[Company Name]
Stormwater Management Plan
[Company Name and Logo]
STORMWATER
MANAGEMENT PLAN
[Company Name]
[Project]
[Location]
Issue
Description
Approved By
Signed
Date
[Company Name]
Table of Contents
1
2
3
4
5
6
Introduction and Site Description
Stormwater Quality
2.1 Stormwater Management Practices
2.2 Water Quality Objectives
2.3 Available Management Practices and Suitability
Proposed Stormwater Treatment
3.1 Summary
3.2 Stormwater Treatment System Details
MUSIC Model
4.1 MUSIC Model Setup
4.2 MUSIC Model Results
Installation and Maintenance
5.1 Installation
5.2 Construction Phase Management
5.3 Operational Phase Management
Conclusion
Appendices / Figures
1. Site Plan
2. MUSIC Model Layout
3. Maintenance Checklist / Plan
Stormwater Management Plan
[Company Name]
Stormwater Management Plan
1. Introduction and Site Description
-
Location;
Existing land use and environment;
Size of land and development;
Proposed development;
Description of the proposed facility and use including any activities that have the potential
to impact on stormwater quality (i.e. fuel storage, vehicle workshop, washdown bay etc);
Site survey and levels; and
Intent of the Stormwater Management Plan;
[Company Name]
Stormwater Management Plan
2. Stormwater Quality
2.1 Stormwater Management Practices
-
Description of how stormwater will be managed during and post construction (i.e. erosion
and sediment control plan, water sensitive urban design).
Detail how high risk activities will be managed (i.e. segregation from stormwater system).
2.2 Water Quality Objectives
-
Description of the stormwater quality objectives to be met in accordance with PBPL’s
Technical Guidelines and any other relevant guidelines; and
Pollutants of concern.
2.3 Available Management Practices and Suitability
-
Description of available stormwater management practices (see table below);
Explanation as to why each of these would / would not be suitable; and
Which treatment method will be investigated / used.
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Stormwater Management Plan
[Company Name]
Stormwater Management Plan
3. Proposed Stormwater Treatment
3.1 Summary
-
-
Summary of catchment area/s and proposed treatment. See table below for example.
Catchment Name
Land Use
Area (ha)
Car Park and
Hardstand
Office Building
Grassed Area
Pavement
1
Proposed
Stormwater
Treatment
Bio-retention basin
Pavement / Building
Grass
2
1
Litter baskets
Grass swale
Include a figure indicating the different catchment areas. Alternatively this information can
be included on the site plan.
3.2 Stormwater Treatment System Details
-
Further detail regarding each of the stormwater treatment systems proposed;
For example, if there is a bio-retention basin, provide details on –
o Nominal footprint (m2)
o Extended detention depth (m)
o Filter surface area (m2)
o Seepage loss (mm/h)
o Filter area (m2)
o Filter depth (m)
o Filter media diameter (mm)
o Saturated hydraulic conductivity (mm/hr)
o Depth below underdrain (% of filter depth)
o Overflow weir width (m)
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Stormwater Management Plan
4. MUSIC Model
4.1 MUSIC Model Setup
-
Summary of how the MUSIC model was set up;
Catchment properties;
Rainfall data that was used;
Source nodes for input values;
Impervious % used;
Any excluded areas (i.e. roof);
Include a schematic of the MUSIC model layout (can be in an Appendix); and
Note: parameters for a Commercial or Industrial catchment must be adopted for the Port of
Brisbane.
4.2 MUSIC Model Results
-
Summary of MUSIC model results. See table below for example.
Pollutant
Without
treatment (kg/a)
Following
treatment (kg/a)
Reduction (%)
Total Suspended
Solids
Total
Phosphorous
Total Nitrogen
Gross Pollutants
27,400
5,010
81.7
Water Quality
Objective
(% reduction)
80
42.7
13.4
68.6
60
145
1,420
78.0
0
46.0
100
45
90
-
Will the proposed stormwater treatment methods meet the adopted water quality
objectives? If not, provide explanation and reasoning.
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5.
Stormwater Management Plan
Installation and Maintenance
5.1 Installation
-
Details of planting and species if there is to be a bio-retention basin;
Details of soil filter media for bio-retention basin; and
Installation details for other stormwater treatment measures.
5.2 Construction Phase Management
-
Impact from sediment loads and other construction activities (i.e. dewatering, wastewater,
cement pours, cleaning of equipment, stockpiles, waste, fuel storage, etc); and
Measures in place to control impacts.
5.3 Operational Phase Management
-
-
Maintenance schedule during establishment, periods of significant environmental
disturbance and ongoing;
May use guidelines such as Healthy Waterways’ Water Sensitive Urban Design Technical
Design Guidelines (June 2006) and BCC’s Draft Water Sensitive Urban Design Engineering
Guidelines (August 2005);
Steps that will be undertaken for maintenance of each of the stormwater treatment
measures / maintenance checklist;
Inspection frequency; and
Access requirements for maintenance.
Details of any stormwater monitoring.
[Company Name]
6. Conclusion
-
Summary of the following:
o Site area / catchments;
o Proposed stormwater treatment methods;
o MUSIC modelling results; and
o Compliance with water quality objectives.
Stormwater Management Plan