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FORM R REPORTS



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PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340158

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 25-JUN-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340158

Section 1. Toxic Chemical Identity

1.1 CAS Number: 71-55-6       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: 1,1,1-Trichloroethane

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: YES
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 10000 to 99999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 32417
 Pounds
 C - Mass Balance Calculations

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 91561
 Pounds
 C - Mass Balance Calculations

5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 0
 Pounds
 O - Other Approaches

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LOS ANGELES COUNTY SANITATION
 1955 WORKMAN MILL RD.
 WHITTIER
 CA
 LOS ANGELES
 90601
2
 NA




6.2 Transfers to other Off-Site Locations

1 RCRA Number: CAD008302903

 Parent Company Controlled: NO
Name: OIL & SOLVENT PROCESS COMP.

 Address: 1704 WEST 1ST ST.
City: AZUSA

 State: CA
County: LOS ANGELES

 Zip Code: 91702
Country Code (Non - US):

Province:

OFFSITE AMOUNT SEQUENCE TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
1
 7638
 Pounds
 C - Mass Balance Calculations
 M56 - Energy Recovery

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: NA
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.1c. Range of Influent Concentration:

7A.1d. Waste Treatment Efficiency Estimate:

7A.1e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 173253
 123978
 99924
 89000
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 19386
 7638
 8000
 9000
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 0
 0
 0
 0
8.6
 Quantity Treated Onsite
Pounds
 0
 0
 0
 0
8.7
 Quantity Treated Offsite
Pounds
 0
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: .68

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
W13 - IMPROVED MAINTENANCE SCHEDULING, RECORDKEEPING, OR PROCEDURES
 T01 - INTERNAL POLLUTION PREVENTION OPPORTUNITY AUDIT(S)
 NA

8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340160

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 25-JUN-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
INVA
 YES
 INVALID
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340160

Section 1. Toxic Chemical Identity

1.1 CAS Number: 7664-41-7       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Ammonia

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: NO
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 1000 to 9999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 100
 Pounds
 O - Other Approaches

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 0
 Pounds
 O - Other Approaches

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LOS ANGELES COUNTY SANITATION, NA
 1955 WORKMAN MILL RD.
 WHITTIER
 CA
 LOS ANGELES
 90607
2
 NA




6.2 Transfers to other Off-Site Locations

RCRA Number:

Parent Company Controlled:

Name:

Address:

City:

State:

County:

Zip Code:

Country Code (Non - US):

Province:

TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
NO DATA
NO DATA
 NO DATA

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: LIQUID WASTE
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 C01 - CHEMICAL PRECIPITATION -- LIME OR SODIUM HYDROXIDE
2
 C11 - NEUTRALIZATION
3
 P11 - SETTLING/CLARIFICATION
4
 P15 - OIL SKIMMING
7A.1c. Range of Influent Concentration: 1 PPB TO 1 PPM
7A.1d. Waste Treatment Efficiency Estimate: 100
7A.1e. Based on Operating Data?: NO

7A.2a. Waste Stream: NA
7A.2b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.2c. Range of Influent Concentration:

7A.2d. Waste Treatment Efficiency Estimate:

7A.2e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 1005
 100
 0
 0
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 0
 0
 0
 0
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 0
 0
 0
 0
8.6
 Quantity Treated Onsite
Pounds
 20343
 12000
 0
 0
8.7
 Quantity Treated Offsite
Pounds
 0
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: .6

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
W42 - SUBSTITUTED RAW MATERIALS
 T01 - INTERNAL POLLUTION PREVENTION OPPORTUNITY AUDIT(S)
 NA

NA



8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340172

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
GREG EMANUELSON
 ENVIRONMENTAL MANAGER
 Original
 18-JAN-93

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340172

Section 1. Toxic Chemical Identity

1.1 CAS Number: 75-09-2       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Dichloromethane

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: YES
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 10000 to 99999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 20357
 Pounds
 C - Mass Balance Calculations

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 0
 Pounds
 O - Other Approaches

5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 0
 Pounds
 O - Other Approaches

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LA COUNTY SANITATION
 1955 WORKMEN MILL RD.
 WHITTIER
 CA
 LOS ANGELES
 90601
2
 NA




6.2 Transfers to other Off-Site Locations

1 RCRA Number: CAD008302903

 Parent Company Controlled: NO
Name: OIL & SOLVENT PROCESSING COMP.

 Address: 1704 WEST 1ST ST.
City: AZUSA

 State: CA
County: LOS ANGELES

 Zip Code: 91702
Country Code (Non - US):

Province:

OFFSITE AMOUNT SEQUENCE TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
1
 6528
 Pounds
 C - Mass Balance Calculations
 M56 - Energy Recovery

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: NA
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.1c. Range of Influent Concentration:

7A.1d. Waste Treatment Efficiency Estimate:

7A.1e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 6579
 20357
 18000
 14000
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 28740
 6528
 7000
 7000
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 0
 0
 0
 0
8.6
 Quantity Treated Onsite
Pounds
 0
 0
 0
 0
8.7
 Quantity Treated Offsite
Pounds
 0
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: .76

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
NA



8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340184

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 09-JUL-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340184

Section 1. Toxic Chemical Identity

1.1 CAS Number: 7664-93-9       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: YES
Manufacturing Aid: YES
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 10000 to 99999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 1 - 10
 Pounds
 O - Other Approaches

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 1 - 10
 Pounds
 O - Other Approaches

5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 0
 Pounds
 C - Mass Balance Calculations

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LA COUNTY SANITATION
 1955 WORKMAN MILL RD.
 WHITTIER
 CA
 LOS ANGELES
 90601
2
 NA




3
 NA




6.2 Transfers to other Off-Site Locations

1 RCRA Number: CAD097030993

 Parent Company Controlled: NO
Name: NORRIS INDUSTRIES

 Address: 5215 SOUTH BOYLE ST.
City: LOS ANGELES

 State: CA
County: LOS ANGELES

 Zip Code: 90058
Country Code (Non - US):

Province:

OFFSITE AMOUNT SEQUENCE TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
1
 20435
 Pounds
 C - Mass Balance Calculations
 M24 - Metals Recovery

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: WASTEWATER
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 C01 - CHEMICAL PRECIPITATION -- LIME OR SODIUM HYDROXIDE
2
 C11 - NEUTRALIZATION
3
 P11 - SETTLING/CLARIFICATION
4
 P15 - OIL SKIMMING
5
 NA
7A.1c. Range of Influent Concentration: 1 PPM TO 100 PPM
7A.1d. Waste Treatment Efficiency Estimate: 100
7A.1e. Based on Operating Data?: NO

7A.2a. Waste Stream: NA
7A.2b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.2c. Range of Influent Concentration:

7A.2d. Waste Treatment Efficiency Estimate:

7A.2e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 510
 0
 0
 0
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 0
 0
 0
 0
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 28336
 20435
 17000
 15000
8.6
 Quantity Treated Onsite
Pounds
 0
 27129
 30000
 28000
8.7
 Quantity Treated Offsite
Pounds
 4224
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: 1.44

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
NA



8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340196

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 25-JUN-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340196

Section 1. Toxic Chemical Identity

1.1 CAS Number: 78-93-3       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Methyl ethyl ketone

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: YES
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: YES
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 1000 to 9999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 8274
 Pounds
 C - Mass Balance Calculations

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 16148
 Pounds
 C - Mass Balance Calculations

5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 1 - 10
 Pounds
 O - Other Approaches

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 COUNTY SANITATION DIST OF LA
 1955 WORKMAN MILL ROAD
 BAILEY
 CA
 LOS ANGELES
 90601
2
 NA




6.2 Transfers to other Off-Site Locations

1 RCRA Number: CAD008302903

 Parent Company Controlled: NO
Name: OIL & SOLVENT PROCESSING CO.

 Address: 1704 WEST 1ST ST.
City: AZUSA

 State: CA
County: LOS ANGELES

 Zip Code: 91702
Country Code (Non - US):

Province:

OFFSITE AMOUNT SEQUENCE TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
1
 4016
 Pounds
 C - Mass Balance Calculations
 M56 - Energy Recovery

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: NA
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.1c. Range of Influent Concentration:

7A.1d. Waste Treatment Efficiency Estimate:

7A.1e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 18636
 24423
 22000
 19800
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 5226
 4016
 4328
 3895
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 0
 0
 0
 0
8.6
 Quantity Treated Onsite
Pounds
 0
 0
 0
 0
8.7
 Quantity Treated Offsite
Pounds
 0
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: 1.19

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
NA



8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340208

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 25-JUN-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340208

Section 1. Toxic Chemical Identity

1.1 CAS Number: 7647-01-0       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: NO

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: NO

 Impurity: NO

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: YES
Ancillary or Other Use: YES

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 10000 to 99999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 766
 Pounds
 C - Mass Balance Calculations

5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO
 1 - 10
 Pounds
 C - Mass Balance Calculations

5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 0
 Pounds
 C - Mass Balance Calculations

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LOS ANGELES COUNTY SANITATION
 1955 WORKMAN MILL ROAD
 WHITTIER
 CA
 LOS ANGELES
 90607
2
 NA




6.2 Transfers to other Off-Site Locations

1 RCRA Number: CAD097030993

 Parent Company Controlled: NO
Name: NORRIS INDUSTRIES

 Address: 5215 SO. BOYLE ST.
City: LOS ANGELES

 State: CA
County: LOS ANGELES

 Zip Code: 90058
Country Code (Non - US):

Province:

OFFSITE AMOUNT SEQUENCE TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
1
 34085
 Pounds
 C - Mass Balance Calculations
 M24 - Metals Recovery

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: WASTEWATER
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 C01 - CHEMICAL PRECIPITATION -- LIME OR SODIUM HYDROXIDE
2
 C11 - NEUTRALIZATION
3
 P11 - SETTLING/CLARIFICATION
4
 P15 - OIL SKIMMING
5
 NA
7A.1c. Range of Influent Concentration: 1 PPB TO 1 PPM
7A.1d. Waste Treatment Efficiency Estimate: 100
7A.1e. Based on Operating Data?: NO

7A.2a. Waste Stream: NA
7A.2b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.2c. Range of Influent Concentration:

7A.2d. Waste Treatment Efficiency Estimate:

7A.2e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 1499
 2051
 2000
 2000
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 0
 0
 0
 0
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 30716
 34085
 30000
 28000
8.6
 Quantity Treated Onsite
Pounds
 0
 0
 4000
 6000
8.7
 Quantity Treated Offsite
Pounds
 10644
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: .84

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
NA



8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities

PART I. FACILITY IDENTIFICATION INFORMATION (FORM R)

DOCUMENT CONTROL NUMBER: 1391055340210

The Facility Registry System ID is not submitted as part of the TRI Form RFacility Registry System ID:  110002332921

Section 1. Reporting Year

Reporting Year: 1991

Section 2. Trade Secret Information

2.1 Trade Secret: NO

2.2 Sanitized Copy: Unsanitized

Section 3. Certification

CERTIFYING OFFICIAL'S NAME CERTIFYING OFFICIAL'S TITLE CERTIFYING OFFICIAL'S SIGNATURE DATE SIGNED
JAMES CARTER
 GENERAL MANAGER
 Original
 25-JUN-92

Section 4. Facility Identification

TRI Facility ID: 91016CMPST801RO

4.1 Facility Name and Address.

Facility Information

NAME STREET CITY COUNTY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 LOS ANGELES
 CA
 91016

BIA Tribal Code Tribe
NO DATA
 NO DATA

Mailing Information

NAME STREET CITY STATE ZIP CODE
DUCOMMUN AERO STRUCTURES INC
 801 ROYAL OAKS DR
 MONROVIA
 CA
 91016

PROVINCE COUNTRY (NON - US)
NO DATA
 NO DATA

4.2 Facility Classification

ENTIRE FACILITY PARTIAL FACILITY FEDERAL FACILITY GOCO FACILITY
YES
 NO
 NO
 No Data

4.3 Technical Contact

Not Available to the Public as this information is only for Intranet.

4.4 Public Contact

NAME PHONE
GREG EMANUELSON
 8183583211

4.5 SIC Codes

SIC CODE PRIMARY SIC CODE DESCRIPTION
3728
 YES
 AIRCRAFT PARTS AND EQUIPMENT, NEC
NA
 NO
 NA

4.6 Location

LATITUDE LONGITUDE
034-09-15
 117-58-38

4.7 Dun Numbers

DUNS NUMBER
982324154

4.8 RCRA ID Numbers

RCRA ID NUMBER
CAD982324154
NA

4.9 NPDES Permit Numbers

NPDES PERMIT NUMBER
NA

4.10 Underground Injection Well Code (UIC) ID Number

UIC ID NUMBER
NA

5. Parent Company Information

Parent Company Name: DUCOMMUN INC

Parent Company DUNS Number: 009584103

PART II. CHEMICAL - SPECIFIC INFORMATION

DOCUMENT CONTROL NUMBER: 1391055340210

Section 1. Toxic Chemical Identity

1.1 CAS Number: 7783-20-2       PFAS Indicator: NO
1.2 Toxic Chemical or Chemical Category Name: Ammonium sulfate (solution)

1.3 Generic Chemical Name: NA

1.4 Distribution of Each Member of the Dioxin and Dioxin like Compounds Category

NA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
NO
















Section 2. Mixture Component Identity

2.1 Supplier Provided Generic Chemical Name: NA

Section 3. Activities and Uses of the Toxic Chemical

3.1 Manufacture the Toxic Chemical:

Produce: YES

 Import: NO

 On-Site Use/Processing: NO
Sale/Distribution: NO

 Byproduct: YES

 Impurity: YES

3.2 Process the Toxic Chemical:

Reactant: NO
Formulation Component: NO
Article Component: NO
Repackaging: NO
Impurity: NO
Recycling:

3.3 Otherwise Use the Toxic Chemical:

Chemical Processing Aid: NO
Manufacturing Aid: NO
Ancillary or Other Use: NO

Section 4. Maximum Amount of the Toxic Chemical Onsite During the Calendar Year

Maximum Chemical Amount: 1000 to 9999

Section 5. Quantity of the Toxic Chemical Entering each Environmental Medium Onsite

5.1 Fugitive or Non-Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.2 Stack or Point Air Emissions

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.3 Discharges to Receiving Streams or Water Bodies

NA STREAM/WATER BODY NAME TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE % FROM STORMWATER
NO
 NA



5.4 Underground Injection On Site 87-95

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.4-5.5 Disposal to Land Onsite

5.4.1 Underground Injection Onsite to Class I Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.4.2 Underground Injection Onsite to Class II-V Wells.

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
NO


5.5 Disposal to Land Onsite

5.5.1 On Site Landfill

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.2 Land Treatment/Application Farming

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.3 Surface Impoundment

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


5.5.4 Other Disposal

NA TOTAL RELEASE (per year) UNIT OF MEASURE BASIS OF ESTIMATE
YES


Section 6. Transfers of the Toxic Chemical in Wastes to Off-Site Locations

6.1 Discharges to Publicly Owned Treatment Works (POTWs)

6.1.A Total Quantity Transferred to POTWs and Basis of Estimate

6.1.A. TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE
1
 24000
 Pounds
 O - Other Approaches

6.1.B POTW Locations

6.1.B. POTW NAME ADDRESS CITY STATE COUNTY ZIP CODE
1
 LA COUNTY SANITATION
 1955 WORKMAN MILL ROAD
 BAILEY
 CA
 LOS ANGELES
 90601
2
 NA




6.2 Transfers to other Off-Site Locations

RCRA Number:

Parent Company Controlled:

Name:

Address:

City:

State:

County:

Zip Code:

Country Code (Non - US):

Province:

TOTAL TRANSFERS (per year) UNIT OF MEASURE BASIS OF ESTIMATE WASTE MANAGEMENT TYPE
NO DATA
NO DATA
 NO DATA

Section 7A. On-Site Waste Treatment Methods and Efficiency

7A.1a. Waste Stream: WASTEWATER
7A.1b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 C11 - NEUTRALIZATION
2
 P11 - SETTLING/CLARIFICATION
3
 P15 - OIL SKIMMING
4
 C01 - CHEMICAL PRECIPITATION -- LIME OR SODIUM HYDROXIDE
7A.1c. Range of Influent Concentration: 1 PPM TO 100 PPM
7A.1d. Waste Treatment Efficiency Estimate: 100
7A.1e. Based on Operating Data?: NO

7A.2a. Waste Stream: NA
7A.2b.
 WASTE TREATMENT METHOD(S) SEQUENCE
1
 NO DATA
7A.2c. Range of Influent Concentration:

7A.2d. Waste Treatment Efficiency Estimate:

7A.2e. Based on Operating Data?:

Section 7B. On-Site Energy Recovery Processes

ON SITE ENERGY RECOVERY PROCESSES
NA

Section 7C. On-Site Recycling Processes

ON SITE RECYCLING PROCESSES
NA

Section 8. Source Reduction and Recycling Activities

SECTION
 TYPE OF QUANTITY UNITS PRIOR YEAR CURRENT REPORTING YEAR FOLLOWING YEAR SECOND FOLLOWING YEAR
8.1
 Quantity Released
Pounds
 10
 0
 0
 0
8.2
 Quantity Used for Energy Recovery Onsite
Pounds
 0
 0
 0
 0
8.3
 Quantity Used for Energy Recovery Offsite
Pounds
 0
 0
 0
 0
8.4
 Quantity Recycled Onsite
Pounds
 0
 0
 0
 0
8.5
 Quantity Recycled Offsite
Pounds
 0
 0
 0
 0
8.6
 Quantity Treated Onsite
Pounds
 0
 0
 0
 0
8.7
 Quantity Treated Offsite
Pounds
 0
 0
 0
 0

8.8 One-Time Event Release: 0 Pounds

8.9 Production Ratio: .6

8.10 Source Reduction Activities

SOURCE REDUCTION ACTIVITIES METHOD 1 METHOD 2 METHOD 3 ESTIMATED ANNUAL REDUCTION
W42 - SUBSTITUTED RAW MATERIALS
 T01 - INTERNAL POLLUTION PREVENTION OPPORTUNITY AUDIT(S)
 NA

8.11 Additional Data Indicator: NO

Additional Optional Information on Source Reduction, Recycling, or Pollution Control Activities