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City of Santa Ana, CAI SEWER RATE STUDY <br />Figure B- 13: Length of Pipe Installed by Year and by QSR Ratings <br />Figure B 14 provides a map of sewer mains color coded by QSR Grade (using the Raw QSR Grading <br />Method). This map makes it apparent that a majority of the higher QSR graded pipes are in the older, <br />downtown portion of the city. For comparative purposes, Figure B 15 was created to relate mains with <br />high QSR scores (3 and above) to City- identified repair locations. <br />BLACK & VEATCH I Appendix B: Sewer CIP Prioritization Prncess <br />65B -242 <br />