NCG240019_DMR_20200826

Quarterly Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG240000
Date submitted 8/26/2020
CERTIFICATE OF COVERAGE NO. NCG240019
FACILITY NAME Mecklenburg County Compost Central (new)
COUNTY Mecklenburg
PERSON COLLECTING SAMPLES Khaliem Adams
LABORATORY: Pace Analytical Services Lab Cert. # 192
Comments on sample collection or analysis:
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2020
SAMPLE QUARTER ❑ Jan -March ❑ April -June ❑ July -Sept ❑ Oct -Dec
or ® Monthly) August (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water supply [—]SA
❑Other
Total event rainfa112 0.31 in or ❑ No discharge this Period3
Date Sample
Collected)
(mo/dd/yr)
Outfall No.
TSS
COD
Fecal
coliform
Total
nitrogen
Total
phosphorus
Total
copper
Total
lead
Total
zinc
pH
Parameter
benchmarks
100 mg/O
120 mg/L
1000 col./100 mL
30 mg/L
2 mg/L
0.010 mg/L
0.075 mg/L
0.126 mg/L
6-9
8/11/2020
1
11.0
98.9
6000
2.5
1.4
<0.0050
<0.0050
<0.010
7.73
1 Monthly sampling (instead of quarterly) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
ZThe total precipitation must be recorded using data from an on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
3 For sampling periods with no discharge, you must still submit this discharge monitoring report with a checkmark here.
'The TSS benchmark value is 100 mg/L; except when discharging to ORW, HQW, Trout, and PNA waters in which case the benchmark is 50 mg/L.
Permit Date: 10/1/2011-9/30/2016 Last Revised 12/02/11
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Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new motor oil/month.
Date Sample
Collected'
(mo/dd/yr)
Outfall No.
pH
TPH using method
1664A SGT-HEM
TSS
Total
Rainfall2
Check
If No
Flow
This
Period
Average New Motor Oil Usage
6-9
15 mg/L
100 mg/O
-
-
8/11/2020
1
7.73
<5.0
11.0
0.31
75 gal/month
Footnotes from Part A also apply to this Part B
FOR PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART 11 SECTION B.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES 4 NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ® NO ❑
REGIONAL OFFICE CONTACT NAME: Teresa Bradford
Mail an original and one copv of this DMR, including all "No Discharge" reports, within_30 days_of receipt of the lab results for at end of monitoring period
in the case of "No Discharae" reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"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."
elzzv
(Da )
Date: 10/1/2011-9/30/2016
Last Revised 12/02/11
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N C
Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance onfilling out lhisform, please visit https:Hdeg.nc.gov/about/divisioiis/energy-mineral-land-
resources/energv-m ineral-land-permits/stormwater-permits/nodes-industrial-sw#tab-4
Time of Inspection:
Total Event Precipitation (inches): 0.31
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event" is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description: D/ /1_ /y
Outfall No. �_ Structure (pipe, ditch, etc.): r U t I �i(�
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area: Vehicip, rn a t m —
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SWU-242, Last modified 07/28/2017

2. Color: Describe the color of
(light, medium, dark) as descriptors: _
basic colors (recj, brown, blue, etc.) and tint
n 11)i A � — h W Yl
3. Odor: Describ . y distinct o or�hat th di charg may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): 6 �� e� +o 0StNl�
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 2 3 (4) 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there anfoam in the stormwater discharge? O Yes �e5 No. 0
Y g -
8. Is there an oil sheen in the stormwater discharge? 0Yes No. D.
9. Is there evidence of erosion or deposition at the outfall? o Yes CVNo.
10. Other Obvio s Indicators of Stormwater Pollution:
P\Ar &t4io-ru
List and describe 0
Note: Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
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SWU-242, Last modified 07/28/2017