Water Quality at the Beach

Elsewhere “sewage and contaminated runoff from outdated, under-funded treatment systems” is polluting beaches that are increasingly being closed to the public.

“ ...Careless urban sprawl in coastal areas is devouring wetlands and other natural buffers such as dunes and beach grass that would otherwise help filter out dangerous pollution.“

Boat discharges and dog feaces increase the load.
The mash up of water, sewage and toxic industrial waste has a long history of “deceit and collusion”.Local beaches are ranked here for both faecal coliforms and enterococci. Some of the waterborne illnesses like gastroenteritis, dysentery, hepatitis, respiratory ailments etc. probably hit people 'out of the blue'. Toxic waste such as heavy metals etc also show their effects only after some time.
Manly beach mix
Suburbs draining toxins into Manly beach
More on Human Waste on Beach