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HomeMy WebLinkAboutNC0000752_Correspondence_19960729NPDES DOCUMENT SCANNING COVER SLEET NC0000752 Roanoke Rapids Mill WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence' `i, Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Permit History Document Date: July 29, 1996 This document is printed on reuise paper - ignore any content on the reYerse'gide State of North Carolina Depailnient of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director July 29, 1996 Myrl A. Nisely, Sr. Environmental Engineer Champion International Corporation Roanoke Rapids Mill Post Office Box 580 Roanoke Rapids, North Carolina 27870 LEI--INI Subject: Reasonable Potential Analysis Champion International NC0000752 Halifax County Subbasin: 03-02-08 Dear Mr. Nisely: I am writing in response to the June 24, 1996 letter requesting review of the statistical assessment for the metal requirements in your permit. As noted in the letter dated June 3, 1996, this method is outlined in the Technical Support Document for Water Quality -based Toxics Control (EPA/505/2-90-001 PB91-127414). I have attached the pertinent pages from the Division's DRAFT Standard Operating Procedures for toxics along with a copy of our toxics analysis. As outlined in the North Carolina Administrative Code T15A: 02B .0211 (4) Action Levels for Toxics Substances, a monitoring requirement is implemented when the level of the substance exceeds the allowable waste load allocation. As these substances are generally not bioaccumulative and have variable toxicity, they are usually not limited unless it is found that they have a significant causative factor resulting in toxicity of the effluent. If there are any additional questions concerning this matter, please feel free to contact Farrell Keough at (919) 733-5083, extension 510 or me at extension 519. Sincerely, onald S Assistant Water Quality P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Roanoke Rapids Mill R.O. Box 580 Roanoke Rapids. North Carolina 27870 919 537-6011 aChampion Champion International Corporation June 24, 1996 Mr. Donald Safrit Assistant Chief for Technical Support Water Quality Section Div. Environmental Management NC DEHNR P.O. Box 29535 Raleigh, NC 27626-0535 Dear Mr. Safrit: 1 t t.-- bo tfr..kec-kA'`,e1. 4A_ ,e3,.\ - caz-ek.,.)- .,\F1' cf\cv-2.,,,bcci �Ch *'41 4 4 �� IQ- C(\f%.° - Yt‘° •\) ,-, 41-C€V. Q9-4 (77 Ko-r ,4%,--2 et JU 5 '3" Champion accepts the reduction in monitoring for metals addressed in your letter of June 3. Testing for Chromium and Lead will be dropped. We would like to obtain a copy of your statistical assessment to more fully understand the action levels and a potential permit limit on mercury. • Sincerely, C1 Myrl A. Nisely Sr. Environmental Engineer xc: Jim Cooper Chris Puryear Mary Ransmeier Tom Siegrist, Stamford State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director June 3, 1996 Myrl A. Nisely, Sr. Environmental Engineer Champion International Corporation Roanoke Rapids Mill Post Office Box 580 Roanoke Rapids, North Carolina 27870 7754:1A .16,..............4, LDIEI-INJ I Subject: Request for Review of Monitoring Requirements Champion International NC0000752 Halifax County Subbasin: 03-02-08 Dear Mr. Nisely: I am writing in response to the May 3, 1996 letter requesting review of the metals and chloride data submitted. It is part of the Division of Environmental Management's procedure to accept and review monitoring data that has at least eight samples and is representative of the facility's effluent for at least a year. Once these data are submitted, a reasonable potential analysis is performed to determine whether a parameter will receive a limit or monitoring requirement. This analysis has been performed on the data submitted and the following recommendations are offered for modifying your NPDES Permit parameter Monitoring Requirements Aluminum (µg/1): Arsenic (µg/l): Chloride (mg/1): Chromium (µg/1): Copper (µg/1): Lead (µg/1): Mercury (14/1): Quarterly Monitoring Quarterly Monitoring Quarterly Monitoring No Monitoring Requirement Quarterly Monitoring No Monitoring Requirement Quarterly Monitoring P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Champion International NC0000752 Halifax County The need for a limit for each of the parameters was determined by following EPA's reasonable potential analysis as outlined in the Technical Support Document for Water Quality -based Toxics Control (EPA/505/2-90-001 PB91-127414). This analysis indicated that the predicted maximum concentration exceeded the allowable for both mercury and copper. Thus, if this evaluation was being made at permit renewal a limit of 0.4 µg/l would have been recommended for mercury. Since copper is an action level, we typically would not assign a limit for it unless we had evidence that it was causing toxicity. Due to the high predicted values, more frequent monitoring should remain in the permit. The reasonable potential analysis on the other parameters resulted in predicted values less than the allowable. It is DEM's standard operating procedure to require quarterly monitoring for all parameters having predicted values within 1/10 of the allowable concentration. Following this procedure, monitoring requirements for chromium and lead were dropped, and monitoring for each of the other parameters remained as in the current permit. If these changes are acceptable, we will proceed to modify your NPDES permit accordingly. Please try to respond to us regarding the suitability of these changes by July 1, 1996. If there are any additional questions concerning this matter, please feel free to contact Farrell Keough at (919) 733-5083, extension 510 or me at extension 519. incerely, Ek^'° onald Saf Assistant Chie Water Quality Section cc: Dave Goodrich, Permits and Engineering Judy Garrett, Raleigh Regional Office WLA Files Central Files Support WE MANr M- PcirealripL PioAlas �5 Faculty Name = Champion International NPDES # = NC0000752 Qw (MGD) = 28.0 mgd 7Q10s (cf* 1,500 cfs IWC(%)= 2.81 % FINAL RESULTS Arsenic Maximum Value 132 Max. Pred Cw 647 1I4I � �'tONt�QMN Allowable Cw 1,778 Chromium Maximum Value 24 Max. Pred Cw 118 Allowable .Cw 1,778 Copper [Al] Maximum Value 62 Max. Pred Cw 806 Allowable Cw 249 ANAWpl Cno1VttOQJNq f'ON TAO2 t'J Pe LPl Lead Maximum Value 10 Max. Pred Cw 18 ,,NJunl Allowable Cw 889 Mercury Maximum Value 0.3 Max.PredCw 0.8 14mir Allowable Cw 0.4 Aluminum [Al] Maximum Value 1,679 Max. Pred Cw 2,015 Allowable Cw 3,094 Mp Nti' 021N5 Chloride [Al] Maximum Value 200 Max Pred Cw 1,582 Allowable Cw 8,179 �� i� moNrt�N� 5/9/96 Parameter' s AraranlC Standard. 50 149A n BDL•1201. 'U 1/2 DL RESULTS 1 29 4/8/1104 Sid Dov. 43.9 2 92 Jun-94 Mean 47.0 8 5 • G.V. 0.9 4 10 12/14/94 6 71 Mar-95 e 132 Jun-95 WSFacto. 4.9 7 5 • Max. Value 132 pan $ 51 Doc96 Max. Prod Cw 647 paA 9 28 Mar-95 Allowable Cw 1,711 pan to Pwamtr. Aluminum IAIJ Standard 87 poll Eden: continuous criterion n BDL•12DL •11 1/2 DL RESULTS t 1,488 418A4 Sid Dev. 182.4 2 1,315 Jun-04 Moan 1.421 3 1,454 W13A4 C.V. 0.1 4 1.881 12/14/94 6 1,400 Mar-95 e 1,100 Jun416 Mutt Factor • 1.2 7 1,288 9112A6 Max. Value 1,4170 pan • 1,879 Doc-0e Max. Prod Cw 2,015 paA 9 1,448 Mar-96 Allowable Cw 3,094 pan 10 Poam.w. Chromium Standen! . 50 paA ▪ BDL•12DL 11/2 OL RESULTS 1 12 4/8A4 81d OW. 7.3 2 2.5 Moan 8.1 3 2.5 •, C.V. OA. 4 7 12/14A4 5 13 Mar-95 e 2 Jun-06 A4tdt Facto • 4.9 7 7 11612/86 Max. Value 24 paA s 2.5 • Max. Prod Cw 118 pan 9 24 Mar-96 Allowable Cw 1,778 pan to Ptaam.tar. Chlcrido I�IIJ Standard. 230 maA n BDL.12DL 911/2 DL RESULTS t 88.5 4A3A4 81d Ow. 80.7 2 19.0 Jun-94 Mean 45.4 3 18.8 9113/94 C.V. 1.3 4 20.4 12/14/94 a 4A Mar-95 6 34.0 J n-95 AAs/t Factor. 7.9 7 14.9 9/12/96 Max. Value 200 nap6ii. a 2002 Doc-96 Max. Prod Cw 1,582 mpn 9 33.4 Mar-95 Allowable Cw 5,179 mp5 to Parameter. Copper IAIJ Standard. 7 p3A a BDL.I2DL •111/2 DL RESULTS 1 2.5 • SW Dov. 19.5 2 2.5 • Mean 10.4 3 2.5 • C.V. 1.0 4 5 12/14/84 5 8 Nor-95 e 8 Ju .06 Mt1 Factor. 13 7 2.5 • Max. Value 62 pa/1 e 82 Doc-96 Max. Prod Cw 806 pan 9 2.5 • Allowable Cw 249 p to Parantat r. Load Standard. 25 pan n B0L•1/2DL 911/2 DL RESULTS 1 5 • Std Derr. 1.7 2 5 • Moan 5.8 3 5 • C.V. 0.3 4 10 • 5 5 • e 5 Jun-96 M tt Factor. 1.3 7 5 • Max. Value 10 paA a 5 • Max. Prod Cv 19 pan 9 5 • Allowable Cu 889 pan to Parameter. YO Cury Standard. 0.012 pyl n BDL.12DL 112 DL RESULTS 1 0.1 • Sid Dw. 0.1 2 0.1 • Mean 0.1 3 0.1 • C.V. 0.5 4 0.3 12/14/94 5 02 Mar-95 8 0.1 • Mutt Factor • 2.7 7 02 9/12/95 Max. Value 0.30 pyi 6 0.1 • Max. Prod Cv D.S1 RA 9 0.1 • Allowable Cu 0.40 paA 19 a3 Roanoke Rapids Mill P.O. Box 580 Roanoke Rapids, North Carolina 27870 919 537-6011 Champion Champion International Corporation May 3, 1996 A. Preston Howard, Jr., Director Division of Environmental Management NC Department of Environment, Health, and Natural Resources P.O. Box 29535 Raleigh, NC 27626-0535 Dear Mr. Howard: 4. 1 1 MAY 7 1996 INATr. ',._r B Ty Champion's Roanoke Rapids Mill requests a review by DEM Vfefituent test results to see if the level of monitoring for metals and chloride can be reduced. We propose an armual sampling. NPDES Permit #NC0000752 states that after a period of two years of monitoring for metals and chloride, the DEM is willing to review test results to determine if the removal of, or reduction in, monitoring is justified. Monitoring began 4/94 and nine quarterly rounds have been completed, so we respectfully ask for this review. A table of data is attached for your convenience. If you have any questions, please call me at 919-535-6236. Sincerely yours, ,00-) /,4(z4i,c4fair Myrl A. Nisely Sr. Environmental Engineer xc: Jim Cooper Chris Puryear Mary Lee Ransmeier Tom Siegrist .01 Z 3 ti 5 6 1 mg/I Total, mg/I Total, mg/I) Total, mg/I Total, mg/l Total, mg/I Total, mg/I Date Chloride Aluminum ✓Arsenic ,.Chromium Copper /Lead kMercury 4/6/94 66.5 1.466 0.029 0.012 <.005 <.01 <.0002 • • 6/7/94 •19.0 1.315 0.092 <.005 <.005 <.01 <.0002 ' 9/13/94 16.6 1.454 <.01 <.005 . <.005 <.01 • <.Q002 ;12/14/94 20.4 1.661 0.01 0.007 0.005 <.02 • (QQQ03, 3/20/95 4.0 1.400 0.071 . 0.013 . c0.008'' <.01 0.0002 ,' 6/9/95 34.0 . 1.100 0.132 > . 0.002 . 0.006 0.005 <.0002 • 9/12/95 • _ 14.9 1.268 <.01 * 0.007 . <.005 <.01 •. 0.0002 • .12/5/95 '2200.2)) , -,1:679 0.051 <.005 - (0.062 <.01 <.0002 . 3/5/96 . 334 1.448 0.028 • 0.024 . <.005 <.01 <.0002 6 `ttt16 z.3-6. (io(g6 2o.0 61 I.3Z9 0.94o 0.033 '<0.005 , <o. 60 '0,07..1 0•0IZ , 0.005 <0. 01 < o• 000 Z <0,0 i-40•0002 Champion Roanoke Rapids Mill Metals.xls