Calibration of flow regulator stations
Calibrating flow regulator stations ensures that the regulator performs as expected.
Regulations affecting municipalities
For drinking water:
The Stratégie québécoise d’économie d’eau potable (SQEEP) encourages the verification of the accuracy of flowmeters to find and reduce leaks.
The Règlement sur la déclaration des prélèvements d’eau requires users of more than 75 m³/day to demonstrate annually that their flow meters and every 3 years for other meters, are accurate to within 10% or better.
The Règlement sur les ouvrages municipaux d’assainissement des eaux usées (ROMAEU) requires an annual verification of the accuracy of flow measurement systems and allows a maximum deviation of ± 15%.
Regulations affecting manufacturers
For water supply:
The Règlement sur la déclaration des prélèvements d’eau applies to any industrial establishment that consumes more than 75 m³/day, that is not connected to a municipal aqueduct network and that withdraws from a source of ground or surface water.
Any industrial establishment that has an attestation d’assainissement from the MELCC or a certificat d’autorisation under article 22 of the Loi sur la qualité de l’environnement (LQE) may have to carry out an annual validation of its flow measurement system.
The pulp and paper industry and mining industries are subjected to provincial and federal regulations that require annual validation of their effluent flow measurement systems.