The effort to prevent sewage from flowing from Tijuana into San Diego County got a small boost Monday when Gov. Jerry Brown signed legislation to provide about $2.1 million in funds for the effort. Senate Bill 507, authored by state Sen. Ben Hueso, D-San Diego, and Assembly member Todd Gloria, D-San Diego, reallocates one-time funds previously designated for use by San Diego County under the Wildlife, Coastal and Park Land Conservation Act.