Ministry of Environment
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Report: Mission Creek Groundwater - Surface Water Interactions Project: Analysis of Discharge and Water Level Records

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The degree of connectivity between surface water in Mission Creek, the largest tributary to Okanagan Lake, and groundwater was quantified using two methods. Piezometers were installed at five locations along the lower 25 km of Mission Creek, and vertical hydraulic head gradients were calculated. Hydrometric stations were operated on the main channel as well as significant tributaries and diversions, and gaining and losing conditions were identified for nine reaches during non-high flow periods.

Author:  Neumann, Natasha

Date Published:  Dec 2018

Report ID:  55983

Audience:  Government and Public

The degree of connectivity between surface water in Mission Creek, the largest tributary to Okanagan Lake, and groundwater was quantified using two methods. Piezometers were installed at five locations along the lower 25 km of Mission Creek, and vertical hydraulic head gradients were calculated. Hydrometric stations were operated on the main channel as well as significant tributaries and diversions, and gaining and losing conditions were identified for nine reaches during non-high flow periods. Generally, gaining conditions were found upstream of Hollywood Road where the stream flows through a narrow incised valley, and losing conditions occurred downstream of KLO Road where the creek flows along alluvial fan deposits. Gaining and losing conditions were more variable in the region between KLO Road and Hollywood Road where there was no dominant control on the direction of the hydraulic gradient.

Report Type
  Water
 
Subject
  Region - Okanagan
  Watershed Groups - 300 - Columbia
  Watershed Groups - 310 - Okanagan
  Water Information - Groundwater
  Water Information - Hydrometric / Hydrology
  Water Information - Water Quality
 


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