Officials with the Los Angeles Regional Water Quality Control Board have voted to require Boeing to better monitor water discharged from Santa Susana Field Lab that is tucked in the hills between San Fernando and Simi valleys. The board unanimously voted last week to approve a new five-year permit that requires Boeing, which along with the federal government owns the Santa Susana site, to perform a more precise level of testing of water discharged from the site. … The vote came a few weeks after the watchdog group Public Employees for Environmental Responsibility, or PEER, released a report showing that two highly toxic chemicals are not being monitored at the Santa Susana Field lab and potentially could leak into the Los Angeles River.