NC0055786_additional information requested_19940328

State of North Carolina
Department of Environment,
Health and Natural Resources
Winston-Salem Regional Office
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
Leesha Fuller, Regional Manager
March 28, 1994
Ms. Gisele Comer
City of Lexington
28 West Center Street
Lexington, N.C. 27292
SUBJECT: Total Nitrogen Computation
Lexington Regional WWTP DMRs
NPDES No. NC0055786
Davidson County
Dear Ms. Comer:
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As you are aware, you recently called our Office to report that the computations for
Total Nitrogen on your DMRs did not include Ammonia Nitrogen in their sums. You
explained that the mistake was inadvertent, and had been brought to your attention during a
laboratory inspection by Mr. Jim Meyer with the Division's Laboratory Certification Unit.
You also asked what needed to be done to correct the deficiency.
As a result of our conversation, I contacted Kent Wiggins, Supervisor, of the Water
Quality Facility Assessment Unit. The Facility Assessment Unit deals with compliance
issues related to the self -monitoring program.
Upon review of your situation, and in view of the fact that Total Nitrogen is not
limited by your Permit, it has been decided that the following course of action would be most
appropriate:
In lieu of correcting each DMR individually, recompute the
Total Kjeldahl values including the Ammonia Nitrogen
component, and compile the corrected values in letter form.
The corrections should extend as far back in time as possible,
and at a minimum shall encompass the three (3) preceding
years, the amount of time records are required to be maintained
under Part II, Section D, 6 of your NPDES permit.
Upon completion of the above, submit the corrected data, with a copy of this letter
attached, to the Facility Assessment Unit.
8025 North Point Boulevard, Suite 100, Winston -Salem, North Carolina 27106-3203
Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Ms. Gisele Comer
March 28, 1994
Page #2
Should you have questions on this, or other matters, please contact me at (910) 896-
7007.
Sincerely,
Abner S. Braddy
Environmental Technician
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cc: Kent Wiggins
Central Files
WSRO
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