5179SQMP_2 PearsonsRd_Feb2021_Rev2_

                                                                                   Callaghan & Toth




4.4      TREATMENT DEVICES DESIGN DETAILS

Below in Table 4.3 are general design details for the Conventional Bioretention Systems.


TABLE 4.3: Design Features of Stormwater Treatment Systems

                 Filter     Overall      Total   Filter   Transition   Extended      Submerged
SYSTEM           S.A.        S.A.        Depth   Depth     Drainage    Detention      Zone with
                 (m2)        (m2)         (m)     (m)     Layers (m)   Depth (m)     Carbon (m)

Bio Basin
                  120          150       0.95     0.4        0.4         0.15             0.15
   BB4

 Bio Pod
                  7.5          7.5       0.85     0.4        0.25         0.2              n/a
   BB1
 Bio Pod
                   25           25       0.85     0.4        0.25         0.2              n/a
   BB2
 Bio Pod
                   10           10       0.85     0.4        0.25         0.2              n/a
   BB3
Tree pits         1.5          1.5       0.75     0.4        0.25         0.1              n/a




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2035 2 Pearsons Road IWMP – Revision 2                                          February 2021