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412 <br />413 <br />414 <br />415 <br />416 <br />417 <br />418 <br />419 <br />420 <br />421 <br />422 <br />423 <br />424 <br />425 <br />426 <br />427 <br />428 <br />429 <br />430 <br />431 <br />432 <br />433 <br />434 <br />435 <br />436 <br />437 <br />438 <br />439 <br />440 <br />441 <br />442 <br />443 <br />444 <br />445 <br />446 <br />447 <br />448 <br />449 <br />450 <br />451 <br />452 <br />453 <br />454 <br />455 <br />456 <br />457 <br />Roseville PWET Commission Meeting Minutes <br />Page 10, January 24, 2017 <br />Johnson advised that in developments or improvements of over one acre, the <br />strictest requirements would supercede those less stringent, but that the goal was <br />to bring them into consistency. <br />Mr. Culver noted the variables depending on the specific area or section, but <br />clarified that an improvement must ultimately meet both city and watershed <br />district requirements, whether or not they were currently at different thresholds. <br />Mr. Culver advised that there was no statute or law that one trumped the other, <br />but both needed to be met, and the goal was to have a policy in place that didn't <br />overly burden property owners and/or developers, but sti achieved adequate or <br />improved stormwater management standards. Mr. Cu ified that from his <br />perspective, the city should be consistent with w shed district rules when <br />reaching their threshold. <br />Member Wozniak noted that in some in <br />Mr. Freihammer confirmed that the city <br />a disturbed area, but noted that the city's <br />Freihammer noted the area r discussi� <br />pavement was removed, but t remz <br />quality treatment and rate contr <br />grading but didn't disturb native ils <br />stuck with its current rules, Mr. ih <br />clarified as �Jooth%athol <br />or revis he <br />accordinglyd. <br />ct seemed less <br />essive as to Palt triggered <br />was up in the air now. Mr. <br />to include if and when all <br />did that trigger city water <br />iggered if you did light <br />district rules. If the city <br />hat they either needed to be <br />ershed district requirements <br />-INM <br />r. Jo son displayed an illustration showing <br />where current city and watershed district <br />point needing clarification based on PWETC feedback <br />Ntarea <br />is j undefourteen square miles in area, Mr. Johnson noted that <br />ea th were 127 miles of storm water. At the time of original <br />r a or portion of that storm sewer infrastructure, Mr. Johnson <br />een undersized and therefore in today's world, couldn't more <br />e systems efficiently. Mr. Johnson reviewed examples of local <br />es throughout the community and current design standards for 10% <br />probability storms (10 year, 4.2 inches within 24 hours). While having <br />consistently chipped away at those most problematic flooding areas as projects, <br />time and funding were available, Mr. Johnson noted that there remained large <br />gaps in improving overall stormwater management in the community. <br />At the request of Chair Cihacek, Mr. Johnson reviewed average costs for <br />replacing stormwater systems, typically at $25 to $30 per foot for a 12 inch pipe, <br />with larger diameter pipes costing more, at the current rate of replacement on an <br />