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WAT-3 LANDSCAPE IRRIGATION

Erratum

Xeriscape Gardens

WAT-3-E-OB1-2048


Guidance

2017-10-04

 

Where a xeriscape garden (found under additional guidance p.g 204 of Office TM) has been installed, provisions must be made to remove any 'above-ground terminal fittings' (e.g. sprinkler heads, drip circuits, etc.) irrigation system within twelve months and ensure that the landscape will not receive watering after that time.”

This does not have to include that the ‘underground piping and 'turf valves’ are to be removed, as the removal of extensive lengths of buried pipes and turf valves is disruptive to the landscaping, can incur moderate costs and goes against the concept of future-proofing and material efficiency.

 

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Erratum

Short Report WAT-3 Landscape Irrigation

Erratum Number

WAT03-E-OB1 -1600

Guidance

2016-10-05

Under Short Report in Documentation Requirements replace 'Short report by a suitably qualified engineer detailing' with the following, 'Short report prepared by a suitably qualified professional detailing'

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Erratum

Green Star SA - Office v1 Technical Manual: Page 202-203

Erratum Number
WAT3-E-OB1-0404

Guidance
2012-02-03

Documentation Requirements, documentation table, Design section, after the last bullet point add the following:

Where the additional point is claimed:
• Tender Site Plans
• Confirmation from the Architect(2)

Where the additional point is claimed as ‘Not Applicable’
• Tender Site Plans
• Confirmation from the Architect(3)

AND

Documentation Requirements, documentation table, As-Built section, after the last bullet point add the following:

Where the additional point is claimed
• As-built Site Plans
• Confirmation from the Architect(2)

Where the additional point is claimed as ‘Not Applicable’
• As-built Site Plans
• Confirmation from the Architect(3)

AND

Documentation Requirements, description of documentation, under first 'Confirmation from the architect', insert “(1)” after “Confirmation from architect”.

AND

Documentation Requirements, description of documentation, under second 'Confirmation from the architect', insert “(2)” after “Confirmation from architect”.

AND

Documentation Requirements, description of documentation, after last paragraph, add “Confirmation from Architect (3) that landscaping (including roof, vertical and planter gardens) jointly accounts for less than 30% of the project (calculations are required).”

 

Erratum

Green Star SA - Office v1 Technical Manual: Page 204

Erratum Number
WAT3-E-OB1-0292

Guidance
2011-08-08

Additional Guidance, delete text reading "However, the storage tank must have a minimum of 20 days storage capacity for the toilet flushing demand entered".

 

Credit Interpretation Request

Off-site reclaimed water - Alternative documentation as per 29 April 2014 see *

Credit Interpretation Request Number
WAT3-C-OB1-0266

Ruling
2011-06-09

The use of reticulated off-site reclaimed water is an acceptable way to reduce potable water consumption within the Green Star SA rating system. Although off-site harvesting and recycling systems are not specific attributes of the building seeking Green Star SA certification (as would be the case of an on-site water harvesting and recycling system), the fact that the building has chosen to incorporate the necessary infrastructure to connect their building services to the off-site service is, in this scenario, viewed as a building attribute.

The following additional documentation requirements apply where reticulated off-site reclaimed water is used:

For Green Star SA Design ratings;

• Evidence that the reclaimed water system is operational at the time of practical completion of the building.

• Confirmation from the off-site non-potable water supply vendor that the required supply is available to the project.

For Green Star SA As Built ratings;

• Evidence that the reclaimed water system is operational at the time of practical completion of the building.

• An extract from the contract between the off-site non-potable water supply vendor and the building owner must be provided.

*29 April 2014 TC788
The project team’s proposal for providing alternative evidence to that requested in the WAT1/3/4-C-OB1-0266 CIR’s (evidence that reclaimed water system is operational and confirmation of supply from water vendor) is hereby approved.

We note that the following alternative documentation has been proposed and approved:

1) Site plans of the precinct illustrating;
• The current As Built stormwater reticulation, and attenuation facilities, and
• Construction plans for the stormwater reticulation of the registered project
Water Schematic for registered project, illustrating connection to off-site non-potable water source, and usage of water source

2) A signed short report from system design consultant describing and quantifying the volume of off-site non-potable water that will be available for the registered project each day, and why.

 

Erratum

Green Star SA - Office v1 Technical Manual: Page 201

Erratum Number
WAT3-E-OB1-0207

Guidance
2011-01-06

Credit Criteria, under the heading "Two points are awarded where:" beneath the second bullet point, insert "two" after " . . .less than 1% of the site area, these . . . "

 

Erratum

Green Star SA - Office v1 Technical Manual: Page 201

Erratum Number
WAT3-E-OB1-0208

Guidance
2011-01-06

Credit Criteria, last paragraph, insert "third" after ". . . less than 30% of the site area, this . . ."

 

Technical Clarification

Non-permanent landscape

Technical Clarification Number
WAT3-T-OB1-0101

Guidance
2010-09-07

Non-permanent landscape, such as potted plants, planter boxes, or other non-insitu landscape features, either internally or externally located, which can be removed or relocated, are not considered part of the 'base building' and are therefore not within the scope of the Wat-3 credit. Irrigation demands for such non-permanent landscape are to be excluded from calculations to demonstrate compliance with the Credit Criteria.

 

Technical Clarification

Combined initiatives

Technical Clarification Number
WAT3-T-OB1-0102

Guidance
2010-09-07

It is an acceptable method to meet the Credit Criteria through a combination of some or all of the design initiatives noted in the Wat-3 Additional Guidance (i.e. xeriscape, water-efficient irrigation systems and non-potable water for landscape irrigation). If Project teams elect to meet the Credit Criteria using a combination of initiatives, the established reference case, the proposed savings of each inititative and the overall savings must be clearly communicated in the documentation.

 

Technical Clarification

Groundwater

Technical Clarification Number
WAT3-T-OB1-0385

Guidance
2010-07-06

Groundwater seeping into building basements may be included as non-potable water in calculations for this credit. However, project teams must submit calculations of the quantity of groundwater available for use, clearly demonstrating reasonable assurance that the quantity calculated will be available in future. These calculations must be submitted for approval via CIR prior to project submission.

 

 

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