HomeMy WebLinkAboutNCG140089 DMR SWSTORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING F
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO: NCG14 0 0 8 9
FACILITY NAME: Chandler Concrete Company. Inc. - Durham #603
PERSON COLLECTING SAMPLES: Anthony Warash RECEIVED
CEI !iA
CERTIFIED LABORATORY:Paceace AnalVtical Lab #633
OPTIONAL INFO: - NOV 0 2 2015
CENTRAL FILES
Part A: Stormwater Monitoring Requirements DWR SECTION
SAMPLE COLLECTION YEAR:2016
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Durham
!l i
X Orig - State
0 Copy - State
0 Copy - Plant
0 Copy - File
PHONE NO. ( 336) 226 - 1181
ADD TO LISTSERVE? ❑YES ®NO EMAIL: _
DISCHARGING TO CLASS: [:]SA ❑HQW ❑PNA ❑Trout ®OtherWS-V,
NSW
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
For each sampled measurable storm event the total precipitation must be recorded using data from an on-site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
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Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total 4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in
2
Tier 2 Sampling
-
-
6-92
1002'3
-
-
-
-
1
8/31/15
6.9
ND
120
.75
N
N/A
2
8/31/15
7.2
ND
120
.75
N
N/A
Discharge due to storm event/PW commingles with SW
SW and PW samples share same outfall
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
For each sampled measurable storm event the total precipitation must be recorded using data from an on-site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
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Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
In Tier 2
PH TPH using method Total Suspended Event Total New Motor Oil
a Monthly
(Standard 1664A SGT -HEM Solids Duration Rainfall Usage
Monitoring?
Units) (mg/L) (mg/L) (minutes) (in) (gal/month) (y/n)
# of Months
in Tier 2
2
Sampling
6-92 152 1002' - - - -
-
Testing Not Required — No vehicle maintenance performed on site
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one copv of this DMR (includine all "No Flow' & "No Dischame" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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 respe�sible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete
am aware that t r ni ' nt pe Ities for submitting false information, including the possibility of fles and imprisonment for knowing violations.
(Signa 're of Permi ee) (D e)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
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