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Regular City Council Meeting Monday,May 5, 2014 Page 19 was needed to make that determination. Mr. Culver opined that he would re- search that, and if not charging it, they should be. Councilmember Etten noted that cemeteries also had roads, and impervious sur- faces, and should be reviewed (e.g. major open green spaces versus others). Councilmember McGehee questioned if the City received any financial benefit from the Metropolitan Council if it reduced its overall amount of storm water. Mr. Culver responded that staff could further investigate that. Public Works Director Duane Schwartz clarified that the savings referenced by Councilmember McGehee was for water running into the sanitary sewer system (infiltration and inflow), but that in general, there was no identified credit for re- ductions in stormwater. Acting Mayor Laliberte questioned how measurements could be taken for measur- ing runoff reductions on residential properties or how they would interpret that data. Mr. Culver advised that, with the existing storm water management program, any impervious surface increase over 30% required some type of storm water BMP to contain any additional runoff from other surfaces. Mr. Culver advised that the City, and its residents worked with the Ramsey Conservation District to determine those calculations. Mr. Culver advised that many homeowners had taken the ini- tiative to build far in excess of those requirements, and should be eligible to re- ceive a credit for those efforts. At the request of Acting Mayor Laliberte regarding the definition of rain gardens (page 2 of the RCA), Mr. Culver advised that initially ditches or other natural are- as would not be considered as a rain garden, which would be addressed through the initial certification and future recertification for verification. At the request of Acting Mayor Laliberte, Mr. Culver clarified that credits would not be applicable in 2014, but would allow time for the property owners and staff to go through the process, and internal discussions on how to account credits to ensure revenue was maintained at a sustainable amount. Councilmember Willmus questioned how confident staff was that the modeling would sufficiently decrease future CIP needs going forward. Mr. Culver responded that there was no specific modeling that a per acre runoff on site would save x amount of dollars. However, Mr. Culver noted that sites would start capturing more and more water, allowing the City to spend less and less money, which would indicate the amount of reduction. As property owners were encouraged to participate, Mr. Culver opined that it was cheaper for them to