ARCHIVED REPORTS_XR0006022 - Laserfiche WebLink

Home Browse Search

CAM BRIA decontaminated before purging each well by using soapy water consisting of Llqui-noxTM or AlconoxTM 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 cham-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 labels shall be filled out 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 One copy of the COC shall be kept in the QA/QC file and another copy 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 Well Development Wells shall be developed using a combination of groundwater surging and extraction A surge block shall be used to swab the well and agitate the groundwater in order to dislodge any fine sediment from the sand pack After approximately ten minutes of swabbing the well, groundwater shall be extracted from the well using a bailer, pump and/or reverse air-lifting through a pipe to remove the sediments from the well Alternating surging and extraction shall continue until the sediment volume in the groundwater (i e turbidity) is negligible, which typically requires extraction of approximately ten well-casing volumes of groundwater Preliminary well development usually is performed during well installation prior to placing the sanitary surface seal to ensure sand pack stabilization Well development that is performed after surface seal installation, should occur 72 hours after seal installation to ensure that the cement has had adequate time to set Waste Handling and Disposal Groundwater extracted during development and sampling shall be stored onsite in sealed U S DOT H17 55-gallon drums Each drum shall be labeled with the contents, date of generation, generator identification and consultant contact H 1 MGT IR Group Info\Report SONNGroundwater MOMWTIng and sampling SOP rtf Page 2 of 2