Constructed wetland and sedimentation basin - condition assessment

• Site name

• Asset ID

• Conducted on

  Date

• Audit conducted by

  Daniel Idczak

  Thanh Nguyen

• Locality

  Select Balnarring Baxter Bittern Dromana Hastings Mornington Mt Eliza Mt Martha Portsea Rosebud Rye Safety Beach Somerville Sorrento Tyabb OTHER

  • Balnarring
  • Baxter
  • Bittern
  • Dromana
  • Hastings
  • Mornington
  • Mt Eliza
  • Mt Martha
  • Portsea
  • Rosebud
  • Rye
  • Safety Beach
  • Somerville
  • Sorrento
  • Tyabb
  • OTHER
• Address
  Address

• Control

  Council

  Melbourne Water

  Other

• Conditions

  Dry ground conditions

  Wet ground conditions

• Weather

  Select Sunny Overcast Rain Heavy Rain Light Windy Sunny and windy Rain and windy

  • Sunny
  • Overcast
  • Rain Heavy
  • Rain Light
  • Windy
  • Sunny and windy
  • Rain and windy

• Date of last rainfall

  Date

• Photo of entire asset & surroundings

  Media

• Asset function

• Asset Function: (a general description)
  - location
  - catchment
  - key features eg, concrete apron to assist in sediment removal
  - predominant plant species (if present)
  - depth
  - current condition

• Type of catchment

• Type of catchment:
  eg. pavement only, grassed, garden beds, residential, industrial, other

• Previous inspections

  Date

Independent structures (part of asset)

• This section is for structures that are included as part of the asset. Many signs, bollards etc will have their own asset ID.
  
  Using the condition assessment manual as a guide, rate the individual component. Take photographs to corroborate the rating, and make note of the material and any other important points in the description, including the number of components (if multiple).

• Fencing defects?

  Yes

  No

  N/A

• Photo of defects

  Media

• Description of defects

• Bollards defects?

  Yes

  No

  N/A

• Photo of defects

  Media

• Description of defects

• Signage defects?

  Yes

  No

  N/A

• Photo of defects

  Media

• Description of defects

Connected surfaces (part of asset)

• Road defects?

  Yes

  No

  N/A

• Photo of defects

  Media

• Description of defects

• Footpath defects?

  Yes

  No

  N/A

• Photo of defects

  Media

• Description of defects

Civil structures

• Using the condition assessment manual as a guide, rate the individual component. Take photographs to corroborate the rating, and make note of the material and any other important points in the description, including the number of components (if multiple).

• Inlet

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• The inlet is likely to be a pipe, and may be partially or fully submerged. Make the most complete observation possible, allowing for the potential for blockages of inlet sections that are underwater.

• Outlet

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• The outlet of a constructed wetland is likely to include a grated pit structure housing a baffle plate. This may not be directly on the water's edge so look around the perimeter if it isn't immediately clear.

• Transfer structures

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• Where a sediment basin and wetland are separate bodies of water, they will be connected by a transfer structure. This could be a porous rock weir, or it could be a concrete pipe linking an outlet pit and inlet. When describing the condition make note of the structure type.

• High flow bypass

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• This will not be present for all assets. Look for a grassed channel or alternate pipe alignment.

• Access to structures

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• Access for vehicles and/or maintenance crews must be available to all structures. If not, please highlight in audit results and prioritise rectification works.

Surfaces

• Using the condition assessment manual as a guide, rate the individual component. Take photographs to corroborate the rating, and make note of the material and any other important points in the description, including the number of components (if multiple).

• Batter slopes

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

Vegetation

• Grass/turf (on batters)

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• Treatment vegetation - fringe planting

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• This is the ephemeral vegetation at the water's immediate edge. Use the condition assessment manual as a guide; a surface coverage of at least 80% is required for an 'excellent' condition.

• Treatment vegetation - shallow marsh

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• This is the aquatic and ephemeral vegetation within the water body up to depths of 150mm. Use the condition assessment manual as a guide; a surface coverage of at least 80% is required for an 'excellent' condition.
  
  Shallow marsh should make up about 25% of the water body area.

• Treatment vegetation - deep marsh and submerged marsh

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• This is the aquatic and ephemeral vegetation within the water body up to depths of 700mm. Use the condition assessment manual as a guide; a surface coverage of at least 80% is required for an 'excellent' condition.
  
  Deep marsh should make up about 50% of the water body area.

• Treatment vegetation - open water

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

• This is the aquatic and vegetation within the water body at depths of greater than 700mm. This water is expected to have much sparser planting.
  
  Open water should make up only about 20-25% of the water body area.

• Other vegetation/grasses/trees

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Evidence of condition

  Media

• Description of condition

Asset works priority

• Visibility

  High

  Medium

  Low

  N/A

• Visibility: Examples of high visibility are shopping precincts, landscaped public open space, general high traffic areas.

• Catchment

  High

  Medium

  Low

  N/A

• High catchment priority (if able to be determined) includes catchments that outfall directly to the bays, or are upstream of sensitive areas

• Treatment

  High

  Medium

  Low

  N/A

• Treatment: High asset priority (if able to be determined) would include an asset that is the lone treatment in a catchment, or performs a significant proportion of treatment within a catchment

• Surrounds

  High

  Medium

  Low

  N/A

• Surrounds: Examples of low priority are assets in disturbed areas such as residential streets with ongoing construction that will stymie maintenance efforts

Initial assessment

• Are there any elements or issues that the assessors consider to be a risk to health and safety? Please provide a full description

• Health and safety concerns?

  Yes

  No

• Health and Safety issues

• Corrective maintenance tasks required (Not planned)

  Select Other Feature and level survey of asset Ongoing assessment over varied weather conditions and seasons Creation of flow distribution Level resetting/development of extended detention/significant re-shaping of surface Significant re-vegetation and establishment Major removal of plants/trees Reconstruction of civil components Re-design in consultation with client

  • Other
  • Feature and level survey of asset
  • Ongoing assessment over varied weather conditions and seasons
  • Creation of flow distribution
  • Level resetting/development of extended detention/significant re-shaping of surface
  • Significant re-vegetation and establishment
  • Major removal of plants/trees
  • Reconstruction of civil components
  • Re-design in consultation with client

• Other maintenance

• Overall assessment category

  Maintain

  Rectify

  Rectify - delay

  Decommission

  Decommission -redefine

Final notes

• Based on your observation of the total function of the asset and your individual condition ratings of components, provide an overall rating for the asset. The Condition Assessment Manual contains general guidance.

• Overall condition rating

  Select N/A - Not present 0 - As new 1 - Near new 2 - Excellent 3 - Very good 4 - Good 5 - Fair 6 - Fair to poor 7 - Poor 8 - Very poor 9 - Extremely poor 10 - Failed

  • N/A - Not present
  • 0 - As new
  • 1 - Near new
  • 2 - Excellent
  • 3 - Very good
  • 4 - Good
  • 5 - Fair
  • 6 - Fair to poor
  • 7 - Poor
  • 8 - Very poor
  • 9 - Extremely poor
  • 10 - Failed

• Overall comment