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Services

Why Choose Spectrum?

  • California Professional Geophysicist on Staff
  • 8,000+ GPR studies
  • 2,400+ UST Searches
  • 10,000+ utility surveys
  • over 1/4 million borings investigated
  • 30,000+ feet seismic data collected
  • 24,000+ feet resistivity data collected
  • Surveys conducted worldwide
  • 250+ engineering firms as clients
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