Consultant for Lake Te Koutu

Leny Samuel made this Official Information request to Waipa District Council

The request was successful.

From: Leny Samuel

Dear Waipa District Council,

What is the name of the consultant hired by Waipa district council to consult about improving water quality of Lake Te Koutu in Cambridge?

What are the specific reasons that lead the council to believe that nanobubbles technology would not be effective or would have only limited benefits?

Yours faithfully,

Mr. Kurian S.

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Waipa District Council


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From: Bruce Airey
Waipa District Council

Dear Mr. Kurian S,

 

In response to the information requested please see the following
responses in red -

 

What is the name of the consultant hired by Waipa district council to
consult about improving water quality of Lake Te Koutu in Cambridge?

 

The consultant was GHD  

 

What are the specific reasons that lead the council to believe that
nanobubbles technology would not be effective or

would have only limited benefits?

 

Lake is unlikely to be permanently stratified, due to shallow depth and
stormwater inflow.

Introduction of oxygen can limit influence of anoxic conditions in the
water column, but it is not known whether the lake is

exhibiting these conditions or driving degradation of lake quality.
Kessels (2015) point to saturation of oxygen, suggesting

further oxygen enrichment would result in limited benefits.

Multiple alternative drivers for degradation and range of assumptions make
it unclear whether the system will perform as

proposed.                       

 

 

Yours faithfully,

 

Bruce Airey

...........................................................................................................

Bruce Airey Manager Community Facilities  WAIPA DISTRICT COUNCIL

[1][email address] | [2]www.waipadc.govt.nz

DDI: 07 823 3822 | FAX: 07 872 0033| MOB: 027 202 1708

 

Te Kaunihera ā Rohe o Waipa

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This email message is confidential between the sender and the intended
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you have received this
message in error, please notify Waipa District Council immediately by
telephoning 0800 924 723
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