Attachment 7B - Site Based Stormwater Manamgment Plan by ADG.pdf

                                                   Controlling Factors                                                 Points         Score         Checking
                                                    Clay loam                                                             2
                 Proposed Amendments August 2015
The Noosa Plan



                                                    Clay soil                                                             2
                                                   Anticipated duration of site disturbance: (see 2 below)
                                                    Duration < 2 weeks                                                      0
                                                    2 weeks  Duration < 3 months                                           2             5
                                                    3 months  Duration < 6 months                                          4
                                                    Duration > 6 months                                                     5
                                                   Month that works are undertaken: (see 3 below)
                                                    August, September                                                       0
                                                    April, May, June, July, November, October                               1              1
                                                    March December                                                          2
                                                    January February                                                        3
                                                   Offsite sediment control (i.e. down slope of the soil
                                                   disturbance):
                                                    Score 1 point if there is no purpose built, operational                 1
                                                       and well maintained sediment traps (eg. sediment                                     1
                                                       basin, gross pollutant trap or purpose built wetland)
                                                       to catch sediment before it enters a water body with
                                                       environmental values (eg. creek, natural wetland,
                                                       river or bay) (see 4 below)
                                                   Run-off entering the site:
                                                    Score 1 point if stormwater run off entering the site is                1              0
                                                       not diverted away from the soil disturbance
                                                   Extent of site disturbance:
                                                    Score 2 points if building work requires reshaping of
                                                       the ground surface (eg. ‘cut and fill’ works) (see 5                  2
                                                       below)                                                                               2
                                                     Score 5 points if the area to be disturbed is greater                  5
                                                      than 600m²
                                                   Works within environmentally sensitive areas:
                                                    Score 11 points if the disturbance is within the banks
                                                      of a watercourse (see 6 below)                                        11
                                                    Score 5 points if the disturbance is within 50m of the                                 2
                                                      top of bank of a watercourse                                           5
                                                    Score 2 points if the disturbance is between 50m
                                                      and 100m of the top of bank of a watercourse                           2

                                                   TOTAL SCORE (See 7 & 8 below)                                                           13           LOW
                                                   Notes:
                                                       1. Where there is more than one type of soil on the site, select the category with the highest point value.
                                                       2. The time, from when the building site will first become vulnerable to erosion, to the time the soil will
                                                          be fully stabilised (eg. grassing).
                                                       3. If this time span covers more than one category, select the category with the highest point value.
                                                          Note that if there is no grass/vegetation cover on the site before building work has started, the time
                                                          span starts from the time this form is completed.
                                                       4. If you are not sure, score 1 point.
                                                       5. For the purpose of this form, ‘cut and fill’ works are those that will result in a steep batter or retaining
                                                          wall above and/or below the building slab, greater than 1 metre in height. If the building slab has
                                                          already been fully cut and stabilised (eg. grassed) during the subdivision stage, score 0 points.
                                                       6. Watercourse means any clearly identifiable creek, stream or river, whether flowing permanently or
                                                          intermittently.
                                                       7. For a high risk site, the total score is  14 points.
                                                       8. For a low risk site, the total score is < 14 points.




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