Dense nonaqueous phase liquids (DNAPL) are a group of halogenated semi-volatiles, non-halogenated semi-volatiles, and halogenated volatiles with a greater density than water. These contaminants are found at hazardous waste sites where chlorinated solvents, wood preserving wastes, coal tars, and pesticides have been used. DNAPL are present in immiscible hydrocarbon phase and often are difficult to
read more
Light nonaqueous phase liquids (LNAPL), sometimes referred to as phase separated hydrocarbons (PSH), are hydrocarbons that have densities lower than water and don’t mix with water (i.e. think of petrol or oil floating on water). In environmental consulting, we generally come across LNAPL when it floats on the groundwater table or is sorbed into the
read more
iEnvi staff developed a commercially viable and statutory compliant solution for groundwater remediation of a coatings manufacturer site in Western Sydney, due to be completed in June 2018, including groundwater delineation, underground storage tank (UST) removal and validation, soil bioremediation, human health and environmental risk assessment (HHERA), and groundwater remediation. The client company’s commercial objectives and
read moreiEnvi has extensive experience in Australia and overseas in providing innovative and proven technologies, and tailor-made teams of remediation experts and technologies to maximise success, using a procurement model that minimises cost for: Remediation Action Plans, Long Term Environmental Management Plans. Water Treatment Solutions and Technologies. Groundwater and Soil Remediation. Landfill Remediation and Containment Design.
read more
iEnvi Principal Michael Nicholls directed and managed a soil and groundwater assessment and soil and groundwater hexcavalent chromium (Cr6+) remediation, both on and offsite, at a steel processing factory. The industrial site had operated for over 50 years and contained corroded drainage pits, corroded pipelines, leakage into stormwater drains, corroded stormwater pipes, and corroded drip
read more
iEnvironmental Principal Environmental Scientist provided environmental consulting services including removal, validation, and replacement underground petroleum storage systems (UPSS) including underground storage tanks (USTs). They used risk assessment, monitored natural attenuation and other strategies at several Council Depots in Central NSW, and remediated any associated contamination using a practical, safe and cost-effective approach. Detailed assessment and
read more