The waters on both sides of the pier are popular with swimmers, surfers and boogie-boarders, except when an inconvenient current brings sewage and runoff from the mouth of the Tijuana River down the coast.
Although political push-back has brought sewage treatment to the immediate neighborhood where the plant itself is located, other un-annexed black neighborhoods do not receive the service while more distant, non-contiguous annexed areas do.
With most of the sewage in the greater Rio area flowing untreated into area rivers, its showcase beaches and the bay, Correa estimated a $3.8bn investment would be needed to bring sewerage to the entire metropolitan area.
It will cost £40m and will bring new sewage treatment plants to Glen Mona, Dalby, Maughold Village, Port Lewaigue, Glen Maye and Corony.
And they inevitably bring environmental problems: sewage, agricultural run-off and increased burning of fossil fuels, all of which produce large quantities of pollutants, which find their way into the bay.As far as the health of marine ecosystems go, perhaps no single pollutant does more harm than nitrogen.
Rain water captured by drain sewers on city streets flows into the same pipes that bring waste water to sewage treatment plants.
** For example, parrotfish occasionally nip off coral for calcium, and the coral heals; farm runoff or sewage also bring huge amounts of bacteria; when nutrient rich pollution is present, most corals die from bacterial infection of their parrotfish wounds.
Officials have spent approximately $35 billion over three decades improving the quality of the waters surrounding the city and have improved systems to capture and store rainwater and sewage, bringing down the frequency and volume of overflows, the city's Department of Environmental Protection wrote in a statement.
They could bring expertise in municipal administration, sewage treatment, banking, electricity generation, and countless other disciplines needed to rebuild a war-torn country.
In Homs, a rebel from that city said, the opposition recently completed a two-mile tunnel, foul from crossed sewage lines, to bring in supplies and evacuate the sick and wounded.
