Cedar Grove — Everett

Current Actions & Activities

Cedar Grove submitted an application for a dry fermentation anaerobic digester operation to produce digester gas which would be used to fuel engine generators and produce electricity.  There are various permitting and environmental review actions under way regarding this proposed project. The information on this page is provided to identify air quality related review activity.

February 29, 2012 -- On February 29, 2012, the City of Everett issued a proposed mitigated determination of non-significance (MDNS) for Cedar Grove's digester project proposal. The details of that proposed MDNS, documents associated with the proposed MDNS, as well as the details regarding the comment period, are located on the City of Everett’s website (see right side of website page for document links).

Copies of documents on City of Everett's website:

• Comment Period Announcement – Proposed MDNS
• Proposed MDNS
• Proposed MDNS Exhibit A

The proposed MDNS issued for public comment has been developed under the State Environmental Policy Act (SEPA). It was processed through a Co-Lead Agreement between the City of Everett and the Puget Sound Clean Air Agency.  A copy of the Co-Lead Agreement is provided for reference.

SEPA Co-Lead Agency Agreement with Everett.pdf

The documents submitted by Cedar Grove Composting to the City of Everett in relation to the SEPA review are available on the City of Everett’s website.  A link to that website page with those documents is also provided for your reference. On that website, information that was submitted with the odor modeling analysis included detailed computer input and output files. It was not posted on the website but was available upon request to the City of Everett. That supplemental information may also be obtained from this Agency by calling 206-689-4011 or sending an email request to recordsrequest@pscleanair.com.

Additional documents and references were considered and included in this review, beyond the documents submitted by Cedar Grove. These are identified below and have links to copies of those documents, where appropriate:

• Epstein, Eliot, “Industrial Composting – Environmental Engineering and Facilities Management”, CRC Press, ©2011 by Taylor and Francis Group LLC, Boca Raton, FL. [COPYRIGHTED]
• San Diego State University, “Comprehensive Compost Odor Response Project”, Contractor’s Report to the Board, March 2007, (California Integrated Waste Management Board).
• Cedar Grove, E-Mail Communication between Cedar Grove and Odotech with e-nose Data for June 2011, dated September 16.
• Barth and Bitter, “Certifying Statement on Comparison of Odor Emissions and Immissions of Various Composting Systems”, September 2006, prepared for W.L. Gore & Associates, GmbH.

Some specific application document references have also been identified in Exhibit A of the Proposed MDNS.  These are identified below and have links to copies of those documents, where appropriate:

• “An Air Quality Modeling Investigation of Potential Odors From a Composting Facility, Everett Washington,” prepared for Cedar Grove Composting by Kirk Winges, Environ, November 2011 (revised).
• Attachment A (Figures and Illustrations), File name Attachment A.pdf, May 2011 submittal from Cedar Grove.
• “Synergies of Composting and Anaerobic Digestion: Odor Control, Marketable Product, and System Selection,” May 2011 Presentation Materials by Jerry Bartlett, File name Attachment AD.pdf, May 2011 submittal from Cedar Grove.
• Puget Sound Clean Air Agency Engineering Review Worksheet for NOC application 9681 (based on previous project submittals from Cedar Grove).
• Cedar Grove Emissions Inventory, November 2011 (pdf of excerpt of Excel Workbook Filename: Cedar Grove Emissions Inventory.xlsx, Worksheet Tab ID: PSCAA. (Note – this document is included at the end of the Proposed MDNS, Exhibit A)

December 17, 2010 -- Cedar Grove Composting is proposing a new phase of development for their Everett site.  This proposal includes a dry fermentation anaerobic disgester operation, producing digester gas which would be used to fuel engine generators producing electricity.  A Notice of Construction (NOC) application was received by this Agency on December 17, 2010 for this proposal and it is currently under review by Agency staff.  A copy of the NOC application document (including all of the application attachments) is provided for reference through the document links below.

• NOC 10268 Application - Cover Documents
• NOC 10268 Application - Attachment 1
• NOC 10268 Application - Attachment 2
• NOC 10268 Application - Attachment 3
• NOC 10268 Application - Attachment 4
• NOC 10268 Application - Attachment 5
• NOC 10268 Application - Attachment 6
• NOC 10268 Application - Attachment 7
• NOC 10268 Application - Attachment 8
• NOC 10268 Application - Attachment 9
• NOC 10268 Application - Attachment 10
• NOC 10268 Application - Attachment 11

On January 13, 2011, this Agency completed the initial review of this NOC application and identified the additional information that is needed to have a complete application for further review.  A copy of that information needed to complete the application is provided in the link below.

Cedar Grove - Everett NOC 10268 Incomplete Letter

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