65B - PROPOSED WATER AND SEWER RATE ADJ

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SEWER RATE STUDY I City of Santa Ana, CA LIST OF FIGURES Figure ES - 1: Installed Mains by Decade ........................................................ .............................10 Figure ES - 2: Criticality Heat Map Graphic by Cost and R &R Strategy Groups ........... 11 Figure ES - 3: Projected Revenues and Revenue Requirements - No Revenue Increases............................................................................................... .............................13 Figure ES - 4: Monthly Single Family Residential Bills (15 HCF usage ) ..........................17 Figure 1 Mains by Installation Decade ........................................................... ............................... 26 Figure 2: QSR Ratings by Install Year ............................................................. ............................... 28 Figure 3: QMR Ratings by Install Year ........................................................... ............................... 28 Figure 4: Criticality Heat Map Graphic by Cost and R &R Strategy Groups .................... 30 Figure 5: Projected Revenues and Revenue Requirements - No Revenue Increases, Status Quo .................................................................... ............................... 37 Figure 6: Monthly Single Family Residential Bills (25 HCF usage) .... ............................... 53 Figure A- 1: Annual Capital Asset R &R Needs for Water and Sewer Assets over30 -Year Period ....................................................................... ............................... 63 Figure A- 2: Annual Capital Asset R &R Needs for the Sewer System ............................... 64 Figure B- 1: Example Risk Heat Map Graph Relating PoF and CoF Scores .................... 68 Figure B- 2: Sewer Pipe Material Percentages (by Length) .................. ............................... 69 Figure B- 3: Map of Sewer Mains Color -Coded by Pipe Material ........ ............................... 70 Figure B- 4: Map of Sewer Mains that have been Lined ......................... ............................... 71 Figure B- 5: Sewer Pipe Diameters by Miles Installed ............................ ............................... 72 Figure B- 6: Map of Sewer Mains Color -Coded by Pipe Diameter ...... ............................... 73 Figure B- 7: Annual and Cumulative Miles of Installed Pipe by Year ............................... 74 Figure B- 8: Map of Sewer Mains Color Coded by Pipe Install Decade ............................ 75 Figure B- 9: Map of Sewer Mains Color -Coded by CCTV Inspection Year ...................... 77 Figure B- 10: Map of the Identified EMLs, FSEs and Spills ...................... .............................79 Figure B -11: Map of the Sewer Main Repairs ............................................ ............................... 80 Figure B- 12: QSR Ratings by Percent of Total System Main Length ............................... 82 Figure B- 13: Length of Pipe Installed by Year and by QSR Ratings .. ............................... 83 Figure B- 14: Map of Mains Colored by QSR Grade (Raw QSR Grading Method) ............................................................................................... ............................... 84 Figure B- 15: Map of Sewer Mains with High QSR Scores and Repairs ........................... 85 Figure B- 16: Map of Sewer Mains Color -Coded by Overall QSR Segment Score..................................................................................................... ............................... 87 Figure B- 17: QMR Ratings by Percent of Sewer System Length ........ ............................... 88 V 65B -165 NOVEMBER 2014