Prices for a soil boring test typically include field drilling, sampling, and laboratory analysis. The cost of the test is driven by the number of borings, depth, soil conditions, and the required lab tests, all of which vary by project type and location.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Borehole, per hole | $600 | $1,200 | $2,500 | Depths commonly 10–30 ft |
| Labor, field crew | $600 | $1,000 | $2,000 | Typical crew of 2–3 workers |
| Sampling & lab tests | $400 | $1,000 | $3,000 | Grain size, Atterberg limits, moisture |
| Permits & fees | $0 | $200 | $1,000 | Depends on locality |
| Delivery & disposal | $50 | $150 | $500 | Soil disposal per hole |
What buyers usually pay for the exact soil boring test
Typical total price ranges from $1,200 to $6,500 per site, with an average around $2,500 to $3,500 for common residential or small commercial projects. This total reflects field borings, sample collection, and standard lab analyses. When multiple borings are required, the per-hole cost scales accordingly. Depth, soil variability, and project type largely determine the final figure.
Major cost components in a soil boring test
Pricing breaks down into field work, lab analysis, and overhead. The table below shows common cost drivers and typical ranges.
| Cost Component | Low | Average | High | Impact Factors |
|---|---|---|---|---|
| Materials | $0 | $0 | $0 | Minimal for standard sampling |
| Labor (field) | $600 | $1,000 | $2,000 | Crew size, travel time |
| Equipment | $50 | $200 | $800 | Drilling rig, augers, samples |
| Permits | $0 | $200 | $1,000 | Local regulations |
| Lab testing | $400 | $1,000 | $3,000 | Soil classification, tests required |
| Delivery/Disposal | $50 | $150 | $500 | Disposal fees per hole |
| Contingency | $0 | $150 | $600 | Unexpected sampling needs |
Variables that most influence the final quote
Two key drivers commonly shift the price: borehole depth and the number of boreholes. Deeper borings (20–40 ft vs. 5–15 ft) add equipment hours and lab capacity, while more borings increase mobilization and crew time. A second driver is the required lab suite; advanced tests such as grain-size distribution, consolidation tests, or chemical analysis raise per-hole costs by significant margins. Expect a higher average when depth exceeds 25 ft or when more than four borings are needed.
Regional price differences for soil boring tests
Prices vary by market due to labor rates, access, and disposal costs. Coastal and metropolitan regions often see higher quotes than rural areas. For a single site, per-hole pricing may be 10%–25% higher in high-cost regions and 5%–15% lower in lower-cost regions. Midwest rates often land near the national average, while West Coast projects trend higher.
Ways to reduce the soil boring test cost without sacrificing quality
Control scopes such as limiting depth to code-required levels, combining boreholes within a single drill pad, or selecting essential lab tests can trim the bottom line. Planning ahead to avoid rework and scheduling nearby projects together can lower mobilization charges. Consider substituting standard lab tests with essential tests only if the adjacent design needs permit it. Bundle tests when possible and verify the minimum data set required by the project.
Quick quotes by project scope and depth
Below are illustrative ranges for common project sizes. These examples assume standard soil and typical 2–3 day field work in moderate regions. Assumptions: Midwest labor rates, standard soils, normal access.
| Scenario | Depth | Borings | Per-Hole Price | Lab Bundle | Total Range |
|---|---|---|---|---|---|
| Residential site, 2 borings | 10–15 ft | 2 | $900–$1,400 | $500–$1,000 | $1,900–$4,000 |
| Small commercial, 4 borings | 15–25 ft | 4 | $1,000–$1,800 | $700–$1,300 | $3,000–$8,000 |
| Site with deep soils, 6 borings | 25–40 ft | 6 | $1,100–$2,000 | $1,000–$2,000 | $6,000–$12,000 |
Additional considerations for the price
Turnaround time, access constraints, and the need for backfill testing or groundwater measurements can add days and costs. If rush scheduling is requested, expect a surcharge. Maintenance or reuse of old boreholes may reduce field minutes but require extra documentation. Always verify the minimum required tests for the project type to prevent overcharges.
