NCS000096_COMPLETE FILE - HISTORICAL_20191106

STORMWATER DIVISION 60DING SHEET- -...
RESCISSIONS.
PERMIT NO.
DOC7YPE
COMPLETE FILE -HISTORICAL
DATE OF
RESCISSION
YYYYMMDD

A ALBEMARLEG
Kings Mountain Facility
348 Holiday Inn Drive
Kings Mountain NC 28086
November 1, 2019
Central Files - Stormwater
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Semiannual Stormwater Discharge Summary Report
Albemarle — Permit NCS000096
Kings Mountain, Cleveland County, NC
Certified Mail 7016 2070 0000 1239 6927
Dear Sir or Madam:
RECEIVED
NOV 0-6 2019
CI NYRAL FILES
DWR SECTION
Please find attached a Semi -Annual Stormwater Discharge Outfall (SDO) Monitoring Report for
the Albemarle facility located in Kings Mountain, North Carolina. This report was prepared in
accordance with the site's General Stormwater Permit effective on November 1, 2009 and
covers the Monitoring Period of May 2019 — October 2019.
Based on the sampling results summarized herein, it appears that the site has met its
benchmark goals during the reporting period, with one exception:
A pH of 9.20 was measured at outfall 005A on October 13, 2019, slightly higher than the'
benchmark range of 6.0 — 9.0 units. An additional representative rain event was
monitored on 10121/19, which produced results within the benchmark range.
In accordance with Tier One requirements as outlined in our permit, we performed a facility
inspection on October 16, 2019 and conducted other investigations to determine the probable
cause of this event.
We have seen higher pH at this outfall in the past and believe the primary cause was calcium
carbonate "mud" byproduct migrating from the indoor loading bay onto the adjacent outdoor
concrete pad. In response to the prior event, we implemented measures to improve our
containment of this mud, including engineering controls to reduce migration, and a cleaning
schedule for the outdoor concrete pad. These measures have largely been effective, and we
believe they will continue to be adequate under normal circumstances.
We believe the primary cause of the 10/13/19 pH result was that the rain event of October 13
occurred after an unusually long drought — it was the first representative rain event since August
27, 2019 (47 days). This prolonged time allowed material to accumulate in cracks and crevices
on the concrete pad.
Our inspection and investigation did not reveal any other obvious factors that would have
contributed to the elevated pH. In addition, subsequent monitoring of a representative rain
event on 10/21/19 (and a non -representative rain event on 10/16/19), showed pH within the

AALBEMARLE 0
Kings Mountain Facility
348 Holiday Inn Drive
Kings Mountain NC 28086
benchmark range. For these reasons we believe our current management practices are
effective.
However,,we have undertaken a three-phase project to further reduce the possibility of calcium
carbonate byproduct migration from the area where it is produced to areas that can affect
stormwater.
• Phase 1 — completed September 2019 — provide a closed tank to receive process
washes, which eliminates oversplash in the indoor collection bay and migration out of it
to the concrete pad
• Phase 2 — planned for 1 Q 2020 — install equipment to dry and pelletize the calcium
carbonate material. The calcium carbonate material is currently produced as a sludge
which makes containment within the indoor bay more challenging
• Phase 3 — consider installing conveyances and a silo to receive and transfer dried
calcium carbonate material, rather than discharging it to an open dumpster
Should you have any questions or need additional information related to this data, please
con ct John Kuhn at 704-734-2708.
J nKVa
SE M

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000096
FACILITY NAME Albemarle, Kings Mountain
PERSON COLLECTING SAMPLE(S) -. D v- �� ^
CERTIFIED LABORATORY(S) 7 _ Lab # 140
Lab #
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 1)1019
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
COUNTY Cleveland
PHONE NO. [phone]
aREO
ATURE OF PERMITTEE OR DESIGNEE
UIRED ON PAGE 2.
Outfall
No.
Date
Sample
Collected
50050
50030
00400
Total
Flow if a
Total
Rainfall
Total Suspended
Solids
pH
mo/dd/yr
MG
inches
m /l
unit
�o ,. t9
a.C- "P_
__7 .Ot 1
ops Fr
f r3 1
0.31
to , 5 f
61. �
G .aU
oc> f
+3 r
O. Ofv
_ S f
lJ.1
`7.59
Egos
O. 30
D .9
g.-7-7
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? ()yes
(if yes, complete Part B) {�
fir (0bL0llk e�vE.%} "A's 4%Z l.rS 111 vQJ SJS n n
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00556
00530
00400
Total Flow
(if applicable)
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&GITPH
(Method 1664
SGT-HEM), if
appl.
Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/ddl r
MG
inches
mg/1
mo
unit
al/mo
Form SWU-247, last revised 611212015
Page I of 2

STORM EVENT CHARACTERISTICS:
Date id 13 I dt
Total Event Precipitation (inches): Q•Sf
Event Duration (hours): S (only if applicable — see permit.)
(if more than one storm event was sampled)
Date r0 i 'i
Total Event Precipitation (inches): o -9S
Event Duration (hours): 7 (only if applicable — see permit.)
Mail Original and one copy to:
Division of Energy Mineral and Land Resources
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"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. 1 am aware that there are significant penalties for submitting false information,
including t>e possibility of fy)1s W imprisonment for knowing violations."
(Signature of Permittee) (Date)
i3 +`l ii tss
%0`t 00 P_LR `' — r\c^ Ivat thy, IV'`I V 3cD e S-e,-C:1-A
rl n o.�9 •� V
S-7 11r-
Form SWU-247, last revised 611212015
Page 2 of 2