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Work Instruction Number: AMS-830-19-WI-03103 <br /> AAPTIM Revision: 0 Approval Date: 8/13/2021 <br /> DIRECT PUSH GROUNDWATER SAMPLING <br /> ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ <br /> Hydropunch® I and II are registered products of QED <br /> Environmental Systems, Inc. (www.qedenv.com). The term <br /> hydropunch is informally used to refer to any short to medium- <br /> length small-diameter, protected well screen system that is <br /> Hydropunch driven (pushed)to depth and then exposed to soil material and <br /> pore fluids by retraction of a protective sleeve, without regard to <br /> manufacturer, trademark, or registered name. The Hydropunch® <br /> I and Hydropunch® II systems are considered suitable for use <br /> by this Work Instruction. <br /> ...............................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> A filtering device that is designed to retain soil, earthen material, <br /> Well Screen or artificial sand pack on one side (outside) and permit the flow <br /> of water or other subsurface fluid into a void space on the other <br /> side (inside). A well screen is nearly always rigid and cylindrical. <br /> ...............................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> A well screen that is encased within another material or system <br /> as it is emplaced and becomes exposed to soil materials and <br /> pore fluids only when a target depth has been reached and the <br /> Protected Screen protective device has been retracted or removed. The <br /> Hydropunch®and Geoprobe®Screen Point systems utilize <br /> protective covers, which are left in place until the target depth <br /> has been reached, and are then lifted upward, exposing the well <br /> screen to adjacent soil material and pore fluids. <br /> ...............................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> A well screen that is in contact at all times during use with soil <br /> Unprotected Screen materials and pore fluids. The most common unprotected screen <br /> is a driven well point. <br /> ................................................................................................................................................................................i...................................._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._...._.................................... <br /> 5.0 REFERENCES <br /> 5.1 Required Forms/Checklists <br /> None <br /> ................................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> 5.2 Other Internal References <br /> ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ <br /> AMS-830-19-PR-31201 Groundwater Sampling in Support of Environmental <br /> Investigation and Remediation <br /> ...............................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> AMS-710-02-PR-01610 Utility Contact Prevention <br /> ...............................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> AMS-710-02-PR-07200 Drill Rig Operations <br /> ................................................................................................................................................................................:........................................................................................................................................................................................................................................................................................................ <br /> 5.3 Other External References <br /> The most current versions of the following references are useful for planning and implementing <br /> direct push groundwater sampling activities: <br /> ASTM D 6001 Standard Guide for Direct-Push Water Sampling for Geo-environmental Investigations <br /> ASTM D 5730 Guide to Site Characterization for Environmental Purposes with Emphasis on Soil, <br /> Rock, the Vadose Zone, and Ground Water <br /> UNCONTROLLED COPY IF PRINTED Page 3 of 6 <br />