NC0039594_Permit (Modification)_19980527

NPDES DOCUMENT SCANNING COVER SHEET
NC0039594
Maiden WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
(ielatt Modificatio
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
May 27, 1998
This document is printed on reuse paper - iore any
content an the resrerse side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
May 27, 1998
Mr. Michael Lingerfelt
Town of Maiden
P.O. Box 125
Maiden, North Carolina 28650
DEN R
Subject: NPDES Permit Modification
Permit NC0039594
Maiden WWTP
Catawba County
Dear Mr. Lingerfelt:
The Division issued the subject permit on July 24, 1995. A review of the permit file by the
Division's Pretreatment Unit has determined that the subject permit does not contain the correct text
for facility with a pretreatment program. Accordingly, we are forwarding this permit modification.
This modification changes the text of Part III in the subject permit and provides the current procedure
for Quarterly Toxicity Monitoring.
Please find enclosed the revised Effluent Limitations and Monitoring Requirements page and the
replacement pages for Part III of the permit. These pages should be inserted into your permit. The old
pages 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 parts, 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, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. 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 at
[phone], extension 511.
cc. Central Files
Mooresville Regional Office, Water. Quality Section
NPDES Unit
Compliance Enforcement Unit
Aquatic Toxicology Unit
Pretreatment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer [e-mail]

A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Permit No. NC0039594
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall
001. Such discharges shall be limited and monitored by the Permittee as specified below:
LIMITS
MONITORING REQUIREMENTS
EFFLUENT CHARACTERISTICS
Monthly
. Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Locationl
Flow
1.00 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C2
30.0 mg/I
45.0 mg/I
Daily
Composite
E, I, U, D
Total Suspended Residue2
30.0 mg/I
45.0 mg/I
Daily
Composite
E, I
NH3 as N
Daily
Composite
E, U, D
Fecal Coliform (geometric mean)
200 / 100 ml
400 / 100 ml
Daily
Grab
E, U, D
Total Residual Chlorine
Daily
Grab
E
Temperature
Daily
Grab
E, U, D
Total Nitrogen (NO2 + NO3 + TKN)
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Chronic Toxicity3
Quarterly
Composite
E
Conductivity
1
Grab
U, D
Lead
219.0 pg/I
Weekly
Composite
E
Zinc
Monthly
Composite
E
Dissolved Oxygen
1
Grab
_ U, D
Footnotes:
1 Sample locations: E — Effluent; I - Influent;
U - Upstream at least 100 feet above the outfall, below the Delta Mills discharge; D - Downstream at NCSR 1282.
Upstream and downstream samples shall be grab samples. Instream samples shall be collected three times per week during June, July,
August & September and once per week during the remaining months of the year.
2 The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85%
removal).
3 Chronic Toxicity (Ceriodaphnia) P/F at 11.0%: January, April, July & October (see Part III, Condition G.).
•
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at
the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III Permit No. NC0026565
G. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent
versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 11.0% (defined as treatment two in the procedure document). The permit holder shall perform
quarterhi monitoring using this procedure to establish compliance with the permit condition. The tests
will be performed during the months of January, April, July and October. 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:
NC DENR / DWQ / Environmental Sciences Branch
4401 Reedy Creek Road
Raleigh, North Carolina 27607
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 Tor 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 Branch at the address cited above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring
will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, 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.
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.
QCL P/F Version 9/96

'Wednesday, May 13, 1998 Maiden NPDES Permit # NC0039594 Page: 1
Subject: Maiden NPDES Permit # NC0039594
Date: Mon, 27 Apr 1998 12:58:15 -0400
From: "Dana Folley" <dana [e-mail]> Internal
To: Charles Weaver <charles [e-mail]>
CC: Tom Poe <tom [e-mail]> , Dave Goodrich <dave [e-mail]> ,
John Lesley <John [e-mail]>
Charles, during my files review I discovered that the Town of Maiden's
NPDES permit NC0039594, signed July 24, 1995, and effective September 1,
1995, does not have the correct Part III for municipalities with
Pretreatment Programs. Can you please fix this like your did for
Ramseur (NC0026565)? Thanks. When you do, could you please include all
pages of the modification in my cc: if possible, including the entire
Part III itself (my cc: for Ramseur did not have the Part III, A-F, only
G) .
Thanks!
Dana Folley
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