Laserfiche WebLink
ATC Associates Inc <br /> Quality AsmwancelQuahty Control Plan <br /> Revised 1998 <br /> or frozen chemical ice for delivery to a state certified laboratory Sample identification, storage <br /> and transportation will be conducted as outlined in the previous section <br /> 11.3 Sampling from Soil Piles or Shallow Soil Pits <br /> Soil samples will be collected and transported from excavated material in the manner described <br /> in the previous section, however, a backhoe will not be utilized If composite samples are <br /> collected, four brass cylinders will be collected for every 50 cubic yards of material to be <br /> sampled unless otherwise specified by the lead regulatory agency The samples will be <br /> composited by the state certified laboratory personnel prior to testing <br /> 12.0 GROUNDWATER SAMPLING PROTOCOL <br /> Prior to arriving at the sampling site, all sampling equipment will be washed with nonphosphate <br /> detergent (Alconox or equivalent), and rinsed twice with tap water, once with acetone, and once with <br /> deionized water this procedure will be carried out on-site before sampling of other monitoring wells, if <br /> more than one well is to be sampled with the sample sampling device <br /> Immediately prior to sampling, the depth to water(DTV) in the well will be recorded The thickness <br /> of product on top of the groundwater, if present, will be measured using an interface probe The <br /> procedure for monitoring is presented in Section 9 0 (Groundwater Monitoring Protocol) <br /> If free product is detected, analysis of groundwater at the interface for dissolved product will not be <br /> conducted A product sample will be collected for source identification If all free product cannot be <br /> removed, an interval specific sampling device may be utilized to collect a sample from below the zone <br /> of free product Before collecting groundwater samples from each well, the well will be purged until <br /> indicator parameters (temperature, conductivity, and pH) stabilize This will entail the removal of at <br /> least four well casing volumes by banking or pumping The criteria for determining well casing volumes <br />