During the past twelve years, Westhorp & Associates has performed numerous environmental audits (usually conducted upon new or renewal leases with airport tenants) as well as Phase I and Phase II environmental site assessments on behalf of the Miami-Dade County Aviation Department (MDAD) at the four County-owned airports. Our audits usually include the following activities:
- performing site visits,
- performing regulatory file reviews,
- conducting interviews with current site occupants and neighbors,
- preparing sampling plans and health and safety plans for field activities,
- coordinating with drillers, sub-consultants, and regulatory agencies
- collecting soil and groundwater samples,
- analyzing data, and
- preparing final reports in accordance with ASTM standards.
In addition, our engineers provided environmental oversight and soil classification services at several construction projects throughout Miami International Airport (MIA). Activities included onsite soil screening with a toxic vapor analyzer to offer a prompt determination of reuse suitability of the excavated soils. If the toxic vapor analyzer readings were higher than a site-specific threshold, soils were deemed suspect and were segregated and sampled for a soil reuse determination by the Miami-Dade County Department of Permitting, Environment and Regulatory Affairs (PERA, formerly known as DERM). Westhorp & Associates successfully sampled and classified over 200,000 tons of soil at MIA.
Westhorp & Associates provided environmental oversight services to the Miami-Dade Aviation Department during the $110 million construction activities for the new north runway, construction of the North Terminal, and construction of the new H-J terminal to name a few. The services provided consisted of the following:
Additional work includes oversight of the installation of soil borings and groundwater monitoring wells followed by sample collection for site contamination assessments, monitoring only plans, or no further action with/without conditions.