Drilling Drain Wells
Jason Damm • September 1, 2025
Drain Well Drilling Services in Central California

In this project, our crew drilled a vertical drain well as part of a custom drainage system in Coalinga, California. Drain wells — sometimes called seepage pits or dry wells — are deep boreholes designed to manage stormwater runoff or septic outflow in areas where space or soil conditions limit the use of traditional leach fields.
Big Bore Drilling offers licensed drain well drilling throughout Fresno, Madera, Kings, and San Joaquin Counties. We use large-diameter drilling methods and Vac-Con support when needed to ensure code-compliant, long-lasting drainage solutions.