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Draft Air Quality Permit 7261 - Schuster Concrete Ready Mix

Friday, September 27, 2019


Draft Air Quality Permit 7261, Schuster Concrete Ready Mix, LLC, Construction and operation of a CEMCO Model 150 Transit Mix (Dry Batch) Concrete Plant at 3900 Wisconsin Avenue NW

Notice is hereby given that, pursuant to 20 DCMR § 210, the Air Quality Division (AQD) of the Department of Energy and  Environment (DDOE), located at 1200 First Street NE, 5th Floor, Washington, DC, intends to issue permit No. 7261 to Schuster Concrete Ready Mix, LLC to operate a Model 150 Transit Mix (dry batch) portable concrete plant (electric line powered) with associated 2.78 MMBTU/hr No. 2 fuel oil fired hot water heater at 3900 Wisconsin Avenue NW, Washington DC 20016. The contact person for the facility is Mike Johannes, Manager, at (410) 977-5086. The applicant’s mailing address is 3713 Crondall Lane, Owings Mills, MD 21117.


Maximum emissions from the equipment, producing 100,000 cubic yard per year, and including the 2.78 MMBTU/hr hot water tank, are expected to be as follows:


Maximum Annual Emissions



Particulate Matter (PM) (Total)


Sulfur Oxides (SOx)


Nitrogen Oxides (NOx)


Volatile Organic Compounds (VOC)


Carbon Monoxide (CO)


The proposed overall emission limits for the equipment are as follows:

  1. Emissions of dust shall be minimized in accordance with the requirements of 20 DCMR 605 and the “Operational Limitations” of this permit.
  2. The emission of fugitive dust from any material handling, screening, crushing, grinding, conveying, mixing, or other industrial-type operation or process is prohibited. [20 DCMR 605.2]
  3. The discharge of particulate matter into the atmosphere from any process shall not exceed three hundredths (0.03) grains per dry standard cubic foot of the exhaust. [20 DCMR 603.1]
  4. The discharge of TSP from the concrete batch plant shall not exceed 40 pounds per hour. [20 DCMR 603.1 and Appendix 6-1]
  5. Visible emissions shall not be emitted from these units except that discharges not exceeding 40% opacity (unaveraged) shall  be permitted for two (2) minutes in any sixty (60) minutes period and for an aggregate of twelve (12) minutes in any twenty-four (24) hours period during start-up, cleaning, adjustment of combustion controls, or malfunction of the equipment. [20 DCMR 606.1]

f.    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]

The permit application and the supporting documentation, along with the draft permit 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

Department of Energy and Environment
1200 First Street NE, 5th Floor
Washington DC 20002

[email protected]


No comments or hearing requests submitted after October 28, 2019 will be accepted.

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