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Foothill Landfill Monitoring Implementation Plan MIP Page 9 3.3 Sampling and Analysis The General Permit requires the sampling and analysis of storm water from the two (2) qualifying storm events within the first half of each reporting year (July 1 - December 31), and two (2) qualifying storm events within the second half of each reporting year (January 1 - June 30). A qualifying storm event (QSE) is a precipitation event that: 1. Produces a discharge for at least one drainage area, and 2. Is preceded by 48 hours with no discharge from any drainage area. Samples must be collected from each drainage area at all drainage locations. Samples from each discharge location shall be collected within 4 hours of the start of the discharge or the start of facility operations if the QSE occurs within the previous 12-hour period (e.g., for storms with discharges that begin during the night for facilities with day-time operating hours). If there are not at least two QSEs in each half of a reporting year due to drought conditions, no non-QSEs or any other unavoidable reason according to the General Permit Fact Sheet section II.J there is no violation committed against the General Permit for not collecting two QSEs in each half of a reporting year. A justification as to why the sampling and observations were not conducted must be included in the annual report. Samples are collected using clean collection containers/devices and placed into sample containers provided by the laboratory. Section 4.0 describes, in detail, the proper sample management techniques including sample preservation, documentation, storage, transportation to the laboratory, and analytical procedures. 3.4 Annual Comprehensive Facility Compliance Evaluation General Permit requires an Annual Comprehensive Facility Compliance Evaluation (annual evaluation) be performed that includes an inspection of the facility to identify areas that discharge storm water and determine whether the BMPs are being implemented adequately and properly. The annual inspection is also intended to identify whether additional controls are needed to prevent pollution of storm water. The annual inspection is conducted within eight to sixteen months of the previous year’s inspection. However, it is recommended to complete the inspection in May of each year. The inspections include: • A review of all sampling, visual observations, and inspection records conducted during the previous reporting year. • An inspection of all areas of industrial activities and associated potential pollutants sources for evidence of, or the potential for, pollutants entering the storm water conveyance system. • An inspection of all drainage areas previously identified as having no exposure to industrial activities and materials in accordance with the definitions in section XVII of the General Permit. • An inspection of equipment needed to implement the BMPs. • An inspection of any BMPs.