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261 caught in the laterals with the smaller and smoother liner applications now available with 262 improved technologies. 263 264 Member Wozniak asked if there was a limit to the pipe condition in which lining would 265 work (e.g. broken, disjointed or disconnected) that determined if and when the liner tool 266 would still prove effective. 267 268 Mr. Pasko advised that the only problem was a pipe was a pipe with 50% or more 269 missing; and even then if technicians were gentle in the lining, they could still blow right 270 through that broken or missing area, essentially creating a pipe within the pipe. Mr. 271 Pasko noted that the only problematic situations he'd observed were if a pipe had been 272 crushed or offset and became oval or teardrop shaped. At that point, Mr. Pasko suggested 273 it may be better to dig and replace that spot, or in areas with a sag. Again, Mr. Pasko 274 noted the need to address that clearly in ordinance language to address rights and 275 responsibilities for laterals for homeowners and the municipalit 276 277 At the request of Chair Stenlund, Mr. Pasko estimated the typic\coeachcleanout 278 would be $1,500 to $2,500 each, and perhaps up to $3,000 for v 279 IWAI 280 Based on his experience, Member Seigler asked Mr. Pas o if those communities offering 281 a warranty program were happy with it. 282 283 Mr. Pasko opined that it varied: with older communities getting more than new 284 communities; along with some property owners pushing back or not wanting to 285 participate based on their preference for less government intervention. 286 287 Chair Stenlund asked Vtoort on the perc ntage overall in Roseville of PVC clay 288 or cast iron laterals. 289 290 Mr. a ver noted that, with the majority o e oseville sewer system installed in the 291 late 1950's, and primarily in the 1960's, most lines were clay, but he wasn't able to 292 identify how much if any were cast iron. Mr. Culver noted that, obviously, new lines 293 were of PVC construction, but those were few and far between unless in new 294 construction situations. 295 296 Mr. Pasko noted that this would fit in with most of the upper Midwest and national 297 averages, with clay popular at the turn of the century through the 1970's until use of cast 298 iron, then trending to PVC once that technology became available. 299 300 Given the age of most of the homes in Roseville, Member Seigler asked when a large 301 amount of lateral failures could be anticipated. 302 303 Mr. Pasko advised that it had a lot to do with soil type and trees in their vicinity. Based 304 on the amount of Roseville's tree cover, Mr. Pasko opined that there was probably a lot 305 of root damage that had already occurred or was occurring right now. Mr. Pasko noted 306 that the sub -grade soils around Roseville varied; and if you had heavy clay soils, any Page 7 of 20