VacCirc is a remediation system that uses in-well stripping and groundwater re-circulation between wells or screen zones to remove up to 99% of VOCs like petroleum hydrocarbons and chlorinated solvents. It is 50% cheaper to install than comparable dual phase extraction systems and 20-30% cheaper than typical two-phase extraction. Operation and maintenance costs are also 50% lower than other systems due to reduced water treatment and sampling needs.

1. VacCircTM
A typical VacCircTM re-circulation cell
includes a recirculation well(s) and a vapor
treatment unit. Multiple cells can be used
to create a barrier or to remediate a larger
area. Vacuum Enhanced
Cost Comparison Re-Circulation System
The installation cost of a VacCircTM
System is 50% cheaper than a comparable
dual phase extraction system, which
includes an air stripper, down-hole pumps AVAILABLE FROM: Reduce Remediation Cost in Half
and a SVE unit.
Bays Environmental
The installation cost of a VacCirc system
is also 20% to 30% cheaper than a typical Remediation Management
Innovative remediation solution
two-phase extraction system which Very Small (Micro) Business
includes drop tubes, water treatment unit that combines
NAICS CODES: 541620, 562910
and NPDES discharge setup. in-well stripping,
two-phase extraction,
The operation and maintenance costs of
a VacCircTM system are 50% less than a re-circulation and
comparable dual phase extraction or
27702 Crown Valley Parkway Phone: 888-511-5335 ext. 102
bio-venting
two-phase extraction system due to cost Suite D4-333 Fax: 888-542-0229
savings on water treatment, NPDES sam- Ladera Ranch, CA 92694 E-mail: info@vaccirc.com
pling and reduced overall system opera-
tion time. Tel: 714-455-0057 www.vaccirc.com

2. Introduction Specifications
The VacCircTM System is very simple to in-
stall and operate. No moving parts in the
recirculation cell components. All PVC con-
struction drop tubes and wells. Very easy to
cleanout the wells and drop tubes.
The VacCircTM System has the following
main components:
 Re-circulation wells and monitoring
piezometers
 Vacuum blower
 Vapor treatment unit Benefits
VacCircTM is a trademark of Bays Invest-  Flow control system
ment, Inc. for a patent pending method  Conveyance piping The VacCircTM System removes (strips)
of soil and groundwater remediation up to 99% of VOCs from groundwater
 Gauges and meters
using in-well stripping, vapor extraction during each recirculation cycle.
 Optional - oxygen diffusers and an oxy-
and groundwater re-circulation. gen tank or chemical oxidation
TM
VacCircTM will remove even hard to strip
VacCirc Re-circulates groundwater substance injection setup compounds such as 1,4-dioxane after
between two screen zone separated by a multiple re-circulation and stripping
packer, between two wells installed in VacCircTM can be used as a set of vertical cycles. Given that each cycle strips 10%
the same borehole or separate bore- recirculation and slant wells or a shallow to 20% of 1,4-dioxane, after 10 to 20
holes. and deep well pairs installed in the same re-circulation cycles, 60% to 98% of the
VacCircTM performs recirculation using borehole 1,4-dioxane will be removed.
drop tubes and vacuum source similar
to two-phase extraction without remov- VacCircTM performs air stripping under
ing water. vacuum within the recirculation cell,
which produces higher stripping rates
The VacCircTM method strips up to 99% than the conventional air strippers.
of volatile organic compounds (VOCs)
such as petroleum hydrocarbons and VacCircTM may be applied as a source
chlorinated solvents from groundwater removal, a final polishing method after
during re-circulation. source remediation, and a barrier to pre-
VacCircTM is effective in treating vent further migration of contaminants.
chlorinated and aromatic hydrocarbons. VacCircTM reduces remediation cost by
VacCircTM increases in-situ aerobic 50% when compared to dual phase and
bioremediation, which can be enhanced two-phase extraction methods.
by addition of oxygen or ozone to the
recirculation cell.