NCG140470_2023 DMR_20230421

NCDEQ Division of Energy, Mineral and Land Resources
Wastewater Discharge Monitoring Report (DMR) Form for NCG140000
Ready-Mixed Concrete
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR)Upload form within
30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Mailed in DMRs must contain an original wet signature. 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. NCG140470 Person Collecting Samples:Geoffrey Murphrey
Facility Name: Carolina Sunrock-Kittrell Concrete Laboratory Name: Eurofins
Facility County: Vance Laboratory Cert.No.: 269 __
Discharge during this period:❑D Yes ❑ No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions for any benchmark exceedances?0 Yes ❑ No
If so,which Tier(I,II,or Ill)?
A copy of this DMR has been uploaded electronically via https://edocs.deq.nc.gov/Forms/SW-DMR 0 Yes ❑ No
Date Uploaded:
Part A:Analytical Monitoring Requirements for Outfalls with Industrial Activities—Effluent Limits in(Red)
Parameter Parameter Outfall Outfall Outfall Outfall Outfall
Code
N/A Receiving Stream Class WSIV;NSW
N/A Date Sample Collected MM/DD/YYYY 3/2/2023
82220 Daily Flow Rate in cfs(50%of 7Q10
for HQW/ORW)
C0530 TSS in mg/L(30,20,or 10*) 52.8
00545 Settleable Solids in HQW,ORW,SA, <0.
56,Tr&PNA(5 ml./L)
00400 pH in standard units(6.0-9.0 7.8
freshwater,6.8-8.5 saltwater)
Non-Polar Oil&Grease in mg/L(N/A, .
00552 but samples above 15 require tiered
responses)
* Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW)have a TSS limit of 20 mg/L,outfalls to Trout Waters(Tr)and
Primary Nursery Areas(PNA)have a TSS limit of 10 mg/L.All other water classifications have a benchmark of 30 mg/L.
Notes(optional):TSS on March 2.2023 during the heavy rainlall event(0.86.)was 52.8 mgll in excess of the process water benchmark limit of 30 moil.The norhrompliant sample can be altributed to an exposed ddchhne leading from the concrete plant to the SW pond and plant mai
"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 viola' ns.°
�j 4/21/2023
Signature of r itte or Delegated Authorized Individual Date

Carolina Sunrock- Kittrell Concrete eDMR NCG140470 and Kittrell Asphalt eDMR NCG160243 for WW
Sample Taken Q1 2023 at Stormwater Pond Outfall 001
Action Plan to Reduce TSS Below Benchmark Limits in NPDES General Stormwater Permit (both plants
drain to this outfall): `
TSS on March 2,2023 during the heavy rainfall event (0.86")was 52.8 mg/I in excess of the process
water benchmark limit of 30 mg/I. All other parameters were below permitted limits.The non-
compliant TSS level can be attributed to an exposed ditchline leading from the concrete plant to the SW
pond and plant maintenance/wash down from the asphalt plant site that also drains to the SW Pond; an
action plan is underway to stabilize the concrete ditchline and to clean up on the asphalt plant site by
adding a containment block wall for the fines disposal area, increased frequency of clean out of the fines
catchment area,and removal of sediments from the forebay of the SW Pond.This action plan will
completed by end of Q2.