2014_0505_CCpacket - Laserfiche WebLink

Home

Department Approval �-�- Item Description: BACKGROUND �� ti � REQUEST FOR COUNCIL ACTION Date: OS/OS/14 Item No.: 13.c City Manager Approval ��.-��j4.�- Approve Storm Water Credit Program for Properties Exceeding Required Storm Water Requirements The purpose of the Storm Water Credit Program is to encourage city property owners to manage rainwater in ways that help deal with problems arising from storm water runoff in an urban environment. In Roseville, the large amount of impervious surfaces such as asphalt, concrete, roofs, sidewalks, etc., stop starm water from naturally absorbing into the ground. The runoff from these areas transports pollutants like phosphorus, nitrogen, heavy metals, petrochemicals, fertilizer, pet waste and other common chemicals to receiving bodies of water and is a major source of water pollution in urban areas. In an urban environment, the amount of impervious area on a property is the most significant factor affecting the quality and quantity of storm water runoff. By using storm water Best Management Practices (BMPs) property owners can partially duplicate the effect of the open areas and wetlands that provided natural drainage prior to urbanization. The program establishes separate criteria and credit amounts for CommerciaUIndustrial Properties and Residential properties. The City's storm water utility rates are charged either by acre or by lot. Single Family Residential and Duplex properties are charged by the lot and all other uses are charged by the acre. The table below shows the current storm water utility quarterly rates: 2014 Quarterly Storm Water Base Rate Cate o Unit Rate Sin le-Famil Residential & Du lex LOT $11.70 Multi-Famil & Churches ACRE 90.50 Cemeteries & Golf Courses ACRE 9.10 Parks ACRE 2720 Schools & Communi Centers ACRE 4530 Commercial & Industrial ACRE 181.10 � For Acre based uses, credits are based on the targeted rainfall volumes that can be kept on site. The �� proposed credit will be based on capturing a 10 year (42") or 100 year (7.4") Type II rain event from 6 the desired drainage area. Only the drainage area that is treated will be eligible for credit. This program F does not provide credits for practices that are required by a permit or to meet minimum requirements for ti a land use approval. Practices that go above and beyond the permit are eligible for storm water credits. Property owners that receive cost share funding from a watershed district, state agency, etc., are still eligible for the storm water credit program. Page 1 of 3