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Sanitary sewer overflow (SSO) reported, Sep 7, 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 325236, reported Sep 8, 2026, 7:53 AM 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. Outlet: not stated. Location: 38.74057, -77.49520; 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 no water. 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
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
Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.
Status in the record
Ended (as reported)
Material
“untreated sewage”
Volume
1,000 gallons (not stated whether estimated or measured)
Volume as reported
“1,000 gallons”

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
325236
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:325236
Source identifierva-deq-prep
Source record number325236
Earlier versionNot provided
TypeSanitary sewer overflow (SSO)
Status in the reportEnded (as reported)
Sewer operator identifierNot provided
Sewer operatorNot provided
Federal wastewater discharge permit (NPDES)Not provided
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportNot provided
Linked watersNot provided
How this report was linked to the waternot linked to a mapped water
Latitude38.741
Longitude-77.495
Location sourcegeocoded from an address or place name
Location accuracy, in metresNot provided
StartedSep 7, 2026, 11:00 AM EDT (2026-09-07T11:00:33-04:00)
EndedSep 7, 2026, 2:00 PM EDT (2026-09-07T14:00:33-04:00)
Detail provided by the sourceto the minute
Reported to the sourceSep 8, 2026, 7:53 AM EDT (2026-09-08T07:53:18-04:00)
PublishedNot provided
Source last updatedSep 8, 2026, 10:47 AM EDT (2026-09-08T10:47:14-04:00)
Last retrieved by DirtyWaterWatchNov 2, 2026, 9:40 PM EST (2026-11-03T02:40:36Z)
Materialuntreated sewage
Volume, in gallons1,000
Volume as reported1,000 gallons
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/325236

Original source data

{
  "report": {
    "id": "325236",
    "via": "api",
    "incident": "2026-09-07T11:00:33",
    "incident_end": null,
    "received": "2026-09-08T07:53:18",
    "closed": "2026-09-08T10:47:14",
    "modified": "2026-09-08T10:47:14",
    "date_unknown": false,
    "site_name": "SSO - Unpermitted - City of Manassas - UOSA",
    "address": "9590 Shannon Lane",
    "city": "Manassas",
    "zip": "20110",
    "county_city": "Manassas City",
    "region": "Northern",
    "status_text": "Closed",
    "categories": [
      "Sanitary Sewer Overflow",
      "Risk Tier 1"
    ],
    "waterbody": null,
    "other_waterbody": null,
    "original_waterbody": null,
    "water_threatened": "N",
    "low": null,
    "high": null,
    "unit": null,
    "ssors": null,
    "nrc": [],
    "vdem": null,
    "epa": null,
    "facility_name": null,
    "facility_permitted": "N",
    "responsible_company": "City of Manassas",
    "still_occurring": "N"
  },
  "text": {
    "incident_comment": "DEQ received an online pollution report for a SSO (sanitary sewer overflow) in the City of Manassas (unpermitted - UOSA). City staff removed the blockage and restored flow. An estimated 1,000 gallons of untreated wastewater was released to a grassy area adjacent to the manhole. 5-day report received and requirements met. Sewage did not impact a storm drain or surface water. No additional DEQ action necessary.",
    "location_comment": "Easement behind 9590 Shannon Lane",
    "closure_comment": null
  },
  "sewage": [
    {
      "duration_h": 3,
      "component": "Manhole",
      "component_id": 1,
      "volume_gal": 1000,
      "volume_unknown": null,
      "wet_weather": "N",
      "treated": "N",
      "precipitation_in": null,
      "causes": [
        "Blockage"
      ],
      "impacts": [
        "Sewage on Land Surface with Potential Human Exposure"
      ],
      "corrective_action": "blockage due to FOG\nblockage removed - flow restored\narea around manhole limed",
      "steps_taken": null,
      "component_comment": null,
      "other_cause": null
    }
  ],
  "status_log": [
    {
      "at": "2026-09-08T00:00:00",
      "type": "Other Correspondence/Reports"
    },
    {
      "at": "2026-09-08T07:53:19",
      "type": "Call Received"
    },
    {
      "at": "2026-09-08T09:38:56",
      "type": "Assigned"
    },
    {
      "at": "2026-09-08T09:38:56",
      "type": "Under Investigation"
    },
    {
      "at": "2026-09-08T10:47:14",
      "type": "Closed Call/IR"
    },
    {
      "at": "2026-09-08T10:47:57",
      "type": "Program Participant Assigned"
    }
  ],
  "created_in_prep": "2026-09-08T07:53:19",
  "event_type_basis": "DEQ category Sanitary Sewer Overflow",
  "permit": {
    "typed_permit": null,
    "deq_vpdes_links": null,
    "ms4": null,
    "ms4_links": null,
    "basis": "none"
  },
  "discharger_match": {
    "by_permit": null,
    "by_name": null
  },
  "volume_basis": "sewage report discharge volume (gallons)",
  "_ended_at_basis": "incident time + duration 3 h (sewage report)",
  "_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": null,
    "towns": [
      "Manassas",
      "Manassas City"
    ],
    "notes": null,
    "echo_outfall": null
  },
  "point": {
    "lat": 38.740574,
    "lon": -77.4952,
    "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": "2026-09-07T11:00:33-04:00",
    "edma_received": "2026-09-08T07:53:18-04:00"
  },
  "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/325236?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 325236, reported Sep 8, 2026, 7:53 AM 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.