Gravel-Plug Abandonment and Continuing Education Deficiency
A driller with 22 years of experience receives a notice of violation for abandoning a well by filling it with 15 ft of gravel and a steel plate, without grout, in an area where the well penetrated a confined aquifer. He has 45 days to submit a corrective action plan. His license renewal is due in 60 days; he has completed 6 hours of continuing education, including 2 hours in well construction and 4 in business management. He argues that the well was dry and that he has always used gravel plugs. The rules require continuing education in approved subjects and a remedial plan that protects groundwater. He wants to take a 6-hour online course next week and submit the same gravel-plug method as his corrective plan because it is cheaper.
1. Evaluate the proposed corrective action plan. What must a proper abandonment plan include for this well?
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The dry-well argument does not excuse improper abandonment. A well that penetrates a confined aquifer can provide a vertical pathway even if it is dry, so the plan must seal the entire interval that could allow movement between aquifers. Fifteen feet of gravel and a steel plate is not a grout seal; gravel is permeable and the plate can corrode or be removed. A proper plan should propose removing the plate and as much gravel as possible, cleaning the well, and filling with a continuous low-permeability grout-neat cement or bentonite-placed by tremie from the bottom up. The plan should state materials, mix, volumes, pressures, method, verification, and schedule, and it should protect the confined aquifer. If the gravel cannot be removed, the plan must explain how the grout will displace or isolate it. The driller should not resubmit the same gravel-plug method just because it is cheaper.
2. Will the 6-hour online course solve his continuing education deficiency? Explain.
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The 6-hour online course may help, but it does not automatically cure the deficiency. Continuing education must be in approved subjects, and 4 hours of business management may not count toward well-construction or groundwater-protection requirements. The driller should check the approval status of the online course and the subject breakdown before relying on it. If the rules require a certain number of hours in approved technical subjects, he may still be short even after 12 total hours. He should obtain documentation and submit it with renewal. Continuing education is separate from the corrective action plan; taking a course does not substitute for fixing the well. If he is short, he should ask the agency about options before the renewal deadline rather than assume the course will be accepted.
3. What remedial actions and consequences should he expect?
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Expect a compliance order requiring the corrective action, not just a letter. The agency may require an approved plan, inspection during the work, and a post-abandonment report. Because the original method was inadequate, the driller may face a civil penalty, probation, additional continuing education, or license suspension if he fails to comply. The renewal may be held until the violation is resolved and CE is complete. Remedial action should include proper abandonment, documentation, and possibly a re-inspection of other wells he abandoned by the same method. He should cooperate, keep records, and not repeat the gravel-plug practice. The goal is groundwater protection and demonstrated competence, not the cheapest fix.