The Central Lake Ontario Conservation Authority monitors stream flow, water quality, meteorological conditions, and operational conditions at CLOCA dams. The information is collected and transmitted from each station to CLOCA's Operations Centre in Oshawa, Ontario once an hour.

Users of CLOCA's near real-time data are cautioned to consider the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business. These data are not citable until reviewed and approved by CLOCA.

All CLOCA Monitoring Data is made available under the CLOCA Standard Data Licence v1. CLOCA may make changes to the terms of this licence from time to time and issue a new version of the licence. Your use of the Information will be governed by the terms of the licence in force as of the date you accessed the information. By accessing or downloading any monitoring data, you agree to be bound by the associated licence.

Flood Forecasting and Warning

Watershed Care Fallback
  • Precipitation
  • Stream Gauges
  • Atmosphere
  • Water Discharge

Qualification of Flow Data Collected by CLOCA:Sediment accumulation may lead to plugged or partially plugged intakes at monitoring. Best efforts are made to identify plugged intakes and remove this data from the record and tag the period as missing. The data is provided to you in an as is form and may be subject to change. The best available information is provided to you at this time. Float and tapes can stick or malfunction. Best efforts are made to identify these instances and remove this data from the record and tag the period as missing.

Data Disclaimer: Users should use the information on this website with caution and do so at their own risk. The Central Lake Ontario Conservation Authority (CLOCA) accepts no liability for the accuracy, availability, suitability, reliability, usability, completeness or timeliness of the data or graphical depictions rendered from the data. The near real-time information presented on this website is received via satellite or land-line transmissions from hydrometric gauging stations operated by CLOCA and its Partners. The data are preliminary and have been transmitted automatically with limited verification and review for quality assurance. Subsequent quality assurance and verification procedures may result in differences between what is currently displayed and what will become the official record. It is the responsibility of all persons who use this site to independently confirm the accuracy of the data, information, or results obtained through its use. The CLOCA does not warrant the quality, accuracy, or completeness of any information, data or product from these web pages. It is provided 'AS IS' without warranty or condition of any nature. The CLOCA disclaims all other warranties, expressed or implied, including but not limited to implied warranties of merchantability and fitness for a particular purpose, with respect to the information, data, product or accompanying materials retrieved from this web site. In no event will the CLOCA or its employees, servants or agents have any obligation to the user for any reason including claims arising from contract or tort, or for loss of revenue or profit, or for indirect, special, incidental or consequential damages arising from the use of this information. Information presented on this web site is considered public information and may be distributed or copied. No agency or individual can bundle the raw information and resell the raw information.