GROUNDWATER SAMPLING SOP - US EPA
GROUNDWATER SAMPLING SOPContact tribal member requesting Groundwater (GW) sampling and request the following information: type of well (hand dug, drilled, community, etc. Were odors detected coming from the well or cistern.Note: Before sampling make sure you have all of the equipment listed below to complete groundwater sampling. 5 gallon bucket or smaller with sterile 15 ft. sampling hose (for methane sampling).(3) sterile 40 ml clear ESS VOA vials, with Teflon septa for methane sampling.(1) 100 ml container for sulfide sampling (contains ZnAc).(1) 100 ml container for nutrient sampling (contains sulfuric acid).(1) 175 ml container for general sampling (no preservative).(1) 250 ml container for metals sampling (contains nitric acid).(1) 100 ml container for bacteriology sampling (contains preservative).Use either the 6820 or 6820 V2 Sonde to measure field parameters (DO, pH, Temperature, TDS, conductivity, turbidity). Store all of the collected water samples on ice and send and/or deliver them to the appropriate lab for analysis.All samples should be taken directly from the cistern if available. If the cistern is not available the bacteriology sample must be taken from a faucet inside the house. The remaining samples may be taken inside or outside the house. ................
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