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PART <br />Page 20 of 47 <br />Permit No.: CO0000213 <br />i) Roofs and associated surfaces composed of galvanized materials that may be mobilized by stormwater (e.g., <br />roofs, ducts, heating/air conditioning equipment, gutters and downspouts). <br />ii. Inventory of materials <br />The inventory shall list materials that contribute, or have the potential to contribute, pollutants to stormwater, <br />including but not limited to the following: <br />a) The types of materials handled at the facility that may be exposed to precipitation or runoff and could result in <br />stormwater pollution. <br />b) The types of materials handled at the facility that may leak or spill, and be exposed to precipitation or runoff <br />and result in stormwater pollution. <br />c) A narrative description of any potential sources of pollutants from past activities, materials and spills that <br />could contribute pollutants to stormwater discharges, and the corresponding outfall(s) that would be affected <br />by such spills and leaks. The description shall include the method and location of any on-site storage or <br />disposal; and documentation of all significant spills and leaks of oil or toxic or hazardous pollutants that <br />occurred at exposed areas, or that drained to a stormwater conveyance, in the 3 years prior to the SWMP <br />preparation date. <br />iii. Assessment of potential pollutant sources <br />The assessment of potential pollutant sources shall provide a short narrative or tabulation describing the potential of a <br />pollutant to be present in stormwater discharges for each facility activity, equipment and material identified above. <br />The permittee shall update this narrative when data become available to verify the presence or absence of these <br />pollutants. <br />e. Description of Control Measures <br />L The permittee shall document the location and type of each non-structural and structural control measure <br />implemented at the facility to achieve meet the effluent limitations contained in this permit. Documentation must <br />include those control measures implemented for stormwater run-on that commingles with any discharges covered <br />under this permit. <br />ii. Installation and implementation specifications for each control measure used by the permittee to meet the <br />effluent limitations contained in this permit must be retained with the SWMP. <br />f. Additional Control Measure Requirements: The permittee shall document the schedules, procedures, and evaluation <br />results for the following subset of practice -based effluent limitations (see EFFLUENT LIMITATIONS AND MONITORING <br />REQUIREMENTS). <br />i. Good Housekeeping — A schedule for regular pickup and disposal of waste materials, along with routine inspections <br />for leaks and conditions of drums, tanks and containers. <br />ii. Maintenance — Preventative maintenance schedules for industrial equipment and systems; control measures; and <br />any back-up practices in place should a runoff event occur while a control measure is off-line. <br />iii. Spill Prevention and Response Procedures — Procedures for preventing, responding to, and reporting spills and <br />leaks. The permittee may reference other plans (e.g., a Spill Prevention Control and Countermeasure (SPCC) plan) <br />otherwise required by a permit for the facility, provided that a copy of the other plan is kept onsite with the <br />SWMP, and made available for review consistent with SWMP Requirements. <br />iv. Employee Training — A schedule for all types of training required by this permit, content of the training, and log of <br />the dates on which specific employees received training. <br />v. Non-Stormwater Discharges — Documentation of the stormwater conveyance system evaluation for the presence <br />of non-stormwater discharges not authorized in this permit, and the elimination of all unauthorized discharges. <br />Documentation of the evaluation must include: <br />