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Dioxin: A Toxicology Concern The EPA Dioxin Documents Peer Review meeting was held in Cincinnati, Ohio on August 27, 28 and 29th. The three-day meeting lasted over a week in the news reports published in many areas of the country. Although billed as a technical meeting, the news reports gave the topic more of a political than technical flavor. The EPA Dioxin Documents deal with fate, transport and toxicology although most technical focus is on toxicology. Only two reviewers, Louis Thibodeaux and Ralph Nash, out of a panel of 30 scientists are technically qualified to discuss fate and transport. Jhe remaining 28 technologists were there to discuss the toxicology'of the dioxins. This lopsided emphasis is hard to understand since the fate and transport mechanisms must be known to fully characterize human exposure concerns. If in fact the dioxins of concern are destroyed prior to human contact the toxicology concerns are of questionable importance. *` Based on newspaper accounts of the meeting the concentration of concern in water was reduced from 2.1 parts per quintillion (2.1x10"^ ) to 21 parts per hextillion (2.1xl0~^). This is equivalent to 4 molecules per milligram of water to 4 molecules per 0.1 grams of water. Level at which analytical detection is hard to visualize. At this time politics is dictating action on 2, 3, 7, 8 TCDD and other dioxins. When the cost of dealing with these irrational levels are defined, hopefully good science will be used to define control requi rements. C18581 C O N F ID E N T IA L SUBJECT TO PROTECTIVE ORDER. Jerry M. Schroy /jt m o n t h l y STATUS REPORT J. M. SC h p OY APRIL* 1983 SUBMITTED M A Y 6* 1963 C O N F ID E N T IA L SUBJECT TO PROTECTIVE ORDER. 1 . D E V ^ L W P M E N T ^ R Q J E CI LOBK CEa Q686w o r k p l ace. EXPOSURE c o n t r o l AWAITING C O MM E NT S ON TWO G U I D E L I N E S AT T h IS TIME. ACT IVITIES MINIMAL DL'E TO EFFORT FOR ENVIR O - C H E M AND DELAYS IN CHANGES IN THE RESOURCE D I R EC TO R Y DUE TO ADDED PERSONNEL MOVES W I T h IN CED. ADDITIONAL MOVES IN MAY AND/OR JUNE ARE EXPEC T E D FO LLOWING THE LATEST R E O R G A N I Z A T I O N CAUSING FURTHER DELAYS IN THE DIRECTORY REVISION. ________________________________________________________________ CLA.6-Q666_IChNQLafrY ATTENDED The NINTH ANNUAL RESEARCH SYMPOSIUM - LAND DISPOSAL* INCINERATION AND^ TREATMENT OF HAZARDOUS WASTE IN CINCINNATI DURING THE FIRST WEEK OF MAY. THE TECHNICAL MEETING WAS PRESENTED BY THE EPA TO HIGHLIGHT THE RESEA R C H AND DEVELOPMENT WORK CO MP LETED 9Y EPA STAFF AND EPA CONTRACTORS. D I SCUSSION OF THE- TECHNTCAL~RS0URCE DOCUMENTS COMPLETED TO DATE FOR HAZARDOUS WASTE DISPO SAL WAS A HIGHLIGHT _ O F _ THE CONFERENCE. ____ THESE DOCUMENTS WILL BE ORDERED TO ADD TO THE ENVIRONMENTAL ENGINEERING GROUPS DATA BASE FOR A BETTER U N D E R S T A N D I NG OF THE DOCUMENT RESOURCES TO BE USED BY THE PERMIT WRITERS AND FACILITY DESIGN REVIEWERS. THE PROCEEDINGS OF T h E CONFERENCE RELATED TO LAND DISPOSAL ARE TO BE ISSUED IN THE NEXT 90 DAYS. ATTENDED DR. JAMES TIEDJE'S TALK ON THE MECHANISM OF BIODEGREOATION. THE SEMINAR WAS ORGANIZED BY BILL GLEDHILL TO HIGHLIGHT WORK B y DR. TIEDJE AND HIS GR ADUATE STUDENTS AT THE UNIVERSITY OF MICHIGAN. ThE TALK DEALT W I T h THE MECHAN ISMS FOR TREATMENT OF SPECIFIC CHEMICAl S AND HAS POTENTIAL APPLICATION TO ThE EFFORTS ON GLYPHOSATE DESTRUCTION* OR OTHER SPECIFIC CHEMICALS SUCH AS THE PRIORITY POLLUTANTS. CEA_5-ilUE-iEGULAiaax_REEPQblSE CONTINUED EFFORT o n TCDD Q U E S TI ON S FOR EPS IN RESPONSE TO REOUEST RY JIM WILSON. RESULTS OF FIELD TESTS MATCH PREDICTIONS FOR THE LONG TERM FATE OF TCDD BASED ON SAMPLES TAKEN BY EPS FROM A CON TAM INA TED SITE IN TIMES 3 E A C M . AS A RESULT OF THIS EFFORT MONSANTO EPS PERSONNEL VISITED DOw CHEMICAL TO DISCUSS THE AVAILABILITY OF PHYSICAL PROPERTY DATA ON THE DIOXINS. DOW OFFICIALS^ INDICATED THAT THEY HAD NOT DEVELOPED ANY BASIC PHYSICAL PRO P E RTY DATA OR EVALUATED THE QUESTION OF TCDD FATE. T 'iMONSANTO HAS ELECTED TO FOR TCDD TO VERIFY sSTOOm FT~OF HAVE th PHYSICAL VALUES eP RstOiPmEaR tT eY d data measured earlier this YEAR. THIS DATA DEVELOPMENT wlLL BE u s e d i n t h e s u p p o r t d r . ROUSH IN HIS ACTIVITIES O n THE MISSOURI TCDD BLUE RIBBON TECHNICAL COMMITTEE. THE D a t a m a y ALSO BE OF VALUE IN ACTIONS INVOLVING MONSANTO PLANTS WHICH HAVE OR ARE PROCESSING CHLORINATED PHENOLIC COMPOUNDS. ------G4ro82------ VISITED WITH NIOSH CONTROL TECHNOLOGY PERSONNEL TO PASS ON COMMENTS RELATED TO THEIR LATEST PPOPOSAL FOR DEALING WITH ` 4t PAGE 2 EXPOSURE CONTROL PRACTICES IN THE CHEMICAL INDUSTRY, Tm E TALKS WENT VEY WELL AND THl COMMENTS__ WlLJ__BE__ USED_I N _THE a S E N C Y S EFFORTS TO EFFECT TECHNOLOGY TRANSFER OF CONTROL PRACTICES VIA A DOCUMENT EQUIVALENT TO THE CEO WORKPLACE EXPOSURE CONTROL MANUAL. WITH ANY LUCK THE' AGENCY WILL DOCUMENT NEW DATA WHICH CAN 3E USED IN THE ^ R E P A R A T I O N OF ADDITIONAL GJIDELINES FOR THE CED YELLOW BOOK. THE MEETING WITH THE AGENCY PERSONNEL* PLUS A TELEPHONE DISCUSSION HELD EARLIER IN THE M O N T H , ALSO INVOLVED A RE QUEST FOR SUPPORT FOR THE TECHNICAL PROGRAM AND PRACTICAL INPUT TO OFFSET COMMENTS FROM U3PER MANAGEMENT NIOSH OFFICIALS WHICH CALLED FOR MORE INVOLVED FIELD TESTS. COMMENTS WERE GIVEN ON THE SUGGESTIONS BY THE NIOSH MANAGEMENT AND THE INFORMATION WAS PASSED TO TOM EVANS OF EPS. Cm a CONTROL TECHNOLOGY TASK GROUP ACTIVITIES WILL FOCUS ON INVOLVFMENT WITH NIOSH MANAGEMENT TO AVOID MORE COMPLEX TESTING DURING NIOSH PLANT VISITS. ASSISTED LEO PARADIS ON THE PREPARATION OF COMMENTS ON THE PROPOSED CTG FOR EMISSION CONTROLS FOR THE POLYMER* RESINS AND SYNTHETIC FIBER S INDUSTRIES. THE COMMENTS WERE USED FOR INPUT TO THE CMA TESTIMO NY AND WRITTEN INPUT AND IN COMMENTS TO BE SUBMITTED BY LEO FOR MONSANTO. 2. COt^ULIlUfi ________ SUBJECT TO PROTECTIVE ORDER, -DISPOSAL* .MLIECAII^E *.lhLA NO FURTHER ACTION PLANNED UNTIL RECEIVED. THE STATE RESPO N S E IS CLA,3-iill,E N ^IE0=Cdtl^i<ajSU!l.LALSUII*,Sl.LQmS JttQ*_________ 90* OF MY ACTIVITIES IN APRIL CE NTERED ON E N V l R O - C H E M CONSULTING EFFORTS ON THE KEOKUK ARBITRATION CASE. COM PLE TED A REVIEW OF THE DOCUMENTS USED B y Th E CITY OK KEOKUK IN SUPPORT OF THEIR LEGAL ACTION. THE COMMENTS WERE GIVEN TO bo th i n -h o u s e and e x -m o n s a n t o l a w y e r s d u r i n g an all day t r a i n i n g s e s s i o n h e l d AT Th e E X - M O N S A N T O l e g a l s t a f f o f f i c e s i n d e s MOINES. THE TRAINING SESSION INCLUDED A SESSION ON THE TECHNOLOGY OF WASTEWATER TREATMENT TO FAMILIARIZE THE LAWYERS WITH T H E - ONTGUAGE~OF~THE FIELD AND Th E SPECIFICS OF " THE KEOKUK w a s t e w a t e r TREATMENT p l a n t . a m e e t i n g WAS HELD WITH SVFRDRJP a n d p a r c e l p e r s o n n e l to DISCUSS THE "QUALIFICATIONS AND CANDIDATES FOR TECHNICAL CONSULTANTS TO REVIEW THE TREATMENT PLANT DESIGN AND TO DOCUMENT THE RESPONSIBILITIES" FOR T h E PRESENT TREATMENT PLANT DESIGN PROBLEMS. 01858.1 ACTI VITIE S IN MAY WILL CENTEP ON FURTHER D E F INITION OF THE q u e s t i o n s r a i s e d d u r i n g the m e e t i n g w i t h the l a w y e r s in des MOINES. Th e COMPLETI ON OF A REVIEW OF Th E EN Vl R O - C H E M FI LE S FOR APPROPRIATE SUPPORT DOCUMENTS ANn VERIFICATION OF PAST TECHNIC AL ANALYSIS ARE TD BE COMPLETED FOLLOWING A VISIT TO THE KEOKJK "TREATMENT PLANT. NO FIRM SC HEDULE IS SET FOR THE P L A n T VISIT ALTHOUGH THE ARBITRATION CASE IS TO BEGIN SOMETIME NEAR MID-JUNE. e * PAGE 3 C&jZ5l^^ailJ^aQBTG5ll^St_LULttfcLAIEII*tLLE EFFOPTS TO ESTIMATE THE MAXIMUM AND MINIMUM OPERATING TEMPERATURE OF THE LULING WASTEWATER_ TREATMENT BASIN WERE COMPLETED DURING EARLY M A Y THE ' ESTIMATES SHOW THE ACCURACY OF THE ESTIMATING PROCEDURE BASED_ ON.__A_ COMPARISON TO ACTUAL OPERATING CO ND IT IO NS "**"EOR THE MONTH OF APRIL WITH ES TIMATES FOR JULY AND DECEMBER REPRESENTING THE WARMEST AND COLDEST MONTHS THE RESULTS WERE PREPARED AND DOCUMENTED AT MY DIRECTION BY ERIC B R I M E R . _______________ . _ ________ _ _ _ . . __ __ . ____ CEA -5158 IPENTON CONSULTTNG^RESINS* TRENTON* Ml ,, FORWARDED A PROPOSAL FOR RESEARCH ON THE USE OF ANAEROBIC PRETREATMENT TO JEFF WHITING OF THE RESINS OPERATING UNIT. THE $15*000 PROPOSAL WAS PREPARED BY BILL ELWOOD BASED ON SOME WORK 9Y THE FIRM THAT COMPLETED THE FAYETTEVILLE ANAFROBIC TEST WORK. THE PLANT IS V E RY IN TE RE STED IN THIS TE CHNOLOGY AND HAS REQUESTED ADDITIONAL ECONOMIC DATA TO PREPARE A REQUEST FOR RESEARCH EFFORT. THE OPERATING PERSONNEL HAVE APPROVED THE TEST WORK BUT THE TECHNICAL STAFF NEEDS THE ECONOMICS TO SHOW THE POTENTIAL FOR SAVING ON THE PRO JECT IF S U C CESSFUL. BILL ELWOOD IS H AVING THE DATA PREPARED FOR THE PLANT BY THE CONSULTANT." TO COMPLETE AN ENVIRONMENTAL IMPACT ANALYSIS RELATED TO A I POTENTIAL NEW PRODUCT FOR THE TRENTON PLANT IN MAY. - j J CEA 5*9X36._LGK_V0C_E.UGITJ-VE EMISSION CONTROL___________________________ IL LI NOIS HAS CO MP L E T E D ITS E F F O R T S - .ON THE __ FJGITIVE_MIS SI O N__ __ , REGULATIONS AND HAS FORWARDED A COPY OF THE ECONOMICS FOR REVIEW TO THE PLANT. A ME ET ING IS TO BE HELD IN MAY WITH THE PLANT________ , PERSONNEL AND THE EPS STAFF AND LAWYERS TO IDENTIFY THE KEY POINTS TO BE FORWARDED TO THE ILLINOIS EPA PRIOR TO THE JUNE HEARINGS ON THIS REGULATION.' ' T he- EXPERIENCES "OF THE"wGK "STAFF " RE TO BE PRESENTED AT THE' JUNE ENVIRONMENTAL WORKSHOP BY ME. *.LUL.I5*t _L&. NO ACTION ON THIS PROJECT T H I S MONTH.__________________ USJECT TO PROTECTIVE UKbER. 018584 3. MISCtLAUEQUS. ATTENDED A MEETING WITH THE FELLOW SYMPOSIUM PROGRAM COMMITTEE TO GET APPROVAL_ON__THE PROG_RAM_FOR _THE SECTION OF THE PROGRAM WHICH I AM RESPONSIBLE. ' I ALSO MET WITH BOB REASS OF CORPORATE TRAINING__ AND__ BO B__ LAFTON __TO __ Q.ISCU3S .THE DETAILS OF .THEIR PRESENTATION AT THE FELLOW SYMPOSIUM. PROVI DED DATA TO RICK BELL ON THE TOTAL DISSOLVED SOLIDS (TDS) IMPACT ON WASTEWATER TREATMENT PROCESSES FOR INPUT TO ED JAMRO OF THE DELEWAR RIVER" PLANT FOR USE DURING PERMIT NEGOTIATIONS. CONTINUED T0_ PROVIDE DOCUMENTS ""'FOR BRENDA DANILIO OF THE CHOCOLATE B a y o u p l a n t TO USE IN THE NE GO TI A T I O N S OF THE SORB IC AIR EMISSION PERMIT. THE STATE OFFICIALS REVIEWING THE PERMIT CONTINUE TO QUESTION THE INPUT ON F UGITIVE EMISSIONS USED BY THE PLANT IN THE PERMIT APPLICATION. ANSWERED USTTokTBY GARY JOHNSON O F _M F l W FUG iTlV E T I S S I O N S " FOR USE IN THE ESTIM ATE OF LOSSES FOR THE PROP OSED ACY UNIT AT CHOCOLATE BAYOU. PROVIDED INPUT TO RICH BALTZ OF NITRO ON SLUDGE HANDLING TECHNOLOGY FOR EV ALU ATI ON OF ALTERNATE DISPOSAL ROUTES.____________ ARRAN GED CO LL EC TIO N OF SAMPLES FOR DON KUO IN HIS EFFORTS TO ISOLATE A BACTERIA CAPABLE OF TREATING NT A WASTES AND WASTES FROM AN ACRYLONITRILE PLANT. THE CHOCOLATE BAYOU PERSONNEL ARE TO COLLECT THE SAMPLES OF SOLIDS" FROM THE SEWER SYSTEM FOR DR. KUO. COMPLETED MAR CH MONTHLY REPORT THIS"' M O N T H . THIS"'W~ILL~BE'THE LAST REPORT p r e p a r e d FOR GLENN SMITH BASED ON THE CED REORGANIZATION WHICH NOW HAS ME REPORTING TO WALT SCRUGGS. o , s u b j e c t t o p b o -- n; F A L Sftggfr- C18585