8003_Rowan_MSWLF_CDLF_NotificationofDetections_FID1747656_20221118

NC DEQ 14-Day Notification of Groundwater
Division of Waste Management - Solid Waste Protection Standard Exceedance(s)
per rule: 15A NCAC 136.1633(c)(1)
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed applicable groundwater protection standards.
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDEQ-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Golder Associates NC, Inc. on behalf of Rowan County
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: Darrem Cox Phone: [phone]
E-mail: [e-mail]
Actual sampling dates (e.g.,
Facility name: Facility Address: Facility Permit # October 20-24, 2006)
Rowan County Landfill 789 Campbell Road 80-03 August 15 - 17, 2022 and
(Active MSW) Woodleaf, NC 27054 October 5, 2022
Environmental Status: (Check all that apply)
❑ Initial/Background Monitoring Detection Monitoring �X Assessment Monitoring ❑ Corrective Action
Additional Information:
❑X A notification of values exceeding a groundwater protection standard as defined in 15A NCAC 13B .1634(g)(h) is attached. It includes a list of
groundwater monitoring points, dates, analytical values, NC 2L groundwater standard, NC Solid Waste GWPS and preliminary analysis of the
cause and significance of any concentration.
❑X A re -sampling event was conducted to confirm the exceedances.
❑X Alternate Source Demonstration(s) have been approved for the following constituents with report date: Site specific GPS for
Vanadium and Thallium approved by NCDEQ on June 5, 2018
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Rachel P. Kirkman, PG Director and Geologist 336-852-4903
Facility Representative Name (Print) Title
-V Q _A,� 10 _ ?P .-ic,,,,,
Signature
Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NO 27407
Facility Representative Address
C-399/C-2862
(Area Code) Telephone Number
Affix NC Licensed/Professional Geologist or Professional
Engineer Seal
Date
NC PG/PE Firm License Number (if applicable effective May 1, 2009)
Revised 6/2016
hlYj P.
yob`- 5.2

XX%I) GOLDER
November 18, 2022
Ms. Jackie Drummond
Department of Environmental Quality
Division of Waste Management, Solid Waste Section
2090 US Highway 70
Swannanoa, NC 28778
14-DAY NOTIFICATION
ROWAN COUNTY ACTIVE MSW AND C&D LANDFILL, PERMIT NO. 80-03
ROWAN COUNTY, NORTH CAROLINA
Dear Jackie,
GL21456818.001
On behalf of Rowan County, Golder Associates NC, Inc., a member of WSP (Golder), is submitting this 14-Day
Notification as required by North Carolina Solid Waste Management Regulation (NCSWMR) 15A North Carolina
Administrative Code (NCAC) 13B .1633(c)(1) and 13B .0545 (d)(2). The 14-Day Notification of Groundwater
Protection Standard Exceedance(s) form is included as Attachment 1.
1.0 14-DAY NOTIFICATION [15A NCAC 13B .1633(C)(1)]
Table 1 and Table 2 (shown below) summarize the newly detected concentrations of NC Appendix I constituents
that were detected above their respective NC 2L Groundwater Standards or Solid Waste Section Groundwater
Protection Standards (GWPSs) during the second semi-annual water quality monitoring event conducted at the
Rowan County active municipal solid waste (MSW) landfill and closed C&D landfill on August 15 - 17, 2022. Per
15A NCAC 02L .0202 (b)(1), "where the standard (i.e., the NC 2L Standard) for a substance is less than the
practical quantitation limit (PQL or in this case the MRL), the detection of that substance at or above the PQL
constitutes a violation of the standard." The NC 2L Standard for cobalt is 1 micrograms per liter (ug/L); the PQL
for cobalt is 10 ug/L. As presented, during the 2022 second semi-annual water quality monitoring event, the
cobalt concentrations were reported below the respective PQLs and are considered estimated (i.e., not
quantifiable).
As referenced above, the estimated concentrations below PQLs detected during the August sampling event do
not constitute violations of the NC 2L Groundwater Standards. Laboratory certificates -of -analysis re submitted
under separate cover along with well locations maps as part of the second semi-annual water quality monitoring
report. Other exceedances have been reported in previous 14-Day Notifications.
Golder Associates NC, Inc.
5B Oak Branch Drive, Greensboro, North Carolina, USA 27407
Engineering Lic. No. C-2862/Geology Lic. No. C-399
Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity.
T: [phone] F: [phone]
golder.com

Ms. Jackie Drummond
GL21456818.001
Department of Environmental Quality November 18, 2022
Table 1: 14-Day Notifications — MSW Facility
Notes:
practice
mom MSW
Facility
Constituent
Location
Total
Result
(Ng/L)
Dissolved
Result
(Ng/L)
PQL
(Ng/L)
NC2L
(pg/L)
Approved
ASD
Cobalt
MW-1
1.41 J
--
10
1
No
Cobalt
MW-20
9.08 J
--
10
1
No
Cobalt
MW-23
1.58 J
--
10
1
No
pg/L = micrograms per liter, ND = not detected above laboratory detection limit, J = estimated value bi
iI auantitation limit (PQL). -- = no data available
Table 2: 14-Day Notifications — C&D Facility
Constituent
Location
Total
Dissolved
PQL
NC2L(p
Approved
Result
Result
(fag/L)
g/L)
ASD
(Ng/L)
(Ng/L)
Chromium
MW-18R2
11.3
--
10
10
No
Benzene
MW-19R
1.4
--
1
1
No
-low
Notes: pg/L = micrograms per liter, ND = not detected above laboratory detection limit, J = estimated value below
practical auantitation limit (PQL), -- = no data available
2.0 CLOSING
Unless otherwise directed by NC DEQ, Rowan County will continue monitoring the uppermost aquifer beneath the
MSW facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A
NCAC 13B .1633. Rowan County will submit an addendum to the January 2022 Assessment Monitoring Work
Plan for the C&D Landfill within 90 days per Title 15A NCAC 13B. 0545.(a)(2) to address the new above -standard
detections at MW-18R2 and MW-19R. The next compliance monitoring event for this facility is tentatively
scheduled for February 2023. If you have any questions, please contact the undersigned at 336-852-4903.
\\\I) GOLDER

Ms. Jackie Drummond
Department of Environmental Quality
Sincerely,
Golder Associates NC, Inc.
��v v✓
Darren Cox Rachel P. Kirkman, PG
Associate Consultant and Environmental Scientist Director and Geologist
DEC/RPK/dec
CC: Craig Powers, Director of Engineering and Environmental Services, 1102 N
Long Street Extension, East Spencer, NC 28039,
[e-mail]
Jeff Boyd, Landfill Manager, Rowan County Environmental Management,
1102 N Long Street Extension, Salisbury, NC 28144,
[e-mail]
Mike Plummer, PE, HDR, 440 South Church Street, loth Floor, Charlotte,
NC 28202, [e-mail]
Attachment: Attachment 1 —14-Day Notification of Groundwater Protection Standard
Exceedance Form
https://goiderassociates.sharepoint.com/sites/163204/project files/5 technical work/phase 101 active 2nd sa 2022/200 deliv/200 draft issued/2022
august notification asd rowan active.docx
GL21456818.001
November 18, 2022
W,I) GOLDER
3