NPC Services, Inc.
EPA Petro Processors Fact Sheet (links to external site)
Petro-Processors site remediation activities continued to progress towards site
closure during the past year.
completed annual long term monitoring activities at the Brooklawn and Scenic
Operable Units (OUs). Based on the annual review of performance monitoring data
and annual inspection of cover areas, each of the selected remedies for the
impacted environmental media was found to be protective of human health and the
conditions in the alluvial sediments at the Brooklawn OU continue to be
supportive of the anaerobic biodegradation processes necessary to reduce
groundwater contaminant concentrations to levels predicted by the groundwater
flow and solute transport model upgradient of the point of compliance monitor
wells. Enhanced in-situ reductive dechlorination is the approved remedial action
at the Scenic OU. Remedial injections of extracted groundwater amended with
molasses to 0.3% solution were completed at the source treatment zone to promote
and sustain geochemical conditions necessary for enhanced reductive
dechlorination. Remedial injections at the distal treatment zone are planned to
be performed during 2022.
interim remedial action (activated carbon treatment of the downgradient plume)
was initiated downgradient of the Scenic OU distal treatment zone in 2016 and
continued through 2020. Data analysis has shown this interim remedial action to
be effective in remediating the transitional plume downgradient of the distal
treatment zone. In December 2020 USEPA and LDEQ approved discontinuing the
pumping from the four (4) extraction wells and pumping ceased in December 2020.
Beginning in March of 2021, the wells have been sampled quarterly for
of Concern (COC) were below the remedial
standards (MCLs) in three of the wells for four (4) consecutive
quarters. Only a single COC was slightly above the MCL for the first three (3)
quarters in the fourth well but was below the MCL in that well in the fourth
quarter. Sampling of this well will continue until results are below the MCL for
four (4) consecutive quarters.
USEPA completed the fourth Five Year Review of the site and issued its Fourth
Five-Year Review Report in 2021. Workplans to address the Five Year Review
findings were being prepared and/or submitted in late 2021.
site completed 21 years and over 700,000 man-hours with no recordable injuries.
William C. Dawson, President
Disclaimer: Unsolicited applications for employment or resumes are not maintained by NPC Services, Inc. NPC accepts applications on company-supplied forms only, and will not accept applications except for a specific position, and then only when an opening is advertised. All applications that do not meet this requirement will be returned.
This page was last modified 08/08/22 .