2015-06-23_PWETC_AgendaPacket - Laserfiche WebLink

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P-TwR 263 Mr. Culver noted a lot of really innovative BMP's were being done, opining that 264 he'd learned an immense amount about stormwater management, and the proactive 265 innovations of the City to -date. Mr. Culver noted his interest in seeing those 266 projects, and thanked the partnership offered by area watershed districts in 267 accomplishing those efforts. 268 269 Member Heimerl asked how successful rain barrels were in stormwater 270 management, and asked if staff intended part of the education program to make 271 them more available and help the public to underst their benefits. 272 273 Mr. Johnson advised that staff s informati oo0ii0ui�linc uded all BMP options (e.g. 274 raingardens, rain barrels, porous materia lll etc.), with some requiring more 275 management as far as size and/or cost. Johnson opined that raingardens 276 provided a dual purpose, while rain barrels were only as effective as they were 277 managed and drainage of them between rain events. Fo instance, Mr. Johnson 278 noted that with rain events such as those experienced over the last few weeks, since 279 there was such significant rainfall, the barrels were not emptie" they couldn't 280 capture all the water com' off roofs. From a practical sense, Mr. son opined 281 that rain barrels work as owners efficiently use them. 282 283 Chair Stenlund opined that e pu is should still be encouraged to use rain barrels 284 to capture rainwater for secondary uses. 285 286 Mr. Johnson reviewed the pond inventory on the displayed map, noting the need 287 for follow-up and monitoring of at least 250 locations, ranging from larger to 288 smaller bodies of water, both public and private developments. Mr. Johnson 289 advised that the goal was to inspect 20% of those outfalls annually and any 290 junctions between and among other jurisdictions beyond Roseville. 291 qw 292 Mr. Johnson specifically addressed the Como Subwatershed 7 District within the 293 Roseville drainage area, and previously reviewed by the Capitol Region Watershed 294 District in 2010, identifying the need to reduce phosphorus to 6.8 lbs. per day and 295 reduce the overall annual amount. As projects came forward within that area, Mr. 296 Johnson noted the need to focus on that reduction goal. 297 11111111111 298 Mr. Johnson reviewed various drainage issues involved in just the upcoming 299 Victoria Street project. 300 301 At the request of Member Seigler, Mr. Johnson reviewed why phosphorus was bad 302 for lakes, particularly as it serves as a catalyst for many invasive weeds and algae. 303 304 Regarding the permit itself, Member Seigler asked that future annual reporting 305 include the actual cost to the City in undertaking each project to address MCM's, 306 whether required mandates or voluntary efforts, to identify the specific and total 307 amounts being expended. As a Roseville resident, Member Seigler noted his Page 7 of 18