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wood. <br /> and purging will continue until at least three consecutive readings meet the following stability <br /> criteria: <br /> • Temperature: ±5 % <br /> • Electrical conductivity: ±3% <br /> • pH: ±0.1 <br /> • Turbidity: ±10 % or less than 10 NTU <br /> Samples will be collected either once the stability criteria have been met, it is clear the stability <br /> criteria will not be met in a reasonable timeframe, or groundwater recharge is insufficient to <br /> allow for purging prior to sampling. <br /> All groundwater sample containers will be labeled, sealed in plastic bags, and stored in an ice- <br /> cooled chest for transportation to a California-certified analytical laboratory under COC <br /> procedures. <br /> A.3.0 REFERENCES <br /> Department of Water Resources, 1991. California Well Standards, Bulletin 74-90.June. <br /> https://woodplc.sharepoint.com/teams/OlinTracy/Shared Documents/General/03.0 Do Ctrl/2022 Decomm WP/Revised A-3 <br /> Decomm WP/04_Appendices/App A_methods.docx <br />