5179SQMP_2 PearsonsRd_Feb2021_Rev2_

Initial Volume (m^3)
Extended detention depth (m)                           0.15                0.2           0.1            0.1           0.1          0.2            0.2
Number of Rainwater tanks
Permanent Pool Volume (cubic metres)
Proportion vegetated
Equivalent Pipe Diameter (mm)
Overflow weir width (m)                                  2                  1            0.2            0.2           0.2           1             1
Notional Detention Time (hrs)
Orifice Discharge Coefficient
Weir Coefficient                                        1.7                1.7           1.7            1.7           1.7          1.7            1.7
Number of CSTR Cells                                     3                  3             3              3             3            3             3
Total Suspended Solids - k (m/yr)                      8000               8000           8000          8000          8000         8000           8000
Total Suspended Solids - C* (mg/L)                      20                 20             20            20            20            20            20
Total Suspended Solids - C** (mg/L)
Total Phosphorus - k (m/yr)                            6000               6000           6000          6000          6000         6000           6000
Total Phosphorus - C* (mg/L)                           0.13               0.13           0.13          0.13          0.13          0.13          0.13
Total Phosphorus - C** (mg/L)
Total Nitrogen - k (m/yr)                              500                500            500            500          500           500           500
Total Nitrogen - C* (mg/L)                              1.4                1.4           1.4            1.4           1.4          1.4            1.4
Total Nitrogen - C** (mg/L)
Threshold Hydraulic Loading for C** (m/yr)
Horizontal Flow Coefficient                              3                  3             3              3             3            3             3
Reuse Enabled                                           Off                Off           Off            Off           Off          Off            Off
Max drawdown height (m)
Annual Demand Enabled                                   Off                Off           Off            Off           Off          Off            Off
Annual Demand Value (ML/year)
Annual Demand Distribution
Annual Demand Monthly Distribution: Jan
Annual Demand Monthly Distribution: Feb
Annual Demand Monthly Distribution: Mar
Annual Demand Monthly Distribution: Apr
Annual Demand Monthly Distribution: May
Annual Demand Monthly Distribution: Jun
Annual Demand Monthly Distribution: Jul
Annual Demand Monthly Distribution: Aug
Annual Demand Monthly Distribution: Sep
Annual Demand Monthly Distribution: Oct
Annual Demand Monthly Distribution: Nov
Annual Demand Monthly Distribution: Dec
Daily Demand Enabled                                    Off                Off           Off            Off           Off          Off            Off
Daily Demand Value (ML/day)
Custom Demand Enabled                                   Off                Off           Off            Off           Off          Off            Off
Custom Demand Time Series File
Custom Demand Time Series Units
Filter area (sqm)                                      120                 25            1.5            1.5           1.5           40            7.5
Filter perimeter (m)                                    44                0.01           4.8            4.8           4.8          0.01           16
Filter depth (m)                                        0.4                0.4           0.4            0.4           0.4          0.4            0.4
Filter Median Particle Diameter (mm)
Saturated Hydraulic Conductivity (mm/hr)               250                250            250            250          250           250           200
Infiltration Media Porosity                            0.35               0.35           0.35          0.35          0.35          0.35          0.35
Length (m)
Bed slope
Base Width (m)
Top width (m)
Vegetation height (m)

                                                                      Vegetated with Vegetated with Vegetated with Vegetated Vegetated with Vegetated with
                                                  Vegetated with        Effective      Effective      Effective    with Effective Effective   Effective
                                                 Effective Nutrient      Nutrient       Nutrient       Nutrient       Nutrient    Nutrient     Nutrient
                                                 Removal Plants         Removal        Removal        Removal        Removal      Removal     Removal
Vegetation Type                                                           Plants         Plants         Plants         Plants      Plants       Plants
Total Nitrogen Content in Filter (mg/kg)               800                400            400            400          400           400           400
Orthophosphate Content in Filter (mg/kg)                50                 50             50            50            50            50            50
Is Base Lined?                                          No                 No             No            Yes          Yes           No             No
Is Underdrain Present?                                 Yes                Yes            Yes            Yes          Yes           Yes           Yes
Is Submerged Zone Present?                             Yes                 No             No            No            No           No             No
Submerged Zone Depth (m)                               0.15
B for Media Soil Texture                                13                 13             13            13            13            13            13
Proportion of upstream impervious area treated
Exfiltration Rate (mm/hr)                              0.36               0.36           0.36           3.6           3.6          0.36          0.36
Evaporative Loss as % of PET                           100                100            100            100          100           100           100
Depth in metres below the drain pipe
TSS A Coefficient
TSS B Coefficient
TP A Coefficient
TP B Coefficient
TN A Coefficient
TN B Coefficient
Sfc                                                    0.61               0.37           0.37          0.37          0.37          0.37          0.37
S*                                                     0.37               0.22           0.22          0.22          0.22          0.22          0.22
Sw                                                     0.11               0.11           0.11          0.11          0.11          0.11          0.11
Sh                                                     0.05               0.05           0.05          0.05          0.05          0.05          0.05
Emax (m/day)                                          0.008               0.008         0.008          0.008         0.008        0.008         0.008
Ew (m/day)                                            0.001               0.001         0.001          0.001         0.001        0.001         0.001
IN - Mean Annual Flow (ML/yr)                          20.5               2.09          0.818          2.17          0.475         1.19           3.1
IN - TSS Mean Annual Load (kg/yr)                   3.03E+03              445            171            456          100           251           647
IN - TP Mean Annual Load (kg/yr)                       6.83               0.864         0.343          0.915         0.198         0.49          1.29
IN - TN Mean Annual Load (kg/yr)                       35.5               4.34           1.7           4.45          0.979         2.46          6.38
IN - Gross Pollutant Mean Annual Load (kg/yr)          260                49.8           19.5          51.7          11.3          28.5          73.8