5 Things You Need to Know About Groundwater Remediation
November 8, 2015
Groundwater remediation is the act of removing pollutants from the groundwater or converting the pollutants into particles that will not harm the public. Here are five things you need to know about the groundwater remediation process:
- Groundwater cleanup or remediation is required when a release (e.g. leak from an underground storage tank) or a spill of petroleum or other chemicals/contaminant(s) reaches the groundwater.
This release or spill then spreads into a plume that has concentrations within that are above the groundwater quality standards for the public.
- The duration for groundwater remediation at a site can range from as little as 6 months to more than 10 years. This is dependent upon many factors including the contaminant type, soil material and other subsurface variations.
- Most states have instituted Risk Based Rules, allowing various types of contaminants to remain in the groundwater at levels above groundwater quality standards. This is, of course, based on the level of risk to the health of the public.
- Groundwater remediation can be accomplished by using naturally occurring materials within the groundwater or aquifer soil materials such as bacteria and organic carbon, more aggressive active approaches using physical methods (e.g. air sparging, soil vapor extraction, liquid extraction/pumping), or chemical methods (e.g. injecting simple compounds such as molasses, or oxidizing chemicals like sodium persulfate or hydrogen peroxide).
- Physical approaches such as air sparging (injecting air into the groundwater to create a bubbling affect) and soil vapor extraction [SVE] (pulling air out of the soil via vacuum) technologies have been around for many decades.
However, just because they are older doesn’t mean they are not just as good as or better than newer or more costly technologies in remediating volatile organics like fuels and solvents.
How Shield Engineering Can Help!
Each groundwater situation is unique and Shield Engineering can help you find the right groundwater remediation solution to fit your challenges.
For more information on how Shield Engineering can help you, please fill-out the form on our website or call 800-395-5220 to speak to a Shield team member.