After finding that the San Joaquin Valley reached its goals in 2003, 2004, and 2005, the EPA in October 2006 said the valley attained standards for particulates.

• 后来发现圣约魁谷在2003，2004和2005年都达到了预期目标，环保署在2006年十月说圣约魁谷已达到了空气微粒标准。