Abandoned Gas Station in Mays Landing, NJ

Summary

While there is some debate about the definition of abandoned gas stations as to how old does a gas station have to be operational to be declared as abandoned, we can generally agree with the notion that an abandoned gas station is presents a significant risk to the community.

What we do?

We use bio-remediation products AgroRemed and HydroRemed as part of our cleanup protocol.

Results

The tanks were removed in 2018, we closed this project on Jan 17th 2022.

• The RAO attached here.
• The RIR document for details here.

The image below captures the tentatively identifiable compounds (TIC) levels between 2019 - 2020. Most of the 2021 was spent in operation and monitoring for secondary contamination.

We notice that the tentative identifiable compounds (TIC) level had a slight uptick after the in situ treatment event on March 27, 2020 using HydroRemed. This uptick can be explained by the table below. Most of the compounds are listed as “Unknown alkane/benzene” therefore the data is not as fine-grained to differentiate the various alkanes in this instance. In our experience, heavier hydrocarbon chains breakdown to smaller chains and therefore increasing the overall TIC levels.

Some Notes

Ohio DEP has been running these grant programs for quite sometime, allocating approximately USD 600,000.00 for cleanup. The project that we just closed had 8 tanks with a total outlay of USD 180,000.00. We attribute these low costs in our project to using AgroRemed/HydroRemed as soon as baseline numbers are established. In the above project, we had to wait for almost a year before we could get the permit-by-rule (PBR) exception to add AgroRemed and HydroRemed to the site. Our preference would have been that the DEP recognize that since AgroRemed/HydroRemed are listed as a bioremediation agent since 2001, the exception application could have been waived. This would have shortened the project by at least ninety days. In traditional, competitive approaches, delays in days don’t really count as these projects tend to extend for a few years; however, when adding AgroRemed/HydroRemed to the cleanup protocol, the time-lines have usually shortened to 3 - 4 months for remediation below the detection limits. These numbers are based on our experience in past projects.

Site specific data (Monitoring Well - 3)

We had installed 4 monitoring wells, we are focusing on MW-3 in this post.

In-situ treatment with AgroRemed/HydroRemed was done on Mar 27, 2020

These numbers went down from above RCL to ND within 4 weeks, an observation that is consistent with our results in past projects. The project went into a monitoring stage as some secondary contamination was detected and the project finally was closed this week.

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