2018-10-22_REVISION - M2008078 (12)

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PART I Page 40 of 67 Permit No.:COG500000 ii. Benchmark monitoring(see Part 1.1.2) iii. Water quality Standards monitoring(see Part 1.1.3);and iv. Additional monitoring as required by the Division(see Part 1.1.4). b. For each type of monitoring, procedures must identify: i. Locations where samples are collected,and outfall identification by its unique identifying number; ii. Staff responsible for conducting stormwater sampling; iii. Procedures for sample collection and handling,including any deviations from sampling within the first 30 minutes of a measurable storm event; iv. For any parameters requiring analysis,the name of the parameter,the holding times and preservatives,the analytical methods used,and the laboratory quantitation levels; v. Procedures for sending samples to a laboratory,as applicable; vi. Monitoring schedules,including any deviations from the monitoring schedule for alternate monitoring periods for climates with irregular stormwater runoff(see Part I.H.S); vii. The numeric control values(benchmarks,TMDL-related requirements,or other requirements)applicable to discharges from each outfall. c. Permittees must maintain Quarterly Visual Assessment documentation (see Part 1.1.1.c)with the SWMP. d. Permittees that invoke the Monitoring Exceptions for Inactive and Unstaffed Sites and for Completed and Finally Stabilized Areas, must include in the SWMP the signed and certified documentation to support this claim. e. Permittees that use the substantially identical outfall monitoring exception (Part I.H.1)must document the following in the SWMP: i. Location of each of the substantially identical outfalls,and the outfall sampled; ii. Description of the general industrial activities conducted in the drainage area of each outfall; iii. Description of the control measures implemented in the drainage area of each outfall; iv. Description of the exposed materials located in the drainage area of each outfall that are likely to be significant contributors of pollutants to stormwater discharges; v. Impervious surfaces in the drainage area that could affect the percolation of stormwater runoff into the ground (e.g.,asphalt,crushed rock,grass,etc.); vi. Why the permittee expects the outfalls to discharge substantially identical effluents. 9. Corrective Action Documentation The permittee must maintain a copy of all Corrective Action reports that document corrective actions taken by the permittee consistent with Part LK(Corrective Actions)of this permit,with the facility SWMP. N. STORMWATER SPECIFIC REPORTING AND RECORDKEEPING — Stormwater only 1. Routine Reporting of data—DMRs In addition to the Reporting and Recordkeeping requirements provided at Part LF of this permit,the required DMR reporting conventions for stormwater discharges are as follows: a. If no discharge occurs during the reporting period,"No Discharge"shall be reported on the DMR. b. If the permittee's benchmark sampling frequency is reduced consistent with Part 1.1.2.d of this permit(Benchmark Monitoring Actions—Data not exceeding benchmarks),the permittee must submit quarterly DMRs and indicate "Benchmark Met"in the result field on the DMR for each parameter that meets the sampling frequency reduction criteria.