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Home My WebLink AboutNCS000571_Rogers Energy Complex (Cliffside) Data Submittal_20140825DUKE ti' ENERGY August 25, 2014 Mr. Bradley Bennett State of North Carolina Department of Environment and Natural Resources Division of Energy, Mineral & Land Resources Stormwater Permitting Program 1612 Mail Service Center Raleigh, NC 27699-1612 Subject: Rogers Energy Complex Stormwater Data Submittal Dear Mr. Bennett: Environmental Services Duke Energy 526 South Church Street Charlotte, NC 28202 Mailing Address: Mail Code EC13K/ P.O. Box 1006 Charlotte, NC 28201-1006 Please find attached a summary of analytical data collected from stormwater outfalls at the Rogers Energy Complex. Numerous stormwater outfalls are located at the Rogers Energy Complex. The accompanying analytical data was obtained from samples collected at eighteen stormwater outfalls during three separate rainfall events on July 19, July 21, and August 1, 2014. Outfall locations are indicated on the site stormwater plan drawing previously submitted. Please contact me at Mark.McGary@duke-energy.com or at 980-373-7898 if you have any questions or need any additional information. Sincerely, Mark McGary, PE Environmental Services Attachment RECEIVED AUG 2 8 2014 DENR-LAND QUALITY STORMWATER PERMITTING Rogers Energy Complex Stormwater Monitoring Summary July -August 2014 Stormwater samples were collected from 18 stormwater outfalls at the Rogers Energy Complex during storm events on July 19, July 21, and August 1, 2014 as follows: Date Outfalls Sampled Rainfall Event Duration Rainfall Amount July 19, 2014 SW004, SW005, SW015 240 minutes 0.46 inches July 21, 2014 SW001, SW002, 360 minutes 1.01 inches Unit 6 Switchyard East Culvert, Unit 6 Switchyard West Culvert, Drainage Area 16 36" CMP, Drainage Area 16 42" CMP, Drainage Area 16 54" CMP, Landfill Drainage Area 21" CMP August 1, 2014 SW009, SWO11, SW012, Approx. 24 hours 2.7 inches Drainage Area 16 30" CMP, Drainage Area 16 24" CMP, Landfill Drainage Area 42" CMP, Landfill Drainage Area 36" CMP Samples were collected directly into properly preserved bottles and shipped on ice to Duke Energy's analytical laboratory in Huntersville, NC. Analyses were conducted by Duke Energy's Huntersville analytical laboratory (NC Wastewater Certification #248) and Pace Analytical Laboratories (NC Wastewater Certification # 12). Analytical parameters for analysis were: TSS, TDS, Oil &Grease, Cl, SO4, F, COD, Al, As, B, Ba, Ca, Cd, Cu, Cr, Fe, Mn, Mo, Mg, Ni, Pb, Sb, Se, Tl, Zn, Hardness and Hg. Laboratory analytical methods used for each parameter are provided in Appendix A. Storage and preservation techniques of the samples after collection, and prior to analyses, were followed according to Appendix B. Analytical results are summarized in Appendix C. Appendix A Laboratory Analytical Methods Parameter Method Reporting Limit Unit s Lab COD HACH 8000 20 mg/L Duke Energy Chloride EPA 300.0 1 mg/L Duke Energy Fluoride EPA 300.0 1 mg/L Duke Energy Sulfate EPA 300.0 1 mg/L Duke Energy Oil and Grease EPA 1664B 5 ug/L Pace Analtyical Mercury (Hg) EPA 245.1 0.05 ug/L Duke Energy Aluminum (Al) EPA 200.7 0.005 mg/L Duke Energy Barium (Ba) EPA 200.7 0.005 mg/L Duke Energy Boron (B) EPA 200.7 0.05 mg/L Duke Energy Calcium (Ca) EPA 200.7 0.01 mg/L Duke Energy Hardness EPA 200.7 0.19 mg/L(CaCO3) Duke Energy Iron (Fe) EPA 200.7 0.01 mg/L Duke Energy Magnesium (Mg) EPA 200.7 0.005 mg/L Duke Energy Manganese (Mn) EPA 200.7 0.005 mg/L Duke Energy Zinc (Zn) EPA 200.7 0.005 mg/L Duke Energy Antimony (Sb) EPA 200.8 1 ug/L Duke Energy Arsenic [As) EPA 200.8 1 ug/L Duke Energy Cadmium (Cd) EPA 200.8 1 ug/L Duke Energy Chromium (Cr) EPA 200.8 1 ug/L Duke Energy Copper (Cu) EPA 200.8 1 mg/L Duke Energy Lead (Pb) EPA 200.8 1 ug/L Duke Energy Molybdenum (Mo) EPA 200.8 1 ug/L Duke Energy Nickel (Ni) EPA 200.8 1 ug/L Duke Energy Selenium (Se) EPA 200.8 1 ug/L Duke Energy Thallium (TI) Low Level EPA 200.8 0.2 ug/L Duke Energy TDS SM2540C 25 mg/L Duke Energy TSS SM2540D 5 mg/L Duke Energy Appendix B Sample Preservation and Hold Times Parameter name Container' Preservations Maximum holding time Table IB—Inorganic Tests: 1. Acidity P, FP, G Cool, 56 °C10 14 days. 2. Alkalinity P, FP, G Cool, s6 °C10 14 days. 4. Ammonia P, FP, G Cool, s6 00, HzSO, to pH <2 28 days. 9. Biochemical oxygen demand P, FP, G Cool, s6 °Ct0 48 hours. 10. Boron P, FP, or Quartz HNO, to pH <2 6 months. 11. Bromide P, FP, G None required 28 days. 14. Biochemical oxygen demand, carbonaceous P, FP G Cool, 56'C" 48 hours. 15. Chemical oxygen demand P, FP, G Cool, s6 °C10, H2SO4 to pH <2 28 days. 16. Chloride P, FP, G None required 28 days. 17. Chlorine, total residual P, G None required Analyze within 15 minutes. 21. Color P, FP, G Cool, 156'C'8 48 hours. 23-24. Cyanide, total or available (or CATC) and free P, FP, G Cool, s6 00, NaOH to pH >105 14 days. ", reducing agent if oxidizer present 25. Fluoride P None required 28 days. 27. Hardness P. FP, G HNO3 or H2SO4 to pH <2 6 months. 28. Hydrogen ion (pH) P, FP, G None required Analyze within 15 minutes. 31, 43. Kjeldahl and organic N P, FP, G Cool, 156 °C'", H2SO4 to pH <2 28 days. Table IB—Metals:' 18. Chromium VI P, FP, G Cool, 56 00, pH = 9.3-9.720 28 days. 35. Mercury (CVAA) P, FP, G HNO3 to pH <2 28 days. 35. Mercury (CVAFS) FP, G; and FP- 5 mUL 12N HCI or 5 mUL BrCll' 90 days." lined cap" 3, 5-8, 12, 13, 19, 20, 22, 26, 29, 30, 32-34, 36, 37, 45, P, FP, G HNO3 to pH <2, or at least 24 6 months. 47, 51, 52, 58-60, 62, 63, 70-72, 74, 75. Metals, except hours prior to analysis'" boron, chromium VI, and mercury 38. Nitrate P, FP, G Cool, 56 °C10 48 hours. 39. Nitrate -nitrite P, FP, G Cool, 56 °C10, H2SO4 to pH <2 28 days. 40. Nitrite P, FP, G Cool, s6 °C10 48 hours. 41. Oil and grease G Cool to s6 °C'", HCl or H2SO4 to 28 days. pH <2 42. Organic Carbon P, FP, G Cool to 56 °C10, HCl, H2SO4, or 28 days. H,PO4 to pH <2 44. Orthophosphate P, FP, G Cool, to t56 °C1tl24 Filter within 15 minutes; Analyze within 48 hours. 46. Oxygen, Dissolved Probe G, Botts and top None required Analyze within 15 minutes. 47. Winkler G, Bottle and top Fix on site and store in dark 8 hours. 48. Phenols G Cool, s6 00, H2SO4 to pH <2 28 days. 49. Phosphorous (elemental) G Cool, :56'C" 48 hours. 50. Phosphorous, total P, FP, G Cool, s6 °C10, HISO4 to PH <2 28 days. 53. Residue, total P, FP, G Cool, <_6 00 7 days. 54. Residue, Filterable P, FP, G Cool, s6 °C18 7 days. 55. Residue, Nonfilterable (TSS) P, FP, G Cool, <_6 °C10 7 days. 56. Residue, Settleable P, FP, G Cool, s6 °C10 48 hours. 57. Residue, Volatile P, FP, G Cool, 156 00 7 days. 61. Silica P or Quartz Cool, s6 °CfO 28 days. 64. Specific conductance P, FP, G Cool, s6 °C10 28 days. 65. Sulfate P, FP, G Cool, s6 °CIO 28 days. 66. Sulfide P, FP, G Cool, <6 °C", add zinc acetate 7 days. plus sodium hydroxide to pH >9 67. Sulfite P, FP, G None required Analyze within 15 minutes. 68. Surfactants P, FP, G Cool, 56 °C1O 48 hours. 69. Temperature P, FP, G None required Analyze. 73, Turbidity P, FP, G Cool, 56,C16 1 48 hours. '"P" is for polyethylene; "FP" is fluoropolymer (polytetrafluoroethylene (PTFE); TeflonG), or other fluoropolymer, unless stated otherwise in this Table II; "G' is glass; 'PA" is any plastic that is made of a sterilizable material (polypropylene or other autoclavable plastic); "LDPE" is low density polyethylene. 2Except where noted in this Table II and the method for the parameter, preserve each grab sample within 15 minutes of collection. For a composite sample collected with an automated sample (e.g., using a 24-hour composite sample; see 40 CFR 122.21(g)(7)(i) or 40 CFR Part 403, Appendix E), refrigerate the sample at :56 °C during collection unless specified otherwise in this Table II or in the method(s). For a composite sample to be split into separate aliquots for preservation and/or analysis, maintain the sample at s6 °C, unless specified otherwise in this Table II or in the method(s), until collection, splitting, and preservation is completed. Add the preservative to the sample container prior to sample collection when the preservative will not compromise the integrity of a grab sample, a composite sample, or aliquot split from a composite sample within 15 minutes of collection. If a composite measurement is required but a composite sample would compromise sample integrity, individual grab samples must be collected at prescribed time intervals (e.g., 4 samples over the course of a day, at 6 -hour intervals). Grab samples must be analyzed separately and the concentrations averaged. Alternatively, grab samples may be collected in the field and composited in the laboratory if the compositing procedure produces results equivalent to results produced by arithmetic averaging of results of analysis of individual grab samples. For examples of laboratory compositing procedures, see EPA Method 1664 Rev. A (oil and grease) and the procedures at 40 CFR 141.34(f)(14)(iv) and (v) (volatile organics). 'When any sample is to be shipped by common carrier or sent via the U.S. Postal Service, it must comply with the Department of Transportation Hazardous Materials Regulations (49 CFR part 172). The person offering such material for transportation is responsible for ensuring such compliance. For the preservation requirement of Table 11, the Office of Hazardous Materials, Materials Transportation Bureau, Department of Transportation has determined that the Hazardous Materials Regulations do not apply to the following materials: Hydrochloric acid (HCI) in water solutions at concentrations of 0.04% by weight or less (pH about 1.96 or greater; Nitric acid (HNO3) in water solutions at concentrations of 0.150% by weight or less (pH about 1.62 or greater); Sulfuric acid (H2SO4) in water solutions at concentrations of 0.35% by weight or less (pH about 1.15 or greater); and Sodium hydroxide (NaOH) in water solutions at concentrations of 0.080% by weight or less (pH about 12.30 or less). 'Samples should be analyzed as soon as possible after collection. The times listed are the maximum times that samples may be held before the start of analysis and still be considered valid. Samples may be held for longer periods only if the permittee or monitoring laboratory has data on file to show that, for the specific types of samples under study, the analytes are stable for the longer time, and has received a variance from the Regional Administrator under Sec. 136.3(e). For a grab sample, the holding time begins at the time of collection. For a composite sample collected with an automated sampler (e.g., using a 24-hour composite sampler; see 40 CFR 122.21(g)(7)(i) or 40 CFR part 403, Appendix E), the holding time begins at the time of the end of collection of the composite sample. For a set of grab samples composited in the field or laboratory, the holding time begins at the time of collection of the last grab sample in the set. Some samples may not be stable for the maximum time period given in the table. A permittee or monitoring laboratory is obligated to hold the sample for a shorter time if R knows that a shorter time is necessary to maintain sample stability. See 136.3(e) for details. The date and time of collection of an individual grab sample is the date and time at which the sample is collected. For a set of grab samples to be composited, and that are all collected on the same calendar date, the date of collection is the date on which the samples are collected. For a set of grab samples to be composited, and that are collected across two calendar dates, the date of collection is the dates of the two days; e.g., November 14-15. For a composite sample collected automatically on a given date, the date of collection is the date on which the sample is collected. For a composite sample collected automatically, and that is collected across two calendar dates, the date of collection is the dates of the two days; e.g., November 14- 15. For static -renewal toxicity tests, each grab or composite sample may also be used to prepare test solutions for renewal at 24 h, 48 h, and/or 72 h after first use, if stored at 0-6 °C, with minimum head space. sASTM D7365 -09a specifies treatment options for samples containing oxidants (e.g., chlorine). Also, Section 9060A of Standard Methods for the Examination of Water and Wastewater (20th and 21st editions) addresses dechlorination procedures. `Sampling, preservation and mitigating interferences in water samples for analysis of cyanide are described in ASTM D7365 -09a. There may be interferences that are not mitigated by the analytical test methods or D7365 -09a. Any technique for removal or suppression of interference may be employed, provided the laboratory demonstrates that it more accurately measures cyanide through quality control measures described in the analytical test method. Any removal or suppression technique not described in D7365 -09a or the analytical test method must be documented along with supporting data. 'For dissolved metals, filter grab samples within 15 minutes of collection and before adding preservatives. For a composite sample collected with an automated sampler (e.g., using a 24-hour composite sampler; see 40 CFR 122.21(g)(7)(i) or 40 CFR Part 403, Appendix E), filter the sample within 15 minutes after completion of collection and before adding preservatives. If R is known or suspected that dissolved sample integrity will be compromised during collection of a composite sample collected automatically over time (e.g., by interchange of a metal between dissolved and suspended forms), collect and filter grab samples to be composited (footnote 2) in place of a composite sample collected automatically. "Guidance applies to samples to be analyzed by GC, LC, or GC/MS for specific compounds. 31f the sample is not adjusted to pH 2, then the sample must be analyzed within seven days of sampling. t'The pH adjustment is not required if acrolein will not be measured. Samples for acrolein receiving no pH adjustment must be analyzed within 3 days of sampling. "When the extractable analytes of concern fall within a single chemical category, the specified preservative and maximum holding times should be observed for optimum safeguard of sample integrity (i.e., use all necessary preservatives and hold for the shortest time listed). When the analytes of concern fall within two or more chemical categories, the sample may be preserved by cooling to s6 °C, reducing residual chlorine with 0.008% sodium thiosulfate, storing in the dark, and adjusting the pH to 6-9; samples preserved in this manner may be held for seven days before extraction and for forty days after extraction. Exceptions to this optional preservation and holding time procedure are noted in footnote 5 (regarding the requirement for thiosulfate reduction), and footnotes 12, 13 (regarding the analysis of benzidine). 121f 1,2-diphenylhydrazine is likely to be present, adjust the pH of the sample to 4.0 x02 to prevent rearrangement to benzidine. 13Extracts may be stored up to 30 days at <0 'C. 14 For the analysis of diphenylnitrosamine, add 0.008% Na2S2O3 and adjust pH to 7-10 with NaOH within 24 hours of sampling. "The pH adjustment may be performed upon receipt at the laboratory and may be omitted if the samples are extracted within 72 hours of collection. For the analysis of aldrin, add 0.008% Na2S2O3 "Place sufficient ice with the samples in the shipping container to ensure that ice is still present when the samples arrive at the laboratory. However, even if ice is present when the samples arrive, immediately measure the temperature of the samples and confirm that the preservation temperature maximum has not been exceeded. In the isolated cases where it can be documented that this holding temperature cannot be met, the permittee can be given the option of on-site testing or can request a variance. The request for a variance should include supportive data which show that the toxicity of the effluent samples is not reduced because of the increased holding temperature. Aqueous samples must not be frozen. Hand -delivered samples used on the day of collection do not need to be cooled to 0 to 6 °C prior to test initiation. ''Samples collected for the determination of trace level mercury (<100 ng/L) using EPA Method 1631 must be collected in tightly - capped fluoropolymer or glass bottles and preserved with BrC1 or HCI solution within 48 hours of sample collection. The time to preservation may be extended to 28 days if a sample is oxidized in the sample bottle. A sample collected for dissolved trace level mercury should be filtered in the laboratory within 24 hours of the time of collection. However, R circumstances preclude overnight shipment, the sample should be filtered in a designated clean area in the field in accordance with procedures given in Method 1669. If sample integrity will not be maintained by shipment to and filtration in the laboratory, the sample must be filtered in a designated clean area in the field within the time period necessary to maintain sample integrity. A sample that has been collected for determination of total or dissolved trace level mercury must be analyzed within 90 days of sample collection. 'aAqueous samples must be preserved at 56 °C, and should not be frozen unless data demonstrating that sample freezing does not adversely impact sample integrity is maintained on file and accepted as valid by the regulatory authority. Also, for purposes of NPDES monitoring, the specification of "s°C" is used in place of the "4 °C" and "c4 °C" sample temperature requirements listed in some methods. It is not necessary to measure the sample temperature to three significant figures (1/100th of 1 degree); rather, three significant figures are specified so that rounding down to 6 °C may not be used to meet the 156 °C requirement. The preservation temperature does not apply to samples that are analyzed immediately (less than 15 minutes). "An aqueous sample may be collected and shipped without acid preservation. However, acid must be added at least 24 hours before analysis to dissolve any metals that adsorb to the container walls. If the sample must be analyzed within 24 hours of collection, add the acid immediately (see footnote 2). Soil and sediment samples do not need to be preserved with acid. The allowances in this footnote supersede the preservation and holding time requirements in the approved metals methods. 20To achieve the 28-day holding time, use the ammonium sulfate buffer solution specified in EPA Method 218.6. The allowance in this footnote supersedes preservation and holding time requirements in the approved hexavalent chromium methods, unless this supersession would compromise the measurement, in which case requirements in the method must be followed. 'Holding time is calculated from time of sample collection to elution for samples shipped to the laboratory in bulk and calculated from the time of sample filtration to elution for samples filtered in the field. 22Sample analysis should begin as soon as possible after receipt; sample incubation must be started no later than 8 hours from time of collection. 23For fecal coliform samples for sewage sludge (biosolids) only, the holding time is extended to 24 hours for the following sample types using either EPA Method 1680 (LTB-EC) or 1681 (A-1): Class A composted, Class B aerobically digested, and Class B anaerobically digested. 24 The immediate filtration requirement in orthophosphate measurement is to assess the dissolved or bio-available form of orthophosphorus (i.e., that which passes through a 0.45-micron filter), hence the requirement to filter the sample immediately upon collection (i.e., within 15 minutes of collection). 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