NCG140043_Quarterly Monitoring for EPA_20240701

WILLIAMS M U LLEN
Ethan-R-Ware
Direct Dial: 803.567.4610
[e-mail]
July 1, 2024
VIA E-MAIL & U.S.MAIL JV C 6 10C)�3
Ahmad Dromgoole �%
Suzanne Armor
Water Enforcement Branch
Enforcement and Compliance Assurance Division
United States Environmental Protection Agency, Region 4
61 Forsyth Street, S.W.
Atlanta, Georgia 30303-8960
domgoole.abmad(i�ena.Qov
armor.suzanne(&ena.eov
Mike Lawyer
Supervisor, Stormwater Program
Division of Energy, Minerals, and Land Resources
North Carolina Department of Environmental Quality
1612 Mail Service Center
Raleigh,North Carolina 27699-1612
mike.lawver(&deg.nc.eov
Re: Necessary Quarterly Monitoring
Concrete Supply Company, LLC, South Plant
Administrative Order on Consent,Docket No. CWA-04-2022-03I0
Charlotte,North Carolina
Dear Mr. Dromgoole, Ms. Armor and Mr. Lawyer:
Please find enclosed a copy of the quarterly monitoring at permitted outfalls of Concrete
Supply Company, LLC,South Plant,in accordance with Part III. Par. 35.a of the above-referenced
Administrative Order on Consent("Order"). Monitoring occurred unless there was no qualifying
rain event causing a discharge of storm water during this time,as evidenced by rain gauge readings.
Feel free to call if there are any questions.
Sincerely,
ERW/st
Enclosures Ethan R. Ware
1230 Main Street,Suite 330,Columbia,SC 29201 1 P.O.Box 8116 Columbia,SC 29202
T 803.567.4600 F803.567.4601 1 williamsmullen.com I A Professional Corporation

Concrete Supply Co LLC
Certification
I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who
manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, inclu ling the possibility of fine and imprisonment for
knowing violations.
Signature: Tel: [phone]
Name: Johnie Alexander Date: f7 oZy
Title: Environmental Manager

waypoi nt_ �9 Springbrook Rd,Charlotte, .5 28364
Main 704.629.6364
ANALYTICAL www.waypointanalocal.com
616/2024
Concrete Supply Company
Johnnie Alexander
3823 Raleigh Street
Charlotte,NC,28206
Ref. Analytical Testing
Lab Report Number 24-121-0008
Client Project Description:South Plant Facility
Dear Johnnie Alexander.
Waypoint Analytical,LLC(Charlotte)received sample(s)on 413012024 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in
accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance,method validations,instrumentation maintenance and calibration for all
parameters were performed in accordance with guidelines established by the USEPA(including 40 CFR 13S
Method Update Rule May 2021)unless otherwise indicated.
Certain parameters(chlorine,pH,dissolved oxygen,sulfite_.)are required to be analyzed within 15 minutes of
sampling.Usually,but not always,any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s).Results for solid matrices are reported on an as-
received basis unless otherwise indicated.This report shall not be reproduced except in full and relates only to
the samples included in this report
Please do not hesitate to contact me or client services if you have any questions or need additional information.
Sincerely,
�
XCr �
Jamie Corporeal
Laboratory Project Manager
Laboratory's flablliry In any claim relating tc analyses performed shall be limited to,at laboralaq/s op,fon,repeating the
analysis in question at laboratory's expense,orthe refund of the charges paid for pedormance of said aaalysls.
Page 1 of 8

Waypoint. 449 Springbrook Rd,Charlotte,NC 28217
Main 704.529.6364
ANALYTICAL www.waypolntanalytfcal.com
Certification Summary
Laboratory ID:WP CNC:Waypoint Analytical Carolina,Inc.(C),Charlotte,NC
State Program _ Lab ID Expiration Date
North Carolina State Program 37735 07/31/2024---- -_
North Carolina State Program 402 12/31/2024
South Carolina State Program 99012 07/31/2024
South Carolina State Program 99012 12/31/2024
Page 1 of 1 00016124-121-MS
Page 2 of 9

Waypoint. 449 Springbrook Rd,Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalyticai.com
Sample Summary Table
Report Number. 24-121-0009
Client Project Description: South Plant Facility
Lab No Client Sample D) Matrix Date Collected Date Received
92295 Outla0001 Aqueous 04130/202410:50 04/30/202413:35
Page 3 of 8

Waypoint. 449 Springbrook Rd,Charlotte,MC 28217
Main 704.529.6364
ANALYTICAL wwwwaypolntanalytfcal.com
olose
Concrete Supply Company Project South Plant Facility
7ohnrxe Alexander Report Date;OS/O6/2024
3823 S Street Information: Re eived:04/30/2024
Charlotte
te, N NC 28206
Report Number:24-121-0008 RF3VR7'0FAMUV5L4
Lab No: 92295 Matrix:Aqueous
Sample ID:Outfa71001 Sampled:4/30/202410:50
Test FtesulLs Units MOL OF Date/Time By Analytical
Analyzed Method
HEM:00 and Grease <5.8 m91L 5.8 1 05/03/24 09:41 GOB 1664E
PH 6.6 S.O. 1 04AD124 10:50 FLD FIELD
Total Suspended Solids 1" mg/L 2.6 1 OS/01/24 13:30 GOB 2540D.2015
Qualifiers/ OF Dilution Factor MQL Method Quantittion Unit
Definitions
Page 4 of a

Way nt_ 449 Springbrook Rd,Charlotte,NC 28227
Main 7a4.929.6364
ANALYTICAL w Wwaypolntanalyntaltom
Shipment Receipt Form
Customer Number:01058
Customer Name: Concrete Supply company
Report Number: 24-121-0008
Shipping Method
!. ,Fed Ex • US Postal 401 Lab :Other: �—
t UPS !. +Client !. Courier Thermometer ID: RT15 0.9C
Shipping container/cooler uncompromised? +f+Yes .)NO
Number of coolers/boxes received r 1
Custody seals intact on shipping conlahed000leO Yes t No +0t Not Present
Custody seals Intact on sample bottles? Yes -+No Not Present
Chain of Custody(COO)present? Yes -No
COG agrees with sample label(s)? 4,Yes ,No
COC properly completed kW Yes +No
Samples in proper containers? 146t Yes +No
Sample containers intact? 01 Yes +No
Sufficient sample volume for indicated test(s)? t) Yes '+No
All samples received within holding time? (01 Yes + "�No
Cooler temperature In compliance? +0+Yes - -)No
Cooler/Samples arrived at the laboratory on Ice. �+Yes 4 :No
Samples were considered acceptable as cooling
process had begun.
Water-Sample containers properly preserved .00 Yes No NIA
Water-VOA vials free of headspace Yes i No -0,NIA
Trip Blanks received with VOAs Yes '?No Oi NIA
Soil VOA method 5035-compliance critera met i +Yes +' No i0l NIA
Hgh concentration container(48 hr) ! Low concentration Encore samplers(48 hr)
High concentration pre-weighed(methanol-14 d) I Low oonc pro-weighed vials(Sod Bis.14 d)
Special precautions or Instructions included? Yes No
Comments:
I �
Signature: !/n4elo Norveh Date&Time: bM30YL0241357:21 }
Page 5 of 8

CHAIN OF CUSTODY RECORD
Waypomt. PAG£ . IOF I o00T£ITOBNSVRE PR E BILUNO: _ _ r YES NO Iln
ANALYTICAL SamVe`,INTACT upon orrnaly �
449 Spnngbrook Road•ANALYTICAL
ta,NC 28217 Projeel Namo: _��7.L•''0. '� _ Retewtl IN ICET
vhonp 7 4167 fN • Fes:7odr525.Od Short Hold Analy�� (Yes) (No) UST Protect: {Yes) (No) PROPER PRESERVATIVES mtl:4t:eT _• __ _
Client Company Name: '�jugC -�� •Plca£o ATTACH 1project speeliiC ropoNing(OC LEVEL 111111 IV) Rec¢Nud WITHIN HOLDING TIMES'
Report TOfCOD1aCl Name', ` G'+ provisions andlor OC Requirements i CUSTODY SEALS INTACTs
' -----• .— InvoCo To: V"JLATILES ree'a N10UT HEAD$PACEI
Reporting Address: Address: - _ __.,�_ -- - - •-" PROPERCONTAI RSusad9
I TEIAP TAerm_ID •"TS Obac R.TI Qx9_C rCort_Q,�_'C
Ea it A ,__,____•,-,,Fax(Yes)(No):__,_,___., ,� Porches¢Order NoJBilling Reforeneo,�, .__•_,_^.____• ITO BE FILLEDIN BY CI�NT/SAMPLING PERSONNEL(
Email Address: Remlest4d Due Date J 1 Day ]2 Days J S Days J 4 Days J 6 Des I/
EDD Typo:POF,_Excel_Other_,� I Certification: NC_ _- SC_._.-
"N'orklnphays" J 49 Daro J Slargmd 10 tlav3 J Rush Wotk Must Be
Site Location Name; ra IS Pre Apprpvea I Other___ NIA...S4m;daalanSdaleI .00 n+;I DO prME3%od next histrer day I i/
Site Location Physical Address: TritmrouttaameIt based a,bunm Days..:xtWdingrwekondeand holidays I Water Chlorinated: YES_..-__- i
tSEe JIMME FOR TERN9 A CONDITIONS REGARDING SERVICES
RENDERED IrThiMPOINT ANALYTICAL.LLC TO CUM Samples Iced Upon Collection: YES_NO—
TIME MATRIX SAMPLECONTAINER ANALYSIS REQUESTED
CLIENT DATE CAii TEO (SOIL, PRESERYA- _P //
(SAMPLE DESCRIPTION COLLECTED MILRARY WATFR,OR -TYPE I t10. SIZE
TIVES 1 / �{ REMARKS 10 NO.
HOURS SLUDGE) SEE BELOW I
I �l 30 <,0 -f T( w
10) N j I
P,
j v — I[I�IIIICII�I�GIflII�IIIIIIVQI ���ll� ---
'i- Conxreto SuPntr Camnnm 134054
$MIih Plant F4plgy f
--lilt-+++---
yl I I I
Sampler's SignatureSampled By(Prim Name)_. � VY�_ Alfiaaton �IL
Upon MIT this Chain olC �odyyis your authotlalion for Waypoint Analyllca to proceed with the anONsos asrequ¢slod obove.A� chnngosmust be
su IKsd in writing to the W///aypomt Analytical Project Manager.Tlloro wgl he chaTgos for any ChanGING Dltor oltDysos have loon inilializod. I Sh4Ard.al Timm:•
- D7,/ .� Oi ISOrGmm r Ca:c 1.'.unv a,vs ...�
33J ) Additional Comments Site OePOdure time:
� itr. . n . e�•o Rurc.ntl r'1(—'SmwFo, t��—�.r'�--_-- Feltl Tmrh Sri•
' ttT•',mu,eri•�x f:v cyv'srE- —_. erne ro'aeAu a —� i Dc/J/"' MMago:
7 1
1.!mTM el Snnn�rm NOTE.MES SAAIPIfi COOLERS SNWLO-B TAF DS Si�R INTO I C NJ
bAMPLE3 ARe NOT ACCEPTED AND V6RIAEDACAmeT COC UNILL REDEMe ATTIEUBOM RY.
F4d Ex UW6 JN)n1!MnR4 IpSntAy��7F.mtl$!�A JDf.f _ ..
NPDES: UST: GR NDWATER5 DRINKING WATER: SOLID ASVL T9:I If CRA:—BI�W�t FLD N�.A OFILL;OTHER:
J NCJSCIJNC JSG IJ C JSC_ IJNO - SC �JNC JSC JNO JSCIJNC -ISO IJNC JSCIJNC JSC
...... C'RIGINAI_
CONTAINER TYPE CODES: A=Amber C=Clear Gm Class P-Plastic; TL-Tollan•Linod Cap VOA.VolaUla Organics Analysts(Zero Hood Spate)
I

GreGonmrnrof
� Qualify
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For�aridance on frlJrng ant lbitforny please visit htlpsaldeq.nagovhboumfdivisions/encrgym resat-land-r�saurcesf
npdes•slomiwater-gps
Permit No.: N/C/ / / / / / f / or Certificate of Coverage No.: N C / I
Facility Name: ���
County: phone No.
Inspector: LirZvra /L�1/Ti�c (
Date of Inspection: _ G��•24_
r
Time of Inspection: 0 N-V
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a"mcasunble storm evens:' Y 1
I
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
oulfall. The previous measumble storm event must have been at least 72 hours prior. The 724tour storm I
interval does not apply if the permittec is able to document that a shorter interval is representative for l
local storm events during the sampling period,and the permiuce obtains approval from due local DEMLR f
Regional Office.--- ---- - — - - ---t
BY this signature.1 certify that this report is accurate and complete to the best of my knowledge:
(Sig-nature ol'Permitteo or Designee)
1. Outfnll Description:
Outfnll No. - L - Structure(pipe,ditch,etc.): ! Jar
Receiving Stream:
Describe the industrial activities that occur w hin the oulrall drainage area:
' �B�u Ytrt\YC oPof�moxS ��uGe55 J e!
��}��Nllld�'IIINI�nWl�i�ll��l a�:�a
Page I oft Cr+irCIC i1,MN G:mwaV ISa05i
9neh RAM FA44V
swtrx.t+_.t�sl iunairmt orrotn_ot s
Page 7 oe a

2. Color:_Describe-thc.color-of-the dascha et in b�cScolors`�red b�yiwi, b uC�c,)and`tint
(ligln,medium,dark)as descriptors:�/�
Y
3. Odor: Describe any distinct odor
chlorine odor,etc.): N ),vs that the discharge may have(i.e..smells strongly of oil,weak
4• Clarity: Choose the number which best describes the clarity of lice discharge,%Yllerc I is clear
and 5 is very cloudy;
V) 2 3 d 5
S. Floating Solids: Choose tile number which best describes the amount of floating solids in the
stormuater discharge,where I is no solids and 5 is the surrace covered with floating solids:
C, 2 3 4 5
G• Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwaler discharge,where I is no solids and 5 is extremely muddy:
1 1' 2 3 q 5
7. 15 there any four" in the stomnvater discharge? o yes
R Is there an oil sheen in the stonnwater discharge? Oyes 6 No.
7. is there evidence of erosion or deposition at the outfall? O Yes 1 o.
J d. Other Obvious indicators or Stornnvater Pollution:
iList and describe
Note; Law clarity,high solids,and/or tite presence of foam,oil sheen,or erosion/deposition may be
indicative of poll ulantexposure. Tllesecnntlitions%varrantf"rlheriaYcsti.-alion.
page 2of2 :1e110IC5uaul,Cc
:pdt,R.W PaahM1
SwU•:a7,last maLfied Ofi101/.01 S
Page 8 of 8

Good Housekeeping Chetkhn-112.South P1am O5113M02A 4M
QUARTERLY- GOOD HOUSEKEEPING/PM/BMP INSPECTION
(Inspection frequency: RUST be performed QUARTERLY when facility is active)
PLANT LOCATION
112-South Plant
OCCURRED AT
05/13(2024 01:33 PM
WEATHER
Cloudy
INSPECTOR NAME
Dusan Perkins
Good Housekeeping/PM Inspection Checklist
AREAS TO CHECK:Raw material storage areas with water Spdnklers/misters.Truck nnse/wash and drum washout areas,Truck wash
chemicals and Admit tanks.Od tank1sheds product storage.Catch basms and pipes.Oudalis.Yard for spillageldebns.
Baseline 014PS Inspection:Good House Keeping,Equipment.Preventive Mamlenancelinspections,Spill Control rots inspection.
Employee Training(please use additionar sheets if necessary)
15 TRASH a1N LID CLO5ED'a IS THE LID IN WORKING CONDITION'
Yes
15 TRASH REMOVED FROV THE SITE ON A TIMELY 3AS1S'
Yes
15 THEE SITE SWEPT AS NEEDED SAStS-AT A DINIMUM QUARTERLY'
Yes
15 THERE ANY DEBRIS IN THE YARD'
NO
ARE OUTSIOE AREAS KEPT IN A N-EAT AND ORDERLY CON0tr,014'
Yes
15 THE MAINTENANCE SHOP ORDERLY FOR THE SQUIPI3ENT MATERIALS AND TANKS I DRUMS I TOTES,
NIA
1S THERE AN EVIDENCE OP ORIP54EAKS FROM TRUCKS,EQUIPMENT I TANKS I DRUMS I TOTES'
No
FINES SCRAPED VPrREMOVED FROM EQUIPMENT AREAS'
Yes
chge 1 ofa Preperad with Adamant

Good Mausekeepins Checkhst•112•South Want 05113=24
ARE THE SECONDARY CONTAINMENTS IN GOOD CONDITIONS WITH NO LEAKS I CRACKS I S'TTLEMEIIT,
Yes
13 THE SECONDARY CONTAINMENT DISCHARGE PIPE CLOSED AND LOCKED'
Yes
ARE TRAFFIC AREAS FREE FROM EQUIPMENT, MATERIALS,AND OTHER OBJECTS'
Yes
ARE CHEMICALS/OILS/FUELS STORED III PROPER CONTAINERS'
Yes
ARE ANY STORAGE CONTAINERS LEAKING OR DETERIORATING WITH RUST'
No
ARE STONE/SANG AREAS KEPT NEAT AND ORDERLY MANNER'
Yes
DO YOU SEE ANY LEAKS 99041 THE SAGHOLISES'
NO
ARE ADMIX TANKS IN GOOD CONDITION AND NOT LE_AKIIIG'
Yes
ARE ADMIX TANKS LOCATED INSIDE A SECONDARY CONTAINMENT'
Yes
ARE SEDIMENT TRAPS I STOUE DAMS IN GOOD CONDITION
Yes
ARE DITCHES PIPES SIVALES Alto CATCH SA51115 IN GOOD CONDITION'
Yes
15 THERE A VEGETATION GROW-.H IN THE PONDS'
NO
ARE PONDS CLEANED REGULARLY FOR ACCUMULATED SEDIMENT'
Yes
WASHWATER RECYCLIHO BASINS ARE CLEANED FOR ACCUMULATED SEDIMENT'
Yes
15 THE FACILITY REQUIRED TO DO SUP FEASIBILITY(TECHNICAL AND ECONOMIC)STUOVI
No
ems¢2 vi4 p¢pared prth Aclalmant

Good Housekeemng Checklnc-112-South Plant OS1131202A
DO YOU HEAR ANY UNUSUAL NOISE IN THE EQUI?'}ENT
NO
ARE WASHWATER RECYCLING BASINS PUMPS WORKING -ROPERLYo
Yes
CHECK EFFECTS OF RETURN CONCRETE AND SLURRY DRYING AREAS ON THE OUTFAtL'
Yes
ARE EOUIPUEIJT(PHAND OTHER)IN WASHWATER RECYCLING 3A3INS WORKING PRO?_RCIi
Yes
ARE EFFECTIVE CLEANUP PROCEDURES USED FOR SPILLED UATERIALST
Yes
ARE SPILL CONTROL KITS IN GOOD CONDITION WITH ALL THE REQUREO L1ATERIALSI
Yes
ARE THERE ANY UNAUTHORIZED DISCHARGES PROU THE FACILITY1
NO
15 TREATED WATER FROM TRUCK WASHING DRUM CLEANING GOING TO CUTFALLS>
Yes
ARE THERE ANY SIGNS OF EROSION ON SLOPES PONDS OR EARTHEN eERMS7
NO
SHOULD ANY NEW SUPS SE IMPLEMENTED TO PROTECT STORMWATER QUALITYT
No
HAVE ALL NEW EMPLOYEES RECEIVED 0000 H.OUSEKEEPIJJG TRAINING•
Yes
OIL ♦OU PROVIDE AT A MINIMUM ANNUAL STORIJYIATER TRAINING TO ALL EMPLOYEES THAT COULD AFFECT THE STORMWATER QUALITY
Yes
CHECK FOR ANY CHANGES IN THE PLANT OPERATION THAT COULD AP=ECT SWPP PLAN UPOATE>
Yes
COMPARE PH READINGS FROM LAS REPORT TO THE PH AT PROCESS WATER PITS
Yes
CHECK IF ANY OTHER AREA NOT MENTJONED ABOVE NEEDS ATTENTION
Yes
cage 3 pt1 PtzPared-Azh Achunw,nt

Good HousakeePlns checldm.L12•South Plant 0sfI31202A
BMP Inspection Checklist
ARE OIL PUMPS IN WORKING ORDER WITH NO LEAKS'
Yes
DUST COLLECTORS ARE Y/ORKING PROPERLY)
Yes
ARE COMPRESSOR BLEED IS CONTAINED'
Yes
t
ARE ALL SECONDARY CONTAINMENT DIKES/WALLS IN GOOD CONDITION' "
Yes
ARE ALL STONE AND 5a40 BARRIERS ORDERLY?
Yes
15 SEDIMeN-IN WASH PITS OROERLV AND CONTROLLED'
Yes
ARE RIPRAPIHAY 04LESIBERIAS WORKIUG PROPERLY?
Yes
IS THERE A SITE EROSION'
NO
IS SENMENT:ROLE THE RETURN CONCRETE STORAGE AREAS CONTAINEO'
Yes
ARE THERE ANY LEAKY EQUIPUENTIVENICLES ON THE PROPERTY'
No
IS SWPP PLAN/SITS UAP UPDATE NECESSARY'
No
Sign Oft
INSPECTOR SIGNATURE
Dusun Perlons
NOTES:Use the additional remarks/recommendations section to describe deficiencies in Housekeeping Measures,and
Preventive Maintenance.
"d Of A P eoared-rich Aclymam,