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(O1) 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 Standazds. The Water <br />Quality report shall be submitted to the City when it is submitted to the MPCA. <br />Groundwater levels for well P310C have consistently shown elevations <br />which are 3-5 feet higher than expected. The groundwater flow interpretations <br />show radial flow from the well. The groundwater flow interpretation indicates <br />ongoing anomalous water level conditions at P310C. This implies a localized <br />radial flow or perched groundwater condition and the well screen is not <br />intercepting groundwater which is downgradient from the waste fill area. Given <br />the current water level data and groundwater flow interpretation, this well cannot <br />function as a downgradient compliance point. ERL must rehabilitate well P310C <br />or replace it with a suitable downgradient monitoring point in this vicinity. <br />(02) Surface Water Quality. The Licensee shall have surface water quality tests <br />performed in conjunction with sampling quarterly events when water is present. <br />(03) Off-Site Groundwater Oualitv. The Licensee shall annually sample the <br />individual private wells identified in the Phase IV Water Quality Monitoring <br />Work Plan required by Section 4(05). <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 />(OS) 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 pazameters to be analyzed, based upon <br />water or air quality test results indicating the presence of contamination. <br />(06) Split Samples. The Licensee shall notify the City forty-eight (48) hours <br />before any sampling of groundwater or surface water and allow the City at its <br />expense to obtain split samples of such waters. <br />13.) HvdroQeoloeic Investigation. The investigation of the hydrological and <br />geophysical characteristics of the site shall be continued and any other new <br />information relating to the hydrogeologic impact of the site shall be reported to <br />the City. Hydrogeologic reports shall be updated, amended, and modified as <br />warranted by newly discovered or additional data acquired in the continued <br />hydrogeologic investigation. Licensee shall notify City at least two (2) days in <br />advance of any soil boring or well construction required by this License. <br />ERL has concluded that P304C area impacts aze the result of landfill gas <br />effects. This situation is similaz to P-320 azea where contaminants are observed <br />17 <br />