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RPV SANITATION SEWERS: CONDITION <br />Public Reports from County of Los Angeles: Department of Public Works <br />REPORTS DATED 2/9/09, 8/5/09, 1/5/12, 6/5/13 <br />SUMMARY: REPORTS TO RPV PUBLIC WORKS THROUGH JUNE, 2013 <br />COUNTY OF LOS ANGELES: "Should be included in your agency's Sewer System Management Plan as a reference <br />in Chapt. 8.0 System Evaluation and Capacity Assurance Plan." <br />1. MAINTENANCE REPORTS (Covers Capacity, Blockage I Flow Restrictions, Infiltration) <br />FEET MILES PERCENT REPORT DATE <br />EST. TOTAL RPV: 735,699 139 100% 615/13 115112 815/09 2/9/09 Remaining <br />Pipe Length CTTV'd * 501,463 95 68% 266,727 31,410 126,735 76,591 233,928 <br />Pipe Condition % of Completed <br />1 . Minor /Excellent 197,381 37 39% 118,265 162 75,032 3,922 <br />2. Min to Mod/Good 131,057 25 26% 34,034 27,710 22,560 46,753 <br />3. Moderate/Fair 78,212 15 16% 45,430 1,147 21,737 9,898 <br />4. Significant/Poor 88,648 17 18% 64,043 1,977 7,131 15,497 <br />5. Most Significant/ 6,165 1 1% 4,955 414 275 521 <br />Immediate Attention <br />* LACDPW June 5, 2013 report lists RPV total CCTV'd as 502, 131 feet, 688 feet more than adding individual reports. <br />EXPLANATION OF RATINGS: <br />Sewer pipe considered at capacity when flow is 50% or greater of pipe diameter. <br />Causes include line blockage, sag in the line, groundwater infiltration. <br />Classifications of 3, 4 and 5 "have been incorporated into our enhanced maintenance <br />cleaning schedule with corrective action taken as noted on the Quick Maintenance <br />Rating Report Priority List (Enclosure 2)" <br />2. STRUCTURAL REPORTS (Estimated Time To Failure)* <br />EST. TOTAL RPV: 735,699 139 100% 6/5/13 1/5112 815/09 219/09 Remaining <br />Pipe Length CTTV'd 501,463 95 68% 266,727 31,410 126,735 76,591 233,928 <br />Pipe Condition <br />1 . Minor /Excellent 332,484 <br />2. Min to Mod/Good 51,820 <br />3. Moderate/Fair 68,715 <br />4. Significant/Poor 20,948 <br />5. Most Significant/ 27,496 <br />Immediate Attention <br />% of Completed <br />63 66% <br />10 10% <br />13 14% <br />4 4% <br />5 5% <br />175,243 <br />24,258 <br />40,550 <br />9,318 <br />17,358 <br />20,489 <br />3,406 <br />2,494 <br />3,803 <br />1,218 <br />Total CTTV'D: 1/5/12 Rpt: 31,410 <br />Total CTTV'D: 6/5/13 Rpt: 266,727 31,410 <br />*"ESTIMATED TIME TO FAILURE" DEFINITIONS: <br />96,175 <br />17,848 <br />4,523 <br />2,853 <br />5,336 <br />126,470 <br />127,043 <br />1 . Minor/Excellent: <br />2. Min to Mod/Good <br />Unlikely in foreseeable future <br />20 years or more <br />3. Moderate/Fair 1 O to 20 years <br />4. Significant/Poor 5 to 10 years <br />5. Most Significant/ Has failed within 5 years <br />3. FUTURE PROJECT: (from LA DPW 6/5/13 letter to RPV DPW) <br />40,577 <br />6,308 <br />21,148 <br />4,974 <br />3,584 <br />76,591 <br />76,591 <br />"The Sewer Condition Assessment Program will be performing future closed-circuit television (CCTV) inspection <br />of the remaining sewer lines within the City of Rancho Palos Verdes according to the following schedule." <br />Schedule Report # CTTV Feet % of Total Status <br />2011-2012 YOTV1112C 233,928 31.8 In progress,tobeavailableNLT6/5/14. <br />REC EIV ED F R OM ....1a.~a.t-....1.111.~-----­ <br />AND MADE A PART OF TH E <br />COUN CIL MEETING OF_,_.ia:...--#-~--.... <br />OFFICE OF THE CITY CLERK <br />CARLA MORREALE, CITY CLERK <br />Bob Nelson; CC Mtng <br />Feb. 10,2014