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concentrations of PFCs have been shown to have adverse health effects but he effects in humans are still unclear. • Endocrine disrupting compounds (EDCs). EDCs are not a discrete class of chemicals but rather a chemical which mimics or blocks normal hormonal function in animals and humans (a process called endocrine disruption). In animals, exposure to EDCs has been associated with reduced reproductive success, reduced survival, altered sex typing, and developmental abnorrnalities. Potential EDCs include chemicals such as PCBs, polybrominated biphenyls (PBBs), bisphenol A (BPA), phthalates, and many others found in a range of products from pharmaceuticals and personal care products to pesticides. Many of the pollutants listed above are either already in the environment (e.g. PCBs, PFCs) or are found in many commonly used products (e.g. Chloride, PAHs, EDCs) and are difficult to remove from the aquatic environment once introduced with traditional treatment methods. To avoid potentially expensive remediation/treatment costs associated with many of these substances, the City will need to take a proactive approach with preventing /reducing the use of such substances through considerable educational efforts and public policies. Examples of efforts the City has already made towards pollution prevention include reducing road salt usage and prohibiting the use of coal -tar based sealers. The City also has an illicit discharge ordinance which prohibits illicit discharge of non - stormwater into the storm sewer system and intentionally disposing of grass, leaves, dirt, or landscape material into a water resource, natural conveyance, or street/road/alley. Complementing pollution prevention is performing routine maintenance of existing stormwater treatment and drainage systems. As sediment builds up over time, it reduces the capacity of drainage systems and the pollutant removal capabilities of ponds by reducing dead storage volume (i.e., the volume below the outlet elevation). Sediment from erosion can also significantly reduce infiltration rates in basins or BMPs designed for volume control and/or groundwater recharge. Extending the life of these facilities involves source control and elimination of material that causes the problem, and maintenance of the systems on a regular basis. Better construction methods and maintenance efforts will control a major portion of the sediment at the source, and an effective street sweeping program will also have a positive impact. Table 11 Goal 5 — Pollution Prevention and Maintenance .. Policy No. pollution .... housekeeping . Goal 5: Pollution Prevention and Maintenance — Policies 1 The City encourages residents to take advantage of the free Ramsey County yard waste collection sites, Roseville Leaf Recycling Center or backyard composting to prevent these potential sources of TSS and nutrients from reaching the storm sewer system and downstream receiving water bodies. 2 The City encourages residents to properly dispose of household hazardous waste (cleaning products, automotive fluids, lawn and garden chemicals, ect.) at a Ramsey County collection site to prevent these potential sources of ollutants from reaching the storm sewers stem and downstream receiving Comprehensive Surface Water Management Plan ROSEV120222 City of Roseville Page 23