WATER RESOURCES SUMMARY October 217 INFLOWS & OUTFLOWS Total for Year to Date (acrefeet) Month This Year Last Year BASIN SUPPLIES Water Purchases from MWD (excludes In Lieu) 7,648 34,593 28,53 Water into MWD Storage Account (excludes In Lieu) SAR & Santiago Creek Flows 5,714 22,5 17,76 (accounts for storage to/from recharge facilities) GWRS Water to Forebay 7,166 26,179 19,421 GWRS Water to MidBasin Injection Wells 124 517 55 GWRS Water to Talbert Barrier 1,278 8,444 11,921 OC44 Water to Talbert Barrier 12 12 4 Alamitos Barrier Water 121 389 542 Incidental Recharge (estimated) 4,3 17,2 12, Evaporation from Recharge Basins (271) (1,455) (1,383) River Flow Lost to Ocean Total Groundwater Recharge 26,92 17,93 89,31 WATER PRODUCTION Groundwater Production 11,82 7,73 116,756 MWD Storage Program Withdrawals Total Groundwater Production 11,82 7,73 116,756 BASIN BALANCE Change in Groundwater Storage 14,29 37,2 (27,455) Change in Groundwater Storage excluding MWD Stored Water 14,29 37,2 (27,455) Accumulated Overdraft 29,8 46,492 Accumulated Overdraft excluding MWD Storage 292,522 46,668 IN LIEU WATER OCWD In Lieu Purchases 15,162 42,242 MWD In Lieu Storage Total In Lieu 15,162 42,242 OTHER KEY INFORMATION 1. MWD Water Deliveries to Producers 21,573 69,183 28,121 2. Basin Production Percentage 8.8% 62.% 8.6% 3. Total Water Demand 34,94 146,474 151,16 4. Total GWRS Production 8,578 35,183 31,888 5. Green Acres Project Water 371 1,811 1,886 6. SAR Water Quality Total Dissolved Solids (TDS) of SAR below Prado Dam (ppm) 698 69 Total Nitrogen of SAR below Prado Dam (ppm) 5.4 3.7 7. MonthEnd Water Storage Behind Prado Dam 4 269 8. MonthEnd Water Storage in Recharge Facilities 1,35 9,477 9. Water Storage Change in Recharge Facilities (97) (4,247) (1,364) 1. Total Artificial Recharge 21,792 9,73 77,264 11. Monthly Mean Temperature at Santa Ana Fire Station ( F) 74.2 71.1 12. Rainfall at FHQ (inches)..3.72 11/9/217
3 Orange County Sanitation District Influent Flows Report 25 Flow (MGD) 2 15 1 5 Plant 1 Influent Plant 2 Influent Total Flow 22 23 24 25 26 27 28 29 21 211 212 213 214 215 216 217 218 5 21718 Water Demands/Groundwater Pumping/RA Revenue Report Acrefeet (Thousands) 4 3 2 1 Total Water Demand Budgeted Total Pumping Budgeted Total Water Demand Actual Total Pumping Actual Monthly Accumulated Total for the Year Budget Actual Budget Actual Difference Percent Total Water Demand Total Pumping 36,6 34,94 159,1 146,474 12,626 92.6% 26,4 11,82 117,7 7,73 46,97 6.9% RA Revenue $11,748, $5,251,944 $52,376,5 $31,474,958 $2,91,542 6.9% Page 2 of 1
Accumulated Overdraft Accumulated Overdraft (TAF) (1) (2) (3) (4) Basin Full 1969 (5) 1969 1974 1979 1984 1989 1994 1999 24 29 214 219 Calendar Year Overdraft w/o MWD Storage Water Overdraft 6 YTD Change in Groundwater Storage in OCWD 4 Change in Storage (TAF) 2 2 4 6 8 1 9899 99 1 12 23 34 45 56 67 78 89 91 111 1112 1213 1314 1415 1516 1617 1718 Water Year Page 3 of 1
PRODUCERS WATER USAGE SUMMARY October 217 (AF except BPP) 21718 21617 YTD OCT 21718 21617 WATER Ground In Reclaimed Total Total YTD YTD % Diff 217 YTD YTD AGENCY water (1) Lieu Water Import (2) Demand Demand Demand Demand BPP BPP BPP Anaheim 742 3,56 4,844 5,586 23,27 21,774 17% 77.% 77.5% 8.5% Buena Park 921 272 1,193 5,189 4,767 19% 77.2% 74.3% 85.3% East Orange County 1 71 81 81 336 35 11% 88.8% 89.2% 84.3% Fountain Valley 223 355 157 552 932 4,14 3,74 17% 74.6% 77.8% 93.7% Fullerton 985 643 1,49 2,393 9,933 9,683 13% 68.% 76.% 79.9% Garden Grove 1,28 211 1,83 2,111 8,524 8,465 11% 58.7% 67.5% 72.9% Golden State 24 1,379 2,4 2,29 9,93 9,135 1% 71.7% 7.1% 76.3% West OC System 14 1,29 1,313 5,354 5,19 13% 7.9% 3.% 94.9% East OC System 1 796 896 3,738 3,834 98% 11.2% 21.9% 53.3% Huntington Beach 24 1,917 2,262 2,466 1,49 1,37 14% 86.% 75.8% 6.6% Irvine Ranch 2,626 1,834 1,29 166 4, 16,371 24,219 68% 159.7% 151.% 97.7% DRWF Clear 698 698 3,491 11,3 31% na na na DRWF Color 758 758 2,947 2,929 11% na na na Laguna Beach 258 326 326 1,379 1,371 na 79.3% 2.% 1.% La Palma 172 172 699 851 82% 99.8% 99.9% 55.2% Mesa Water (MW) 33 1,179 64 1,179 1,573 6,886 6,893 1% 1.% 1.% 98.7% MW Clear 156 156 1,64 3,418 48% na na na MW Color 175 175 1,752 2,853 61% na na na Newport Beach 54 98 46 1,145 1,245 5,886 5,646 14% 8.3% 8.3% 95.5% Orange 982 72 1,568 2,551 1,756 1,112 16% 66.7% 66.6% 79.5% OCWD (GAP) 4 4 22 77 29% 1.% 1.% 1.% Santa Ana 1,229 579 54 1,895 3,178 12,96 12,561 13% 57.9% 6.9% 75.3% Seal Beach 1 215 316 317 1,327 1,322 1% 68.1% 35.5% 36.8% Serrano 193 78 271 1,141 1,12 14% 71.1% 81.9% 76.3% Tustin 286 679 732 1,18 4,228 3,942 17% 94.7% 91.9% 83.1% Westminster 495 15 5 995 4,84 3,95 15% 6.3% 73.4% 72.7% Yorba Linda 84 549 1,133 1,937 8,85 7,554 17% 69.9% 7.% 68.6% SUBTOTAL: 11,483 15,162 1,53 21,545 34,558 144,473 147,461 98% 8.8% 8.7% 8.6% Other Producers 319 28 347 2, 3,555 56% (Est ~3% of Subtotal) TOTAL: 11,82 15,162 1,53 21,573 34,94 146,474 151,16 8.8% 8.7% 8.6% OCWD (Talbert Barrier) 1,278 12 1,29 8,457 11,926 OCSD (GAP) na 5 na 5 152 316 Estimated (1) Excludes MWD CUP Withdrawals (2) Includes MWD CUP Withdrawals & MWD In Lieu Water 11/9/217 1:39 Page 4 of 1
35 Annual Groundwater Production 3 Production (TAF) 25 2 15 1 5 25 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 21516 21617 21718 YTD Total Demand in OCWD 2 Total Demand (TAF) 15 1 5 9899 99 1 12 23 34 45 56 67 78 89 91 111 1112 1213 1314 1415 1516 1617 1718 Water Year Groundwater MWD+OCWD In Lieu CUP Withdrawals Import Recycled Water Page 5 of 1
3 Annual Forebay Recharge 25 Recharge (TAF) 2 15 1 5 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 21516 21617 21718 12 YTD Artificial Recharge by OCWD 1 Recharge (TAF) 8 6 4 2 9899 99 1 12 23 34 45 56 67 78 89 91 111 1112 1213 1314 1415 1516 1617 1718 Water Year SAR & Santiago Purchases CUP Direct GWRS Page 6 of 1
RECHARGE AREAS REPORT October 217 Percolation (AF) Remarks RIVER SYSTEM 2,212 1,91 af MWD CRA Water in Lower SAR DESILTING SYSTEM OFFRIVER SYSTEM 2,646 SAR WARNER SYSTEM 1,4 SAR OLIVE BASIN Passive System ANAHEIM LAKE 1,857 MWD CRA Water MINIANA LAKE 254 MWD CRA Water MILLER BASIN 1,79 MWD CRA Water KRAEMER BASIN 988 MWD CRA Water LA PALMA BASIN MIRA LOMA 5,693 1,463 GWRS, MWD CRA Water LA JOLLA BASIN PLACENTIA BASIN RAYMOND BASIN FIVE COVES BASIN 774 558 BURRIS BASIN RIVER VIEW BASIN FLETCHER BASIN SANTIAGO BASINS SANTIAGO CREEK TOTALS 5YR AVERAGE 18 445 2,26 16,657 FLOWS TO RECHARGE AREAS (AF) LOSSES FROM RECHARGE AREAS (AF) Imperial Headgates (estimated) 4,594 Est'd SAR flow past Chapman Ave. GWRS 7,169 OC28 (MWD) 7,46 Est'd Santiago Cr. flow to SAR OC28a (MWD) 188 Est'd flows past Raymond Basin CB11 CB18 Est'd local Forebay inflow below Imperial 15 Calc'd evap (inches) Estimated 4.65 Est'd local Santiago inflow (estimated) Est'd evaporative losses 271 Irvine lake releases (OC13 MWD) Villa Park Dam releases (estimated) Precip at Warner Basin (inches) Precip direct to open water surfaces TOTAL INFLOW 19,561 TOTAL LOSSES 271 STORAGE CHANGES (AF) Facility Begin End Net Deep basins 7,334 6,85 529 TOTAL INFLOW 19,561 Santiago Pits 3,986 3,545 441 TOTAL LOSSES 271 River STORAGE CHANGE 97 Offriver CALC'D PERCOLATION 2,26 Irvine Lake TOTAL 11,32 1,35 97 SUMMARY (AF) Page 7 of 1
DEEP BASINS MONTHLY STATUS October 217 (values in acrefeet) Facility Storage Storage Maximum Total Max Avg Avg W.S. Start End Storage Perc Perc Perc Elev Desilting Ponds 22 22 23 na na na FosHuckleberry 527 523 63 na na na na Conrock Basin 553 553 66 na na na na Warner Basins 2,775 2,767 2,81 1,4 14 14 237 Olive Pit 29 23 183 24 11 8 25 Anaheim Lake 1,81 1,217 2,3 1,857 12 6 21 MiniAnaheim Lk 3 5 21 254 14 8 223 Miller Basin 196 132 34 1,79 75 58 212 Kraemer Basin 31 389 1,5 988 94 32 176 La Palma Basin 29 27 15 5,693 219 184 213 Mira Loma 11 62 1,463 6 47 215 La Jolla Basin 3 5 36 774 29 25 21 Placentia Basin 35 na na na na Raymond Basin 1 4 37 558 na na na Five Coves Basins 14 145 35 na na na na Burris Pit 918 748 2,67 18 8 6 153 River View Basin 12 na na na na Fletcher Basin 6 na na na na Santiago (Bond) 2,895 2,491 8,69 445 19 14 212 Santiago (Blu Dia) 1,91 1,54 5,24 22 Totals 11,32 1,35 26,115 15,642 Prado Dam 1 4 25, Page 8 of 1
Cumulative Forebay Rainfall 25 2 Rainfall (Inches) 15 1 5 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 25Yr Avg. Rain 21617 21718 8 Temperature at Santa Ana Fire Station Temperature (F ) 75 7 65 6 55 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 15yr. Avg. 21617 21718 Page 9 of 1
Water Level Elevation (Feet MSL) 4 3 2 1 1 2 3 TALBERT BARRIER MONITORING WELL OCWDM26 4 27 28 29 21 211 212 213 214 215 216 217 218 Talbert/Lambda Aquifer Mergence Zone Perforated Interval: 71 135 ft. bgs Talbert Barrier Injection Protective Level to Prevent Seawater Intrusion Fountain Valley Groundwater Production IRWD Groundwater Production Mesa Water Groundwater Production Huntington Beach Groundwater Production Newport Beach Groundwater Production 3, 6, 9, 3, 2, 1, Groundwater Production (Aft) Talbert Barrier Injection (Aft) Page 1 of 1