FRS Facility Detail Report


MATTAWOMAN WASTEWATER TREATMENT PLANT

EPA Registry Id: 110000572817
5310 HAWTHORNE RD
LA PLATA, MD 20646-5745


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:
AIR FACILITY SYSTEM
MATTAWOMAN WWTP/BIO GRO 2401700101 AIR MINOR (OPERATING) AIRS/AFS 07/19/1999
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WWTP MDL021865 ICIS-NPDES NON-MAJOR ICIS 01/01/2021
MARYLAND - PERMANENT (AIR) EMISSION
MATTAWOMAN WWTP/BIO GRO 017-0101 STATE MASTER MD-PEMIS
-
AIR MINOR
MARYLAND - ENVIRONMENTAL PERMIT SERVICE CENTER
MATTAWOMAN WATER POLLUTION CONTROL FACILITY 3761 STATE MASTER MD-EPSC
-
SEWAGE SLUDGE UTILIZATION
-
NPDES MAJOR
-
NPDES STORMWATER PERMIT
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WWTP MD0021865 POTW ICIS

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WWTP MDL021865 BIOSOLIDS ICIS 01/01/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WWTP MD0021865 ICIS-NPDES MAJOR ICIS

RISK MANAGEMENT PLAN
MATTAWOMAN WASTEWATER TREATMENT PLANT 100000043348 RMP REPORTER RMP

ICIS-AIR (AIR)
MATTAWOMAN WWTP/BIO GRO MD0000002401700101 AIR MINOR ICIS 10/19/2014
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WWTP MD0021865 NPDES PRETREATMENT PROGRAM ICIS

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MATTAWOMAN WATER POLLUTION CONTROL FACILITY MDR001214 ICIS-NPDES NON-MAJOR ICIS 03/05/2024 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
MD-EPSC
4952
SEWERAGE SYSTEMS

NPDES
4952
SEWERAGE SYSTEMS

AIRS/AFS
4952
SEWERAGE SYSTEMS

NPDES
4952
SEWERAGE SYSTEMS

AIR
4952
SEWERAGE SYSTEMS

MD-PEMIS
4953
REFUSE SYSTEMS

Facility Codes and Flags

EPA Region: 03
Duns Number: 1212901
Congressional District Number: 05
Legislative District Number:
HUC Code/Watershed: 02070011 / LOWER POTOMAC
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
MATTAWOMAN WWTP/BIO GRO AIRS/AFS
MATTAWOMAN WWTP CWNS
MATTAWOMAN WATER POLLUTION CONTROL FACILITY NPDES

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
PARENT COMPANY 1
DEPARTMENT OF UTILITIES
RMP


MAILING ADDRESS
CHARLES COUNTY COMMISSIONERS
NPDES
View
MAILING ADDRESS
CHARLES COUNTY COMMISSIONERS
NPDES
View
PARENT COMPANY 2
THE CHARLES COUNTY GOVERNMENT
RMP


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIR 221320 SEWAGE TREATMENT FACILITIES.
RMP 22132 SEWAGE TREATMENT FACILITIES
AIRS/AFS 221320 SEWAGE TREATMENT FACILITIES.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
MAILING ADDRESS P.O. BOX 2150 LA PLATA___(0472--CH) MD 20646 NPDES
MAILING ADDRESS MATTAWOMAN WPCF LA PLATA MD 20646 NPDES
OWNER 5310 HAWTHORNE ROAD LAPLATA MD 20646 MD-EPSC

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OWNER
MATTAWOMAN WWTP/BIO GRO
301-743-3104
MD-PEMIS


OWNER
CHARLES COUNTY COMMISSIONERS - UTILITIES DEPT.
301-743-5441
MD-EPSC
View

Query executed on: OCT-14-2025