NCG020330 DMR SW (7)

STORMWATER DISCHARGE OUTFALL(SDO)
MONITORING REPORT
Permit Number NCG , SAMPLES COLLECTED DURING CALENDAR YEAR: 2016
2nd Quarter Mine Dewatering Sample (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.)
FACILITY NAME 3M Pittsboro COUNTY Chatham
PERSON COLLECTING SAMPLE(S) Stanley B.Carter PHONE NO.( 919 )642-4009
CERTIFIED LABORATORY(S) Pace Lab# 67 RECEIVED
Lab# 40
J U L 0 5 2016 SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Part A: Specific Monitoring Requirements CENTRAL FILES
DWR SECTION
Outfall Date 50050 00530 00076 00545 00400
No. Sample Total Total Total Turbidity Settleable pH
Collected Flow(if app.) Rainfall Suspended (NTU) Solids standard units
Solids
mo/dd/yr MMG inches mg/1 M1/1 6-9
003 6/22/2016 18.31 4.0 3.7 ND 8.59**
*003 Mine Dewatering Outfall the flow is measured quarterly with meters and reported as volume discharged
**pH reading done in house apprx. 15 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 Requirements
Outfall Date 50050 00556 00530 00400
No. Sample Total Flow Total Oil&Grease Non-polar Total pH New Motor
Collected (if applicable) Rainfall (if appl.) O&G/TPH Suspended Oil Usage
(Method 1664 Solids
SGT-HEM),if
appl.
mo/dd/yr MG inches mg/1 mg/1 unit gal/mo
Form SWU-247,last revised 2/2/2012
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STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 6/22/2016 Attn: Central Files
Total Event Precipitation(inches): 1617 Mail Service Center
Event Duration(hours): (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 belief,true,accurate,and complete. I am aware that there are significant penalties for submitting false information,
including the possib' 'ty of fines and imprisonment for knowing violations."
6LL1 / / ' V
(Signature of Permittee) (D e)2
Form SWU-247,last revised 2/2/2012
Page 2 of 2