Figure 7.7 Lagoon Water Quality Data for Potassium, Strontium and Polisliing 



Pond Volume, 1983 to 1991 59 



Figure 7.8 Lagoon Water Quality Data for Uranium and Polishing Pond Volume, 



1983 to 1991 60 



Figure 7.9 Lagoon Water Quality Data for Calcium and Polishing Pond Volume, 



1983 to 1991 60 



Figure 7.10 Lagoon Water Quality Data for Calcium and Polishing Pond pH, 



1983 to 1991 61 



Figure 7.1 1 Lagoon Water Quality Data for Magnesium and Polishing Pond pH, 



1983 to 1991 61 



Figure 7.12 Lagoon Water Quality Data for Boron and Polishing Pond Volume, 



1983 to 1991 63 



Figure 7.13 Lagoon Water Quality Data for Boron and Polishing Pond pH, 



1983 to 1991 63 



Figure 7.14 Boron in Piezometer C712B 70 



Figure 7.15 Chloride in Piezometer C712B 70 



Figure 7.16 Dykes on Ash Lagoons, December 31, 1991 72 



Figure 9.1 Maximum Daily SO2 Air Quality Data, Coronach Water Treatment 



Plant, 1981 to 1991, (Saskatchewan 24-hour standard) 76 



Figure 9.2 Maximum Hourly SOj Air Quality Data, Coronach Water Treatment 



Plant, 1981 to 1991, (Saskatchewan 1-hour standard) 76 



VI 



