Information
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Document No.
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Constructed Wetland
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Audit Title
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Location
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Conducted on
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Date of last rainfall
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Weather
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If other please specify:
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Prepared by
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Personnel on Site
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Bioretention Plan (if none provided please sketch, showing key features i.e. locations of inlets, outlets overflow, etc.)
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Additional Information
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Photos of Site (including description)
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1
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1: Description
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2
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2: Description
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3
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3: Description
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4
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4: Description
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5
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5: Description
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6
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6: Description
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General comments and sketches
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Add drawing
SURROUNDS
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Damaged or removed structures e.g. traffic bollards
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Performance indicators (PI):
No damage that poses a risk to public safety or structural integrity -
Condition Rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance Undertaken**
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Additional work needed
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Photo (if required)
INLET
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Erosion
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Performance indicators (PI): Inlet is structurally sound and there is no evidence of erosion or subsidence/settlement
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (if required)
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Damaged or removed structures e.g. pit lids or grates
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Performance indicators (PI): No damage that poses a risk to public safety or structural integrity
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (if required)
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Sediment, litter, or debris
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Performance indicators (PI): No blockage
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (if required)
Coarse Sediment Forebay
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Is there a Coarse sediment fore bay?
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Erosion
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Performance indicators (PI): Minor erosion only that does not pose a risk to public safety or structural integrity and would not worsen if left unattended
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Condition Rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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Additional work needed
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Photo (If required)
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Sediment
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Performance indicators (PI): Coarse sediment forebay <75% full and no litter
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Condition Rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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Additional work needed
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Photo (If required)
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
BATTER SLOPES AND BASE INVERT
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Erosion
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Performance indicators (PI): Minor erosion only that does not pose a risk to public safety or structural integrity and would not worsen if left unattended
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Crust of fine sediment
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Performance indicators (PI): No surface crusting
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Depressions or mounds
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Performance indicators (PI): No surface depressions or mounds > 100mm
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Hydraulic conductivity or permeability
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*** Presence of Typha is an indicator of poorly draining filter media
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Performance indicators (PI): Filter media is draining freely, whereby water is not ponded on the surface for more than 12 hours after rainfall and there is no obvious impermeable or clay-like surface on the filter media**
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Underdrains/clean out points
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Performance indicators (PI): Clean out points not damaged and end caps securely in place
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Litter
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Performance indicators (PI): Maximum 1 pieces litter per 4 m²
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Unusual odours, colours, or substances (e.g. oil and grease)
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Performance indicators (PI): None detected
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Vegetation
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Performance indicators (PI): Minimum 95% vegetation cover on batters (minimal bare batches)
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Performance indicators (PI): Plants healthy and free from disease
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Performance indicators (PI): Average plant height >500mm
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Algal or moss growth
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Performance indicators (PI): Maximum 10% of surface covered in algae
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Performance indicators (PI): No moss growth
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
OUTLET (RISER OVERFLOW WEIR< PIPE OR OUTFALL)
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Erosion
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Performance indicators (PI): Outlet is structurally sound and there is no evidence of erosion or subsidence/settlement, including around edges of rock protection or toe of weir for large systems
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Damaged or removed structures e.g. Pit lids or grates
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Performance indicators (PI): No damage that poses a risk to public safety or structural integrity
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Sediment, litter, or debris
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Performance indicators (PI): No blockage
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
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Photo (If required)
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Outlet freely draining to receiving drainage or waterway
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Performance indicators (PI): No downstream impediments to the release of water, no erosion or damage to the outfall structure , and no evidence of malfunction (e.g. excessive sediment accumulated)
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Condition rating
- 1: PI met
- 2: PI met after maintenance activity undertaken
- 3: Additional maintenance needed
- 4: Rectification may be needed
- NI: Not inspected
- NA: Not applicable
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Photo (If required)
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** Quantify where possible e.g. amount of sediment or litter removed
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Maintenance undertaken**
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Additional work needed
Closure
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Time taken to complete inspection/maintenance
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Signature of attendee
