This is a firm-fixed-price requirements contract for vault pumping services at the Cle Elum Ranger District, with a one-year base period and four one-year option periods for a total potential of five years. The anticipated service period is from May 1 to October 31 each year, with a start date of May 1, 2026. The contractor will service 36 locations across multiple recreation sites within the Cle Elum Ranger District. All necessary labor, equipment, and supplies must be provided to pump and dispose of waste from vault toilets and septic tanks on an as-needed basis, with disposal required at state-approved off-site facilities. The required equipment includes a septic pumper truck with a minimum 4-inch suction hose capable of reaching up to 100 feet.