CORRESPONDENCE_2005-2011 - Laserfiche WebLink

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intermittently operated facilities that are designed specifically to handle flows during wet weather conditions. The actual monthly average flow is defined as the average of the flows during each of the months that the discharge occurred during the previous five-year period. (B)Notwithstanding paragraph 1,the minimum annual fee for wet weather municipal facilities shall be $20,000. (b)(9)All other general NPDES permits and de minimis discharges that are regulated by an individual or general NPDES permit, including those issued by a Regional Board, shall pay a fee as follows, plus applicable surcharge(s): Category 1 - Discharges that require treatment systems to meet priority toxic pollutant limits and that could impair beneficial uses if limits are violated: $4,800. Category 2 - Discharges that require treatment systems to meet non-priority pollutant limits, but are not expected to impair beneficial uses if limits are violated. Examples of non-priority pollutants include, but are not limited to, nutrients, inorganic compounds, pH, and temperature: $2,900. Category 3 - Discharges that require minimal or no treatment systems to meet limits and pose no significant threat to water quality: $1,000. De minimis discharge activities include the following: aquaculture activities(as defined in Chapter 40, Section 122.25(b)of the Code of Federal Regulations)defined as managed water areas that use discharges of pollutants into that designated area for maintenance or reproduction of harvestable freshwater, estuarine, or marine plants or animals including fish hatcheries; geothermal facilities that utilize, extract, or produce energy from geothermal fluids for heating, generating power, or other beneficial uses, and discharge geothermal fluids to surface waters; aquatic pesticide applications; evaporative condensate; swimming and landscape pool drainage; discharges from fire hydrant testing or flushing; discharges resulting from construction dewatering; discharges associated with supply well installation, development, test pumping, and purging; discharges resulting from the maintenance of uncontaminated water supply wells, pipelines, tanks, etc.; discharges resulting from hydrostatic testing of water supply vessels, pipelines, tanks, etc.; discharges resulting from the disinfection of water supply pipelines, tanks, reservoirs, etc.; discharges from water supply systems resulting from system failures, pressure releases, etc.;discharges of non-contact cooling water, not including steam/electric power plants; discharges resulting from diverted stream flows; water treatment plant discharges; and other similar types of wastes that have low pollutant concentrations and are not likely to cause or have a reasonable potential to cause or contribute to an adverse impact on the beneficial uses of receiving waters yet technically must be regulated under an NPDES permit. 7