FRS Facility Detail Report


SOMERSWORTH WASTEWATER TREATMENT PLANT

EPA Registry Id: 110020142987
99 BUFFUMSVILLE RD
SOMERSWORTH, NH 03878


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
ICIS-AIR (AIR)
SOMERSWORTH, CITY OF - WASTEWATER POLLUTION CONTROL FACILITY NH0000003301790287 AIR MINOR ICIS 06/07/2016
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH WASTEWATER TREATMENT FACILITY UPGRADES NHR1000ZN ICIS-NPDES NON-MAJOR ICIS 05/25/2020
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
SOMERSWORTH WASTE WATER TREATMENT PLANT NHNOE3163 STORM WATER INDUSTRIAL ICIS 09/13/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
SOMERSWORTH W P C F NHL100277 BIOSOLIDS ICIS

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH NHG58A006 ICIS-NPDES NON-MAJOR ICIS 04/12/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH NH0100277 NPDES PRETREATMENT PROGRAM ICIS 10/04/2007 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
SOMERSWORTH WASTE WATER TREATMENT PLANT NHNOE3163 ICIS-NPDES NON-MAJOR ICIS 09/13/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH NHG58A006 POTW ICIS 04/12/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH NH0100277 POTW ICIS 10/04/2007 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH WASTEWATER TREATMENT FACILITY UPGRADES NHR1000ZN STORM WATER CONSTRUCTION ICIS 05/25/2020
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
SOMERSWORTH W P C F NHL100277 ICIS-NPDES NON-MAJOR ICIS

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CITY OF SOMERSWORTH NH0100277 ICIS-NPDES MAJOR ICIS 10/04/2007 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
SOMERSWORTH NH W W T P NHG070030 ICIS-NPDES NON-MAJOR ICIS

AIR FACILITY SYSTEM
SOMERSWORTH WASTEWATER TREATMENT PLANT 3301790287 AIR MINOR (OPERATING) AIRS/AFS 12/03/2013
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
SOMERSWORTH WWTP CITY OF NHD510067671 UNSPECIFIED UNIVERSE (N) RCRAINFO

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
NPDES
4952
SEWERAGE SYSTEMS

AIR
OWNE



AIRS/AFS
4952
SEWERAGE SYSTEMS

AIRS/AFS
OWNE



NPDES
4952
SEWERAGE SYSTEMS

AIR
4952
SEWERAGE SYSTEMS

Facility Codes and Flags

EPA Region: 01
Duns Number:
Congressional District Number: 01
Legislative District Number:
HUC Code/Watershed: 01060003 / PISCATAQUA-SALMON FALLS
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
CITY OF SOMERSWORTH NPDES
SOMERSWORTH NH W W T P PCS
SOMERSWORTH WWTP CITY OF RCRAINFO
CITY OF SOMERSWORTH WATER POLLUTION CONTROL FACILITY PCS
SOMERSWORTH, CITY OF - WASTEWATER POLLUTION CONTROL FACILITY AIR
SOMERSWORTH, CITY OF - WASTEWATER POLLUT AIRS/AFS
SOMERSWORTH WASTE WATER TREATMENT PLANT NPDES

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OWNER
CITY OF SOMERSWORTH
NPDES
View
MAILING ADDRESS
CITY OF SOMERSWORTH
NPDES


OPERATOR
CITY OF SOMERSWORTH
NPDES
View
OPERATOR
PENTA CORP
NPDES
View
OWNER
CITY OF SOMERSWORTH
NPDES


MAILING ADDRESS
SOMERSWORTH NH W W T P
NPDES
View
MAILING ADDRESS
SOMERSWORTH W P C F
NPDES
View
PERMITTEE
SJ CANTWELL, INC.
NPDES
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIRS/AFS 221320 SEWAGE TREATMENT FACILITIES.
AIR 221320 SEWAGE TREATMENT FACILITIES.
NPDES 221320 SEWAGE TREATMENT FACILITIES.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
OWNER 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 NPDES
PERMITTEE 44 PORTLAND AVENUE DOVER NH 03820 NPDES
REGULATORY CONTACT 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 RCRAINFO
OPERATOR 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 NPDES
FACILITY MAILING ADDRESS 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 RCRAINFO
MAILING ADDRESS 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 NPDES
MAILING ADDRESS 99 BUFFUMSVILLE RD SOMERSWORTH NH 03878 NPDES
OPERATOR ROUTE 25 MOULTONBORO NH 03254 NPDES

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OPERATOR
MADELINE DARR
6033434600
NPDES


Query executed on: OCT-15-2025