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Treatment bypass reported, May 10, 2026

Ended (as reported) · Virginia DEQ Pollution Response Program (PReP), Northern Regional Office

Source: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office via Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, record 323478, reported May 10, 2026, 4:23 PM EDT, retrieved 2026-11-03 02:40 UTC · Read the original notice

Current status from this report

This report does not set a map status as of Nov 2, 2026, 9:43 PM EST. Check its dates and the status rules.

A report is not a test of the water. See how we assign statuses.

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1. Reported wastewater outlet

Operator named in the record: not named (federal wastewater discharge permit, NPDES, VA0074942). Outlet: not stated. Location: 39.21393, -77.53628; location source: geocoded from an address or place name.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names: “Limestone Branch; UT of Limestone Brach (outfall 001)”. Not linked to a mapped water.

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

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.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started
Ended
not reported
Detail provided by the source
Times known to the minute
Reported to the source
Published
not given
Source last updated
Last retrieved by DirtyWaterWatch

What and how much

Type
Treatment bypass: wastewater skips one or more treatment steps.
Status in the record
Ended (as reported)
Material
“sewage (reported as treated or partly treated)”
Volume
volume not reported (not stated whether estimated or measured)
Volume as reported
none

Advice from Virginia DEQ Pollution Response Program (PReP), Northern Regional Office

This report includes no advice. Check current local health notices.

Advice period
This report does not state a period. See the rule DirtyWaterWatch applies and its source.
Basis
not stated

Source and versions

Source
Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related
Source record number
323478
Original notice
Read the original notice
Earlier version
None: this is the first record
Later versions
None

Record details

Record details
Record identifierva-deq-prep:323478
Source identifierva-deq-prep
Source record number323478
Earlier versionNot provided
TypeTreatment bypass
Status in the reportEnded (as reported)
Sewer operator identifierNot provided
Sewer operatorNot provided
Federal wastewater discharge permit (NPDES)VA0074942
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportLimestone Branch; UT of Limestone Brach (outfall 001)
Linked watersNot provided
How this report was linked to the waternot linked to a mapped water
Latitude39.214
Longitude-77.536
Location sourcegeocoded from an address or place name
Location accuracy, in metresNot provided
StartedMay 10, 2026, 4:12 PM EDT (2026-05-10T16:12:28-04:00)
EndedNot provided
Detail provided by the sourceto the minute
Reported to the sourceMay 10, 2026, 4:23 PM EDT (2026-05-10T16:23:56-04:00)
PublishedNot provided
Source last updatedJul 14, 2026, 3:11 PM EDT (2026-07-14T15:11:24-04:00)
Last retrieved by DirtyWaterWatchNov 2, 2026, 9:40 PM EST (2026-11-03T02:40:36Z)
Materialsewage (reported as treated or partly treated)
Volume, in gallonsNot provided
Volume as reportedNot provided
How volume was determinednot stated whether estimated or measured
AuthorityVirginia DEQ Pollution Response Program (PReP), Northern Regional Office
AdviceNot provided
Advice period, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://portal.deq.virginia.gov/v2/prep/prepReport/323478

Original source data

{
  "report": {
    "id": "323478",
    "via": "api",
    "incident": "2026-05-10T16:12:28",
    "incident_end": null,
    "received": "2026-05-10T16:23:56",
    "closed": "2026-05-13T09:44:31",
    "modified": "2026-07-14T15:11:24",
    "date_unknown": false,
    "site_name": "Solids Loss - Hiway MHP WWTP - James Monroe Hwy",
    "address": "14489 James Monroe Hwy",
    "city": "Leesburg",
    "zip": "21078",
    "county_city": "Loudoun County",
    "region": "Northern",
    "status_text": "Closed",
    "categories": [
      "Risk Tier Referred",
      "Unauthorized Discharge of Pollutant(s)"
    ],
    "waterbody": "Limestone Branch",
    "other_waterbody": "UT of Limestone Brach (outfall 001)",
    "original_waterbody": null,
    "water_threatened": "Y",
    "low": 1,
    "high": -1,
    "unit": "Unknown",
    "ssors": null,
    "nrc": [],
    "vdem": null,
    "epa": null,
    "facility_name": "Hiway MHC WWTP",
    "facility_permitted": "Y",
    "responsible_company": null,
    "still_occurring": "N"
  },
  "text": {
    "incident_comment": "5-day letter sent to DEQ staff on 5-12-2026. A vacuum truck was brought onsite and the receving stream was cleaned of solids. This plant is currently in enforcement and is in the process of begining a plant upgrade. No further action requried at this time.",
    "location_comment": "Receiving stream at Hiway WWTP",
    "closure_comment": "5-day letter sent to DEQ staff on 5-12-2026. A vacuum truck was brought onsite and the receving stream was cleaned of solids. This plant is currently in enforcement and is in the process of begining a plant upgrade."
  },
  "sewage": [
    {
      "duration_h": null,
      "component": "Other",
      "component_id": 7,
      "volume_gal": null,
      "volume_unknown": "Y",
      "wet_weather": "N",
      "treated": "Y",
      "precipitation_in": null,
      "causes": [
        "Other"
      ],
      "impacts": [
        "Discharge to State Waters"
      ],
      "corrective_action": "A vacuum truck was brought onsite to remove solids from the receving stream. Photo documentation was sent to DEQ staff on 5-12-2026.",
      "steps_taken": null,
      "component_comment": "Wastewater Treatment Plant",
      "other_cause": null
    }
  ],
  "status_log": [
    {
      "at": "2026-05-10T16:23:55",
      "type": "Call Received"
    },
    {
      "at": "2026-05-10T18:46:54",
      "type": "Under Investigation"
    },
    {
      "at": "2026-05-10T18:46:54",
      "type": "Assigned"
    },
    {
      "at": "2026-05-10T18:47:07",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-05-10T18:47:13",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-05-10T18:47:22",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-05-10T21:23:01",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-05-13T09:44:31",
      "type": "Closed Call/IR"
    }
  ],
  "created_in_prep": "2026-05-10T16:23:55",
  "event_type_basis": "treatment-plant discharge not filed as a sanitary sewer overflow (category: Risk Tier Referred, Unauthorized Discharge of Pollutant(s))",
  "permit": {
    "typed_permit": "VA0074924",
    "deq_vpdes_links": [
      "VA0074942"
    ],
    "ms4": null,
    "ms4_links": null,
    "basis": "DEQ's VPDES link on the report"
  },
  "discharger_match": {
    "by_permit": null,
    "by_name": null
  },
  "volume_basis": null,
  "_ended_at_basis": null,
  "_time_basis": "PReP API times are local wall-clock times with no zone, read as America/New_York. The export table stores local time + 5 h all year (decoded by subtracting 5 h); the EDMA point layer stores local time labelled as UTC (decoded by reading the UTC clock as local).",
  "water_placement": {
    "text": "Limestone Branch; UT of Limestone Brach (outfall 001)",
    "towns": [
      "Leesburg",
      "Loudoun County"
    ],
    "notes": null,
    "echo_outfall": null
  },
  "point": {
    "lat": 39.213929,
    "lon": -77.536284,
    "layer": "DEQ EDMA layer 175 (PReP Reports, Daily)",
    "reference_point": "PG",
    "note": "DEQ's geocode of the report's site address (REFERENCE_POINT 'PG'), not an outfall point",
    "edma_incident": "2026-05-10T16:12:28-04:00",
    "edma_received": "2026-05-10T16:23:56-04:00"
  },
  "attribution": "DEQ is the data source. DEQ does not certify that this data represents a complete record. This data is provided to the citizens of the Commonwealth free of charge and for informational purposes only.",
  "api_url": "https://portal.deq.virginia.gov/prep/api/prepReports/323478?expand=prepStatusCode,prepUnitTypeCode,prepReportSewages.prepComponentTypeCode,prepReportSewages.prepSewageCauses.prepCauseCode,prepReportSewages.prepSewageImpacts.prepImpactTypeCode,prepReportReleaseSubtypes.prepReleaseSubtypeCode,prepReportPermitViews,prepOriginalReport,prepReportEvents.prepEventTypeCode,prepFipsCode.fipsRegion"
}

Source: Virginia DEQ Pollution Response Program (PReP), Northern Regional Office via Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, record 323478, reported May 10, 2026, 4:23 PM EDT, retrieved 2026-11-03 02:40 UTC · Read the original notice

Staff names, email addresses and phone numbers are removed from source data before it is stored.