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125 found problem areas outside the PMP, with those lines becoming a higher priority 126 due to inflow or water seepage or root issues in the lines, accelerating repair or 127 replacement of those lines. 128 129 Specific to sanitary sewer connections, Mr. Culver displayed various types of 130 connections found in the Roseville system, with a typical 4" sewer line traversing 131 from the home into the street and tying into the sewer main using a Wye connection, 132 with the property line variable (Attachment A). Mr. Culver noted that Roseville 133 has 10,186 sewer service connections — residential and commercial — with most of 134 those constructed of vitrified clay pipe (VCP) and at variable depths, locations, and 135 some with complicated connections to accommodate the gravity now system. 136 Again, Mr. Culver advised that any new connections are constructed of PVC pipe. 137 Mr. Culver reviewed connections in more detail, including saddle connections used 138 for repairs; length of life of those connections estimated at approximately 50 years 139 and well outlasting clay pipes, but depending on their type of soils with sandier 140 versus clay soils providing bettlongevity. For new homes or businesses 141 connecting to existing systems, M . ulver advised that the entire segment of pipe 142 was cut out and refit, called "in line connections" are more intrusive. 143 ,� 144 Mr. Culver provided pictures of typical in ividua sanitary sewer line connections 145 from private properties into the City's sanitary sewer mains, and displayed 146 problems encountered including water flow, offset joints, settling of some joints, 147 and other areas of pipe that may not be good candidates for lining. Mr. Culver 148 noted that a very common problem with mains and serge lines is root intrusion 149 into the pipe with roots seeking nutrients (e.g. sewage with very small roots finding 150 the joints or cracks and then larger roots growing in and clogging those pipes, 151 ultimately comIStomi sing the integrity of the pipe and joint and reducing capacity. 152 With a newly lined pipe, Mr. Culver noted capacity and flow are much better 1534tAthrough that smooth surface. �qNv 154 155 the request of Member Seigler, Mr. Culver advised that once the lining product 156 is set it becomes cured, hard plastic and roots would have difficulty getting through 157 it without a joint or crack to access. 158 159 Mr. Cu reviewed typical sanitary sewer problems encountered by property 160 owners an data researched by staff from available city records, including the 161 following: ""'011llllllll 162 • From permiNerconds, it appears about 50 "repair/alteration" permits are issued 163 per year for sanitary sewer service-related issues 164 • The typical repair cost is not listed on permits but in all likelihood probably 165 averages around $5,000 each (depending on street restoration expenses) 166 • Options for repair include open cut (usually for spot repairs or total 167 replacement) and lining of service lines 168 • The cost to line a sanitary sewer service line is about $100 per linear foot 169 Page 4 of 13