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August 25, 2021

Revised Recommended Practices for Installation Of Underground Liquid Storage Systems (PEI/RP100)

PEI’s recommended practices for installation of underground liquid storage systems (RP100) has been revised for 2005 and is now available to individuals and firms interested in understanding the latest UST installation practices.

TULSA, OKLA. (PRWEB) August 25, 2021 -- PEI’s Recommended Practices for Installation of Underground Liquid Storage Systems (RP100) has been revised for 2005 and is now available to individuals and firms interested in understanding the latest UST installation practices. PEI’s RP100 is specifically mentioned in the U. S. EPA's regulations as one document installers of UST systems can follow to meet the federal requirements. PEI revises the recommended practice when warranted to ensure that users of the document receive the latest guidance on the proper methods and techniques used in installing UST systems.

PEI's Tank Installation Committee, the group responsible for writing the recommended practice, reviewed 118 suggestions submitted by installers, manufacturers, consultants, regulators, petroleum marketers, and trade associations. Over 50 percent of those comments were accepted in some manner by the committee.

As a result of the committee's response to public comments, PEI/RP100-05 now:
Establishes a separate chapter for preinstallation inspection and tank testing which includes a section on preinstallation testing of compartmented tanks
Reduces the amount of reinforced concrete required as cover in areas subject to traffic
Revises the section dealing with product used for ballast
Allows sand to be used as backfill material for fiberglass tanks with manufacturer's approval
Revises sections on tank anchoring and hold down strap isolation to be consistent with the Steel Tank Institute's recommended practice on the subject
Revises anchoring diagrams to illustrate current rigging and anchor point practices
Drops mid-anchoring from the discussion of anchoring methods
Recommends metallic anchor straps to be heavier than required initially to provide a corrosion allowance during the expected life of the storage system
Adds another warning to the section on ball-float valves and recommends against their use. If ball-float valves are used, the document now states they must be installed in extractable fittings.
Specifies the minimum clearance necessary between piping and electrical conduit, utilities, other system components, and any nearby structure
Changes the pressure at which product piping is hydrostatically tested
Expands the vent piping system section
Requires that the owner/operator establish and implement a written program of scheduled inspections, maintenance, and periodic testing of the storage system and its components
Recommends a procedure for testing tank-top and dispenser sumps
Adds sections on containing releases for submersible-pump heads and dispensers
Establishes a new section on monitoring satellite-dispenser piping for leaks

PEI/RP100-05 supersedes the previous recommended practice of the same name that was published in 2000. The publication is copyrighted and may not be photocopied or otherwise reproduced. You can order online at www.pei.org/RP100 or request an order form by faxing PEI at 918-491-9895.


PEI is the international trade association for distributors, manufacturers and installers of equipment used in petroleum marketing and liquid-handling operations. Users of the equipment include service station and convenience store owners, terminals, bulk plants and airport refueling operations.

PEI is comprised of more than 1,661 companies engaged in the manufacture and distribution of equipment used in petroleum marketing operations. Members are located in 50 states and 81 countries. The Institute's headquarters are located in Tulsa, Oklahoma.

Posted by Industrial-Manufacturing at August 25, 2021 06:37 AM

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