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NORWEST <br /> COR PORAT ION <br /> locations where available data indicted more than three zones of flowing fractures. The <br /> wells were completed with a surface grout seal to allow the well to be a permanent <br /> monitoring well structure and monitor ground water conditions throughout the life of the <br /> quarry. The grout seal typically extends to 20 feet below the ground surface, but this <br /> depth may be less where a shallow flow zone was identified. A typical monitoring well <br /> diagram is included in Attachment D. The piezometer was completed with two vibrating <br /> wire piezometers (VWP) placed at different depths and will only be used for water level <br /> monitoring. <br /> Handheld water quality meters will be used to collect the field parameters of pH, <br /> temperature, conductivity, Oxygen Reduction Potential (ORP), and turbidity of the water. <br /> Static water level measurements will be collected during each of the monthly visits and <br /> plotted to see changes over time. Field parameters and water quality samples will be <br /> collected quarterly. Documentation during each visit will include the following, recorded <br /> in both the field book and on sample sheets: <br /> • Date and time of arrival at location <br /> • Sampler initials <br /> • Weather conditions <br /> • GPS coordinates (NAD83) and elevation(only during the initial visit) <br /> • Photo documentation(only during the initial visit) <br /> • Daily instrument calibration information <br /> • Sample collection time <br /> • Sample bottle suite collected <br /> • Field parameters (pH,temperature, conductivity, ORP, turbidity) <br /> • Description of sample (color, sediment, etc.) <br /> • Well flow rate <br /> • Well water level <br /> Other pertinent information will be recorded as needed to assist with characterizing the <br /> sampling event. <br /> 2.4.1 Groundwater Sample Collection <br /> Groundwater samples will be collected quarterly from the middle completion zone of <br /> Compliance Well #1 (LTC-GW-1) and #2 (LTC-GW-2). All other wells and zones will <br /> be sampled as needed. This will include a single baseline sample; additional samples <br /> may be collected depending on the initial results and water levels observed. Prior to <br /> TRANSIT MIX CONCRETE CO. <br /> SURFACE WATER AND GROUNDWATER MONITORING PLAN <br /> 2-7 <br />