Otara Creek Catchment
Springs Road
(from Otara Creek Catchment Comprehensive Catchment Study
and Management Plan Options - Report Prepared by GHD Limited,
March 2001)
The Springs Road catchment is the next major catchment after the Kerwyn Avenue catchment with the potential of contributing industrial contamination to the Otara Lake.
Meritec Limited has recently prepared a report for Manukau City Council assessing the feasibility of possible stormwater treatment options for this catchment. The report identifies an existing public open space area off Springs Road that could be used for the treatment of stormwater before it discharges into the estuarine environment of Otara Creek.
Meritec’s recommended solution is for a wetland system
which will remove approximately 40 to 50% of suspended solids
plus additional fine colloidal and dissolved pollutants by
the macrophyte (plant) sections of the wetland. Consent applications
for this wetland system will be lodged with the ARC in 2001.
Litter Traps ( from Meritec - Tamaki Estuary Steering
Group Presentation)
Litter traps installed on two main tributaries of
the lake.