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Sanitary sewer overflow (SSO) reported — Town of Christiansburg WWTF, Jul 12, 2026

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

Source: Virginia DEQ Pollution Response Program (PReP), Blue Ridge Regional Office via Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, record 324384, reported Jul 14, 2026, 8:03 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: Town of Christiansburg WWTF (federal wastewater discharge permit, NPDES, VA0061751). Outlet: not stated. Location: 37.13483, -80.34691; 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: “Falling Branch”. 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
18,000 gallons (not stated whether estimated or measured)
Volume as reported
“18,000 gallons”

Advice from Virginia DEQ Pollution Response Program (PReP), Blue Ridge 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
324384
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:324384
Source identifierva-deq-prep
Source record number324384
Earlier versionNot provided
TypeSanitary sewer overflow (SSO)
Status in the reportEnded (as reported)
Sewer operator identifierva-christiansburg
Sewer operatorTown of Christiansburg WWTF
Federal wastewater discharge permit (NPDES)VA0061751
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportFalling Branch
Linked watersNot provided
How this report was linked to the waternot linked to a mapped water
Latitude37.135
Longitude-80.347
Location sourcegeocoded from an address or place name
Location accuracy, in metresNot provided
StartedJul 12, 2026, 3:00 PM EDT (2026-07-12T15:00:00-04:00)
EndedJul 12, 2026, 5:00 PM EDT (2026-07-12T17:00:00-04:00)
Detail provided by the sourceto the minute
Reported to the sourceJul 14, 2026, 8:03 AM EDT (2026-07-14T08:03:00-04:00)
PublishedNot provided
Source last updatedJul 14, 2026, 10:14 AM EDT (2026-07-14T10:14:18-04:00)
Last retrieved by DirtyWaterWatchNov 2, 2026, 9:40 PM EST (2026-11-03T02:40:36Z)
Materialuntreated sewage
Volume, in gallons18,000
Volume as reported18,000 gallons
How volume was determinednot stated whether estimated or measured
AuthorityVirginia DEQ Pollution Response Program (PReP), Blue Ridge Regional Office
AdviceNot provided
Advice period, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://portal.deq.virginia.gov/v2/prep/prepReport/324384

Original source data

{
  "report": {
    "id": "324384",
    "via": "api",
    "incident": "2026-07-12T15:00:00",
    "incident_end": null,
    "received": "2026-07-14T08:03:00",
    "closed": "2026-07-14T10:14:18",
    "modified": "2026-07-14T10:14:18",
    "date_unknown": false,
    "site_name": "SSO - Town of Christiansburg",
    "address": "832 Tower Rd",
    "city": "Christiansburg",
    "zip": "24073",
    "county_city": "Montgomery County",
    "region": "Blue Ridge",
    "status_text": "Closed",
    "categories": [
      "Risk Tier Referred",
      "Sanitary Sewer Overflow"
    ],
    "waterbody": "Falling Branch",
    "other_waterbody": null,
    "original_waterbody": "Falling Branch",
    "water_threatened": "Y",
    "low": 18000,
    "high": 18000,
    "unit": "Gallons",
    "ssors": null,
    "nrc": [],
    "vdem": null,
    "epa": null,
    "facility_name": "Christiansburg Town WWTP",
    "facility_permitted": "Y",
    "responsible_company": "Town of Christiansburg",
    "still_occurring": "N"
  },
  "text": {
    "incident_comment": "- Tower Rd PS overflow to Falling Branch, due to excessive rainfall and mechanical issues, issues corrected",
    "location_comment": "832 Tower Rd",
    "closure_comment": "Permitted facility, 5 day letter received"
  },
  "sewage": [
    {
      "duration_h": 2,
      "component": "Pump Station",
      "component_id": 11,
      "volume_gal": 18000,
      "volume_unknown": "N",
      "wet_weather": "Y",
      "treated": "N",
      "precipitation_in": null,
      "causes": [
        "High Levels of Inflow and/or Infiltration",
        "Pump Station"
      ],
      "impacts": [
        "Discharge to State Waters"
      ],
      "corrective_action": null,
      "steps_taken": null,
      "component_comment": null,
      "other_cause": null
    }
  ],
  "status_log": [
    {
      "at": "2026-07-14T00:00:00",
      "type": "5-Day Letter"
    },
    {
      "at": "2026-07-14T10:10:32",
      "type": "Call Received"
    },
    {
      "at": "2026-07-14T10:10:39",
      "type": "Under Investigation"
    },
    {
      "at": "2026-07-14T10:10:39",
      "type": "Assigned"
    },
    {
      "at": "2026-07-14T10:14:18",
      "type": "Closed Call/IR"
    }
  ],
  "created_in_prep": "2026-07-14T10:10:32",
  "event_type_basis": "DEQ category Sanitary Sewer Overflow",
  "permit": {
    "typed_permit": "VA0061751",
    "deq_vpdes_links": [
      "VA0061751"
    ],
    "ms4": null,
    "ms4_links": null,
    "basis": "DEQ's VPDES link on the report"
  },
  "discharger_match": {
    "by_permit": "va-christiansburg",
    "by_name": [
      "va-christiansburg"
    ],
    "result": "by permit"
  },
  "volume_basis": "sewage report discharge volume (gallons)",
  "_ended_at_basis": "incident time + duration 2 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": "Falling Branch",
    "towns": [
      "Christiansburg",
      "Montgomery County"
    ],
    "notes": null,
    "echo_outfall": null
  },
  "point": {
    "lat": 37.134834,
    "lon": -80.346913,
    "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": "2026-07-12T15:00:00-04:00",
    "edma_received": "2026-07-14T08:03:00-04:00"
  },
  "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/324384?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), Blue Ridge Regional Office via Virginia DEQ Pollution Response Program (PReP) pollution reports, sewage-related, record 324384, reported Jul 14, 2026, 8:03 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.