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Sampling and Analysis Plan <br />For the wells at which samples are to be collected using nitrogen lifting or micro-purging <br />techniques, the proper assembly will be installed in each monitoring well. <br />Groundwater sampling will be accomplished in accordance with the following procedures: <br />• Portable meters used to measure field parameters (pH, conductivity and temperature, <br />oxidation-reduction potential (ORP), and dissolved oxygen) will be calibrated daily prior <br />to collection of the first sample. Calibration will be performed in accordance with <br />manufacturers' specifications. <br />• The wellhead discharge piping assembly will be connected to the discharge pipe at the <br />wellhead. The total volume of water purged from the well will be measured using a <br />totalizing inline flow meter or calibrated equipment (e.g., tank or bucket). <br />• Any electrical connections will use all-weather electric cables. All electrical equipment <br />will be grounded and fit with ground fault interruption protection. <br />• If a totalizing inline flow meter is used, the initial flow meter reading will be recorded <br />prior to removing any water from the well. <br />• The submersible pumping, nitrogen lifting, or micro-purging equipment will be engaged <br />to initiate purging water from the well. If submersible pumps are used, all wells on the <br />pad undergoing sampling will be purged simultaneously, if possible. <br />• A portion of the flow from the well will be diverted through the sample port on the <br />wellhead assembly to measure field parameters. Field parameters will be measured <br />initially after the submersible pump, nitrogen lifting, or micro-purging equipment is <br />engaged and periodically as follows: <br />o Submersible pump - approximately every 30 minutes <br />o Nitrogen lift - each lift <br />o Micro-purge -approximately every 5-10 minutes <br />• Flow rate from the well will be measured from inline meter readings and/or at the end of <br />the discharge pipe or hose using a calibrated bucket and stop-watch. At a minimum, <br />measurements will be taken initially after the submersible pump, nitrogen lift, or micro- <br />purge equipment is engaged and immediately before or after sample collection. <br />• Sampling personnel will make note of the gas production at each well and monitor the <br />H2S and lower explosive limit (LEL) levels encountered during purging. <br />• An appropriate volume of water will be purged from the well before sample collection; <br />however, samples will not be collected until field parameters have generally stabilized <br />from three consecutive rounds of parameter measurements. <br />American Shale Oil, LLC 7