NCG140043_Minotoring Info_20240408

WILLIAMS M U LLEN
Ethan R.Ware �( E\��O /V� ��Q d 11 3
Direct Dial: 803.567.4610
[e-mail]
pQR�
April 4, 2024
VIA E-MAIL & U.S. MAIL
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
dromgoole.ahmadna,eoa.eov
armor.suzanne(&eoa.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.lawyer(d,,deq.nc.gov
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 I1I. 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 ��"'�-146t'
Enclosures Ethan R. Ware
1230 Main Street,Suite 330, Columbia,SC 29201 1 P.O.Box 8116 Columbia,SC 29202
T 803.567.4600 F 803.567.4601 1 williamsmullen.com I A Professional Corporation

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STORMWATER-POLLUTION PREVENTION PLAN
QUARTERLY - GOOD HOUSKEEPING/PMIBMP INSPECTION
PLANT LOCATION: 5nd1111 m0f-z- DATEITIME: 1� aq
WEATHER:
(inspection frequency: MUST be performed QUARTERLY whe is active)
NAME: SIGNATURE:
AREAS TO CHECK: Raw material storage areas with water sprinklers/miste s,Truck rinselwash and drum
washout areas,Truck wash chemicals and Admix tanks,Oil tank/sheds product storage, Catch basins and pipes,
Outfails,Yard for spillage/debris.
Baseline BMPS Inspection:Good House Keeping, Equipment, Preventive Maintenance/Inspections,Spill Control
Kits Inspection, Employee Training lease use additional sheets if necessary)
Good Housekeeping/PM Inspection Checklist Remarks What Action is Needed
(Satisfacte ) (cleanup/repair/replace/none)
Is trash bin lid closed?&Is the Lid in working condition? YES N �.� 1pec um
Is trash removed from the site on a timely basis? YE NO
Is the site swept"As Needed Basis"at a minimum Quarterly? YES" NO
Is there any debris on the yard? YES NO
Are outside areas kept in a neat and orderly condition? YES NO
Is the maintenance shop orderly for the equipment,materials and YE NO
tanks/drums//totes?
Is there an evidence of ddps/leaks from Tracks/Equipment/ YES NO
_ Tanks/Drums/Totes?
Fines scraped up/removed from equipment areas? ES NO
Are the secondary containments in good conditions with NO leaks/ YES NO
Cracks/settlement?
Is the secondary containment discharge pipe closed and locked? YES NO
Are traffic areas free from equipment,materials,and other objects? YES' NO
Are chemicals/oils/fuels stored in proper containers? YES NO
Are any storage containers leaking or deteriorating with rust? YES NO
Are stone/sand areas kept neat and orderly manner? JENO
Do you see any leaks from the baghouses? NO
Are admix tanks in good condition and did you see any leaks? NO
Are Admix tanks located inside a secondary containment? NO
Are sediment traps/stone dams in good condition NO
Are ditches, pipes,swales and catch basins in good condition? NO
Is there a vegetation growth in the ponds? NO
Are ponds cleaned regularly for accumulated sediment? NO
Are washwater recycling basins are cleaned for accumulated NO
sediment?
Does the facility required to do BMP feasibility(technical and NO
economic)study?
Do you hear any unusual noise in the equipment? NO
Page 1/2

u -1
S9 - QUARTERLY---GOOD-HOUSKEEPINGIPM/BMP INSPECTION
Good Housekeeping/PM Inspection Checklist Remarks what Action is Needed
(Satisfactory) (cleanup/repair/replace/none)
Are washwater recycling basins pumps working properly? YES I NO
Check effects of return concrete and slurry drying areas on the (yE§ NO
outfall?
Are equipment(pH and other)in washwater recycling basins yES NO
working properly?
Are effective cleanup procedures used for spilled materials? ES NO
Are spill control kits in good condition with all the required yE NO
materials?
Are there any unauthorized discharges from the facility? YES NO
Is process water from truck washing,drum cleaning going to
ouffalls? YES NO
Are there any signs of erosion on slopes,ponds,or earthen YES gNO
berms?
Could any new BMPs implemented to protect stormwater quality? YES
Have all new employees received Good Housekeeping Training? YE NO
Did you provide at a minimum annual Stormwater Training to all YES NO
employees that could affect the stormwater quality
Check for any changes in the Plant operation that could affect yES NO
SWPP Plan Update?
Check pH readings from lab report to the pH at process water pits Y i NO
Check if any other area not mentioned above needs attention YES NO
BMP Inspection Checklist Remar s What Action is Needed
(Satisfactory) (cleanup/repair/replace/none)
Are oil pumps in working order with no leaks? YES NO
Are dust collectors are working properly? YES NO
Are compressor bleed is contained? YES NO
Are all secondary containment dikes/walls in good condition? YES NO
Are all stone and sand barriers orderly? YE NO
Is sediment in wash pits orderly and controlled? YES NO
Are riprap/hay bales/berms working properly? YE NO
Is there a site erosion? YES NO
Is sediment from the return concrete storage areas contained? ES NO
Are there any leaky equipment/vehicles on the property? YES NO
Is SWPP Plan/Site Map update Necessary? YES
Additional Remarks/Recommendations:
Plan Manager Signature: Date: .3' b a
NOTES: Use the additional remarks/recommendations section to describe deficiencies in Housekeeping
Measures,and Preventive Maintenance. Use other side if additional space is needed.
Page 2/2

449 Springbrook Rd,Charlotte, 28217
faypo.int _ Main704.529.63i4'
ANALYTICAL www.waypointanalytical.com
3125/2024
Concrete Supply Company
Johnnie Alexander
3823 Raleigh Street
Charlotte, NC,28206
Ref: Analytical Testing
Lab Report Number: 24-078-0025
Client Project Description:South Plant Facility
Dear Johnnie Alexander:
Waypoint Analytical,LLC(Charlotte)received sample(s)on 311812024 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 136
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,
6 -%(!r �
Jamie Corporeal
Laboratory Project Manager
Laboratory's liability in any claim relating to analyses performed shall be limited to,at laboratory's option,repeating the
analysis in question at laboratory's expense,or the refund of the charges paid for performance of said analysis.
-- - Page 1-o£-a— ---- ---

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_ __. — vvOy)p®_ 1nt�° _� - 449 Springhroolc_Rd,_ChMain7„N29.6364 - - - -- --�
� �i dy Main 704.529.G364
ANALYTICAL www.waypointanalytfcal.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 12/31/2023
Page 1 of 1 00016/24-078-0025
Page 2 of 8

}
���®I�6. 449.5pringbrook Rd,'Charlotte,NC'2821T- — - — - -----�
Main 704,529,6364
ANALYTICAL www.waypointanalytical.com
Sample Summary Table
Report Number: 24-078-0025
Client Project Description: South Plant Facility
Lab No Client Sample ID Matrix Date Collected DateReceived
99626 001 Aqueous 03/18/2024 15:45 03/18/2024 15:25
-- -- Page "3 of-8

Q - -
�p aypo'n�f - 449 Springbrooland,Charlotte,- 282ll - - - -�
• ! Main 704.529.6369
olasa ANALYTICAL www.waypointanalyticaLcom
Concrete Supply Company Project South Plant Facility
Johnnie Alexander Report Date: 0 312 5/2 0 2 4
3823 Raleigh Street Information: Received:0 3/1 812 0 24
Charlotte, NC 28206
Report Number:24-078-0025 REPORT OFANAL YSIS
Lab No: 99626
Matrix: Aqueous
Sample ID:001 Sampled:3/18/202415:45
Test Results Units MOL OF Date ITiime ' By Analytical
Analyzed Method
HEM:Oil and Grease <5.7 mg/L 5.7 1 03/21/24 09:49 GOB 16648
pH 7.5 S.U. 1 03/18/24 15:45 FLD FIELD
Total Suspended Solids 31.6 mg/L 5.0 1 03/20/24 12:47 GOB 2540D-2015
Qualifiers/ OF Dilution Factor MQL Method Quantitation Limit
Definitions
-- Page 4 of 8 -- -

449 5pringbrook Rd,Charlotte,NC 28212 _
®`- Main704.529.6364
ANALYTICAL www.waypointanalytiwl.com
Shipment Receipt Form
Customer Number:01058
Customer Name: Concrete Supply Company
Report Number: 24-078-0025
Shipping Method
Fed Ex US Postal 0I Lab 1.1 Other:
UPS Client Courier Thermometer ID: IRT15 3.7C
Shipping container/cooler uncompromised? is)Yes No
Number of coolers/boxes received
Custody seals intact on shipping container/cooler? Yes i )No ill Not Present
Custody seals intact on sample bottles? Yes No 4, Not Present
Chain of Custody(COC)present? 4P Yes No
COC agrees with sample label(s)? 0!Yes No
COO properly completed (6,Yes No
Samples in proper containers? I4+Yes No
Sample containers intact? i0i Yes No
Sufficient sample volume for indicated test(s)? (4)Yes ! ! No
All samples received within holding lime? (o!Yes No
Cooler temperature in compliance? (o!Yes No
Cooler/Samples arrived at the laboratory on ice. o"Yes No
Samples were considered acceptable as cooling
process had begun.
Water-Sample containers properly preserved (ce!Yes No N/A
Water-VOA vials free of headspace Yes 'No to) N/A
Trip Blanks received with VOAs Yes No )N/A
Soil VOA method 5035—compliance criteria met Yes ! 'I No lei N/A
High concentration container(48 hr) F Low concentration EnCore samplers(48 hr)
High concentration pre-weighed(methanol-14 d) I Low cone pre-weighed vials (Sod Bis-14 d)
Special precautions or instructions included? ,Yes to) No
Comments:
I
I
Signature: IAngelo Norvell _ ] Date &Time: ',03%18/202417:20:16
---- - Page 5 of 8

GHe0.� ®F CUSTODY RECORD
py ppy/{;�qw /p tint gy x YES NO N'A
11p e!/ayp ■Y 9 9t PAGE. .. OF
OUOTE H TOFNSURE PROPER BILLING!
. .__....._ samples INTACT upon arrival? --P
YJ Cb� ANALYTICAL project Name: ,_. R¢corv_dINICE? -- ---
449 Springbrook Road•CharlottD•NC 25217 Short Hold ADnlys Yes) (No) UST Project: (Yes) (No) PROPER PRESERVATIVES indicated? v
Phone T04IS29-6 E4 Fax=7041525-0 .Please ATTACH any project specific reporting(QC LEVEL 1 li III IV) Renewed'WITHIN HOLDING TIA!ES'% -
CUSTODYSEALSINTACT?
Client Company Name:_- _ G - provisions and/or QC Requirements �p
1 VGLATILES reed WiOUT HEADSPACE? ._-- -
Report To/Contact Name:,----__--._--__-_-___.,.-,_-. Invoice To: ,-. _-.___--. — ---- �-¢!
P - --- PROPER CONTNN'RS used'
3
Reporting AddresS:--_ --- — ..-.-- Address--- -... ._.---__ _..---_.__.- ---- 7EbIF' Therm lD. S ODsen283,-1._C
Phone:-- _ Fax(Yes)(No):_. _ .. Purchase Order No./Billing Reference _ ___ TO BE FILLED IN BY CLIENT/SAMPLING PERSONNEL
Email Address:__,-- __ _--..__.-_--_._ . .-- Requested Due Date J i Day J 7 Days J 7 Days J a Drrys J 5 Days Certification: NC SC__-_
EDD Type:PUP,.- Exaei_Other _.. __. "Working Days" J q-9 Days J standard to days J rFroeusPe ApovCt Bo Other-_
Site Location Name: _..__.-_-_.,.._._------ Samples received after 1500 will be Processed noel business day
Site Location Physical Address: _....- —_ Turnaround Nine is based on business days,Excluding evaekendS anD 1tolydaYs. Water Chlorinated: YES__, NO-
(
SEE REVERSE FOR TERMS a CONDITIONS REGARDING SERVICES Samples foedU on Collection: YESu._NO_�
RENDERED BY WAYPOINT ANALYTICAL.LLC TO CLIENT) P P _ _
T- ANALYSIS REQUESTED
TIME MATRIX SAMPLE CONTAINER / f
CLIENT DATE COLLECTED (SOIL, PRESESVA- ��Tq �`(y�\ l / j �� REMARKS ID NO.
SAMPLE DESCRIPTION COLLECTED MILITARYWATER,OR 'TYPE _----- i �`" l•� ///I\"`/
I I HOURS I SLUDGE) SEE E OW MO. I SIZE
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...__..I Cencrele Suouly Crimean as
:a- {{ smial Plana Facd,ty I f 20 �
� Sam /J/�' r r _�•/'•
peer 5 Signature �/ ____ Sampled By(Print Name)--_- - _U t 1 1---_ 1__I -
-^__ - it
i Upon relinquishing,writing this Chain of int An y is al PrauthorizationjectMg for Waypoint Analytical to proceed with the analyses as requested above.Any changes must be Site Arrival Tune!J-
sub ed in writing to the Waypoint Analytical Project Manager.There will be charges for any changes after analyses have 6e¢n iniliallzed.
Rei , Isnq.. y Is-, .., .Rnenco W sanDwrol Dn;D n,:r.N-,r• Additional CommentsSit.Field
Tech um Time:
'-- Field Tech Re r 9 t .3 aN>i Hecc -19 +',3m i r t 6a C h Po¢ ..-_.
Y I
let
51:avt Ry tSgraunor rin-.nr lGor .r'i¢.11 Fif t� �E/p,///�/(I/ I/� T .
i U iho�Dl 50rpmtml NOTE:ALLSAIAPLECO ERS SHOULD BETAPED SHUT URTODY FALS FOR TRANBPO ATION TO TILE LABORATORY COC G-rcp re
SAMPLER ARE NOT/AC EPTED AND VERIFIED AGAINST COc UNTIL RECEIVED AT THE LABORATORY
J Fea x JV_S JMe", E'+c ud J yant Pnat tlf d r .z JOI _ _
NPOES: UST: GROUNDWATER, DRINKING WATER: SOLID WASTE: RCRA: BRWNFLD ' LANDFILL OTHER:
J NC J SC J NC J SC I J NC JSC JNC JSC JNC JSC IJNC JSC JNC JSCIJNC JSC JNC .JSC
-1 J J___ I J-__ __- J J J-._.-_ J__ VRIG{Pb")L __
`CONTAINER TYPE CODES: A=Amber C=Clear G=Glass P=Plastic; TL=Teilon-Lined Cap VOA=Volatile Organics Analysis(Zero Head Space)

1110
01058
.uncrptn so"N comaanv G69]o`
EnvQ,afityuu(
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
fFar guidance ovfflling aw thisfiarnt.please visit hops://deq.oc.gov/about/diviseons!energy-miaenl-laud-resources/
npd es-stonuwater-gps
Permit No.: N/C/ / / / / / ! or Certificate of Coverage No : N/C/G/ !
Facility Name:
County: ��' �� r . Plione No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be perfonned during a"measurable storm event." �^
A "measurable storm event' is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
[local storm events during the sampling period,and the permittee obtains approval from the local DEMUZ
Regional Office. f
By this signature. I certify that this report is accurate and complete to the best of my knowled,c:
(Signature of Permittee or Designee)
I. Outfall Description:
Outfall No. 0O Structure(pipe,ditch,etc.):
Receiving Sircam:
Describe the industrial activities that occur within the outiall drainage area:
Pane I of
Sn'L'8a_,last mtHLncd able U2018
---- Page 7 of 8

2. Color: Describe the color of the��((lisFharge using basicscolor brown,
s red, blue,et)a� ltt
(light,medium,dark)as descriptors:_ C ( ���V
3. Odor: Describe any distinct o ors that the discharge may have(i.c..smells strongly aroil, weak
chlorine odor,etc.): 100l7`i
a. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy: !`\
h 2 3 A 5
5. Floating Solids: Choose the number which best describes the alilonnt of nOating solids in the
stormwater discharge, where I is no solids and 5 is the surface covereri with floating solids:
I-\ 2 3 ;I 5
G. Suspended Solids: Choose the number which best describes the amount of suspended solids in
Ilse slormmater discharge, where I is no solids ands is extremely muddy:
�) 2 3 1 a
7. Is there any loom in the stormwater discharge? O Yes No.
3. Is there an oil sheen in the stormwater discharge? 0Yes 'o.
9. Is there evidence of erosion or deposition at the outfall? O Yes NO.
10. Other Ohvious Indicators of Stormwater Pollution: /
List and describe
Note: Low,clarity,high solids,and/or the presence of foam,oil sheen, or erosion/deposition may he
indicative of pollutant exposure. 'These condilidns warrant further investigation.
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8c11111 Pldm F:x;ma q 08,O
Page 2of2
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Page 8 of 8

Stormwater/Process Water Management Inspection
Plant: ;A � ( � � � , k 1� Sample Date: h� a
Inspection Date:
Type of Sample (Circle one) : Stormwater or Processs,
Area of Exceedence (Circle ALL that apply): pH - TSS Settleable - Total Petroleum - Identify Other -
General Site Observations:
Yes No
�. Yard free from debris
2. Leaks throughout Yard ex: "vehicles admix other" addressed
3. Wash-out pit well maintained including windrow area
q. Is the rock and sand that is washed away from stockpiles scraped up " Minimize solids"
s. Catch basin filtration maintained properly " Replace Hay or Rock dams"
I
Aggregate unloading and storage:
Yes No
1. Water runoff from agg directed to catch basins ponds or wash down areas
2. Water clear of oil sheen in delivery areas
3. valley gutters leading towards Storm Water drains have filtration to catch solids and is replaced regularly
Batch Plant:
Yes No
1. J Block walls around admix secondary poured solid
2. If truck wash is not located in the wash out area is there secondary containment
3. Trash removed from the inside of the secondary containment
q. Free of any leaks or spills inside secondary containment
Property of Concrete Supply Co

Stormwater/Process Water Management Inspection
Wash out Area:
Yes No
1, Is pit maintained and neat in appearance i.e.. Not overflowing with solids and debris on
walls
2. Drying area of proper size
3. Is a Ph adjuster used to treat wash water
a. f Do bays allow for solids to settle
5. Is the main Storm water run off separate from the Process water run off
6. Do the wash out area bays also catch processed water from plant and or secondary containments
7. Is all water contained on site other than extreme rain events
Additional control measures required " Explain in the Comments section"
Truck fueling and Oil storage:
Y�e -�N-o
t. I 7 i J Is there an oil pallet used to contain possible leaks from drums
l
i
Property of Concrete Supply Cc

Stormwater/Process Water Management Inspection
Line Number: Section: Comments/Observations/Sust_gestions:
d�n5 x_fcnj ,SASd q4d a o/1nj lea ✓,n5 t3
c��i�� 5o1�Js
Inspector: / u,517�1 le. - Signature:
Document Corrections With-in Two Months of Inspection Date!!!
Property of Concrete Supply Co