Gregg Drilling & Testing Inc

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Gregg Drilling & Testing specializes in environmental, geotechnical and marine drilling and testing services. The company performs a wide range of cone penetration testing operations, site investigations and remediation activities. Its capabilities include soil sampling, groundwater sample collection, continuous coring, offshore liquefaction services, seismic analysis, mud rotary drilling and inclinometer installation. Gregg Drilling & Testing features expertise in vapor extraction, aquifer testing, hydraulic fracturing and well development, purging, sampling and rehabilitation. The company also engages in direct push and limited access applications. It serves clients in the onshore and offshore markets. Gregg Drilling & Testing was formed in 1985 and is headquartered in Signal Hill, Calif. The company is affiliated with Gregg In Situ.