.15
Boykins Town - Waste Water Treatment Plant	Boykins	0.15
Courtland Town - Wastewater Treatment Plant	Courtland	0.15
Duffield Industrial Park WWTP	Duffield	0.15
Boydton WWTP	Boydton	0.15
Rural Retreat Wastewater Treatment Plant	Rural Retreat	0.14
Clarksville WWTP	Clarksville	0.14
Augusta Correctional Center	Craigsville	0.13
Ferrum Town - Sewage Treatment Plant	Ferrum	0.13
Glenmore STP	Charlottesville	0.12
Toms Brook, Inc.	Toms Brook	0.12
Stanley STP	Stanley	0.12
Grottoes WWTP	Grottoes	0.12
Clintwood WWTP	Clintwood	0.11
Floyd Town - Floyd Co - Public Service Authority	Floyd	0.11
Narrows STP	Narrows	0.11
Pearisburg Town - Sewage Treatment Plant	Pearisburg	0.1
Damascus WWTP	Damascus	0.1
Alleghany County - Low Moor WWTP	Low Moor	0.1
Amelia Courthouse Sanitary District WWTP- Nibbs Cr	Amelia	0.1
Edinburg STP	Edinburg	0.1
Bowling Green Wastewater Treatment Plant	Bowling Green	0.09
Nelson County Regional STP	Lovingston	0.09
Clevengers Village WWTP	Jeffersonton	0.08
Hamilton Sewage Treatment Plan	Hamilton	0.08
Falling Run WWTP	Emporia	0.08
Montross-Westmoreland WWTP	Montross	0.08
Middleburg Wastewater Treatment Plant	Middleburg	0.08
Town Of Glasgow WWTP	Glasgow	0.08
Dinwiddie County Water Auth	Dinwiddie	0.07
Elliston-Lafayette WWTP	Elliston	0.07
Fries WWTP	Fries	0.07
Tangier Town	Tangier	0.07
Pembroke Town - Sewage Treatment Plant	Pembroke	0.07
Bastian WWTP	Bland	0.06
Jarratt Sewage Treatment Plant	Jarratt	0.06
Purkins Corner Wastewater Treatment Plant	King George	0.06
Boyce STP	Boyce	0.05
Campbell Co Util And Serv Auth - Rustburg	Rustburg	0.05
Lee County Public Service Authority-Rose Hill WWTP	Rose Hill	0.05
Shawsville Wastewater Treatment Plant	Shawsville	0.05
Madison Wastewater Treatment Plant	Madison	0.05
Reedville WWTP	Reedville	0.05
HRSD King William County Sewage Treatment Plant	King William	0.05
Vesper View Wasteway	Verona	0.05
Buchanan Town - Sewage Treatment Plant	Buchanan	0.05
Hanover Courthouse WWTP	Hanover	0.04
Brookneal Town - Falling River Lagoon	Brookneal	0.04
Fairview Beach Wastewater Treatment Plant	King George	0.04
Catawba Hospital	Catawba	0.04
Fighting Creek WWTF	Powhatan	0.04
Scottsville WRRF	Scottsville	0.04
Nickelsville WWTP	Nickelsville	0.04
Oakland Park Sewage Treatment Plant	King George	0.04
Stony Creek Waste Water Treatment Plant	Stony Creek	0.04
Riner WWTP	Riner	0.04
North Fork Regional WWTP	Edinburg	0.03
Harriston WWTP	Grottoes	0.03
Brookneal Town - Staunton River Lagoon	Brookneal	0.03
Tazewell County Psa - Falls Mills Hales Bottom STP	Cedar Bluff	0.03
Boones Mill Sewage Treatment Plant	Boones Mill	0.03
Monterey STP	Monterey	0.02
Callao Wastewater Treatment Plant	Callao	0.02
Dante Community WWTP	Dante	0.02
Spotsylvania County High School	Spotsylvania	0.02
Doc - James River Correctional Center	State Farm	0.02
Rush River Wastewater Treatment Plant	Washington	0.02
Dungannon STP	Dungannon	0.02
Sperryville Sewage Treatment Plant	Sperryville	0.02
Cleveland STP	Cleveland	0.02
Virgilina Town Of	Virgilina	0.01
Charles City County Schools WWTP	Charles City	0.01
Warm Springs STP	Warm Springs	0.01
Palmyra Area WWTP	Palmyra	0.01
Clover WWTP	Clover	0.01
I-77 Exit 1 WWTP	Lambsburg	0.01
Millboro STP	Millboro	0.01
New Hope WWTP	Fort Defiance	0.01
Scottsburg WWTP	Scottsburg	0.01
Central WWTP	Palmyra	0.01
Doc - Appalachian Comm Corr Alternative Prog	Honaker	0.01
Breaks Interstate Park Camp 1 STP	Breaks	0.01
Lee County Public Service Authority - Cross Creek	Dryden	0.01
Vdot Interstate 64 Goochland Rest Area	Goochland	0.0094
Doc Rustburg Correctional Unit 9	Rustburg	0.009
Montvale Wastewater Treatment Plant	Montvale	0.009
Doc Caroline Correctional Unit 2	Hanover	0.008
Doc - Wise Correctional Unit 18 STP	Coeburn	0.008
Halifax County Schools-Cluster Springs Elem	Alton	0.0077
Rappahannock County Elementary School	Washington	0.007
Ruthville Community Center WWTP	Providence Forge	0.0052
Wvwa - Eagle Rock WWTP	Eagle Rock	0.0052
Amherst Co Service Authority Westbriar Subdivision	Amherst	0.005
Locust Grove Elementary School	Locust Grove	0.0049
Page County High School And Middle School STP	Shenandoah	0.0044
Buchanan Cnty Public Schools - Twin Valley H S STP	Whitewood	0.0042
Amherst Co Service Auth-Ivanho	Madison Heights	0.004
Smyth County Public Schools - Northwood Middle	Saltville	0.004
Vdot Interstate 85 Brunswick Rest Area	Brunswick County	0.004
Dickenson County Psa STP #1	Trammel	0.0035
Vdot Interstate 95 Prince George Rest Area WWTP	Petersburg	0.0035
Vdot I81 Rest Area - Botetourt	Troutville	0.0034
Cedar Creek WWTP	Hot Springs	0.003
Gunston Elementary School	Lorton	0.003
Indian Hollow Elementary School	Winchester	0.003
Rappahannock County High School	Washington	0.003
Sussex Courthouse Complex	Sussex	0.003
Hanover Juvenile Correctional Center	Hanover	0.0027
Buchanan Cnty Public Schools - Council Elem & Hs	Council	0.0027
Buchanan Cnty Public Schools - Hurley High School	Hurley	0.0024
Tazewell County Psa - Amonate WWTP	North Tazewell	0.0024
Wvwa - Glen Wilton WWTP	Glen Wilton	0.0024
Wythe Cnty Water And Wastewater - Austinville STP	Austinville	0.0023
Bedford County Schools - Otter River Elem School	Goode	0.0021
Pittsylvania Co - Dan River High School	Ringgold	0.0021
Aldie Wastewater Treatment Plant	Aldie	0.002
Berkeley Elementary School	Spotsylvania	0.002
Schuyler STP	Schuyler	0.002
Charles City Administration Bu	Charles City	0.002
Washington County Public Schools	Abingdon	0.0018
Unionville Elementary School	Unionville	0.0018

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Wastewater treatment in Virginia: questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026.

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