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HomeMy WebLinkAboutNC0000078_Wasteload Allocation_19910523NPDES DOCYNENT SCANNING COVER SHEET NC0000078 NPDES Permit: Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Report Speculative Limits Instream Assessment (67b) Environmental Assessment (EA) Permit History Document Date: May 23, 1991 This document is printed on reuse paper - ignore any content on the re Terse side Dt(- 0 s -o' RECEIVED MAY 2 8 1991 State of North Carolina Department of Environment, Health, and Naturtll;;RAsarSUPPORT MAN( Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor George T. Everett, Ph. D. William W. Cobey, Jr., Secretary Director May 23, 1991 Mr. R. J. Gussman, Director Environmental Affairs Ecusta, a division of P. H. Glatfelter Co. PO Box 200 Pisgah Forest, NC 28768 Dear Mr. Gussman: Subject: NPDES Permit No. NC0000078 Dioxin Control Plan Ecusta, a div. of P. H. Glatfelter Co. Transylvania County This letter is to acknowledge receipt of the Dioxin Control Plan from Ecusta on May 16, 1991. This plan is submitted in accordance with the requirements of Part V. Condition B. of the NPDES Permit issued on October 10, 1990. The division will review the plan and notify Ecusta of any deficiencies or its approval in the near future. If you have any questions, please contact me at (919) 733-5083. Sincerely, M. Dale Overcash, PE NPDES Permits Supervisor cc: Mr. Roy Davis (with attachments) Mr. Ken Eagleson (with attachments) Mr. Trevor Clements (with attachments) Pollution Prevention Pays P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer ECUSta a division of P. H. GLATFELTER CO. P.O. BOX 200 • PISGAH FOREST. NORTH CAROLINA 28768 • TELEPHONE (704) 877-2211 May 14, 1991 Mr. Steve Tedder, Chief Water Quality Section Division of Environmental Management 512 North Salisbury Street Raleigh, North Carolina 27611 Subject: Dioxin Control Plan NPDES No. NC0000078 Transylvania County Dear Mr. Tedder: r. ae, MAY 16 1991 WATER QUALITY SECTION Attached are two copies of the Dioxin Control Plan for the Pisgah Forest mill of the P. H. Glatfelter Company in Pisgah Forest, North Carolina. The submittal of this plan is in response to Section V of our current NPDES permit. Should you have any questions, please contact me at 704-877-2347, or Dr. C. Neal Carter at 717-225-4711, extension 2499. Sincerely, ECUSTA DIVISION P. HA Glatfelter Company Gussman, Director Environmental Affairs RJG:mh Attachments Copy to C. N. Carter D.. W. Monk R. W. Wand 0(‘ Dioxin Control Plan Prepared for: Division of Environmental Management North Carolina Department of Environment, Health, and Natural Resources Prepared by: Ecusta Division P. H. GLATFELTER COMPANY Pisgah Forest, North Carolina May 1991 CONTENTS 1. Introduction 2. Currently Instituted Dioxin Control Measures 2.1 Dioxin Precursor Minimization Program 2.2 Suspended Solids Minimization Program 2.3 Chlorine Reduction Program 2.4 Purchased Pulp Dioxin Minimization Program 3. Current and Future Dioxin, Chlorine, and Suspended Solids Minimization Studies 4. Implementation Plan and Schedule 1. INTRODUCTION This dioxin control plan describes the investigates that have been and will be undertaken to characterize the sources, if any, and potential control measures to minimize the production, if any, of 2,3,7,8-tetrachlorodibenzo-p-dioxin ("dioxin") at the P. H. Glatfelter Company's Ecusta Mill at Pisgah Forest, North Carolina. This dioxin control plan was developed in compliance with Part V of the NPDES permit recently issued to Glatfelter which in part states: Within 120 days of the effective date of this permit, the permittee shall submit to the DEM a dioxin control plan (DCP). The DCP shall present any proposed process modifications intended to reduce the discharge of dioxins, along with projected implementation schedules and predicted effects. Additionally, the DCP must also present the provisions expected to address suspended solids and chlorine minimization programs. Upon approval by the permitting authority, the DCP implementation schedule shall become an enforceable part of the permit. This dioxin control plan describes 1) the dioxin control measures taken to date by Glatfelter at its Ecusta Mill, 2) the status of ongoing chlorine minimization and dioxin control investigations, and 3) how Glatfelter proposes to evaluate and respond to information generated by its investigations of further dioxin control measures. Glatfelter notes that the Ecusta Mill does not discharge dioxin in detectable concentrations. Indeed, Glatfelter has been unable to detect dioxin in raw waste water from the Ecusta Mill. Accordingly, there is no reason to believe that the Ecusta Mill discharges dioxin in concentrations of concern, nor is there any reason to believe that a dioxin control plan is necessary or appropriate for the Ecusta Mill. Furthermore, the Ecusta Mill is not a typical pulp and paper mill. It is one of only two mills in North America that produces paper products from flax straw. As such, many of the chemical processes used in the production and bleaching of pulp are unique to the Ecusta Mill. Therefore, only a fraction of the knowledge gained at other mills regarding the steps that can be taken to reduce dioxin formation is known to be applicable to the Ecusta Mill. Nevertheless, the Ecusta Mill has and will continue to take reasonable steps to reduce the possibility that dioxin is formed during the pulp and paper making processes. 1 Section 2 of this plan describes the dioxin control measures that have already been instituted at the Ecusta Mill. Current and future dioxin, chlorine, and suspended solids minimization studies are described in Section 3, and the implementaticsn plan and schedule are included in Section 4. 2 2. CURRENTLY INSTITUTED DIOXIN CONTROL MEASURES Glatfelter has already taken several important measures to reduce dioxin precursors, minimize the use of chlorine, and decrease the amount of suspended solids in the effluent. If the mill generated dioxin, these actions would be expected to reduce the amount of dioxin discharged in the mill's effluent. 2.1 DIOXIN PRECURSOR MINIMIZATION PROGRAM Defoamers are used in the pulping and bleaching processes to prevent liquor spills from open washer vats and filtrate tanks and for the proper operation of washing equipment. Oil based brown stock defoamers have been shown to contain relatively high concentrations of dioxin precursors which can be carried over into the bleach plant where the addition of elemental chlorine may result in the formation of dioxin. In order to eliminate this risk, Glatfelter has replaced all oil based defoamers with water based defoamers. One of the chemical and fiber recovery and conservation processes that has been in effect at the pulp mill for several years is a chemical reuse system designed to recycle all liquid and fiber spills from the digester area back to the flax pulping and bleaching operation. In November, 1989 this system was modified to eliminate the potential recycling of oils and greases (potentially containing dioxin precursors) being used in the digester area. 2.2 SUSPENDED SOLIDS MINIMIZATION PROGRAM Dioxin in pulp and paper mill waste waters has been shown to adsorb on suspended solids in the waste water. A negligible fraction of the dioxin will dissolve. Accordingly, a pulp and paper mill can remove dioxin from its effluent by removing suspended solids. Glatfelter's waste water treatment system consists of primary clarification with settleable solids removal, extended aeration in a 275 million gallon aeration basin, and suspended solids settling in a 69 million gallon settling area or quiescent zone. Clarified effluent is discharged to the French Broad River 3 through a cascade aerator. This system provides excellent BOD, COD, and suspended solids removal. There are minimal changes that can be made to the ate water treatment system to decrease the already low levels of suspended solids in the final effluent from the Ecusta Mill. Nevertheless, Glatfelter has taken two important steps to lower the level of suspended solids entering and leaving the primary waste water treatment system. To reduce the fiber loading to the primary waste water treatment system, the fiber recovery systems in the paper mill are being rebuilt to increase their removal and recycling efficiency. These in -plant controls, such as Savealls and Fiber Savers, redirect fibers that would otherwise enter the waste water treatment system back into the paper making process. To reduce the quantity of suspended solids entering the aeration stabilization basin from the primary treatment system, a new polymer addition system has been added to the belt press and centrifuge sludge dewatering system. 2.3 CHLORINE REDUCTION PROGRAM Some researchers believe that reductions in the use of elemental chlorine during pulp bleaching will reduce dioxin formation in a pulp and paper mill. While the Ecusta Mill is not known to discharge dioxin in concentrations of concern, Glatfelter has instituted a chlorine multiple monitoring program. r Several industry studies have suggested that dioxin formation is minimized if the chlorine multiple can be maintained below 0.17. While Glatfelter has substantially reduced the chlorine multiple at the Ecusta mill, Glatfelter is presently uncertain whether it can achieve and maintain a multiple below 0.17. It must also be noted that it has never been demonstrated that such a multiple in a flax mill minimizes dioxin formation or that such a multiple can be achieved,in a flax furnish mill without compromising product quality. 4 2.4 PURCHASED PULP DIOXIN MINIMIZATION PROGRAM The principal source of dioxin at the Ecusta mill a_dioxin in purchased pulp. In this regard the Ecusta Mill resembles the hundreds of purchased pulp mills in the United States more than it resembles the 104 bleached kraft pulp and paper mills that the Environmental Protection Agency has targeted for special scrutiny; the Ecusta Mill is not one of the 104 mills. Glatfelter, as well as many other paper mills, has placed a limit on the concentration of dioxin that may be present in purchased pulp. Glatfelter's current limit on dioxin in purchased pulp is 10 parts per trillion (ppt). Recently, most lots of purchased pulp have dioxin concentrations less than or equal to 2 ppt. Glatfelter notes that fibers from purchased pulp do not escape the paper making process at as high a rate as fibers escape from the pulping process; fibers of a size to escape have already done so at the pulp mill from which Glatfelter purchased the pulp. Accordingly dioxin in purchased pulp does not pose a serious problem. As noted above, notwithstanding the presence of dioxin in purchased pulp, neither the Ecusta Mil's raw waste water nor its effluent contains detectable dioxin. 5 3. CURRENT AND FUTURE DIOXIN, CHLORINE, AND SUSPENDED SOLIDS MINIMIZATION STUDIES The Ecusta Mill currently uses a CEH (elemental Cirturine stage, sodium hydroxide Extraction stage, and a calcium I pochlorite stage) bleaching sequence. After the chlorination stage, sodium hydroxide is added to the pulp without washing. Following the E and H stages the liquid extracted from the pulp is discharged to the sewer. This spent liquid has the potential to contain dioxin. Glatfelter is currently in the process of conducting a series of bench -top experiments to compare our current CEH bleaching sequence to CHH and C/D EH sequences. The C/D stage is a chlorination stage with fifty percent chlorine dioxide substitution. The extractions following the second and third stages, as well as the finished pulp will be analyzed for dioxin. Depending on the results of these studies, additional evaluations will be conducted to determine the benefits of oxygen delignification prior to bleaching and oxygen addition during the extraction stage. • 6 4. IMPLEMENTATION PLAN AND SCHEDULE Reducing the risk that dioxin is formed and subsequently discharged is an iterative, repetitive process of moninting, evaluation, experimentation, trials, evaluation, implementation, and monitoring. The results of any step in the process affect the subsequent steps and the ultimate success of any single dioxin reduction activity, as well as other related or unrelated dioxin reduction activities. While the P. H. Glatfelter Company remains unconvinced that dioxin at the low concentrations found in other paper mill's waste waters represents a significant human health or ecological risk, and while the Ecusta Mill does not discharge dioxin at concentrations of concern, the company is nevertheless committed to reducing dioxin to levels that are as low as practicable. To that end, Glatfelter will continue the efforts outlined in the preceding sections. If Glatfelter identifies further steps that would reduce the risk of dioxin formation and discharge that are practicable and technically feasible without compromising product quality, Glatfelter will implement them as promptly as possible 7 DIVISION OF ENVIRONMENTAL MANAGEMENT January 2, 1991 MEMORANDUM TO: Don Safrit FROM: Ruth Swanek ?C3 SUBJECT: Ecusta Division of P.H. Glatfelter Adjudications NPDES No. NC0000078 Transylvania County Per your recent request, I have reviewed the adjudicatory comments recently submitted by Ecusta for the dioxin limits recently added to its NPDES permit. I have addressed the following dioxin items: 12. The limit assigned in the NPDES permit is below the detection level. For compliance purposes, the facility must use the EPA approved sampling method which has the lowest detection level. 13. There is no evidence that the Ecusta Mill is causing violations of the water quality standard instream. However, the standard is below the analytical detection level, and limits are set using the design flow of the facility. Since the facility operates below design flow, a safety factor is built into the ana- lysis. 14. Ecusta believes that the dioxin standard is not valid. However, Ecusta had its opportunity to comment during the triennial standards review process when the dioxin standard was first pro- posed. The EMC adopted the standard despite objections raised.b.i4 the pulp and4paper industy, and EPA subsequently approved the-ntg standard. Recently, the EMC voted not to change the standard dveati after hearing the industry's new evidence. Since the effluent limits were derived using standard operating procedures, and both the EMC and EPA have upheld the dioxin standard, there appears to be no basis for rescinding the dioxin limit for the subject permit. Please call me if you have any questions. MEMO TO: VO---LCXrt+ U (-7G c 04_ CC(C-Cod— cAcThr- 4-ethvMQakkizA --e-Co-LLD DATE• SUBJECT: giz-6016LO ect+c-t 't•csc,;A 4u2- Vre,(ktic•- Rtir,2A LieSlyc Ea.)8+c, (K) c 00000-7 , v\e,L,L) S VvlPsre-- Cd5gr) 1)(a-4a1a6i- CCACAJAcjef ECk4ac,-1 at c.L\, v-v2AA,6.3 Tct12_ v\t2.(A) 0.000 5-S Y137) -Ao-r-(-1352 —L Iuck/A.C.-t (or 7:,t) ("Adi-J--vvisLAA crc) cot (( vy-lipt-1 North Carolina Carolina Department of Environment, Health, and Natural Resources DIVISION OF ENVIRONMENTAL MANAGEMENT November 14, 1989 M E M O R A N D U M TO: THROUGH: FROM: SUBJECT: Facility Dale Overcash Trevor Thomas Bleach Clements' Stocktonle kraft paper mill dioxin limits Receiving Stream Design Flow (mgd) Alpha Cellulose Weyerhauser - New Bern Weyerhauser - Plymouth Federal Paperboard Ecusta Lumber River Neuse River Roanoke River Cape Fear River French Broad River The Roanoke flow is average sumes no runoff. flow for the period QA (cfs) 1.80 867 37 4300 55 7674 50 4980 27.5 7Ho of record @ Roanoke dioxin limit (ng/1) 0.004373 0.001066 0.001277 0.000915 U , v vv 2-5't Rapids, as- NPDES FACILITY AND PERMIT DATA UPDATE OPTION TRXID 5NU KEY NC0000078 PERSONAL DATA FACILITY APPLYING FOR PERMIT REGION FACILITY NAME> ECUSTA DIV. OF P.H.GLATFELTER COUNTY> TRANSYLVANIA 01 ADDRESS: MAILING (REQUIRED) LOCATION (REQUIRED) STREET: P.O. 200 STREET: ECUSTA PAPER & FILM GROUP CITY: PISGAH FOREST ST NC ZIP 28768 CITY: PISGAH FOREST ST NC ZIP 28768 TELEPHONE 704 877 2211 DATE FEE PAID: 02/29/88 AMOUNT: 150.00 STATE CONTACT> HARRIS PERSON IN CHARGE R. J. GUSSMAN 1=PROP0SED,2=EXIST,3=CLOSED 2 1=MAJ0R,2=MINOR 1 1=MUN,2=NON-MUN 2 LAT: 3515050 LONG: )ATE APP RCVD )ATE STAFF REP REQS )ATE STAFF REP RCVD )ATE TO P NOTICE )ATE OT AG COM REQS )ATE OT AG COM RCVD )ATE TO EPA )ATE FROM EPA 08241320 02/29/88 03/01/88 03/14/88 12/04/89 / / / / 12/05/89 / / EXPIRATION DATE N=NEW,M=MODIFICATION, WASTELOAD REQS WASTELOAD RCVD SCH TO ISSUE DATE DRAFT PREPARED DATE DENIED DATE RETURNED DATE ISSUED R=REISSUE> R 03/01/88 08/05/88 01/18/90 08/10/88 / / / / / / 11/30/93 ASSIGN/CHANGE PERMIT FEE CODE ( 1 ) 1=(>10MGD),2=(>1MGD),3=(>0.1MGD),4=(<0.1MGD),5=SF,6=(GP25,64,79), 7=(GP49,73)8=(GP76)9=(GP13,34,30,52)0=(NOFEE) DIS/C 18 CONBILL ( ) ;OMMENTS: 05 EFFECTIVE 1/1/89 MESSAGE: ADFE191 *** NO MODIFICATIONS MADE TO SCREEN *** ark, :1/ L /24 1/ 6:152,511A.2-._ lews.74,$ ? 61/.914/74i C ZU1,— Cos a 7. 5 6016.0 C i..2 6 cgs 2 c74 0000/i n i C tA) 5 -z eA f 10,6 cts I .0000 / 9Z,6C{ 571.6c6*.0000/9csa, ,odg?.? 12.6 c yz,G Drok,� , 000,9S n 42, # , aooa n a �Z.6c1 * o) SUBJECT: North Carolina Department of Natural Resources &Community Development Ecusta a division of P. i3. GLATFELTER CO. P.O. BOX 800 • PIBOAH FOREST, NORTH CAROLINA 128788 • TELEPHONE (76•) 8 7-H11 COPY TO: EAGLESON CLEMENTS RAMSEY WESTALL VIA Hand Delivery Mr. Steve Tedder, Chief Water Quality Section Division of Environmental Management 512 North'Salisbury Street Raleigh, North Carolina 27611 Dear Mr. Tedder: June 26, 1989 JUN 2'7 1989 WATET 5:. • JTY Re: Comments of the Ecusta Division of the P.H. Glatfelter Company Concerning Proposed Modifications to NPDES Permit No, NC0000078 Regarding Dioxin Monitoring, Dioxin Control, and Dioxin Reopener for the Pisgah Forest Transylvania County Mill We appreciated the opportunity to meet with you on the dioxin issue on Thursday. On April 28, 1989, the Ecusta Division of the P.H. Glatfelter Company ("Ecusta") received the Division of Environmental Management's ("DEM's") letter of April 24th enclosing proposed modifications to Ecusta's NPDES Permit No. NC0000078 dated December 22, 1988, authorizing discharges to the French Broad and Davidson Rivers ("Permit"). Please accept this letter as Ecusta's comments on the proposed modifications to the permit. DEM has proposed three modifications to the permit, although your letter of April 24th refers only to the first. First, DEM proposes to -require frequent monitoring for all isomers of chloro-dibenzo dioxins and chloro-dibenzofurans in (1) influent to Ecusta's wastewater treatment facility; (2) Ecusta's sludge; (3) Ecusta's landfill leachate; (4) Ecusta's effluent; and (5) fish tissue upstream and downstream from Ecusta's discharge. Second, DEM proposes to require Ecusta to develop a dioxin control plan. Third, DEM proposes to include a dioxin reopener in the permit. For the reasons stated below, the proposed modifications to the permit are not presently justified. The April 24th letter recites no "good cause" for this modification within the meaning of Rule .0114 governing modifications of NPDES permits. Moreover, the modifications are premature. Ecusta has voluntarily agreed to retain a consultant to conduct dioxin monitoring in fish tissue in the French Broad River. DEM would act with unreasonable haste to require any modifications to the permit prior to receipt of the results of this fish tissue monitoring. Indeed, DEM would act with unreasonable haste to adopt these modifications without extending the commend period until. 30 days following receipt of the monitoring results to accommodate incorporation of those results into Ecusta's comments. Also, by proposing this modification without regard to the results of the fish monitoring that DEM had earlier requested, DEM tends to discourage voluntary responses to its requests; the fish sampling here evidently was not relevant to DEM's development of the proposed modification. 1 Page 2 a More specifically, the dioxin monitoring proposed by DEM ig overbroad and unauthorized by any facts or the applicable regulations. Development of a dioxin control plan cannot be required until it is known that the Ecusta mill discharges dioxin at all, let alone in concentrations of concern. Finally, the permit presently includes a general reopener that tracks the requirements of Rule .0114; any special reopener for dioxin would represent an unauthorized 4 circumvention of the procedural protections afforded by that regulation. •3 1. No "Good Cause" Exists' to Modify the Permit Under Rule .0114, in order to modify an NPDES permit in' this state, DEM must demonstrate "good cause." Section II.A.4. of the permit tracks this require- ment. The regulation and the permit give four examples of "good cause": a. Violation of any terms or conditions of (the Permit); b. Obtaining (the Permit) by misrepresentation or failure to disclose fully all relevant facts; c. A change in any condition that requires either a temporary or permanent reduction or elimination of the authorized discharge; (and) d, Information newly acquired by (DEM) indicating the discharge poses a threat to human health or welfare. DEM's April 24.th letter recites two facts to justify the proposed modifications. First, the United States Environmental Protection Agency ("EPA") apparently prepared "recent guidance". Second, EPA apparently issued a draft permit for another paper mill. Neither of these facts constitutes "good cause" in the circumetancee. The examples of "good cause" included in the regulations all pertain either to violations of law by the permittee or new facts learned about the discharge. DEM cites only to informal regulatory guidance and preliminary permitting actions taken by EPA with respect to other mills. No action by.EPA represents a new fact regarding Ecusta's compliance with its permit or the characteristics of the discharge. No action by EPA could therefore constitute "good cause". EPA guidance and the precedent of other permitting decisions are to be incor- porated upon reiasuance of the permit; they do not justify modification of the permit during its term. Section II.A.5 of the permit reinforces this conclusion. That section establishes a special exception to the "good cause" requirement for toxic pollutants in the event that EPA takes particular regulatory action. If EPA establishes a toxic effluent standard or prohibition pursuant to Section 307(a) of the Federal Clean Water Act, that standard or prohibition would apply to Ecuata under Section II.A.5 of the permit. However, action by EPA short of establishing such an effluent standard or prohibition does not Buff ice to modify the permit. EPA's actions hare are not rule making under Section 307(a) and they cannot therefore justify modification of the permit during its term. Page 3 • 2, The Proposed Modification Is Premature An recited in DEM'e April 24th letter, Ecusta recently received a demand from DEM that Ecusta. monitor fish tissue for dioxin. By a letter dated March 3, 1989, Ecusta agreed to perform that work at a cost in excess of $35,000. DEM's proposal to modify the permit prior to receipt of the results of that fish monitoring ie, at a minimum, disturbing. As of the titae that DEM demanded that Ecusta monitor fish in the French Broad River, DEM evidently was uncertain whether the river contained dioxin in con- centrations that posed a threat, even when bioaccumulated in fish. Ecusta's fish monitoring was designed to address that issue, Only if that monitoring discovers dioxin at levels of concern in the French Broad River would it be appropriate to attempt to identify the source of that dioxin (of which there may be many) and to develop a control plan for any discovered source. DEM's proposal to modify the permit assumes (i) that the fish monitoring presently underway will find dioxin at levels of concern and (ii) that Ecusta is the principal source of that dioxin. Neither of these assumptions are justified in light of presently available information and DEM's demand for fish monitor- ing. The proposed modifications should be tabled and reconsidered only after all parties have had an opportunity to assimilate the results of the dioxin monitoring already demanded by DEM. 3. The Proposed Dioxin Monitoring Program Is Inappropriate For the_ Ecusta Discharge_ a. Ecusta Is Not a Bleached Kraft Pula Mill The April 24th letter was a form letter sent to all bleached Kraft paper mills and all other paper mills using chlorine for their bleaching process. It is evident, however, that the proposed dioxin monitoring requirements were developed expressly for a bleached Kraft paper mill; they are inappropriate for Ecusta's mill. The Ecusta mill uses flax furnish rather than wood furnish in a modified Kraft pulping operation; that is, the Ecusta mill uses flax and not wood as its principal source of fiber. Flax furnish contains only 65% as much lignin by volume as does wood furnish. Consequently, chlorine used in bleaching,stagee has lees lignin with which it may inadvertently react to form chlorinated hydrocarbons. Accordingly, the rate of production of chlorinated hydrocarbons in a flax furnish mill will be lower per unit of chlorine than in a bleached Kraft mill. If the Ecusta mill generates dioxins among those hydrocarbons, and production of these molecules in the mill is by no means demonstrated, the race of dioxin generation would be lower in Ecusta's flax furnish mill than in a comparable wood furnish mill. Moreover, the Ecusta mill uses an extremely small volume of pulp -- the material that must be bleached -- for the volume of the mill's discharge. The mill presently discharges approximately 25 million gallons of water per day to the French Broad River, but operates at a pulp capacity of lees than 60 tone per day. In light of the relatively small volume of pulp and, therefore, bleach used at this mill, one would not expect the mill to discharge dioxin at the rate some have asserted that bleached Kraft pulp paper mills discharge. Page 4 b. The Proposed Monitoring Frequency Is Too High Ecuata doesnot expect to detect dioxin or furans in its discharge. Moreover, Ecuata'a process does not vary substantially over time; the mill produces the same products.in the same ways at similar rates. Therefore, even if the permit could be properly modified to require monitoring, the monitoring of influent to the wastewater treatment facility, sludge, landfill leachate, and final effluent should not be monthly or quarterly.. That frequency imposes enormous expense to no benefit. Indeed, the proposed modification itself recognizes the extended time necessary to analyze samples for dioxins and furans. There is no purpose to monthly monitoring when the data will be three months old when they are reported. For these reasons,' if DEM could properly modify the permit to require dioxin monitoring, DEM should only require annual monitoring. In the event that the first two rounds of monitoring detect no dioxins or furans in a particular medium, the monitoring requirement for that medium should be dropped. e. DEM Cannot Properly Require Monitoring For Isomers Other Than 2,3,7,8 Tetrachlorodibento-p-dioxin The proposed modification would require Ecusta to analyze -samples for all isomers of dioxin and furan. However, only one isomer, 2,3,7,8 tetrachlorodibenzo«p-dioxin ("2,3,7,8 TCDD"), is a toxic water pollutant listed by EPA in its regulations or as a ''chemical substance requiring special attention" in the North Carolina Regu- lations. Ecusta is aware of no legal authority and DEM cites none for modifying a permit to require monitoring of other isomers of dioxin or furan. 4. The Proposed Dioxin Control Plan Is Unauthorized, Premature, and Inappropriate DEM has proposed to require Ecuata to develop a dioxin control plan within 120 days of the effective date of the permit modification and to include in that plan an implementation schedule, The implementation schedule is to become an enforce- able part of the permit, upon approval. This appears to be a backhanded method of requiring Ecuata to implement the dioxin control plan upon its approval. For the reasons stated above, no "good cause" exists for imposing dioxin control requirements on Ecueta's permitted discharge. EPA has not issued effluent limita- tions guidelines or toxic effluent standards for dioxin. The monitoring demanded by DEM earlier this year has not -been completed, so no one knows that dioxin presents a problem in the receiving stream. Therefore, no authority exists for the proposed dioxin control plan requirement. Further, because EPA has not issued regulations governing dioxin discharges, the proposed requirement of a dioxin control plan would violate the Hardison Amendment, Section 143-215(c) of the General Statutes, by imposing a.limitation on Ecusta's.discharge more stringent than that called for under the Federal Regulations. Moreover, even assuming that the data presently available could justify some action with respect to dioxin, surely the very terms of the proposed modification.suggest that Ecusta should not be required to develop a dioxin control plan within 120 days. The proposed modification calls for dioxin monitoring. Only if that dioxin monitor- ing revealed the presence of dioxin in concentrations of concern in any medium would a control plan be justified and only if one knew where dioxin was presently to be found could one develop a plan to control it. Therefore, the dioxin control plan requirement must be deferred, at a minimum. Page 5 .5. The Dioxiniteopener In Improper Ae mentioned above, the North Carolina regulations govern modifications to NPDES permits in this State. Modifications must be for "good cause". Changes in law or facts which do not rise to the level of "good cause" do not justify modification of a permit during its term; instead, DEM may use them to change the terms of the permit upon its reiosuance after its expiration. DEM proposes to modify the permit now to allow future modifications on grounds different than those established in either the regulations or Sections II.A.4 and .5 of the permit. That sort of modification is not authorized by the regulations or the permit. Any modification must meet the "good cause" standard of the rules. Whether a change in circumstances justifies a modification during the term of a permit can only be determined after the nature of the change in circumstances becomes known. DEM may not circumvent the important procedural protections of the regulations by modifying.the permit to include the dioxin reopener. 6. The Commend Period on the Proposed Modification Should'Se Extended These comments have addressed a number of issues, but Ecusta has been unable to comment on the proposed modification in light of data soon to be available regard- ing.actual dioxin conditions in the French Broad River. As mentioned above, DEM has demanded that Ecusta sample fish in the river for dioxin. Certainly, common sense demands that Ecusta have an opportunity to reflect the implications of the fish monitoring results in supplemental comments on the proposed modification. In order to do so, Ecusta requires an additional 30 days from the time it submits its report on the fish monitoring to comment on the proposed modification. 7. The Intervening Interim Inclusion of Ecusta's Mill On a List of Facilities Pursuant toSection 304(1) of the Clean Water Act is Not Relevant to the Proposed Modification as Drafted _ As the result of notice that Ecusta received from Region IV of the United States Environmental Protection Agency on June 19th, our meeting of June 22nd, and press reports, Ecusta is. of course, aware that EPA partially disapproved the Statere submissions under Section 304(1) of the Clean Water Act. In particular, Ecusta is aware that EPA asserted authority to place the French Broad River below Ecusta's discharge and the Ecusta mill on the pertinent lists. These decisions, we under- stand, are interim; EPA will accept comments until October 4, 1989 on its approvals and disapprovala. Ecusta is advised by its counsel that no legal or factual grounds exist for the inclusion of either the French Broad River or the Ecusta mill on a Section 304(1) list. Ecusta is also informed by its counsel that the procedure used by EPA to coerce inclusion of stream segments below paper mills on the Section 304(1) "short list" is not authorized by either the statute or EPA's own regulations. DEM's acquiescence in EPA's disapproval does not cure the procedural defects. Nevertheleae, the inclusion of the river and the mill on Section 304(1) lista on an interim basis can have no bearing on the proposed modification to the permit that Ecusta received in April. These actions occurred after DEM proposed the modification, and DEM's letter does not advert to them. Because Ecusta ie entitled to sixty days to consider and to comment upon a proposed modification to the permit, grounds not stated in the proposed modification which arise after the modification is proposed cannot justify that modification. • 1 8. Conclusion In order to modify a permit during its term, DEM requires "good cause". No "good cause" exiata to support the proposed modification. DEM has no data suggesting that the French Broad River contains dioxin at any level, let alone concentrations of concern. Even if dioxins were to be discovered in the river, the sources of that dioxin are by no means clear. Unidentified "guidance" issued by EPA and a draft permit developed for a paper mill of a different type do not in logic or in law justify a modification of the permit. Even if DEM were to determine to continue to consider the proposed modification, DEM must extend the comment period to accommodate additional comments based upon the results of the dioxin monitoring in fish that DEM has itself demanded. There- fore, if DEM does not withdraw the proposed modification, as it should, DEM should accept additional comments until 30 days following submission of the fish monitoring results and DEM should not act on the Codification until receipt of those comments. If it would be appropriate and helpful, Ecusta would be more than willing to meet with you regarding the proposed modification. /bh cc: C. N. Carter - Spring Grove D. W. Monk - Pisgah Forest Sincerely, ECUSTA DIVISION P. GLATFELTER COMPANY Guseman, Director Environmental Affairs