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Monthly Dry Weather Observation Form-Travis Stormwater Discharge Observation Form <br /> II®® <br /> uirements Under New IGP. .- <br /> �cont.) <br /> • Sampling: <br /> pualifying storm event-one producing discharge from at least one <br /> drainage area,and preceded by 48 hours with no discharge from <br /> any area <br /> Four QSEs must be sampled;two during first half of repporting year <br /> (Jul 1-Dec 31),and two during second half(Jan r-Jun 30);best to <br /> sample first two discharges during each period to avoid missed <br /> opportunities* <br /> Monitoring Implementation Plan(MIP;formerly Storm Water <br /> Monitoring Plan)incorporated into SWPPP <br /> Required sampling parameters include pH(field measurement), <br /> Oil&Grease,TSS,any pollutant on 303(d)list for receiving water <br /> body that could potentially be discharged,and any other pollutant <br /> of concern determined by discharger <br /> Samples must be collected within the first four hours of the start of <br /> discharge,or within four hours of facility opening and within ra <br /> hours of discharge <br /> Requirements Under New IGP Requirements Under New IGP <br /> (cont.) (cont.) <br /> •Numeric Action Levels(NALs): • Exceedance Response Actions: <br /> Results of required sampling will be compared to two If facility exceeds an annual or instantaneous NAL, <br /> types of NALs: status changes from Baseline to Level r <br /> Annual NAL exceedance occurs when the average of If facility exceeds an annual or instantaneous NAL for <br /> all analytical results for all samples collected during a the same parameter while in Level i,status changes to <br /> Level z <br /> reporting year for a given parameter exceeds annual Each level requires escalated response actions,including <br /> NAL value BMP evaluations,action plans,and technical reports <br /> Instantaneous NAL exceedance occurs if two or more pprepared by a Qualified Industrial Storm Water <br /> analytical results from samples taken for any Practrtroner(QISP) <br /> parameter during a reporting year exceed Dischargers that enter Level i status must ensure a QISP <br /> instantaneous NAL values provides adequate training to appropriate team <br /> members <br /> 65 66 <br />