THE WILLAMETTE VALLEY COMPANY
Cleaner Air Oregon ProfileHexion, Inc.
Cleaner Air Oregon (CAO) is a health-based permitting program that regulates emissions of toxic air contaminants from facilities based on risk to nearby communities. CAO requires facilities to report toxic air contaminant emissions, assess potential health risks to people nearby and reduce toxic air contaminant risk if it exceeds legal limits.
As part of the Cleaner Air Oregon process, each facility has a dedicated web page to provide communities access to facility information and updates on where it is involved in the process.
- Each step of the CAO risk assessment process has a section that includes LRAPA’s communications and deliverables from the facility.
- A color-coded graphic shows where a facility is in the Cleaner Air Oregon Process.
- For additional information and history of the program, visit the DEQ Cleaner Air Oregon website.
Document Type | Anticipated Submittal Date | Approval Date |
---|---|---|
Emissions Inventory | 03/02/202 | 12/22/2021 |
Modeling Protocol | 01/21/2022 | 03/18/2022 |
Risk Assessment Report | 05/13/2022 | 06/01/2022 |
Risk Reduction Plan | N/A | N/A |
CAO Completed | 02/25/2022 | 09/23/2022 |

Emissions Inventory
For an introduction to emissions inventories and why they matter, please see EPA’s Fact Sheet. A facility-specific emissions inventory timeline and associated documents are linked below.
March 2, 2020: LRAPA calls The Willamette Valley Company LLC into the program.
March 23, 2020: The Willamette Valley Company LLC submitted an extension request proposing a new Emissions Inventory due date of June 22, 2020 due to the COVID-19 pandemic.
March 25, 2020: LRAPA granted the extension of Emissions Inventory due date.
- LRAPA’s extension request approval letter.
June 22, 2020: The Willamette Valley Company LLC submits Emissions Inventory for LRAPA review.
July 6, 2020: LRAPA asks for additional information for the Emissions Inventory in a meeting with The Willamette Valley Company LLC.
July 17, 2020: The Willamette Valley Company LLC submits supplemental information.
February 11, 2021: LRAPA asks for additional information and clarifications for the Emissions Inventory
- LRAPA’s additional information request.
March 31, 2021: The Willamette Valley Company LLC submits response letter to LRAPA’s February 11, 2021 request
April 15, 2021: LRAPA responds and accepts The Willamette Valley Company response letter proposals received on March 31, 2021
- LRAPA’s response letter.
April 30, 2021: The Willamette Valley Company LLC submits additional information and the updated Emissions Inventory requested by LRAPA.
June 28, 2021: LRAPA completes review of the updated Emissions Inventory submitted by The Willamette Valley Company LLC on April 30, 2021, and asks for additional information and clarifications.
- LRAPA’s additional information request.
July 15, 2021: LRAPA receives a deadline extension request from The Willamette Valley Company for the submission of the updated Emissions Inventory to allow for further discussions on emission estimation calculations. LRAPA approved the extension request on July 16, 2021.
July 30, 2021: After a meeting with The Willamette Valley Company on July 29, 2021, LRAPA receives a second deadline extension request for the submission of the updated Emissions Inventory to allow for the considerable time needed to incorporate updates to the emissions estimation calculations. On July 30, 2021, LRAPA approved the extension request and the proposed due date of August 18, 2021.
- Second deadline extension request letter.
- LRAPA’s approval letter.
August 18, 2021: The Willamette Valley Company submits the final version of the Emissions Inventory background calculation spreadsheet. On September 29, 2021, LRAPA verified that the emissions inventory calculations are accurate and requests all Emissions Inventory information from the calculation spreadsheet be submitted in the AQ520 form.
December 22, 2021: LRAPA approves the Emissions Inventory submitted by The Willamette Valley Company.
- LRAPA’s emissions inventory approval letter.
- Final emissions inventory – Toxic Air Contaminant per individual formulations.
- Final emissions inventory – Toxic Air Contaminant summary per product type.
Modeling Protocol & Risk Assessment
January 21, 2022: The Willamette Valley Company LLC submits Modeling Protocol for LRAPA review.
February 23, 2022: LRAPA completes initial review and askes for additional information and clarifications for the Modeling Protocol, setting a resubmittal due date of March 11, 2022.
- LRAPA’s additional information request.
March 18, 2022: LRAPA approves the modeling protocol.
- LRAPA’s modeling protocol approval letter.
- The Willamette Valley Company’s March 11, 2022 response letter for the updated modeling protocol.
- The Willamette Valley Company’s modeling protocol.
Risk Assessment Report
May 13, 2022: The Willamette Valley Company LLC submits a Level 1 Risk Assessment due May 17, 2022 for LRAPA review..
- The Willamette Valley Co., LLC Level 1 Risk Assessment Report.
June 1, 2022: LRAPA approves the Level 1 Risk Assessment submitted by The Willamette Valley Company LLC.
- LRAPA’s Risk assessment approval letter.
Risk Reduction Plan
Per LRAPA’s approval of the Level 1 Risk Assessment for The Willamette Valley Company LLC, a Risk Reduction Plan will not be required for this facility.
CAO Progress Completed
The Willamette Valley Company LLC has completed the CAO process. The permit for the facility, which contains CAO conditions for demonstrating compliance with the established risk limits, can be found by clicking here. The review report for the facility, which details the Level 1 Risk Assessment model inputs and the Risk Assessment results, can be found by clicking here.
FACILITY
The Willamette Valley Company LLC operates a filler, adhesive, putty, and coating manufacturing operation at 586 and 660 McKinley Street in Eugene, Oregon. The facility has been operating at this location since 1958. Learn more about LRAPA’s regulation of The Willamette Valley Company by viewing their current air permits.
Site Address
660 McKinley St.
Eugene, Oregon, 97402
Current Air Permit
Permit type: Standard ACPD
Source Number: 208935
LRAPA Contact
Jonathan Wright
541-736-1056, ext. 233
Site Address
470 S. 2nd St.
Springfield, OR
Current Air Permit
Permit type: Standard ACDP
Source Number: 200510
LRAPA Contact
Jonathan Wright
541-736-1056, ext. 236

Legend
Facility
Hexion Inc. operates a resin manufacturing facility at 470 South Second Street in Springfield, Oregon. Formaldehyde is produced on-site and used primarily as a raw material for various types of resins. Wax emulsions are also produced at this facility. The facility uses boilers, scrubbers and baghouses to control emissions from various portions of the operation. Learn more about LRAPA’s regulation of Hexion by viewing their current air permit below.
Emissions Inventory
For an introduction to emissions inventories and why they matter, please see EPA’s Fact Sheet. A facility-specific emissions inventory timeline and associated documents are linked below.January 4, 2021: LRAPA calls Hexion, Inc. into the program
- LRAPA’s call in letter to Hexion, Inc.
January 29, 2021: Hexion requested an extension on the submittal date for the Emission Inventory because they have a new owner audit agreement with US EPA related to their Toxic Release Inventory emissions. This audit may affect Hexion’s emission calculations of compounds regulated by Cleaner Air Oregon
- Hexion’s Emission Inventory extension request letter.
February 12, 2021: After confirming with US EPA that Hexion is participating in a new owner audit agreement, LRAPA granted an extension on the due date for the Emission Inventory.
- LRAPA’s extension request response letter.
June 18, 2021: Hexion requested a second extension to the submittal date for the Emission Inventory because US EPA extended the due date for completion of the TRI new owner audit report.
- Hexion’s second Emissions Inventory extension request letter.
June 29, 2021: After confirming that US EPA has extended the due date for the TRI new owner audit report, LRAPA granted a second extension of the submittal date of the Emission Inventory.
- LRAPA’s second extension request response letter.
October 25, 2021: LRAPA extends Hexion’s Emissions Inventory to aligned with a December 10, 2021, due date listed in Stipulation and Final Order (SFO) No. 21-3839 signed on September 3, 2021.
- LRAPA’s third extension request response letter.
December 10, 2021: Hexion submits their emissions inventory.
- Hexion’s Compiled CAO Inventory.
- Hexion’s AQ520 Form.
March 7, 2022 and March 11, 2022: LRAPA reviewed Hexion’s submitted emissions inventory and requested modifications and clarifications. LRAPA expects a response to these requests by June 1, 2022.
Modeling Protocol & Risk Assessment
Hexion, Inc. – was called in into the Cleaner Air Oregon Program in January of 2021 and entered the Emissions Inventory Step of the Cleaner Air Oregon process. This field will be updated once the facility reaches this portion of CAO.
Risk Assessment Report
Hexion, Inc. – was called in into the Cleaner Air Oregon Program in January of 2021 and entered the Emissions Inventory Step of the Cleaner Air Oregon process. This field will be updated once the facility reaches this portion of CAO.
Risk Reduction Plan
Hexion, Inc. – was called in into the Cleaner Air Oregon Program in January of 2021 and entered the Emissions Inventory Step of the Cleaner Air Oregon process. This field will be updated once the facility reaches this portion of CAO.
CAO Progress Completed
Hexion, Inc. – was called in into the Cleaner Air Oregon Program in January of 2021 and entered the Emissions Inventory Step of the Cleaner Air Oregon process. This field will be updated once the facility reaches this portion of CAO.