As Tijuana River sewage has contaminated neighborhoods in southern San Diego County, the federal government has pledged two-thirds of a billion to clean it up. Now local lawmakers are calling on California to step up the fight against cross-border pollution, and one introduced a bill this week to revisit air quality standards for noxious gas from the river. … The U.S. Environmental Protection Agency on Monday announced a new agreement with Mexico to plan for wastewater infrastructure to accommodate future population growth in Tijuana. On Wednesday State Sen. Steve Padilla introduced a bill to update state standards for hydrogen sulfide, a noxious gas with a rotten egg smell that’s produced by sewage in the river.

Other U.S.-Mexico water news:

• Mexico News Daily: Mexico, US sign accord to solve toxic sewage crisis in Tijuana and San Diego
• ABC10 (San Diego): US signs updated agreement with Mexico over Tijuana River sewage crisis​
• Border Report: Mexico resumes water payments to US but remains in arrears
• The Packer: Commentary: Taking a moment with the 1944 Treaty’s minutes