NCG080057_DMR_20210304

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Resources General Permit No. NCGO80000
CERTIFICATE OF COVERAGE NO. N00080 0 5 7
FACILITY NAME GL Wilson Building Company
COUNTY Iredell
PERSON COLLECTING SAMPLES David Stroud
LABORATORY Statesville Analytical Lab Cart. q 37755
Comments on sample collection or analysis:
Date submitted 03/04/2021
SAMPLE COLLECTION YEAR 2021
RE�+ SAM E PERIOD 0 Jan -June ❑ July -Dec
4e !�/� ) or ❑Monthly'_ (month)
MAR 2 7 �s�CHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
CENTRAL FIL€s ❑Other
DWR SECTION
PLEASE REMEMBER TO SIGN ON THE REVERSE --)
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?❑ yes ❑✓ no
(if yes, report your analytical results in the table immediately below)
Part A: Vehicle Maintenance Areas Monitoring Requirements (If applicable)
❑ No discharge this period'
Outfall
No.
01
Benchmark
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
50 or 100 see permit
pH,
Standard units
Within 6.0 — 9.0
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
15
New Motor Oil Usage,
Annual average gal/mo
02/21/2021
<3.356
<2
11.2
40
Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
Outfall
No.
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
15
50 or 100 see permit
6.0 — 9.0
1 For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
SWU-250 last revised April 11, 2013
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