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Treatment plant bypass reported — Town of Exeter WWTP, Jun 25, 2026

Ended (as reported) · Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page)

Source: Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2026-06-25:1, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Read the original notice

Current status from this report

This report does not set a map status as of Nov 2, 2026, 10:57 AM 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 Exeter WWTP (federal wastewater discharge permit, NPDES, NH0100871). Outlet: 001 “WWTP outfall 001”. Location: not given in the report or in the outlet records.

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

2. Waters named in the notice

The notice names no water. DirtyWaterWatch links this report to Squamscott River, NH. Match basis: the operator's listed receiving water; the report itself does not name the water.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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
not given
Published
not given
Source last updated
not given
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
“non-disinfected treated effluent”
Volume
340 gallons (not stated whether estimated or measured)
Volume as reported
“340 gallons”

Advice from Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page)

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
History of CSO Occurrences PDF
Source record number
exeter:bypass:2026-06-25:1
Original notice
Read the original notice
Earlier version
None: this is the first record
Later versions
None

Record details

Record details
Record identifiernh-permittees:exeter:bypass:2026-06-25:1
Source identifiernh-permittees
Source record numberexeter:bypass:2026-06-25:1
Earlier versionNot provided
TypeTreatment plant bypass
Status in the reportEnded (as reported)
Sewer operator identifiernh-exeter-wwtp-bypass
Sewer operatorTown of Exeter WWTP
Federal wastewater discharge permit (NPDES)NH0100871
Outlet number001
Outlet nameWWTP outfall 001
Water named in the reportNot provided
Linked waterssquamscott-river-nh
How this report was linked to the waterthe operator's listed receiving water; the report itself does not name the water
LatitudeNot provided
LongitudeNot provided
Location sourceNot provided
Location accuracy, in metresNot provided
StartedJun 25, 2026, 1:38 AM EDT (2026-06-25T01:38:00-04:00)
EndedJun 25, 2026, 1:43 AM EDT (2026-06-25T01:43:00-04:00)
Detail provided by the sourceto the minute
Reported to the sourceNot provided
PublishedNot provided
Source last updatedNot provided
Last retrieved by DirtyWaterWatchNov 2, 2026, 10:54 AM EST (2026-11-02T15:54:55Z)
Materialnon-disinfected treated effluent
Volume, in gallons340
Volume as reported340 gallons
How volume was determinednot stated whether estimated or measured
AuthorityTown of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page)
AdviceNot provided
Advice period, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://www.exeternh.gov/publicworks/combined-sewer-sanitary-sewer-overflows

Original source data

{
  "section": "Non-disinfected Discharge",
  "text": "June 25, 2026 - Due to an unexpected power outage at approximately 1:38 am, for a duration of 5 minutes, there was a non-disinfected discharge of 340 gallons from outfall 001."
}

Source: Town of Exeter DPW (Combined Sewer & Sanitary Sewer Overflows page) via History of CSO Occurrences PDF, record exeter:bypass:2026-06-25:1, the source gives no report time, retrieved 2026-11-02 15:54 UTC · Read the original notice

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