In September 2006, state lawmakers directed Washington Department of Ecology (Ecology) to adopt stringent oil transfer rules after 4,700 gallons of heavy fuel oil spilled during an oil transfer operation at Chevron-Texaco's Richmond Beach fuel terminal in December 2003. Swift currents drove the oil ashore on the Suquamish Tribe shellfish beds at Doe-kag-wats beach and salt marsh at Indianola in Kitsap County. In 2008, nearly 15 billion gallons of oil were transferred over Washington waters by ship, fueling facility, tank truck or rail, according to Ecology reports. That equals 1.7 million gallons an hour. Since the rules went into effect, Ecology has seen reductions in the amount of oil spilled. In 2008, only about 158 gallons were spilled to Washington waters during fuel transfers.