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Air Treatment Facility & Street Vacation at Mission Road & Jesse Street(Archived)

An Initial Study/Mitigated Negative Declaration (IS/MND) is available for review for the Air Treatment Facility at Mission Road and Jesse Street project. The proposed project involves the construction and operation of a sewer air treatment facility (ATF) near the intersection of Mission Road and Jesse Street, at 651 South Mission Road as well as the vacation of two street segments immediately adjacent to the project site. Near the intersection of Mission Road and Jesse Street, wastewater drops approximately 23 feet from the shallower North Outfall Sewer (NOS) to the deeper ECIS. The turbulence created by this drop releases foul air. The ATF is intended to treat this foul air resulting from the turbulent flow. The ATF would treat foul air emitted from the ECIS and would include two-stage treatment, with biotrickling filtration (BTF) vessels as the first stage and activated carbon absorption as the second stage. The BTF vessels would remove hydrogen sulfide and some odorous volatile organic compounds (VOCs), while the carbon units would remove the majority of the remaining VOCs and odors. The project would be constructed on approximately one-third of an acre and include three BTFs, four carbon units, one 25-foot tall exhaust stack, a fan building, a standby generator, a transformer, and a recirculation pit. These facilities would be located south of the existing Mission & Jesse drop structure located in the most northern area of the site. Although the proposed project could have a significant effect on biological resources, there would not be a significant effect as a result of the implementation of the identified mitigation measure.

The Initial Study/Mitigated Negative Declaration can be viewed from the links below and is available for review beginning April 19, 2012 at the following locations:

  • Benjamin Franklin Branch Library, 2200 East First Street, phone (323) 263-6901
  • Council District 14 Boyle Heights Field Office, 1870 East First Street, phone (626) 526-3059; and
  • Public Works, Bureau of Engineering, EMG, 1149 S. Broadway (contact Nicole Cobleigh at 213-485-5761)

Comments must be received in writing by May 8, 2012, by e-mail to (include "ATF Mission & Jesse" in subject), or mail to:

Nicole Cobleigh 
City of Los Angeles
1149 South Broadway, Suite 600, Mail Stop 939
Los Angeles, CA 90015

If you have any questions, please contact Nicole Cobleigh at (213) 485-5761 or via e-mail at

(Click on italicized text to view report)
Review Status Public Review Period
Notice of Intent to Adopt MND    
Initial Study/Mitigated Negative Declaration Closed April 19, 2012 - May 08, 2012

Initial Study Appendices