- 39 - 



i r 



Figure 28. — Boron concentrations in Cookson Reservoir 

 at Morrison Dam for the period 1981-90. 



and 29 illustrate the increasing concentrations for TDS, boron, and 

 sulphates, respectively. 



To alleviate the elevated water table south of the reservoir and the 

 attendant soil salinity concerns, Sask Power undertook a soil salinity 

 project south of Morrison Dam. With the intent to lower the water table 

 to pre-reservoir levels, wells were installed in a reach approximately 

 2.5 km below the dam. Phase 1 involved the installation of four wells on 

 the east side of the River in 1989 and in 1990 four wells were placed on 

 the west side as Phase 2. Discharge is returned to the reservoir through 

 a common line. Three wells on the east side were operated during 1990 

 and pump testing for the west side wells was initiated in late 1990. 



