Services Offered
Alpine Environmental Services, Inc. - 1146 Central Avenue - Albany, New York 12205 - Phone (518)453-0146
Vapor Intrusion Mitigation/Sub Slab Depressurization System Design &
Installation

ALPINE has been designing and installing sub slab depressurization
systems and vapor/gaseous intrusion mitigation systems since 2000.  
As an early entrant into this field, which is, only now beginning to
become mainstream, our engineers pioneered proprietary methods for
control of negative pressure field extension in new construction.  Our
experience in design and install is wide ranging from the smallest of
residential properties, to factories, to sprawling strip malls.


















We have designed and installed systems for the removal of chlorinated
solvents (i.e. perchloroethylene (PCE) (perk), thrichloroethene (TCE),
etc.), gasoline, fuel oil, radon, and methane.  Our design approach
involves a three-step process:

  1. Collect site-specific use information.  This is an important step
    used to balance space function with system cost.  For example,
    it is desirable to minimize visible piping in a retail space; so
    higher capacity fans can be incorporated to minimize visible
    piping.
  2. Perform site-specific pressure field extension testing.  This
    phase involves coring holes through the concrete floor and
    testing the pressure field created with a series of test fans to
    determine the sub slab aggregate gradient to be used in the
    system deign.
  3. Use the data collected in the first two phases to create drawings
    and a specification identifying the equipment and layout of the
    system.

ALPINE provides detailed, scaled drawings of the designed system
components and a detailed written specification.



















             Contact ALPINE for more information on
      Vapor Intrusion Mitigation / Sub-Slab Depressurization 



            contact: Mark
            office:    (518)453-0146   X:303
            email:    MarkS@AlpineEnv.com       
Vapor Intrusion Mitigation / Sub-Slab Depressurization
One of four trunk lines installed in an
Albany, NY factory
Schematic of a typical residential vapor intrusion mitigation system.
Alpine Environmental Services Inc.
20,000 sq ft factory
ALPINE performed all phase of vapor gas investigation.   
1. Phase I Investigation
2. Phase II Testing
3.  Sub Slab
Depressurization System
Installation (Mitigation)
45,000 sq ft strip mall
ALPINE designed and  
installed sub slab
Depressurization System  
(Mitigation). System
consisted of 8 separate
systems.
Methane Gas Mitigation
ALPINE designed and  
installed sub slab
Depressurization Systems  
to mitigate methane gas in
18 residential houses in
Colonie, New York.
Chlorinated Gas Mitigation
ALPINE installed sub slab
Depressurization Systems  
to mitigate chlorinated
solvent mitigation in 24
residential houses in
Rouses Point, New York.
Vapor Intrusion / Sub Slab Depressurization