Prepared by: Chris Merriman, LEA
Sources for a new and adequate water supply were investigated and a plan to retrieve water from the moraine behind the water plant was decided on. Clearing of a one-square kilometre area and drilling began in 2000. Three pads were built, one pad contained 26 shallow wells, and the other two contained 15 wells each. The three sets of wells were connected to two pumping stations that pumped the water to the water treatment plant. Water volume can be increased or decreased at the wells or pump stations. This system came on line in the spring of 2001.
WATER TREATMENT AND DISTRIBUTION
As the new source of water still contains iron, manganese, colour and turbidity (to a lesser extent than the previous source) it still has to be treated with chemicals and filtered. Untreated water is automatically dosed with PASS and polymer chemicals to remove colour and turbidity, and then the water is filtered and stored in a reservoir for partly treated water. The water is then treated with potassium permanganate for removal of iron and manganese and then filtered before being stored in the distribution reservoir. Chlorine is added to the treated water before entering the reservoir and before it enters the distribution system. Laboratory tests are done daily to monitor the water purity and chlorine levels.
To prevent freezing, the water is distibuted in a loop system which means it is pumped around the community and the unused water returns to the treatment plant. This keeps the water moving continually. The return water is tested daily for chlorine levels and bacteria.
The RBC system is basically a biological process where plastic media is used to support the necessary bacteria for sewage treatment. This media is exposed along a shaft which, by its rotation, alternately exposes the micro-organisms to air and wastewater, thus enabling aerobic treatment to take place.
There are four sections of plastic media and they operatie in series. Water goes in sequence from stage one until four and is then discharged to the secondary clarifier. The first stage receiving the most organic load has the largest area. The necessary micro-organisms for such a treatment are naturally present in the wastewater and their development on the RBC media does not require any particular action except to make sure rotation occurs.
Hazardous waste such
as batteries, paint, solvents and used oil are stored at the Nabashou
Garage for shipment south by an authorised company. The clinic sends medical
waste to the Chisasibi Hospital for disposal.
ENVIRONMENTAL PROGRAMS & PROJECTS
Landscaping by planting trees around the community will be occurring and most houses have lawns and flowers planted.