TOTAL DISSOLVED GAS REPORT FOR PASCO, WA starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 49.5 744.2 812.0 109.1 15.8 + + 0421 0400 49.5 744.3 811.0 109.0 15.8 + + 0421 0500 49.4 744.3 809.0 108.7 15.7 + + 0421 0600 49.3 744.1 808.0 108.6 15.7 + + 0421 0700 49.3 744.4 806.0 108.3 15.8 + + 0421 0800 49.2 744.5 805.0 108.1 15.7 + + 0421 0900 49.3 744.3 805.0 108.2 15.8 + + 0421 1000 49.3 744.2 805.0 108.2 15.8 + + 0421 1100 49.3 744.3 805.0 108.2 15.7 + + 0421 1200 49.4 743.6 805.0 108.3 15.7 + + 0421 1300 49.6 743.1 807.0 108.6 15.6 + + 0421 1400 49.9 742.4 809.0 109.0 15.6 + + 0421 1500 50.1 742.1 810.0 109.1 15.6 + + 0421 1600 50.3 742.1 810.0 109.1 15.6 + + 0421 1700 50.2 742.2 809.0 109.0 15.6 + + 0421 1800 50.1 742.5 806.0 108.6 15.6 + + 0421 1900 50.1 742.8 803.0 108.1 15.7 + + 0421 2000 50.0 742.8 800.0 107.7 15.7 + + 0421 2100 50.0 743.3 798.0 107.4 15.6 + + 0421 2200 49.9 743.9 796.0 107.0 15.7 + + 0421 2300 49.9 743.6 795.0 106.9 15.7 + + 0422 0000 49.9 743.6 795.0 106.9 15.6 + + 0422 0100 49.9 744.5 794.0 106.6 15.7 + + 0422 0200 49.8 744.4 793.0 106.5 15.8 + + 0422 0300 49.8 744.2 793.0 106.6 15.8 + + TOTAL DISSOLVED GAS REPORT FOR McNARY WASHINGTON SIDE starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.2 744.7 842.0 113.1 48.3 219.6 161.5 0421 0400 51.1 744.9 842.0 113.0 48.3 220.3 161.3 0421 0500 51.2 744.8 842.0 113.1 48.1 219.9 161.5 0421 0600 51.2 745.0 842.0 113.0 48.0 219.9 161.5 0421 0700 51.2 745.1 841.0 112.9 47.9 223.3 161.2 0421 0800 51.1 745.3 840.0 112.7 48.3 218.7 161.2 0421 0900 51.1 745.1 839.0 112.6 48.2 218.6 161.3 0421 1000 51.2 744.8 839.0 112.6 48.1 219.6 161.1 0421 1100 51.1 744.6 838.0 112.5 48.4 220.0 161.2 0421 1200 51.1 744.2 838.0 112.6 48.1 220.1 161.2 0421 1300 51.0 743.7 837.0 112.5 48.2 219.0 161.0 0421 1400 51.0 743.2 836.0 112.5 48.3 218.9 161.0 0421 1500 50.9 743.1 835.0 112.4 48.4 219.9 160.8 0421 1600 50.8 743.1 834.0 112.2 48.2 220.6 160.6 0421 1700 50.7 743.4 833.0 112.1 48.0 219.5 160.4 0421 1800 50.7 744.3 832.0 111.8 48.0 220.5 161.7 0421 1900 50.8 744.2 832.0 111.8 47.8 220.6 161.9 0421 2000 51.0 743.9 832.0 111.8 47.8 220.2 161.9 0421 2100 51.0 744.1 831.0 111.7 48.1 220.8 162.3 0421 2200 51.1 744.8 831.0 111.6 48.0 220.6 162.4 0421 2300 51.2 743.7 830.0 111.6 48.1 217.4 159.6 0422 0000 51.2 744.5 829.0 111.3 48.1 208.6 150.5 0422 0100 51.2 745.3 829.0 111.2 48.1 207.4 150.3 0422 0200 51.2 745.0 829.0 111.3 48.3 207.6 149.7 0422 0300 51.2 744.8 828.0 111.2 47.9 208.2 150.3 TOTAL DISSOLVED GAS REPORT FOR McNARY TAILWATER starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 50.9 747.0 911.0 122.0 18.6 219.6 161.5 0421 0400 50.9 747.2 911.0 121.9 18.5 220.3 161.3 0421 0500 50.9 747.1 912.0 122.1 18.5 219.9 161.5 0421 0600 50.9 747.3 911.0 121.9 18.6 219.9 161.5 0421 0700 51.0 747.3 911.0 121.9 18.6 223.3 161.2 0421 0800 51.0 747.5 912.0 122.0 18.6 218.7 161.2 0421 0900 51.0 747.4 912.0 122.0 18.6 218.6 161.3 0421 1000 51.1 746.9 913.0 122.2 18.5 219.6 161.1 0421 1100 51.2 746.8 914.0 122.4 18.7 220.0 161.2 0421 1200 51.3 746.4 914.0 122.5 18.6 220.1 161.2 0421 1300 51.3 746.0 914.0 122.5 18.7 219.0 161.0 0421 1400 51.4 745.5 914.0 122.6 18.7 218.9 161.0 0421 1500 51.3 745.3 914.0 122.6 18.9 219.9 160.8 0421 1600 51.1 745.6 913.0 122.5 18.9 220.6 160.6 0421 1700 51.1 745.7 912.0 122.3 18.7 219.5 160.4 0421 1800 51.0 746.8 912.0 122.1 18.9 220.5 161.7 0421 1900 50.9 746.5 912.0 122.2 18.7 220.6 161.9 0421 2000 51.0 746.0 913.0 122.4 18.8 220.2 161.9 0421 2100 51.0 746.3 913.0 122.3 18.7 220.8 162.3 0421 2200 51.0 747.1 913.0 122.2 18.9 220.6 162.4 0421 2300 51.0 745.9 912.0 122.3 18.6 217.4 159.6 0422 0000 51.1 746.6 911.0 122.0 18.6 208.6 150.5 0422 0100 51.1 747.4 906.0 121.2 18.6 207.4 150.3 0422 0200 51.1 747.3 903.0 120.8 18.5 207.6 149.7 0422 0300 51.1 747.0 902.0 120.7 18.6 208.2 150.3 TOTAL DISSOLVED GAS REPORT FOR JOHN DAY (Wingwall) starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 50.5 747.0 847.0 113.4 31.7 218.4 157.3 0421 0400 50.5 747.0 847.0 113.4 31.5 220.0 157.3 0421 0500 50.6 748.0 848.0 113.4 31.1 218.4 157.3 0421 0600 50.5 748.0 849.0 113.5 31.3 218.8 157.3 0421 0700 50.5 748.0 851.0 113.8 31.6 222.0 157.3 0421 0800 50.5 749.0 854.0 114.0 31.3 218.8 157.3 0421 0900 50.5 748.0 855.0 114.3 31.1 218.6 157.3 0421 1000 50.6 748.0 856.0 114.4 31.8 226.7 157.3 0421 1100 50.6 748.0 856.0 114.4 31.7 224.5 157.3 0421 1200 50.7 748.0 859.0 114.8 31.7 222.2 157.4 0421 1300 50.7 748.0 861.0 115.1 31.4 223.7 159.1 0421 1400 50.6 748.0 862.0 115.2 31.6 226.6 160.1 0421 1500 50.7 747.0 863.0 115.5 31.6 224.8 160.0 0421 1600 50.8 748.0 865.0 115.6 31.6 221.3 160.0 0421 1700 50.7 747.0 865.0 115.8 31.2 220.7 160.1 0421 1800 50.7 748.0 868.0 116.0 31.4 223.3 160.1 0421 1900 50.6 748.0 869.0 116.2 31.0 222.6 160.1 0421 2000 50.7 748.0 871.0 116.4 31.6 222.3 160.1 0421 2100 50.6 748.0 875.0 117.0 31.5 222.3 160.1 0421 2200 50.6 748.0 877.0 117.2 31.8 222.5 160.1 0421 2300 50.6 747.0 878.0 117.5 31.2 220.9 160.1 0422 0000 50.7 747.0 875.0 117.1 31.6 222.7 160.1 0422 0100 50.7 748.0 879.0 117.5 31.7 222.7 160.1 0422 0200 50.7 748.0 878.0 117.4 31.6 221.9 160.1 0422 0300 50.7 748.0 875.0 117.0 31.7 222.3 160.1 TOTAL DISSOLVED GAS REPORT FOR JOHN DAY TAILWATER starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 50.8 750.0 887.0 118.3 14.6 218.4 157.3 0421 0400 50.8 750.0 885.0 118.0 14.4 220.0 157.3 0421 0500 50.8 750.0 887.0 118.3 14.3 218.4 157.3 0421 0600 50.8 750.0 886.0 118.1 14.1 218.8 157.3 0421 0700 50.8 750.0 885.0 118.0 13.9 222.0 157.3 0421 0800 50.8 751.0 884.0 117.7 13.7 218.8 157.3 0421 0900 50.8 750.0 886.0 118.1 13.7 218.6 157.3 0421 1000 50.9 750.0 884.0 117.9 13.6 226.7 157.3 0421 1100 50.9 750.0 884.0 117.9 13.9 224.5 157.3 0421 1200 50.9 750.0 885.0 118.0 13.9 222.2 157.4 0421 1300 51.0 750.0 886.0 118.1 14.2 223.7 159.1 0421 1400 51.0 750.0 887.0 118.3 14.4 226.6 160.1 0421 1500 51.0 749.0 889.0 118.7 14.5 224.8 160.0 0421 1600 51.0 750.0 888.0 118.4 14.6 221.3 160.0 0421 1700 51.0 750.0 892.0 118.9 14.7 220.7 160.1 0421 1800 51.0 750.0 889.0 118.5 14.9 223.3 160.1 0421 1900 51.0 751.0 890.0 118.5 14.8 222.6 160.1 0421 2000 51.0 750.0 893.0 119.1 14.7 222.3 160.1 0421 2100 51.0 750.0 891.0 118.8 14.9 222.3 160.1 0421 2200 51.0 751.0 889.0 118.4 14.9 222.5 160.1 0421 2300 51.0 750.0 888.0 118.4 14.9 220.9 160.1 0422 0000 51.0 750.0 888.0 118.4 15.0 222.7 160.1 0422 0100 51.0 751.0 890.0 118.5 15.2 222.7 160.1 0422 0200 51.0 751.0 891.0 118.6 15.3 221.9 160.1 0422 0300 51.0 751.0 891.0 118.6 15.4 222.3 160.1 TOTAL DISSOLVED GAS REPORT FOR THE DALLES starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.2 750.0 896.0 119.5 13.6 230.7 81.0 0421 0400 51.2 751.0 894.0 119.0 13.2 233.9 81.0 0421 0500 51.2 751.0 893.0 118.9 14.5 233.8 81.0 0421 0600 51.2 751.0 891.0 118.6 14.4 232.3 81.0 0421 0700 51.1 751.0 889.0 118.4 13.2 234.4 81.0 0421 0800 51.2 751.0 887.0 118.1 13.3 234.1 81.0 0421 0900 51.2 751.0 887.0 118.1 13.8 231.5 81.0 0421 1000 51.1 751.0 886.0 118.0 13.3 197.8 81.0 0421 1100 51.2 751.0 886.0 118.0 13.4 196.2 81.0 0421 1200 51.0 751.0 886.0 118.0 13.3 195.7 81.0 0421 1300 51.2 751.0 885.0 117.8 13.9 192.7 81.0 0421 1400 51.2 751.0 883.0 117.6 15.1 193.5 81.0 0421 1500 51.1 751.0 882.0 117.4 14.0 194.2 81.0 0421 1600 51.1 751.0 882.0 117.4 15.2 191.6 81.0 0421 1700 51.1 751.0 883.0 117.6 14.9 191.3 81.0 0421 1800 51.2 751.0 880.0 117.2 15.4 209.5 81.0 0421 1900 51.1 751.0 881.0 117.3 15.1 212.4 81.0 0421 2000 51.1 751.0 880.0 117.2 15.0 208.8 81.0 0421 2100 51.2 751.0 877.0 116.8 14.7 210.3 81.0 0421 2200 51.2 751.0 876.0 116.6 14.8 209.1 81.0 0421 2300 51.2 751.0 875.0 116.5 14.5 207.5 81.0 0422 0000 51.2 751.0 873.0 116.2 15.3 194.2 81.0 0422 0100 51.3 751.0 870.0 115.8 16.2 195.7 83.9 0422 0200 51.3 752.0 868.0 115.4 15.5 195.0 84.0 0422 0300 51.3 752.0 868.0 115.4 16.2 195.9 84.0 TOTAL DISSOLVED GAS REPORT FOR 1 MILE DOWNSTREAM OF THE DALLES starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.1 751.0 908.0 120.9 8.9 230.7 81.0 0421 0400 51.1 752.0 907.0 120.6 9.0 233.9 81.0 0421 0500 51.2 752.0 908.0 120.7 9.1 233.8 81.0 0421 0600 51.2 752.0 907.0 120.6 9.3 232.3 81.0 0421 0700 51.2 752.0 906.0 120.5 9.5 234.4 81.0 0421 0800 51.1 752.0 905.0 120.3 9.6 234.1 81.0 0421 0900 51.2 752.0 904.0 120.2 9.6 231.5 81.0 0421 1000 51.2 752.0 904.0 120.2 9.1 197.8 81.0 0421 1100 51.2 752.0 904.0 120.2 9.2 196.2 81.0 0421 1200 51.2 752.0 905.0 120.3 9.2 195.7 81.0 0421 1300 51.3 752.0 905.0 120.3 9.0 192.7 81.0 0421 1400 51.2 752.0 906.0 120.5 8.9 193.5 81.0 0421 1500 51.2 752.0 905.0 120.3 8.8 194.2 81.0 0421 1600 51.2 752.0 905.0 120.3 8.6 191.6 81.0 0421 1700 51.1 752.0 905.0 120.3 8.5 191.3 81.0 0421 1800 51.1 752.0 905.0 120.3 8.7 209.5 81.0 0421 1900 51.2 752.0 903.0 120.1 8.7 212.4 81.0 0421 2000 51.1 752.0 902.0 119.9 8.6 208.8 81.0 0421 2100 51.1 752.0 901.0 119.8 8.5 210.3 81.0 0421 2200 51.1 752.0 901.0 119.8 8.5 209.1 81.0 0421 2300 51.2 752.0 900.0 119.7 8.6 207.5 81.0 0422 0000 51.2 752.0 899.0 119.5 8.4 194.2 81.0 0422 0100 51.2 752.0 899.0 119.5 8.4 195.7 83.9 0422 0200 51.2 753.0 898.0 119.3 8.5 195.0 84.0 0422 0300 51.2 753.0 899.0 119.4 8.5 195.9 84.0 TOTAL DISSOLVED GAS REPORT FOR BONNEVILLE starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.6 752.0 914.0 121.5 9.8 195.4 150.5 0421 0400 51.6 752.0 912.0 121.3 9.4 195.5 150.7 0421 0500 51.6 753.0 910.0 120.8 10.2 196.1 151.3 0421 0600 51.5 753.0 906.0 120.3 10.0 220.5 151.0 0421 0700 51.5 753.0 902.0 119.8 9.9 223.7 151.0 0421 0800 51.4 753.0 899.0 119.4 10.4 223.3 151.1 0421 0900 51.4 753.0 897.0 119.1 9.8 223.3 151.3 0421 1000 51.4 753.0 897.0 119.1 10.0 223.6 151.4 0421 1100 51.4 754.0 896.0 118.8 10.1 224.0 151.3 0421 1200 51.4 754.0 894.0 118.6 10.7 223.9 150.8 0421 1300 51.5 754.0 892.0 118.3 10.6 223.5 150.7 0421 1400 51.5 754.0 890.0 118.0 10.3 223.4 150.5 0421 1500 51.6 754.0 889.0 117.9 10.2 223.2 150.4 0421 1600 51.6 754.0 887.0 117.6 9.1 222.9 150.2 0421 1700 51.6 753.0 886.0 117.7 8.8 222.9 150.1 0421 1800 51.7 753.0 884.0 117.4 9.1 223.0 149.9 0421 1900 51.7 753.0 882.0 117.1 10.4 222.7 149.7 0421 2000 51.7 753.0 880.0 116.9 9.2 222.6 149.9 0421 2100 51.7 753.0 878.0 116.6 11.1 221.4 149.9 0421 2200 51.6 754.0 875.0 116.0 10.5 205.6 150.2 0421 2300 51.6 754.0 874.0 115.9 9.1 205.2 150.2 0422 0000 51.6 754.0 872.0 115.6 9.7 205.3 150.2 0422 0100 51.5 754.0 871.0 115.5 10.6 205.2 150.1 0422 0200 51.5 755.0 868.0 115.0 10.1 205.1 150.0 0422 0300 51.5 755.0 866.0 114.7 8.9 205.1 150.0 TOTAL DISSOLVED GAS REPORT FOR WARRENDALE starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.9 757.0 925.0 122.2 7.7 195.4 150.5 0421 0400 51.8 757.0 927.0 122.5 7.7 195.5 150.7 0421 0500 51.7 757.0 926.0 122.3 7.7 196.1 151.3 0421 0600 51.7 757.0 927.0 122.5 7.7 220.5 151.0 0421 0700 51.7 757.0 928.0 122.6 7.7 223.7 151.0 0421 0800 51.7 757.0 927.0 122.5 7.7 223.3 151.1 0421 0900 51.7 757.0 927.0 122.5 7.7 223.3 151.3 0421 1000 51.7 757.0 925.0 122.2 7.7 223.6 151.4 0421 1100 51.6 758.0 925.0 122.0 7.8 224.0 151.3 0421 1200 51.6 758.0 926.0 122.2 7.8 223.9 150.8 0421 1300 51.6 758.0 926.0 122.2 7.8 223.5 150.7 0421 1400 51.7 758.0 926.0 122.2 7.8 223.4 150.5 0421 1500 51.7 758.0 925.0 122.0 7.8 223.2 150.4 0421 1600 51.7 758.0 926.0 122.2 7.8 222.9 150.2 0421 1700 51.7 758.0 926.0 122.2 7.8 222.9 150.1 0421 1800 51.8 758.0 925.0 122.0 7.8 223.0 149.9 0421 1900 51.8 758.0 925.0 122.0 7.7 222.7 149.7 0421 2000 51.8 757.0 922.0 121.8 7.7 222.6 149.9 0421 2100 51.8 758.0 921.0 121.5 7.8 221.4 149.9 0421 2200 51.8 758.0 922.0 121.6 7.8 205.6 150.2 0421 2300 51.8 758.0 922.0 121.6 7.8 205.2 150.2 0422 0000 51.8 758.0 920.0 121.4 7.8 205.3 150.2 0422 0100 51.8 759.0 920.0 121.2 7.8 205.2 150.1 0422 0200 51.8 759.0 917.0 120.8 7.8 205.1 150.0 0422 0300 51.7 760.0 918.0 120.8 7.9 205.1 150.0 TOTAL DISSOLVED GAS REPORT FOR CAMAS/WASHOUGAL starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 + + + + + 195.4 150.5 0421 0400 + + + + + 195.5 150.7 0421 0500 + + + + + 196.1 151.3 0421 0600 + + + + + 220.5 151.0 0421 0700 + + + + + 223.7 151.0 0421 0800 + + + + + 223.3 151.1 0421 0900 + + + + + 223.3 151.3 0421 1000 + + + + + 223.6 151.4 0421 1100 + + + + + 224.0 151.3 0421 1200 + + + + + 223.9 150.8 0421 1300 + + + + + 223.5 150.7 0421 1400 + + + + + 223.4 150.5 0421 1500 + + + + + 223.2 150.4 0421 1600 + + + + + 222.9 150.2 0421 1700 + + + + + 222.9 150.1 0421 1800 + + + + + 223.0 149.9 0421 1900 + + + + + 222.7 149.7 0421 2000 + + + + + 222.6 149.9 0421 2100 + + + + + 221.4 149.9 0421 2200 + + + + + 205.6 150.2 0421 2300 + + + + + 205.2 150.2 0422 0000 + + + + + 205.3 150.2 0422 0100 + + + + + 205.2 150.1 0422 0200 + + + + + 205.1 150.0 0422 0300 + + + + + 205.1 150.0 TOTAL DISSOLVED GAS REPORT FOR CASCADE ISLAND, WA starting at 0300 21 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0421 0300 51.5 755.0 910.0 120.5 28.0 195.4 150.5 0421 0400 51.5 755.0 911.0 120.7 27.9 195.5 150.7 0421 0500 51.5 755.0 910.0 120.5 28.0 196.1 151.3 0421 0600 51.5 755.0 911.0 120.7 28.9 220.5 151.0 0421 0700 51.4 755.0 912.0 120.8 28.9 223.7 151.0 0421 0800 51.4 755.0 916.0 121.3 28.9 223.3 151.1 0421 0900 51.3 755.0 918.0 121.6 29.2 223.3 151.3 0421 1000 51.3 755.0 918.0 121.6 29.4 223.6 151.4 0421 1100 51.3 756.0 918.0 121.4 29.2 224.0 151.3 0421 1200 51.4 756.0 916.0 121.2 29.4 223.9 150.8 0421 1300 51.4 756.0 920.0 121.7 29.3 223.5 150.7 0421 1400 51.5 756.0 919.0 121.6 29.6 223.4 150.5 0421 1500 51.5 756.0 918.0 121.4 29.2 223.2 150.4 0421 1600 51.5 756.0 914.0 120.9 29.3 222.9 150.2 0421 1700 51.6 756.0 914.0 120.9 29.4 222.9 150.1 0421 1800 51.6 756.0 919.0 121.6 29.3 223.0 149.9 0421 1900 51.6 756.0 919.0 121.6 29.3 222.7 149.7 0421 2000 51.6 756.0 917.0 121.3 29.2 222.6 149.9 0421 2100 51.6 756.0 914.0 120.9 29.0 221.4 149.9 0421 2200 51.6 756.0 910.0 120.4 28.4 205.6 150.2 0421 2300 51.5 756.0 910.0 120.4 28.5 205.2 150.2 0422 0000 51.5 756.0 911.0 120.5 28.5 205.3 150.2 0422 0100 51.5 757.0 911.0 120.3 28.5 205.2 150.1 0422 0200 51.4 757.0 911.0 120.3 28.4 205.1 150.0 0422 0300 51.4 758.0 912.0 120.3 28.6 205.1 150.0