NC0088781_NPDES Permit_20110914

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NCDENR SEP 1 9 2019
North Carolina Department of Environment and Natural Resources DWQ
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September 14, 2011
Mr. Don Betz, Executive Director
Lower Cape Fear Water and Sewer Authority
1107 New Point Boulevard; Suite 17
Leland, NC 28451
Subject: Draft NPDES Permit NC0088781
Baden Bluffs Regional Surface Water Treatment Plant
Facility Class PC-1
Bladen County
Dear Mr. Betz:
Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very
carefully to ensure thorough understanding of the conditions and requirements it contains.
The draft permit includes a number of changes in the monitoring requirements from those found in your
current permit. These changes were made as part of the implementation of a modified NPDES strategy
for wastewater discharges from conventional water treatment plants, which are being implemented
throughout the state as permits are issued and/or renewed. A summary of these changes follows:
• The Flow limit has been removed from the permit.
• Effluent monitoring for Turbidity has added to the permit with a weekly monitoring frequency.
• Monitoring requirements for Calcium and Magnesium have been removed from the permit.
• The monitoring frequencies for Total Copper, Total Iron, Fluoride and Total Zinc have been reduced
to quarterly. Quarterly monitoring should be performed to coincide with whole effluent toxicity
testing.
• A condition has been added that will allow the permit to be reopened for the purpose of requiring
additional nutrient monitoring of the discharge to support water quality modeling efforts within the
Cape Fear River Basin.
• The effluent limit for Total Residual Chlorine (TRC) has been lowered from 28 µg/L to 17 µg/L.
Please note that the permit still retains the same footnote language stating reported TRC values of
less than 50 µg/L will be deemed compliant with the terms of the permit.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity1 Affirmative Action Employer
NonrthCarolina
Naturally

Mr. Don Betz
NC0088781 Renewal Draft
p. 2
E
Submit any comments to me no later than thirty days following your receipt of the draft. Comments
should be sent to the address listed at the bottom of this page. If no adverse comments are received from
the public or from you, this permit will likely be issued in November 2011, with an effective date of
December 1, 2011.
If you have any questions or comments concerning this draft permit, call meat [phone], or
contact me via e-mail at [e-mail].
Sincerely,
5
Bob Sledge
Compliance & Expedited Permits Unit
cc: NPDES Files
Central Files
Fayetteville -Reg -oral O-ffialSurface Water Protection Section
ec: TACU
yP

Permit NC0088781
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Lower Cape Fear Water and Sewer Authority
is hereby authorized to discharge wastewater from a facility located at the
Bladen luffs Regional Surface Water Treatment Plant
NC Highway 87
Tar Heel
Bladen County
to receiving waters designated as Unnamed Tributary to the Cape Fear River in the Cape Fear River
Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on October 31, 2016.
Signed this day
DRAFT
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0088781
SUPIPLIEMENT. T 1► PERMIT COVE
SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, tends, and provisions included herein.
The Lower Cape Fear Water and Sewer Authority
is hereby authorized to
1. After completion of construction, and after submitting an Engineer's Certificate, to discharge
treated filter backwash wastewater from a conventional water treatment plant that includes the
following wastewater treatment components:
© Two Residuals Basins for settling/ decanting
e One Recycle Pump
© Dechlorination
This facility is located at the Bladen Bluffs Regional Surface Water Treatment Plant, off NC
Highway 87, north of Tar Heel, in Bladen County.
2. Discharge from said treatment works at the location specified on the attached map into an unnamed
tributary to the Cape Fear River, class C waters of the State in the Cape Fear River Basin.

Permit NC0088781
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Bladen Bluffs Regional WTP - NC0088781
.y.., k
Facility
USGS Quad Name: Duart, K22NE
Receiving Stream: UT Cape Fear River
Lat.: 34° 45' 53"'
Long.: 78° 48' 16"
Location
Stream Class:. C
Subbasin: Cape Fear - 03-06-16
North
Bladen County

Permit NC0088781
A. (le) EFFLUENT LIMITATIONS AND MONETO I" I NG REQUIREMENTS EMJENTS - DRAFT
During the period beginning on the effective date of the permit and lasting until expiration, the
Peiiiuttee is authorized to discharge wastewater associated with the water treatment plant and overflow
from the raw water spillway from Outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
Effluent Characteristics
Limits -
:Monitoring Requirements
Parameter Code
. _ , .
Monthly ;
"
Average .
`-, ally'
Maximum
.
Measurement .
FreNuency :_
` �
Sample Type
Sample .'
Location '
Flow 50050
Continuous
Recording
Effluent
Total Suspended Solids C0530
30.0 mg/L
45.0 mg/L .
Weekly
Grab
Effluent
Total Residual Chlorine1 50060
17 µg/L
Weekly
Grab
Effluent
pH 00400
>_ 6.0 s.u. and <_ 9.0 s.u.
Weekly
Grab
Effluent
Turbidity 00076
Weekly
Grab
Effluent
Aluminum 01105
Quarterly2
Grab
Effluent
Manganese 01055
Quarterly2
Grab
Effluent
Fluoride 00951
Quarterly2
Grab
Effluent
Total Zinc 01092
Quarterly2
Grab
Effluent
TotelIron 01045
Quarterly2
Grab
Effluent
Total Copper 01042
Quarterly2
Grab
Effluent
Ammonia Nitrogen C0610
Quarterly2
Grab
Effluent
Total Phosphorus (TP) C0665.
Quarterly2
Grab
Effluent
Total Nitrogen (TN)3 C0600
Quarterly2
Grab
Effluent
Whole Effluent Toxicity Monitoring4 TGE6C
Quarterly
Grab
Effluent
NOTES:
1. The Division shall consider all effluent TRC values reported below 50 ug/1 to be in compliance with the
permit. However, the Permittee shall record and submit all values reported by a North Carolina certified
laboratory (including field certified), even if these values fall below 50 ug/1.
2. Monitoring should be performed in conjunction with toxicity testing.
3. TN means Total Nitrogen. For a given wastewater sample, TN is the sum of Total Kjeldahl Nitrogen and
Nitrate -Nitrite Nitrogen: TN = TKN + NO3-N + NO2-N.
4. Acute Toxicity (Fathead Minnow) Monitoring at 90%: February, May, August, and November [see
Condition A.(2)] and sampling should coincide with sampling for parameters covered by footnote 2.
All samples collected should be representative of the discharge.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
There shall be no discharge of waste or chemicals that do not directly result from the responsible treatment of raw water.
The discharge ditch shall be lined to prevent erosion and washing of soil and silt to the river.

Permit NC0088781
A.(2.) ACUTE TOXICITY MONITO ' INO (QUA !' TERILY)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity
In A Single Effluent Concentration" (Revised -July, 1992 or subsequent versions). The monitoring shall
be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test. The effluent
concentration at which there may be at no time significant acute mortality is 90% (defined as treatment
two in the procedure document). Effluent samples for self -monitoring purposes must be obtained
during representative effluent discharge below all waste treatment. The, tests will be performed during
the months of February, May, August and November.
The parameter code for Pimephales promelas is TGE6C. All toxicity testing results required as part of
this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it
was performed, using the appropriate parameter code. Additionally, DWQ Form AT-2 (original) is to
be sent to the following address:
Attention: North Carolina Division of Water Quality
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 any month, the peiiiiittee will complete
the information located at the top of the aquatic toxicity (AT) test form indicating the facility name,
peiiiut 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 any test data from either these monitoring requirements 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
Form submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival 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.

Permit NC0088781'
A. (3.) PE
MIT RE -OPENS
NUTRIENT 1M ONITO
1'I
NG
Pursuant to N.C. General Statutes Section 143-215.1 and the implementing rules found in the North
Carolina Administrative Code at 15A NCAC 2H.0112 (b) (1) and 2H.0114 (a) and Part II sections B-
12 and B-13 of this permit, the Director may reopen this permit to require supplemental nutrient
monitoring of the discharge. The purpose of the additional monitoring will be to support water quality
modeling efforts within the Cape Fear River Basin and shall be consistent with a monitoring plan
developed jointly by the Division and affected stakeholders. In addition, the results of water quality
-modeling may require that limits for Total Nitrogen and Total Phosphorus be imposed in this permit
upon renewal.