202687 Determination of Nonsignificance (DNS) Description of Proposal: Washington State University proposes to construct an anerobic digestion facility that will co-digest manure slurry and cheese whey. The site will be approximately 150 feet by 60 feet, and will consist of a partially underground tank and several shipping containers where equipment will be located. The constructions is scheduled for November, 2025 thru January, 2027. Proponent: Facilities Services- Capital Washington State University Pullman, Washington Location: The project is located on the: WSU Knott Dairy 2156 Country Club Road Pullman, WA 99164 SW 1/4 of Section 14, Township 14N, Range 44E Parcel #200004414143904 Lead Agency: Washington State University The Lead Agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required, as provided for in RCW 43.21C.030(2)(c). This decision was made following the review of a completed Environmental Checklist and other information on file with the lead agency. This information is available to the public on request. There is no comment period for this DNS. X This DNS is issued under WAC 197-11-340(2); the lead agency will not act on this proposal for at least 14 days from the date listed below. Comments must be submitted in written form and be received by the Responsible Official designated below by 4:00 PM, October 16, 2025. Position/Title: Olivia Yang, Associate VP, Facilities Services Address: Washington State University Facilities Services Post Office Box 641150 Pullman, WA 99164-1150 Telephone: (509) 335-9024 Date: October 2, 2025