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GPS array drilling services APEX is the nationwide industry leader in establishing global positioning system monuments. During the past two years APEX through its subsidiary GPS Drilling has drilled and installed more than 100 łtripod type˛ monuments for these strategically located geodetic monitoring points. The sites have been located throughout Southern California and have required both hollowstem auger and air hammer drilling methods. This type of drilling requires extreme precision and attention to detail. APEX crews attention to installation requirements was essential in the successful completion of Phase I and II of this unique project. |
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APEX
Environmental, Inc. |