(A) It is recognized that developed areas, as compared to undeveloped areas, generally have increased imperviousness, decreased infiltration rates, increased runoff rates, and increased concentrations of pollutants such as fertilizers, herbicides, greases, oil, salts and other pollutants. As new development and re-development continues in the city measures must be taken to intercept and filter pollutants from stormwater runoff prior to reaching regional creeks, streams, and rivers in order to preserve fishable and swimmable conditions. Through the use of Best Management Practices (BMPs), stormwater runoff will be filtered and harmful amounts of sediment, nutrients and contaminants will be removed. The city has adopted a policy that the control of stormwater quality will be based on the management of Total Suspended Solids (TSS).
(B) The project site owner must submit to the city, a Stormwater Pollution Prevention Plan (SWPPP) that would show placement of appropriate BMP(s) from a pre-approved list of BMPs specified in the city's Stormwater Technical Standards Manual or the Indiana Stormwater Quality Manual. The noted BMPs must be designed, constructed, and maintained according to guidelines provided or referenced in the city's Stormwater Technical Standards Manual or the Indiana Stormwater Quality Manual. Practices other than those specified in the pre-approved list may be utilized. However, the burden of proof, as to whether the performance (minimum 80% TSS removal) and ease of maintenance of such practices will be according to guidelines provided in the city's Stormwater Technical Standards Manual or the Indiana Stormwater Quality Manual, would be placed with the applicant.
(C) Gasoline outlets and refueling areas must install appropriate practices to reduce lead, copper, zinc, and polyaromatic hydrocarbons in stormwater runoff. These requirements will apply to all new facilities and existing facilities that replace their tanks.
(Ord. 7-2006, passed 6-12-06)