Sanitary sewer overflow (SSO) reported, Sep 12, 2026

Record details

Original source data

{
  "report": {
    "id": "325298",
    "via": "api",
    "incident": "2026-09-12T09:00:00",
    "incident_end": null,
    "received": "2026-09-12T12:40:00",
    "closed": "2026-10-01T13:25:20",
    "modified": "2026-10-13T16:58:44",
    "date_unknown": false,
    "site_name": "SSO -  Naval Support Facility - Dahlgren",
    "address": "18329 Thompson Rd",
    "city": "Dahlgren",
    "zip": null,
    "county_city": "King George County",
    "region": "Northern",
    "status_text": "Closed",
    "categories": [
      "Sanitary Sewer Overflow",
      "Risk Tier Referred"
    ],
    "waterbody": null,
    "other_waterbody": null,
    "original_waterbody": null,
    "water_threatened": "N",
    "low": 1,
    "high": -1,
    "unit": null,
    "ssors": null,
    "nrc": [],
    "vdem": "2026-09-12-0053 SWAN",
    "epa": null,
    "facility_name": null,
    "facility_permitted": "N",
    "responsible_company": "Dahlgren WWTP",
    "still_occurring": "N"
  },
  "text": {
    "incident_comment": "On September 12, 2026, at 9 hours, an overflow was discovered at Lift Station #7. The incident was triggered by an excessive water discharge from the Building 1705 cooling tower, which caused one lift station pump to burn out and trip the breaker, disabling the back-up pump. Containment and remediation with lime were successfully completed by 10:15 hours on the same day.\nA faulty liquid level sensor was determined as the cause for excessive amounts of cooling tower water being sent to the lift station. The sensor and back-up pump were replaced.\n\nSteps Taken to Prevent Recurrence:\n1.\tInstalled new liquid level sensor and solenoid valve.\n2.\tReplaced back-up pump in Lift Station #7 on September 15, 2026.\n\n\nOn September 16, 2026, a 5-day letter was sent to the WC manager and the document satisfied the requirement to report of unauthorized discharge. No further action required. The IR was closed.",
    "location_comment": "Dahlgren Naval Base pump station #8",
    "closure_comment": "On September 16, 2026, a 5-day letter was sent to the WC manager and the document satisfied the requirement to report of unauthoorized discharge. No further action required."
  },
  "sewage": [],
  "status_log": [
    {
      "at": "2026-09-12T00:00:00",
      "type": "Other Correspondence/Reports"
    },
    {
      "at": "2026-09-12T00:00:00",
      "type": "Phone Call"
    },
    {
      "at": "2026-09-14T10:01:53",
      "type": "Call Received"
    },
    {
      "at": "2026-09-14T10:11:05",
      "type": "Under Investigation"
    },
    {
      "at": "2026-09-14T10:11:05",
      "type": "Assigned"
    },
    {
      "at": "2026-09-14T10:11:19",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-09-14T10:11:35",
      "type": "Program Participant Assigned"
    },
    {
      "at": "2026-09-22T10:45:43",
      "type": "Closed Call/IR"
    },
    {
      "at": "2026-10-01T13:14:14",
      "type": "Reopened"
    },
    {
      "at": "2026-10-01T13:25:20",
      "type": "Closed Call/IR"
    }
  ],
  "created_in_prep": "2026-09-14T10:01:53",
  "event_type_basis": "DEQ category Sanitary Sewer Overflow",
  "permit": {
    "typed_permit": null,
    "deq_vpdes_links": [
      "VA0021067"
    ],
    "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": null,
    "towns": [
      "Dahlgren",
      "King George County"
    ],
    "notes": null,
    "echo_outfall": null
  },
  "point": {
    "lat": 38.324148,
    "lon": -77.028319,
    "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": "2026-09-12T09:00:00-04:00",
    "edma_received": "2026-09-12T12:40:00-04:00"
  },
  "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/325298?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 325298, reported Sep 12, 2026, 12:40 PM EDT, retrieved 2026-11-03 02:40 UTC · Read the original notice

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