NC0021881_Permit Issuance_20000615

NPDES DOCVNENT SCANNIN`: COVER SHEET
NC0021881
Lake Waccamaw WWTP
NPDES Permit:
Document Type:
Permit Issuance--;
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 15, 2000
This document is printed on reuse paper - ignore any
content on the re-srex-se side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens. Director
June 15, 2000
Mr. David Cotton
Town Manager
P.O. Box 145
Lake Waccamaw, North Carolina 28450
A7rA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Issuance of NPDES Permit NC0021881
Lake Waccamaw WWTP
Columbus County
Dear lvir. Cotton:
Division personnel have reviewed and approved your permit renewal application. Accordingly, we are
forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated December 6, 1983, and as subsequently amended.
If any parts, measurement frequencies or sampling requirements contained in this permit 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 in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and 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.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
_ required.
If you have any questions concerning this permit, please contact Ms. Jacquelyn Nowell at telephone number
[phone], extension 512.
cc: Central Files
Wilmington Regional Office/Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit
Technical Assistance & Certification Unit
Aquatic Toxicology Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
Sincerely,
ORIGINAL SIGNED BY
BILL REID
Kerr T. Stevens
Telephone [phone] FAX [phone]
VISIT US ON THE INTERNET @ ht1p://h2o.enr.state.nc.us/NPDES

Permit No. NC00218 81
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 provision 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,
Town of Lake Waccamaw
is hereby authorized to discharge wastewater from a facility located at
Town of Lake Waccamaw WWTP
on NCSR 1901
west of Lake Waccamaw
Columbus County
to receiving waters designated as an unnamed tributary to Bogue Swamp in the Lumber 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 July 1, 2000
This permit and authorization to discharge shall expire at midnight on July 31, 2004
Signed this day June 15, 2000
ORIGINAL SIGNED BY
BILL REID
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0021881
SUPPLEMENT TO PERMIT COVER SHEET
Town of Lake Waccamaw
is hereby authorized to:
1. Continue to operate an existing 0.400 MGD activated sludge, extended aeration
wastewater treatment facility consisting of a bar screen, grit chamber, extended
aeration basin with two floating mechanical aerators, clarifier with return
activated sludge, two polishing ponds in series with one mechanical aerator,
gaseous chlorine contact chamber, continuous recording flow meter, two aerated
sludge holding tanks, and one emergency back-up sludge drying bed located at
Town of Lake Waccamaw WWTP, on NCSR 1901, west of Lake Waccamaw,
Columbus County, and
2. Discharge from said treatment works at the location specified on the attached map
into an unnamed tributary to Bogue Swamp, which is classified C-Swamp-waters
in the Lumber River Basin.

•••
•
- .
* -
..... -L. —,
-!..L'' .s1:._ 1 --•
7C.• '. --4'. --.
. -
ir • ..f..v... -4- --- - 4
•;-• . ,
ii _-
...,...
-.-...,...: _, ...,
--_..71..--- i'CL-- ":' • -.1'-'-•-h4-"-- - ..-- • -- — -414: - .... .41‘... --
Facility Information
Latituie: 34°16 56'
Lorgituzle: 78°33 28"
Q #: 324SE
Stream Class C-Swarrp
Receivirg Stir UT Bogie Swamp
Permitted Flow: 0.4 MGD
Stb-Basirr 03-07-56
North
. ;
• -"21-6'.
. .
Lallz Waozarmw WWTP
NC0021881
Cabs County

F r f. IS s J w
A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0021881
During the period beginning on the effective date of the permit and lasting u expiration, the Permittee is authorized to discharge from outfall(s) serial number
001. Such discharges shall be limited and monitored by the Permittee as ecified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow
0 M
Continuous
Recording
1 or E
BODs2 (April 1 — October 31)
11.0 m /I
16.5 mg/I
Weekly
Composite
E,I
BOD52 (November 1 — March 31)
10.0 mg/l
15.0
Weekly
Composite
E,1
Total Suspended Solids2
3 .
45.O-mg/I .
Weekly
Composite
E,1
NH3-N (April 1 — October 31)
2.0 mg/1
I
Weekly
Composite
E
NH3-N (November 1 — March 31)
4.0 mg/1
�L(�tc
Weekly
Composite
E
Dissolved Oxygen3
; -0--) "r 'W'
Weekly
Grab
E
Dissolved Oxygen3
`
See Note 1
Grab
U,D
Fecal Coliform (geometric mean)
(200/100 ml
400/100,mI-2
OP
Weekly
Grab
E
pH4
c13Rr
rr—
3/Week
Grab
E
Total Residual Chlorines
\\
2/Week
Grab
E
Temperature
41
Daily
Grab
E
Temperature
/
See Note 1
Grab
U,D
Total Nitrogen
Quarterly
Composite
E
Total Phosphorus
7
Quarterly
Composite
Chronic Toxicitys
/,
Quarterly
Composite/
, E
Notes:
g, a, /c,n 5 c
Sample Locations: E - Effluent, I — Influent, U — Upstream at least 100 feet above outfall, D - Downstream at least 300 feet from discharge. Upstream and downstream
monitoring is to be conducted three times per week during June, July, August, and September, and once per week during the rest 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 The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/I.
4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
s Monitoring requirement applies only if chlorine is added for disinfection.
6 Chronic Toxicity (Ceriodaphnia) P/F at 90 %; March, June, September, December. See Special Conditions A(2) of the Supplement to Effluent Limitations.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
-u-s
Js.fa,4_(0J;\t1)

Permit No.. NC0021881
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (2). CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or
significant mortality to Ceriodaphnia dubia at an effluent concentration of 90.0%. .
The permit holder shall perform at a minimum, quartertu monitoring using test procedures
outlined inl the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised
February 1Ii998, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions. The tests will be
performed efluring the months of March, June, September, and December. Effluent sampling for
this testing shall be performed at the NPDES permitted final effluent discharge below all
treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed at a minimum,
in each of the two following months as described in "North Carolina Phase II Chronic Whole
Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean
of the highest concentration having no detectable impairment of reproduction or survival and
the lowest 'concentration that does have a detectable impairment of reproduction or survival.
The definition of "detectable impairment," collection methods, exposure regimes, and further
statistical methods'are specified in the "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicitytesting results required as part of this permit condition will be entered on the
Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed,
using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value.
Additionally, DWQ Form AT-3 (original) is to be sent to the following address:
-- Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch
no later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements
and all concentration/response data, and be certified by laboratory supervisor and ORC or
approved designate signature. 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 Branch at the
address cited above.

Permit No. NC0021881
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
(continued)
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
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.

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF NEW HANOVER
PLBI_iC NOTICE"
STATE Of NORTH CAROLINA
EtNRNROeM ENTAL I MAGE1, NT
1617• MACECENTER
RALEIGH, NC 27699-1617
NOTIFICATION OF INTENT
TO ISSUE A NPDES
WASTEWATER PERMIT
On the basis of thorough staff re-
view and application of NO General '
Statute 143.21, Public law 92-500 '
and other lawful standards and ,
regulations, the North Carolina Envi- •
ronrnental Management Convnis-
lion proposes to issue a National -
Pollutant Discharge Elimination .
System (NPDES) wastewater dis-
8) listed
charge aattached mit to the
P gee effective 45
days from the publish date of thie i
Notice.
Written comments regarding the
proposed permit will be accepted
until 30 days after the publish data
of this notice. Alt..comrner a re-
ceived prior to that date are consid-
ered in the final determinations re-'
gardiwg the proposed permit. The
Di actor of the Ne'T b iatiR4' of Water
Quality may decide to hold a r�+c
m etieg for the proposed permit
should the Division receive a signifi-
cant degree of public interest.
Copies of 'the draft permit and
other supporting information on file
used to determine conditions pres-
ent in the draft permit are available
upon request and payment of the
costa of reproduction. Mail com-
rnente and/or requests for informa-
tion to the NC Division of Water
Quality at the above address or call
Me. Christie Jackson at (919) 733-
5083, ext. 538. Please include the
NPDES permit nurriber (attached) in
any communication. Interested per -
eons may also visit the Division of
Water Quality at 512 N. Salisbury St,
Raleigh, NC 27604-1148 between
the hours of 8:00 a.m. and 5:00 p.m.
to review information on tile.
NPDES Permit No. NC0021881,
Lake Waccamaw, Town -WWTP P.O.
Box 145, Lake Waccamaw, NC
28450 has applied for a permit re-
newal for a facility located in Co-
lumbus County discharging waste-
water into UT Bogue Swamp in the
Lumber River Basin. Currently
80D5, NH3, Dissolved Oxygen, aad
fecal cordorrn are water qeM y lim•
-
ited. This discharge mug -air" fu-
ture allocations in this portion of the
receiving stream.
Before the undersigned, a Notary Public of Said County and State,
JULIE JONES
Who, being duly sworn or affirmed, according to the law, says that he/she is
CLASSIFIED ADVERTISING MANAGER
of THE WILMINGTON STAR -NEWS, INC., a corporation organized and doing business under
the Laws of the State of North Carolina, and publishing a newspaper known as WILMINGTON
MORNING STAR & SUNDAY STAR -NEWS in the City of Wilmington
PUBLIC NOTICE STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT
COMMISSION/NPDES UNIT 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617
NOTIFICATION OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT On the basis
of thorough staff review and application of NC Gen
was inserted in the aforesaid newspaper in space, and on dates as follows:
4/7/00,1x
And at the time of such publication Wilmington Star -News was a newspaper meeting all the
requirements and qualifications prescribed by Sec. No. 1-597 G.S. of N.C.
9 +'mot
1- 62,,, '�ve:4 ;,,,.�f
Title: CLASSIFIED ADVER. MGR
Sworn or affirmed to, and subscribed before me this 1 1 t h day of
APRIL >A•D•, 2000
In Testimony Whereof, I have hereunto set my hand and affixed my official seal, the day and
year aforesaid.
My commission expires
422
27day of JULY ,20_04
Notary Public
Upon reading the aforegoing affidavit with the advertisement thereto annexed it is adjudged by the Court that the said
publication was duly and properly made, and that the summons has been duly and legally served on the defendant(s).
This day of
MAIL TO:
DE'RR - WATERNAM(
POINT SOURCE BRANII
Clerk of Superior Court

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - October 31) Permit No. NC0021881
During the period beginning on the effective date of the permit and lasting until expiration, the Perniittee is authorized to discharge from outfall
serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Discharge Limitations
Monthly Avg.
Flow 0.400 MGD
BOD, 5 day, 20°C" 11.0 mg/1
Total Suspended Residue** 30.0 mg/I
NH3 as N 2.0 mg/I
Dissolved Oxygen"'
Fecal Coliform (geometric mean) 200.0 /100 nil
Total Residual Chlorine
Temperature, °C
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
pazugtray_.---
Weekly Avg. Daily Max
16.5 mg/I
45.0 mg/I
400.0 /100 ml
Monitoring
Measurement
Frequency
Continuous
Weekly
Weekly
Weekly
Weekly
Weekly
2/Week
Daily
Quarterly
Quarterly
Requirements
SamQle
Type
Recording
Composite
Composite
Composite
Grab
Grab
Grab
Grab
Composite
Composite
G ra
`Sample
Location
I or E
E, I
E,I
E
E,U,D
E,U,D
E
E
E
E
* Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge, D - Downstream at least 300 feet from discharge.
Upstream and Downstream monitoring is to be conducted three times per week during June, July, August, and September, and once per week
during the rest of the year.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value
(85% removal).
***The daily average dissolved oxygen effluent concentration shall not be ss than 6.0 mg/l.
**** Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September and December; See fart III, Condition E.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 March 31.) Permit No. NC0021881
During the period beginning on the effective date of the permit and lasting until expiration, the Perrreittee is authorized to discharge from outfall
serial number 001. Such discharges shall be limited and monitored by the permiuee as specified below:
Effluent ChaLcutgristics
Discharge Limltatigns
Monthly Avg.
Flow 0.40 MGD
BOD, 5 day, 20°C** 10.0 mg/I
Total Suspended Residue** 30.0 mg/I
NI-t3 as N 4.0 mg/I
Dissolved Oxygen***
Fecal Coliform (geometric mean) 200.0 /100 ml
Total Residual Chlorine
Temperature, °C
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Cod
Weekly Avg, Daily_ Max
15.0 mg/I
45.0 mg/I
400.0 /100 ml
Monitoring Req.tjrements
Measurement Sample
f requensy Zype
C; Dntinuous
Weekly
Weekly
Weekly
Weekly
Weekly
2/Week
Daily
Quarterly
Clu�r rly
Recording
Composite
Composite
Composite
Grab
Grab
Grab
Grab
Composite
Composite E
*Sample
Location
IorE
E,I
E,I
E
E,U,D
E,U,D
E
E
E
* Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge, D - Downstream at least 300 feet from discharge.
Upstream and Downstream monitoring is to be conducted three times per week during June, July, August, and September, and once per week
during the rest of the year.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value
(85% removal).
*** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/I.
Chronic Toxicity (Ceriodaphnia) P/F at 90%; March, June, September and December; See Part ilt, Condition E.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall he monitored 3/week at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

, p,
DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPME
NPDES No. NC0021881
Facility Information
Applicant/Facility Name:
Town of Lake Waccamaw WWTP
Applicant Address:
P.O. Box 145 Lake Waccamaw, NC 28450
Facility Address:
NCSR 1901, Lake Waccamaw, NC 28450
Permitted Flow
0.4 MGD
Type of Waste:
100% Domestic
Facility/Permit Status:
Renewal
Facility Classification
II (changed in April 1996)
County:
Columbus
Miscellaneous
Receiving Stream:
UT Bogue
Swamp
Regional Office:
Wilmington
Stream Classification:
C-Swamp
USGS Topo Quad:
J24SE
303(d) Listed?:
No
Permit Writer:
Jackie Nowell
Subbasin:
03-07-56
Date:
January 5, 2000
Drainage Area (mi2):
<0.1
Sew 1
ir
O
Summer 7Q 10 (cfs)
0
Winter 7Q10 (cfs):
0
Average Flow (cfs):
<0.1
IWC (%):
100
Primary SIC Code:
4952
SUMMARY OF FACILITY AND WASTELOAD ALLOCATION
See attached notes
TOXICITY TESTING:
Current Requirement: Chronic P/F ® 90% at 0.4 MGD using Ceriodaphnia
No change to the toxicity testing condition is recommended at this time. This facility has
passed all toxicity tests since October 1995.
COMPLIANCE SUMMARY:
See attached notes
INSTREAM MONITORING:
See attached notes
PROPOSED CHANGES:
Recommend deletion of upstream and downstream monitoring for conductivity.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: 01/26/2000
Permit Scheduled to Issue: 03/13/2000
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please
contact Jackie Nowell at [phone] ext. 512.
z/6/aD
Lake Waccamaw WWIP Tact Sheet
NPDES Renewal
I'a i.t;e 1

REGIONAL OFFICE COMMENT:
See A Ho, +c-L,I StPP 12eport-
NAME: Cl A ( c., /.I�l.� .; L L . DATE: o -3 r Z 7 Cam?
EPA REGION IV COMMENT:
NAME: DATE:
Lake Waccamaw WWTP Fact Sheet
NPDES Renewal
Page 2
1i

Permit Notes
NC0021881
The Town of Lake Waccamaw is requesting renewal of existing permit. The facility
discharges to UT Bogue Swamp, which has a 7Q10 and 30Q2 = 0 cfs. This segment is
not listed on the 1998 303(d) list. The stream classification is C Swamp. The plant has a
design capacity of 0.4 MGD. Current limits are as follows:
BOD5 11 mg/I (summer)
BOD5 10 mg/1 (winter)
NH3 2 mg/1 (summer)
NH3 4 mg/1 (winter)
TSS 30 mg/1
DO 6 mg/1
Fecal 200/100m1
Chlorine monitor
Chronic Toxicity at 90%, (MAR JUN SEPT DEC)
The Lake Waccamaw WWTP appears to be a well operated plant. They have
consistently met most limits during the period of 1997 through 1999. A review of DMR
data indicates that except for violations of the flow, TSS, and pH limits in 1998, the Lake
Waccamaw plant is in good condition. There were two flow violations in Jan, Feb. 1998
SS in May 1998 and pH in Jan 1998. The more stringent limits for BOD5, NH3 and
DO have been met by the facility for the protection of water quality. There have been no
exceedances of these parameters.
The facility has a chronic toxicity test @ 90%, due to discharging into a zero flow
stream. The Town had serious problems passing the tox test in 1995, when eight of the
first nine tests were FAILs. Corrections were made and Lake Waccamaw has passed all
toxicity tests since October 1995.
A review of instream data indicates that water quality is being protected. Only in
September 1998 was the instream average for DO less than 5 mg/l. August and July
1998, the instream average DO was 5.0 mg/1. These values should be viewed carefully,
considering that UT Bogue Swamp has a C Swamp classification and swamp stream
often have naturally low DO values. In most cases, when downstream DO was <5 mg/1,
upstream DO values were also <5 mg/1. Therefore it did not appear that the Lake
Waccamaw discharge was the reason for the substandard DO in those instances.

Permit Notes
NC0021881
Page 2
Staff report in 1995, indicated that alternatives to discharge were not really
available: "1) no regional sewer system available, 2) soils not suitable for spray irrigation
or 3) subsurface disposal due to a perennial high water table." There is no documentation
that an alternatives analysis was ever requested from the Town by DWQ.
Conferred with D. Goodrich and his recommendation (based on the facility's
record of icompliance and the previous review of discharge alternatives by the Regional
Office), v'as do not request an alternatives analysis from Lake Waccamaw. The facility
is in effect a "regional system" within itself based on its location.
Recommend renewal of NPDES permit including chronic toxicity test, with
all limits except the deletion of instream monitoring for conductivity.

SOC PRIORITY PROJECT: NO
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Jackie Nowell
(Review Engineer)
Date: March 22, 2000
NPDES STAFF REPORT AND RECOMMENDATION
County: Columbus
Permit No. NC0021881
PART I - GENERAL INFORMATION
1. Facility and Address:
Town of Lake Waccamaw WWTP
P.O. Box 145
Lake Waccamaw, North Carolina 28450
2. Date of Investigation: March 16, 2000
3. Report Prepared by: Russ Colby
4. Persons Contacted and Telephone Number:
Rex Ballard, Operator 910.646.4397
e&rtf,"904.-
MAR 2 4 2000
DENR - WATER QUALITY
POINT SOURCE BP.ANCH
5. Directions to Site: Hwy 74/76 to Lake Waccamaw, take SR 1900 west to SR 1901,
approx. 0.5 miles on right is a dirt road. Treatment plant is at the end of the dirt road.
6. Discharge Points (s), List for all discharge points:
Latitude: 34° 16' 56" Longitude: 78° 33' 28"
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No: S-47 U.S.G.S. Quad Name: Lake Waccamaw West
7 Site size and expansion area consistent with application?
N/A
8. Topography (relationship to flood plain included): 45 feet above msl

9. Location of nearest dwelling: Approx. 0.5 miles
10. Receiving stream or affected surface waters: UT Bogue Swamp
a. Classification: C-Swamp
b. River Basin and Subbasin No.: 03-07-56
c. Describe receiving stream features and pertinent downstream uses: Swamp
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 0.400 MGD
b. What is the current permitted flow limit: 0.400 MGD
c. Actual treatment capacity of the current facility: 0.400 MGD
d. Date (s) and construction activities allowed by previous Authorizations to
Construct issued in the previous two years: N/A
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The existing facility is an activated sludge, extended aeration
plant consisting of bar screen, grit channel, extended aeration basin with two
floating mechanical aerators, clarifier with return activated sludge, two polishing
ponds in series, with one mechanical aerator, gaseous chlorine contact chamber,
continuous flow recording, two aerated sludge holding tanks, and one emergency
backup sludge drying bed.
f. Please provide a description of proposed wastewater treatment facilities: No
planned upgrades at this time.
g.
Possible toxic impacts to surface waters: Chlorine and Ammonia
h. Pretreatment Program (POTWs Only):
in development
should be required
approved
not needed X
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify:
Permit No. WQ0000783
Residuals Contractor: S & B Maintenance
Telephone No.: 910.250.4680

b. Residuals stabilization:
PSRP X PFRP Other
c. Landfill: N/A
d. Other disposal/utilization scheme (Specify): N/A
3. Treatment plant classification (attach completed rating sheet): Class II
4. SIC Code (s): 4952
Wastewater Code (s) Primary: 01 Secondary: N/A
Main Treatment Unit Code: 055X3
PART III - ;OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
(municipals only) involved: N/A
2 Special 1 monitoring or limitations(including toxicity)requests: None
3. Important SOC, JOC or Compliance Schedule dates: None
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge
options available? Please provide regional perspective for each option evaluated:
SprayIrrigation: Soils in area are not suitable for spray irrigation
Connection to Regional Sewer System: No regional system available
Subsurface: Soils in area are not suitable for subsurface disposal
Other disposal options: None
5. Other; Special Items: None
PART IV - EVALUATION AND RECOMMENDATIONS
The Town of Lake Waccamaw has a severe I and I problem in the collection system, and
is actively working to resolve that situation. The Town is currently in compliance with
permit limits.

It is recommended that a draft permit be prepared and placed at public notice. If no
significant adverse public comment is received, it is recommended MPDES Permit No.
NC0021881 be reissued to the Town of Lake Waccamaw in accordance with the basin -
wide permitting strategy.
Signature of Report Preparer
03%ZZ%0
Date
Water Quality Regional Supervisor Date
GRC: S:\NC0021881.03 0
cc: Wilmington Regional Office
Technical Support Branch
Central Files

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".Alt ,11( MA
hoodoo Northside 1V1VTI. PERM (1 IR 1.1M: 2.49. 1995 Fail Pass Pass Pass
emilluent 1 uxiCity I eStilly ell-ivioilitOtiily t.liiiiitary
N(0024230811 nog itrld1/1994 I:town:no y O PO' i Jan Apr Jol ( As NonContp.SINtil li i 999 Pass NI el'ass Pass
t ...telly. 1.1111./11 gqiell. WAK( / tielkkee11. NI( 105 19117 Pass Pass Pass Pass
PF .1 5 sow./ 1999 l'abs Pa, l'055 4'.%55
?QUI 2143.1 IWC('A ) 2. 4 1999 Pass l'esh 1...44
Kinstm4'estrldree 191% FP PERM CIllt 1.1h1. 1.54 t 995 .. - Pass Pass Pass Pass
Nt '0101541AM liegin.5/1/1994 Flown:tit.) o WI' t l'on May Aug Noy NonCiottp.SIN(d 1: t tou, - • Pass p,,,,, isiss NIL Pass
t .tat) 1.tettii Itegikat. WA110 Sabha:an. NEU95 1597 •-• Pass Pass NI Vl'ass Pass
Pl. 6 75 I 998 --. NI VPass l'aSS Pass Pass
71j1(1 292 8 1WCPA ).3 5 1999 - Pass Pass Pass
14.1.11/e Copper Products, Inc. Pot" do lin) 34,4 1995 Fad Pass Pass Pass Pass
M110351738/01 Begin:2/1/1997 Frequency: (2 WV i Jan Apt Jul t AA NotiColop Siliglo 1996 1 ad Pass Pass lass Fad Pass
l'outity: Stokes Region: WSRO Sulthasan: ROA01 1997 Fad Pass l'ass I ail Pass Pass
Pi': 0.025 Spoon/ 1998 Pass- - Pass Pass Pass
71110. 0.075 IWC('A g34.05 1999 Pass Pass Pass
Koch Relining C.o. LP:North Te ttttt nal Perm 241, pri an Init. 901 1995 Passl NWPass Pass Pass
st 0010732/001 014111M/1/1996 Begot:4.4:Q r Jan Apr Jo tkt Noncom', Single 1996 Pass 101.1"ass Pass Pass
l ,,,Itity• New ilmiovr itcgior wiKo Subt,..iii: cru 17 11197 Pass NIVPass l'ass 191391
18: 0.1 spools! 1998 Pass Y.181 Pass Pass
7(110: Tidal 11V(VA y.NA 1909 Pass Pass Pass
Lake 1VaCCIIIII3W WWI PERM (IIR LIM: 90'4 t 995. _ Fail Fall Fad Fail 1.atl 1 ail lad Payt Fad Passist Ill::: ipip
1 00111), Columbus .; Rogion WIRO Sohhasitr. AtiA156 ...••• Pass Pass
MAW 18811001 Regin,11/1/1995 l'icqucticy: Q 1./1: 4 Mat Jen Sup Dee N,)90.1111 SINGLE ,9 1996 ••• p,,, i ate Pass Pass
l'1' 0.4 Sieoal 1998 - Pass Pass Pass
7Q10: 0 0 IWC(54 I:100 ,,, Pass
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Lattrinburg Manton rp Aiort.l.aurel Hill Perm chr Inn: 1 iti. (New verso 12/1/)91 V 1995 -- F'et.s l'o, Fell Pes5 Pass
IsC0005479/001 Bog nail/1995 Frequency. Q PO' r Alu Jun Sop Doc NotiCotitlySinglo Pass t ate Pass Pass Pass
County: Scotland Region: FRO Subbasist: AMASS 1997 .:- Pass Pass Late Pass late
PE0.3 Special t 99n NMI Pass II NMI Pass Pass
7Q10: 31 0 11V(7(% A1.5 1999 --• Pass In Ell
Lnurniburs WWII" PERM CI18 LIM: 3PA Pass Pass l'asS ,,,„
NC (1020656/091 Ilegiiel/1/1993 Ft equency: Q 191‘ 4 Fol. May Aug Nt iv Nod: ttttt p: SINGLE l'esS Pass Pass , ..,,i Pass
1 ...ley: Setilluiitl Rev it'll MO Sulatte.itE1.1.1N155 1997 .-- Pass Pass Pass Pass
l'F 4 0 Sitmtal P498 -•• Pass Pass Pass Pass
71410: 13.8 IWC(q ):31 1999- Pass late l'ass Fall Fall
Lautlithurg-Alastion Airport Perm chr linc I 1.4: it pi 2151(11) do lin. 2 WA V 1995 ..- Pass Pe1.5 F'ass F'ass
N0044725/001 1*41102/1/1998 hequency:Q P/1' r Mar JUR Sop lko r NiottCompngle 1(76 •-• p455 I ate PgISS PaSS Pass
County: Scotland Kegitot: WI) Subbasul:IAIM51 1997 .•- Pass Pass Pass Pass
PI' 1.0 5poruil 1998 -•- PeSS PaSS Pass Pass
7Q10: 1* 11) 11V1'1'41:1.311 l'ass 111 Pass
*,('I'Plastics, Inc. Perm chr lint: 90'1 ((halo 1995 . • l'es5 11454 Fad NIVPass Fail,Pass
MA030366/001 llogin:411/1996 l'ioquency; Q PO: r Foh Alay Aug Nov Nord:tulip:Singh: 1999 •-• Nit/Pass 1 ad I ad lad Pass Pass
( Li ,unty: Guillind Region: WSRO Suldiasin:(718:0k1 1997 -- Pass Pass 11 rillii
11'. NA Special 1998 -.- PI 11 11 11
7010: 0 DO 1W( TA 1100 1999 --• Pass Pass Fa4 Passstu
Leland Industrial Park WWII' Point 24hr p/I us lim: 90'A WO 1995 •-• Fad' 1111.11i1431 l'ilSAI ND Pass Pass
NC0065676/001 liogin:9/1/1996 Froquotoy:Q 4- Mai Jun Sep Doc NiniComp Single 1990 •-• ... Pass Pass Pass 1 3141 all
Coultly: UNIV. id Region: WIRO Subbasin: C1'117 1997 Fail Fad 1 all 1 all loll Pass Pass Nit I a/
Pr: 0.25 Sieewl 1998 NH N11 Pass Fall 1 all Pass Pass 1 ad
7Q I 0: WO IWC(% 10.065 1999 Fail Fail lall Pass Pass P453
1.1:11011.- (.11111 ttttt licl' ( rock WiiV'EP 1.01i1 lb, lint 5.1'4 1995 - Pass Pass Pass F ad
00117710/001 lit:gm:5/1/1995 Flomicitcy.Q PA: t Al. 11111Si:1+ Ike NonCintip:Singlo mint Pass Pass 1.45 Fad tilli Pass 1.11e
Onetly (.11Iti.cl1 1414.IIIII: AM) Stilta hme: CTIll 1997 NI Vl'ass Pass Pass -Pass t ate
1'1 2 sp....tat 1999 Pass Pass l'ass Pass Pass
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28 ticoJoil

Lake Waccamaw WWTP 10/99-4/99 summer
Upstream
Month Temp DO Saturation Fecal Conductivity
Oct-99 20 7.4 81% 1.7 17.5
Sep-99 24 6.2 74% 8 29.0
Aug-99 28 5.1 65% 6.5 31
JuI-99 28 5.6 72% 25 30
Jun-99 25 6.5 79% 26.8 30
May-99 21 8.1 91% 5.6 30
Apr-99 19 8.9 96% 4 30
Mar-99 0%
Feb-99 0%
Jan-99 0%
Dec-98 0%
Nov-98 0%
tk A11 Lac tc�<< .g+ C/. c IC (,e,4d n►
P cS
Downstream
Temp DO Saturation Fecal Conductivity
19 7.3
79%
2.1 17.5
24 6.2
28 5.1
28 5.7
25 6.5
21 7.9
18 8.9
74%
65%
73%
79%
30 29.0
20.9 31
15 30
13.5 30
89% 11.9 30
94% 11.2 30
0%
0%
0%
0%
0%
/ bvt4timie36,Ld (4i7✓h : (J4ccfrAih rJ Zvc_
NC0021881

Lake Waccamaw WWTP
10/98-4/98 summer
Upstream
Month Temp DO Saturation Fecal Conductivity
Oct-98 21 6.0 67% 5.6 32
Sep-98 27 4.7 59% 30 30.0
Aug-98 28 5.1 65% 11.2 29
JuI-98 30 5.2 69% 14.5 37
Jun-98 29 5.7 74% 13.2 53
May-98 24 7.8 93% 20.6 40
Apr-98 20 8.3 91 % 10 40
Mar-98 0%
Feb-98 0%
Jan-98 0%
Dec-97 0%
Nov-97 0%
Downstream
Temp DO Saturation Fecal Conductivity
21 5.6 63% 6.4 32
26 4.5 55% 26 29.0
28 5.0 64% 16.3 27
30 5.1 67% 17.7 36
29 5.2 68% 17.7 52
24 7.3 87% 17.3 40
19 8.0 86% 26.2 38
0%
0%
0%
0%
0%
NC0021881

Lake Waccamaw WWTP 10/97-4/97 summer
Upstream
Month Temp DO Saturation Fecal Conductivity
Oct-97 21 8.3 93% 19 51
Sep-97 25 7.6 92% 18 48.0
Aug-97 27 6.7 84% 11.6 56
JuI-97 29 6.3 82% 39 50
Jun-97 24 7.1 84% 55 48
May-97 23 8.1 94% 8.6 43
Apr-97 19 9.8 106% 7.2 39
Mar-97 0%
Feb-97 0%
Jan-97 0%
Dec-96 0%
Nov-96 0%
Downstream
Temp DO Saturation Fecal Conductivity
19 7.1 77% 71.8 377
24 7.3 87% 25 431.0
24 6.3 75% 43.6 442
25 6.2 75% 14 421
22 6.8 78% 10.9 355
19 9.6 104% 44 320
18 10.1 107% 2.6 358
0%
0%
0%
0%
0%
NC0021881

The Town of Lake Waccamaw has two (2) sludge holding facilities at the Wastewater
Treatment Plant. The sludge is pumped into the holding facilities where it is de -watered
until we are ready to land apply. Before the land application is made we will meet the
requirements of the EPA 40 CFR part 503 regulations by adding 100 pounds of lime to
approximately 28,000 gallons of sludge in each digester. The lime will be mixed into the
sludge using the air diffusers in the holding tanks, raising the PH to 12 or higher. The PH
level will confirmed using a Hatch handheld PH meter. The sludge will be held at the
high PH level for at least 72 hours before removing it for land application.