Environmental Drilling & Sampling Services

29+ years of experience in environmental drilling services

Environmental Control Associate, INC

Drilling Services in Northern California & Western Nevada

ECA, based in Santa Cruz, California, has specialized in Environmental Drilling and Direct Push Sampling services since 1991. Serving in Northern California and Western Nevada, our team offers you custom solutions for all your drilling needs.

Our team is dedicated to completing your environmental drilling project on time, safely, and within your budget.

Why Choose Us

  • We are a fully-insured C-57 Drilling Contractor, California License #695970.
  • We operate a variety of Geoprobe® trucks and limited access rigs.
  • We have over 29 years of experience.
  • Our operators have many years of experience and personally maintain certain rigs and equipment.
  • Available to mobilize quickly for urgent project schedules.


  • Groundwater.
  • Soil.
  • Temporary monitoring well installation.
  • Gas sampling.
  • ORC® and HRC® injection.

Geoprobe Drilling Models

  • 6610
  • 7822
  • 6600
  • 5410
  • 54LT (limited access).
  • 420M (limited access).