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Lisbon Wastewater Treatment Facility

636 Bath Rd, Lisbon, NH 03585 · Grafton County · Publicly Owned Treatment Works

Average flow
0.18 MGD
Design flow
0.32 MGD
NPDES permit
NHG580421
Effective
Permit expires
November 2026
Population served
1,669
CWNS 2022

Lisbon Wastewater Treatment Facility is a publicly owned wastewater treatment works in Lisbon, Grafton County, New Hampshire treating an average of 0.18 million gallons per day against a permitted design capacity of 0.32 MGD, serving about 1,669 residents. It discharges under NPDES permit NHG580421 (effective), which expires in November 2026, with 26 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in June 1998.

Treatment technology

One treatment structure or unit process identified at Lisbon Wastewater Treatment Facility.

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Compliance snapshot (last 3 years)

Total violations
26
Effluent violations
1

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for Lisbon Wastewater Treatment Facility in EPA's ICIS system.

Formal actions
3
0 since FY2020
Penalties assessed
$5,000
all cases
EPA inspections
0
none on record

Latest case · Jun 1998

LISBON, TOWN OF

Administrative order · CWA, Information Request, Records, Entry · Final Order With Penalty · Penalty $5,000

Source: EPA ECHO, civil enforcement case 01-1997-0022.

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Every action against Lisbon Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

2 verified contacts for Lisbon Wastewater Treatment Facility, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Lisbon Wastewater Treatment Facility, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in New Hampshire

Woodsville Wastewater Treatment Facility

Haverhill · 7 mi away

0.18 MGD

0.55 MGD

Woodstock WWTF

Woodstock · 17 mi away

0.11 MGD

0.13 MGD

0.68 MGD

Waterville Valley Wastewater Treatment Plant

Waterville Valley · 27 mi away

0.2 MGD

0.0034 MGD

Lisbon Wastewater Treatment Facility: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026; facility record last updated February 8, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms


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