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16 <br />(09) Hours of Operation. The landfill shall not be operated between 7:00 p.m. <br />and 6:00 a.m. The landfill may accept waste during off hours only under the <br />following circumstances: <br /> <br />(a) The wastes have been tested and approved for disposal; <br /> <br />(b) Acceptance is necessary during off hours because of extraordinary <br />circumstances; <br /> <br />(c) Each instance of off hour acceptance has received the prior <br />approval of the City Environmental Administrator and such <br />approval was granted during City business hours; and <br /> <br />(d) Each instance of off hour acceptance is documented in a letter sent <br />by the Landfill to the City Environmental Administrator within <br />five business days of the instance off hour acceptance. <br /> <br />12.) Environmental Monitoring. <br /> <br />(01) On-site Groundwater. The Licensee shall perform on-site water quality <br />testing at the monitoring wells in the manner required by the MPCA permit. The <br />wells shall meet current Department of Health Well Code Standards. The Water <br />Quality report shall be submitted to the City when it is submitted to the MPCA. <br /> <br />Groundwater levels for well P310C have consistently shown elevations <br />which are 3-5 feet higher than expected. ERL must continue to evaluate the <br />significance of elevated water levels. New monitoring well(s) may be needed in <br />the vicinity of P310C to ensure complete downgradient detection of contaminants. <br /> <br />(03) Off-Site Groundwater Quality. The Licensee shall annually sample the <br />individual private wells identified in the Sampling and Analysis Plan required by <br />Section 4 (11). Monitoring wells and piezometers shall be sampled and analyzed <br />in accordance with the Sampling and Analysis Plan. <br /> <br />(04) Lysimeters. The sampling and contingency action protocols for liner leaks <br />shall be as outlined in the Phase IV Water Quality Monitoring Work Plan, <br />revision #3 dated February 2003 as updated/revised. <br /> <br />(05) Modification. The testing programs specified in this Section 12 may be <br />modified by City staff if City staff reasonably determines there exists a need for <br />additional wells to be tested or additional parameters to be analyzed, based upon <br />water or air quality test results indicating the presence of contamination. <br /> <br />(06) Split Samples. The Licensee shall notify the City forty-eight (48) hours <br />before sampling of groundwater or surface water and allow the City at its expense <br />to obtain split samples of such waters.