Aquaterra was engaged by a private entity to complete an Environmental Assessment of a petrol station. Based on the results of the desktop assessment and sampling conducted at the site, it was determined that the underground tanks’ connection valves had been leaking for over 10 years and as such remediation works were required to decrease the risk of potential explosion from petroleum vapours and risks of contamination to groundwater management & resources. Remediation works included the supervision of the removal and replacement of damaged valves, excavation of impacted soils, drilling of groundwater monitoring wells to determine if groundwater has been impacted and risk assessment.
Aquaterra was commissioned by an active landfill to conduct environmental sampling of potentially contaminated soils, groundwater and air to determine the potential health risks to onsite workers and adjacent residents. The Environmental Sampling included the installation of vapour implants to monitor emissions of landfill gases such as methane, drilling of soil bores and installation of groundwater bores to evaluate the quality of the soil, groundwater and surface water from the adjacent river. All data was assessed against published guideline and criteria and a risk assessment was completed to determine relative risks.