Hello. Sign In   |    Help & Support   |    Contact Us   |   
Standards Store
  •  Shopping Cart  (0) 
      Your Shopping Cart is empty.
      If you already have an account, Sign In
      If you are new to IHS, Create New Account
API PUBL 4682 (Complete Document)
Revision / Edition: 99    Chg:    Date: 06/00/99   Abbreviations Definitions
Not Active, See comments below
Additional Comments:I46820 * W/D NO S/S
Published By:American Petroleum Institute (API)
Page Count:159
Secure PDF
$125.00 USD
  In Stock
Print :
$125.00 USD
  In Stock
PDF + Print
$ 212.50 USD
You save 15% In Stock
Product Family
Previous Editions
Referenced Items
There are no items in this referenced list
People Also Bought These
API 510
API 570
API 579-1
Related Products
There are no related products.
API STD 653, 5th Edition IHS Petrochemical Collection IHS Standards Expert
Description / Abstract Back to Top
1.1 Purpose and Scope

This publication provides an overview of proven technologies for recovering free-product petroleum releases to groundwater. An approach is given to optimize free-product recovery (FPR) for minimal water production and free-product smearing. Information and guidance for design and analysis of free-product recovery systems using trenches, skimmer wells, single and dual-pump wells, and vacuum-enhanced wells are provided. The principles that govern the distribution and movement of free-product petroleum hydrocarbons near the water table in an unconfined groundwater aquifer are reviewed. Information and data for parameter estimation are also provided.

This publication does not address the methods, procedures and equipment to be used in site assessment for locations of free-product releases. It does not address issues of efficiency of free-product recovery in relating recovery amounts to reduction in risk to groundwater receptors. Tools for characterizing petroleum hydrocarbon distribution are discussed only if they relate to design and analysis of free-product recovery systems. This publication does not address alternative remediation methods for petroleum-impacted soils and groundwater such as soil vapor extraction, bioventing, air sparging, pump-and-treat, or intrinsic bioremediation.

Discussion of petroleum hydrocarbon liquids in the subsurface environment involves the use of certain terminology. Petroleum hydrocarbon liquids generally are less dense than water. This implies that such liquids would float on the water table of an unconfined groundwater aquifer. This contrasts with liquids such as chlorinated solvents that have density greater than water, resulting in the potential to sink to the base of an aquifer. Petroleum hydrocarbons are an example of a "light" nonaqueous phase liquid (LNAPL), which means that they are lighter than and immiscible with water. If LNAPL is present in sufficient quantity, it will move in response to impressed forces. This condition of free-product or mobile LNAPL contrasts with the condition of residual product where the hydrocarbon liquid is present as discontinuous globules within the porous matrix. Residual LNAPL cannot be skimmed or pumped from a well.
Additional Supplemental Documents

Prices subject to change without notice.
Help & Support
Help & Support
Office Locations
Abbreviations Definitions
Shop by Industry
Browse Publishers & Products
Featured Products
New Releases
Top Sellers
Tools & Services
Research Center
Alerts & Content Tools
Deposit Accounts
Standing Orders
Free Newsletters
Individual Standards
Custom Online Collections
Online Corporate Solutions
Visit www.ihs.com
About IHS  |   Contact Us  |   Careers  |   Investors  |   Site Map  |   Privacy Policy  |   Terms of Use (c) 2014 IHS.