ARCHIVED REPORTS_XR0005851 CASE 2

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IBLAINE TECH SERVICES INC SAN JOSE SACRAMENTO LOS ANGELES SAN DIEGO sample container conforms to USEPA specifications The type of sample container, material of construction, method of closure and filling requirements are specific to the Intended analysis Chemicals needed to preserve the sample material are commonly placed Inside the sample containers by the laboratory or glassware vendor prior to delivery of the bottle to our personnel The laboratory sets the number of replicate containers STORAGE All sample containers are promptly placed in food grade Ice chests for storage In the field and transport (direct or via our facility) to the analytical laboratory that will perform the Intended analytical procedures Ice chests are filled with restaurant grade ice so that a temperature of 4 degree Celsius can be maintained LABELING Each and every sample container has a label affixed to It In most cases these labels are generated by office personnel and are partially preprinted Labels can also be handwritten I by field personnel The site is Identified with the store number and site address, as is the particular groundwater well from which the sample Is drawn (e g MW-1, MW-2, S-1 etc ) The time of sample collection and the samplers' initials are handwritten onto the label Sampling date and time, analysis suite and laboratory name are recorded on the ARCO/BP Well Monitonng Data sheet Chain of Custody records are created using client specific preprinted ' forms following USEPA specifications 11 DECONTAMINATION lie All equipment is brought to the site In serviceable condition and is cleaned thoroughly before Initial use and before subsequent use in any other well Equipment Is decontaminated before ' leaving the site The primary decontamination device Is a commercial steam cleaner The steam cleaner Is de- tuned to function as a hot pressure washer that is then operated with high quality delonized water that is produced at our facility and stored onboard our sampling vehicle Cleaning Is facilitated by the use of proprietary fixtures and devices Included in the patented workstation ' (U S Patent 5,535,775) that Is Incorporated In each sampling vehicle The steam cleaner is used to decon reels, pumps and bailers ' Any sensitive equipment or parts (I a Dissolved Oxygen sensor membrane, sounder, etc ) that cannot be washed using the hot high-pressure water will be decontaminated with a moist sponge, Llquinox and rinsed with DI water from a spray bottle ' EXAMPLE The water level Indicator is cleaned between wells using a sponge and a non- phosphate soap/deionized water solution followed by deionized water rinses The water level Indicator is then washed with the steam cleaner between sites or as necessitated by use in a ' particularly contaminated well ' 12. PURGEWATER ' STANDARD OPERATING PROCEDURES-BP/ARCO NORTHERN CALIFORNIA Page 6 1