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containers at the base of the bailer via a Teflon check valve and nipple. Prior to initial use, <br /> the bailer was disassembled, washed in a mixture of Liqui-Nox and clear water, rinsed in clear <br /> water, rinsed in distilled water, rinsed in deionized water, allowed to air dry, and reassembled. <br /> At the groundwater quality monitoring well, a clean, unused bailer line was utilized to lower <br /> and raise the bailer. <br /> Following transference, each sample container was labeled, logged on a chain-of-custody <br /> _ form, and placed in an ice chest to be kept at 4'C during transport to AEMCs' State of <br /> California certified analytical laboratory. Appendix C contains the laboratory analytical <br /> results. <br /> PROPOSED QUARTERLY GROUNDWATER QUALITY SAMPLING TO COMPLY WITH <br /> VARIANCE <br /> For the purpose of granting a site specific variance to vadose zone monitoring requirements as <br /> outlined in California Administrative Code Title 23, Chapter 3, Subchapter 16, Article 4, <br /> Section 2641, "Monitoring Alternatives", Alternative Number 2, AEMC proposes the <br /> following quarterly groundwater quality monitoring plan. <br /> Sampling Plan <br /> Groundwater samples will be collected on a quarterly basis (every three months) from the <br /> four monitoring wells located in the vicinity of the 5,500 barrel No. 6 fuel tank at the Newark <br /> Sierra Paperboard site. <br /> Prior to collecting any groundwater samples, the potentiometric surface elevation in the <br /> groundwater quality monitoring wells will be measured. The groundwater quality monitoring <br /> wells will then be purged of stagnant groundwater utilizing a decontaminated acrylic bailer. <br /> _ Prior to initial use the acrylic bailer will be disassembled, washed in a mixture of Liqui-Nox <br /> and clear water, rinsed in clear water, rinsed in distilled water, rinsed in deionized water, <br /> n�,00q�z-z� Page 5 <br />