California expands underground biodiesel storage to B20
The Californian Water Resources Control Board has approved expanding the state’s limit for underground storage of biodiesel blends from the existing B5 limitation up to B20.
This ruling builds on the ASTM specifications adopted late last year allowing the underground storage of the biodiesel B5 blend, from the previous law of no underground storage of any biodiesel blend.
The 25-year-old California law requires that any chemicals to be stored in underground tanks be tested and independently certified as being compatible with the tank materials, and requires an approved leak detection method.
The three-year variance allows underground storage of blends up to B20 in double-walled tanks and piping that currently meet requirements for petroleum-based fuels. It is hoped that the Underwriters Laboratory will have approved testing protocols and the required tests completed before the end of the three year period.
This ruling builds on the ASTM specifications adopted late last year allowing the underground storage of the biodiesel B5 blend, from the previous law of no underground storage of any biodiesel blend.
The 25-year-old California law requires that any chemicals to be stored in underground tanks be tested and independently certified as being compatible with the tank materials, and requires an approved leak detection method.
The three-year variance allows underground storage of blends up to B20 in double-walled tanks and piping that currently meet requirements for petroleum-based fuels. It is hoped that the Underwriters Laboratory will have approved testing protocols and the required tests completed before the end of the three year period.
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