January 22, 2013
Directive 039: Revised Program to Reduce Benzene Emissions from Glycol Dehydrators Updated
New Benzene Emission Reduction Requirements and Due Date Change for the Annual Dehydrator Benzene Inventory List
The Energy Resources Conservation Board (ERCB) announces the release of the updated edition of Directive 039: Revised Program to Reduce Benzene Emissions from Glycol Dehydrators, effective immediately, which reduces benzene emissions from glycol dehydrators. This directive sets out new requirements that will ensure continued compliance with the Alberta Ambient Air Quality Objectives (AAQO). New modelling results show that to consistently meet the AAQO for the benzene one-hour average, the upstream oil and gas industry must reduce current emission targets.
The directive also sets out a revised submission date for the annual Dehydrator Benzene Inventory List (inventory). The submission deadline for the inventory has been revised to May 1 of each year (previously July 1). As some dehydrator work can be seasonal in nature, this date change supports a more appropriate timeframe for industry to respond to any issues regarding the Directive 039 requirements. The ERCB will continue to audit inventory submissions annually for compliance with Directive 039.
The 2013 inventory submission is due May 1, 2013. The new benzene emission reduction targets come into effect starting January 1, 2014, as set out in Directive 039.
Key Features of the Updated Directive
- The existing emission limits will be phased out as updated limits come into force over the next five years.
- All glycol dehydrators must meet the updated emission limits by January 1, 2018.
- New benzene emission limits are based on the distance from the dehydrator to a permanent residence or public facility regardless of installation date.
- Emission reductions are scheduled across a five-year implementation time line.
- The annual inventory submission deadline is May 1 of each year beginning May 1, 2013.
- Completion of the Decision Tree Analysis is no longer a requirement, it is now a recommendation.
- The e-mail address for submitting the inventory to the ERCB has been updated.
Directive 039 is available on the ERCB website, www.ercb.ca. Printed copies of the directive may be purchased from ERCB Information Services, Suite 1000, 250 – 5 Street SW; telephone: 403-297-8311 or 1-855-297-8311 (toll free); fax: 403-297-7040; e-mail: firstname.lastname@example.org.
Questions or comments about this bulletin or Directive 039 may be submitted to BenzeneD39@ercb.ca.
<original signed by>
Field Surveillance and Operations Branch