NC0061204_Permit (Modification)_20080527

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit: NC0061204
Scarlett Acres MHP WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
EPer7n7iAit ±Ldification
Staff Report
201 Facilities Plan
Instream Assessment (6713)
Environmental Assessment (EA)
Permit
History
Document Date: May 27, 2008
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NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross,Jr., Secretary
Coleen H.Sullins, Director
May 27, 2008
Mr. Thomas M. Alphin
P.O. Box 5
Walkertown, N.C. 27051-0005
Subject: Modification of NPDES Permit NCO061204
Scarlett Acres MHP WWTP
Forsyth County
Dear Mr. Alphin:
Division staff from the Environmental Sciences Section previously discussed with you the revised testing
requirements for Aquatic Toxicity. These new requirements were inadvertently omitted from your permit at
its last renewal. This permit modification updates the testing requirements for effluent toxicity testing. No
other changes to the permit have been made.
Please find enclosed the revised page, which should be inserted into your permit. The old page may then
be discarded. All other terms and conditions contained in the original permit remain unchanged and in full
effect. This permit modification is issued under the requirements of North Carolina General Statutes 143-
215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency.
If any measurement frequencies or sampling requirements contained in this permit modification are
unacceptable to you,you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be a written petition conforming to Chapter 150B of
the North Carolina General Statutes, filed with the Office of Administrative Hearings(6714 Mail Service
Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and
binding.
If you have any questions concerning this permit modification,please contact Charles Weaver of the
NPDES Unit at [phone], extension 511.
Sincerely,
Coleen H. Sullins
H
cc: Central Files -
Winston-Salem Regional Office/Rose Pruitt
NPDES Unit
Aquatic Toxicology Unit -
1617 Mail Service Center,Raleigh, North Carolina 27699-1617 One
512 N.Salisbury St.,Raleigh,North Carolina 27604 Phone: [phone]/FAX [phone]/www.ncwaterquality.org North Ca rolin a
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Permit NCO061204
CHRONIC TOXICITY MONITORING (Quarterly)
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the"North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised February 1998,or subsequent versions.
The effluent concentration defined as treatment two in the procedure document is 90%. The testing shall be
performed as a Ceriodaphnia dubia 7day pass/fail test. The tests will be performed during the months of
February, May, August, and November. Effluent sampling for this testing shall be performed at the NPDES
permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form(MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: NC DENR/DWQ/ Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity(AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of"No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at
the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert to
quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to
include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation& reporting of the data submitted on the DMR& all AT Forms
submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.

Scarleu Acres NCO061204
Subject: Scarlett Acres NCO061204
From: John Giorgino <[e-mail]>
Date: Fri, 16 May 2008 14:50:58 -0400
To: Charles Weaver<Charles.Weaver@ncmaiLnet>
CC: Cindy A Moore <[e-mail]>, Susan Meadows <[e-mail]>
Charles, I just spoke to Mr. Thomas Alphin of Scarlet Acres. It has come to my
attention that his permit contains the old tox testing language. My records indicate
that I requested that language to be changed back in 2004 when I received the draft.
It was never done, nor did we receive the final permit here. Can you amend the test
language as soon as possible, and forward that to us and Mr. Alphin?
Also, Mr. Alphin has indicated that his permit is up for renewal this time next
year. He was not aware of 2nd species testing. Can you forward him those details
too. Thank you Charles.
John Giorgino
Environmental Biologist
North Carolina Division of water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
Mailing Address:
1621 MSC
Raleigh, NC 27699-1621
Office: 919 743-8441
Fax: [phone]
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