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Windsor East Sand and Gravel Mine; Martin Marietta Materials <br />June 2022 <br /> Page 4 | 4 <br />Although this document does not provide a specific description for the use of each type of pump, the application <br />and field use of a small diameter 12v pump such as a “Whale Pump” or equivalent is as follows: <br />• Measure the overall well depth and construct the pump with supply tubing “string” accordingly, allowing extra <br />tubing length as necessary to accommodate discharge to storage and/or sampling containers. The electrical wire <br />supply line should be of adequate gauge and constructed to a length sufficient to access a nearby power source. <br />Multiple “in-line” pumps may be used in accordance with manufacturers suggested recommendations to facilitate <br />an adequate pumping rate and volume in deep wells. <br />• Lower the supply tubing with attached pump(s) in the well to the desired depth, commonly near the well bottom <br />or lower level of the screened interval. The pumping “string” can be affixed to a permanent object, typically the <br />riser protective piping, with a small clamp to keep the pumps from contacting the bottom of the well or maintain a <br />desired or prescribed sampling depth. <br />• Attached the electrical supply wires employing small clamps on the positive (+) and negative (-) battery terminal <br />in the event a standard 12v automobile battery is utilized as power source or insert the plug to the cigarette plug- <br />in if wired accordingly. There will be a short delay until the pumps engage and flow is actuated if wired correctly <br />and the power source is adequate. <br />• As water flows from the supply tubing, place the purged water into an interim storage container, commonly a <br />five-gallon bucket, for transport to a long term storage or staging area pending disposal analysis. The direct <br />discharge of purged water may be warranted based on historical site findings or client direction. <br />• Continue with the pumping/storage/disposal routine until the desired or prescribed volume of water has been <br />removed. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />\\tt.local\IER\Projects\Longmont\8741\117-8741006\Docs\DRMS\08 - Exhibit G - Water Information\Appendices\Groundwater Monitoring and Sample Collection <br />Protocols_v1.1.docx