FRS Facility Detail Report


UPPER POTOMAC RIVER COMM STP

EPA Registry Id: 110000732887
528 MARYLAND AVENUE
WESTERNPORT, MD 21562-1417


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:
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
UPPER POTOMAC RIVER COMMISSION MDD069393767 UNSPECIFIED UNIVERSE (N) RCRAINFO

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
UPPER POTOMAC RIVER COMM STP MD0021687 ICIS-NPDES MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
MARYLAND - ENVIRONMENTAL PERMIT SERVICE CENTER
UPPER POTOMAC RIVER COMMISSION 4543 STATE MASTER MD-EPSC
-
NPDES MAJOR
-
SEWAGE SLUDGE UTILIZATION
-
OIL CONTROL
AIR FACILITY SYSTEM
WESTERNPORT WWTP 2400100239 AIR MINOR (OPERATING) AIRS/AFS 08/27/2014 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
UPPER POTOMAC RIVER COMMISSION WWTP MDR003213 ICIS-NPDES NON-MAJOR ICIS 01/23/2024
MARYLAND - TOOLS FOR ENVIRONMENTAL MANAGEMENT AND PROTECTION ORGANIZATIONS (TEMPO)
UPRC - WESTERNPORT WWTP 3365 STATE MASTER MD-TEMPO
MDE_TEMPO-001-00239

EMISSION INVENTORY SYSTEM (EIS)
WESTERNPORT W WTP 5989111 CRITERIA AIR POLLUTANT MAJOR EIS 01/05/2023
MARYLAND-RESOURCE CONVERSATION AND RECOVERY ACT DATABASE
UPPER POTOMAC RIVER COMMISSION 3365 STATE MASTER MD-RCRA
-MDD069393767
HAZARDOUS WASTE PROGRAM
MARYLAND - PERMANENT (AIR) EMISSION
WESTERNPORT WASTEWATER TREATMENT PLT 001-0239 STATE MASTER MD-PEMIS
-
AIR MAJOR
ICIS-AIR (AIR)
WESTERNPORT WWTP MD0000002400100239 AIR MINOR ICIS 10/19/2014

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
AIRS/AFS
OWNE



NPDES
4952
SEWERAGE SYSTEMS

NPDES
4952
SEWERAGE SYSTEMS

MD-PEMIS
4953
REFUSE SYSTEMS

AIR
OWNE



AIR
4952
SEWERAGE SYSTEMS

MD-TEMPO
4952
SEWERAGE SYSTEMS

NPDES
2621
PAPER MILLS

AIRS/AFS
4952
SEWERAGE SYSTEMS

MD-EPSC
2621
PAPER MILLS

MD-TEMPO
UNK



Facility Codes and Flags

EPA Region: 03
Duns Number:
Congressional District Number: 06
Legislative District Number:
HUC Code/Watershed: 02070002 / NORTH BRANCH POTOMAC
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
UPRC-WESTERNPORT AIR
WESTERNPORT WASTEWATER TREATMENT PLT MD-PEMIS
WESTERNPORT WWTP MD-EPSC
UPPER POTOMAC RIVER COMMISSION MD-EPSC

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OWNER
UPPER POTOMAC RIVER COMMISSION
MD-TEMPO
View
ORGANIZATION
UPPER POTOMAC RIVER COMMISSION
MD-TEMPO
View
MAILING ADDRESS
UPPER POTOMAC RIVER COMM STP
NPDES
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIRS/AFS 221320 SEWAGE TREATMENT FACILITIES.
MD-TEMPO 221320 SEWAGE TREATMENT FACILITIES.
EIS 221320 SEWAGE TREATMENT FACILITIES.
AIR 221320 SEWAGE TREATMENT FACILITIES.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 528 MARYLAND AVENUE WESTERNPORT MD 21562 AIR
GENERAL CONTACT 528 MARYLAND AVE WESTERNPORT MD 21562 MD-TEMPO
MAILING ADDRESS 528 MARYLAND AVENUE WESTERNPORT MD 21562 NPDES
OWNER 528 MARYLAND AVE WESTERNPORT MD 21562 MD-TEMPO
INDIVIDUAL 528 MARYLAND AVE WESTERNPORT MD 21562 MD-TEMPO
GENERAL CONTACT UPPER POTOMAC RIVER COMM WESTERNPORT MD 21562 MD-TEMPO
GENERAL CONTACT 528 MARYLAND AVENUE WESTERNPORT MD 21562 MD-TEMPO
FACILITY MAILING ADDRESS 528 MARYLAND AVENUE WESTERNPORT MD 21562 AIRS/AFS
ORGANIZATION 528 MARYLAND AVE WESTERNPORT MD 21562 MD-TEMPO
INDIVIDUAL 528 MARYLAND AVENUE WESTERNPORT MD 21562 MD-TEMPO
GENERAL CONTACT /// Z-OIMT ONLY ZZ 00000 MD-TEMPO
OWNER 528 MARYLAND AVENUE WESTERNPORT 21562 MD-EPSC
INDIVIDUAL UPPER POTOMAC RIVER COMM WESTERNPORT MD 21562 MD-TEMPO
FACILITY MAILING ADDRESS 528 MARYLAND AVE WESTERNPORT MD 21562 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OWNER
WESTERNPORT WASTEWATER TREATMENT PLT
301-359-3944
MD-PEMIS


INDIVIDUAL
GEORGE. S SHOEMAKER
301.359.3944
MD-TEMPO
View
INDIVIDUAL
JOHN J MULLEN


MD-TEMPO
View
INDIVIDUAL
GEORGE. S SHOEMAKER
301.268.7054
MD-TEMPO
View
INDIVIDUAL
RODNEY MANGOLD
301-359-3944
MD-TEMPO
View
GENERAL CONTACT
SCOTT SHOEMAKER
301-359-3944
MD-TEMPO
View
GENERAL CONTACT
RIYAZ KAZI


MD-TEMPO
View
GENERAL CONTACT
SCOTT SHOEMAKER
301-359-3944
MD-TEMPO
View
UNKNOWN CONTACT
SCOTT SHUMAKER
3012687054
NPDES


INDIVIDUAL
RODNEY MANGOLD
301-359-3944
MD-TEMPO
View
GENERAL CONTACT
RODNEY MANGOLD
301-359-3944
MD-TEMPO
View
INDIVIDUAL
SCOTT SHOEMAKER
301-359-3944
MD-TEMPO
View
OWNER
UPPER POTOMAC RIVER COMMISSION
301-359-3944
MD-EPSC
View
GENERAL CONTACT
JOHN J MULLEN


MD-TEMPO
View
GENERAL CONTACT
GEORGE. S SHOEMAKER
301.359.3944
MD-TEMPO
View

Query executed on: OCT-14-2025