FRS Facility Detail Report


HEMLOCK SEMICONDUCTOR OPERATIONS LLC

EPA Registry Id: 110000407783
12334 GEDDES RD., P.O. BOX 80
HEMLOCK, MI 48626


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
HEMLOCK SEMICONDUCTOR CORPORATION 2614500046 AIR MAJOR (OPERATING) AIRS/AFS 09/09/2014
TOXICS RELEASE INVENTORY SYSTEM
HEMLOCK SEMICONDUCTOR OPERATIONS LLC 48626HMLCK12334 TRI REPORTER TRIS 06/25/2020
NATIONAL COMPLIANCE DATABASE
HEMLOCK SEMICONDUCTOR CORP C05#00EP5911 COMPLIANCE ACTIVITY NCDB

ICIS-AIR (AIR)
HEMLOCK SEMICONDUCTOR OPERATIONS LLC MI00000000000B2644 AIR MAJOR ICIS 07/29/2025
INTEGRATED COMPLIANCE INFORMATION SYSTEM HEMLOCK SEMICONDUCTOR CORPORATION 5869223 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 09/29/2003
EMISSION INVENTORY SYSTEM (EIS)
HEMLOCK SEMICONDUCTOR OPERATIONS LLC 7238411 CRITERIA AIR POLLUTANT MAJOR EIS 11/26/2024
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
HEMLOCK SEMICONDUCTOR 340152792 OSHA ESTABLISHMENT OSHA-OIS 09/12/2018
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
HSC MI0027375 ICIS-NPDES NON-MAJOR ICIS 09/30/2024 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
TOXIC SUBSTANCES CONTROL ACT
HEMLOCK SEMICONDUCTOR CORP 100606299 TSCA SUBMITTER TSCA 08/13/2012
RISK MANAGEMENT PLAN
HEMLOCK SEMICONDUCTOR CORP. 100000076589 RMP REPORTER RMP

ELECTRONIC GREENHOUSE GAS REPORTING TOOL (E-GGRT)
HEMLOCK SEMICONDUCTOR OPERATIONS LLC 1003967 GREENHOUSE GAS REPORTER E-GGRT 02/29/2020
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
HEMLOCK SEMICONDUCTOR CORP 312044506 OSHA ESTABLISHMENT OSHA-OIS 05/27/2014
BIENNIAL REPORTERS
HEMLOCK SEMICONDUCTOR OPERATIONS LLC MID095395216 HAZARDOUS WASTE BIENNIAL REPORTER RCRAINFO 12/31/2021
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
HEMLOCK SEMICONDUCTOR OPERATIONS LLC MID095395216 LQG (Y) RCRAINFO

COMPLIANCE AND EMISSIONS DATA REPORTING INTERFACE
HEMLOCK SEMICONDUCTOR OPERATIONS LLC CEDRI10250938 COMPLIANCE AND EMISSIONS REPORTING API 08/25/2025
INTEGRATED COMPLIANCE INFORMATION SYSTEM HEMLOCK SEMICONDUCTOR CORPORATION 4556 FORMAL ENFORCEMENT ACTION ICIS 05/16/2001 ICIS-05-2001-0138
FORMAL ENFORCEMENT ACTION
TOXIC SUBSTANCES CONTROL ACT
HEMLOCK SEMICONDUCTOR OPERATIONS LLC TSCA9547 TSCA SUBMITTER TSCA 06/03/2024

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
OSHA-OIS
3295
MINERALS AND EARTHS, GROUND OR OTHERWISE TREATED

AIR
3339
PRIMARY SMELTING AND REFINING OF NONFERROUS METALS, EXCEPT COPPER AND ALUMINUM

NPDES
3295
MINERALS AND EARTHS, GROUND OR OTHERWISE TREATED

AIRS/AFS
3339
PRIMARY SMELTING AND REFINING OF NONFERROUS METALS, EXCEPT COPPER AND ALUMINUM

NPDES
3339
PRIMARY SMELTING AND REFINING OF NONFERROUS METALS, EXCEPT COPPER AND ALUMINUM

AIRS/AFS
2819
INDUSTRIAL INORGANIC CHEMICALS, NOT ELSEWHERE CLASSIFIED

AIR
2819
INDUSTRIAL INORGANIC CHEMICALS, NOT ELSEWHERE CLASSIFIED

ICIS
3295
MINERALS AND EARTHS, GROUND OR OTHERWISE TREATED

Facility Codes and Flags

EPA Region: 05
Duns Number: 1381581, 001307735, 3938586, 005353487, 5353487
Congressional District Number: 04
Legislative District Number:
HUC Code/Watershed: 04080203 / SHIAWASSEE
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
HEMLOCK SEMI-CONDUCTIOR ICIS
HEMLOCK SEMICONDUCTOR CORP RCRAINFO
HEMLOCK SEMICONDUCTOR CORPORATION TRI REPORTING FORM

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
JOINT PARENT COMPANY
CORNING INCORPORATED 3938586
E-GGRT


PART PARENT OWNER
THE DOW CHEMICAL COMPANY
E-GGRT


OWNER
HEMLOCK SEMICONDUCTOR OPERATIONS LLC
RCRAINFO


OWNER
HEMLOCK SEMICONDUCTOR OPERATIONS LLC
RCRAINFO


PARENT COMPANY 2
SHIN-ETSU HANDOTAI AMERICA, INC.
RMP


PART PARENT OWNER
SHIN ETSU HANDOTAI CO LTD
E-GGRT


PART PARENT OWNER
DOW CHEMICAL COMPANY
E-GGRT


OPERATOR
HEMLOCK SEMICONDUCTOR OPERATIONS LLC
RCRAINFO


PARENT COMPANY 2
THE DOW CHEMICAL COMPANY
RMP


PART PARENT OWNER
DOW INC
E-GGRT


PARENT COMPANY
CORNING INC 001307735
TRIS


PARENT COMPANY 1
CORNING INCORPORATED 1381581
RMP


PART PARENT OWNER
DOW CORNING CORP. 5353487
E-GGRT


PART PARENT OWNER
CORNING INCORPORATED
E-GGRT


PARENT COMPANY
DOW CORNING CORP 005353487
TSCA
View
PART PARENT OWNER
DOW CORNING CORPORATION
E-GGRT


PART PARENT OWNER
CORNING INCORPORATED 3938586
E-GGRT


OPERATOR
SHIN-EHTSU CHEMICAL CO LTD
RCRAINFO


OWNER/OPERATOR
HEMLOCK SEMICONDUCTOR OPERATIONS LL
RMP
View
JOINT PARENT COMPANY
THE DOW CHEMICAL COMPANY
E-GGRT


PART PARENT OWNER
MITSUBISHI MATERIALS
E-GGRT


PART PARENT OWNER
SHINTECH INC
E-GGRT


OWNER
CORNING INCORPORATED 3938586
RCRAINFO


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
NPDES 331419 PRIMARY SMELTING AND REFINING OF NONFERROUS METAL (EXCEPT COPPER AND ALUMINUM).
E-GGRT 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
RCRAINFO 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
NPDES 334413 SEMICONDUCTOR AND RELATED DEVICE MANUFACTURING.
TRIS 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
E-GGRT 325120 INDUSTRIAL GAS MANUFACTURING.
AIR 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
OSHA-OIS 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
RMP 325188 ALL OTHER BASIC INORGANIC CHEMICAL MANUFACTURING.
E-GGRT 325180

OSHA-OIS 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
RCRAINFO 325180

NPDES 331410

RMP 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
EIS 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
NPDES 327992 GROUND OR TREATED MINERAL AND EARTH MANUFACTURING.
AIR 331410

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
MAILING ADDRESS PO BOX 80 HEMLOCK MI 48626 TRIS
OWNER/OPERATOR PO BOX 80 ANGLETON TX 77515 RMP
MAILING ADDRESS 12334 GEDDES RD HEMLOCK MI 48626 ICIS
PARENT COMPANY 2200 WEST SALZBURG ROAD AUBURN MI 48686 TSCA

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
TECHNICAL CONTACT
MR. DEVIN MILLIONS


TSCA


COMPLIANCE CONTACT
LARRY E FRISCH
5176425201
AIRS/AFS


COMPLIANCE CONTACT
LARRY E FRISCH
5176425201
AIR


UNKNOWN CONTACT
LARRY E FRISCH
5176425201
AIRS/AFS


UNKNOWN CONTACT
LARRY E FRISCH
5176425201
AIR


UNKNOWN CONTACT
TERRY DATZ-SIEGEL
9896425201
ICIS


COMPLIANCE CONTACT
TERRY DATZ-SIEGEL
9896425201
ICIS


PUBLIC CONTACT
GERARD E. MANLEY
9893016247
TRIS


Query executed on: OCT-14-2025


Additional information for CERCLIS or TRI sites:

This information resource is not maintained, managed, or owned by the Environmental Protection Agency (EPA) or the Envirofacts Support Team. Neither the EPA nor the Envirofacts Support Team is responsible for their content or site operation. The Envirofacts Warehouse provides this reference only as a convenience to our Internet users.

  • National Library of Medicine (NLM) TOXMAP