Central Lake Ontario Conservation Authority
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Surface Water Quantity

The Central Lake Ontario Conservation Authority (CLOCA) operates a hydrologic monitoring network to collect the necessary information needed for flood forecasting and warnings. Since 1959, a variety of stream level, stream flow, precipitation and snow data has been collected within CLOCA watershed by several Federal, Provincial, local agencies, and the Authority.

The focus of the system has been to monitor and record high flow events as they pass through the developed portions of CLOCA’s watershed. This information assists with flood forecasting and warning operations.

Surface Water Quantity
Bowmanville Photo: CLOCA

More recently, the value of hydrologic data for multiple purposes has been realized. This information can be used to generate an understanding of low flow and drought conditions, groundwater budgets, and aquatic studies.

Stream GaugesRain Gauges Snow CourseBaseflow


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