TOTAL DISSOLVED GAS REPORT FOR PASCO, WA starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 49.0 747.8 786.0 105.1 16.7 + + 0422 1700 49.1 748.1 786.0 105.1 16.6 + + 0422 1800 49.1 748.5 786.0 105.0 16.6 + + 0422 1900 49.1 749.0 786.0 104.9 16.6 + + 0422 2000 49.1 749.3 786.0 104.9 16.6 + + 0422 2100 49.0 750.0 786.0 104.8 16.6 + + 0422 2200 49.0 750.9 787.0 104.8 16.6 + + 0422 2300 48.9 751.4 786.0 104.6 16.6 + + 0423 0000 48.9 752.0 786.0 104.5 16.6 + + 0423 0100 48.8 752.6 785.0 104.3 16.6 + + 0423 0200 48.8 752.8 785.0 104.3 16.5 + + 0423 0300 48.8 753.1 785.0 104.2 16.5 + + 0423 0400 48.8 753.3 785.0 104.2 16.6 + + 0423 0500 48.7 753.5 784.0 104.0 16.5 + + 0423 0600 48.7 753.5 783.0 103.9 16.5 + + 0423 0700 48.7 754.4 782.0 103.7 16.7 + + 0423 0800 48.7 754.5 781.0 103.5 16.6 + + 0423 0900 48.7 754.9 780.0 103.3 16.6 + + 0423 1000 48.8 754.9 781.0 103.5 16.6 + + 0423 1100 49.0 754.8 782.0 103.6 16.5 + + 0423 1200 49.2 754.5 784.0 103.9 16.5 + + 0423 1300 49.4 753.7 786.0 104.3 16.5 + + 0423 1400 49.5 753.1 788.0 104.6 16.5 + + 0423 1500 49.9 752.3 792.0 105.3 16.5 + + 0423 1600 50.0 751.7 795.0 105.8 16.5 + + TOTAL DISSOLVED GAS REPORT FOR McNARY WASHINGTON SIDE starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 50.7 749.5 811.0 108.2 49.1 219.2 161.0 0422 1700 50.7 749.2 809.0 108.0 49.0 219.6 160.7 0422 1800 50.7 749.4 808.0 107.8 49.2 218.1 160.4 0422 1900 50.7 750.0 807.0 107.6 49.0 219.0 160.2 0422 2000 50.7 750.5 806.0 107.4 49.2 218.5 160.4 0422 2100 50.8 751.1 805.0 107.2 49.1 218.3 160.6 0422 2200 50.8 751.8 804.0 106.9 49.2 218.5 160.5 0422 2300 50.8 752.6 803.0 106.7 48.4 218.6 160.4 0423 0000 50.9 753.0 802.0 106.5 48.6 217.8 160.1 0423 0100 50.9 753.4 801.0 106.3 49.4 217.2 159.9 0423 0200 50.9 753.7 801.0 106.3 49.3 217.7 160.0 0423 0300 50.9 753.9 800.0 106.1 49.1 217.3 159.7 0423 0400 50.9 754.2 799.0 105.9 49.4 217.4 159.4 0423 0500 50.9 754.3 798.0 105.8 49.3 217.5 159.5 0423 0600 50.8 754.7 797.0 105.6 49.2 217.7 159.4 0423 0700 50.8 754.9 796.0 105.4 49.3 234.3 175.3 0423 0800 50.9 755.5 795.0 105.2 48.7 234.8 176.3 0423 0900 50.8 755.5 795.0 105.2 48.9 235.6 176.5 0423 1000 50.6 755.4 792.0 104.8 48.6 234.8 176.3 0423 1100 50.6 755.2 791.0 104.7 49.0 235.9 176.5 0423 1200 50.5 754.7 790.0 104.7 49.1 235.8 176.5 0423 1300 50.5 754.1 790.0 104.8 49.1 235.5 176.4 0423 1400 50.6 753.4 790.0 104.9 48.8 234.4 176.4 0423 1500 50.6 752.7 790.0 105.0 48.6 234.7 176.7 0423 1600 50.7 752.0 790.0 105.1 48.5 233.9 176.8 TOTAL DISSOLVED GAS REPORT FOR McNARY TAILWATER starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 50.9 751.8 915.0 121.7 19.4 219.2 161.0 0422 1700 50.8 751.7 916.0 121.9 19.5 219.6 160.7 0422 1800 50.8 751.8 915.0 121.7 19.6 218.1 160.4 0422 1900 50.8 752.3 915.0 121.6 19.9 219.0 160.2 0422 2000 50.7 752.7 915.0 121.6 19.6 218.5 160.4 0422 2100 50.7 753.5 915.0 121.4 19.4 218.3 160.6 0422 2200 50.7 754.1 916.0 121.5 19.4 218.5 160.5 0422 2300 50.8 754.9 916.0 121.3 19.3 218.6 160.4 0423 0000 50.8 755.2 916.0 121.3 19.4 217.8 160.1 0423 0100 50.8 755.6 916.0 121.2 19.4 217.2 159.9 0423 0200 50.8 755.9 916.0 121.2 19.4 217.7 160.0 0423 0300 50.8 756.1 917.0 121.3 19.3 217.3 159.7 0423 0400 50.8 756.3 917.0 121.2 19.3 217.4 159.4 0423 0500 50.8 756.5 917.0 121.2 19.4 217.5 159.5 0423 0600 50.8 756.9 916.0 121.0 19.5 217.7 159.4 0423 0700 50.8 757.1 917.0 121.1 19.7 234.3 175.3 0423 0800 50.8 757.8 922.0 121.7 19.9 234.8 176.3 0423 0900 50.8 757.8 924.0 121.9 19.7 235.6 176.5 0423 1000 50.7 757.7 926.0 122.2 19.7 234.8 176.3 0423 1100 50.8 757.4 927.0 122.4 19.6 235.9 176.5 0423 1200 50.8 756.9 927.0 122.5 19.6 235.8 176.5 0423 1300 50.8 756.3 928.0 122.7 19.7 235.5 176.4 0423 1400 50.8 755.6 927.0 122.7 19.6 234.4 176.4 0423 1500 50.9 754.8 927.0 122.8 19.5 234.7 176.7 0423 1600 50.9 754.3 926.0 122.8 19.4 233.9 176.8 TOTAL DISSOLVED GAS REPORT FOR JOHN DAY (Wingwall) starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 50.7 754.0 871.0 115.5 31.9 210.7 149.9 0422 1700 50.8 754.0 871.0 115.5 31.9 213.0 150.3 0422 1800 50.8 754.0 871.0 115.5 31.8 219.7 159.9 0422 1900 50.8 754.0 871.0 115.5 31.9 221.8 159.9 0422 2000 50.8 755.0 869.0 115.1 31.7 222.5 160.3 0422 2100 50.8 755.0 867.0 114.8 31.6 221.2 160.7 0422 2200 50.7 756.0 867.0 114.7 32.1 222.4 160.7 0422 2300 50.7 756.0 866.0 114.6 32.0 222.8 160.7 0423 0000 50.7 757.0 865.0 114.3 32.0 221.2 160.7 0423 0100 50.7 757.0 864.0 114.1 32.1 220.0 160.7 0423 0200 50.7 757.0 862.0 113.9 32.1 221.1 160.7 0423 0300 50.7 757.0 861.0 113.7 32.0 220.0 160.7 0423 0400 50.7 757.0 859.0 113.5 31.9 221.4 160.8 0423 0500 50.7 758.0 857.0 113.1 32.1 222.9 160.7 0423 0600 50.7 758.0 856.0 112.9 32.0 219.9 160.7 0423 0700 50.7 758.0 855.0 112.8 31.9 238.5 179.2 0423 0800 50.6 758.0 855.0 112.8 31.7 242.3 182.1 0423 0900 50.7 759.0 854.0 112.5 32.1 242.7 182.1 0423 1000 50.7 759.0 853.0 112.4 31.4 245.3 182.1 0423 1100 50.8 759.0 852.0 112.3 31.0 246.7 182.1 0423 1200 50.8 758.0 852.0 112.4 32.0 250.2 186.8 0423 1300 50.8 757.0 852.0 112.5 32.1 250.5 186.9 0423 1400 50.8 757.0 851.0 112.4 31.9 251.7 186.9 0423 1500 50.9 756.0 851.0 112.6 32.1 247.6 186.9 0423 1600 50.9 756.0 850.0 112.4 29.6 248.2 186.9 TOTAL DISSOLVED GAS REPORT FOR JOHN DAY TAILWATER starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.1 757.0 894.0 118.1 15.7 210.7 149.9 0422 1700 51.1 757.0 896.0 118.4 15.9 213.0 150.3 0422 1800 51.1 757.0 896.0 118.4 15.9 219.7 159.9 0422 1900 51.1 757.0 896.0 118.4 16.1 221.8 159.9 0422 2000 51.1 757.0 901.0 119.0 15.6 222.5 160.3 0422 2100 51.1 758.0 898.0 118.5 15.6 221.2 160.7 0422 2200 51.0 759.0 897.0 118.2 15.5 222.4 160.7 0422 2300 51.0 759.0 895.0 117.9 15.5 222.8 160.7 0423 0000 51.0 759.0 896.0 118.1 15.3 221.2 160.7 0423 0100 51.0 759.0 896.0 118.1 15.5 220.0 160.7 0423 0200 51.0 760.0 896.0 117.9 15.6 221.1 160.7 0423 0300 51.0 760.0 897.0 118.0 15.7 220.0 160.7 0423 0400 51.0 760.0 898.0 118.2 15.9 221.4 160.8 0423 0500 51.0 760.0 904.0 118.9 16.0 222.9 160.7 0423 0600 51.0 761.0 901.0 118.4 16.1 219.9 160.7 0423 0700 51.0 761.0 911.0 119.7 16.3 238.5 179.2 0423 0800 51.0 761.0 914.0 120.1 16.3 242.3 182.1 0423 0900 51.0 761.0 914.0 120.1 16.4 242.7 182.1 0423 1000 51.1 761.0 915.0 120.2 16.4 245.3 182.1 0423 1100 51.1 761.0 919.0 120.8 16.5 246.7 182.1 0423 1200 51.1 760.0 916.0 120.5 16.5 250.2 186.8 0423 1300 51.2 760.0 915.0 120.4 16.5 250.5 186.9 0423 1400 51.2 759.0 916.0 120.7 16.7 251.7 186.9 0423 1500 51.2 759.0 917.0 120.8 16.5 247.6 186.9 0423 1600 51.3 758.0 915.0 120.7 16.6 248.2 186.9 TOTAL DISSOLVED GAS REPORT FOR THE DALLES starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.2 757.0 856.0 113.1 15.9 197.7 84.0 0422 1700 51.2 757.0 856.0 113.1 16.6 199.3 84.0 0422 1800 51.2 758.0 856.0 112.9 15.8 199.1 84.0 0422 1900 51.2 758.0 857.0 113.1 15.6 230.0 84.0 0422 2000 51.2 758.0 856.0 112.9 15.1 229.5 84.0 0422 2100 51.2 758.0 855.0 112.8 14.8 229.8 84.0 0422 2200 51.1 759.0 855.0 112.6 15.7 231.2 84.0 0422 2300 51.1 760.0 858.0 112.9 15.8 230.8 84.0 0423 0000 51.1 760.0 857.0 112.8 16.0 200.4 84.0 0423 0100 51.1 761.0 854.0 112.2 15.8 196.2 81.6 0423 0200 51.1 761.0 859.0 112.9 16.1 193.7 82.0 0423 0300 51.1 761.0 861.0 113.1 16.8 192.1 82.0 0423 0400 51.0 761.0 859.0 112.9 16.0 192.8 82.0 0423 0500 51.0 761.0 861.0 113.1 16.2 193.7 82.0 0423 0600 51.0 761.0 861.0 113.1 16.0 220.7 82.0 0423 0700 51.0 762.0 862.0 113.1 15.6 222.2 82.0 0423 0800 50.9 762.0 860.0 112.9 14.1 233.5 82.0 0423 0900 51.0 762.0 861.0 113.0 14.1 232.9 82.0 0423 1000 51.0 762.0 860.0 112.9 16.1 225.8 82.0 0423 1100 51.0 762.0 863.0 113.3 16.9 227.5 82.0 0423 1200 51.1 761.0 866.0 113.8 16.0 226.7 82.0 0423 1300 51.2 761.0 867.0 113.9 15.9 227.4 82.0 0423 1400 51.3 760.0 871.0 114.6 16.7 235.9 82.0 0423 1500 51.3 760.0 871.0 114.6 16.6 235.5 82.0 0423 1600 51.3 759.0 873.0 115.0 16.4 232.5 82.0 TOTAL DISSOLVED GAS REPORT FOR 1 MILE DOWNSTREAM OF THE DALLES starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.2 758.0 895.0 118.1 9.0 197.7 84.0 0422 1700 51.2 758.0 894.0 117.9 9.1 199.3 84.0 0422 1800 51.2 759.0 892.0 117.5 9.1 199.1 84.0 0422 1900 51.2 759.0 891.0 117.4 9.5 230.0 84.0 0422 2000 51.2 759.0 888.0 117.0 9.5 229.5 84.0 0422 2100 51.2 760.0 889.0 117.0 9.5 229.8 84.0 0422 2200 51.1 760.0 888.0 116.8 9.7 231.2 84.0 0422 2300 51.1 761.0 887.0 116.6 9.7 230.8 84.0 0423 0000 51.1 761.0 886.0 116.4 9.2 200.4 84.0 0423 0100 51.1 762.0 888.0 116.5 9.1 196.2 81.6 0423 0200 51.1 762.0 890.0 116.8 9.1 193.7 82.0 0423 0300 51.1 762.0 892.0 117.1 9.1 192.1 82.0 0423 0400 51.1 762.0 892.0 117.1 9.0 192.8 82.0 0423 0500 51.1 762.0 895.0 117.5 9.0 193.7 82.0 0423 0600 51.0 762.0 894.0 117.3 9.4 220.7 82.0 0423 0700 51.0 763.0 894.0 117.2 9.4 222.2 82.0 0423 0800 51.0 763.0 892.0 116.9 9.6 233.5 82.0 0423 0900 51.0 763.0 893.0 117.0 9.6 232.9 82.0 0423 1000 51.1 763.0 893.0 117.0 9.6 225.8 82.0 0423 1100 51.1 763.0 893.0 117.0 9.6 227.5 82.0 0423 1200 51.2 762.0 894.0 117.3 9.9 226.7 82.0 0423 1300 51.2 762.0 895.0 117.5 9.7 227.4 82.0 0423 1400 51.2 761.0 896.0 117.7 9.9 235.9 82.0 0423 1500 51.3 761.0 895.0 117.6 10.0 235.5 82.0 0423 1600 51.3 760.0 895.0 117.8 9.8 232.5 82.0 TOTAL DISSOLVED GAS REPORT FOR BONNEVILLE starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.4 760.0 845.0 111.2 8.9 195.6 150.6 0422 1700 51.4 760.0 844.0 111.1 9.1 205.1 150.5 0422 1800 51.4 760.0 843.0 110.9 10.1 206.7 150.4 0422 1900 51.4 760.0 842.0 110.8 11.2 220.7 150.1 0422 2000 51.4 760.0 840.0 110.5 8.2 234.8 149.7 0422 2100 51.4 761.0 839.0 110.2 9.3 235.8 149.9 0422 2200 51.3 762.0 838.0 110.0 11.1 236.1 149.9 0422 2300 51.2 762.0 836.0 109.7 9.9 236.4 149.9 0423 0000 51.2 762.0 834.0 109.4 9.9 227.6 150.3 0423 0100 51.2 763.0 833.0 109.2 9.5 222.5 150.5 0423 0200 51.1 763.0 833.0 109.2 8.7 209.6 150.6 0423 0300 51.1 763.0 833.0 109.2 10.6 207.2 150.5 0423 0400 51.1 763.0 833.0 109.2 9.1 207.2 150.5 0423 0500 51.0 763.0 833.0 109.2 10.7 207.3 150.4 0423 0600 51.0 763.0 833.0 109.2 9.8 220.7 150.0 0423 0700 51.0 763.0 833.0 109.2 8.0 222.3 149.9 0423 0800 51.0 763.0 833.0 109.2 9.3 234.8 149.9 0423 0900 51.0 763.0 832.0 109.0 10.3 235.6 149.9 0423 1000 51.0 764.0 832.0 108.9 8.9 223.6 150.3 0423 1100 51.0 764.0 833.0 109.0 11.0 223.2 150.4 0423 1200 51.0 763.0 834.0 109.3 10.0 223.1 150.4 0423 1300 51.1 763.0 836.0 109.6 10.5 223.4 150.5 0423 1400 51.2 762.0 838.0 110.0 11.9 233.7 150.3 0423 1500 51.2 762.0 838.0 110.0 9.3 237.4 150.2 0423 1600 51.3 762.0 840.0 110.2 9.4 236.8 150.3 TOTAL DISSOLVED GAS REPORT FOR WARRENDALE starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.5 764.0 918.0 120.2 8.1 195.6 150.6 0422 1700 51.6 764.0 921.0 120.5 8.0 205.1 150.5 0422 1800 51.5 764.0 922.0 120.7 8.0 206.7 150.4 0422 1900 51.5 764.0 922.0 120.7 8.1 220.7 150.1 0422 2000 51.5 765.0 919.0 120.1 8.1 234.8 149.7 0422 2100 51.5 765.0 918.0 120.0 8.1 235.8 149.9 0422 2200 51.5 766.0 916.0 119.6 8.1 236.1 149.9 0422 2300 51.5 767.0 914.0 119.2 8.2 236.4 149.9 0423 0000 51.4 767.0 914.0 119.2 8.2 227.6 150.3 0423 0100 51.4 767.0 913.0 119.0 8.2 222.5 150.5 0423 0200 51.4 767.0 914.0 119.2 8.1 209.6 150.6 0423 0300 51.3 767.0 914.0 119.2 8.2 207.2 150.5 0423 0400 51.3 767.0 916.0 119.4 8.2 207.2 150.5 0423 0500 51.2 767.0 917.0 119.6 8.2 207.3 150.4 0423 0600 51.2 767.0 919.0 119.8 8.2 220.7 150.0 0423 0700 51.2 768.0 919.0 119.7 8.2 222.3 149.9 0423 0800 51.2 768.0 919.0 119.7 8.2 234.8 149.9 0423 0900 51.2 768.0 920.0 119.8 8.2 235.6 149.9 0423 1000 51.2 768.0 920.0 119.8 8.2 223.6 150.3 0423 1100 51.1 768.0 919.0 119.7 8.2 223.2 150.4 0423 1200 51.2 768.0 919.0 119.7 8.2 223.1 150.4 0423 1300 51.2 767.0 920.0 119.9 8.1 223.4 150.5 0423 1400 51.2 767.0 922.0 120.2 8.1 233.7 150.3 0423 1500 51.3 766.0 922.0 120.4 8.1 237.4 150.2 0423 1600 51.3 766.0 922.0 120.4 8.0 236.8 150.3 TOTAL DISSOLVED GAS REPORT FOR CAMAS/WASHOUGAL starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 + + + + + 195.6 150.6 0422 1700 + + + + + 205.1 150.5 0422 1800 + + + + + 206.7 150.4 0422 1900 + + + + + 220.7 150.1 0422 2000 + + + + + 234.8 149.7 0422 2100 + + + + + 235.8 149.9 0422 2200 + + + + + 236.1 149.9 0422 2300 + + + + + 236.4 149.9 0423 0000 + + + + + 227.6 150.3 0423 0100 + + + + + 222.5 150.5 0423 0200 + + + + + 209.6 150.6 0423 0300 + + + + + 207.2 150.5 0423 0400 + + + + + 207.2 150.5 0423 0500 + + + + + 207.3 150.4 0423 0600 + + + + + 220.7 150.0 0423 0700 + + + + + 222.3 149.9 0423 0800 + + + + + 234.8 149.9 0423 0900 + + + + + 235.6 149.9 0423 1000 + + + + + 223.6 150.3 0423 1100 + + + + + 223.2 150.4 0423 1200 + + + + + 223.1 150.4 0423 1300 + + + + + 223.4 150.5 0423 1400 + + + + + 233.7 150.3 0423 1500 + + + + + 237.4 150.2 0423 1600 + + + + + 236.8 150.3 TOTAL DISSOLVED GAS REPORT FOR CASCADE ISLAND, WA starting at 1600 22 Apr 2026 WA TM BARO TD GAS TDG DEPTH OF TOT FLOW SPILL DATE TIME DEG F PRES PRES % GAGE(FT) KCFS KCFS 0422 1600 51.3 762.0 913.0 119.8 28.4 195.6 150.6 0422 1700 51.3 762.0 912.0 119.7 28.8 205.1 150.5 0422 1800 51.3 762.0 913.0 119.8 28.9 206.7 150.4 0422 1900 51.3 763.0 915.0 119.9 29.5 220.7 150.1 0422 2000 51.3 763.0 918.0 120.3 29.9 234.8 149.7 0422 2100 51.3 763.0 919.0 120.4 30.1 235.8 149.9 0422 2200 51.2 764.0 920.0 120.4 30.0 236.1 149.9 0422 2300 51.2 765.0 921.0 120.4 30.1 236.4 149.9 0423 0000 51.1 765.0 924.0 120.8 29.7 227.6 150.3 0423 0100 51.1 765.0 924.0 120.8 29.6 222.5 150.5 0423 0200 51.1 765.0 918.0 120.0 29.1 209.6 150.6 0423 0300 51.0 765.0 916.0 119.7 28.8 207.2 150.5 0423 0400 51.0 765.0 915.0 119.6 28.9 207.2 150.5 0423 0500 51.0 765.0 915.0 119.6 29.1 207.3 150.4 0423 0600 50.9 765.0 922.0 120.5 29.6 220.7 150.0 0423 0700 50.9 766.0 924.0 120.6 29.7 222.3 149.9 0423 0800 50.9 766.0 921.0 120.2 30.0 234.8 149.9 0423 0900 50.9 766.0 923.0 120.5 29.8 235.6 149.9 0423 1000 50.9 766.0 920.0 120.1 29.7 223.6 150.3 0423 1100 50.9 766.0 923.0 120.5 29.6 223.2 150.4 0423 1200 51.0 766.0 921.0 120.2 29.5 223.1 150.4 0423 1300 51.0 765.0 923.0 120.7 29.9 223.4 150.5 0423 1400 51.1 765.0 925.0 120.9 30.3 233.7 150.3 0423 1500 51.1 764.0 926.0 121.2 30.4 237.4 150.2 0423 1600 51.2 764.0 921.0 120.5 30.3 236.8 150.3