MI CHELLE HAW RYLUKMINI STRY OF ENVIR ONMENT

29 OCTOBER 2015

Progress Report on Remediation Options in Elk/Beaver Lake

The Background

2013 steering committee MOE, FLNRO, CRD, District of Saanich, R. Nordin (BCLSS)2014-2015 Comprehensive sampling

(GRR, District of Saanich, R. Nordin, MOE, FLNRO, PSS)2015 Reports:

Overview, status & P budget - Dr. R. Nordin

Evaluation of remediation options - Freshwater Research

Updated Water Quality Objectives….- MOE

Keep in Mind….

1) There are no cheap, easy, one-size-fits-all fixes

2) Lake remediation has to be a two-pronged approach

The immediate problem Watershed management

The Draft Evaluation

Review & update external P load vs. internal P load

Potential remediation techniques

Data gaps & limitations

The Draft Evaluation - [P Load]

Review & update external P vs. internal P

224 kg/yr + 1,585 kg/yr = All P (external) (internal)

O’Donnel Creek

Ephemeral Creeks Atmosphere

Septic systemsBirds

Agriculture

Sediment BankAquatic Vegetation

The Draft Evaluation - Remediation Techniques

Physical treatment destratification, artificial mixingaeration & oxygenation

Flow Managementhypolimnetic withdrawal

P PrecipitationPhoslock

Next Steps

ID gaps & limitationsRevised remediation report December 2015Steering committee review of the

recommended optionsProcess of approvalStakeholder consultationFundraising and approvalsImplementation

Please don’t shoot the messenger