2005-10-18_REVISION - M2004078 - Laserfiche WebLink

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4.2 QualityAssurance/Quality Control and Data Validation Quality assurance /quality control (QAIQC) procedures are implemented during both field data collection and laboratory analyses. This section describes these procedures for field and laboratory investigative phases. Many aspects of field QA/OC are exercised through the use of data collection procedures in accordance with accepted standards. In addition to these field procedures, field QA/QC samples will be collected as follows: 1. Bottle/Preservation Blank - A blank sample will be prepared by the laboratory per sampling event. One bottle of each materiallpreservation combination is filled with water, transported to the site, handled like a regulady collected sample and returned unopened to the laboratory for analysis. 2. Eouioment Blanks -One equipment rinsate blank sample will be collected per day or per every 20 regular samples collected, if more than 20 samples are collected per day. An equipment blank is prepared by passing deionized water through the usual sample collection equipment, transferring it to appropriate sample containers and returning it to the laboratory for analysis. 3. Blind Duolicate Samples -One blind duplicate (split) sample will be collected per day or per every 20 regular samples collected, if more than 20 samples are collected per day. Blind duplicate samples are collected at the same location and time, but are placed indifferent bottles and labeled appropriately for separate analysis. Similar aliquots from the duplicate pair are filled inquarter-bottle increments to aid sample homogeneity. Analytical data for the surface water samples will be evaluated during this task. The data obtained during this investigation will be validated using the procedures contained in Functional Guidelines for Evaluating Inorganics Analysis (EPA, 1989) or equivalent protocol. In addition to reviewing sample holding time limits, results will be reviewed for analysis of preparation blanks and calibration blanks, duplicate samples, matrix spikes, and laboratory control standards. Those data that are identified during the validation process as being outlying observation may be re-analyzed by the laboratory. Where applicable, data that exceed acceptable control limits, as defined by the data validation protocol, will be qualified. Validated data will be incorporated into a database and used for data evaluation and report preparation. 4.3 Data Evaluation and Reporting The quarterly monitoring results will be reported in the form of: (1) an interim tabular data listing submitted for review after validation of the laboratory data; and (2) an annual data report prepared after validation of the fall event laboratory results. In the annual report, quarterly event data will be presented to: • Identify spatial and temporal trends in water quality and contaminant loading; and • Illustrate evidence of water quality changes resulting from mining activities. Following receipt of comments, a final report will be prepared and distributed. Supporting data, documentation, and feld forms will be attached as appendices to the final report. 4.4 Point of Compliance and Exceedance Response The point of compliance for water quality parameters will be the point at which the water is being pumped from the site to the proposed recharge sites. In the event that the quality of the groundwater at the point(s) of compliance exceed maximum baseline levels by twenty percent or cause an exceedance of drinking water standards, then one or all of the following mitigative measures would betaken: Step 1: Shutdown the recharge sites until further data evaluation and analysis is completed; Step 2: Provide bottled drinking water to domestic well owners potentially affected; Groundwater Sampling and Analysis Plan October 2005 Luplon Lakes Project -0-