NCG140100 DMR WW

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PROCESS WASTEWATER — Quarterly Discharge Monitoring Report 0 Copy State
GENERAL PERMIT NO. NCG140000 0 Copy - Plant
0 Copy - File
CERTIFICATE OF COVERAGE NO. NCG14 010 0 SAMPLE COLLECTION YEAR: 2015
FACILITY NAME: Chandler Concrete Company - Blowing Rock #502 SAMPLE QUARTER: []Jul -Sept []Oct -Dec []Jan -March ®April -June
PERSON COLLECTING SAMPLES: REG- EIVED
CERTIFIED LABORATORY:Blue Ridge Labs Lab #275
LIMIT VIOLATIONS? YES ® NO ® JUL 81 2015
CENTRAL FILES
DWR SECTION
Part A: Wastewater Monitoring Requirements
COUNTY: Watauga
PHONE NO. (g28) 264 - 4843
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ®Trout ®Other: WS -IV
OPTIONAL INFO:
Date Sample
1
Outfall No. Collected
(mm/dd/yr)
Type of Wastewater
z
RMMD)
(VE, ,
Total Suspended
pH
Solids
(standard)
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A Total Flow
Duration 7
S
g/L) (minutes) (gallons/day)
(mg/L)
- -
-
6-93.4 303,5
53
(15)6 - -
1 NO FLOW — APR
VE RM MD
- -
-
N/A - -
1 NO FLOW — MAY
VE RM MD
- -
-
N/A -
1 NO FLOW—JUN
VE RM MD I-
-
-
N/A - -
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
Z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 I an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
7 Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 0213.0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case-by-case basis.
Permit Date: 7/1/2010-06/30/2016 Last Revised 07/13/11
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MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW". "NO DISCHARGE") 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
[phone]
Due to 2 consecutive exceedances on our TSS levels during the the 1st and 2n° quarter 2013, we have instituted monthly monitoring until we achieve 3 consecutive samples within normal TSS
parameters. This facility is in low production:
Oct 8'* -1s` / 3 qualifying samples taken, sample was below threshold
No qualifying discharges in January. February or March 2014. We will continue to monitor monthly until we achieve 3 consecutive satisfactory results.
Any testing that can be performed, will be performed and reported as reauired.
7/30/14 Our Plant manager took Storm Water Samples on 5/15/14 during a flash flood. The plant had 2.2" of rain in 3 hours. The plant's runoff controls were not effective due primarily to
the volume. We have exceeded the TSS threshold by 50%. We will continue to monitor and sample the outfall on at least a monthly basis until we achieve 3 consecutive samples within
specifications.
4'" Quarter 2014 - No qualifying discharges during the quarter
1S` Quarter 2015 - No aualifvina discharges during the quarter
2°t Quarter 2015 - No qualifying discharge durina the guarter
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 awareth t there are significa penalties for submitting false information, including the possibility of fines and imprisonment for knowing
violations." -.A— i .
re of Permittee)
Permit Date: 7/1/2010-06/30/2016
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Kate) ate)
Last Revised 07/13/11
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