Hard Rock Drilling

Yes, generally. Hard rock formations take more time per foot to drill and require specialized drill bits. Combined with the greater depth uncertainty that hard rock conditions can create, projects in basalt or granite zones tend to carry higher cost ranges in a worst-case scenario bid. Trident Drilling factors formation type into all cost estimates.

Water from hard rock (fractured rock) wells can be safe and clean, but it should always be tested before consumption. Rock fractures can sometimes contain elevated levels of naturally occurring minerals. A standard water quality test will identify any parameters of concern for your specific site.

Your driller can review available geological survey data and IDWR lithology logs from neighboring wells to determine the likely formation type at your site. Properties at higher elevations in Northern Idaho and those outside the Rathdrum Prairie Aquifer basin are more likely to encounter hard rock conditions. Trident Drilling assesses this as part of the site evaluation process.