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Type of Data JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL Source of Supply Meter Readings in MG Collector #4 34.059 34.820 43.011 42.367 41.716 41.012 41.794 36.029 30.338 32.139 31.052 31.970 440.307 Collector #5 150.486 135.957 165.543 138.798 134.597 177.553 218.079 202.417 180.641 102.936 160.845 [PHONE REDACTED].080 Water Treatment Plant 0.000 0.000 0.000 123.134 217.152 218.952 267.481 259.236 203.472 157.800 0.000 0.000 1447.227 Total Water System Pumpage 184.545 170.777 208.554 304.299 393.465 437.517 527.354 497.682 414.451 292.875 191.897 [PHONE REDACTED].614 Peak Day in MG Collector #4 1.045 1.038 1.392 1.422 1.366 1.351 1.350 1.350 1.001 1.020 1.028 1.026 N/A Collector #5 7.908 8.543 8.465 5.423 6.220 6.134 9.335 8.872 7.678 5.481 9.713 7.552 N/A Water Treatment Plant 0.000 0.000 0.000 5.436 7.574 8.486 8.529 8.648 6.962 5.994 0.000 0.000 N/A Total Water System Pumpage 8.953 9.581 9.857 12.281 15.160 15.971 19.214 18.870 15.641 12.495 10.741 8.578 N/A Emergency Interties - Amount Imported 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Emergency Interties - Amount Exported 0.000 0.000 0.000 0.000 1.640 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.640 Wholesale - Amount Imported 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Wholesale - Amount Exported 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Service Meter Readings in MG Single-Family 87.645 101.138 68.426 115.025 100.427 218.453 140.167 272.823 139.122 218.204 87.017 [PHONE REDACTED].687 Multi-Family 67.081 20.837 57.198 19.449 63.181 26.237 82.645 28.644 86.529 26.377 68.259 21.498 567.935 Commercial/Industrial 45.464 22.567 31.928 75.683 44.152 160.196 72.723 173.448 89.570 145.197 60.226 54.496 975.650 Municipal/Government - Non-Revenue 1.881 1.919 0.461 7.713 12.049 35.506 38.959 40.551 41.774 27.890 101.880 21.406 331.989 Total Consumption 202.071 146.461 158.013 217.870 219.809 440.392 334.494 515.466 356.995 417.668 317.382 [PHONE REDACTED].261 Unmetered Water in MG Unmetered Water Report 0.383 0.612 0.925 1.208 2.192 0.919 1.882 1.637 1.829 3.725 0.357 0.186 15.855 Water Treatment Plant Usage 0.000 0.000 0.000 3.960 2.569 5.644 8.802 6.257 5.446 4.198 0.000 0.000 36.876 Total Accounted for Water in MG (Service Meter Readings + Unmetered Water + 202.454 147.073 158.938 223.038 226.210 446.955 345.178 523.360 364.270 425.591 317.739 [PHONE REDACTED].632 Emergency Interties (Exp.) + Wholesale (Exp.) + WFP Usage) Unaccounted for Water in MG (Total Pumpage - Total Accounted for + -17.909 23.704 49.616 81.261 167.255 -9.438 182.176 -25.678 50.181 -132.716 -125.842 -18.628 223.982 Emergency Interties (Imp.) + Wholesale (Imp.)) Percent Unaccounted for Water (Total Pumpage - Total Accounted for) -9.704 13.880 23.790 26.704 42.508 -2.157 34.545 -5.160 12.108 -45.315 -65.578 -9.846 5.875 Estimated Population Served Total Served 67871 67871 67871 67871 67871 67871 67871 67871 67871 67871 67871 67871 Kennewick Population Only 62498 62498 62498 62498 62498 62498 62498 65315 65315 65315 65315 65315 Estimated Number of Connections(1)(3) Single-Family Residential Connections 16966 16981 17004 17081 17130 17166 17219 17267 17290 17333 17413 17407 N/A Single Family Residential - WI Single Family Residential - WOI Multi-Family Residential Connections 1171 1172 1172 1174 1176 1176 1176 1177 1179 1179 1180 1183 N/A Multi-Family Residential WI Multi-Family Residential WOI Commercial/Industrial Connections 1802 1806 1817 1829 1842 1850 1856 1865 1869 1877 1923 1924 N/A Commercial/Industrial - WI Commercial/Industrial - WOI Municipal/Government Connections 138 138 138 142 144 145 145 146 146 149 149 149 N/A Municipal/Government - WI Municipal/Government - WOI Agricultural (Not above classes)(2) N/A Total Active Water System Connections 20077 20097 20131 20226 20292 20337 20396 20455 20484 20538 20665 20663 N/A Return Flows in MG Wastewater Treatment Plant 163.748 145.005 165.147 162.794 174.278 173.330 184.383 188.381 176.783 179.764 168.978 [PHONE REDACTED].333 Septic Systems (Excl. return from exempt wells) 55.800 50.400 55.800 54.000 55.800 54.000 55.800 55.800 54.000 55.800 54.000 55.800 657.000 Irrigation (excludes water from IDs) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Total Return Flows 219.548 195.405 220.947 216.794 230.078 227.330 240.183 244.181 230.783 235.564 222.978 [PHONE REDACTED].333 Net Withdrawals in MG (Pumpage + Wholesale Exported - Return) -35.003 -24.628 -12.393 87.505 163.387 210.187 287.171 253.501 183.668 57.311 -31.081 -37.344 1102.281 Colored cells represent calculated values With irrigation provided by City municipal system = WI; with irrigation provided by separate system = WOI All urban irrigation customers included in total water system pumpage Kennewick Domestic Water Summary 2007 Calculation of Consumption ---PAGE BREAK--- JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL Source of Supply Meter Readings in MG West Pasco Wellfield - - - - - - - - - - - - - Water Treatment Plant 158.37 144.53 197.85 299.60 426.74 496.86 626.19 630.42 528.82 348.09 174.54 158.48 4,190.50 Total Water System Pumpage 158.37 144.53 197.85 299.60 426.74 496.86 626.19 630.42 528.82 348.09 174.54 158.48 4,190.50 Peak Day in MG West Pasco Wellfield - - - - - - - - - - - - - Water Treatment Plant 6.18 5.64 10.59 13.11 18.64 20.07 22.65 22.00 20.34 14.92 7.24 6.57 167.95 Total Water System Pumpage 6.18 5.64 10.59 13.11 18.64 20.07 22.65 22.00 20.34 14.92 7.24 6.57 167.95 Interties - Amount Imported - - - - - - - - - - - - - Interties - Amount Exported - - - - - - - - - - - - - Wholesale - Amount Imported - - - - - - - - - - - - - Wholesale - Amount Exported - - - - - - - - - - - - - Service Meter Readings in MG Commercial 17.39 19.67 21.86 17.62 27.41 42.21 22.94 29.53 38.08 40.84 19.54 16.97 314.06 Fireline (0.10) 0.19 0.19 (0.16) 0.69 0.80 0.84 0.36 0.38 0.39 0.08 0.02 3.68 Municipal/Government 2.12 2.25 2.20 2.39 4.77 5.20 7.31 6.18 8.31 7.21 2.64 2.70 53.28 Housing Authority 2.31 2.07 1.74 1.82 7.73 6.69 8.98 8.48 11.92 9.65 (2.40) 1.10 60.09 Hotel/Motel 3.04 2.46 2.76 3.18 3.59 3.07 4.38 4.63 3.74 4.55 2.94 1.29 39.63 Industrial 0.17 0.10 0.17 0.16 0.35 0.26 0.85 0.64 0.33 0.43 (0.23) 0.05 3.28 Commercial Irrigation 2.64 (0.39) 0.50 9.62 14.67 40.76 40.84 46.80 47.76 28.90 35.19 (3.60) 263.69 Residential Apartment 15.38 17.17 17.15 19.98 24.33 20.21 26.86 26.88 29.92 28.23 13.49 5.30 244.90 Multi-Family Residential 5.91 6.77 7.57 4.54 8.75 12.18 14.25 11.90 16.66 14.41 2.64 6.89 112.47 Single-Family 72.45 76.08 79.46 101.95 185.69 247.68 305.87 307.74 352.25 256.32 77.09 44.10 2,106.68 School District 0.93 0.99 1.25 1.67 3.89 2.18 2.58 1.53 2.33 3.09 0.90 1.65 22.99 Simplot 10.43 11.39 10.35 9.19 6.15 3.41 15.36 29.99 23.53 19.20 6.08 4.23 149.31 Twin Cities Food 0.62 0.88 0.96 1.57 1.35 2.02 18.78 43.88 42.44 31.91 0.06 - 144.47 Reeser's Fine Food 7.40 7.21 7.72 7.63 7.74 7.94 8.01 8.40 9.03 10.48 8.30 6.33 96.19 Bybee Food 0.01 0.05 0.05 0.17 1.90 22.21 23.30 32.42 33.65 22.66 2.54 - 138.96 Total Consumption 140.70 146.89 153.93 181.33 299.01 416.82 501.15 559.36 620.33 478.27 168.86 87.03 3,753.68 Non-Revenue Water in MG No Bill Government 0.65 0.32 0.77 14.82 15.18 4.95 16.54 15.41 17.50 11.11 1.61 0.30 99.16 Water Treatment Plant Irrigation - - - 0.03 0.27 0.55 0.57 0.71 0.20 0.74 0.08 - 3.15 Fire Departments Water Use (estimated) - - 0.01 0.00 0.01 0.03 0.00 - - 0.01 - - 0.06 Public Works Water Use 0.07 0.16 0.20 0.21 0.06 0.21 0.22 0.34 0.25 0.21 0.43 0.30 2.65 Water Treatment Plant Backwash in MG 5.35 4.91 2.81 5.16 26.43 19.28 20.66 22.55 21.05 14.33 7.10 4.81 154.44 Total Accounted for Water in MG 146.77 152.28 157.72 201.56 340.96 441.83 539.14 598.37 659.33 504.67 178.08 92.44 4,013.14 Unaccounted for Water in MG 11.60 (7.75) 40.14 98.05 85.78 55.03 87.05 32.05 (130.51) (156.57) (3.54) 66.04 177.36 Percent Unaccounted for Water (Total Pumpage - Total Accounted for) 7.33% -5.36% 20.29% 32.73% 20.10% 11.08% 13.90% 5.08% -24.68% -44.98% -2.03% 41.67% 4.23% Estimate of Population Served Total Served 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 42,125.00 N/A Pasco Population Only - - - - - - - - - - - - N/A Estimated Number of Connections Commercial - WI 984 997 960 1,000 994 1,002 957 998 1,021 1,024 1,018 1,017 N/A Fireline 147 149 147 151 152 156 157 162 153 155 155 160 N/A Municipal/Government 52 52 49 51 51 52 50 51 51 51 51 53 N/A Housing Authority 30 30 29 30 30 30 30 30 30 30 30 30 N/A Hotel/Motel 25 26 26 25 25 25 25 25 24 24 24 25 N/A Industrial 15 16 15 15 17 16 17 16 16 16 16 16 N/A Commercial Irrigation 233 237 228 237 238 240 243 248 245 248 252 250 N/A Residential Apartment 137 137 137 138 136 135 138 134 134 134 135 136 N/A Multi-Family Residential 318 325 328 324 323 326 326 327 325 326 324 326 N/A Single-Family 12,886 12,976 12,911 13,098 13,035 13,120 13,250 13,321 13,392 13,424 13,415 13,439 N/A School District 27 27 27 27 27 28 28 28 28 28 28 29 N/A Non-Billable Water Connections 85 86 83 87 87 85 84 85 84 84 84 85 N/A Agricultural (Not above classes) - - - - - - - - - - - - N/A Total Active Water System Connections 14,939 15,058 14,940 15,183 15,115 15,215 15,305 15,425 15,503 15,544 15,532 15,566 183,325.00 Return Flows in MG Wastewater Treatment Plant 97.22 84.74 94.19 92.88 97.94 96.08 100.29 98.17 95.54 95.33 90.89 93.94 1,137.21 Septic Systems (Excl. return from exempt wells)(3) 14.45 13.76 14.46 14.16 13.93 13.59 14.31 14.42 13.22 14.40 14.65 15.30 170.64 Irrigation (excludes water from IDs)(4) - - - - - - - - - - - - - Process Water Reuse Facility Effluent - - 63.94 22.75 15.87 31.62 57.42 104.92 107.19 84.23 17.51 - 505.45 Water Treatment Plant Backwash Flow 5.35 4.91 2.81 5.16 26.43 19.28 20.66 22.55 21.05 14.33 7.10 4.81 154.44 Total return Flows 117.02 103.41 175.40 134.95 154.17 160.57 192.68 240.06 237.00 208.29 130.15 114.05 1,967.74 Net Withdrawals in MG (Pumpage + Wholesale Exported - Return) 41.35 41.12 22.46 164.65 272.57 336.29 433.51 390.36 291.83 139.80 44.39 44.43 2,222.76 Colored cells represent calculated values With irrigation provided by City municipal system - WI; with irrigation provided by separate system - WOI All urban irrigation customers included in total water system pumpage Determined by finding the number of all Residential Water connections with City Sewer minus all Residential water connections without having City Sewer. This number is multiplied by the average person occupancy in Pasco of 3.29. That number is multiplied by the City's average indoor water usage of 83 gpcd (as determined by City's Water Usage Study in 2001) times the number of days of the month. The irrigation water flows are through a second water meter for Commercial accounts that is included in the Commercial classification. (Service Meter Readings + Non-Revenue + Emergency Interties (Exp.) + Wholesale (Exp.)) (Total Pumpage - Total Accounted for + Interties (Imp.) + Wholesale (Imp.)) Type of Data Pasco Domestic Water Summary 2007 Calculation of Consumption ---PAGE BREAK--- Type of Data JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL Source of Supply Meter Readings in MG Water Treatment Plant 0.000 0.000 227.570 265.960 479.650 479.630 589.000 537.400 364.200 254.880 0.000 0.000 3,198.290 North Richland Wellfield 385.500 387.000 149.000 138.080 140.932 140.970 401.200 405.500 373.000 243.300 371.200 367.000 3,502.682 Columbia Well 0.410 0.820 0.500 0.590 12.261 27.670 16.770 8.380 3.450 3.410 1.220 1.760 77.241 Wellsian Way Wellfield 36.300 16.050 37.980 41.350 41.920 50.300 52.740 47.520 36.860 35.990 18.730 18.320 434.060 Harrison Well 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Total Water System Pumpage 422.210 403.870 415.050 445.980 674.763 [PHONE REDACTED].710 998.800 777.510 537.580 391.150 387.080 7,212.273 Plant Return Flows in MG Water Treatement Plant Backwash 0.000 0.000 7.250 8.670 12.379 15.022 12.332 9.532 8.547 3.737 0.000 0.000 77.469 North Richland Wellfield Return 238.960 233.890 139.360 24.790 33.360 63.770 121.770 155.700 123.960 151.470 213.910 216.300 1,717.240 Total Return Flows 238.960 233.890 146.610 33.460 45.739 78.792 134.102 165.232 132.507 155.207 213.910 216.300 1,794.709 Peak Day in MG Water Treatment Plant 0.000 0.000 9.230 10.300 20.700 21.800 21.800 18.400 16.800 14.000 0.000 0.000 N th Ri hl d W llfi ld 13 500 14 100 13 500 13 800 18 900 14 000 13 800 13 200 13 100 12 500 12 800 13 200 Richland Domestic Water Summary 2007 Calculation of Consumption North Richland Wellfield 13.500 14.100 13.500 13.800 18.900 14.000 13.800 13.200 13.100 12.500 12.800 13.200 Columbia Wellfield 0.113 0.338 0.140 0.140 1.100 1.050 1.040 1.080 0.640 1.110 0.540 0.650 Wellsian Way Wellfield 1.320 0.580 1.380 1.380 1.990 1.900 1.890 1.730 1.720 1.750 1.450 1.300 Harrison Wellfield 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Total Peak Day Water System Pumpage 14.933 15.018 24.250 25.620 42.690 38.750 38.530 34.410 32.260 29.360 14.790 15.150 Emergency Interties - Amount Exported 0.00 0.00 0.10 0.08 15.89 15.81 15.81 15.81 0.00 0.00 0.00 0.00 63.490 Service Meter Readings in MG Residential 80.281 60.628 74.191 116.912 224.356 372.339 408.077 403.247 340.401 250.231 96.545 60.640 2,487.848 Commercial 51.277 50.412 59.731 68.227 86.788 117.506 127.090 118.969 124.867 90.772 72.106 51.142 1,018.887 Industrial 27.093 23.382 23.322 27.759 34.888 48.050 53.240 52.896 48.483 29.092 30.105 21.320 419.630 Municipal/Government 1.953 1.672 2.492 6.815 11.680 18.179 21.518 21.268 20.260 12.133 4.618 2.245 124.833 Schools 0.865 1.043 2.075 4.419 9.691 13.891 16.517 12.814 13.627 3.854 1.891 1.149 81.836 Irrigation 0.020 0.000 1.937 37.202 77.584 113.767 126.705 120.106 123.393 64.632 7.544 0.685 673.575 Misc (FH, New Pipe, Meters, etc) 4.324 6.127 11.217 13.762 9.389 6.509 10.237 11.592 7.597 7.124 2.896 0.553 91.327 Total Consumption 165.813 143.264 174.965 275.096 454.376 690.241 763.384 740.892 678.628 457.838 215.705 137.734 4,897.936 Non-Revenue Water in MG Non-Billable Water - Unmetered Water 0.000 0.000 19.210 23.890 14.151 9.078 10.068 15.168 27.253 22.783 0.000 0.000 141.601 Total Accounted for Water in MG (Service Meter Readings + Non-Revenue + 404.773 377.154 340.885 332.521 530.151 793.921 923.364 937.102 838.388 635.828 429.615 354.034 6,897.736 Emergency Interties (Exp.) +Plant Return Flow Unaccounted for Water in MG (Total Pumpage - Total Accounted for + 17.437 26.716 74.165 113.459 144.612 -95.351 136.346 61.698 -60.878 -98.248 -38.465 33.046 314.537 Emergency Interties (Imp.) Percent Unaccounted for Water (Total Pumpage - Total Accounted for) 4.130% 6.615% 17.869% 25.440% 21.432% -13.649% 12.866% 6.177% -7.830% -18.276% -9.834% 8.537% 4.361% Estimated Population Served Total Served 47,382 47,703 46,290 48,519 48,552 48,915 49,272 48,942 49,131 49,311 48,417 48,819 N/A Richland Population Only 44,230 44,300 44,370 44,440 44,510 44,580 44,650 44,720 44,790 44,860 44,930 45,000 N/A Estimated Number of Connections(1)(2) Single-Family Residential Connections 14,364 14,466 13,984 14,415 14,419 14,527 14,646 14,536 14,579 14,640 14,676 14,799 N/A Commercial/Industrial Connections 1,430 1,435 1,446 1,758 1,765 1,778 1,778 1,778 1,798 1,797 1,463 1,474 N/A Total Active Water System Connections 15,794 15,901 15,430 16,173 16,184 16,305 16,424 16,314 16,377 16,437 16,139 16,273 N/A y , , , , , , , , , , , , Return Flows in MG Septic Systems (Excl. return from exempt wells) 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 1.299 15.588 Wastewater Treatment Plant 171.120 147.710 169.780 166.500 170.340 164.310 171.900 169.900 164.800 167.100 156.900 158.100 1,978.460 Irrigation (excludes water from IDs) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Total Return Flows 172.419 149.009 171.079 167.799 171.639 165.609 173.199 171.199 166.099 168.399 158.199 [PHONE REDACTED].048 Net Withdrawals in MG (Pumpage + Wholesale Exported - Return) 249.791 254.861 243.871 278.106 487.239 517.151 870.701 811.791 611.411 369.181 232.951 227.681 5,154.735 Colored cells represent calculated values With irrigation provided by City municipal system = WI; with irrigation provided by separate system = WOI All urban irrigation customers included in total water system pumpage ---PAGE BREAK--- Type of Data JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL Source of Supply Meter Readings in MG Wells 1,2,3,6,7,9,10 23.61 21.38 31.43 63.07 102.88 85.99 108.86 135.61 107.79 51.62 22.79 22.08 777.12 Total Water System Pumpage 23.61 21.38 31.43 63.07 102.88 85.99 108.86 135.61 107.79 51.62 22.79 22.08 777.12 Peak Day in MG Wells 1,2,3,6,7,9,10 0.98 0.96 1.48 2.96 4.07 4.65 5.64 4.90 4.55 2.47 0.99 0.96 5.64 Total Water System Pumpage 0.98 0.96 1.48 2.96 4.07 4.65 5.64 4.90 4.55 2.47 0.99 0.96 5.64 Emergency Interties - Amount Imported 0.00 0.00 0.00 0.00 15.81 15.81 15.81 15.81 0.00 0.00 0.00 0.00 63.24 Emergency Interties - Amount Exported 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Wholesale - Amount Imported 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Wholesale - Amount Exported 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Service Meter Readings in MG Single-Family 14.799 17.780 15.232 36.986 68.717 84.153 122.427 104.788 124.486 66.737 26.541 14.845 697.49 Multi-Family 3.038 2.446 2.750 3.890 6.860 8.660 10.520 12.420 12.988 6.722 3.397 2.163 75.85 Commercial/Industrial 0.858 0.973 0.906 1.101 2.570 3.615 4.196 4.268 4.857 2.685 0.901 0.789 27.72 Municipal/Government - Non-Revenue 0.042 0.021 0.023 0.165 0.911 1.194 1.790 1.326 2.318 0.628 0.256 0.825 9.50 Total Consumption 18.74 21.22 18.91 42.14 79.06 97.62 138.93 122.80 144.65 76.77 31.10 18.62 810.56 Non-Revenue Water in MG Non-Billable Water - Unmetered Water 0.35 0.30 2.97 1.74 0.59 0.81 2.24 1.31 1.95 0.83 1.34 1.04 15.47 Total Accounted for Water in MG (Service Meter Readings + Non-Revenue + 19.09 21.52 21.88 43.89 79.65 98.43 141.17 124.11 146.60 77.60 32.43 19.66 826.03 Emergency Interties (Exp.) + Wholesale (Exp.)) Unaccounted for Water in MG (Total Pumpage - Total Accounted for + 4.52 -0.14 9.55 19.19 39.05 3.37 -16.50 27.31 -38.81 -25.98 -9.64 2.41 14.33 Emergency Interties (Imp.) + Wholesale (Imp.)) Percent Unaccoutned for Water (Total Pumpage - Total Accounted for) 19% 30% 30% 38% 4% -15% 20% -36% -50% -42% 11% 1.8% Estimated Population Served Total Served 10850 West Richland Population Only 10850 Estimated Number of Connections(1)(2) Single-Family Residential Connections 3,152 3,156 3,163 3,197 3,225 3,244 3,267 3,283 3,301 3,309 3,320 3,318 Single Family Residential - WI 0 0 0 0 0 0 0 0 0 0 0 0 Single Family Residential - WOI 0 0 0 0 0 0 0 0 0 0 0 0 Multi-Family Residential Connections 91 91 91 91 91 91 91 91 91 91 91 91 Multi-Family Residential WI 0 0 0 0 0 0 0 0 0 0 0 0 Multi-Family Residential WOI 0 0 0 0 0 0 0 0 0 0 0 0 Commercial/Industrial Connections 67 66 67 66 67 66 68 68 68 68 68 70 Commercial/Industrial - WI 0 0 0 0 0 0 0 0 0 0 0 0 Commercial/Industrial - WOI 0 0 0 0 0 0 0 0 0 0 0 0 Municipal/Government Connections 30 30 30 30 30 30 30 30 30 30 30 30 Municipal/Government - WI 0 0 0 0 0 0 0 0 0 0 0 0 Municipal/Government - WOI 0 0 0 0 0 0 0 0 0 0 0 0 Agricultural (Not above classes)(2) 0 0 0 0 0 0 0 0 0 0 0 0 Total Active Water System Connections 3,340 3,343 3,351 3,384 3,413 3,431 3,456 3,472 3,490 3,498 3,509 3,509 Return Flows in MG Wastewater Treatment Plant 17.38 14.42 15.99 16.10 16.78 17.61 18.31 18.57 18.55 18.67 17.28 0.00 189.66 Septic Systems (Excl. return from exempt wells) 0.26 0.26 0.26 0.26 0.27 0.27 0.27 0.27 0.27 0.27 0.27 0.27 3.20 Irrigation (excludes water from IDs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Return Flows 17.64 14.68 16.25 16.36 17.05 17.88 18.58 18.84 18.82 18.94 17.55 0.27 192.86 Net Withdrawals in MG (Pumpage + Wholesale Exported - Return) 5.97 6.70 15.18 46.71 85.84 68.11 90.28 116.77 88.97 32.68 5.24 21.80 584.25 Colored cells represent calculated values With irrigation provided by City municipal system = WI; with irrigation provided by separate system = WOI All urban irrigation customers included in total water system pumpage West Richland Domestic Water Summary 2007 Calculation of Consumption ---PAGE BREAK--- Type of Data January February March April May June July August September October November December ANNUAL Source of Supply Meter Readings in MG Kennewick 184.55 170.78 208.55 304.30 393.47 437.52 527.35 497.68 414.45 292.88 191.90 189.20 3812.61 Intertie 0.00 0.00 0.00 0.00 -1.64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -1.64 Pasco 158.37 144.53 197.85 299.60 426.74 496.86 626.19 630.42 528.82 348.09 174.54 158.48 4190.50 Intertie 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Richland 422.21 403.87 415.05 445.98 674.76 698.57 1059.71 998.80 777.51 537.58 391.15 387.08 7212.27 Intertie 0.00 0.00 -0.10 -0.08 -15.89 -15.81 -15.81 -15.81 0.00 0.00 0.00 0.00 -63.49 West Richland 23.61 21.38 31.43 63.07 102.88 85.99 108.86 135.61 107.79 51.62 22.79 22.08 777.12 Intertie 0.00 0.00 0.00 0.00 15.81 15.81 15.81 15.81 0.00 0.00 0.00 0.00 63.24 Total Water System Pumpage 788.73 740.56 852.79 1112.88 1596.14 1718.94 2322.11 2262.51 1828.57 1230.17 780.38 756.84 15990.61 Table 3-2 2007 Domestic Water Summary Calculation of Net Consumptive Use by Quad Cities Total Water System Pumpage 788.73 740.56 852.79 1112.88 1596.14 1718.94 2322.11 2262.51 1828.57 1230.17 780.38 756.84 15990.61 Non-Revenue Water in MG Non-Billable Water 2.56 2.08 22.69 47.21 40.12 50.21 66.72 71.85 87.09 59.84 104.99 22.86 578.22 Total Accounted for Water in MG (Service Meter Readings + Non-Revenue + 773.08 698.02 679.42 801.00 1176.97 1781.14 1948.86 2182.94 2008.58 1643.69 957.87 673.97 15325.54 Emergency Interties (Exp.) + Wholesale (Exp.)) Unaccounted for Water in MG (Total Pumpage - Total Accounted for + 15.65 42.54 173.47 311.95 436.70 -46.40 389.07 95.38 -180.01 -413.52 -177.49 82.87 730.20 Emergency Interties (Imp.) + Wholesale (Imp.)) Percent Unaccounted for Water (Total Pumpage - Total Accounted for) 2% 6% 20% 28% 27% 17% 4% -10% -34% -23% 11% 4.57% Estimated Population Served Total Served 168 228 168 549 167 136 169 365 169 398 169 761 170 118 169 788 169 977 170 157 169 263 169 665 Total Served 168,228 168,549 167,136 169,365 169,398 169,761 170,118 169,788 169,977 170,157 169,263 169,665 City Population Only 159,703 159,773 159,843 159,913 159,983 160,053 160,123 163,010 163,080 163,150 163,220 163,290 Estimated Number of Connections Single-Family Residential Connections 47,368 47,579 47,062 47,791 47,809 48,057 48,382 48,407 48,562 48,706 48,824 48,963 Multi-Family Residential Connections 1,717 1,725 1,728 1,727 1,726 1,728 1,731 1,729 1,729 1,730 1,730 1,736 Commercial/Industrial Connections 3,543 3,555 3,574 3,901 3,925 3,949 3,959 3,972 3,986 3,995 3,707 3,728 Municipal/Government Connections 220 220 217 223 225 227 225 227 227 230 230 232 Agricultural (Not above classes) 1,217 1,234 1,188 1,237 1,232 1,242 1,200 1,246 1,266 1,272 1,270 1,267 Total Active Water System Connections 54,065 54,313 53,769 54,879 54,917 55,203 55,497 55,581 55,770 55,933 55,761 55,926 Return Flows in MG Wastewater Treatment Plant 449.47 391.88 445.11 438.27 459.34 451.33 474.88 475.02 455.67 460.86 434.05 422.78 5358.66 Septic Systems (Excl. return from exempt wells) 35.90 32.86 35.91 34.86 35.65 34.58 35.84 35.90 34.39 35.89 35.11 36.33 423.22 City Irrigation (excludes water from IDs) 0.00 0.00 0.00 32.38 40.43 44.10 69.82 65.85 44.77 16.19 0.00 0.00 313.54 Unaccounted for Water "Return" 6.26 17.01 69.39 124.78 174.68 -18.56 155.63 38.15 -72.00 -165.41 -71.00 33.15 292.08 Water Plant Backflow 244.31 238.80 149.42 38.62 72.17 98.07 154.76 187.78 153.56 169.54 221.01 221.11 1949.15 Total Return Flows 735.94 680.55 699.82 668.92 782.26 609.52 890.92 802.70 616.39 517.07 619.17 713.37 8336.65 Net Withdrawals in MG (Pumpage + Wholesale Imported - Wholesale Exported - Return) 52.79 60.01 152.97 443.96 813.87 1109.41 1431.19 1459.81 1212.18 713.10 161.21 43.46 7653.96 Net Consumption % (Pumpage - Return) / Pumpage 6.69% 8.10% 17.94% 39.89% 50.99% 64.54% 61.63% 64.52% 66.29% 57.97% 20.66% 5.74% 47.87% Colored cells represent calculated values ---PAGE BREAK--- Feb July Annual Feb Aug Annual Feb July Annual Feb Aug Annual Low High Annual Withdrawals (in MG) Surface 170.8 527.4 3812.6 144.5 630.4 4190.5 387.0 990.2 6701.0 702.3 2148.0 14704.1 Ground1,2 16.9 69.5 511.3 21.4 135.6 777.1 38.3 205.1 1288.4 Intertie3 -15.8 -63.5 15.8 63.2 0.0 0.0 -0.3 Subtotal 170.8 527.4 3812.6 144.5 630.4 4190.5 403.9 1043.9 7148.8 21.4 151.4 840.4 740.6 2353.1 15992.3 Returns (in MG) WWTP 145.0 184.4 2053.3 84.7 98.2 1137.2 147.7 171.9 1978.5 14.4 18.6 189.7 391.9 473.0 5358.7 Septic4 25.2 27.9 328.5 6.9 7.2 85.3 0.6 0.6 7.8 0.1 0.1 1.6 32.9 35.9 423.2 City irrigation5 NA 14.2 63.7 NA 19.3 89.1 NA 29.5 133.8 NA 5.9 27.0 NA 68.8 313.5 Unaccounted for water "return"6,7 - - 89.6 - - 70.9 - - 125.8 - - 5.7 - - 292.1 Water plant backflow8 4.9 22.6 154.4 233.9 134.1 1794.7 4.9 156.7 1949.1 Subtotal 170.2 226.5 2535.1 96.5 147.3 1537.0 382.2 336.1 4040.5 14.5 24.6 224.0 663.5 734.4 8336.6 Net Consumption Net Consumption (in MG) 0.6 300.9 1277.5 48.0 483.1 2653.5 21.6 707.8 3108.3 6.8 126.9 616.3 77.0 1618.7 7655.6 Net Consumption 0% 57% 34% 33% 77% 63% 5% 68% 43% 32% 84% 73% 10% 69% 48% Notes: Richland wellfield water withdrawal is technically surface water Table 3-3 2007 Water Balance Kennewick Pasco Richland West Richland Quad Cities Combined Total Ranney is considered surface water. Pasco does not use any back-up groundwater in the domestic system The City of West Richland shares and intertie with the City of Richland, allowing the City of West Richland to import water from Richland to meet summer water demands. The City of Richland also exports some water through an intertie with Tri-City Estates. Excludes water from irrigation districts/City of Pasco irrigation utility. Estimated based upon average irrigation usage from potable water system estimated in Tables 3-3 through 3-6 of Tri-Cities Urban Landscape Irrigation Plan (HDR/EES 2006). Assumed 10% overwatering on average based upon 2008 City of Cheney study to support WSP Update (HDR 2008), and that 50% of this excess water returns to groundwater, based upon Skagit County Instream Flow Rule (Chapter 173-503 WAC). This represents the portion of water that leaks to the shallow aquifer and ultimately the Yakima or Columbia Rivers. This has been estimated as a portion of the unaccounted for water from pipe leakage, which typically comprises the largest portion of unaccounted for water. conservatively assumed 40% of total annual system leakage to groundwater. Calculated on annual basis only to account for system measurement fluctuations Kennewick backflow goes to sewer. Richland includes both water treatment plant backwash and North Richland wellfield return. West Richland is a groundwater system without plant backflow. The septic return amount may differ from amount reported from City do to estimation of amount entering groundwater and returning to the river. See section 3.3.1. ---PAGE BREAK--- 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 2007-2013 2013-2027 2007-2013 2013-2027 2007-2013 annualized 2013-2027 annualized Projection Data: Kennewick -5.29% 4.74% Projection Data: Kennewick 4.65% 13.12% Projection Data: Kennewick 8.88% 1.48% 20.70% 1.48% Pasco 12.21% 30.59% Pasco 22.60% 40.95% Pasco 34.12% 5.69% 47.00% 3.36% Richland -3.19% 4.74% Richland 6.96% 13.12% Richland 21.99% 3.67% 21.18% 1.51% West Richland 0.54% 4.74% West Richland 11.08% 13.12% West Richland 26.05% 4.34% 50.90% 3.64% ADD Acre-feet January February March April May June July August September October November December January February March April May June July August September October November December January February March April May June July August September October November December MGD cfs Kennewick 566.35 1090.44 1730.47 2664.33 3871.83 5214.52 6832.91 8360.24 9632.14 10530.95 11119.86 11700.48 566.35 1090.44 1730.47 2664.33 3871.83 5214.52 6832.91 8360.24 9632.14 10530.95 11119.86 11700.48 566.35 1090.44 1730.47 2664.33 3871.83 5214.52 6832.91 8360.24 9632.14 10530.95 11119.86 11700.48 10.44 16.15 Pasco 486.02 929.56 1536.75 2456.20 3765.82 5290.62 7212.33 9147.02 10769.91 11838.17 12373.81 12860.17 486.02 929.56 1536.75 2456.20 3765.82 5290.62 7212.33 9147.02 10769.91 11838.17 12373.81 12860.17 486.02 929.56 1536.75 2456.20 3765.82 5290.62 7212.33 9147.02 10769.91 11838.17 12373.81 12860.17 11.47 17.75 Richland 1295.71 2535.15 3808.58 5177.01 7199.04 9294.35 12497.96 15514.65 17900.74 19550.51 20750.90 21938.81 1295.71 2535.15 3808.58 5177.01 7199.04 9294.35 12497.96 15514.65 17900.74 19550.51 20750.90 21938.81 1295.71 2535.15 3808.58 5177.01 7199.04 9294.35 12497.96 15514.65 17900.74 19550.51 20750.90 21938.81 19.57 30.28 West Richland 72.45 138.08 234.54 428.10 792.36 1104.77 1487.37 1952.06 2282.85 2441.27 2511.21 2578.96 72.45 138.08 234.54 428.10 792.36 1104.77 1487.37 1952.06 2282.85 2441.27 2511.21 2578.96 72.45 138.08 234.54 428.10 792.36 1104.77 1487.37 1952.06 2282.85 2441.27 2511.21 2578.96 2.30 3.56 2420.54 4693.23 7310.35 10725.65 15629.05 20904.26 28030.57 34973.96 40585.64 44360.89 46755.78 49078.42 2420.54 4693.23 7310.35 10725.65 15629.05 20904.26 28030.57 34973.96 40585.64 44360.89 46755.78 49078.42 2420.54 4693.23 7310.35 10725.65 15629.05 20904.26 28030.57 34973.96 40585.64 44360.89 46755.78 49078.42 43.78 67.74 Acre-feet January February March April May June July August September October November December January February March April May June July August September October November December January February March April May June July August September October November December Kennewick 629.72 1219.43 1918.93 2896.72 4133.68 5498.67 7124.78 8664.65 9962.60 10907.19 11558.28 12201.53 686.02 1327.82 2090.94 3161.56 4518.54 6017.00 7803.98 9495.66 10920.04 11953.97 12663.60 13364.56 709.97 1373.94 2164.14 3274.26 4682.32 6237.57 8093.01 9849.30 11327.48 12399.43 13133.97 13859.49 12.36 19.13 Pasco 545.36 1043.06 1724.39 2756.10 4225.62 5936.61 8092.96 10263.87 12084.91 13283.61 13884.65 14430.39 595.86 1139.64 1884.06 3011.30 4616.89 6486.30 8842.32 11214.24 13203.91 14513.59 15170.29 15766.56 651.85 1246.73 2061.09 3294.25 5050.71 7095.78 9673.18 12267.98 14444.60 15877.35 16595.75 17248.05 15.39 23.81 Richland 1254.38 2454.28 3687.09 5011.87 6969.39 8997.86 12099.28 15019.73 17329.70 18926.85 20088.95 21238.96 1385.90 2711.59 4073.66 5537.33 7700.09 9941.24 13367.82 16594.47 19146.63 20911.22 22195.17 23465.75 1580.64 3092.63 4646.09 6315.44 8782.10 11338.18 15246.26 18926.32 21837.11 23849.67 25314.03 26763.15 23.87 36.94 West Richland 72.84 138.82 235.81 430.42 796.64 1110.73 1495.40 1962.60 2295.18 2454.45 2524.77 2592.89 80.48 153.38 260.53 475.54 880.16 1227.18 1652.17 2168.35 2535.79 2711.76 2789.45 2864.71 91.33 174.05 295.64 539.62 998.77 1392.56 1874.83 2460.57 2877.54 3077.22 3165.38 3250.78 2.90 4.49 2502.31 4855.58 7566.22 11095.10 16125.33 21543.88 28812.41 35910.85 41672.40 45572.10 48056.65 50463.77 2748.25 5332.43 8309.18 12185.73 17715.67 23671.71 31666.28 39472.71 45806.37 50090.54 52818.50 55461.58 3033.79 5887.34 9166.96 13423.58 19513.91 26064.09 34887.27 43504.16 50486.72 55203.66 58209.13 61121.47 54.52 84.36 Acre-feet January February March April May June July August September October November December January February March April May June July August September October November December January February March April May June July August September October November December Kennewick 1033.07 2024.23 3130.39 4528.03 6197.11 8000.31 10077.00 12063.36 13796.33 15159.19 16214.64 17261.88 1149.52 2249.02 3485.77 5070.35 6978.87 9047.43 11442.36 13729.49 15714.25 17257.33 18433.56 19599.98 1230.44 2405.35 3732.61 5446.03 7519.06 9769.75 12382.76 14876.10 17033.77 18701.11 19961.20 21210.40 18.92 29.27 Pasco 712.19 1362.13 2251.88 3599.19 5518.24 7752.62 10568.59 13403.59 15781.69 17347.06 18131.97 18844.65 839.86 1606.32 2655.58 4244.43 6507.51 9142.45 12463.25 15806.48 18610.91 20456.91 21382.52 22222.97 958.22 1832.69 3029.80 4842.55 7424.55 10430.80 14219.57 18033.93 21233.56 23339.70 24395.76 25354.64 22.62 34.99 Richland 1313.84 2570.61 3861.86 5249.43 7299.74 9424.36 12672.78 15731.66 18151.13 19823.98 21041.17 22245.69 1567.73 3067.35 4608.12 6263.83 8710.34 11245.53 15121.68 18771.66 21658.67 23654.78 25107.17 26544.46 1915.42 3747.64 5630.13 7653.05 10642.15 13739.60 18475.42 22934.91 26462.21 28901.03 30675.54 32431.59 28.93 44.76 West Richland 76.30 145.40 246.99 450.82 834.40 1163.38 1566.28 2055.63 2403.97 2570.79 2644.44 2715.79 91.04 173.50 294.71 537.93 995.63 1388.18 1868.93 2452.83 2868.49 3067.54 3155.43 3240.56 137.81 262.64 446.12 814.29 1507.15 2101.37 2829.11 3713.00 4342.20 4643.52 4776.56 4905.43 4.38 6.77 2027 Medium Growth 2007 2013 2027 High Growth 2007 2013 2027 Low Growth 2007 2013 West Richland 76.30 145.40 246.99 450.82 834.40 1163.38 1566.28 2055.63 2403.97 2570.79 2644.44 2715.79 91.04 173.50 294.71 537.93 995.63 1388.18 1868.93 2452.83 2868.49 3067.54 3155.43 3240.56 137.81 262.64 446.12 814.29 1507.15 2101.37 2829.11 3713.00 4342.20 4643.52 4776.56 4905.43 4.38 6.77 3135.40 6102.37 9491.11 13827.46 19849.49 26340.67 34884.65 43254.23 50133.12 54901.03 58032.22 61068.01 3648.15 7096.20 11044.18 16116.54 23192.35 30823.58 40896.21 50760.46 58852.31 64436.56 68078.68 71607.97 4241.89 8248.32 12838.67 18755.92 27092.90 36041.53 47906.86 59557.94 69071.74 75585.36 79809.05 83902.06 74.85 115.80 Water Rights Acre-feet January February March April May June July August September October November December January February March April May June July August September October November December January February March April May June July August September October November December Prev+QC+return Kenn 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 25,322 22.59 34.95 Prev+QC+return Pas 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 17,170 15.32 23.70 Prev+QC+return Rich 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 64,850 57.85 89.51 Prev+QC+return WR 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 7,358 6.56 10.16 Quad Cities w/o Mit + Kenn 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 18,010 16.07 24.86 Quad Cities w/o Mit + Pas 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 11,469 10.23 15.83 Quad Cities w/o Mit + Rich 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 58,752 52.41 81.09 Quad Cities w/o Mit + WR 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6,771 6.04 9.35 Kennewick 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 16,200 14.45 22.36 Pasco w/ temp 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 9,659 8.62 13.33 Pasco 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7,849 7.00 10.83 Richland 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 56,942 50.80 78.59 West Richland 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4,961 4.43 6.85 Sum 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 87,762 78.29 121.13 Sum w/ QC 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 94,994 84.74 131.11 Sum w/ QC w/ return 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 114,700 102.32 158.31 25,000 30,000 City of Kennewick Accumulated Raw Water - Low Projection 25,000 30,000 City of Kennewick Accumulated Raw Water - Medium Projection 25,000 30,000 City of Kennewick Accumulated Raw Water - High Projection 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - Low Projection 2007 2013 2027 Pre-2003 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2003, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - Medium Projection 2007 2013 2027 Pre-2005 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 25,000 30,000 City of Pasco Accumulated Raw Water - Medium Projection 25,000 30,000 City of Pasco Accumulated Raw Water - Low Projection 25,000 30,000 City of Pasco Accumulated Raw Water - High Projection 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - Low Projection 2007 2013 2027 Pre-2003 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2003, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - Medium Projection 2007 2013 2027 Pre-2005 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Kennewick Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 16,200 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Pasco Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 7,849 ac-ft Pre-2005 w/Initial QC Water Rights, add. 1,810 ac-ft (2.5 cfs) Pre-2005 w/ 2.5 cfs "hole" from QC 1810 ac-ft Quad Cities water requiring mitigation 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Pasco Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 7,849 ac-ft Pre-2005 w/Initial QC Water Rights, add. 1,810 ac-ft (2.5 cfs) Pre-2005 w/ 2.5 cfs "hole" from QC 1810 ac-ft Quad Cities water requiring mitigation 0 5,000 10,000 15,000 20,000 25,000 30,000 January February March April May June July August September October November December Acre-feet Month City of Pasco Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 7,849 ac-ft Pre-2005 w/Initial QC Water Rights, add. 1,810 ac-ft (2.5 cfs) Pre-2005 w/ 2.5 cfs "hole" from QC 1810 ac-ft Quad Cities water requiring mitigation ---PAGE BREAK--- 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Mitigation Period (April to August) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - High Projection 2007 2013 2027 Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - High Projection 2007 2013 2027 Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 20 000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 Acre-feet Combined Quad Cities - Option 1 Using Fall "Shoulder" Period 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation Use Pre-2005 Water Initial QC 10 cfs Future QC Water outside of mitigation period Mitigation Period (April to August) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - High Projection 2007 2013 2027 Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation Mitigation Period (April to August) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - High Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 20,000 40,000 60,000 80,000 100,000 120,000 January February March April May June July August September October November December Acre-feet Month Figure 3 Combined Quad Cities Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 88,671 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 January February March April May June July August September October November December Acre-feet Month City of Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 56,942 ac-ft Quad Cities water requiring mitigation Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Medium Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 January February March April May June July August September October November December Acre-feet Month City of West Richland Accumulated Raw Water - Low Projection 2007 2013 2027 Mitigation Period (April to August) Pre-2005 Water Rights 4,961 ac-ft Initial QC Water Rights w/ Pre-2005, add. 1,810 ac-ft (2.5 cfs) Quad Cities water requiring mitigation ---PAGE BREAK--- 0 10,000 20,000 January February March April May June July August September October November December Month Rights during the middle of the year 0 10,000 20,000 January February March April May June July August September October November December Month Rights during the middle of the year 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 January February March April May June July August September October November December Acre-feet Month Combined Quad Cities - Option 2 Purchasing Future Mitigation 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 11,283 ac-ft Need - Plan Mitigation for 6657 ac-ft @ avg 59% net consumption 0 10,000 20,000 January February March April May June July August September October November December Month Rights during the middle of the year 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 January February March April May June July August September October November December Acre-feet Month Combined Quad Cities - Option 2 Purchasing Future Mitigation 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 11,283 ac-ft Need - Plan Mitigation for 6657 ac-ft @ avg 59% net consumption 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 January February March April May June July August September October November December Acre-feet Month Combined Quad Cities - Option 3 Using "Shoulder" Period and Purchasing Future Mitigation 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation Use Pre-2005 Water Rights and QCWR during the middle of the year Initial QC 10 cfs Plan Mitigation for a portion of 6,657 ac-ft 0 10,000 20,000 January February March April May June July August September October November December Month Rights during the middle of the year 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 January February March April May June July August September October November December Acre-feet Month Combined Quad Cities - Option 2 Purchasing Future Mitigation 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation 11,283 ac-ft Need - Plan Mitigation for 6657 ac-ft @ avg 59% net consumption 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 January February March April May June July August September October November December Acre-feet Month Combined Quad Cities - Option 3 Using "Shoulder" Period and Purchasing Future Mitigation 2027 Pre-2005 Water Rights 61,668 ac-ft Initial QC Water Rights w/ Pre-2005, add. 7,232 ac-ft (10 cfs) Quad Cities water requiring mitigation Use Pre-2005 Water Rights and QCWR during the middle of the year Initial QC 10 cfs Plan Mitigation for a portion of 6,657 ac-ft ---PAGE BREAK--- Year Kennewick Population Kenn. Population % Change Kenn. Demand (AF) Pasco Population Pasco Population % Change Pasco Demand (AF) Richland Population Richland Population % Change Richland Demand (AF) W. Richland Population W. Richland Population % Change W. Richland Demand (AF) Quad Cities Population Quad Cities Demand (AF) 2007 67,871 11,700 54,060 12,860 45,409 21,939 11,377 2,579 178,717 49,078 2008 69,106 12,060 57,133 13,591 47,239 22,743 11,866 2,691 185,344 51,085 2009 70,341 12,420 60,206 14,322 49,069 23,547 12,355 2,803 191,971 53,092 2010 71,576 12,780 63,279 15,053 50,899 24,351 12,844 2,915 198,598 55,099 2011 72,811 13,140 66,352 15,784 52,729 25,155 13,333 3,027 205,225 57,106 2012 74,044 13,500 69,424 16,515 54,559 25,959 13,820 3,139 211,847 59,113 2013 75,181 13,859 72,506 17,248 55,397 26,763 14,341 3,251 217,425 61,121 2014 76,318 14,384 74,940 17,827 56,235 27,168 14,862 3,369 222,355 62,748 2015 77,455 14,909 77,374 18,406 57,073 27,573 15,383 3,487 227,285 64,375 2016 78,592 15,434 79,808 18,985 57,911 27,978 15,904 3,605 232,215 66,002 2017 79 729 15 959 82 242 19 564 58 749 28 383 16 425 3 723 237 145 67 629 9.10% Quad Cities 20-year Demand Forecast (High Population Growth Scenario) 21.47% 20.15% 34.12% 2017 79,729 15,959 82,242 19,564 58,749 28,383 16,425 3,723 237,145 67,629 2018 80,866 16,484 84,676 20,143 59,587 28,788 16,946 3,841 242,075 69,256 2019 82,003 17,009 87,110 20,722 60,425 29,193 17,467 3,959 247,005 70,883 2020 83,140 17,534 89,544 21,301 61,263 29,598 17,988 4,077 251,935 72,510 2021 84,277 18,059 91,978 21,880 62,101 30,003 18,509 4,195 256,865 74,137 2022 85,414 18,584 94,412 22,459 62,939 30,408 19,030 4,313 261,795 75,764 2023 86,551 19,109 96,846 23,038 63,777 30,813 19,551 4,431 266,725 77,391 2024 87,688 19,634 99,280 23,617 64,615 31,218 20,072 4,549 271,655 79,018 2025 88,825 20,159 101,714 24,196 65,453 31,623 20,593 4,667 276,585 80,645 2026 89,962 20,684 104,148 24,775 66,291 32,028 21,114 4,785 281,515 82,272 2027 91,106 21,209 106,582 25,354 67,131 32,433 21,641 4,903 286,460 83,899 21.18% 1. The City of Kennewick's population in 2007 is Kennewick's service area population per the City's Annual Water Conservation Summary Report for 2007 (Kennewick 2008). 2. The City of Kennewick's 2012 and 2027 Populations are projections for the City of Kennewick from the 2008 Draft Benton County Comprehensive Plan (Benton County 2008). The Comprehensive Methodology: City of Kennewick 47.00% 50.90% 21.18% 1. The City of Richland's 2007 population is the service area population from the City of Richland’s Annual Water Conservation Summary Report for 2007. 1. The City of Pasco's demand forecast for 2007 to 2013 is generated based on information provided to HDR by the City of Pasco. Population for this period was projected from Pasco's known 2007 population (OFM and Pasco Planning Department) proportionately to the percent change in demand. 2. Using OFM's High growth population scenario, and estimating that Franklin County is and will remain 83 percent of the County's population, the City of Pasco is projected to increase in population by 47 percent between 2014 and 2027. The population and demand forecast past 2013 was projected based on this rate of growth. City of Richland 2. The City of Richland's 2012 and 2027 Populations are projections for the City of Richland from the 2008 Draft Benton County Comprehensive Plan (Benton County 2008). The Comprehensive Plan ll d h Ci f Ri hl d 28 f h C ’ j d h i d b OFM’ 2007 P l i P j i (Hi h i ) 4. Population values from the Benton County Comprehensive Plan, which is based on OFM's 2007 Population Projections, were comparable to Kennewick's estimated population projection on the City of Kennewick's City Demand Spreadsheet provided to HDR. 2. The City of Kennewick s 2012 and 2027 Populations are projections for the City of Kennewick from the 2008 Draft Benton County Comprehensive Plan (Benton County 2008). The Comprehensive Plan allotted the City of Kennewick 38 percent of the County’s projected growth, as estimated by OFM’s 2007 Population Projections (High series). 3. Population values were interpolated based on these three projections. 5. The City of Kennewick's demand forecast is based on the City's recorded demand in 2007 and the City's forecasted percent population growth. The demand forecast includes additional water that is projected to be needed for industrial use per the City of Kennewick's City Demand Spreadsheet provided to HDR. Industrial water use is projected at 1,120 AF by 2013 and 4,482 AF by 2027. City of Pasco 1. The City of West Richland's 2007, 2012, and 2027 population values are averages of values from two sources: The City of West Richland's Comprehensive Plan estimates and the Draft Benton County Comprehensive Plan estimate (which allotted the City of West Richland 7 percent of the County's projected growth, as estimated by OFM's 2007 Population Projections (High Series). The City of West Richland forecasts a higher population growth than estimated by Benton County/OFM. 2. Population values were interpolated based on these three projections. 3. The City of West Richland's demand forecast is based on the City's recorded demand in 2007 and the City's forecasted percent population growth. allotted the City of Richland 28 percent of the County’s projected growth, as estimated by OFM’s 2007 Population Projections (High series). 3. Population values were interpolated based on these three projections. 4. The City of Richland's demand forecast is based on the City's recorded demand in 2007 and the City's forecasted percent population growth. The demand forecast is comparable to the demand forecast in the City's 2002 Water System Plan, accounting for a reduction of approximately 3 MGD due to the City's replacement of leaking pipes. City of West Richland ---PAGE BREAK--- City 2000 2004 2007 Kennewick 56,038 60982 Pasco Richland West Ken. Pop Popl Total Water Produced (gallons) Gal per person/yr 2000 60,780 3,406,000,000 56,[PHONE REDACTED] 2004 2007 62,520 3,812,614,000 60,[PHONE REDACTED] 11700.48 [PHONE REDACTED] Per Capita ---PAGE BREAK--- Previously Projected Demands from 2001 Water System Plans City Projected 2007 Population Projected 2007 Demand (AF) Actual 2007 Population Actual 2007 Demand (AF) Old WSP AF/person Old 2007 projection adjusted (AF) Savings (proj - actual) (AF) Difference % Kennewick 62,520 Pasco 38,428 14,702 50,210 12,860 0.38 19,210 6,349 33% Richland 45,070 West Richland 10,326 3,147 10,850 2,579 0.30 3,307 728 22% w cons 10326 2835 10,850 2385 0.27 2,979 594 West Richland Population Demand (Avg day gpd) Depand gpy Demand AF/yr 2006 10,012 2,721,800 993,457,000 3,049 2007 10,326 2,809,900 1,025,613,500 3,147 2008 10,641 2,898,000 1,057,770,000 3,246 2009 10,955 2,986,100 1,089,926,500 3,345 2010 11,269 3,074,200 1,122,083,000 3,444 Bold from WSP, regular is interpolated Pasco Population Demand (MG) Demand gpy Demand AF/yr 2006 37,652 4,594 4,594,000,000 14,098 2007 38,428 4,791 4,790,640,000 14,702 2008 39,204 4,987 4,987,280,000 15,305 2009 39,980 5,184 5,183,920,000 15,909 2010 40,756 5,381 5,380,560,000 16,512 2011 5,577 5,577,200,000 17,116 2012 5,774 5,773,840,000 17,719 2013 5,970 5,970,480,000 18,323 2014 6,167 6,167,120,000 18,926 2015 6,364 6,363,760,000 19,530 2016 6,560 6,560,400,000 20,133 2017 6,757 6,757,040,000 20,737 2018 6,954 6,953,680,000 21,340 2019 7,150 7,150,320,000 21,944 2020 7,347 7,347,000,000 22,547 West Richland Population Demand (Avg day gpd) Depand gpy Demand AF/yr 2006 10,012 2,451,800 894,907,000 2,746 2007 10,326 2,531,150 923,869,750 2,835 2008 10,641 2,610,500 952,832,500 2,924 2009 10,955 2,689,850 981,795,250 3,013 2010 11,269 2,769,200 1,010,758,000 3,102 Bold from WSP, regular is interpolated 317,400 79350 ---PAGE BREAK--- Kennewick Pasco Richland West Rich. Totals Initial QCWR allocation (cfs) 2.5 2.5 2.5 2.5 10 (cfs) 16.1 17.7 30.3 3.6 67.7 (ac-ft/yr) 11,700 12,860 21,939 2,579 49,078 (cfs) - 4.4 0.2 0.8 5.4 (ac-ft/yr) - 3,201 57 194 3,452 (cfs) 19.1 23.8 36.9 4.5 84.4 (ac-ft/yr) 13,859 17,248 26,763 3,251 61,121 (cfs) - 10.5 0.6 1.3 12.3 (ac-ft/yr) - 7,589 205 307 8,101 (cfs) 29.3 35.0 44.8 6.8 115.8 QCWR used Quad Cities 20-year QCWR Forecast City Demand QCWR used 2007 2013 City Demand City Demand ( ) (ac-ft/yr) 21,210 25,355 32,432 4,905 83,902 (cfs) 7.2 21.7 2.3 1.3 32.4 (ac-ft/yr) 5,210 15,696 821 307 22,034 Available Qa Water Rights Pre-2005 Water Rights (ac-ft/yr) 16,000 7,849 56,941 4,961 85,751 "Hole" Water (ac-ft/yr) - 1,810 - - 1,810 Initial QCWR Allocation (ac-ft/yr) 1,810 1,810 1,810 1,810 Remainder of QCWR (ac-ft/yr) QCWR mitigation credit beyond initial 10 cfs allocation (cfs) 0.41 - 0.57 - 0.98 (ac-ft/yr) 298 - 414 - 712 Notes 1. 96,619 89,379 2027 City Demand QCWR used Prior to the approval of various supplemental water rights applications filed by the City of West Richland to Ecology, the City's 2. 3 The 12.3 cfs appears to show that the Quad Cities exceed the 10.0 cfs initial allocation and tapping into QCWR that require mitigation for use. However, based on a coordinated operational strategy amongst the four cities, there are opportunties to avoid using QCWR water requiring mitigation. These strategies include timing on the use of the 1.3 cfs from the City of West Richland and sharing mitigation credit for QCWR water between the four cities. pp pp g pp y y gy, y water system was limited by the Qi constraints on individual wells. To meet peaking demands, these individual well constraints required the City to access QCWR water through its intertie with the City of Richland. In 2007, an average of 0.8 cfs was withdrawn through the intertie for four months (May - August). With approval of the City's supplement water rights applications by Ecology (Aug. 2007), the City's water system can now support the 20-yr demand projection without the need for the City of Richland intertie. However, prior to the approval of the supplemental rights, the City entered into an agreement with Richland to purchase a minimum of 100 MG per year. It is assumed that into the future, the City will take the 100 MG (307 ac-ft) over a four month period similar to 2007 and will be managed to optimize operations, system need, and impacts to the river system. The City of Richland is using part of their initial 2.5 cfs allottment of the QCWR to provide irrigation water to BMID in order serve developable land along the Keene Rd. cooridor in South Richland that was not previously being served by BMID and was designated as non-irrigable within the KID boundary. The land area is 391 acres per tech memo "South Richland Irrigation Service Options Analysis" (EES, 2004). Using accepted irrigation projections from the "Tri-Cities Urban Area Landscape Irrigation Plan" (HDR/EES 2006), this table estimates current water use at 7% of the potential max for complete buildout. 2013 and 2027 projections are estimated based on 25% and 100% respectively. Because the water is used for irrigation, the period of use is 6 months and the cfs amount has been adjusted accordingly. 4 5 6 7 Mitigation credit for QCWR water beyond initial 10 cfs QCWR allocation provided by City of Kennewick's contribution towards its ASR project. The project expects to provide 100 ac-ft of mitigation water as a contribution by the City. With a calculated 34% annual consumptive use for the City of Kennewick, this equates to approximately 298 ac-yr of available water for use. This mitigation is discussed further in Section 4.4. Mitigation credit for QCWR water beyond initial 10 cfs QCWR allocation provided by City of Richland's contribution towards its Amon Creek habitat project. As discussed in section 4.4, the value contributed by the City equates to 180 ac-ft of mitigation water. With a calculated 43% annual consumptive use for the City of Richland, the Amon Creek Habitat project provides mitigation for approximately 414 ac-ft of water. The water right has been reduced by 200 ac-ft to account for the anticipated City of Kennewick ASR funding agreement with Ecology to transfer 200 ac-ft of its inchoate water rights in exchange for state funding on the water storage project. At the time of the QCWR settlement, the City of Pasco was in a water rights deficit of 2.5 cfs (in the "hole"). In addition to the 10 cfs initial allocation of the QCWR, Ecology agreed to consider the hole filled upon settlement of the QCWR and its issuance.