The source of E. coli contamination at a popular Auckland beach may never be found.
Auckland Council has been investigating high levels of the bacteria at Takapuna Beach since 2013.
A council report says some testing of stormwater systems has found E. coli levels that are above human health guidelines.
It says CCTV cameras will be used to monitor unmapped stormwater pipes and private connections.
The report says the council is already tracking unconsented connections, but finding the source may be impossible.
Two outflows at The Strand are set to be merged and stormwater filters are being considered.
Â
Take your Radio, Podcasts and Music with you