NCG020330 DMR SW

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCG 020330
4th Quarter Mine Dewatering Sample
FACILITY NAME 3M Pittsboro
PERSON COLLECTING SAMPLE(S) Stanley B. Carter
CERTIFIED LABORATORY(S) Pace Lab # 67
Lab # 40
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2015
(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 Chatham
PHONE NO. C219 642-4009
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall Date 50050
No. Sample Total
Collected Flow (if app.)
�!
50050
00530
00076
00545
00400
00400
Total
Rainfall
Total
Suspended
Solids
Turbidity
(NTU)
Settleable
Solids
pH
standard units
pH
New Motor
Oil Usage
mo/dd/ r MMG
inches
m /l
m /l
MI/I
6-9
unit
al/mo
003 06/02/2015 37.28
0.27
ND
0.51
ND
8.55**
*
003 Mme Dewatering Outfall the flow is measured quarterly with meters and reported as volume discharged
**pH reading done in house.apprx. 10 minutes after sample taken.
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? X_ yes no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Reouirements
Outfall Date
No. Sample
Collected
50050
- - ---- ---------
00556
00530
00400
Total Flow
(ifapplicable)
,I
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
(Method 1664
SGT -HEM), if
a 1.
Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/dd/ r
,MG
inches
m /l
m /l
unit
al/mo
Form SWU-247, last revised 21212012
Page .1 of 2

STORM EVENT CHARACTERISTICS:
Date 06/02/2015
Total Event Precipitation (inches): _0.27
Event Duration (hours): _12 (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
l
(Date)
Form S WU-247, last revised 2/2/2012
Page 2 of 2 .

t
STORMWATER DISCHARGE OUTFALL (SDO)
RECEIVEADNITORING REPORT
Permit Number NCG_020330 JUN 2 9 2015 SAMPLES COLLECTED DURING CALENDAR YEAR: 2015
(This monitoring report shall be received by the Division no later than 30 days from
CENTRAL FILES the date the facility receives the sampling results from the laboratory.)
DWR SECTION
FACILITY NAME 3M Pittsboro
PERSON COLLECTING SAMPLE(S) Stanley B. Carter
CERTIFIED LABORATORY(S) Pace Lab # 67
Lab # 40
Part A: Specific Monitoring Requirements
COUNTY Chatham
PHONE NO. L919J 642-4009
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
]NO..
Date
Sample
Collected
50050
00556
00530
00076
00545
00400
Toftal
(if'applicable)
Flow
{
Total Total Total
Flow (if app.) Rainfall Suspended
Solids
Turbidity
(NTU)
Settleable
Solids
pH
standard units
pH
New Motor
Oil Usage
mo/dd/ r
mo/dd/ r
MMG
inches
m /l
MUI
6-9
006 6/02/2015
002
6/02/2015
0.306
0.27
16.3
6
ND
004
6/02/2015
0.058
0.27
50.7
5.4
ND
005
6/02/2015
0.350
.0.27
ND
1.4
ND
Does this facility perform Vehicle Maintenance Activities -using more than 55 gallons of new motor oil per month? X_ yes no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activity Mnnitnrina Ranniramante
Outfall Date'
No. Sample
Collected
50050
00556
11,
00530
00400
Toftal
(if'applicable)
Flow
{
Total
Rainfall
Oil & Grease
(if appl.)
Non',=polar
O&G/TPA
(Method 1664
SGT HEM), if
appL
Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/dd/ r
MG
inches
mg/1
mg/1
unitgal/mo
006 6/02/2015
0.013
0.27
ND
21.6
.6.49
S&O
Form SW -247, last revised 2/2/2012
Page 1 of 2

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 6/02/2015 Attn: Central Files
Total Event Precipitation (inches): 0.27 1617 Mail Service Center
Event Duration (hours): 12 (only if applicable — see permit.) Raleigh, North Carolina 27699-1617
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"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, elief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibilit of mes andimps isonment for knowing violations."
(Signature of Permittee)
� g
(Date)
Form SWU-247, last revised 2/2/2012
Page 2 of 2