Marmion Marine Park management Plan - Department of ...

Proposed sites, development and construction methods for boat ramps, other than thoseidentified, must have prior approval from CALM.24.9 DRAINAGE AND DISCHARGEStormwater drains enter Park waters at only a few locations bordering the City of Stirling and the Cityof Wanneroo. Secondary treated effluent from the Beenyup Waste Water Treatment Plant is pumped1.6km offshore. This is to be duplicated. The EPA gave qualified approval, subject to conditionsensuring that the combined nutrient loading from both pipelines does not exceed the maximum loadset for the original single outfall (EPA, 1990). The EPA also required the Water Authority of W.A. toconduct studies of water circulation, nutrient levels, and other matters relating to the potential impactsof the Beenyup outfalls. Drainage and discharge into the Hillarys Boat Harbour is regularlymonitored and must meet standards established by the EPA.Actions1. Maintain liaison with the Water Authority, EPA, and the City of Wanneroo toensure adequate conditions are set to minimise the detrimental environmentaleffects of outfalls.2. Ensure the EPA recommendations that limit nutrient levels and require appropriateresearch and monitoring programs are implemented.24.10 LITTERLitter is common and obvious at most times on beaches in the Marine Park. Both recreational usersand commercial fishers contribute to the litter problem, which detracts from the Park environment,aesthetically and biologically. Some types of litter, for example plastic binders of 'six-packs', can killwildlife, particularly sea birds.Actions1. Develop education programs to encourage the proper disposal of litter. Liaise withlocal authorities and other relevant agencies regarding the provision of disposal facilitiesonshore.52