Soil and groundwater remediation using risk based corrective action: case study
Around the world, there are numerous sites that have contaminated soil and groundwater from gas station operations. The contamination concentration levels found in these sites range from high to low and are caused by various scenarios such as leaks/punctures in underground storage tanks, overfilling...
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| Format: | Thesis |
| Language: | English |
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Memorial University of Newfoundland
2020
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| Online Access: | https://research.library.mun.ca/14468/ https://research.library.mun.ca/14468/1/thesis.pdf |
| Summary: | Around the world, there are numerous sites that have contaminated soil and groundwater from gas station operations. The contamination concentration levels found in these sites range from high to low and are caused by various scenarios such as leaks/punctures in underground storage tanks, overfilling of storage tanks, and accidental spills, etc. The main contaminants found from these sites are predominantly total petroleum hydrocarbons (TPH), in which the main chemical constituents are benzene, toluene, ethylbenzene, and mixed xylenes (BTEX) that are known to have health and environmental effects. This study creates a fictional scenario where a gas station located in Happy Valley – Goose Bay, NL has released a large volume of TPH contamination into the soil and groundwater in and around surrounding areas. The use of „Risk Based Corrective Action‟ (RBCA) utilizes a tiered based consistent decision making methodology to aid in the overall optimal selection of soil and groundwater remediation technologies of soil vapour extraction and air sparging. These technologies combined together will bring the desired contaminant concentration levels back to safe conditions with zero adverse risks to human health and the surrounding environment. |
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