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preservative shall not be added in the field. All sample containers will be clearly labeled with the well <br />Identification. date and time of sample collection, parameters to be analyzed, filtered or Lill liltercd, <br />preservatives, and the samplers" initials. Samples will be kept cool from the time of collection to receipt <br />by the analytical laboratory. Chain of custody forms and custody seals provided by the laboratory \i ill be <br />used for all samples shipped to the laboratory. Samples will be stored on ice fur shipment to the <br />laboratory via express carrier. <br />1.1.6 Group 1I'at er Anuli'licul Suite <br />Groundwater will be monitored for field parameters and samples will be sent to the laboratory for analysis <br />of laboratory parameters. Parameters to be measured in the field and recorded on the field sampling <br />record will include water level, temperature, pH, electrical conductivity, and dissolved oxygen ('Fable 2). <br />Laboratory parameters for groundwater samples include 37 analytes listed in Table 3. The analytical suite <br />for the project has been developed based on Colorado agricultural 01-oundwater standards, and EPA <br />drinking water standards. The analytical suite will be reviewed annually, and may be modified to add or <br />exclude constituents, as necessary to meet the goals of the monitoring program. <br />It is anticipated that after five quarters of sampling, subsequent annual and semi - annual sampling will <br />select target analytes that represent mobile constituents that are directly related to uranium ore deposits. <br />This approach will reduce laboratory costs and still provide accurate indications of changes in water <br />quality due to mining activities. <br />Table 2: Field Parameters for Groundwater Monitoring <br />Parameter Precision /Units <br />Water Level <br />Temperature <br />pH <br />Electrical Conductivity <br />Dissolved Oxygen <br />0.01 ft <br />0.1 °C <br />0.01 s. u. <br />1 µmhos /cm <br />0.01 mg /L, 1 % <br />