Bypass, Dec 27, 2022

Not stated by the source · EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators)

Source: EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record NH0100765:1:1, reported Dec 28, 2022, 7:00 PM EST, retrieved 2026-11-02 11:54 UTC · notice

Caution on Connecticut River: Discharge record with no status and no reported end, until Nov 13, 2026, 12:00 AM EST unless a new report changes it.

Why this colour: Caution: site default, 72 hours after the discharge ended. Rationale: Partially treated or untreated flow around a plant. (source: research/science/report.md 2.8) How long a water stays coloured, and why

A report is not a test of the water. See how statuses are worked out.

1. The reported outfall

Outfall reported by an operator the record does not name (NH0100765). Location: 43.22579, -72.43252, given in the source record.

2. Waters named in the notice

The notice names: “Conncecticut River”. We place it on Connecticut River, NH. Matched by the name of the water in the source record.

3. Modeled downstream reach

No modeled reach for this record in this build.

Source: water outlines from OpenBoatLaunch and OpenStreetMap contributors (ODbL); outfalls from EPA ECHO and the state outfall layers; modeled reaches computed by DirtyWaterWatch from USGS NLDI, NHDPlus and the nearest USGS gauge (Jobson 1996); basemap OpenFreeMap and OpenMapTiles.

Open on the main map

When: three different times

The time of the event, the time the source reported, published or updated it, and the time we fetched it are kept apart. Times are shown in New England time; the record keeps the original offsets.

Started: Dec 27, 2022, 6:00 AM EST
Ended: not reported
Precision: Known to the minute
Reported to the source: Dec 28, 2022, 7:00 PM EST
Published: Oct 29, 2026, 8:00 PM EDT
Source last updated: Oct 30, 2026, 7:11 AM EDT
We fetched it: 2026-11-02 11:54 UTC

What and how much

Type: Bypass
Status in the record: Not stated by the source
Material: “wastewater diverted around part of the treatment process”
Volume: not reported (measured or verified)
Volume in the source's words: none

Advice

The record carries no advice text from EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators).

Advice window: not stated in the record; the state's window on the methods page applies
Basis: not stated

What it does to the map, over time

Caution Connecticut River: Discharge record with no status and no reported end, Dec 27, 2022, 6:00 AM EST to Nov 13, 2026, 12:00 AM EST
Unresolved: no end reported Connecticut River: Unresolved: no end reported, Nov 13, 2026, 12:00 AM EST to Nov 29, 2026, 12:00 AM EST

Source: intervals computed by DirtyWaterWatch (build/status.py) from this record and the rules on the methods page, as of 2026-11-02 11:56 UTC.

Source and revisions

Source: ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions)
Record id at the source: NH0100765:1:1
Original notice: https://echo.epa.gov/detailed-facility-report?fid=NH0100765&sys=ICP
Revision of: none (first record)
Revised by: no later revision

Every field of the record

All fields of event echo-sewer-overflow:NH0100765:1:1
`event_id`	echo-sewer-overflow:NH0100765:1:1
`source_id`	echo-sewer-overflow
`source_record_id`	NH0100765:1:1
`parent_event_id`	null
`event_type`	bypass
`status`	unknown
`discharger_id`	null
`discharger_name`	null
`npdes_permit`	NH0100765
`outfall_id`	null
`outfall_name`	null
`waterbody_text`	Conncecticut River
`water_slugs`	["connecticut-river-nh"]
`water_match`	name
`lat`	43.225795
`lon`	-72.432518
`coord_source`	source
`coord_precision_m`	null
`started_at`	2022-12-27T06:00:00
`ended_at`	null
`time_precision`	minute
`reported_at`	2022-12-29
`published_at`	2026-10-30
`source_updated_at`	2026-10-30T11:11:23Z
`fetched_at`	2026-11-02T11:54:48Z
`material`	wastewater diverted around part of the treatment process
`volume_gal`	null
`volume_text`	null
`estimate_flag`	measured
`authority`	EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators)
`advice_text`	null
`advice_window_hours`	null
`advice_window_basis`	null
`source_url`	https://echo.epa.gov/detailed-facility-report?fid=NH0100765&sys=ICP
`parse_error`	null
`fixture`	false
`file`	events/echo-sewer-overflow~3ANH0100765~3A1~3A1.json
`duplicate_of`	null
`placement_note`	null
`unplaced_reason`	null
`set_aside`	null
`superseded`	null
`reach`	null
`reach_band`	null

The source's record (raw)

{
  "sewer_overflow_bypass_event_key": "2484",
  "permit_identifier": "NH0100765",
  "program_report_form_set_id": "1",
  "program_report_form_id": "1",
  "sewer_overflow_bypass_event_id_ext": "1",
  "program_report_received_date": "2022-12-29",
  "program_report_start_date": "2022-12-27",
  "program_report_end_date": "2023-01-25",
  "electronic_submission_type_code": "ES1",
  "electr_submission_type_desc": "EPA electronic reporting system",
  "program_report_npdes_data_group_number_code": "G9A",
  "program_report_npdes_data_group_desc": "Sewer Overflow/Bypass Event Report ",
  "payload_id": "278576866",
  "transaction_type": "N",
  "sewer_overflow_bypass_description_text": "by-pass secondary lagoon",
  "sewer_overflow_bypass_reporting_requirement_code": "1",
  "sewer_overflow_reporting_requirement_desc": "5-day reporting for noncompliance that may endanger health or the environment",
  "wet_weather_occurance_indicator": "N",
  "latitude_measure": "43.225795",
  "longitude_measure": "-72.432518",
  "sewer_overflow_bypass_start_datetime": "2022-12-27 06:00:00",
  "discharge_quantification_method_code": "ARM",
  "discharge_quantification_method_desc": "Automated Remote Monitoring",
  "sewer_overflow_bypass_discharge_rate_gph": "1700.00",
  "event_transaction_type": "N",
  "types": [
    "Bypass Event"
  ],
  "receiving_waters": [
    "Conncecticut River"
  ],
  "impacts": [
    {
      "code": "NOI",
      "desc": "No observable impacts",
      "other": null
    }
  ],
  "causes": [
    {
      "code": "OTN",
      "desc": "Other Cause at Treatment Plant - Not Elsewhere Specified",
      "other": "broken cross-over pipe repair"
    }
  ],
  "corrective_actions": [
    {
      "code": "FBP",
      "desc": "Fix Broken Pipe",
      "other": null
    }
  ],
  "treatment": [
    {
      "code": null,
      "desc": null,
      "bypassed_equipment": "Secondary treatment equipment"
    }
  ],
  "collection_system_name": null,
  "percent_collection_system_css": null,
  "reached_water_rule": "receiving water named",
  "timezone_note": "ECHO gives event times without a timezone; recorded as given (presumably local time)",
  "report_version": "1"
}

Personal fields (names, emails, phone numbers of staff) are removed from raw records before they are stored.