Bull Run
Stream in Virginia, past Buckhall, Bull Run, Sudley and Yorkshire
Current status
A discharge was reported, and we have not found an end time in the sources we track. This status since . Why this status, and its source
This status counts every report affecting this water, including discharges arriving from upstream.
This badge describes the water outline. Check the downstream stretches on the map and below for discharge statuses.
Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.
Dashed river stretches are estimates.
Bookmark this water page and check it before each trip · Report a missing notice or error
About this status
End not confirmed: no end time reported; shown as unconfirmed from day 7 to day 30 (site rule)
Source: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office via Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, record 325809, reported Oct 15, 2026, 9:57 AM EDT, retrieved 2026-11-03 13:25 UTC · Original notice · Updated
Reports behind this status
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.
| When | Report | Status |
|---|---|---|
| Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · SSO · volume not reported report · notice · map | to Nov 14, 8:57 AM |
Sources: Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, retrieved 2026-11-03 13:25 UTC. A report's record id and times show when you hover or focus its "report" link.
Estimated downstream stretches on Bull Run
14 estimated stretches from 1 outlet
Estimated downstream stretch — not checked by water sampling. Estimated by DirtyWaterWatch using U.S. Geological Survey river maps and flow measurements; not an official advisory area.
- End not confirmed 0 to 0.4 kilometres below the outlet
0 to 0.4 kilometres below the outlet · from this report
Estimated travel time: about 1 hour, or as little as 1 hour. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 0.4 to 2.4 kilometres below the outlet
0.4 to 2.4 kilometres below the outlet · from this report
Estimated travel time: about 3 hours, or as little as 2 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 2.4 to 5.3 kilometres below the outlet
2.4 to 5.3 kilometres below the outlet · from this report
Estimated travel time: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 5.3 to 7.9 kilometres below the outlet
5.3 to 7.9 kilometres below the outlet · from this report
Estimated travel time: about 8 hours, or as little as 4 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 7.9 to 8.2 kilometres below the outlet
7.9 to 8.2 kilometres below the outlet · from this report
Estimated travel time: about 8 hours, or as little as 4 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 8.2 to 9.1 kilometres below the outlet
8.2 to 9.1 kilometres below the outlet · from this report
Estimated travel time: about 8 hours, or as little as 5 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 9.1 to 12.4 kilometres below the outlet
9.1 to 12.4 kilometres below the outlet · from this report
Estimated travel time: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 12.4 to 12.4 kilometres below the outlet
12.4 to 12.4 kilometres below the outlet · from this report
Estimated travel time: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 12.4 to 13.4 kilometres below the outlet
12.4 to 13.4 kilometres below the outlet · from this report
Estimated travel time: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 13.4 to 14 kilometres below the outlet
13.4 to 14 kilometres below the outlet · from this report
Estimated travel time: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 14 to 15 kilometres below the outlet
14 to 15 kilometres below the outlet · from this report
Estimated travel time: about 13 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
- End not confirmed 15 to 15.9 kilometres below the outlet
15 to 15.9 kilometres below the outlet · from this report
Estimated travel time: about 13 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available. This estimates water movement, not bacteria levels.
Showing 12 of 14 estimated stretches, nearest the outlets first.
Estimated routes below wastewater outlets
2 routes below outlets
- No current status shown Outlet · 31.3 kilometres estimated · Estimate stops at a lake or bay
- End not confirmed Permit VA0024988 · 21.953 kilometres estimated · Estimate stops at a lake or bay
Source: DirtyWaterWatch estimates using U.S. Geological Survey river maps and flow measurements. The estimate stops at tidal water, the first lake or the distance limit.
The last 90 days
- End not confirmed: to the latest update 1 report: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office 1
Show records
The records are also in the report table on this page.
- Caution: to 1 report: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office 1
Show records
The records are also in the report table on this page.
- Caution: to 1 report: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office 1
Show records
The records are also in the report table on this page.
- Discharge or advisory reported: to 1 report: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office 1
Show records
The records are also in the report table on this page.
Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-03 13:30 UTC.
Reported discharges over time
- Discharges affecting the Bull Run in Virginia, last 12 months33 affecting this stretch: 2 reported in Virginia, 1 arriving from upstream outfalls in VirginiaDecember 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once. Arriving discharges are estimated from modeled downstream reaches.
- Days with a discharge affecting the Bull Run in Virginia, last 12 months3Reported on the Bull Run in Virginia: 2 · Arriving from outfalls upstream in Virginia, estimated: 1December 2025 to November 2026A day counts once however many discharges were under way on it. Verified reports where available, else notices; revisions and duplicates counted once.
- Hours with a discharge or advisory status on the Bull Run in Virginia, last 12 months4Reported on the Bull Run in Virginia: 3 · Arriving from outfalls upstream in Virginia, estimated: 1December 2025 to November 2026Red hours by the map's rules: each discharge to its reported end plus the state's post-discharge period; overlapping hours count once.
- 2026 season with a discharge or advisory status on the Bull Run in Virginia0.0%May to October 2026Share of May 1 to October 31 hours with red status by the map's rules, of the hours a source covered.
- Records behind the last-90-days strip for the Bull Run in Virginia2Reported on the Bull Run in Virginia: 1 · Arriving from outfalls upstream in Virginia, estimated: 1last 90 daysEvery distinct record the strip lists for its red, yellow and unresolved hours, notices and unresolved reports included; counted as the strip counts them.
Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.
Reported discharges per month
7 reported discharges, January 2022 to November 2026.
- Combined sewer overflow
- Sanitary sewer overflow
- Treatment bypass, blended or other
- No tracked source for this period
- Incomplete source coverage
No tracked source covers January 2022 to December 2024.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Month | Combined sewer overflow | Sanitary sewer overflow | Treatment bypass, blended or other | Total | Counted from | Coverage |
|---|---|---|---|---|---|---|
| January 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| February 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| March 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| April 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| May 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| June 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| July 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| August 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| September 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| October 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| November 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| December 2022 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| January 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| February 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| March 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| April 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| May 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| June 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| July 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| August 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| September 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| October 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| November 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| December 2023 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| January 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| February 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| March 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| April 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| May 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| June 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| July 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| August 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| September 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| October 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| November 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| December 2024 | 0 | 0 | 0 | 0 | No tracked source for this period | |
| January 2025 | 0 | 0 | 0 | 0 | Incomplete source coverage | |
| February 2025 | 0 | 0 | 0 | 0 | ||
| March 2025 | 0 | 0 | 0 | 0 | ||
| April 2025 | 0 | 0 | 0 | 0 | ||
| May 2025 | 0 | 1 | 0 | 1 | Source records | |
| June 2025 | 0 | 0 | 0 | 0 | ||
| July 2025 | 0 | 0 | 0 | 0 | ||
| August 2025 | 0 | 0 | 0 | 0 | ||
| September 2025 | 0 | 0 | 0 | 0 | ||
| October 2025 | 0 | 1 | 0 | 1 | Source records | |
| November 2025 | 0 | 0 | 2 | 2 | Source records | |
| December 2025 | 0 | 0 | 0 | 0 | ||
| January 2026 | 0 | 0 | 0 | 0 | ||
| February 2026 | 0 | 1 | 0 | 1 | Source records | |
| March 2026 | 0 | 0 | 0 | 0 | ||
| April 2026 | 0 | 0 | 0 | 0 | ||
| May 2026 | 0 | 0 | 0 | 0 | ||
| June 2026 | 0 | 0 | 0 | 0 | ||
| July 2026 | 0 | 0 | 0 | 0 | ||
| August 2026 | 0 | 0 | 0 | 0 | ||
| September 2026 | 0 | 0 | 0 | 0 | ||
| October 2026 | 0 | 2 | 0 | 2 | Source records | |
| November 2026 | 0 | 0 | 0 | 0 |
Hours with a discharge or advisory status per month
Hours when this water had a discharge or advisory status under DirtyWaterWatch rules.
- Discharge or advisory reported
- No tracked source for this period
- Incomplete source coverage
No tracked source covers January 2022 to December 2024. 3 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Month | Hours with a discharge or advisory status | Hours from post-discharge periods | Hours in the month | Coverage |
|---|---|---|---|---|
| January 2022 | 0 | 0 | 744 | No tracked source for this period |
| February 2022 | 0 | 0 | 672 | No tracked source for this period |
| March 2022 | 0 | 0 | 744 | No tracked source for this period |
| April 2022 | 0 | 0 | 720 | No tracked source for this period |
| May 2022 | 0 | 0 | 744 | No tracked source for this period |
| June 2022 | 0 | 0 | 720 | No tracked source for this period |
| July 2022 | 0 | 0 | 744 | No tracked source for this period |
| August 2022 | 0 | 0 | 744 | No tracked source for this period |
| September 2022 | 0 | 0 | 720 | No tracked source for this period |
| October 2022 | 0 | 0 | 744 | No tracked source for this period |
| November 2022 | 0 | 0 | 720 | No tracked source for this period |
| December 2022 | 0 | 0 | 744 | No tracked source for this period |
| January 2023 | 0 | 0 | 744 | No tracked source for this period |
| February 2023 | 0 | 0 | 672 | No tracked source for this period |
| March 2023 | 0 | 0 | 744 | No tracked source for this period |
| April 2023 | 0 | 0 | 720 | No tracked source for this period |
| May 2023 | 0 | 0 | 744 | No tracked source for this period |
| June 2023 | 0 | 0 | 720 | No tracked source for this period |
| July 2023 | 0 | 0 | 744 | No tracked source for this period |
| August 2023 | 0 | 0 | 744 | No tracked source for this period |
| September 2023 | 0 | 0 | 720 | No tracked source for this period |
| October 2023 | 0 | 0 | 744 | No tracked source for this period |
| November 2023 | 0 | 0 | 720 | No tracked source for this period |
| December 2023 | 0 | 0 | 744 | No tracked source for this period |
| January 2024 | 0 | 0 | 744 | No tracked source for this period |
| February 2024 | 0 | 0 | 696 | No tracked source for this period |
| March 2024 | 0 | 0 | 744 | No tracked source for this period |
| April 2024 | 0 | 0 | 720 | No tracked source for this period |
| May 2024 | 0 | 0 | 744 | No tracked source for this period |
| June 2024 | 0 | 0 | 720 | No tracked source for this period |
| July 2024 | 0 | 0 | 744 | No tracked source for this period |
| August 2024 | 0 | 0 | 744 | No tracked source for this period |
| September 2024 | 0 | 0 | 720 | No tracked source for this period |
| October 2024 | 0 | 0 | 744 | No tracked source for this period |
| November 2024 | 0 | 0 | 720 | No tracked source for this period |
| December 2024 | 0 | 0 | 744 | No tracked source for this period |
| January 2025 | 0 | 0 | 744 | Incomplete source coverage |
| February 2025 | 0 | 0 | 672 | |
| March 2025 | 0 | 0 | 744 | |
| April 2025 | 0 | 0 | 720 | |
| May 2025 | 6 | 6 | 744 | |
| June 2025 | 0 | 0 | 720 | |
| July 2025 | 0 | 0 | 744 | |
| August 2025 | 0 | 0 | 744 | |
| September 2025 | 0 | 0 | 720 | |
| October 2025 | 2 | 2 | 744 | |
| November 2025 | 0 | 0 | 720 | |
| December 2025 | 0 | 0 | 744 | |
| January 2026 | 0 | 0 | 744 | |
| February 2026 | 3 | 3 | 672 | |
| March 2026 | 0 | 0 | 744 | |
| April 2026 | 0 | 0 | 720 | |
| May 2026 | 0 | 0 | 744 | |
| June 2026 | 0 | 0 | 720 | |
| July 2026 | 0 | 0 | 744 | |
| August 2026 | 0 | 0 | 744 | |
| September 2026 | 0 | 0 | 720 | |
| October 2026 | 1 | 1 | 744 | |
| November 2026 | 0 | 0 | 58 |
Days with a reported discharge per month
A day counts when any counted discharge was under way on it, from its start to its reported end in Eastern Time; a report with no end counts its start day.
- No tracked source for this period
- Incomplete source coverage
No tracked source covers January 2022 to December 2024.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Month | Days with a reported discharge | Coverage |
|---|---|---|
| January 2022 | 0 | No tracked source for this period |
| February 2022 | 0 | No tracked source for this period |
| March 2022 | 0 | No tracked source for this period |
| April 2022 | 0 | No tracked source for this period |
| May 2022 | 0 | No tracked source for this period |
| June 2022 | 0 | No tracked source for this period |
| July 2022 | 0 | No tracked source for this period |
| August 2022 | 0 | No tracked source for this period |
| September 2022 | 0 | No tracked source for this period |
| October 2022 | 0 | No tracked source for this period |
| November 2022 | 0 | No tracked source for this period |
| December 2022 | 0 | No tracked source for this period |
| January 2023 | 0 | No tracked source for this period |
| February 2023 | 0 | No tracked source for this period |
| March 2023 | 0 | No tracked source for this period |
| April 2023 | 0 | No tracked source for this period |
| May 2023 | 0 | No tracked source for this period |
| June 2023 | 0 | No tracked source for this period |
| July 2023 | 0 | No tracked source for this period |
| August 2023 | 0 | No tracked source for this period |
| September 2023 | 0 | No tracked source for this period |
| October 2023 | 0 | No tracked source for this period |
| November 2023 | 0 | No tracked source for this period |
| December 2023 | 0 | No tracked source for this period |
| January 2024 | 0 | No tracked source for this period |
| February 2024 | 0 | No tracked source for this period |
| March 2024 | 0 | No tracked source for this period |
| April 2024 | 0 | No tracked source for this period |
| May 2024 | 0 | No tracked source for this period |
| June 2024 | 0 | No tracked source for this period |
| July 2024 | 0 | No tracked source for this period |
| August 2024 | 0 | No tracked source for this period |
| September 2024 | 0 | No tracked source for this period |
| October 2024 | 0 | No tracked source for this period |
| November 2024 | 0 | No tracked source for this period |
| December 2024 | 0 | No tracked source for this period |
| January 2025 | 0 | Incomplete source coverage |
| February 2025 | 0 | |
| March 2025 | 0 | |
| April 2025 | 0 | |
| May 2025 | 1 | |
| June 2025 | 0 | |
| July 2025 | 0 | |
| August 2025 | 0 | |
| September 2025 | 0 | |
| October 2025 | 1 | |
| November 2025 | 1 | |
| December 2025 | 0 | |
| January 2026 | 0 | |
| February 2026 | 1 | |
| March 2026 | 0 | |
| April 2026 | 0 | |
| May 2026 | 0 | |
| June 2026 | 0 | |
| July 2026 | 0 | |
| August 2026 | 0 | |
| September 2026 | 0 | |
| October 2026 | 2 | |
| November 2026 | 0 |
Reported volume per year
Gallons (axis: K thousand, M million), summed from the 5 reports that gave a volume as a number (2 did not).
- Incomplete source coverage
2 of 7 discharge reports gave no volume as a number; only numbers are summed.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Year | Reported volume, gallons | Reports with a volume | Reports without a volume | Coverage |
|---|---|---|---|---|
| 2025 | 4,400 | 3 | 1 | Incomplete source coverage |
| 2026 | 2,520 | 2 | 1 |
Hours with a discharge or advisory status per year
Hours with a discharge or advisory status each year under DirtyWaterWatch rules; 2026 to date.
- Discharge or advisory reported
- Incomplete source coverage
3 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Year | Hours with a discharge or advisory status | Share of the year | Coverage |
|---|---|---|---|
| 2025 | 7 | 0.1% | Incomplete source coverage |
| 2026 | 4 | 0.1% |
Reported discharges by calendar month, all years
Every counted discharge report, by the calendar month it began.
Months are summed over every year a tracked source covers; the table gives the number of years behind each month.
Source: va-deq-prep. Records cover January 1, 2025 to November 3, 2026.
Show table
| Month | Reported discharges | Years of records |
|---|---|---|
| January | 0 | 2 |
| February | 1 | 2 |
| March | 0 | 2 |
| April | 0 | 2 |
| May | 1 | 2 |
| June | 0 | 2 |
| July | 0 | 2 |
| August | 0 | 2 |
| September | 0 | 2 |
| October | 3 | 2 |
| November | 2 | 2 |
| December | 0 | 1 |
How these charts are counted
We count each discharge once. Where a source publishes notices and confirmed reports, we use confirmed reports for an operator's month when available; otherwise we use notices. We combine revisions and exclude duplicate state reports copied by the U.S. Environmental Protection Agency (EPA). Monthly and yearly totals appear separately. Status hours follow this site's rules. Shaded gaps mean missing coverage, not zero discharges.
- va-deq-prep: records from January 1, 2025 to the latest update
Reports linked to Bull Run
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.
| When | Report | Status |
|---|---|---|
| Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · SSO · volume not reported report · notice · map | to Nov 14, 8:57 AM | |
| to 3:30 PM | Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · SSO · 2,000 gallons report · notice · map | ended |
| Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · Report · volume not reported report · notice · map | ended | |
| Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · Report · 500 gallons report · notice · map | ended | |
| to 1:00 PM | Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · SSO · 3,000 gallons report · notice · map | ended |
| to 2:30 PM | Virginia DEQ Pollution Response Program (PReP), Northern Regional Office · SSO · 900 gallons report · notice · map | ended |
Sources: Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, retrieved 2026-11-03 13:25 UTC. A report's record id and times show when you hover or focus its "report" link.
All reports in Virginia by year: 2026 (2 here) · 2025 (4 here)
Wastewater outlets on this water
Outfall: a pipe or outlet where wastewater enters a water body.
No wastewater outlet in our records is linked to this water.
Boat launches
No public boat launch is listed in our records for this water.
Nearby waters
- Cub Run, VA No current status shown about 6 km away
- Flatlick Branch, VA No current status shown about 9 km away
- Big Rocky Run, VA No current status shown about 9 km away
- Russia Branch, VA No current status shown about 10 km away
- Rocky Branch, VA No current status shown about 10 km away
Sources covering this water
- Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related · Latest check succeeded · Last successful check: 2026-11-03 13:25 UTC
6 records linked to this water. Updated .