Larfarge Canada Inc. Case Study

Canada's largest aggregate, cement and asphalt producer has operations throughout Ontario. Water operations involve wells, quarry dewatering and processing (aggregate washing and dust control). The new Permits To Take Water "PTTW" required that maximum flows, daily consumption and in the relevant locations, static well levels be recorded on a real time basis. Coulter and two other much larger companies were asked to submit a proposal addressing the MOEE requirements. The project encompassed 42 different locations, all of which involved extreme environments (noise, shock, dust, dirt, rain etc.).

Coulter was the only company to submit a proposal and before so doing, every site was surveyed as to plumbing, mechanical and electrical services required. Our proposal included special fabricated fittings to accommodate the meter installation, provision of 600V to 120V transformers, mounting racks for weatherproof heated enclosures for the meter and data logging devices, welding and crane services.

Working with Endress + Hauser, their Promag 50W magnetic flow meters, Ecograph-T paperless recorders and water pilots were packaged and installed. Weatherproof heated enclosures were supplied by Intertech out of Milton. The meters and recorders were preset based on flow rates and other information provided by Lafarge's quarry operators. This information was not always accurate. Subsequent to the installation of the meters and recorders, Coulter returned to all those sites where alterations to the meter and recorder settings required some fine tuning and programmed same to reflect actual operations.