6.2 SR 10-03-2022 - Laserfiche WebLink

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collection system, monitoring systems, access roads, fencing, etc. The extent of any damage will be described in detailed inspection notes and photographed. Following the inspection, a brief report will be prepared by the operator's technical staff describing the emergency and effects of damage, if any, on the intended purposes of the engineering features of the facility. The report will also identify repair procedures that will restore the features to their intended function. The inspection report and proposed repair schedule will be submitted to the MPCA on a schedule agreed to by all parties. 4.3.3 EVENTS NOT REQUIRING EMERGENCY ACTION Inspection -triggered and monitoring -triggered contingencies such as small cracks in embankments or the cover, a gradual embankment or cover movement trend, cover settlement, leachate seeps, minor erosion, leachate head buildup, detects in leachate leak detection devices, surface drainage problems and water quality violations generally will not require an emergency response. These contingencies, however, may require interim response actions, continued or enhanced monitoring, assessment of the extent of the problem, and/or evaluation of the design prior to implementation of repairs or remedial actions. Action for inspection- and monitoring -triggered contingencies is summarized in Tables 4B and 4C, respectively. 4.3.3.1 Water Quality The following discussion describes the general procedures to follow for actions related to water quality problems. The procedure is divided into two steps. The first is verification of the problem. The second is the response to employ if the first step is indicative of a problem. Each problem has a number of possible solutions and no contingency plan of action can directly address all circumstances encountered. Therefore, this plan is conceptual and flexible, to be used as a preliminary guide by all those associated with the project. The initial steps identified here will help define the plan of action to be followed for specific contingency occurrences. • If a water quality action level defined by the current permitting document is exceeded, notify the MPCA in writing. • Check all sampling, sample handling and analytical procedures to verify that proper techniques were used. • Determine the potential implications of the elevated parameters, by examining background and historical data, reviewing regional and time variations in water quality and determining if all monitoring points are showing elevated levels or if the occurrence is localized. • If necessary, resample to verify results. • If similar results are found from resampling, evaluate the results for potential impact to human health and the environment. • Based on the significance of the results, determine if immediate action is needed or if continued or expanded monitoring is sufficient. Expanded monitoring may include increasing the frequency of sampling. • Meet with the MPCA staff to determine the need to implement assessment monitoring to comply with requirements for disposal sites. • Determine, if possible, the source of the problem. During the time period covering the above actions, routine water monitoring will also continue according to the regular schedule. MProject Number: 227705133 4.4