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<br />Appendix Page 3 of 3 - Revision 2/2021 <br />Examples of comingled discharges considered to be process water under the renewal permit: <br />o Stormwater runoff from mine haul roads that is directed to and discharges from the mine pit. The <br />resulting discharge is considered process water; <br />o Stormwater runoff from construction activities at the mine facility that is directed to and discharges <br />from the mine pit. The resulting discharge is considered process water, and the activity does not <br />require separate construction stormwater permit coverage even if the disturbed area exceeds the one <br />acre threshold; <br />o Stormwater runoff from asphalt or concrete batch plants that is directed to and discharges from the <br />mine pit. The resulting discharge is considered process water. <br />o Stormwater runoff from mine areas that commingles with product wash water prior to discharge. <br /> <br />5. Discharge type: Indicate the discharge type (for example pumped or passive pit dewatering; other process water <br />discharge (such as product wash water); detained stormwater (such as detention or sediment ponds); stormwater <br />sheet flow; etc. <br /> <br />6. 7. & 8. Flow: For all process water outfalls, indicate: <br /> <br /> whether the discharge is measured continuously or instantaneously, <br /> the specific flow rate method the permittee uses (v-notch weir, pump capacity, parshall flume, etc.), and <br /> the average flow rate in million gallons per day (MGD). <br /> <br />Note: the division will apply the flow rate provided in this application supplement as a 30-average flow limit in the <br />facility certification. <br /> <br />9. Chemicals: Identify all chemicals used in industrial activities at the facility that have the potential to be present in <br />the discharge. Chemicals in this context include, but are not limited to, chemical used at any point in the <br />treatment process, release agents, etc. If the facility does not use chemicals, please indicate ‘NA’ in the table. <br /> <br />10. Pit distance to receiving water: As applicable to the facility, provide the distance from the pit to the immediate <br />receiving water. If the facility does not have a pit, please indicate ‘NA’ in the table. <br /> <br />11. & 12. Receiving water: Receiving waters include lakes, ponds, rivers and streams (perennial, intermittent or <br />ephemeral), drainages, irrigation ditches, wetlands, etc. Identify the immediate and ultimate receiving water of <br />the discharges from all outfalls for the facility (immediate receiving waters are those that the facility discharges <br />directly to; the ultimate receiving waters are those directly downgradient of the immediate waters). <br />