NC0021881_More Information (Received)_20240402

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ON THE SHORES OF NORTH CAROLINA'S LARGEST NATURAL LAKE I1� A11
P.O. Box 145 '�
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Lake Waccamaw, North Carolina 28450 �
[phone]
[phone] Fax *AC G C%
March 27, 2024
Division of Water Resources
Water Quality Permitting Section-NPDES
1617 Mail Service Center
Raleigh,NC 27699-1617
RECEIVED
Subject: Request for NPDES Renewal APR 0 2 2024
NPDES Permit#NC0021881
Town of Lake Waccamaw N NCDEQ/DWR
Lake Waccamaw WWTP / PDES
Columbus County
Dear NPDES Unit:
The Town of Lake Waccamaw has previously submitted the renewal application package for NPDES #:
NC0021881. The permit expiration date is July 31, 2024. The renewal application package consists of:
• Cover letter
• Application Form 2A with tables A, B, and D
• Topographic map
• Plant Schematic
Attached to this cover letter are our required mercury readings that could not previously be submitted due
to us not having the results upon our permit renewal request. We apologize for an inconvenience.
If you have any additional questions, please contact Greg Milliken at 910-770-2523.
Sincerely,
l(g)Y42 (J14-t--
; Mayor
Town of Lake Waccamaw

Environmental Chemists, Inc.
envirochem 6602 Windmill Way,Wilmington,NC 28405 * 910.392.0223 Lab b 910.392.4424 Fax
710 Bowsertown Road,Manteo,NC 27954 * 252.473.5702 Lab/Fax
255-A Wilmington Highway,Jacksonville,NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL&CONSULTING CHEMISTS [e-mail]
Town of Lake Waccamaw Date of Report: Mar 27, 2024 1
PO Box 145 Customer PO#:
Lake Waccamaw NC 28450 Customer ID: 12080027
Attention. Report#: 2024-04097
Project ID: WWTP NC0021881 (weekly)
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
24-09471 Site: Influent-Composite 2/15/2024 11:00 AM Water Client
Test Method Results Date Analyzed
Residue Suspended (TSS) SM 2540 D-2015 108 mg/L 02/16/2024
BOD SM 5210 a-2018 94 mg/L 02/16/2024
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
24-09472 Site: Effluent-Composite 2/15/2024 11.00 AM Water Client
Test Method Results Date Analyzed
Ammonia Nitrogen EPA 3501,Rev,2.0,1993 0.5 mg/L 02/22/2024
Residue Suspended (TSS) SM2540D-2015 3.1 mg/L 02/16/2024
BOO SM 5210 8-2016 2 mg/L 02/16/2024
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
24-09473 Site: Effluent-Grab 211512024 10:55 AM Water Client
Test Method Results Date Analyzed
Fecal Coliform idexxC01i1er1-16 39 MPN/100m1 02/15/2024
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
24-09474 Site:Aeration Basin 2/15/2024 10 50 AM Solid/Sludge Client
Test Method Results Date Analyzed
MLVSS MLSSSM
EPA 160.4 4260 mg/L 02/20/2024
2540 D 5440 mg/L 02/20/2024
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
24-09475 Site: Blank 2/15/2024 Water Client
Test Method Results Date Analyzed
LL Mercury EPA 1631e <0.500 ng/L 03/14/2024
Reports_ 2024 04097 Page 1 of 2

Environmental Chemists, Inc.
envirochem 6602 Windmill Way,Wilmington,NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road,Manteo,NC 27954 • 252.473.5702 Lab/Fax
255 A Wilmington Highway,Jacksonville,NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL&CONSULTING CHEMISTS [e-mail]
Town of Lake Waccamaw Date of Report: Mar 27, 2024
PO Box 145 Customer PO#:
Lake Waccamaw NC 28450 Customer ID: 12080027
Attention Report#: 2024-04097
Project ID: WWTP NC0021881 (weekly)
Lab ID Sample ID: Collect Date!Time Matrix Sampled by
24-09476 Site: Effluent 2/15/2024 Water Client
Test Method Results Date Analyzed
LL Mercury EPA 1831e 1.54 ng/L 03/14/2024
Comment:
Reviewed by: n --
Report# 2024-04097 Page 2 of 2

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` Client:Pace Analytical Services,LLC Laboratory ID:ZC08004-003
Description:24-09475 Matrix:Aqueous
Date Sampled:02/15/2024 Project Name:LL Fig
Date Received:03/07/2024 Project Number:92717866
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E i 03/14/2024 1321 KAJ 03.13.2024 1104 98251
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 0.200 ng.L 1
LOQ=Unlit o'Ouarto:abort B=Detected,n the method plank E=Ouanbtanon of compound exceeded the calibration raege DL=Detectton I m•t 0=Sorrgate'acure
NO=Not detected at or above he DL N=Recovery,s out of cntena P=Tne RPO between two GC columns exceeds 40% J=Estimated result s 100 and x DL L -LCS LCSD fa ,re
H=Out of holding tune W=Rebored on wet weight bass S=MS MSC)fa,,re
Pace Analytical Services.LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia.SC 29172 [phone] Fax[phone] www oocelabs.com
Page 11 of 34
Page 7 of 30

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Client:Pace Analytical Services,LLC t ab:ratc•ry ID ZC08004-004
Description:24-09476 Matr x Aqueous
Date Sampted:0 2/1 512 0 2 4 Project Name:LL Hg
Date Received:03/07/2024 Project Number:92717866
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 03/14/2024 1327 KAJ 03'13:2024 1104 98251
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Mercury(CVAFS) 7439-97-6 1631E 1.54 0.500 0.200 ng/L 1
LOG=Limit of Ouantdaflon B=Detected in the method blank E=Quantization of compound exceeded the ca'ibration range DL=Detector Lim t Q=Surrogate fa.ure
NO=Nat detected at or above the DL N=Recovery s out of criteria P=The RPO between two GC columns exceeds 40.. J=Estimated rexutt c LOQ and>Ot L=LCS LCSO failure
H=Out of nold_ng time W=Reported on wet weight oasis S=MS.R4SD fa•vre
Pace Analytical Services.LLC (formerly Shealy Environmental Services.inc)
106 Vantage Point Drive West Columbia.SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 12 of 34
Page 8 of 30

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Environmental Chemist, Inc., Wilmington, NC Lab#94 6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Sample Receipt Checklist �1
Client: Let R .\L(e e r 1U.- a Date: 1 t 5)2-4 Report Number: 2 0"'t V CA 1
Receipt of sample: Echem Pick up,` ) Client Delivery 0 UPS 0 Fed Ex 0 Other 0
❑ YES ❑ NO 14 N/A 1. Were custody seals present on the cooler?
❑ YES .❑ NO N/A 2. If custody seals were present,were they intact/unbroken?
Original temperature upon receipt 3 .1 °C Corrected temperature upon receipt °C
How temperature taken: 0 Temperature Blank tin Against Bottles
IR Gun ID:Thomas Traceable S/N 192511657 IR Gun Correction Factor°C: 0.0
❑ YES 0 NO 3. If temperature of cooler exceeded 6°C,was Project Mgr./QA notified?
YES 0 NO 4. Were proper custody procedures (relinquished/received)followed?
YES 0 NO 5. Were sample ID's listed on the COC?
'; YES 0 NO 6. Were samples ID's listed on sample containers?
,' YES 0 NO 7. Were collection date and time listed on the COC?
yl YES 0 NO 8. Were tests to be performed listed on the COC?
J$I YES 0 NO 9. Did samples arrive in proper containers for each test?
l� YES 0 NO 10. Did samples arrive in good condition for each test?
$0 YES 0 NO 11. Was adequate sample volume available?'
YES 0 NO 12. Were samples received within proper holding time for requested tests?
YES ❑ NO 13. Were acid preserved samples received at a pH of<2? *
❑ YES 0 NO 14. Were cyanide samples received at a pH >12?
❑ YES 0 NO 15. Were sulfide samples received at a pH >9?
17l YES 0 NO 16. Were NH3/TKN/Phenol received at a chlorine residual of<0.5 m/L? **
❑ YES 0 NO 17. Were Sulfide/Cyanide received at a chlorine residual of<0.5 m/L?
❑ YES 0 NO 18. Were orthophosphate samples filtered in field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H2SO4 HNO3 HC NaOH
Time of preservation: _ If more than one preservative is needed, notate in comments below
Note:Notify customer service immediately for incorrectly preserved samples.Obtain a new sample or
notify the state lab if directed to analyzed by the customer.Who was notified,date and time:
Volatiles Sample(s) were received with headspace
COMMENTS:
DOC.QA.002 Rev 1

6602 Windmill Way Wilmington,NC
... ENVIRONMENTAL CHEMISTS, INC 28405 OFFICE:910-392.0223 FAX 910-
392-4424
Analytical Consulting Chemists NCDENR: DWQ CERTIFICATION#94 NCDHHS: DLS CERTIFICATION#37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: Town of Lake Waccamaw(WWTP) PROJECT NAME: WWTPINC0021881 REPORT NO: OH 09 019 0
ADDRESS: CONTACT NAME: Kevin Powell, ORC PO NO:
REPORT TO: PHONE/FAX: [phone]
COPY TO: email: [e-mail]
Sampled By: SAMPLE TYPE: I = Influent, E=Effluent,W=Well, ST=Stream, SO=Soil, SL=Sludge, Other:
Collection n , ' PRESERVATION _ +
.N m c (; c , o O w O
Sample Identification ± a 6 o o ern 0:1
z _j p oS' oT p W ANALYSIS REQUESTED
E o o a s V E o < O z N Z o _ r
U I Z Z T T 2 ~' J O
Date Time Temp in a LL
, I151a`I 11:Ga _ 135 © e , � 1 _Influent (1/week) G G 'ILI X BOD/TSS
a/Islay 0 0
Effluent(1/week) G G )' X BOD/TSS
ail51aq _ © 0 `
Effluent(1/week) G G ( I X < Q NH3
rA 1 i51a4 /0:55 C 0
,Effluent (3/week-grab) /Lk, GO G 11p R-Li ; X fecal conform
C P
-
Effluent(Mar,Jun,Sep,Dec) G G X Total N, Total P
C P
Effluent(Mar,Jun,Sep,Dec) _ G G _ C Chronic Toxicity(c-daph@90%)
8)4:10_. C P
G G l�95 44aeel• �n4rss C .L. N
al>sla� Ip Sn t3a 9 LI 111
Aeration Basin (a) G Imiss/mlvss
Transfer Relinquished By: Date/Time Received B : Date/Time
1. 1__Tncfl — a[151aq 11:3() (ar-0) "-1S-- _`) 34
12. a:---)
- � — -
Temperature when Received °C: a:-I Accepted: - Rejected: , _Resa le ,gqu^esstted:
Delivered By: Received By: 0 Date d)J ! Time:{ 30
Comments: _ _ TURNAROUND: _