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CAMBRIA purging, it shall be decontaminated before purging each well by using soapy water consisting of Liqui-rli or Alconox fm followed by one rinse of clean tap water and then two rinses of distilled water If a submersible pump with non-dedicated discharge tubing is used for groundwater purging, both the inside and outside of pump and discharge tubing shall be decontaminated as described above Sample Handling Except for samples that will be tested in the field, or that require special handling or preservation, samples shall be stored in coolers chilled to 4° C for shipment to the analytical laboratory Samples shall be labeled, placed in protective foam sleeves or bubble wrap as needed, stored on crushed ice at or below 4° C, and submitted under chain-of-custody {COC} to the laboratory The laboratory shall be notified of the sample shipment schedule and arrival time Samples shall be shipped to the laboratory within a time frame to allow for extraction and analysis to be performed within the standard sample holding times Sample libels shall be filled alt using indelible ink and must contain the site name, field identification number, the date, time, and location of sample collection, notation of the type of sample, identification of preservatives used, remarks, and the signature of the sampler Field identification must be sufficient to allow easy cross-reference with the field datasheet All samples submitted to the laboratory shall be accompanied by a COC record to ensure adequate documentation A copy of the COC shall be retained in the project file Information on the COC shall consist of the project name and number, project location, sample numbers, • sampler/recorder's signature, date and time of collection of each sample, sample type, analyses requested, name of person receiving the sample, and date of receipt of sample Laboratory-supplied trip blanks shall accompany the samples and be analyzed to check for cross- contamination, if requested by the project manager Waste Handling and Disposal Groundwater extracted during sampling shall be stored onsite in sealed U S DOT H17 55-gallon drums and shall be labeled with the contents, date of generation, generator identification, and consultant contact Extracted groundwater may be disposed offsite by a licensed waste handler or may be treated and discharged via an operating onsite groundwater extraction/treatment system H\ MGT IR Group lnfdSOPs\Groundwater Monitoring and Sampling SOP 07 2005 doc Page 2 of 2 I i