The Upper Santa Margarita Irrigated Lands Group is a 501(c)3 non-profit organization that was formed in 2010 that has been reactivated and approved for third party group status with the regional board. Previously USMILG conducted all of the testing and reporting for its members during the previous Agricultural Waiver #4. USMILG is aligned with the Riverside County Farm Bureau, the largest farm organization in the county and a Farm Bureau membership will be required to join USMILG. Our Board is made up of all long time Riverside County growers. USMILG members stretch from Winchester to De Luz all the way to Anza to cover the most acreage possible and keep costs low.