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Home My WebLink AboutNCG030613_DMR_20221122 Semi-annual Stormwater Discharge Monitoring Report for North Carolina Division of Water Quality General Permit No. NCG030000 Date submitted 11.22.22 CERTIFICATE OF COVERAGE NO. NCG030613 SAMPLE COLLECTION YEAR_2022_ FACILITY NAME _Matcor Metal Fabrication SAMPLE PERIOD ❑Jan-June ®July-Dec COUNTY Davidson or ❑Monthly' (month) PERSON COLLECTING SAMPLES T.Haynes DISCHARGING TO CLASS ®ORW ❑HQW [—]Trout ❑PNA LABORATORY Pace_Lab Cert.#_37706_ Comments on sarpp1�r+C IVEp ❑Zero-flow ❑Water Supply ❑SA collection or analysis:_None �'( V G ❑Other DEC o 7 7072 PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4 GgSTRAL FILES Part A:Stormwater Benchmarks and Monitoring Results DWR SECTION ❑ No discharge this period?2 Date Sample 24-hour rainfall PH, Non-Polar O&G/ Total Toxic Outfall No. Collected' amount, Total Suspended Solids Standard units Copper Lead Zinc Total Petroleum Organicss (mo/dd/yr) inchess Hydrocarbons Benchmarks=__> - - 100 mg/L or 50 mg/L" 6.0—9.0 0.007 mg/L 0.03 mg/L 0.067 mg/L 15 mg/L 1 mg/L 001 11/11/22 0.14 21.9 7.1 ND ND 0.385 mg/L NA NA 'Monthly sampling(instead of semi-annual)must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall. z For sampling periods with no discharge at any single outfall,you must still submit this discharge monitoring report with a checkmark here. 'The 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. 4 See General Permit,Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies. s Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors,manufacture electronic crystals,or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA Effluent Guidelines for the facility subject to the requirement to sample(for metal finishing use the definition as found in 40 CFR 433.11; for semiconductor manufacture use the definition as found in 40 CFR 469.12;for electronic crystal manufacture use the definition as found in 40 CFR 469.22;and for cathode ray tube manufacture use the definition found in 40 CFR 469.31). Permit Date:11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012 Page 1 of 3 Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General Permit. For those facilities electing to employ the ITO monitoring waiver, the discharger shall sign the following certification statement: "Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics (TTO), I certify that to the best of my knowledge and belief,no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the all the provisions of the solvent management plan included in the Stormwater Pollution Prevention Plan." Name(Print name) IrT Title(Print title) .j4_. { ' ature) (Date) Note: Results must be reported in numerical format. Do not report Below Detection Limit, BDL,<PQL, Non-detect, ND,or other similar non-numerical format. When results are below the applicable limits, they must be reported in the format,"<XX mg/L",where XX is the numerical value of the detection limit, reporting limit, etc. in mg/L. Note: if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text. Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging> 55 gal of new oil per month. ❑No discharge this period?z Outfall No. Date Sample 24-hour rainfall Collected' amount, Non-polar O&G/TPH by (mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH Benchmarks=__> - 15 mg/L 100 mg/L or 50 mg/L* 6.0-9.0 SU Footnotes from Part A also apply to this Part B *See General Permit text,Table 5,identifying the especially sensitive receiving water classifications where the more protective benchmark applies. Permit Date:11/l/2012-10/31/2017 SWU-245, last revised 10/25/2012 Page 2 of 3 Note: if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text. FOR PART AAND PART B MONITORING RESULTS: • A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART 11 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 ❑NO❑ IF YES,HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑NO❑ REGIONAL OFFICE CONTACT NAME: Mail an original and one copy of this OMR 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 Discharge"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." ice - 11-,;Ze -Z--2— (21&lature of Permittee) (Date) Permit Date:11/1/2012-10/31/2017 SWU-245,last revised 10/25/2012 Page 3 of 3 t 0-n-, Stormwater Discharge Outfall (SDO) Qualitative Monitoring Report For guidance on filling out this form,please visit:http://h2o.enr.state.nc.us/su/Forms Documents.htm#miscforms Permit No.: 1 N C G i 0 3 0 0 I 0 ' 0 1 or Certificate of Coverage No.: N 1 C 1 G ' 0 ; 3 10 ; 6 1 1 3 Facility Name: Matcor Metal Fabrication County: Davidson Phone No. 336.731.5742 Inspector: Thomas Haynes Date of Inspection: 11.11.22 Time of Inspection: 11:45 AM Total Event Precipitation(inches): 0.14 Was this a Representative Storm Event?(See information below) ® Yes ❑ No Please check your permit to verify if Qualitative Monitoring must be performed during a representative storm event (requirements vary). --..._...---......-...._---------_......----------------------------------------I——-----------------------_-._.....------- A"Representative Storm Event"is a storm event that measures greater than 0.1 inches of rainfall and that ' is preceded by at least 72 hours(3 days)in which no storm event measuring greater than 0.1 inches has occurred. A single storm_event may_contain up to 10 consecutive hours of no precipitation_ By this signature, I certify that this report is accurateand complete to the best of my knowledge: (Signature of Permittee or Designee) 1 Outfall Description: Outfall No. 001 Structure(pipe,ditch,etc.) Outfall from Retention Pond Receiving Stream: Unnamed Tributary of Swearing Creek Describe the industrial activities that occur within the outfall drainage area: Metal Fabrication 2 Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint(light,medium,dark)as descriptors: Light brown Page 1 of 2 SWU-242-112608 3 Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak chlorine odor, etc.): No odor noted 4 Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy: 1 2 D 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: lO 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 O 3 4 5 7 Is there any foam in the stormwater discharge? Yes No 8 Is there an oil sheen in the stormwater discharge? Yes No 9 Is there evidence of erosion or deposition at the outfall? Yes No 10 Other Obvious Indicators of Stormwater Pollution: List and describe None 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. Page 2 of 2 S WU-242-112608