San Francisco Bay has been contaminated by PCBs, "a legacy of PCBs spread widely across the land surface of the watershed, mixed deep into the sediment of the Bay, and contaminating the Bay food web". Levels of PCBs in fish and shellfish exceed thresholds for safe consumption. Signs around the Bay warn anglers of which species to avoid. State water quality regulators set a Total Maximum Daily Load for PCBs require city and county governments around the Bay to implement control measures to limit PCBs in urban runoff. An important part of the second, revised version of this permit was the requirement for municipalities to install green infrastructure with a goal of reducing pollutant levels in stormwater.
San Francisco Bay has been contaminated by PCBs, "a legacy of PCBs spread widely across the land surface of the watershed, mixed deep into the sediment of the Bay and contaminating the Bay food web". Levels of PCBs in fish and shellfish exceed thresholds for safe consumption Signs around the Bay warn anglers of which species to avoid. State water quality regulators set .a Total Maximum Daily Load for PCBs require city and county governments around the Bay to implement control measures to limit PCBs in urban runoff. An important part of the second, revised version of this permit was the requirement for municipalities to install green infrastructure with a, goal of reducing pollutant levels in stormwater.