2017-07-11 P&E Agenda - Attachment 1 to Item 8 - Investigation into Stormwater Pollution from Noosa's Industrial Activities

                 Total Petrol Hydrocarbon C15-C28 Fraction
          7000
                            6030
          6000

          5000

          4000
   ug/L




          3000

          2000

          1000     600                             520
                                        210                   100            200
            0
                    1        2           3          4          5             6

Chart 17: Total Petrol hydrocarbon levels for sampling in 2016 and 2017


Charts 12-17 demonstrate that all pollution levels in the results have declined over time. This is not
only from the 2016 samples to the 2017 samples but also a decline over the sampling period
undertaken in 2017. This could safely be assumed to be due to improved practices undertaken by
industry and increased awareness raising and education of industry operators during inspections
conducted during the project. It was difficult to pin point specific businesses that may have
contributed to the cumulative effect of the results which caused the initial stormwater pollution. But
there have been definite improvements demonstrated from the beginning to the completion of the
onsite inspections undertaken by EHO’s.



3.4         Discussion
3.4.1       Problem sites requiring further rectification in Noosaville
During the inspections there were sites that were of major concern in the Noosaville Industrial estate,
2 of the sites were Motor Vehicle Workshops and the other 3 sites were the concrete batching plants.

A site in Rene Street followed through as requested and cleaned up their workshop and outdoor
areas as well as their drains, and improve the bunding in the oil area of the workshop. See before
and after photos below.

Another premises in Rene Street has reported that they are getting their oil trap drains unblocked
however the oil water separator didn’t appear to be in operation. This site has many problems which
require further monitoring. Both these sites are connected to a main drain to Eenie Creek.




Investigation into Stormwater Pollution from Noosa’s Industrial Activities                     Page 22