XCG Consultants Ltd. developed the "Guidance Manual for the Optimization of Ontario Water Treatment Plants on behalf of the Ministry of the Environment (MOE), which was aimed at improving the performance of conventional and direct filtration surface water treatment plants.
The Safe Drinking Water Act and the Ontario Water Resources Act require that an operational manual be readily accessible to operators. XCG Consultants Ltd. and another consulting firm were retained to develop, review, and update the Region’s facility operations manuals in compliance with the Region’s design standards.
XCG Consultants Ltd. has completed several comprehensive assessments of water and wastewater services as part of the National Assessment of First Nation Water and Wastewater Systems undertaken by the Government of Canada.
In January 2006, the Region initiated an update of the Water Supply Strategy to reassess the philosophy and staging that had been adopted in the 2000 Water Supply Master Plan (WSMP) and to update the strategy.
Given the changed regulatory framework and the implementation of new technology the MOE retained XCG Consultants Ltd. in conjunction with Hydromantis, Inc. to revise and update the existing Drinking Water Guidelines on behalf of the MOE.
This project encompassed Class EA, planning, design, construction and commissioning of a Process Waste Facility at the Central Kingston Water Plant to deal with wastes from daily filter backwash and routine clean-out of settling tank sludge.
XCG Consultants Ltd. conducted performance evaluations at two surface water treatment plants on behalf of the MOE following revisions to the Procedure for Disinfection of Drinking Water in Ontario (June 2006), in which the performance criterion for filter effluent turbidity was decreased from ≤0.5 NTU to ≤0.3 NTU in 95 % of measurements each month.
The City of London had experienced increased lead levels in samples collected from areas with lead services following a watermain rehabilitation project. XCG Consultants Ltd. (XCG) was retained by the City to undertake a corrosion control study with a particular focus on the reduction of lead concentrations in the distribution system and plumbing.
XCG Consultants Ltd. was retained by the City of Brandon to undertake a disinfection practices study. The purpose of the study was to evaluate the existing treatment and disinfection practices at the City of Brandon Water Treatment Plant (WTP) and their impact on the formation of disinfection by-products (DBPs) in the City’s drinking water system. Consideration was given to the current regulatory context, such as the maximum acceptable concentrations (MAC) for trihalomethanes (THM) and bromodichloromethane (BDCM) established in the Guidelines for Canadian Drinking Water Quality (Health Canada, 2007) and the newly published Manitoba Safe Drinking Water Regulations, as well as anticipated regulatory trends, including a more stringent regulatory limit for THMs and a new MAC for haloacetic acids (HAA).