AutoTracker™ (U.S. Patent Number 6,520,259) Floating Extraction Inlets were added to a DPE system at a remediation site in mid-Michigan following several years of operational problems caused by fluctuating water table levels. Installation was straightforward and system performance improved immediately, reducing on-site maintenance, labour and O&M costs and greatly improving groundwater recovery. Ongoing savings were so dramatic that payback for the initial capital cost was achieved in just four months. Projected over the project life cycle, cost savings should surpass $600,000, with an expected 10-year reduction in time to reach the remediation target.
Parameter |
Before Conversion to AutoTracker™ |
AfterConversion to AutoTracker™ |
Annual O&M |
$44,500 |
$35,500 |
Groundwater Recovery |
460 gal/day |
914 gal/day |
Cost/Gallon Recovered |
$0.27 |
$0.11 |
Capital Cost for 12 AutoTrackers |
N/A |
$3,000 |
Payback Period |
N/A |
4 months |
Estimated O&M Duration |
30 years |
20 years |
Life Cycle Cost |
$1,335,000 |
$710,000 |
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