Intrusive soil and groundwater investigation to confirm or deny contamination identified in Phase I: including borehole drilling, monitoring well installation, lab analysis, and regulatory comparison.

How many boreholes are needed for a Phase II ESA?

A standard commercial lot typically requires 4–6 boreholes targeting APECs identified in the Phase I. Complex sites with multiple potential sources may need 8–12+ boreholes. Borehole count directly affects cost: we design the minimum program needed to delineate contamination.

Key Deliverables

• Phase II ESA report per CSA Z769-00 (R2022)
• Borehole logs and monitoring well construction details
• Soil and groundwater analytical results with QA/QC
• Comparison to Ontario Soil, Ground Water and Sediment Standards (Table 1/2/3/9)
• Contaminant delineation mapping

Are drilling and lab costs included in the base price?

Our base engineering fee covers work plan design, field supervision, data evaluation, and reporting. Drilling ($2,000+/day) and laboratory analysis ($500–$5,000+ per sample suite) are billed separately as pass-through costs with a 10% coordination fee.