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OR 127 Member Hammer asked what efforts are being made to rehab the plant life around 128 the ponds, in terms of filtration. 129 130 Mr. Johnson stated there is not a good echo system established. A lot of the ponds 131 were established in the fifties through seventies. From an eco -system side, it is not 132 great and one of the components the City has looked at when doing smaller project 133 restorations is to go through and use more native seeds to try to establish something 134 that has a little more benefit. 135 136 Chair Cihacek asked if the impervious surface that feeds into this pond is reduced, 137 would it benefit the capacity for this pond. 138 139 Mr. Johnson stated that was correct. Volume rate would decrease. 140 141 Vice Chair Wozniak asked if a place like Von Marr in Roseville, is the added 142 storage capacity equal to the Von Marr footprint or should the City go beyond that. 143 NW 144 Mr. Freihammer stated for example in Rice Creek Watershed, all of Rice Creek has 145 to go an additional twenty percent. 146 147 Mr. Johnson stated once a b ness its ten thous feet of impervious surface it 148 all has to get modeled to sho at least a twenty percent decrease in the rate. Just 149 because it is in the Ri e Creek Watershed District flood plain and this all drains up 150 to Jones Lake which e Watershed's primary concern once it leaves Roseville. 151 He stated the City doe a lot of im rovement; stormwater wise when there are 152 big redevelopments. 153 154rVice n continued with his presentation on Chloride and street sweeping. 155 156 Wozniak asked what percentage of the salt that Roseville uses rock salt. 157 158 Mr. Johnson Roseville uses mostly the rock salt. The City does use a lot more brine 159 and wetting the salt before putting down to try to activate it faster, so less is used. 160 161 Member Huiett asked if sand was not as effective salt. 162 163 Mr. Johnson stated sand and salt are two different processes. Salt is really good at 164 melting, getting it down to pavement and sand is good for traction. If sand is put 165 down salt is usually not put down because it's kind of defeats the purpose. 166 167 Mr. Johnson reviewed shredding day and recycling stats for 2018. He also 168 reviewed tips for residents that were in the report. 169 170 Vice Chair Wozniak asked if the tip information has ever been posted online or in 171 the newsletter for residents.