The L&R Group
Corrosion Services Division
1. Consulting / Engineering
- On how to solve your complex corrosion problems
- Understanding the many regulations and requirement concerning your underground structures
- Cost saving benefits of using cathodic protection to lengthen the life of your steel structures.
- Design of new cathodic protection systems from underground tanks and pipelines to waste treatment
- plants and dock piers
- Custom solutions to complex corrosion problems
2. Our Team designs and Installs Impressed or galvanic (sacrificial) systems for these type of systems
- Underground Storage tanks
- Aboveground Storage tanks
- Natural gas pipe lines
- Petroleum and Oil pipe lines
- Hydroelectric turbine penstocks
- Waste water treatment plants
- Power transmission line towers
- Dock Piers
- Bridge Decking and Bridge Footings
- Wind Turbine anchoring bolts and structures
- Have a unique application, let us design a system for you.
3. Diagnostic (troubleshooting) on Impressed and sacrificial systems
- Why replace the whole system when the problem could be small and fixed easily. Our team of experienced technicians can save you money.
- Big or small, Impressed or galvanic we handle all types of repairs or replacement of existing cathodic protection systems
- We provide testing services to comply with federal and NACE mandated testing procedures.
Corrosion Issues in Storing Emerging Fuels, including Diesel and Gasoline Blends
Over the past couple decades, many fuel formulations have entered the market and corrosion on the insides of tanks and other UST components not required by law to have corrosion protection has become extremely common. Below we provide information on more recent corrosion risks to UST systems, offer explanations, and discuss potential prevention and responses actions.
Corrosion has been commonly reported in USTs storing diesel fuel and gasoline-ethanol blended fuels. Anecdotes suggest when storing diesel fuel, corrosion generally appears on metal components inside USTs.
When storing ethanol blended fuels, corrosion generally appears in sumps. Instances of this corrosion began appearing about a decade ago.
The federal UST regulation requires UST owners have corrosion protection for their UST systems’ metal components in contact with the ground. But corrosion protection is not required for metal components inside USTs or in sumps. Corrosion in USTs storing emerging fuels does not violate federal UST requirements.
However, UST owners and operators must ensure corrosion does not affect the functionality of their equipment. If UST equipment does not function as intended, it may violate the federal UST regulation or lead to releases into the environment. Owners and operators should contact their state UST implementing agencies because they may have requirements that differ from the federal regulation.
Corrosion of Internal Components in USTs Storing Diesel Fuel
EPA conducted research on 42 actively operating underground tanks storing diesel fuel at facilities all across the United States and found that 83 percent (or 35 USTs) exhibited moderate or severe corrosion of metal components inside the tank system. EPA’s July 2016 report discusses that research. Industry provided invaluable assistance to EPA in research design, operational coordination, and report reviews over the course of the research effort. EPA will continue to coordinate with industry to understand the corrosion issue and identify solutions.
EPA cannot project the actual percentage of USTs storing diesel that are affected by corrosion nationwide. However, this could be a widespread and potentially significant problem for owners of underground tanks storing diesel fuel.
The corrosion may cause metal components inside both steel and fiberglass UST systems to corrode. This can possibly shorten the lifespan or affect the serviceability of components, including limiting the movement of floats on automatic tank gauging systems, operability of mechanical devices designed to prevent the chance of overfilling the tank, or ability of shear valves to shut off flow of product in the event of a release. Corrosion may cause dispenser filters to clog and be replaced more frequently and could potentially limit the proper functionality of equipment designed to test for leaks in fuel product lines. EPA recommends UST owners check for corrosion in their tank systems storing diesel fuel, and if they find corrosion, repair or replace equipment as necessary to ensure proper functionality.
- EPA’s July 2016 research report, Investigation of Corrosion-Influencing Factors in Underground Storage Tanks with Diesel Service(EPA 510-R-16-001). July 2016.
- EPA’s July 2016 Notice of Corrosion Risks in Underground Storage Tanks Storing Diesel Fuel
- EPA’s questions and answers about corrosion in underground tanks storing diesel fuel
Products These are a portion of the products L&R uses when providing our Corrosion services.
|Impressed Current Anodes|
High Silicon Cast Iron
Mixed Metal Oxide
|Sacrificial Anodes |
Thermoweld Materials and Equipment
Pipeline Tapes and mastic
Link Seals, Casing Insulators
Insulating Unions and Flange Kits
Junction and Bond Boxes
Standard Air Cooled
Automatic Potential Controlled
Loresco (Calcined Petroleum)
Great Lakes (Petroleum-50# Bags)
Metallurgical (50# Bags)
Environmental Hole Seal
TW & THHN Sol/Str Wire
Tinker & Rasor
Split Bolt Connectors