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Proposed Air Quality Permit 6472-A1 – District of Columbia Water and Sewer Authority

Friday, October 31, 2014

PUBLIC NOTICE

Proposed Air Quality Permit 6472-A1 – District of Columbia Water and Sewer Authority (DC Water), Packed bed wet air odor control scrubber at the Blue Plains Wastewater Treatment Plant at 5000 Overlook Avenue SW

Notice is hereby given that, pursuant to 40 C.F.R. Part 51.161, and D.C. Official Code §2-505, the Air Quality Division (AQD) of the District Department of the Environment (DDOE), located at 1200 First Street NE, 5th Floor, Washington, DC, intends to issue Permit #6472-A1 to the District of Columbia Water and Sewer Authority (DC Water), amending a permit to construct a packed-bed wet air scrubber at the Blue Plains advanced wastewater treatment plant, located in Washington, DC. The contact person for the applicant is Meena Gowda, Principal Counsel, at (202) 787-2628.

Odor Scrubber to be Permitted

Equipment Location

Address

Equipment Size

Type

Blue Plains WWTP- Atop  Solids Processing Building

5000 Overlook Ave. SW

Washington, DC 20032

54,000 cfm

Indusco Packed  Bed Tower Scrubber  or equivalent

 

 

 

 

 

The proposed emission limits are as follows:

a.   Visible emissions shall not be emitted into the outdoor atmosphere from the equipment covered by this permit. Where the presence of uncombined water is the only reason for failure of an emission to meet the requirements of this condition, this condition shall not be applicable.

      [20 DCMR 201]

b.   An emission into the atmosphere of odorous or other air pollutants from any source in any quantity and of any characteristic, and duration which is, or is likely to be injurious to the public health or welfare, or which interferes with the reasonable enjoyment of life or property is prohibited. [20 DCMR 903.1]

c.   Permittee shall ensure that after an operating permit has been issued, the dewatered sludge loading facility (DSLF) odor scrubber, is properly operated to achieve the following removal efficiencies or rates [20 DCMR 201]:

  1.   Removal of a minimum of 99 percent of ammonia from the DSLF air stream or a maximum outlet concentration of 0.20 ppm ammonia, whichever results in a higher outlet emission rate;

  2.   Removal of a minimum of 80 percent of total reduced sulfur compounds from the DSLF air stream or a maximum outlet concentration of 0.20 ppm of these compounds, whichever results in a higher outlet emission rate; and

3.    Removal of a minimum of 99 percent of hydrogen sulfide from the DSLF air stream or a   maximum outlet concentration of 0.1 ppm of hydrogen sulfide, whichever results in a higher outlet emission rate.

The application to amend the permit to construct the odor scrubber and the draft permit and supporting documents are available for public inspection at AQD and copies may be made available between the hours of 8:15 A.M. and 4:45 P.M. Monday through Friday.  Interested parties wishing to view these documents should provide their names, addresses, telephone numbers and affiliation, if any, to Stephen S. Ours at (202) 535-1747.

Interested persons may submit written comments or may request a hearing on this subject within 30 days of publication of this notice.  The written comments must also include the person’s name, telephone number, affiliation, if any, mailing address and a statement outlining the air quality issues in dispute and any facts underscoring those air quality issues.  All relevant comments will be considered in issuing the final permit.

Comments on the proposed permit and any request for a public hearing should be addressed to:

Stephen S. Ours   
Chief, Permitting Branch - Air Quality Division

District Department of the Environment
1200 First Street NE, 5th Floor
Washington, DC 20002

[email protected]

No written comments or hearing requests postmarked after December 1, 2014 will be accepted.

For more information, please contact Stephen S. Ours at (202) 535-1747.