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HomeMy WebLinkAboutNCS000057_MONITORING REPORT_20201014 (2)STORMWATER DISCHARGE OUTFALL (SDO) ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM Calendar Year 2020 Individual NPDES Permit No. Certificate of Coverage (COC) No. 0 or RECEIVEDINCDENR/DWR This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPP. WGROS Facility Name: Venator Chemicals LLC. MOORESVILLE REGIONAL OFFICE County: Cabarrus Phone Number: (704 ) 455-4171 Outfall No. 1 Total no. of SDOs monitored 2 Is this outfall currently in Tier 2 (monitored monthly)? Was this outfall ever in Tier 2 (monitored monthly) during the past year? If this outfall was in Tier 2 last year, why was monthly monitoring discontinued? Enough consecutive samples below benchmarks to decrease frequency ❑ Received approval from DEMLR to reduce monitoring frequency ❑ Other ❑ Was this SDO monitored because of vehicle maintenance activities? Yes ❑ s No of 0 d � Yes ❑ ao No j �oz m 0 ` — m 0o O0 S IV o0x N m 0, o n Yes ❑ No Parameter, (units) Total Rainfall, inches Cu Mg/L Zn Mg/L TSS Mg/L COD Mg/L pH STD Benchmark N/A 0.0073 0.067 100 120 6-9 Date Sample Collected, mm/dd/yy 3/25/2020 1.16 0.019 0.103 13.0 27.3 7.29 8/31/2020 0.94 0.0317 0.0607 48.8 31.3 6.72 SWU-264 - Generic Annual DMR Last revised 810612018 Additional Out -fall Attachment Outfall No. 2 Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No L?�- If this outfall was in Tier 2 last year, why was monthly monitoring discontinued? Enough consecutive samples below benchmarks to decrease frequency ❑ Received approval from DEMLR to reduce monitoring frequency ❑ Other ❑ Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No PS, Parameter, (units) Total Rainfall, inches Cu Mg/L Zn Mg/L TSS Mg/L COD Mg/L pH STD Benchmark N/A 0.0073 0.067 100 120 6-9 Date Sample Collected, mm/dd/yy 3/25/2020 1.16 0.234 0.087 3.8 ND 7.59 8/31/2020 0.94 0.0272 0.0763 23.2 ND 7.21 SWU-264 - Generic Annual DMR Last revised 810612018 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." ror questions, contact your local Regional Office: 2090 US Highway 70 Swannanoa, NC 28778 (828) 296-4500 RALEIGH REGIONAL OFFICE 3800 Barrett Drive Raleigh, NC 27609 (919)791-4200 450 Hanes Mill Rd, Suite 300 Winston-Salem, NC 27105 (336) 776-9800 Winston Salem y� t r � i Ashvike. MO fETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE 225 Green Street 610 East Center Avenue/Suite 301 Systel Building Suite 714 Mooresville, NC 28115 Fayetteville, NC 28301-5043 (704) 663-1699 (910) 433-3300 [SRIINGTON REGIONAL OFFICE WILMINGTON REGIONAL OFFICE J 943 Washington Square Mall 127 Cardinal Drive Extension Washington, NC 27889 Wilmington, NC 28405-2845 (252)946-6481 (910)796-7215 CENTRAL OFFICE 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 807-6300 SWU-264 - Generic Annual DMR Last revised 8/0&2018