Water balance and seepage estimates for the sewage lagoon at Mayo, central Yukon Territory
Dates
Year
2004
Citation
Burke, Sheri M. E., 2004, Water balance and seepage estimates for the sewage lagoon at Mayo, central Yukon Territory: Carleton University (Canada).
Summary
A water balance study was carried out during summer 2003 to determine the rate of seepage from the sewage lagoon at Mayo, central Yukon Territory. The lagoon is largely dry, with over 85% of the total area covered by vegetation or bare soil. Measurements of precipitation, inflow, and pond water level, and estimates of evaporation were made to determine the rate of seepage from the lagoon. Precipitation was measured in a network of rain gauges, inflow at the Mayo lift station, and pond water level with staff gauges. Evaporation was estimated by a modified form of the Priestley-Taylor method, and from an evaporation pan placed in an infiltration pond. Daily estimates of seepage from two infiltration ponds at the lagoon were 29 mm day [...]
Summary
A water balance study was carried out during summer 2003 to determine the rate of seepage from the sewage lagoon at Mayo, central Yukon Territory. The lagoon is largely dry, with over 85% of the total area covered by vegetation or bare soil. Measurements of precipitation, inflow, and pond water level, and estimates of evaporation were made to determine the rate of seepage from the lagoon. Precipitation was measured in a network of rain gauges, inflow at the Mayo lift station, and pond water level with staff gauges. Evaporation was estimated by a modified form of the Priestley-Taylor method, and from an evaporation pan placed in an infiltration pond. Daily estimates of seepage from two infiltration ponds at the lagoon were 29 mm day -1 ± 4 mm day-1 and 22 mm day-1 ± 4 mm day-1 , which are consistent with the design infiltration rate of 20 mm day-1 . Input of wastewater to the lagoon is low in comparison to its storage capacity, and as a result the retention time at the lagoon is low. The water balance indicates a retention time of less than one month.
