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• 211- 666196 AUG • 05 2024 FUHRIMAN CONSULTING SEPTIC & DESIGN 4Q DATE: July 29, 2024 TO: Marion County I Onsite Sewage Disposal Program FROM: Tyler Fuhriman I Consultant SUBJECT: North Fork Station Mountain Grounds Coffee Co. 22935 Jennie Rd SE Lyons,OR 97358 Please take note of the following information: The North Fork Station is a growing food pod situated in the Santiam Canyon. It consists of six food trucks that collectively produce—96 gallons of wastewater per day. One of the vendors at North Fork Station, Mountain Grounds Coffee Co., has recently been connected to the existing septic system. it's important to note that coffee grinds,sweeteners, and creamers can negatively affect the performance of a septic system.A brief study was done by The Onsite Sewage Treatment Program(OSTP)at the University of Minnesota Water Resource Center.The Article Can be found here:University of Minnesota(OSTP) To address this issue,the coffee truck has implemented strict guidelines for coffee preparation to minimize the amount of coffee, milk,and sweetener entering the septic system. During a visit to the food pod, I had the opportunity to speak with Kyle Gulstrom,the owner of North Fork Station. He informed me that each food truck at the station is equipped with a small tank that discharges into the septic system.Typically,the trucks release their tanks into the septic system once a week,at an average rate of 96 gallons per day.The current septic system was designed to handle a max flow of 600 gpd and consists of a 500 gal trash tank followed by a 1000 gal septic tank.The effluent then flows into a 200 linear feet seepage trench drainfield. Kyle will also be installing public-use restrooms by February 2025. Adding public-use restrooms to the existing septic system will greatly increase biological activity within the septic tank.Allowing additional treatment of all incoming wastewater and the breakdown of organic matter.