NCG140505_Benchmark Exceedance_20240730

Peterson, Kathryn S
From: Eplin, Jerry W
Sent: Tuesday, July 30, 2024 7:55 AM
To: Eric Eubanks
Cc: Peterson, Kathryn S; Kay, Lily C; Rohit Shetty
Subject: FW: [External] 2Q 2024 DMR - Tri-State Gunite
Attachments: Tri State Gunite 2Q 2024 DMR.pdf, RE: [External] 2Q 2024 DMR - Tri-State Gunite
Based upon your attached email,this triggers Tier Three response for TSS. Below is a snapshot of the Tier Three
requirements from the NCG14 permit. Please note the requirements and deadlines from the permit. Please
contact us if you have questions.
Table 5: Tier Three Response for Four Benchmark Exceedances Within Five Years
Timeline From
Receipt of Fourth Tier Three Required Response/Action
Sampling Result
Continuously i. Document the exceedances and each required response/action in
the SWPPP in accordance with E-7(c) above.
ii. Continue monthly monitoring for all parameters at the subject
outfall and continue until three samples in a row are below the
benchmark value.
Within two weeks iii. Notify DEMLR's Regional Office in writing of the affected outfall,
four exceedance dates and values.
iv. Conduct a stormwater management inspection.
v. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month vi. Prepare an Action Plan that should include specific,feasible
courses of action to reduce concentrations of the parameter(s) of
concern including,but not limited to,source controls,
operational controls, or physical improvements and submit to
DEMLR's Regional Office for review and approval.
Upon DEQ Approval vii. Implement the approved Action Plan.
Upon Completion of vii. Notify DEMLR's Regional Office of Action Plan completion.
Approved Action Plan
Jerry W. Eplin, PE
Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Office: [phone]
Email: merry.eplina-deg.nc.gov
Physical and Mailing Address:
610 E. Center Ave. Suite 301
1

Mooresville, NC 28115
D,_ E QR&7,A-
6pp�rlmmt{of FmnrunmMinl p�allYy
Email correspondence to and from this address is subject to the
North Caro/Ina Public Records Law and may be disclosed to third parties
From: Eric Eubanks<[e-mail]>
Sent: Friday,July 26, 2024 4:17 PM
To: Eplin,Jerry W<[e-mail]>
Cc: Kay, Lily C<[e-mail]>; Rohit Shetty<[e-mail]>
Subject: [External] 2Q 2024 DMR-Tri-State Gunite
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Hi Mr. Eplin,
Here is the 2Q 2024 DMR for Tri-State Gunite.This report has also been uploaded online at the NPDES Permit DMR
Upload page (https://edocs.deq.nc.gov/Forms/SW-DMR). Please let me know if you would like us to mail in the
hard copy with the wet signatures
Best Regards,
Eric M. Eubanks, P.G.
Project Manager
Geological Resources, Inc.
3502 Hayes Road I Monroe, NC 28110 1 website I facebook
704-845-4010-office 1704-845-4012-fax [phone]-cell
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
2

0
Geological Resources, Inc.
July 26, 2024
Mr. Jerry Eplin
Land Quality Division
Division of Energy, Mineral, and Land Resources
North Carolina Department of Environmental Quality
Mooresville Regional Office
610 E. Center Ave. Suite 301
Mooresville, North Carolina 28115
RE: Discharge Monitoring Report—April-June 2024 (Second Quarterly Period of 2024)
Tri State Gunite of NJ, L.P. - Monroe facility
1822 Tower Industrial Drive
Monroe, Union County, North Carolina
General NPDES Permit # NCG140000
Certificate of Coverage # NCG140505
GRI Project# 5969
Dear Mr. Eplin:
On behalf of Tri State Gunite of NJ, L.P. (Tri State), please find attached results of stormwater outfall
sampling that was conducted on June 27, 2024, for the Tri State Gunite facility in Monroe, Union
County, North Carolina. Storm water samples were collected from outfall SDO-1 by GRI personnel
on June 27, 2024, in accordance with the sampling requirements of the permit. Water samples were
submitted for analysis of total suspended solids (TSS) and non-polar oil and grease. The pH reading
was measured in the field.The June 2024 sampling results indicated that the TSS levels exceeded the
permit requirements, and the measured pH was outside the allowable range of the permit in the
sampled outfall. In accordance with the permit,the pH and TSS exceedances trigger a Tier II response
that require the facility to address the exceedances by making site improvements and to conduct
monthly sampling events to confirm compliance of pH and TSS levels with permit requirements. The
Stormwater Discharge Outfall Monitoring Report is included in Appendix A, the Stormwater
Discharge Outfall Qualitative Monitoring Report is included in Appendix B, and a complete laboratory
analytical report is included as Appendix C.
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]

Discharge Monitoring Report—April-June 2024 (Second Quarterly Period of 2024)
Tri State Gunite of NJ, L.P.- Monroe Facility
Monroe, Union County, North Carolina
Certificate of Coverage# NCG140505
Page 2 of 2
The next quarterly sampling event is scheduled to be conducted between July and September 2024
during a representative rainfall event. Please do not hesitate to contact me at [phone], if you
have any questions or comments.
Sincerely,
Eric M. Eubanks, P.G.
Project Manager
cc: Erin Wyndham, Tri State Gunite of New Jersey, L.P.
Division of Water Resources Central Files, NCDEQ, 1617 Mail Service Center, Raleigh, NC
27699-1617
file
enclosures
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]

APPENDICES

APPENDIX A
Stormwater Discharge Outfall Monitoring Report

NCDEQ Division of Energy,Mineral and Land Resources
Stormwater Discharge Monitoring Report(DMR) Form for NCG 140000
Ready-Mixed Concrete
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitorini;Report(DMR) U21oad form within
30 days of receiving sampling results.Mail the original,signed hard copy of the DMR to the a ro riate DEMLR Re Tonal Office.
Mailed in DMRs must contain an original wetsignature.Electronic signatures will not be accepted for mailed in DMRs.This is a
requirement until the permittee has registered for eDMR for reporting.
Certificate of Coverage No.NCG140505 Person Collecting Samples:Eric Eubanks
Facility Name: Tri State Gunite-Monroe Facility Laboratory Name: Waypoint Analytical, Inc.
Facility County: Union Laboratory Cert.No.: 402
Discharge during this period:0 Yes ❑ No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions for any benchmark exceedances?❑Yes a No
If so,which Tier(I,II,or III)?
A copy of this DMR has been uploaded electronically via https:Hedocs.cleg.nc.gov/Forms/­SVn ❑Yes 01 No
Date Uploaded:
Part A:Analytical Monitoring Requirements for Outfalls with Industrial Activities—Benchmarks in
Parameter
Code Parameter Outfall SDO-1 Outfall Outfall Outfall Outfall
N/A Receiving Stream Class Class C
N/A Date Sample Collected MM/DD/YYYY 06/27/24
46529 24-Hour Rainfall in inches 0.2"
2400530 TSS in mg/L(100 or 50*) 292
pH in standard units(6.0-9.0 Fw,6.8- 11 .67
8.5 Sw)
Non-Polar Oil&Grease in 11 7
00552 mg/L(15)for drainage areas that use>55
gal/mo of new hydraulic oil on average
NCOIL Estimated New Motor/Hydraulic Oil
Usage in gal/month
Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW),Trout Waters(Tr)and Primary Nursery Areas(PNA)
have a benchmark TSS limit of .All other water classifications have a benchmark of 100 mg/L.
Eliotes(optional):
"I certify by my signature below,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,including the possibility of fines and imprisonment for
knowing violations."
7/15/24
Signature of Permittee or Delegated Authorized Individual Date

APPENDIX B
Stormwater Discharge Outfall Qualitative Monitoring Report

N.-c' -
Enyummental,
Qualm
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this farm,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-storrnwater-gps
Permit No.: N/C/G/1/4/0/0/0/0/ or Certificate of Coverage No.: N/C/G/1 /4/0/ 5/0/ 5/
Facility Name: TRI-STATE GUNITE-MONROE FACILITY
County: UNION Phone No. [phone]
Inspector: Eric Eubanks
Date of Inspection: ors LA
Time of Inspection: t a'S 0 I'S .
Total Event Precipitation(inches):
F"measurable
require qualitative monitoring to be performed during a"measurable storm event."
storm event"is a storm event that results in an actual discharge from the permitted site
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 DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. _5 UO Structure(pipe, ditch,etc.): p t
Receiving Stream:
Describe the industrial activities that occur within the o tfall drainage area: C'.eirvf<e� I Uc-kA
Pagel of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium,dark)as descriptors: .r ,n 1\
3. Odor: Describe any distinct odors that the discharge may have(i.e.,smells strongly of oil,weak
chlorine odor,etc.): [)on-2,
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 rl 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
0 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 0 3 4 5
7. Is there any foam in the stormwater discharge? 0 Yes No.
8. Is there an oil sheen in the stormwater discharge? 0- Yes No.
9. Is there evidence of erosion or deposition at the outfall? 0 Yes V No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam,oil sheen,or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

APPENDIX C
Laboratory Analytical Report

Waypoint, 449 5pringhroak Rd,Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
7/8/2024
Geological Resources, Inc.
Eric Eubanks
3502 Hayes Road
Monroe, NC, 28110
Ref: Analytical Testing
Lab Report Number: 24-180-0006
Client Project Description: Tri-State Gunite
GRI #5969
Dear Eric Eubanks:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/28/2024 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,
10 o"
Danyale Love
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 of 9

a •
WNy��I��.0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.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 00016/24-180-0006
Page 2 of 9

Waypoint.(2) 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.way po i nta na lyti c a I co
Sample Summary Table
Report Number: 24-180-0006
Client Project Description: Tri-State Gunite
GRI #5969
Lab No Client Sample ID Matrix Date Collected Date Received
96673 SDO-1 Aqueous 06/27/2024 12:56 06/28/2024 13:24
Page 3 of 9

Waypoint.(2) 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointana lyti ca I som
Summary of Detected Analytes
Project: Tri-State Gunite
Report Number: 24-180-0006
Client Sample ID Lab Sample ID
Method Parameters Result Units Report Limit Analyzed Qualifiers
SDO-1 V 96673
1664B-SGT SGT HEM: Non-Polar Material 11.7 mg/L 2.2 07/05/2024 11:07
2540D-2015 Total Suspended Solids 292 mg/L 0.6 07/03/2024 11:45
Page 4 of 9

Waypoint.0 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypointanalytical.com
00087
Geological Resources,Inc. Project Tri-State Gunite
Eric Eubanks Report Date : 07/08/2024
3502 Hayes Road Information : GRI#5969 Received :06/28/2024
Monroe, NC 28110
Report Number :24-180-0006 REPOR T OF A NA L YSIS
Lab No : 96673 Matrix: Aqueous
Sample ID :SDO-1 Sampled: 6/27/2024 12:56
Test Results Units MDL MQL DF Date/Time By Analytical
Analyzed Method
SGT HEM: Non-Polar Material 11.7 mg/L 2.2 5.8 1 07/05/24 11:07 GOB 1664B-SGT
Total Suspended Solids 292 mg/L 0.6 3.0 1 07/03/24 11:45 GOB 2540D-2015
Qualifiers/ DF Dilution Factor MQL Method Quantitation Limit
Definitions
Page 5 of 9

•
Waypoint, 449 Springl,rook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypoi ntana lytica l.com
Quality Control Data
Client ID: Geological Resources,Inc.
Project Description: Tri-State Gunite
Report No: 24-180-0006
QC Analytical Batch: V49239
Analysis Method: 1664B-SGT
Analysis Description: Oil and Grease-TPH
Lab Reagent Blank LRB Matrix: AQU
Associated Lab Samples: 96673
Blank MDL MQL Analyzed
Parameter Units Result
SGT HEM: Non-Polar Material mg/L <1.9 1.9 5.0 07/05/24 11:07
Ongoing Precision and Recovery OPR
Spike OPR % Analyzed %Rec Qualifie
Parameter Units Conc. Result Recovery Limits
SGT HEM: Non-Polar Material mg/L 20.0 26.3 132 07/05/24 11:07 64-132
Date: 07/08/2024 04:37 PM Page 1 of 2
Page 6 of 9

•
Waypoint, 449 Springl,rook Rd, Charlotte, NC 28217
Main 704.529.6364
ANALYTICAL www.waypoi ntana lytica l.com
Quality Control Data
Client ID: Geological Resources,Inc.
Project Description: Tri-State Gunite
Report No: 24-180-0006
QC Analytical Batch: V49210
Analysis Method: 2540D-2015
Analysis Description: Total Suspended Solids
Lab Reagent Blank LRB Matrix: AQU
Associated Lab Samples: 96673
Blank MDL MQL Analyzed
Parameter Units Result
Total Suspended Solids mg/L 0.6 0.5 2.5 07/03/24 11:45
Laboratory Control Sample LCS
Spike LCS LCS%Rec %Rec
Parameter Units Conc. Result Limits
Total Suspended Solids mg/L 477 504 106 90-110
Duplicate V 96978-DUP
Result DUP RPD Max RPD Analyzed
Parameter Units Result
Total Suspended Solids mg/L 2140 2180 1.8 10.0 07/03/24 11:45
Date: 07/08/2024 04:37 PM Page 2 of 2
Page 7 of 9

s •
8217
WayPAoi n�. 449 Springhrook Rd,Charlotte,70 5 .6364
Main 7p4.529.63fi4
N A LYT I C A L www.waypointanalytical.com
Shipment Receipt Form
Customer Number:00087
Customer Name: Geological Resources, Inc.
Report Number: 24-180-0006
Shipping Method
0 Fed Ex 0 US Postal # Lab 0 Other :
0 UPS 0 Client 0 Courier Thermometer ID: IRT15 3.8C
Shipping container/cooler uncompromised? 0 Yes 0 No
Number of coolers/boxes received F
Custody seals intact on shipping container/cooler? 0 Yes 0 No # Not Present
Custody seals intact on sample bottles? 0 Yes 0 No # Not Present
Chain of Custody (COC) present? # Yes 0 No
COC agrees with sample Iabel(s)? # Yes 0 No
COC properly completed # Yes 0 No
Samples in proper containers? U Yes 0 No
Sample containers intact? 0 Yes 0 No
Sufficient sample volume for indicated test(s)? U Yes 0 No
All samples received within holding time? # Yes 0 No
Cooler temperature in compliance? 0 Yes 0 No 0 Not Present
Cooler/Samples arrived at the laboratory on ice. U Yes 0 No
Samples were considered acceptable as cooling
process had begun.
Water- Sample containers properly preserved 0 Yes 0 No 0 N/A
Water- VOA vials free of headspace 0 Yes 0 No N/A
Trip Blanks received with VOAs 0 Yes 0 No N/A
Soil VOA method 5035—compliance criteria met 0 Yes 0 No N/A
F_ High concentration container (48 hr) F Low concentration EnCore samplers (48 hr)
F_ High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
Special precautions or instructions included? 0 Yes 0 No
Comments:
Signature: ngelo Norvell Date &Time: 06/28/2024 15:49:29
Page 8 of 9

Client NamelAddress Client Project Manager/Contact Billing Information For Laboratory Use Only
GRI _ _ Same
Cust #87
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Project Description Project/Site Location(City/State) RUSH-Additional charges apply Method of Shipment Matrix Key
Tri-State Gunite Monroe, INC Special Detection Limits) Fed Ex MUPS �USPS WW --Wastewater GW-Groundwater
Date Results Needed Courier Client Drop Off DW-Drinking Water 5-Soil/Solid 0-ail
P-Product M-Misc
other
Project Number Project Manager Phone p Project Manager Email Purchase order Number Site/Facility ID P
GRI #5959 704_845.4019 �geologicalresourcesinc.com GRI #5959
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Wayp+'nt 01, C H2504 pH[Z
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ANALYTICAL o � q � O F NaOH pH}10
444 Springbrook Road Unless noted,all Containers per V y �' F HNO3 pH�2
Charlotte.NC 28217 G HCi pHc2
Table I1 of 40 LFR Part i36 fl
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For Laboratory Use only Sampled by(Name Print) Client Remarks/Comments
Ice Custody Lab Comments _
Seais c� L—,-A� 1
Relinquished by:(SIGN E) bate Time Received by: IGNATURE) Hate Time r
Blank/Cooler Temp Relinquished by;(SIGNATURE) Date Time Receive by:(SIGNATURE) Date Time
qui hed by:{5 ATURE] Date Time Received b ATURE} D t T' e
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Peterson, Kathryn S
From: Eric Eubanks <[e-mail]>
Sent: Monday, July 29, 2024 5:31 PM
To: Kay, Lily C; Eplin, Jerry W
Cc: Rohit Shetty
Subject: RE: [External] 2Q 2024 DMR - Tri-State Gunite
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Yes,this would push them to Tier 3 for TSS. I have informed Erin Wyndham with Tri-State.
Best Regards,
Eric M. Eubanks, P.G.
Project Manager
Geological Resources, Inc.
3502 Hayes Road I Monroe, NC 28110 1 website I facebook
704-845-4010-office 1704-845-4012-fax [phone]-cell
From: Kay, Lily C<[e-mail]>
Sent: Monday,July 29, 2024 9:22 AM
To: Eric Eubanks<[e-mail]>; Eplin,Jerry W<[e-mail]>
Cc: Rohit Shetty<[e-mail]>
Subject: RE: [External] 2Q 2024 DMR-Tri-State Gunite
So,are they in Tier 3 for TSS?
Z4 lacy
Environmental Senior Specialist
Land Quality Division
Division of Energy, Mineral, and Land Resources
North Carolina Department of Environmental Quality
Phone: [phone]
Email: [e-mail]
Physical and Mailing Address: 610 E. Center Ave
Mooresville, NC 28115
D,- E
Doppelnir..d nl Fnwwnir dal CNalilry
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
From: Eric Eubanks<[e-mail]>
Sent: Friday,July 26, 2024 4:17 PM
1

To: Eplin,Jerry W<[e-mail]>
Cc: Kay, Lily C<[e-mail]>; Rohit Shetty<[e-mail]>
Subject: [External] 2Q 2024 DMR-Tri-State Gunite
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Hi Mr. Eplin,
Here is the 2Q 2024 DMR for Tri-State Gunite.This report has also been uploaded online at the NPDES Permit DMR
Upload page (https://edocs.deq.nc.gov/Forms/SW-DMR). Please let me know if you would like us to mail in the
hard copy with the wet signatures
Best Regards,
Eric M. Eubanks, P.G.
Project Manager
Geological Resources, Inc.
3502 Hayes Road I Monroe, NC 28110 1 website I facebook
704-845-4010-office 1704-845-4012-fax [phone]-cell
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
2