7
DU PQNT-NEWPORT ADMINISTRATIVE RECORD FILE INDEX OF DOCUMENTS
I. SITE IDENTIFICATION
1. Letter to Mr. Robert J. Touhey, Delaware Department of Natural Resource d Environmentaan s l Control (DNREC), from Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Response to December 10, 1979 requesradioactivitn ru o t y gamma scan d grossan s beta count monitorinn o s productiod an g n well water, 4/9/80. P. 100001-100002. Sample results fro EPA/DNREn a m C survey conducte n Februari d e attachedar y .
2. Memorandum to Mr. David Langford, U.S. EPA, from Mr. William M. Thomas, Jr., U.S. EPA, re: Newport pigments potential hazardous waste site radiological analytical results, 4/28/80 . 100003-100006P . A lette. r regarding the gross alpha and beta analyses samples and a sample location map are attached.
3. Stat f Delawaro e e Ground Water Withdrawal r Watefo s r Year 1979 for Du Pont-Newport, City of Newport and AWC-Wilmington Airport, 5/28/80 . 100007-100007P . .
4. Letter to Ms. Ruthanne Gordon, U.S. EPA, from Mr. M. Barszcz [sic], E.I u Pon d .e Nemour d t Company& s , Inc., re: Newport former waste disposal operations, 7/22/80. P. 100008-100013 s attachedi A sitp . ema .
5. Report: Evaluation of Existing Conditions at the Newport Plan Nort- t h Disposal Sitr E.I u Ponfo ed , e d t Nemours & Company. Inc., prepared by Woodward-Clyde Consultants, 3/19/87 . 100014-100185P . .
Administrative Record File available 2/16/90, updated 12/31/91, 11/6/92, 11/13/92, 12/17/92, 1/11/93, 8/30/93, 8/21/95, 9/18/97, 3/16/98, 10/9/00 and 5/23/01. Note: Compan r organizationao y l affiliatios i n identifie e indeth xn i donl y whe t appeare i n th n i s file. 6. Letter to Mr. Chris Corbett, U.S. EPA, from Mr. John M. Lynn, E.I. du Pont de Nemours & Company, Inc., re: Transmitta Requesa f o lr Proposa fo ta r fo l Hydrogeological Investigation, 5/12/87 100186. P . - 100210 e RequesTh .r Proposafo t s attachedi l . 7. Abbreviated Table f Constantso s , Tabl : 1 Thoriue m Series, Tabl : Actiniu2 e m Series, Tabl : 3 Uraniue m Series (undated) 100211-100212. P . .
8. Major Water Utility Service Areas Map, (undated). P. 100213-100215. Well-drilling tables for Wilmington Airport, Wilmington Manor Gardens, and Newport are attached.
9. Handwritten notes, re: Samples taken from Newport Water Supply (undated) . 100216-100219P . .
10 Williams. P . LetteMr o ,t r DNREC, froW.J. Mr m . McClure, E.I. du Pont de Nemours Company, Inc., re: Monitoring wells at the site, 2/5/75. P. .100220- 100225. A hand-drawn site map and four water analysis reports are attached.
11. Letter to Mr. P. Williams, DNREC, from Mr. W.J. McClure, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Additional information on bore locations at the site, 2/14/75. P. 100226-100229. A hand-drawn site map and two engineering computation sheet e attachedar s . 12. Letter to Mr. Jerry Schwartz, E.I. du Pont de Nemours & Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Proposed ground water monitoring plan, 6/4/75. P. 100230-100231.
13. Michae. LetteMr o t rApgar. l A , DNREC, from W.J. McClure, E.I. du Pont de Nemours & Company, Inc., re: Submittal of monitoring plan proposal, 6/11/75. P. 100232-100236. A hand-drawn site map is attached.
14. Report e RelatioTh : f Solino d Waste Disposa Wateo t l r Quality w Castl, Ne prepare e eth County b d y Areawide Waste Treatment Management Program, 8/1/75. P. 100237- 100242. 15. Report: Du Pont-Pigments Department, Newport, Delaware, Landfill-Ground Water Investigation, (no author cited), 2/13/76 . 100243-100256P . . . Michae. Lette16 Mr o t rl Apgar, DNREC, fro. R.ZMr m . Fortney, E.I u Pon d .Nemoure d t Company& s , Inc.: re , A ground water conditions report, 2/17/76. P. 100257- 100257.
17. . CharleLetteMr o t . ShermanrR s , E.I u Pon.d e d t Nemours & Company, Inc., from Mr, Michael A. Apgar, DNREC, re: Comments on submitted report concerning ground water condition e siteth ,t a s2/27/76 . P. 100258-100260.
18. Letter to Mr. Michael A. Apgar, DNREC, from R.Z. Fortney, E.I. du Pont de Nemours & Company, Inc., re: Work performed for the monitoring program at the Du Pont-Newport Plant abandoned landfill, 5/26/76. P. 100261-100271 e followinTh . e attachedar g : a) a property map; b) four boring logs; c) a Certificate of Analysis for river samples; d) a table of Newport ground water observation wells; e) two Certificates of Analysis for well samples.
19. Letter to Mr. A.C. Barlow, E.I. du Pont de Nemours & Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Monitoring of ground water levels and quality, 11/29/76 . 100272-100273P . .
20. Memorandum to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Mr. A.C. Barlow, E.I. du Pont de Nemour Company& s , Inc. : Grounre , d water conditions as require statee th y ,db 12/12/77 . 100274-100279P . . A Ground Water Conditions report for the Newport Landfill, a table of ground water elevations as referred to sea levels, and two site maps are attached.
21. Letter to Mr. Ronald N. Stoufer, DNREC, from R.Z. Fortney, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Monitoring well report, 7/17/79 . 100280-100288P . . The following are attached: a) informatio n grouno n d water conditiont a s Newport Landfill; b) three tables of sampling results; c) a table of iron results; d) three site maps. 22. Preliminary Survey of Newport Pigments Plant, prepared . KennetbMr y Weiss. R h , 11/29/79 . 100289-100290P . .
. . PeteLette23 Mr . Kress E ro t r , E.I u Pon.d Nemour e td & s Company, Inc., from Mr, Robert J. Touhey, DNREC, re: Ground water monitoring program requirements, 12/10/79. P. 100291-100296. A memorandum dated November 7, 1979 regardin e grounth g d water monitoringo reportw d an t site maps are attached.
24. Site identification summary, 12/11/79 . 100297P . - 100297.
25. Telephone conversation record of Mr. Tony Bartolomeo and Ms. Ruthanne Gordon, U.S. EPA, with Mr. Carl Everett, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Proposed remedial action, 1980. P. 100298-100298.
. U.S26 A PotentiaEP . l Hazardous Waste Site Identification and Preliminary Assessment, Newport Pigments Plant, 1/30/80. P. 100299-100302.
27. Handwritten notes, re: Newport Pigments Plant sampling results, 2/13/80. P. 100303-100304.
. Handwritte28 n Summar Analyticaf o y l Result Newporf o s t Pigment Samples, 2/24/80. P. 100305-100310.
29. U.S. EPA Analysis Request and Result form for sample numbers C0006 to C0011, 2/27/80. P. 100311-100316.
. U.SOrganic30 A EP . s Traffic Repor r samplfo t e number C0006, 2/27/80 . 100317-100322P . . Three data sheets o qualitantw d y control report e attachedar s .
31. U.S. EPA Organics Traffic Report for sample number C0007, 2/27/80 . 100323-100328P . . Three data sheets and two quality control reports are attached. 32. U.S. EPA Organics Traffic Report for sample number C0008, 2/27/80 . 100329-100334P . . Three data sheets o qualitantw d y control report e attachedar s .
33. U.S. EPA Organics Traffic Report for sample number C0009, 2/27/80 . 100335-100340P . . Three data sheets and two quality control reports are attached.
. U.SOrganic34 A .EP s Traffic Repor r samplfo t e number C0010, 2/27/80 . 100341-100346P . . Three data sheets o qualitantw d y control report e attachedar s . 35. U.S. EPA Organics Traffic Report for sample number C0011, 2/27/80. P. 100347-100352. Three data sheets and two quality control reports are attached.
36. Letter to Mr. Robert J. Touhey, DNREC, from Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Usage of production well WW13 for process and cooling water, 2/29/80. P. 100353-100354.
. Memorandu37 . JeffreMr o t my Mass, U.S. EPA, fro. Mr m William M. Thomas, Jr., U.S. EPA, re: Hazardous waste site inspectio d trian np report, 3/11/80 . 100355P . - 100356.
38. U.SA SitEP .e Inspection Report, Newport Pigments, 3/21/80 . 100357-100367P . LandfilA . l Site Inspection Report (Supplemental Report) is attached.
. Lette39 o U.SA t fror. Davi EP .mMr d Blecha, West Coast Technical Services Inc., re: Reports for sample numbers C000 C0011o 6t , 4/3/80 100368-100368. P . .
40. Memorandu . KennetMr o t Weis. mR h s fro. LisMs . mA a Hamilton, re: Results of analysis of sample from Du Pont-Newport well DM-3, 4/3/80. P. 100369-1003371. Sampling result e attachedar s .
41. Memorandum to P.F. Sosinski, U.S. EPA, from Mr. Daniel K. Donnelly, U.S. EPA, re: Sample results from the energy dispersive X-ray fluorescence analysis of Newport Pigment and Tybout's Corner Landfills, 4/3/80. P. 100372-100385. The following are attached:
a) informatio n Subparo n Maximu- B t m Contaminant Levels; b) analytical results of Test Well Number DM-3;
c) analytical results of Test Well Number DM-5;
d) analytical result f Teso s t Well Number DM-6;
e) analytical results of water from the City of Newport;
f) a site map;
g) analytical resulte Christianth f o s a Rive- r Upstream.
. Memorandu42 . GarJ y. Mr Gardner o t m . RoberMr , . AlienL t , . LeonarMr d Mangiaracina . Jeffre,Mr . Mr Hass. W yd an , Benjami . LacynA , U.S. EPA, fro. JeffermMr y Burke, U.S. EPA: Grounre , d water pollution potential, 4/8/80 . 100386-100387P . .
43. Notice entitled "Region III: Ground Water System of a Coastal Plain Aquife n Delawarei r ; A RequesEP r fo t Determination Regarding Aquifer," Federal Register. 4/21/80 . 100388-100391P . n area/aquifeA . s i p ma r attached.
44. Memorandum to Mr. Daniel K. Donnelly, U.S. EPA, from Mr. P.G. Johnson, U.S. EPA, re: RCRA results for Newport Pigments, 5/2/80 100392-100392. P . .
45. Memorandu Willia. Mr o t m m Thomas, U.S. EPA, fro. mMr William Belanger, U.S. EPA, re: Radiological results for Newport Pigments, 5/5/80. P. 100393-100393.
46. Letter to Mr. Wayne Naylor, U.S. EPA, from Mr. Barszcz, E.I. du Pont de Nemours & Company, Inc., re: Confirmation of on-site inspection and sampling, 5/12/80. P. 100394-100394.
47. Telephone conversation . TonrecorMr y f o dBartolomeo , U.S. EPA, with Mr. Kenneth Weiss, DNREC, re: Status of DNREC actions, 5/16/80 . 100395-100395P . .
48. Memorandum to Ms. Ruthanne Gordon, U.S. EPA, from Mr. Paul Laskow, U.S. EPA, re: Assignment of federal enforcement action, 5/16/80 . 100396-100396P . . 49. Letter to Mr. Anthony S. Bartolomeo, U.S. EPA, from Mr. William L. Osburn, DNREC, re: Public water systems in Delaware, 5/20/80. P. 100397-100397.
50. Handwritten memorandum to Tony from Ruthanne, U.S. EPA, re: Toxicity testing at Newport Pigments, 6/3/80. P. 100398-100400. A routing and transmittal slip is attached.
51. Memorandu . BenjamiMr o t m . LaceynA , U.S. EPA, fro. Mr m Thoma . VoltaggioC s , U.S. EPA: Geologicare , l survey record f publio s d privatan c e drinking water, 6/3/80. P. 100401-100401.
. Millerm Memorandu52 Ji Ton. . Mr ,Mr y o t Bartolomeom d an , Mr. Pat McManus, U.S. EPA, from Ms. Ruthanne Gordon, U.S. EPA, re: Hydrogeological work on and infrared aerial photographs of all three Delaware cases, 6/4/80. P. 100402-100402. 53. Memorandum to Mr. Ron Preston, U.S. EPA, from Mr. Anthony Bartolomeo, U.S. EPA, re: Sampling results froe Christianth m a River, 6/10/80 . 100403-100404P . .
54. Memorandum to Mr. J. Gary Gardner, Mr. Robert L. Alien, Mr. Thomas C. Voltaggio, and Mr. Jeffrey Hass, U.S. EPA, from R.M. Twitchell, U.S. EPA: Coastare , l plain aquifer in Delaware, 6/10/80. P. 100405-100405. 55. Car. LetteMr l o t Everettr , E.I u Pon d .e Nemour d t & s Company, Inc., from Ms. Ruthanne Gordon, U.S. EPA, re: Reques r informatiofo t n substanceo n s disposee th t a d landfill, treatmen f wasto t e prio o disposalt r , construction of the landfill, and length of landfill activity, 6/11/80 100406-100407. P . .
56. Letter to Mr. Thomas Voltaggio, U.S. EPA, from Mr. Kenneth R. Weiss, DNREC, re: Information requested on water sampling at facilities, 6/20/80. P. 100408- 100408.
57. U.SAnalysiA .EP s Reques d Resulan t t forsamplr fo m e number NP-6, 6/26/80 . 100409-100409P . .
. Memorandu58 o filt m e froAnthon. mMr . BartolomeoS y , U.S. EPA, re: Trip report summary, 6/30/80. P. 100410- 100411. A site map is attached. 59. Telephone conversation record of Mr. Tony Bartolomeo, U.S. EPA, wit. JohMr hn Provinski, Artesian Water Co., re: Artesian Water Co. wells located down gradient from the Newport Pigments Landfill, 7/1/80. P. 100412- 100412. . Memorandu60 Benjami. Mr o t m. Stonelake G n , U.S. EPA, from Mr. Paul Laskow, U.S. EPA, re: Re-assignment of the Newport case, 7/8/80. P. 100413-100413.
61. Memorandum to file from Mr. Anthony S. Bartolomeo, U.S. EPA: Meetinre , g wit. BagalorMr h e Lakshman, Artesian Water Company, on August 3, 1980 to discuss the Newport Pigments Landfile s effecty wellth it an n d i sn o an sl vicinity operate Artesiany db , 7/9/80 100414. P . - 100414.
. Memorandu62 Anthon. Mr o . Bartolomeot mS y , U.S. EPA, from Mr. H. Ronald Preston, U.S. EPA, re: Assessment of potential effect n aquatio s c life, 7/9/80 . 100415P . - 100415. 63. Telephone conversation record of Mr. Tony Bartolomeo, U.S. EPA, wit. JohMr hn Provinski, Artesian Water Company : Welre , l production, 8/21/80 . 100416P . - 100416. 64. U.S. EPA Inorganics Analysis Data Sheet for sample numbers MC0092 to MC0099, MC0078, MC0079, MC8045, MC8044, and MC8043, 8/22/80. P. 100417-100431. Two copies of Appendix A: Elements and Parameters to be Identifie Measuredd an d , 12/79 e attachedar , .
65. Memorandum to Mr. Abraham Ferdas, U.S. EPA, from Mr. William M. Thomas, U.S. EPA, re: Trip report for resampling, 8/26/80. P. 100432-100433.
. Memorandu66 Bruc. Mr eo t m Smith, U.S. EPA, fro. mMr Danie . DonnellyK l , U.S. EPA : ,Datre a reports, 9/30/80 . 100434-100435P . memoranduA . m dated Septembe , 19829 r 0 regarding purgeable organics sampling results is attached. . U.S 67 EmergencA EP . d Remediaan y l Response Information System (ERRIS) Data Collection Report #12, 7/30/82. P. 100436-100439. 68. Report: A Preliminary Assessment of Du Pont-Newport Landfill, prepared by DNREC, 3/84. P. 100440-100477. 69. EPA Potential Hazardous Waste Site Inspection Report, Du Pont-Newport Landfill, 1/24/85. P. 100478-100491.
70. Handwritten Proposed Revised Ground Water Monitoring Plan, 6/27/85. P. 100492-100493. A site map is attached. 71. Report: Site Inspection Using Available Information of Du Pont-Newport Landfill, prepare CorporationS NU y db , 10/7/85 . 100494-100730P . . 72. Handwritten notes, re: Metals results, (undated). P. 100731-100732. 73. Waste Composition Report for Newport Pigments Plant, (undated) . 100733-100733P . .
. Handwritte74 n analysi f painto s , (undated) . 100734P . - 100734. 75. Cross Reference Sheet for Newport Pigments, (undated). P. 100735-100735.
76. Handwritten Well Recordu Pont-NewporD r fo s t Pigments, (undated) . 100736-100736P . . 77. Newport Pigments Analytical Results, (undated). P. 100737-100737.
78. Handwritten notes, re: Suggested sampling points for Newport Pigments Plant, (undated) . 100738-100738P . .
. Handwritte79 n lis f contactso t , (undated) . 100739P . - 100740. 80. Handwritten notes to file, re: Columbian aquifer, well boring logs, and Artesian Water Co. wells, (undated). P. 100741-100741. 81. Handwritten list of Newport Pigment tasks, (undated). P. 100742-100742. II. REMEDIAL ENFORCEMENT PLANNING . 1 . LetteJosepMr o . Hardmant J rh , DNREC, fro. Mr m Gerardo R. Amador, U.S. EPA, re: EPA's response to DNREC's request regardin u Pont-NewporD e th g t Consent Order, 3/21/88. P. 200001-200001. 2. Administrative Order by Consent In the Matter Of: Du Pont-Newport Landfill, 8/12/88. P. 200002-200015. 3. Letter to Mr. James T. Wilburn, Delaware Water and Air Resources Commission, from Dr. E.L. Rodowskas, E.I. du Pon e Nemourd t Company& s , Inc. : Submittare , f o l information requested by the Water & Air Resources Commission concernin requese gth t u Ponr madD fo ty e b approva o continut l e operatio a landfill f o n , 4/2/68. P. 200016-200017.
4. Letter to Dr. E.L. Rodowskas, E.I. du Pont de Nemours & Company, Inc., fro. Jame Mr m. Wilburn T s , Delaware Water & Air Resources Commission, re: Regulations governing the control of refuse disposal and salvage operations for landfills, 6/19/68. P. 200018-200024. e guidelineTh approvae th r fo dumpf slo r sanitarso y landfills are attached. 5. Letter to Mr. James T. Wilburn, Delaware Water and Air Resources Commission, froE.L. Dr m . Rodowskas, E.Iu d . Pont de Nemours & Company, Inc., re: Resubmittal of information concernin a requesg o continut e operation olandfilla f , 6/28/68 . 200025-200030P . e RequesTh . t for Continuatio f Landfilo n d Reclamatioan l n Operation is attached. 6. Letter to Dr. E.L. Rodowskas, E.I. du Pont de Nemours & Company, Inc., from Mr. Hugh J. Menghi, Delaware Water r ResourceAi & s Commission : Approvare , u Font'D f o ls reques o continut t e operatio a landfill f o n , 7/22/68. P. 200031-200032. A memorandum regarding a public hearing to be held for applicants for Water & Air Resources Commission Permit s attachedi s .
10 . 7 Hug. Lette Menghi. Mr J h o t r , Delaware Water Ai & r Resources Commission, from Dr. E.L. Rodowskas, E.I. du Pont de Nemours & Company, Inc., re: Information concerning the location of a working fence and the covering of oxidizable materials at the landfill, 7/26/68 . 200033-200036P . o sitTw . e a for mapd man s waiving the right to a public hearing are attached.
8. Letter to Dr. E.L. Rodowskas, E.I. du Pont de Nemours & Company, Inc., fro. Joh m. Mr BrysonC n , Delaware Water r ResourceAi & s Commission : Permissiore , n granteo t d e operatioDuth Pon r a sanitarfo tf o n y landfill, 8/9/68 . 200037-200039P . . Appendi , SupportinA x g Data, is attached.
9. W.B. LetteMr .o t rJennings , E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. P.A. Palmer, E.I. du Pont de Nemours & Company, Inc., re: A summary, conclusions, and recommendations made following a study of the problems associated with the disposal of Crolyn tape, 2/10/70 200040-200079. P . e followinTh . e ar g attached: a) a discussion of the disposal problems of Crolyn tape, prepare . P.AMr .y b dPalmer , dated February 10, 1970;
a lis bf references)o t ; locatioe th f o Tesf no p tma a Boringsc) u D , Pont Plant locate n Newporti d ;
d) two diagrams of boring log cross-sections; e) eight Boring Logs;
a tablf )f sampl o e e result r permeabilitfo s y and natural moisture testing; tabla g )f Unifie o e d Soil Classifications; h) a Coefficient of Permeability Chart;
a tabli )f borin o e g sample result r borinfo s g numbers BD5 and BD6;
i) two tables of Soil Classification Tests;
11 k) handwritten notes regarding C2O2 disposal history; 1) a memorandum regarding the quantities of scrap magnetic tape buried at the Newport Plant Dump, dated Decembe , 196910 r ;
m) a memorandum regarding the probability of the generatio f chromateo n s from scrap Crolyn magnetic tape, dated September 28, 1967;
n) a memorandum regarding problems associated with tape contaminated with dioxide, dated May 31, 1968;
o) a memorandum regarding dumpster volumes, dated May 31, 1968;
p) a letter regarding a recommendation for the developmen f alternativo t e th mean r fo s disposa f dispersion/coateo l r scrap materials, dated Jun, 196811 e ;
q) a memorandum regarding the disposal of scrap magnetic tape, dated Jun, 196828 e ; memorandua r) m regarding proceduree b o t s followe e disposath n i df wast o l e materials and housekeeping standard e metb o ,t s dated Jun, 198813 e ;
o cross-sectiotw s) n diagram g augelo f ro s borings.
10. Letter to Mr. R.J. Lombardo, E.I. du Pont de Nemours & Company, Inc., from Mr. R.M. Haire, E.I. du Pont de Nemour Company& s , Inc. : Resultx re ,soi si lf o sgra b samples analyzed for heavy metals, 9/4/70. P. 200080- 200082. The sampling results are attached.
11. Letter to Mr. R.J. Lombardo, E.I. du Pont de Nemours & Company, Inc., from Mr. R.M. Haire, E.I. du Pont de Nemours & Company, Inc., re: Water and air pollution e siteath t , 11/10/70 . 200083-200085P . .
12 12. . R.MLetteMr o .t r Salemi, E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. E. Hale, E.I. du Pont de Nemours & Company, Inc., re: Summary of analytical sampling activities that show the site is not a contamination source of the Christiana River, 11/10/70. P. 200086-200089. The sampling results are attached.
13. Lette o Delawart r e Departmen f Highwayo t d an s Transportation froC.M. mMr . Thayer, E.I u Pond .e d t Nemour Company& s , Inc. : Permissio,re n grantee th o t d Department of Highways and Transportation to dump unsuitable material e siteth ,t a s 5/17/72 . 200090P . - 200092, A diagram depicting the proposed disposal area is attached.
. E.L. Lette14 Dr .o t r Rodowskas, E.I u Pon d .Nemoure td & s Company, Inc., from Mr. John A. Lucy, Delaware Departmen f Highwayo t d Transportationan s : re , Transmittal of two diagrams of the disposal site areas, 6/15/72. P. 200093-200095. The two diagrams are attached.
. . E.LLette15 Dr o .t r Rodowskas, E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. J.R. Weaver, E.I. du Pont de Nemour Company& s ,n agreemen A Inc. : ,re t betweeu D n Pont and the Delaware Department of Highways and Transportation allowin e stat th go dum t e p materiat a l the Newport Plant property, 6/20/72. P. 200096-200096.
. . LetteJoh16 Mr . Lucey nA o t r , Delaware Departmenf o t Highway d Transportationan s , fro. CarrolMs m . D l Stride, Army Corp f Engineerso s A permi : re t, authorizing the state to dredge and fill areas along Route 141, 9/20/72. P. 200097-200102. A Department of the Army Permidiagraa d an t m showin proposee th g d disposal area attachede sar .
13 17. . E.LLetteDr o .t r Rodowskas, E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. J.R. Weaver, E.I. du Pont de Nemour Company& s , A conditioInc. e : th re , n i n dumping agreement between Du Pont and the Delaware State Highway Department which states Du Pont may not construc y building an te are th a n o whers e materias ha l been disposed, 9/22/72. P. 200103-200113. The followin e attachedar g :
a) a letter regarding authorization for the Delaware State Highway Departmen o dredgt e and fill areas along Route 141, dated Septembe , 197220 r ;
b) a Department of the Army Permit to dredge and fill along Route 141; o diagram tw e e dredgeareab th o t d sf ) o c san d filled along Route 141; d) a letter regarding a notice of a public hearing on the Delaware State Highway Department's proposal to dump material on Du Pont property, dated July 20, 1972;
a Publie) c Notice, dated Jun, 197228 e ;
summara f )Decembea f yo , 19716 r 4 meetino t g discuss the use of a dike and a basin as a wild life preserve.
18. Letter to C.I. Smith, Jr., E.I. du Pont de Nemours & Company, from R.M. Haire, E.I. du Pont de Nemours, re: Questions relating to the solids disposal area south of Christiana River, 1/10/73. P. 200114-200116.
. . PauLette19 Mr l o t Williamsr , DNREC, fro. JamemMr . A s Hall, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Applicatio r permitfo n r soifo sl borings, 9/13/74. P. 200117-200117.
20. Letter to Dr. E.L. Rodowskas, E.I. du Pont de Nemours & Company, Inc., fro. PasqualmMr . CanzanoS e , DNREC: re , Regulations that apply to the Du Pont landfill operation, 10/7/74 . 200118-200144P . e DelawarTh . e Solid Waste Disposal Regulation e attachedar s .
14 21. Summary of a December 16, 1974 meeting, re: The use of a dike and a basin at the site as a wildlife preserve, 12/16/74. P. 200145-200145.
22. . PasqualLetteMr o t r. Canzano S e , DNREC, fro, Mr m Jerry Schwartz, E.I. du Pont de Nemours & Company, Inc. : Abandonmenre , Newpore th f o tt Plant landfill, 12/27/74 . 200146-200146P . .
. Williams P . . Lette23 Mr o t r, DNREC ,. Schwartz J fro. Mr m , E.I u Pon d .Nemoure d t Company& s , Inc.: ,re Monitoring wells at the site, 2/5/75. P. 200147- 200153. Two site maps and four water analysis reports are attached.
24. Letter to Mr. P. Williams, DNREC, from Mr. J. Schwartz, E.I. du Pont de Nemours & Company, Inc., re: Data from eight bore locations, 2/14/75. P. 200154-200161. The following are attached: a tesa)t borings location map;
b) a monitoring well and test borings location map;
c) a table of Soil Classification Tests;
d) a table of Unified Soil Classifications;
e) a Coefficient of Permeability Chart;
a tablf )f borin o e g sample results;
g) a cross-section diagram of boring logs.
. . JerrLette25 Mr yo t r Schwartz, E.I u Pon d .e Nemour d t & s Company n ,A , DNREC Inc.Go : e re ,Le ,. T fro. mMr inspection of the landfill, 4/1/75. P. 200162-200163. A monitoring well and test borings location map is attached.
. Schwartz J . . Lette26 Mr o ,t r E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. A.C. Barlow, E.I. du Pont de Nemours & Company, Inc., re: An investigative program e tsubmitteb o e stat th o fulfilt eo t d a requesl r fo t data, 6/2/75. P. 200164-200165.
15 27. Letter to Mr. Jerry Schwartz, E.I. du Pont de Nemours & Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Summar meetina f o y g concernin monitorine th g g plat a n the landfill, 6/4/75 200166-200167. P . .
28. Letter to Mr. Michael A. Apgar, DNREC, from Mr. J. Schwartz, E.I. du Pont de Nemours & Company, Inc., re: Submittal of a monitoring plan proposal, 6/11/75. P. 200168-200172 monitorinA . g plan proposal outline is attached.
. . MichaeLette29 Mr o t . rApgarA l , DNREC, fro. JerrMr m y Schwartz, E.I u Pon. d Nemoure d t Company& s , Inc.: ,re Installation of four monitoring wells, 9/9/75. P. 200173-200173. m HallJi . ,. Lette 30 Mr E.I o t r.u Pon d e Nemourd t & s Company, Inc., fro. RonalmMr . StouferN d , DNREC: re , DNREC's failur receivo t e hydrogeologia e c flowsystem report, 12/31/75 200174-200174. P . .
. . J.ALette31 Mr .o t r Hall, E.I .u Pon d e Nemourd t & s Company, Inc., froC.R. mMr . Sherman, E.I u .Pond e d t Nemours & Company, Inc., re: The Ground Water Conditions Report for February, 2/13/76. P. 200175- 200192. The following are attached:
a tabl f groun o e) a d water levels; b) the Ground Water Conditions Report, dated February 13, 1976;
c) two Hydrographs of Monitoring Wells;
d) a map of Landfill Monitoring Wells, Ground Water Levels, dated Januar , 197630 y ;
e) a map of Landfill Monitoring Wells, Ground Water Levels, dated Februar , 19762 y ;
f Landfilo p ma a l fMonitorin) g Wells, Ground Water Levels, dated February 4, 1976;
g) a table of Ground Water Levels Corrected to Sea Level; h) five Boring Logs;
16 i) sampling results for well numbers 11 and 13;
j) sampling results for sample log numbers 34x-l to 34x-4.
32. Lette. CharleMr o . t rShermanR s , E.I u Pond .e d t Nemours & Company, Inc., from Mr. Michael A. Apgar, DNREC : Commentre ,e Groun th n do s Water Conditions Report, 2/27/76 200193-200195. P . .
. Lette. J.A33 Mr .o t r Hall, E.I u Pon d .e Nemour d t & s Company, Inc., fro . CharlemMr . ShermanR s , E.Iu d . Pont de Nemours & Company, Inc., re: Information to be use n developini d g additional ground water data, 3/9/76. P. 200196-200197.
34. Michae. LetteMr o t r. Apgar lA , DNREC, fro. JamemMr s . HallA , E.I u Pon d .Nemoure d t Company& s , Inc.: re , monitorinw Proposane a r fo lg program, 3/11/76. P. 200198-200199.
35. Letter to Mr. James A. Hall, E.I. du Pont de Nemours & Company, Inc., from Mr. Michael A, Apgar, DNREC, re: Approval of additions to the monitoring program and a reques witneso t t monitorinw drilline ne th s a f o g g well, 3/12/76. P. 200200-200200.
36. Letter to Mr. Michael A. Apgar, DNREC, from Mr. James A. Hall, E.I. du Pont de Nemours & Company, Inc., re: Work performe monitorine th r fo d g program, 5/26/76. P. 200201-200210. Four Boring Logs and four pages of sampling result e attachedar s .
37. A.CLette. Mr .o t r Barlow, E.I u Pon d .Nemoure d t & s Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Extensio f deadlineo n r reportfo s n grouno s d water flow and water quality conditions, 8/30/76. P. 200211- 200211.
17 38. Letter to Mr. J.A. Hall, E.I. du Pont de Nemours & Company, Inc., froA.C. mMr . Barlow, E.I .u Pond e d t Nemour Company& s , Inc. : Repor,re n grouno t d water conditions and an explanation of high levels of zinc foun n weli d l DM-3, 10/11/76 . 200212-200221P . e Th . following are attached:
e Grounth a)d Water Conditions Report; b) water quality information;
c) a proposed monitoring program summary;
Contourf o p Potomap To ma n a so cd ) Formation; f Grouno p dma a Watee) r Contours, Potomac Formation, dated Augus , 197617 t ;
f) a map of Ground Water Contours, Pleistocene, dated Augus , 197617 t ;
a sampling) g results tabl r SM-1fo e , DM-1- ,SM 2, DM-2, SM-3, DM-3, SM-4, DM-4, WW-11, and WW-13;
o graphtw r hSM-)fo s o SM-31t , DM- o 1DM-4t , WW-11, and WW-13.
39. Letter to Mr. Michael Apgar, DNREC, from Mr. J.A. Hall, E.I. du Pont de Nemours & Company, Inc., re: Request to abando replacd nan e monitoring well DM-4, 10/15/76. P. 200222-200222.
. LetteA.C. 40 Mr o .t r Barlow, E.I u Pon.d e Nemourd t & s Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Agreements stated at a November 18, 1976 meeting concerning monitoring ground water levels and quality, 11/29/76. P. 200223-200224.
41. LetteJame. Mr so rt Hall , E.I Ponu .d Nemoure d t & s Company, Inc., from Mr. Ronald N. Stoufer, DNREC, re: w monitorinne A g e drilleb wel o t ln replacemen i d f o t well DM-4, 3/17/77. P. 200225-200225.
18 42. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Mr. A.C. Barlow, E.I. du Pont de Nemour Company& s Groune , Th Inc. d: Watere , r Conditions Report, screening difference r wellfo s s DM-2 an de hig DM-6th h d levean , f zino l c foun n weli d l DM-3, 12/12/77 . 200226-200230P . e GrounTh . d Water Conditions Report, two sampling graphs, and handwritten notes on wells are attached.
43. Letter to Mr. Pete Kress, E.I. du Pont de Nemours & Company, Inc., from Mr. Ronald N. Stoufer, DNREC, re: Request for reports on monitoring wells constructed in March 197 d watean 7 r qualit d levean y l data, 1/16/78. P. 200231-200231.
44. Letter to Mr. Ronald N. Stoufer, DNREC, from Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Transmitta monitorinf o l g well report d watean s r quality and level data, 4/27/78. P. 200232-200248. e followinTh attachede ar g : a) a letter regarding transmittal of a Ground Water Conditions Report, dated Decembe, 12 r 1977;
b) the Ground Water Conditions Report, dated Decembe , 197712 r ;
c) an elevations and depth table for well numbers SM-1 to SM-3, DM-1 to DM-6, WW-11, and WW-13; e Potomath f o c p Aquiferma a d) , dated August 10, 1977; e Pleistocenth f o p ma ea Aquifere) , dated Augus , 197710 t ;
f) two Boring Logs;
g) sampling results table r SM-fo s 1o SM-3t , DM-1 to DM-6, WW-11, and WW-13.
45. . RonalLetteMr . o StouferN dt r , DNREC, fro. PetemMr r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Two monitoring well reports, 5/5/78. P. 200249-200249.
19 46. Letter to Dr. T. Lee Go, DNREC, from Mr. Peter E. Kress, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Tables of solid and liquid wastes generated by Du Pont, 6/27/78 . 200250-200259P . e followinTh . e ar g attached:
a) Section 1, Discharge to the Christiana River; b) Sectio , Plan2 n t Sewer; c) Section 3, Drying Lagoon; d) Section 4, Abandoned Lagoon; e) Section 5, Schedule I.
47. Letter to Mr. J.D. Lojewski, E.I. du Pont de Nemours & Company, Inc., fro. C.FMr m . Wood, E.I u Pond .e d t Nemour Company& s , Inc. : Minerare , l deposite th t a s sitd samplinan e g results from wells DM-d DM-5an 4 , 8/28/78. P. 200260-200262. A site background information summar s attachedi y .
48. Property Map, Newport Plant, Christiana Hundredw Ne , Castle County, Delaware, Map 3930, Sheet 1 of 2, prepared by Mann-Talley, Inc., 10/26/78. P. 200263- 200264. Properts attachedi 2 p Sheef o Ma y .2 t
49. Memorandu . R.MMr o .t m Salemi, E.I u Pon d .e Nemour d t s & Company, Inc., from Mr. K.D. Dastur, E.I. du Pont de Nemours & Company, Inc., re: Sampling results from four test borings, 12/7/78 . 200265-200266P . .
50. . LettePete Mr . KressE o rt r , E.I u Pond .e Nemour d t & s Company, Inc., froA.C. Mr m . Barlow, E.I u Pond .e d t Nemour Company& s , Inc. : Resultre , f soiso l samples, 1/30/79. P. 200267-200269. Two Laboratory Analysis Report r samplfo s e numbers T54 o T54t e 5attached ar 7 .
51. . W.JLetteMr .o t rMcClure , E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Establishment of a background public water supply quality data progra a requesu Pon D d o t r an m fo t designat a representative o assist e n locatini t g sampling points to be used in the program, 5/18/79. P. 200270-200271. A sampling program schedule is attached.
20 52. Letter to Mr. Peter Krass, E.I. du Pont de Nemours & Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Parameter e analyzeb o t s d durin n inventora g f grouno y d water quality, 6/13/79 . 200272-200275P . . Attachment I: General Water Quality Indicators, Attachmen: II t Synthetic Organic Chemicals d Attachmenan , t III: Chlorinated Pesticides/Organics e attachedar , .
53, . RonalLetteMr . o StouferN t dr , DNREC, fro. PetemMr r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: The Ground Water Conditions Repor r Julyfo t , 7/17/79. P. 200276-200283 e followinTh . e attachedar g :
a) the Ground Water Conditions Report, dated July 20, 1979;
e Potomath f o c p Aquiferma a b) ,, 1 date y Ma d 1979; e Pleistocenth f o p ma ea Aquifer ) c , datey Ma d 1, 1979;
d) three tables of sampling results for wells SM-1, SM-2, and WW-11;
) e result f iroo s n testing.
54. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemours & Company, Inc., re: The Ground Water Conditions Repor r Juld informatiofo tan y n concerning the high concentrations of zinc and cadmium found in well DM-3, 7/20/79. P. 200284-200291. The following are attached:
a) the Ground Water Conditions Report, dated Jul, 197920 y ; e Potomath f o c p Aquiferma a ) ,, b 1 date y Ma d 1979;
c) a map of the Pleistocene Aquifer, dated May 1, 1979;
d) three tables of sampling results for wells SM-1, SM-2, and WW-11;
e) results of iron testing.
21 55. Letter to Mr. Donald J. Doutt, Delaware Division of Highways, fro. J.RMr m . Draper, E.I u .Pond e Nemourtd s & Company, Inc., re: Decision by Du Pont not to sell propert Newportn i y , 7/27/79 . 200292-200298P . e Th . followin e attachedar g :
a) a letter regarding information about land in Newport that the Delaware Division of Highways wants to purchase from Du Pont, dated Jun, 197927 e ;
b) Attachment 1, metals, cyanide, and Total Organic Compounds (TOC) analyses from monitoring wells DM-4 and DM-5;
c) Attachment 2, contaminant concentrations data;
a sitd)e map.
. Notes56 : Lithoponere , , prepare y C.Kb d . Cooper, 8/8/79. P. 200299-200301.
57. . P.ELetteMr .o t rKress , E.I .u Pond e Nemourd t & s Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc.preliminarA : ,re y report on geolog d grounan y d e sitewateth t ,a r 9/13/79. P. 200302-200312 e followinTh . e attachedar g :
a) the Review of Geology and Groundwater, dated Septembe , 197913 r ;
b) Figur , Newpor1 e t Plant Locatiof o n Geohydrologic Cross Section;
c) Figur , Newpor2 e t Plant Geohydrologic Cross Section;
d) Figur , Pleistocen3 e e Aquifer,, 1 date y dMa 1979;
e) Figur , Potoma4 e c Aquifer ,, 1979 1 date y ;Ma d
f) Figure 5, Water Wells in the Newport Area;
g) Tabl Well, 1 e f Moderato s e Capacity Located Within 1-Mile Radius from Newport Plant;
22 h) selected references.
58. Site photographs, 10/2/79 . 200313-200315P . .
59. . J.LLetteMr o .t r Deming, E.I u Pon d .Nemoure d t & s Company, Inc., from Mr. Peter E. Kress, E.I. du Pont de Nemour Company& s , Inc. : Requesre , determino t e th e leachability, degradability, and radioactivity of items include mineran o d l deposit, abandoned landfilld an , drying lagoon lists, 11/6/79. P. 200316-200326. The followin e attachedar g :
a) the abandoned landfill list; b) the mineral deposit list; e dryinth c}g lagoon list; d) a chart of lithopone barium sides; e) a chart of lithopone zinc sides; f) a chart of lithopone; g) note n lithoponeo s . 60, Letter to Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., from Mr. Robert J. Touhey, DNREC, re: Request for Du Pont to continue to monitor the ground water and to implement an investigation of actions necessar o remedt y y ground water contamination problems, 12/10/79 . 200327-200328P . .
61. Letter to Mr. K.D. Dastur, E.I. du Pont de Nemours & Company, Inc., fro. DeboraMs m . DonovanC h , E.Iu d . Pon Nemoure d t Company& s , Inc. : Possiblre , e actions Du Pont should take to determine whether there is migration of chemicals contained in the landfill near water sources, 1/2/80 . 200329-200330P . .
62. Letter to Mr. Christine Trmal, E.I. du Pont de Nemours & Company, Inc., from Mr. Peter E. Kress, E.I. du Pont de Nemour Company& s , Inc. : Requesre , r fo t information concernin mineraa g l deposit, 1/4/80. P. 200331-200331.
63. Letter to Mr. W.J. McClure, E.I. du Pont de Nemours & Company, Inc., froMichae. mMr Apgar. lA , DNREC: re , The need for a rigid sampling schedule to establish background public water supply qualitya datd an a request for Du Pont to designate a representative to assist in locating sampling points, 1/3/80. P. 200332- 200333 A samplin. g schedul s attachedi e .
23 . . PeteLette64 Mr . KressE o rt r , E.I u Pon d .e Nemour d t & s Company, Inc., fro. KennetmMr Weiss. R h , DNREC: re , An inspectio e Newporth f o nt landfill conducteA EP y b d and DNREC to collect ground water samples and to test for cadmium d gamm an d ,bet an aa radioactivity, 2/7/80, P. 200334-200335 A meetin. g attendance sign-in liss i t attached.
65. . RoberLetteMr . Touheyo J t r , DNREC, fro. PeteMr m r E. Kress, E.I u Pon d .Nemoure d t Company& s , Inc.: re , d healtan Usf ho e hazards associated with production well WW13, 2/29/80 . 200336-200337P . .
66. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc. : Drafre , t proposaa r fo l geological study, 3/26/80. P. 200338-200338.
67. Letter to Mr. Robert J. Touhey, DNREC, from Mr. Peter E. Kress, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Radioactivity gamma scans and gross beta counts run on monitoring and production well water, 4/9/80. P. 200339-200340. The sampling results are attached.
68. Letter to Mr. Wayne Naylor, U.S. EPA, from Mr. M. Barszcz, E.I. du Pont de Nemours & Company, Inc., re: A breakdown of wastes at the site, 5/12/80. P. 200341- 200341.
69. Letter to Ms. Christine Trmal, E.I. du Pont de Nemours & Company, Inc., fro. P.EMr m . Kress, E.I u Pond .e d t Nemours & Company, Inc., re: Boring activities completed at the site, 5/19/80. P. 200342-200342.
70 . Barszcz M . LetteMr o ,t r E.I u Pon d .Nemoure d t & s Company, Inc., from Mr. F.B. Bredimus, E.I. du Pont de Nemours & Company, Inc., re: Problems with the conditio d locatioan n f existino n g monitoring welld an s possible installatio w wellsne f o ,n 5/30/80. P. 200343-200343.
24 71. Letter to Mr. Carl Everett, E.I. du Pont de Nemours & Company, Inc., from Ms. Ruthanne Gordon, U.S. EPA, re: Information provided by Du Pont concerning the use of the Newport landfill and a request for further information, 6/11/80. P. 200344-200358. A memorandum dated May 2, 1980 regarding analysis of sample numbers y flam800225-0 b d furnac 6 an e -0 o et 1 atomic absorption and sampling datr samplfo a e identification numbers C0006 to C0010 are attached.
. Lette. Christin72 Ms o t r e Trmal, E.I u Pon d .e Nemour d t s & Company, Inc., fro. Pete Mr m. Kress E r , E.I u Pond . t de Nemours & Company, Inc., re: A request for recommendations concernin e locatioth g f grouno n d water monitoring wells, 6/13/80. P. 200359-200359.
. . P.ELette73 Mr o .t r Kress, E.I u Pon d .e Nemour d t & s Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s ,e preliminar Inc.Th : ,re y geologic assessment of the south bank at the Newport Plant, 6/18/80. P. 200360-200391. The following are attached:
e Preliminarth a) y Geologic Assessmen f Souto t h Bank Property;
b) selected references;
c) f Studo p FiguryMa Area, 1 e ;
d) Figure 2, Geohydrologic Cross-Section A-B;
) e Figur , Geohydrologi3 e c Cross-Section C-D; f) photographs of Shelby Tube samples;
g) a letter regarding soil sample testing results, dated Jun, 198017 e ;
h) Table 1, Summary of Laboratory Test Data;
a grapi }f Attenber o h g Limits Tests;
j) a table of Unified Soil Classification Systems;
k) twelve Boring Logs.
25 74. . RuthannLetteMs o t r e Gordon, U.S. EPA. ,M fro. Mr m Barszcz, E.I. du Pont de Nemours & Company, Inc., re: Samples obtained A sitdurinEP en a gvisi t analyzer fo d metals, radioactivity, and hydrocarbons, 6/23/80. P. 200392-200400 e followinTh . e attachedar g :
a lettea) r regarding water samples analyzey b d emission spectrography for trace elements, dated June 20, 1980;
a tablb )f Wate o e r Sample Data;
c) water sample analysis results for C.R. numbers 2940, 2942, 2943, 2941 d 2939,an ;
memorandua d) m regardin e resultth g f o s sampling for certification number EPA 48222;
e) a report of analysis for Du Pont identification number DM-2, SM-2, WW-13, DM-4, SM-3, DM-1, DM-3, DM-S, DM-6, SM-1, CD, CU, D-3, D-5, and D-6;
f) an analytical report of sampling results for sample numbers 150-030-106 and 151-063-128 to -132.
75. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc. : Recommendation,re e b o t s included in the preliminary geologic assessment, 6/24/80. P. 200401-200401.
. P.E. Lette76 Mr .o t Kressr , E.I Ponu .d Nemoure td & s Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc. : Result,re s from ground water analysis and a recommendation to relocate wells DM-d DM-3an 1 , 7/11/80 . 200402-200402P . .
. . RuthannLette77 Ms o t r e Gordon, U.S. EPA. ,M fro. mMr Barszcz, E.I. du Pont de Nemours & Company, Inc., re: Information requested by EPA concerning former waste disposal operation e Newporth t a st Plant, 7/22/80. P. 200403-200408. A site map is attached.
26 78. Memorandum to file from Mr. C.B. Everett, E.I. du Pont de Nemours & Company, Inc., re: Summary of a meeting with EPA concerning the Newport and Tybout's Corner Landfills, 7/29/80 . 200409-200410P . .
. W.J. Lette79 Mr o .t r McClure, E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. Michael A. Apgar, DNREC, re: Follow-up sampling work to be conducted on August 13, 1980, 8/5/80 . 200411-200411P . .
80. Letter to Mr. F.B. Bredimus, E.I. du Pont de Nemours & Company, Inc., fro. ChristinmMs e Trmal, E.I u Pond . t de Nemour Company& s , Inc. : Re-evaluatiore , e th f o n design of the ground water monitoring program, 8/7/80. P. 200412-200413.
81. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., fro. ChristinmMs e Trmal, E.I u Pond . t de Nemour Company& s ,e Groun Th Inc. : d re Wate, r Conditions Repor Augustr fo t , 8/20/80 . 200414P . - 200421B. The following are attached:
e Grounth a)d Water Conditions Report, dated August 8, 1980;
b) Tabl Newpor, 1 e t Plan Groundwate- t r Measurements (taken Augus , 1980)18 t ;
c) Figure 1, Pleistocene Aquifer, dated August 18, 1980;
d) Figur , Potoma2 e c Aquifer, dated Augus, 18 t 1980;
e) Figure 3, Pleistocene Aquifer concentrations graph;
f) Figur , Potoma4 e c Aquifer concentrations graph.
82. Letter to Mr. Peter Kress, E.I. du Pont de Nemours & Company, Inc., fro. MichaeMr m . ApgarA l , DNREC: re , A report documenting the results of water sampling for synthetic organic chemicals, 9/2/80 200422-20042. P . 2
27 83. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. Peter E. Kress, E.I u Pon d .e Nemour d t Company& s , Inc.: re , The Ground Water Conditions Report for August, 9/2/80. P. 200423-200434 e followinTh . e attachedar g :
e Grounth a}d Water Conditions Report, dated Augus , 198020 t ;
b) Table 1, Newport Plant - Groundwater Measurements (taken Augus , 1980)18 t ;
c) Figure 1, Pleistocene Aquifer, dated August 18, 1980;
d} Figur , Potoma2 e c Aquifer, dated Augus, 18 t 1980;
e) a Pleistocene Aquifer concentration chart;
f) a Potomac Aquifer concentration chart;
g) sampling results for SM-1 to SM-3, DM-1 to DM-6, WW-13 d WW-11an , .
84. . W.JLetteMr o .t r McClure, E.I u Pon d .e Nemour d t & s Company, Inc., froWillia. Mr m . OsburnL m , DNREC: re , Result f repeao s t samplin r chlorinatefo g d pesticides of well DM-3, 10/2/80. P. 200435-200437. A Special Analytical Request form and a sampling results table are attached.
85. Handwritten letter to Mike from Pete, re: The abandonment of old and installation of new monitoring wells, 11/3/80 200438-200441. P . handwritteA . n note dated Novembe , 1983 r 0 regardin e drillinth w g ne f o g wells, and handwritten notes dated October 24, 1980 regarding the sealing of old and installation of new monitoring well e attachedar s .
86. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. P.E. Kress, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Confirmation of a December 3, 1980 meeting and deactivatio f wello n s DM-1, DM-3 d DM-4an , , 11/14/80. P. 200442-200442.
28 87. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc. : Permissiore , n grantey b d DNREC to seal and abandon three monitoring wells, 12/2/80. P. 200443-200443.
88. Letter to Mr. Michael Barzcz [sic], E.I. du Pont de Nemours & Company, Inc., from Mr. John D. Kinneman, U.S. Nuclear Regulatory Commission A telephon : re , e inquiry concerning closeou f areao t e sth user fo d development and manufacture of dispersion modified metals, 1/6/81. P. 200444-200444.
89. . LetteP.EMr .o t rKress , E.I .u Pon d e Nemourd t & s Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemours & Company, Inc., re: An update of activitie e grounth n o ds water monitoring program, 1/27/81. P. 200445-200449. Three Well Abandonment Report e attachedar s .
90. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. P.E. Kress, E.I .u Pon d e Nemourd t Company& s , Inc.: re , A Ground Water Conditions Report, 1/29/81 . 200450P . - 200451. A ground water monitoring sampling results table is attached.
91. . JohLette . Mr KinnemanD no t r , U.S. Nuclear Regulatory Commission ,. Barszcz M fro. Mr m , E.I .u Pond e d t Nemour Company& s , Inc. : Informatiore , n concerning radiological surveys conducted upon closure sitth e f o e and practices use o dispost d f wasto e e materials from the Newport Plant, 3/18/81. P. 200452-200456. Attachmen a lette : 1 tr dated Augus , 1965 t 8 regarding radiation detected in drain gutters and a recommendatio o removt n e radioactivth e e material; Attachment 2: a letter dated August 14, 1968 regarding safe radiation levels indicate e draith t na d gutters; and Attachment 3: solid and liquid waste disposal procedures informatio e attachedar n .
92. . LetteKennetMr o t . WeissrR h , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Concerns wite validitth h f bariuo y m results reported e Januarith n , 19829 y 1 ground water report, 4/2/81. P. 200457-200458. Table 1, Analytical Results for an Investigative Sampling Program at Newport in February 1981, is attached.
29 93. . KennetLetteMr o . Weisst rR h , DNREC,. M fro . mMr Barszcz, E.I. du Pont de Nemours & Company, Inc., re: Proposed additional changee grounth o dt s water monitoring plan, 5/13/81. P. 200459-200462. Maps of the Pleistocene e PotomaAquifeth d can r Aquifee ar r attached.
94. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. Peter E. Kress, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Well Abandonment Report r monitorinfo s g wells DM-1- DM , d DM-4an 3 , 5/20/81 . 200463-200474P . e WelTh .l Abandonment Reports are attached.
95. U.S. EPA Notification of Hazardous Waste Site, E.I. du Pont de Nemours & Company, Inc., Newport Pigments Plant, 6/8/81 . 200475-200516P . e followinTh . e ar g attached:
a lettea) r regardin a descriptiog e itemth f sno Notificatioe oth n f Hazardouo n s Waste Site, dated June 9, 1981;
b) a copy of the U.S. EPA Notification of Hazardous Waste Site;
a lettec) r regardin n updatea g d waste disposal survey, dated October 29, 1980;
d) a table of past land disposal activities;
a table )f curren o e t land disposal activities;
f) a table of current and past solvent recovery activities;
a tablg )f pas o d ecurren an t t drum salvage activities;
a tablh )f pas o e t cleaning cloth recovery activities; a tabli )f curren o e l salvagoi t e activities;
j) information regarding the contents of and activities performe e Newporth t a dt Landfill;
k) a map of the Potomac Aquifer, dated May 1, 1979;
30 1) information regarding the contents of and activities performed at the Krebs Deposit;
m) information regarding the contents of and activities performed at the Drying Lagoon at the Newport Site;
n) information regardin e contentth d g an f o s activities performed at the Koppers Landfill;
o) two summaries of the site activities;
p) a handwritten letter regarding a Freedom of Informatio t (FOIAnAc ) reques o obtait t n EPA's sampling results from a June 24, 1980 sit en explanatio a A visi EP d y an t wh f o n tested a town well, dated June 26, 1980;
q) a letter regarding a summary of EPA's June 24, 1980 site investigation and sampling activities, dated June 25, 1980;
r) handwritten notes regardin a telephong e conversation about landfill operations, dated June 5, 1980;
s) a handwritten table of sampling results from the Newport Landfill, the Krebs Deposit, the Drying Lagoon, and the Koppers Landfill;
t) a letter regarding transmittal of information on buried wastes, dated May 27, 1980;
u) a letter regarding a breakdown of wastes at the site , ,1980 12 date y ;Ma d e content th e a Newporlis vth f )o t n i s t Landfill; e content e th Mineraa lis wth f ) o t n i sl Deposit;
a lis xf content)o t e Dryinth n i gs Lagoon;
y) a letter regarding a summary of a February 21, 1980 EPA site survey, dated February 22, 1980;
31 e Potomath f o c p Aquiferma a z) ,, 1 date y Ma d 1979;
aa) a letter regarding transmittal of a summary of inactive on-plant land disposal sites, dated September 25, 1978;
bb) an Inactive Land Disposal Site Catalog;
cc) information regardin abandonee th g d Newport Landfill; dd) a site map showing landfill and well locations;
ee) a letter regarding chemical wastes disposed of at the site, dated May 8, 1978;
ff) a site history summary, dated September 4, 1975;
gg) a letter regarding abandonment of the Newport Landfill, dated Decembe , 197419 r ;
hh) an excerpt from the State Sanitary Code, Part 38, Solid Waste Disposal.
96. . KennetLetteMr o t . WeissrR h , DNREC, fro. PeteMr m r E. Kress, E.I .u Pon d Nemoure d t Company& s , Inc.: re , The Ground Water Conditions Report, 6/18/81. P. 200517-200518. A ground water monitoring sample tabl s attachedi e .
. . KennetLette97 Mr o . Weisst rR h , DNREC, fro. PetemMr r E. Kress, E.I. du Pont de Nemours & Company, re: Groundwater Report, 6/24/81 . 200519-200520P . . Sampling results are attached.
98. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., fro. ChristinmMs e Trmal, E.I .u Pond t de Nemour Company& s , Inc. : ,Installatiore o tw f no new monitoring wells, 7/8/81. P. 200521-200524. A monitoring well design diagram and a letter regarding changes to the ground water monitoring program, dated February , 1981 25 ,e attached ar , .
32 99. Letter to Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., from Ms. Lisa A. Hamilton, DNREC, re: Comment u Font'D n o ss proposal o changt s e grounth e d water monitoring plan, 7/14/81. P. 200525-200527. A lis f generao t l guideline r constructiofo s f o n monitoring wells is attached.
100. . KennetLetteMr o . Weisst rR h , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Groundwater Monitoring Plan, 7/17/81 . 200528P . - 200529 A hand-draw. n sketc f grouno h d water monitoring well s attachedi s .
101. Letter to Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., fro. ChristinmMs e Trmal, E.I u Pond . t de Nemours & Company, Inc., re: Soil boring logs and a drawing showing the completion of four new monitoring wells, 10/1/81. P. 200530-200536. Four Boring Logs, a ground water monitoring well design diagram, and a ground water monitoring well locatioe attachedar p nma . 102. . P.ELetteMr o .t r Kress, E.I u Pon d .e Nemour d t & s Company, Inc., fro. ChristinMs m e Trmal, E.I u Pond . t de Nemours & Company, Inc., re: The Ground Water Conditions Repor r Octoberfo t , 10/9/81 . 200537P . - 200547. The following are attached:
a) the Ground Water Conditions Report, dated October 9, 1981;
b) a map of the Potomac Aquifer, dated May 20, 1981;
c) a map of the Pleistocene Aquifer, dated May 20, 1981;
d) seven concentratione graphth r fo s Pleistocene and Potomac Aquifers.
103. Letter to Mr. James Joyce, Division of Highways, from Mr. Pete . KressE r , E.I u Pon d .e Nemour d t Company& s , Inc. : Installatiore , a tida f o n l e nortgaugth n ho e abutment, 10/29/81 . 200548-200551P . A diagra. f o m 1 Bridg14 d the Ol evie w fro mWora wesd k an tPermi d an t Independent Contractors' Safety Instructions Newport Plant fore attachedar m .
33 104. . KennetLetteMr o Weiss. t rR h , DNREC, fro. PeteMr m r E. Kress, E.I .u Pon d e Nemourd t Company& s , Inc., Ground Water Report for the third quarter of 1981, 10/29/81 . 200552-200553P . e reporTh .attacheds i t .
105. . P.ELetteMr .o t Kressr , E.I u Pon. d e Nemourd t & s Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , n updateInc.A : ,re d Ground Water Conditions Report, 12/2/81 . 200554-200559P . . e followinTh e attachedar g :
a) the Ground Water Conditions Report, dated Decembe , 19812 r ;
b) a map of the Potomac Aquifer, dated May 20, 1981; e Pleistocenth f o p ma ea Aquiferc) , datey Ma d 20, 1981;
d) a cross-section diagram of monitoring wells.
106. . LisLetteMs ao t rHamilton , DNREC, fro. PeteMr m. E r Kress, E.I u .Pon d e Nemourd t Company& s , Inc.: ,re Information on drilling of pilot boreholes, 12/21/81. P. 200560-200566. Four boring logs, Figure 3, Ground Water Monitoring Wells Installed in September 1981 Newport Plant, and a map of the Newport Plant ground water monitoring program's locatio f fouw o n ne r monitoring well r Septembefo s r 198 e attached1ar .
107. . KennetLetteMr o t . WeissrR h , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Groundwater Report summarizin e thirth g d quartef o r 1980 through the second quarter of 1981, 2/8/82. P. 200567-200570. Figure 1, Newport Plant Groundwater Monitoring Wells, September 1981 d Figur,an , Newpor2 e t Plant Groundwater Monitoring Program, Pleistocene Aquifer , 1981 20 date e attachedy ,ar Ma d .
108. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Groundwate re fourtReporth r hfo t quarte f 1981o r , 2/10/82. P. 200571-200572. The report is attached.
34 109. . KennetLetteMr o Weiss. t rR h , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Groundwater Report, 3/16/82. P. 200573-200574. A table of ground water monitoring sample results is attached.
110. Letter to Mr. Kenneth R. Weiss, DNREC, from Mr. George H. Hull, E.I. du Pont de Nemours & Company, Inc., re: Ground water report for the second quarter of 1982, 9/30/82 200575-200576, P . A tabl. grounf o e d water monitoring sample results is attached.
111. Letter to Mr. G.H. Hull, E.I. du Pont de Nemours & Company, Inc., from Ms. Christine Trmal, E.I. du Pont de Nemour Company& s , Inc. : Evaluatiore , f grouno n d water level data, 11/23/82. P. 200577-200580. A Ground Water Conditions Report, dated November 23, 1982, and maps of the Potomac and Pleistocene Aquifers, dated May 1982, are attached.
112. Letter to Mr. William G. Razor, DNREC, from Mr. George H. Hull, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Ground wate re thir reporth dr fo quartet f 1982o r , 2/17/83 200581-200582. P . A tabl. f grouno e d water monitoring sample results is attached.
113. Letter to Mr. William G. Razor, DNREC, from Mr. George H. Hull, E.I. du Pont de Nemours & Company, Inc., re: Ground wate re fourtreporth r hfo tquarte f 1982o r , 4/11/83 . 200583-200584P . A tabl. f grouno e d water monitoring sample result s attachedi s .
114. . WilliaLetteMr o t . rRazorG m , DNREC, fro. GeorgMr m e H. Hull, E.I .u Pon d e Nemourd t Company& s , Inc.: ,re Ground water quality and hydrological condition, 4/26/83 . 200585-200588P e locatio.th f o f o p n ma A . monitorin e aquiferth f go wells,p ma date a y ,1982 Ma d , and a map of the Potomac Aquifer, dated May 1982, are attached.
115. Willia. LetteMr o t Razor. rmG , DNREC, froGeorg. mMr e H. Hull, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Ground water report for the first quarter of 1983, 6/21/83 . 200589-200590P . A tabl. f grouno e d water monitoring sample results is attached.
35 116. Memorandu o filt m e fro. J.CmMr . Chaney, E.I u Pond . t de Nemours & Company, Inc. , re: Comments on test borings, 2/1/84 . 200591-200591P . .
117. Letter to Mr. G.H. Hull, E.I. du Pont de Nemours & Company, Inc., froA.D. Mr m . Egler, E.I u Pond .e d t Nemour Company& s , Inc. : Resultre , a geotechnica f o s l drilling program, 2/1/84. P. 200592-200614. A site map and 20 Boring Logs are attached.
118. Letter to Mr. William G. Razor, DNREC, from Mr. George H. Hull, E.I. du Pont de Nemours & Company, Inc., re: Ground water report for the second and third quarters of 1983, 2/21/84 . 200615-200616P . A tabl. f grouno e d water monitoring sample result attacheds i s .
119. . T.ELetteMr .o t r Lewis, E.I u Pon d .e Nemour d t & s Company, Inc., fro. Scot Mr m. Ulrey S t , E.I u Pond .e d t Nemours & Company, Inc., re: Justification for reduction e grounth n i ds water monitoring program, 2/22/84 . 200617-200618P . A Reques. r Fundfo t s form is attached.
120. Handwritten letter to Mr. J.C. Chaney, E.I. du Pont de Nemours & Company, Inc., from Mr. G.H. Hull, E.I. du Pont de Nemours & Company, Inc., re: Summary of test boring activities performe n preparatioi d e salth e f o n of land to CIBA-GEIGY, 2/23/84. P. 200619-200658. The following are attached:
a) Attachmen a lette , 1 t r regardin e resultth g s of a geotechnical drilling program, dated Februar , 19841 y ;
b) a site map;
c) twenty Boring Logs;
d) Attachment 2, handwritten notes regarding core sample results tested for E.P. Toxicity;
a site)e map;
f) Attachment 3, a letter regarding a summary of ground water quality data and hydrological conditions, dated Apri , 198326 l ;
g) a monitoring well location map;
36 h} a map of the Pleistocene Aquifer, dated May 1982; e Potomath f o c p Aquiferma a i) , date y 1982Ma d ;
j) Attachment 4, a letter regarding the transmitta a groun f o l d water report, dated Jun, 198321 e ;
a tablk )f depth o e d rivean s r level measurements; 1} Attachmen a tabl , f 5 leato e d analysen i s ground water monitoring wells SM-d SM-3an 1 .
121. . LetteJ.DMr . o t rLojewski , E.I u Pon .d Nemoure d t & s Company, Inc., fro. J.CmMr . Chaney, E.I u Pond .e d t Nemours & Company, Inc., re: Sampling results to be shared with CIBA-GEIGY, 2/27/84. P. 200659-200659.
122. . R.MLetteMr .o t rSalemi , E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. A.H. Pagano, E.I. du Pont de Nemours & Company, Inc., re: Soil sampling results for boring numbers TB-d TB-10an 1 , 2/28/84 . 200660P . - 200660.
123. Letter to Mr. G.H. Hull, E.I. du Pont de Nemours & Company, Inc., fro. ChristinmMs e Trmal, E.I u Pond . t de Nemours & Company, Inc., re: The Ground Water Conditions Report, 2/29/84 . 200661-200664P . e Th . Ground Water Conditions Report, dated July 1982 to June 1983, and maps of the Pleistocene and Potomac Aquifers, dated June 27, 1983, are attached.
124. Letter to Mrs. Linda N. Shanley, DNREC, from Mr. George H. Hull, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Ground wate re fourt reporth r h fo tquarte f 198d o r an 3 the first quarte f 1984o r , 4/10/84 . 200665-200667P . . o tableTw grounf o s d water monitoring sample results are attached.
125. . S.SLetteMr . o t Ulreyr , E.I u Pon d .e Nemour d t & s Company, Inc., fro. D.MMr m . Kafka, E.I u Pond .e d t Nemours & Company, Inc., re: Response to a ground water survey, 4/13/84 . 200668-200671P . A . Groundwater Questionnair a tabl d f deptho ean e d an s river levels measured on September 19, 1983 are attached.
37 126. . JacLetteMr ko t Chaneyr , E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. Scott Phillips, DNREC, re: DNRE d U.San C . Army Corp f Engineero s se Studth f o y Potomac Aquifer, 6/4/84 200672-200674. P . A . telephone message regarding monitoring well sampling and an envelope are attached.
127. Letter to Mrs. Linda N. Shanley, DNREC, from Mr. Peter E. Kress, re: Ground water report for the second quarte f 1984o r , 8/22/84 . 200675-200677P . A tabl. e of ground water monitoring sample results is attached.
128. Letter to Mrs. Linda N. Shanley, DNREC, from Mr. Peter E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Ground water report for the third quarter of 1984, 11/21/84 . 200678-200679P . A tabl. f grouno e d water monitoring sample results is attached.
129. Lette o Mrst r . Lind . ShanleyN a , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Ground water report for the fourth quarter of 1984, 1/28/85 . 200680-200681P . A tabl. f grouno e d water monitoring sample result s attachedi s .
130. Lette o Mrst r . Lind . ShanleyN a , DNREC, fro. PetemMr r E. Kress, E.I u Pon d .e Nemour d t Company& s , Inc.: re , Ground water report for the first quarter of 1985, 4/3/85 200682-200683. P . A tabl. f grouno e d water monitoring sample result s attachedi s .
131. Lette o U.St r . EPA ,. Scot S fro. tMr m Ulrey, E.Iu d . Pont de Nemours & Company, Inc., re: FOIA request, 4/8/85 . 200684-200685P . A lette. r regardine th g reques s attachedi t .
132. Letter to Mr. Peter Kress, Chambers Works, from Mr. Garth Glenn, NUS Corporation, re: Request for confirmatio f grouno n d water contaminatioe th n i n vicinity of the Du Pont Newport Landfill, 5/21/85. P. 200686-200686.
38 133. . A.BLetteMr .o t rPalmer , E.I u Pon d .e Nemour d t & s Company, Inc., from Mr. P.E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Information on the Holly Run monitoring program, 6/13/85 . 200687-200693P . . e followinTh e attachedar g :
a) a monitoring well designations table;
b} Figure 1, a map of current ground water monitoring program monitoring well locations; e Potomath f o c p Aquiferma a c) , dated Jun, 22 e 1983;
d) a map of the Pleistocene Aquifer, dated June , 198327 ;
o diagramtw e} f geohydrologio s c cross sections.
134. Letter to Mr. William G. Razor, DNREC, from Mr. Peter E. Kress, E.I u Pon d .Nemoure d t Company& s , Inc.: re , Holl n ProposeRu y d Revised Ground Water Monitoring Plan, 6/27/85 . 200694-200775P . e GrounTh . d Water Monitoring Pla s attachedi n .
135. Letter to Mrs. Linda N. Shanley, DNREC, from Mr. Peter . KressE : Grounre , d wate re seconreporth r dfo t quarter of 1985, 8/23/85. P. 200776-200777. A table of ground water monitoring sample result s attachedi s .
136. Letter to Mr. H.G. Foley, E.I. du Pont de Nemours & Company, Inc., fro. ChristinMs m e Trmal, E.I u Pond . t de Nemour Company& s , Inc. : Recommendatiore , n against the reactivation of well WW-13, 9/25/85. P. 200778- 200779.
137. Lette o Mrst r . Lind . ShanleyN a , DNREC, fro. PeteMr m r E. Kress, E.I. du Pont de Nemours & Company, Inc., re: Ground wate re thir reporth dr fo quartet f 1985o r , 12/18/85. P. 200780-200781. A table of ground water monitoring sample results is attached.
138. . LetteRoberMr . o BlairJ t rt u Pont-NewporD , t Pigments Plant, from Mr. Stephen R. Wassersug, U.S. EPA, re: 3004(u d 3008(h)an ) reques r informationfo t , 3/3/86. P. 200782-200784. Definition f "releaseo s d "solian " d waste management unit" are attached.
39 139. Letter to Mr. Stephen R. Wassersug, U.S. EPA, from A.B. Palmer, E.I .u Pon d e Nemourd t Company& s , Inc.: re , Reques r extensiofo t informatioo nt n request, 4/1/86. P. 200785-200785.
140. Letter to Ms. Laura Boornazian, U.S. EPA, from A.B. Palmer, E.I .u Pon d e Nemourd t Company& s , Inc.: re , Response to request for information, 5/19/86. P. 200786-200790 e followinTh . e attachedar g : e locatioth f o f geohydrologi o np ma a) c cross section;
a diagrae geohydrologib)th f o m c cross section;
f grouno p ma d a watec) r flow directioe th n i n Pleistocene Aquifer, dated May 1, 1979;
f grouno p ma d a wated) r flow directioe th n i n Potomac Aquifer ,, 1979 1 date y .Ma d
142. Letter to Mr. Stephen R. Wassersug, U.S. EPA, from R.J. Mattson, E.I . u NemourPon. d de t Company& s , Inc.: re , Respons o request e r informationfo t , 5/21/86. P. 200791-200816. The following are attached:
a) a letter regarding a RCRA Permit Application;
b) a letter regarding a hazardous waste management program;
c) a summary of activity, contents, environmental program d regulatoran , y interface related to the North Disposal Site;
d) a summary of activity, contents, environmental program d regulatoran , y interface relatee Soutth o ht d Disposal Site;
e) a summary of activity, contents, environmental program, and regulatory interface related to the Drying Lagoon;
a lettef) r regardin n on-sita g e inspectiod an n sampling collectiou PonD te th Newpor t a n t Plan d DNRECy U.San b t A .;EP
40 g) a summary of quantity, operating time, and contents of the Abandoned Landfill - North Bank of the Christiana River;
a summarh) f minerao y l deposit e Soutth t ha s Bank of the Christiana River;
summara ) f contenti o ye Dryin th t gsa Lagoon- west end of plant;
j) a letter regarding the landfill on the Newport Pigment Plant Site;
k) a letter regarding waste disposal operations at Newport;
1) a map illustrating the North and South Disposal Sites;
m) a cover page of a report on available site inspection information;
n) a map of the Du Pont Newport Landfill;
o) a map of the Du Pont Newport Landfill and 100 year floodplain;
p) a hand-drawn map of the monitoring well proposal; e Newporth f o t p P PlanDepartmentma C& a - tq ) ;
e proposea hand-drawrth ) f o dp ma npond .
143. Letter to Dr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., from Mr. Bruce P. Smith, U.S. EPA, re: 104 (e) request for information, 7/21/86. P. 200817- 200820 A certifie. d mail receip s attachedi t .
144. Handwritten memorandum to file from Mr. M. Bass, re: A telephone conversation concernin n extensioa g f o n inquiry) (e 4 u Pon10 D o respon tim,t e r th fo e o t d 7/30/86. P. 200821-200821.
41 145. Letter to Mr. Michael Bass, U.S. EPA, from Ms. Pamela Meitner, E.I. du Pont de Nemours & Company, Inc., re: Acknowledgement of receipt of 104 (e) inquiry and a requesn extensioa r fo t f tim o no respondt e , 7/30/86. P. 200822-200822.
146. . MichaeLetteMr o t r l Bass, U.S. EPA, fro. PamelMs m a Meitner, E.I Ponu d .Nemoure d t Company& s , Inc.: re , Response to 104 (e) inquiry, 8/4/86. P. 200823-200823.
147. Letter to Mr. Michael Apgar, DNREC, from Mr. Peter E. Kress, E.I u Pon d .Nemoure d t Company& s , Inc.: ,re Ground wate re fourtreporth r hfo tquarte f 198o rd 5an the first quarte f 1986o r , 9/12/86 . 200824-200826P . . o tableTw grounf o s d water monitoring sample results are attached.
148. Letter to Mr. Michael Bass, U.S. EPA, from Mr. A.B. Palmer, E.I u Pon d .e Nemour d t Company& s , Inc.: ,re Response to request for information, 9/29/86. P. 200827-200828.
149. Letter to Mr. Russel H. Wyer, U.S. EPA, from Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., re: Comment n respons i sproposee th o et d listin u PonD tf o g Newport on the National Priorities List, 3/19/87. P. 200829-200832.
150. Handwritten Site Inspection Summary u PonD , t Newport Landfill, 3/30/87. P. 200833-200839. A sign-in sheet is attached.
151. Letter to Mr. Christopher J. Corbett, U.S. EPA, from Mr. A.B. Palmer, E.I. du Pont de Nemours & Company, Inc., re: Information on Woodward-Clyde personnel, 4/13/87. P. 200840-200858. A letter regarding Woodward-Clyde resume attachede ar s .
152. Letter to Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., fro. StanlemMr y Laskowski, U.S. EPA, ) reques(e 4 r information10 fo t : re , 4/16/87. P. 200859-200865. A concurrence form is attached.
153. Letter to Dr. Alan Palmer, E.I. du Pont de Nemours & Company, Inc., fro. Bruc Mr m. SmithP e , U.S. EPA: re , Period of negotiation, 2/1/88. P. 200866-200867.
42 154. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn u PonD , t Environmental Remediation Services, re: Waste management practice t Newporta s , 9/23/91. P. 200868-200896. The following are attached:
a) a letter regarding corrections to Du Font's waste manifest documents;
a lette ) rb regarding correctedu D item r fo s Pont's waste manifest documents;
c) seven corrected Hazardous Waste Manifests;
d) a letter regarding revised manifests;
e) two revised manifest forms;
n envelopea f} ;
g) a map of the North and South Bank Disposal Sites.
155. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation, re: Partial response ) inquiry(e 4 10 ,e t2/19/90th o . 200897-202510P . e Th . followin e attachedar g :
a) the response to question 1 of the 104 (e) inquiry, attachment throug1 s : 12 h
- Attachmen , Tes1 t t Boring Results, 1/26/84, outside of landfill;
- Attachmen , Tes2 t t Boring Results, 11/9/84, outsid f landfillo e ;
- Attachment 3, Analytical Data for Excavated Soils from Construction of Building A-52, 4/13/87;
- Attachment 4, Soil Characterization for Underground Storage Tank Soils Removed from Outside Building A-200, 10/11/88;
- Attachmen , Soi5 t l Characterizatior fo n Underground Storage Tank Soils Removed from Outside Building A-53, 10/14/88;
43 - Attachment 6, Soil Characterization for Underground Storage Tank Soils Removed from Outside Building A-121, 10/17/88;
- Attachmen , Soi7 t l Characterizatio f Subo n - floor with Building A-100, 12/7/88; - Attachment 8, Duffield Soil Characterization Study, 11/10/88 & 1/89;
- Attachmen , Soi9 t l Characterizatior fo n Proposed Solvent Storage Building, 2/1/89;
- Attachment 10, Soil Analysis of Drying Lagoon Used for Reservoir Aids, 2/23/89;
- Attachment 11, Soil Characterization for A-20 Loading Dock;
- Attachment 12, Soil Characterization Outside of Powerhouse, 12/20/89.
) e respons(e th 4 10 ) o e questiob t eth f o 2 n inquiry, attachments 1 through 9:
- Attachment 1, Discharge Monitoring Reports January 198 1- Present ;
- Attachment 2, NPDES Permit DE0000400 Application, 1981;
- Attachment 3, NPDES Permit DE0000400 Application, 1988;
- Attachmen , Analytica4 t l Dat f Storo a m Sewer Discharges for January 90;
- Attachment 5, Miscellaneous Analytical Data Regarding Zinc Contamination in the Storm Sewer System;
- Attachmen , Miscellaneou6 t s Analytical Data Regarding Stormwater Discharges from Site;
- Attachment 7, Biotoxicity Notifications & Correspondences;
44 - Attachment 8, Static Acute Screening Toxicity Tests for Outfall 001, February 1990;
- Attachmen , Writte9 t n Repor f Video t o Inspectio f Outfalo n 1 Stor00 l m Sewer System, July 1989.
c) the response to question 3 of the 104(e) inquiry, attachmen: 1 t
- Attachment 1, Chemical Inventory Printed by "Area Used" Category.
d) the response to question 4 of the 104(e) inquiry, attachment 1:
- Attachment 1, Question 4 Summary (information concerning ground water monitoring wells).
156. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JosepMr m h J. Sasso, CIBA-GEIGY Corporation, re: Final response to the 104(e) inquiry, 3/23/90. P. 202511-202626. The followin attachede ar g :
a) the response to question 1 of the 104(e) inquiry, attachments 1 through 3:
- Attachment 1, Listing of hazardous wastes generated, disposed r otherwiso , e handled;
- Attachment 2, Listing of Hazardous substances generated, disposed, or otherwise handled in the production area;
- Attachmen Listin, 3 t f hazardougo s substances generated, disposed r otherwiso , e handled in the laboratories.
) e respons(e th 4 10 e o ) questiot b eth f o 2 n inquiry attachment throug1 s : 4 h
- Attachmen , Summarie1 t f hazardouo s s wastes generated and disposed off-site (1985-1990);
- Attachmen RCR, 2 t A Annual Reports 1985- 1989;
45 - Attachmen Summar, 3 t f 198o y 4 hazardous waste generation;
- Attachmen , Hazardou4 t s substances usen i d the laboratories.
c) the response to question 3 of the 104 (e) inquiry, attachments 1 through 7:
- Attachment 1, Summary of perchloroethylene CIBA-GEIGe th t a e Yus Newport plant;
- Attachment 2, Summary of trichloroethylene use at the CIBA-GEIGY Newport plant;
- Attachmen , Perchloroethylen3 t e purchases (1982 - 1989);
- Attachment 4, Perchloroethylene disposed off-site;
- Attachment 5, SARA 313 reporting data for perchloroethylene;
- Attachmen , Perchloroethylene6 t reduction program;
- Attachment 7, Perchloroethylene analytical data.
157. Report: Analytical Report for CIBA-GEIGY Corporation, prepared by Northeastern Analytical Corporation, 12/31/91 . 202627-203439P . e followinTh . e ar g attached:
a) a Laboratory Deliverables form;
a reporb) t entitled "Leak Detectio d Mappinan n g Survey," dated January 27, 1992;
c) a memorandum regarding static testing of the fire water reservoirs ,, 19927 date y Ma ;d
d) a letter regarding transmittal of information requeste y EPAb d , 1992, 28 date y ;Ma d
46 e) a letter regarding an outline of testing to be performed by CIBA-GEIGY Corporation, dated May 28, 1992;
f) Attachmen , Projec2 t t Schedule;
diagraa g) f Maio m n Trunk Lind Connectinan e g Process Sewer Lines;
h) a diagram of the Newport Works Emergency Response Layout;
i) a memorandum regarding the testing of outfall for metals, organics, and biotoxicity.
158. Letter to Mr. Joseph Wutka, Delaware Department of Transportation, fro. JoamMs n Armstrong, U.S. EPA: ,re A request from EPA for copies of the construction plans of Basi r borinnfo Road gan ddata , A/2/92 . 203440P . - 203441. A site map is attached.
159. Handwritten notes, re: Discussion with Ms. Joan Armstrong about 104(e) letters to Du Pont concerning Banning Park, 4/30/92. P. 203442-203442.
160. . RaymonLetteMr o . t HarbesonrM d , Delaware Department of Transportation, fro. Larr mMr . Miller S y , U.S. EPA, reA reques: r informationfo t , 6/22/92 . 203443P . - 203449 e followinTh . e attachedar g :
a) an Information Requirement Enclosure;
b) Enclosure 1, a site map;
c) Enclosure 2, the caption of a diagram of Route 141;
a crosd) s section diagrao borintw f go m wells.
161. . RaymonLetteMr o t rd Richter, Delaware Departmenf o t Transportation, froWayn. Mr m e Walters, U.S. EPA: re , Extensio f tim o n respono informatioe t th o t d n request, 7/24/92 . 203450-203450P . .
162. Handwritten summary notes, re: Thiorated nickel, prepared by P.E. Kress, (undated). P. 203451-203470. e followinTh attachede ar g :
47 a) a background information outline;
b) handwritten notes regarding radiation;
c) a letter regarding radioactive thorium waste, dated Jul , 19795 y ;
d) handwritten notes regarding thoriated nickel;
a pre-startue} p safety survey dated Novembe, 6 r 1961;
a lettef) r regarding licensin o authorizt g e th e f thoriuo e u PonD us mte saltth Newpor t a s t plant, dated Octobe , 196116 r ;
g) two envelopes.
163. . JosepLetteMr o t hr Wutka, Stat f Delawaro e e Departmen f Transportationo t , fro. JoamMs n Armstrong, U.Se constructioth . r EPA fo : Requesre A , EP n y b t plans of Basin Road, 4/2/92. P. 203471-203473. A site a certifie d an p dma mail receip e attachedar t .
164. Letter to Mr. Joseph Wutka, State of Delaware Department of Transportation, from Ms. Joan Armstrong, U.S. EPA, re: Request for additional maps of Basin Road, 4/23/92 . 203474-203475P . A facsimil. e transmittal sheet is attached.
165. Letter to Ms. Joan Armstrong, U.S. EPA, from Mr. Joseph T. Wutka, State of Delaware Department of Transportation : Accesre , s Road Plan d specifican s n o s borings A-Z, R-5, and R-9 requested by EPA, 5/6/92. P. 203476-203476.
166. Letter to Mr. Raymond M. Harbeson, State of Delaware Department of Transportation, from Mr. Larry S. Miller, U.S. EPA, re: 104 (e) request for information, 6/22/92. P. 203477-203484 e followinTh . e attachedar g :
a) an Information Requirement Enclosure; a sitb)e map; c) the caption of a site plan; borina d) g well cross-section diagram; e) a certified mail receipt.
48 167. Telephone conversation record of J.A. with Mr. Raymond Richter, DelDOT [sic], re: Request for an extension to ) inquiry(e 4 10 respon,e 7/2/92th o t d. 203485 P . - 203485.
168. Letter to Mr. Raymond Richter, State of Delaware Department of Transportation, from Mr. Wayne Walters, U.S. EPA, re: Granting of an extension of time to inquiry) (e 4 10 respon,e 7/24/92th o t d 203486. P . - 203488 o certifieTw . d mail receipt e attachedar s .
169. Letter to Mr. Larry S. Miller, U.S. EPA, from Mr. Raymond D. Richter, State of Delaware Department of Transportation ) inquiry: Respons(e re ,4 10 ,o t e 8/17/92 . 203489-203826P . e followinTh . e ar g attached:
o enveloptw a) e address labels;
) response (e 4 th b10 ) e questioo t eth f o 1 n inquiry;
c) the response to question 2 of the 104 (e) inquiry, parts a through c;
) e respons(e th 4 d10 ) o e questiot eth f o 3 n inquiry, parts a and b;
e} the response to question 4 of the 104(e) inquiry, parts a through f;
e responsth f) e o 104(equestiot eth f o ) 5 n inquiry;
g) the response to question 6 of the 104(e) inquiry;
h) construction plans, sheet numbers 17, 32 through 35, 42, 43, 49, and 50;
i) boring well cross-section diagrams, sheet number 1 throug15 s h 157.
170. . JosepLetteMr o ht r Stasso, Ciba-Giegy, fro, mMr Thoma . VoltaggioC s , U.Slette) (e 4 .r 10 EPA : re , request for information, 2/7/90. P. 203827-203831.
49 III. REMEDIAL RESPONSE PLANNING
1. . GerardLetteMr o t ro Amador, U.S. EPA, fro. JosepMr m h J. Hardman, DNREC, re: State of Delaware comments on thu Pont-NewporD e t Site Consent Order, Remedial Investigation/Feasibility Study Work Plan, and Hydrogeology Report, 3/17/88 . 300001-300008P . . 2. Report: Remedial Investigation/Feasibility Study, Review of Existing Information, Holly Run Plant Site. Newport, Delaware, prepared by Woodward-Clyde Consultants, 3/21/88. P. 300009-300055.
3. Report: Work Plan, Remedial Investigation/Feasibility Study. Vol. Ill, Quality Assurance Project Plan and Health and Safety Plan, Du Pont-Newport Site, Newport. Delaware, prepared by Woodward-Clyde Consultants, 4/7/88 . 300056-300472P . .
4. . AlaLette Dr . PalmerB no t r , E.I .u Pon d e Nemourd t & s Co., fro. Fran mMr . Waller S k , Woodward-Clyde Consultants, re: Transmittal of a Site Development Study, 4/18/88. P. 300473-300656. The study is attached.
5. Report: Preliminary Health Assessment for E.I. Du Pont-Newport Plant Landfill, Newport. Delaware, prepare y Officb d f Healto e h Assessment, Agencr fo y Toxic Substances and Disease Registry, U.S. Public Health Service, 5/11/88. P. 300657-300659.
6. . LetteDianMs o et r Simms, U.S. EPA, fro. JohMr . mE n Farrell, II, Environmental Testing and Certification Corp., re: Transmittal of the performance and audit information, 6/8/88 . 300660-300812P . e Th . performance and audit information is attached.
7. Letter to Mr. Gerardo Armador [sic], U.S. EPA, from Mr. Paul Fikac, Jacobs Engineering Group Inc., re: Transmitta papea f o lr entitled "Geological Factors that Influence Radon Availability, a stud d n o yan " "Potential Biotransformation Chemicaf so l Compounds Detected at the Byers Warehouse Site," 6/13/88. P. 300813-300850. The paper and study are attached.
50 8. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. A. B. Palmer, E.I u Pon. d e Nemourd t Company& s , Inc.: ,re Transmitta f Woro l k Plan, Remedial Investigation/ Feasibility Study, 7/28/88. P. 300851-300851.
9. . AlaLette Dr . PalmerB no t r , E.I u Pon.d e Nemourd t & s Company, Inc., from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Transmittal of Work Plan, Remedial Investigation/Feasibility Study, 7/29/88. P. 300852- 301009. The Work Plan is attached.
. Report10 : Work Plan, Remedial Investigation/Feasibility Study. Du Pont-Newport Site, Newport. Delaware, Volume 2. Appendices A to F, prepared by Woodward-Clyde Consultants, 7/28/88 301010-301552. P . .
11. Report: Work Plan, Remedial Investigation/Feasibility Study u Pont-NewporD , t Site, Newport. Delaware, Volume 3. Appendices G to L, prepared by Woodward-Clyde Consultants, 7/28/88 . 301553-301942P . .
12. . GerardLetteMr o t r. AmadorR o , U.S. EPA, fro. mMr Josep . HardmanF h , DNREC : Generare , l commente th n o s revised Remedial Investigation Work Plan (second revision), 8/22/88. P. 301943-301943.
13. Letter to Mr. Gerardo Amador, U.S. EPA, from Mr. Raymon . HinkleL d , Woodward-Clyde Consultants: re , Aquatic Biota sampling, 9/6/88 . 301944-301944P . .
14. . AlaLette Dr . PalmerB n o t r , E.I u Pon. d e Nemourd t & s Company, Inc., from Mr. Gerardo R. Amador, U.S. EPA, : Approvare e Remediath f o l l Investigation/Feasibility Study Work Plan, 9/22/88. P. 301945-301948. A Remedial Investigation/Feasibility Study schedule and a letter regardin e reviseth g d Remedial Investigation/Feasibility Stud e attachedar y .
15. Memorandu . GerardMr o t mo Amador, U.S. EPA, fro. Mr m Randal . WaiteG l , U.S. EPA : Comment,re e th n o s Du Pont-Newport Remedial Investigation/Feasibility Study Work Plan, 9/26/88. P. 301949-301949.
51 16. Letter to Mr. Ray Hinkel, Woodward-Clyde Consultants, from Ms. June Mirecki, U.S. EPA, re: Confirmation of telephone conversatio f Septembeo n , 19822 rn whic 8i h the Christiana River sediment sampling sites were established, 9/26/88. P. 301950-301951. A site map approximating sediment sampling location s attachedi s .
. . GerardLette17 Mr o t ro Amador, U.S. EPA, fro. PaumMr l J. Fikac, Jacobs Engineering Group Inc. : Spli,re t sampling activities, 11/15/88. P. 301952-301954.
18. . DianLetteMs o nt r [sic] Simms, U.S. EPA, fro. mMr Gerardo Amador, U.S. EPA : Transmitta,re o tw f o l reports entitled "Quality Assurance/Quality Control Audit Phase I - Remedial Investigation Data, Du Pont- Newport Site, Wilmington, Delaware, d "Chemistran " y Report - Du Pont-Newport Site," 11/15/88. P. 301955- 301987 e QualitTh . y Assurance/Quality Control Audit report is attached.
19. Contract Laboratory Program, Regional/Laboratory Communication System Telephone Record Log, re: Traffic report copie r samplfo s e numbers CQ14 d CQ141an 0 , 11/17/88. P. 301988-301988.
20. Letter to Ms. Annette Lage, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc., re: Transmittal e correcteoth f d sample shippind traffian g lo cg reports, 11/17/88 . 301989-301992P . e samplTh . e shippind traffian g lo cg report e attachedar s .
21. Memorandum to Mr. Gerardo Amadour [sic], U.S. EPA, from Ms. Diann Sims [sic], U.S. EPA : Revie,re f Qualito w y Assurance/Quality Control Audit Report and transmittal oa Regiof I DatII na Review Report, 11/22/88. P. 301993-302084. The Data Review Report is attached.
. Memorandu22 . GerardMr o t mo Amador, U.S. EPA, fro. Ms m Diana Baldi, U.S. EPA, re: Transmittal of the Organic Data Validation Review, 12/16/88. P. 302085-302139. e revieTh s attachedi w .
23. Contract Laboratory Program, Regional/Laboratory Communication System Telephone Record Log: ,re Receipt a "fiel f o s d blank P "sampl CL wit o n he number, 12/22/88. P. 302140-302141.
52 24. Telephone conversation record of Mr. Mike Apgar, DNREC, witRand. Mr h y Sturgeon, U.S. EPA : ,Draininre f o g aquifer to Christiana River, 1/2/89. P. 302142-302142.
25. Memorandum to Mr. Gerardo Amador, U.S. EPA, from Ms. Diana Baldi, U.S. EPA : Transmittare , e th f o l Inorganic Data Validation Review, 1/5/89 . 302143P . - 302160 e revieTh .s attachedi w .
. . GerardLette26 Mr o t ro Amador, U.S. EPA, fro. PauMr m l J. Fikac, Jacobs Engineering Group Inc : ,Grounre d water split sampling activities, 1/19/89 . 302161P . - 302167 o ChaiTw .f Custodo n y Recordo Organitw d san c Traffic Reports are attached.
27. Letter to Ms. Annette Lage, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc., re: Transmittal e correcteoth f d sample shipping log, 2/1/89. P. 302168-302169. The sample shipping log is attached.
28. Memorandum to Mr. Gerardo Amador, U.S. EPA, from Ms. Theresa A. Simpson, U.S. EPA, re: Transmittal of the Organic Data Validation Review, 2/27/89 . 302170P . - 302221 e revieTh .s attached i w .
29, Memorandu . GerardMr o t m o Amador, U.S. EPA, fro. Ms m Theresa A. Simpson, U.S. EPA, re: Transmittal of the Organic Data Validation Review, 2/28/89. P. 302222- 302237. The review is attached.
. Ala. Lette 30 . Dr PalmernB o t r , E.I .Ponu d Nemoure d t & s Company, Inc., from Geral . CoyleT d , Woodward-Clyde Consultants : Transmittare , f Qualito l y Assurance/Quality Control Audit, 3/8/89. P. 302238- 302268 e audiTh s attached.i t .
31. Memorandum to Mr. Gerardo Amador, U.S. EPA, from Ms. Theresa A. Simpson, U.S. EPA, re: Transmittal of the Organic Data Review, 3/20/89 . 302269-302361P . e Th . revie s attachedi w .
32. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Transmitta f Wetlando l s Investigation Report, 3/23/89. P. 302362-302510. The report is attached.
53 33. Memorandu . GerardMr o t mo Amador, U.S. EPA, fro. Ms m Theresa A. Simpson, U.S. EPA, re: Transmittal of the Inorganic Data Review, 3/29/89 . 302511-302528P . e Th . review is attached.
34. Memorandu . GalinMs . o ChadwickB t ma , DNREC, fro. Ms m Diane E. Wehner, DNREC, re: Comments on the wetlands investigation, 4/10/89 . 302529-302530P . .
35. Letter to Dr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., from Mr. Gerardo Amador, U.S. EPA, re: Transmittal of EPA's comments on the Wetlands Investigation and the Federal Manual for Identifying and Delineating Jurisdictional Wetlands, 4/27/89. P. 302531-302536. The comments are attached.
36. . GerardLetteMr o . t AmadorrR o , U.S. EPA, fro. Mr m Roger T. Gresh, Woodward-Clyde Consultants, re: Transmittal of Data Sufficiency Memorandum, 4/27/89. P. 302537-302537.
. . AlaLette 37 . Dr PalmerB n o t r , E.I u Pon d .e Nemour d t & s Company, Inc., from Roger T. Gresh, Woodward-Clyde Consultants, re: Transmittal of Data Sufficiency Memorandum, 4/27/89 . 302538-302538P . .
38. Letter to Dr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., fro. BernarDr m . FranksJ d , Woodward- Clyde Consultants : Transmittare , f Dato l a Sufficiency Memorandum, 4/27/89. P. 302539-302975. The memorandum is attached.
39. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. James V. Husted, Woodward-Clyde Consultants, re: Transmitta f Pre-Screenino l g Remedial Alternatives Report, 5/23/89. P. 302976-302976.
40. Letter to Dr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., fro. Jame Mr m. Husted V s , Woodward-Clyde Consultants : Transmittare , f Pre-Screenino l g Remedial Alternatives Report, 5/23/89. P. 302977-303007. The repor s attachedi t .
41. . RandLetteMr yo t rSturgeon , U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Transmittal e Phas oI th Wetlandf II e s Investigation Work Plan, 6/8/89 303008-303008. P . .
54 42. . AlaLette Dr . PalmerB n o t r , E.I u Pon d .e Nemour d t & s Company, Inc. , from Mr. Raymond L. Hinkle, Woodward- Clyde Consultants, re: Transmittal of the Phase III Wetlands Investigation Work Plan, 6/8/89 . 303009P . - 303027 e WorTh .k Pla s attachedi n .
. Telephon43 e conversation . RandrecorMr yf o dSturgeon , U.S. EPA, wit. Pau Mr h. l Dougla Dr Fika d an sc Gonzales, Jacobs Engineering Group; Mr. Roger Gresh and Dr. Ben Franks, Woodward-Clyde Consultants . StevMr d e ;an Johnson, DNREC, re: Du Pont-Newport Radiology Study, 6/23/89. P. 303028-303030. A handwritten transcript of the telephone conversation is attached.
44. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Paul Fikac, Jacobs Engineering Group Inc., re: Transmittal of an article entitled "The Mobility of Thorium in natural waters at low temperatures," 6/28/89. P. 303031-303045 e articlTh . s attachedi e .
45. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Barry A. Vittor, Barry A. Vittor & Associates, Inc., re: Transmittal of the Statement of Qualifications for Bioassays and Biological Assessments for Hazardous Waste Sites, 8/7/89. P. 303046-303082. The statement of qualifications is attached,
. Telephon46 e conversation . RandrecorMr yf o d Sturgeon, U.S. EPA, with Mr. Paul Fikac, Jacobs Engineering Group, re: Du Pont-Newport wetlands sampling, 8/10/89. P. 303083-303083.
47. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc. : Repor,re f o t field activities for the week of August 8 to 11, 1989, 8/31/89. P. 303084-303087.
48. Memorandum to Ms. Colleen Walling, U.S. EPA, from Mr. Paul Fikac, Jacobs Engineering Group Inc., re: Transmittal of SAS request for split sampling for radionucleide analysis, 9/26/89 . 303088-303167P . . The SAS request is attached.
55 49. Telephone conversation . RogerecorMr f ro d Gresh, Woodward-Clyde Consultants . AlycMs d e an ,Fritz , National Oceanic and Atmospheric Administration (NOAA) with Mr. Randy Sturgeon, U.S. EPA, re: Du Pont-Newport fish tissue detection limits, 10/2/89 - 10/3/89. P. 303168-303168.
50. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Theresa A. Simpson, U.S. EPA, re: Transmittal of the Inorganic Data Validation Review, 10/18/89. P. 303169- 303188 e revieTh .s attachedi w .
51. . RandLetteMr o yt rSturgeon , U.S. EPA,. J fro. Mr m David Martin, Teledyne Isotopes : Transmitta,re f lo analytical procedures for the determination of Ra-228, 10/20/89 . 303189-303199P . e analyticaTh . l procedures are attached.
52. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Theresa A. Simpson, U.S. EPA, re: Transmittal of the Organic Data Validation Review, 10/23/89 . 303200P . - 303258. The review is attached.
. Memorandu53 . ColleeMs o t m n Walling, U.S. EPA, fro. Mr m Randy Sturgeon, U.S. EPA, re: SAS Request for Radionucleide Analysi u Pont-NewporD t sa t National Priorities List (NPL) Site, 11/6/89. P. 303259-303260.
54. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Transmittal of Data Sufficiency Supplement, 11/8/89. P. 303261- 303261.
. Ala. Lette 55 . Dr PalmerB n o t r , E.I u Pon d .e Nemour d t & s Company, Inc., froRoge. mMr Gresh. T r , Woodward-Clyde Consultants : Transmittare , f Dato l a Sufficiency Supplement, 11/8/89 . 303262-303531P . e reporTh . s i t attached.
56. Telephone conversation record of Mr. Bill Belanger, U.S. EPA, with Mr. Randy Sturgeon, U.S. EPA, re: Du Pont-Newport radiological contamination, 11/29/89. P. 303532-303532.
56 57. Memorandum to Mr. Mike Bass, U.S. EPA, from Mr. Bill Belanger, U.S. EPA, re: Radiation at the site, 11/29/89. P. 303533-303537. A publication entitled "Nationwide Occurrence of Radon and Other Natural Radioactivit n Publii y c Water Supplies s attachedi " ,
58. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. A.B. Palmer, E.I. du Pont de Nemours & Company, Inc., re: Transmittal of requested information, 12/7/89. P. 303538-303550 e followinTh . e attachedar g : a) a letter regarding close out surveys;
attachmenn a b) t regarding radiological concerns of disposal procedures;
n attachmena c) t regarding radiation levels;
n attachmena d) f standaro t d operating instruction r disposafo s f wasto l e materials; a lette ) re regardin a Nucleag r Regulatory Commission site visit; f) three sketches showing burial locations for thorium;
g) handwritten notes regarding thorium.
59. Map of area surrounding Du Pont-Newport Landfill and Tow f Newporo n t Wells, (undated) . 303551-303551P . .
. Newpor60 t Plant Sewer Map, Schematic Layout, Shee, 1 t drawn by CER, 2/8/84. P. 303552-303552.
61. Report: Work Plan, Remedial Investigation/Feasibility Study Font-Newporu D , t Site, Newport. Delaware, Volume III. Attachment A - Quality Assurance Project Plan fOAPP) and Attachment B - Health and Safety Plan (HASP). prepared by Woodward-Clyde Consultants, 4/7/88. P. 303553-303971.
This information has been considered Confidential Business Information. 57 . Performanc62 e Evaluation Sampl Laboratord an e y Performance Audits information package, prepared by Environmental Testin d Certificatioan g n Corporation, 6/8/88 303972-304123. P . A cove. r lette s attachedi r . 63. Letter to Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, from Mr. Gerardo R. Amador, U.S. EPA, re: EPA comment e reviseth n o sd Remedial Investigation/ Feasibility Study (RI/FS), 6/24/88 304124-304131. P . .
64. Report: Revisio , Qualit2 n y Assurance Project Plan (OAPP r RemediaFo ) l Investigation/Feasibility Studyu D . Pont-Newport Site, prepare Woodward-Clydy b d e Consultants, 7/28/88 . 304132-304617P . .
65. . GerardLetteMr o t r. Amador R o , U.S. EPA, fro. Mr m Roger T. Gresh, Woodward-Clyde Consultants, re: Analytical data for the Du Pont-Newport Site, 2/21/89. P. 304618-304618. . Report66 : Water Well Sampling. Summar Analyticaf o y l Results, prepare E.Iy db Ponu . d Nemoure td Company& s , Inc., 3/28/89 . 304619-304635P . A transmitta. l slip is attached.
67. Letter to Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., froGerard. mMr Amador. R o , U.S. EPA, A comment EP o reportstw : n re o s , 4/27/89 . 304636P . - 304640. The comments are attached.
68. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Data sufficiency meeting summary, 5/17/89. P. 304641- 304643.
69. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Mar Noll. R k , U.S. EPA : Concernre , s about future work Pont-Newporu D e ath t t Site, 5/18/89 . 304644P . - 304645.
. Ala. Lette70 . Mr PalmerB n o t r , E.I u Pon .d Nemoure d t & s Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Comment e Datth a n o sSufficienc y memorandum, 6/21/89. . 304646-304651P e Dat th A copa . f o Sufficiency y memorandum is attached.
58 71. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Phase III Wetlands Work Plan, 7/25/89. P. 304652-304656. 72. Letter to Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Data sufficiency meeting, 8/3/89. P. 304657-304657. 73. Report: Statement of Qualifications for Barry A. Vittor & Associates. Inc., prepared by Barry A. Vittor & Associates, Inc., 8/7/89 . 304658-304695P . .
74. Report: Quality Assurance Project Plan, prepared by' CompuChem Laboratories, 9/7/89. P. 304696-305026.
75. Report: Laboratory Quality Assurance Plan, prepared by Lancaster Laboratories, 8/22/89 . 305027-305142P . .
. Report76 : Monthly Progres s, prepare Repor13 . y No tb d Woodward-Clyde Consultants, 9/7/89 305143-305144. P . .
77. Report: 1989 Qualification Manual, prepared by Lancaster Laboratories, 9/7/89. P. 305145-305249. . Report78 : Phas I WetlanII e d Investigation Technical Data Summary Report Pont-Newportu D . , prepare Woodwardy db - Clyde Consultants, 9/7/89 . 305250-305511P . .
. Telephon79 e conversation Rand. recorMr yf o d Sturgeon, U.S. EPA, with Mr. Paul Filrac, Jacobs Engineering Group Inc. : Sedimenre , t samples, 9/27/89 . 305512P . - 305512.
80. Report: Handbook of Suggested Practices for the Design and Installation of Ground-Water Monitoring Wells. prepare U.Sy db . EPA, 10/89 305513-305547. P . e Th . following are attached:
a lettea) r regardin A positioEP g n drillino n g mud;
b) Hollow-Stem Auger information;
This informatio bees nha n considered Confidential Business Information. This informatio bees nha n considered Confidential Business Information. 59 c) a magazine article;
d) excerpt fro a reporm t entitled "RCRA Ground- Water Monitoring Technical Enforcement Guidance Document;" ) e excerpt for a reporm t entitled "Practical Guid r Ground-Watefo e r Sampling." 81. Report: Monthly Progress Report No. 14. prepared by Woodward-Clyde Consultants, 10/6/89. P. 305548-305552. A memorandum regarding fish tissue analysis is attached.
. Telephon82 e conversation Rand. recorMr yf o dSturgeon , U.S. EPA, with Ms. Laurie Brown, CRL, re: Review of SAS request, 11/2/89. P. 305553-305553. 83. Telephone conversation record of Mr. Randy Sturgeon, U.S. EPA, wit. DaviMr h d Martin, Teledyne: re , Radionucleides, 11/2/89. P. 305554-305554.
. Telephon84 e conversation Rand. recorMr yf o d Sturgeon, U.S. EPA, with Mr. Paul Filrac, Jacobs Engineering Group Inc.: Radionucleidre , e samples, 11/3/89. P. 305555-305555.
85. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA: Wetlanre , d splits, 11/6/89. P. 305556-305556.
86. Recor f telephono d e conversatio . RandMr f yo n Sturgeon, U.S. EPA Taftn , Ke wit,r permits. Ai hMr DNREC : re , 11/28/89 . 305557-305557P . .
87. Report: Monthly Progres s, prepareRepor16 . No y tb d Woodward-Clyde Consultants, 12/8/89. P. 305558-305560. 88. Report: Phase III Wetlands Investigation Technical Data Summary Report u Pont-NewporD , t Site, preparey b d Woodward-Clyde Consultants, 1/90. P. 305561-305814.
89. Report: Monthly Progress Report No. 17, prepared by Woodward-Clyde Consultants, 1/10/90. P. 305815-305817.
60 90. Letter to Mr. Alan B. Palmer, E.I. du Pont de Nemours & Company, froRand. mMr y Sturgeon, U.S. EPA : Groun,re d water data information, 1/17/90. P. 305818-305820. A s attachedi sitp ema .
. . RandLette91 Mr o yt r Sturgeon, U.S. EPA, fro. Mr m Stephen F. Johnson, DNREC, re: Du Pont-Newport meeting, 2/12/90. P. 305821-305822.
92. Facsimile sheet to Mr. Randy Sturgeon, U.S. EPA, from Ms. Doris J. Foster, U.S. Nuclear Regulatory Commission (USNRC) : Informatiore , n pertaininu PontD e -th o t g Newport Site, 2/22/90. P. 305823-305902. The following are attached: a) a letter regarding a telephone inquiry;
memorandua ) b m regarding confirmatioa f no telephone conversation; a lette ) rc regarding safety inspection 81-11; d) USNRC Offic f Inspectioo e d Enforcemenan n t Report; e) a handwritten note regarding information previously sent;
f) three U.S. Atomic Energy Commission (USAEC) Source Material Licenses;
a letteg) r regarding extensioe th f o n expiration date of USAEC Source Material Licens . STB-489No e ;
h) a letter regarding amending part of USAEC Source Material License No. STB-489;
nota i)e regarding inspectiou PontD e -th f o n Newport Site;
j) USNRC Office of Inspection and Enforcement Report; k) letter regarding discontinuatiof o n operations performed under USAEC Source Material License No. STB-489;
61 ) 1 letter regarding surve f drain-gutterso y ; m) letter regarding agreement between E.I. du Pon e Nemourd t d Fansteean s l Metallurgical Corporation;
n) letter regarding Source Material License No. STB 489 expiration; ) o letter regarding renewa f Sourclo e Material License No. STB-489; o lettertw s) p regarding withholdin Appendif o g x B from public inspection;
o memorandumtw q) s regarding withholding Appendi; B x r) memorandum regarding summard an f o y withholdin f Appendio g ; B x
s) letter regarding renewa f Licenso l . STBeNo - 489;
t) USAEC Applicatio r Sourcfo n e Material License No. STB-489; u) supplemental information pertaining to license No. STB-489; v) notice regarding Appendix B information;
w) USAEC Inspection Finding d Licensean s e Acknowledgement for License No. STB-489;
x) letter regarding amendin f Sourco g e Material License No. STB-489;
y) letter regarding approva a containe f o l r fo r shipmen f radioactivo t e material;
z) notice regarding Appendix B information; aa) letter regarding amendmen f Licenso t e STB- 489;
bb) letter regarding tests on effluent;
62 cc) memorandum regarding test effluentn so ;
dd) letter regarding reques r informatiofo t o t n be treate confidentials a d ;
ee) memorandum regarding confidentialitf o y information; ) memoranduff m regarding amendin Licensf o g , eNo STB-489; gg) letter regarding transfe operationf ro a o st new location;
hh) letter regarding vents and testing;
) noticii e regarding Appendi; xA jj) letter regarding amendment to Source Material License No. STB-489;
kk) letter regarding use of Thorium;
11) notice regarding Appendix A; mm) letter regarding processing of License No. STB-489;
) noticnn e regarding Appendi; A x ) letteoo r regarding withholdin f Appendio g A x from public inspection;
pp) letter regarding compliancf o e eus wite th h Thorium;
qq) amendmen Appendio t ; A x rr) letter regarding reques a license r fo t ;
ss) letter regarding request for a license for the Newport plant. . Ala. Lette 93 Palmer. Dr B n o rt , E.I u Pon d .Nemoure d t & s Company, from Mr. Randy Sturgeon, U.S. EPA, re: Comment n pre-screenino s f Remediao g l alternatives, 2/26/90 . 305903-305904P . .
63 m HillTi . . ,Lette94 Mr E.I o u Pont r d . e Nemour d t & s Company, froRand. mMr y Sturgeon, U.S. EPA : Datre , a sufficiency for the RI report, 3/8/90. P. 305905- 305909. A proposed schedule is attached.
. Memorandu95 . RoberMr o t m Ambrose, U.S. EPA, fro. Mr m Randy Sturgeon, U.S. EPA, re: Request for technician assistance, 3/8/90 . 305910-305910P . .
. Telephon96 e conversation . ChucrecorMr kf o dMcNally , DNREC, with Mr. Randy Sturgeon, U.S. EPA, re: Wetlands at the Du Pont-Newport Site, 3/8/90. P. 305911-305911.
. . RandLette97 Mr yo t rSturgeon , U.S. EPA, fro. AlycmMs e T. Fritz, U.S. Department of Commerce, re: Review of Phase III Wetlands Investigation, 3/20/90. P. 305912- 305915. 98. Telephone conversation record of Mr. Roy Smith, U.S. EPA, wit Rand. hMr y Sturgeon, U.S. EPA : Maximure , m metals of fish tissue data, 3/28/90. P. 305916-305916.
99. Letter to Mr. Tim Hill, E.I. du Pont de Nemours & Company, froRand. mMr y Sturgeon, U.S. EPA: re , Comment n revieo s f Phas o wI Wetland II e s Investigation, 3/29/90. P. 305917-305920.
100. Memorandum to Mr. Bob Ambrose, U.S. EPA, from Mr. Jim Lazorchak, U.S. EPA re: Comments on Phase III Wetlands Investigation Technical Data Summary Report, 4/9/90. P. 305921-305931. The following are attached: a) a memorandum regarding review of Phase III Wetlands Investigation;
memorandua ) b m regardingu D comment e th n o s Pont-Newport Site;
c) Technical Assistance notes; d) handwritten notes regarding PhasI II e Wetlands Investigation,
101. Report: Draft Work Pla Phas- n I RemediaII e l Investigation/Feasibility Study, Du Pont-Newport Site, prepared by WoodwardrClyde Consultants, 4/12/90. P. 305932-305964. Three cover letters are attached.
64 102. Letter to Mr. Tim Hill, E.I. du Pont de Nemours & Company, froRand. mMr y Sturgeon, U.S. EPA : Reviere , w of Componene Drafth tf o Wor tA k Plan, 4/24/90. P. 305965-305966.
103. . LetteRandMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report No. 21, 5/9/90. P. 305967-305969. 104. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA : ,Trire p report, 5/9/90. P. 305970-305971.
105. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. RogemMr r . GreshT , Woodward-Clyde Consultants : Reviere , w comments of the Draft Work Plan, 5/31/90. P. 305972- 305975.
106. Report: Preliminary Physical Characterizatio f Poino n t Source Discharge Newporf so t Facility, Newport, Delaware, prepare y S.Tb d . Hudson Engineers, Inc., 6/13/90. P. 305976-306014.
107. . RandLetteMr o yt r Sturgeon, U.S. EPA, froRoge. Mr m r T. Gresh, Woodward-Clyde Consultants : Drafre , t Work Plan and Progress Report No. 22, 6/21/90. P. 306015- 306020. 108. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Commentre , n o s Supplemental Phas I WetlandII e s Investigation, 7/5/90. P. 306021-306027.
109. . RicLetteMr ko t Greenr , DNREC, fro. RandMr m y Sturgeon, U.S. EPA, re: Lead levels in fish, 7/5/90. P. 306028-306040. Seven Tissue Analyses chartso tw , Blood Lead Contamination charts memorandua d an , e ar m attached. 110. Handwritten note n recommendationo s e Christianth r fo s a River near Newport, DE, 7/13/90. P. 306041-306046. A facsimile cover sheet handwrittea , n transmittal note, an a record f communicatioo d e attachedar n .
65 111. Lette. RandMr o yt r Sturgeon, U.S. EPA, froRoge. mMr r T. Gresh and Mr. Alfred M. Hirsch, Woodward-Clyde Consultants : Drillinre , g procedure r wellsfo s , 7/17/90 . 306047-306052P . o SchematiTw . c Diagramd an s a recor f communicatioo d e attachedar n .
112. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants : Welre , l location MW-28, 7/18/90. P. 306053-306054. A Full Horizon Soil Analyses chart is attached.
113. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Alyce T. Fritz, U.S. Department of Commerce, re: Review of the Phase III Wetlands Investigation, 7/25/90. P. 306055-306056.
114. Telephone conversation . Rogerecor Mr . GreshT f ro d , Woodward-Clyde Consultants, with Mr. Randy Sturgeon, U.S. EPA, re: Well drilling, 8/1/90. P. 306057- 306057.
115. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Anthon . VelliosJ y , Dynamac Corporation : Monthlre , y Field Trip Report, 8/2/90 . 306058-306082P . A lette. r and handwritten notes from the field trip are attached.
116. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Timothy J. Hill, E.I. du Pont de Nemours & Company, Inc., re: Screen intervals for ground water monitoring wells, 8/3/90 . 306083-306083P . . 117. Recor f communicatioo d o filt n e fro. RandmMr y Sturgeon, U.S. EPA : ,Phas re I welII el screening placement, 8/8/90. P. 306084-306095. The following are attached:
a) handwritten notes on a meeting with Woodward- Clyde Consultants;
lettea copa bf ) o y screen o r n intervals with handwritten notes;
a sitc)e map; d) handwritten on-site boring notes;
e) handwritten attendance list of a meeting at Holly Run.
66 118m Hill.Ti . ,Lette Mr E.I o u Pont r d . e Nemour d t & s Company, from Mr. Randy Sturgeon, U.S. EPA, re: Response to comments on the Phase III Wetlands RI/FS study, 8/9/90. P. 306096-306120. The following are attached:
a facsimila) e cover sheet;
b) a memorandum regarding methods for determining amorphous iron oxides;
a reporc) t entitled "Determinatio f Sorbeo n d Metals, Amorphic Fe, Oxidic Mn, and Reactive Particulate Organic Carbon in Sediments and Soils;"
d) letter regarding lead levels in fish;
e) seven Tissue Analyses charts;
f) two Blood Lead Contamination charts. 119. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA, re: Well screening depths, 8/19/90. P. 306121-306121.
120. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. RogemMr r . GreshT , Woodward-Clyde Consultants : Shallore , w soil analysis, 8/17/90 306122-306126. P . soio Tw .l analyses charts and a record of communication are attached.
121. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Phase III Drilling Program and Progress Report No. 24, 8/20/90. P. 306127-306132. Two site maps are attached.
122. . JosepLetteMr o t hr Sasso, CIBA-GEIGY Corporation, from Mr. Richard A. Long, S.T. Hudson Engineers Inc., re: Surve f exposeo y d outfall lines alone th g Christiana River, 8/22/90. P. 306133-306134.
123. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Richar . GreeneW d , DNREC : Leare , d contamination i n fish, 8/31/90 . 306135-306141P . o A lettetw . d an r Blood Lead Contamination chart e attachedar s .
67 124. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMr Robert B. Ambrose, Jr., re: Speciation modeling and sensitivity testing, 9/19/90. P. 306142-306157. A memorandum, information on sensitivity testing, and information on sulfide in sediments are attached.
125. Handwritten letter to Randy from Eric, re: Sediment sampling, 9/24/90 . 306158-306158P . . 126. Handwritten memorandum to Mr. Randy Sturgeon, U.S. EPA, fro. JamemMr s Buczala, Woodward-Clyde Consultants: re , Screen settings for well clusters 29 and 34, 9/24/90. P. 306159-306159. 127. Letter to Mr. Tim Hill, E.I. du Pont de Nemours & Company, froRand. mMr y Sturgeon, U.S. EPA: re , Request for work to be done as part of the RI, 10/2/90. P. 306160-306161. 128. Report: Summary of Technical Expertise and Qualifications, prepared by Hazleton Laboratories America, Inc., 10/3/90. P. 306162-306259. A cover letter is attached.
129. Report: Enseco Incorporated Quality Assurance Program Plan for Environmental Chemical Monitoring, prepared by Enesco Incorporated, 10/3/90. P. 306260-306374. 130. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA : Fisre , h studies, 10/5/90. P. 306375-306375.
131. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Monthlyre , Progress Report No. 26, 10/10/90. P. 306376-306379.
132. Facsimile sheet to Mr. Randy Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants: re , Phase III RI, 10/11/90. P. 306380-306382. Two site mape attachedar s .
133. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Anthony J. Vellios, Dynamac Corporation, re: Monthly Field Trip Report, 10/23/90. P. 306383-306412. A memorandum and handwritten notes on the field trip are attached.
68 134. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Pat McManus, U.S. EPA, re: Change of laboratories for toxicity analysis, 10/24/90 . 306413-306414P . . 135. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA, re: Wetlands at the Du Pont- Newport Site, 10/29/90 . 306415-306415P . . 136. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. KarMr ml Kalbacher, DNREC: re , Fish tissue analysis, 10/29/90. P. 306416-306416. 137. . RandLetteMr o yt r Sturgeon, U.S .Kar. Mr EPAl d an , Kalbacher, DNREC, fro. CeciMs m l . MancinRogeMr d r an i T. Gresh, Woodward-Clyde Consultants, re: Phase III Wetlands Investigation Fish Sampling Program, 10/31/90. P. 306417-306421. 138. . RandLetteMr yo t r Sturgeon, U.S .. Kar Mr EPA ld an , Kalbacher, DNREC, fro. RogemMr . GreshT r , Woodward- Clyde Consultants : Grounre , d water seepage sampling and MW-33 B(R), 11/8/90. P. 306422-306428. Two ground water seepage charts and a site sketch are attached.
139. Report: Statemen Qualificationf o t d Experiencean s . prepare I EnvironmentaTA y b d l Sciences, Inc., 11/14/90. P. 306429-306485.
140. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progres s, 11/15/90Repor27 . No 306486-306489. tP . .
141. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Anthon Vellios. yJ , Dynamac Corporation : Monthl,re y Field Trip Report, 11/27/90. P. 306490-306505. A letter, handwritten notes d photograph,an e fielth df o s trie attachedar p .
142. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl Kalbacher, DNREC : drafReviee ,re th tf wo Human Health and Environmental Assessment, 1/18/90 . 306506P . - 306506.
143. Report: Final Work Plan, Phas I RemediaII e l Investigation/Feasibility Study. Du Pont-Newport Site, Volum , prepare1 e y Woodward-Clydb d e Consultants, 2/5/91. P. 306507-306591.
69 144. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Phase III soil sampling, 2/7/91. P. 306592-306594. 145. Handwritten attendance list fro Risa m k Assessment workshop, 2/20/91 306595-306595. P . .
146. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , Soil sampling, 2/20/91. P. 306596-306596.
147. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: RI/FS calendar schedule, 2/21/91. P. 306597-306599. The calendar is attached.
148. Memorandu . VictoMr o t mr Guide, U.S. EPA,. W fro. Mr m Wade Talbot, U.S. EPA : Transmittare , e Finath lf o l Report, 3/6/91. P. 306600-306600.
149. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Risk Assessment Workshop, 3/11/91. P. 306601-306609. The following are attached: a) General Intake and Exposure Parameters chart;
b) Soil Ingestion Parameters chart; c) Soil Dermal Parameters chart;
d) Surface Water Parameters chart;
e) handwritten Risk Assessment Workshop attendance list.
150. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JoeMr ml Karmazyn : Wastre , e management plan, 3/12/91. P. 306610-306610.
151. Report: Supplemental Phase III RI Tasks, prepared by E.I u Pon d .Nemoure d t Company& s , Inc., 3/12/91. P. 306611-306804.
70 152. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Anthon . VelliosJ y , Dynamac Corporation : Monthlre , y Field Trip Report, 8/13/91 306805-306818. P . A . letter, handwritten notes, and photographs of the site are attached.
153. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Risre , k Assessment, 3/22/91. P. 306819-306820.
154. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. KarMr ml F. Kalbacher, DNREC, re: Incorporation of the ground water component inte Risth ok Assessment, 3/28. P. 306821-306822.
155. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Roy L. Smith, U.S. EPA, re: Comments on notes on the Risk Assessment Workshop, 4/1/91 . 306823-306823P . .
156. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Soire , l sampling, 4/5/91 . 306824-306825P . .
157. Lette. FranMr ko t r Everson Clad ,Re y Consolidated School District . ,BrandP fro. tMr m Butler, E.Iu d . Pont de Nemours & Company, Inc., re: Contamination status of wells, 4/24/91. P. 306826-306834. Two letters and three residential well sampling charts are attached.
158. Rand. LetteMr o yt r Sturgeon, U.S. EPA, froRoge. mMr r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report No. 33, 5/10/91. P. 306835-306836.
159. Report: Phase III Remedial Investigation Data Sufficiency Report u Pont-NewporD , t Site, Newport. Delaware .. prepare 4 Volum f o y Woodward-Clyd1 eb d e Consultants, 5/17/91. P. 306837-306976. Two cover letters are attached. 160. Report: Phase III Remedial Investigation Data Sufficiency Report u Pont-NewporD , t Site, Newport, Delaware ,prepare, 4 Volum f o y Woodward-Clyd2 eb d e Consultants, 5/17/91 . 306977-307538P . .
71 161. Report: Phas RemediaI II e l Investigation Data Sufficiency Report. Du Font-Newport Site, Newport, Delaware .prepare. 4 Volum f o y Woodward-Clyd3 eb d e Consultants, 5/17/91. P. 307539-307946. 162. Report: Phase III Remedial Investigation Data Sufficiency Report u Pont-NewporD , t Site, Newport, Delaware, Volume 4 of 4, prepared by Woodward-Clyde Consultants, 5/17/91. P. 307947-308151.
163. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl Kalbacher, DNREC, re: Review of the Phase III RI report, 6/18/91 . 308152-308153P . .
164. Excerpt from review of Phase III RI report, 7/2/91. P. 308154-308154.
165. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , Data Sufficient report, 7/12/91 . 308155-308168P . .
166. Letter to Ms. Charlotte Necastro from Mr. P. Brandt Butler, E.I. du Pont de Nemours & Company, Inc., re: Residential well sampling, 7/17/91 . 308169-308177P . . The following are attached:
a) a letter regarding contamination status of wells; b) three residential well sampling charts;
c) field notes for residential wells;
a sitd)e map.
167. Report: Holly Run Plant Soils Complete Analytical Data, prepared by Woodward-Clyde Consultants, 7/17/91. P. 308178-308240 A cove. r lette s attachedi r .
168. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , e submissioRequesth e drafr th fo t tf o nHuma n Health Risk Assessment, 9/6/91 . 308241-308243P . A lette. r is attached.
169. Handwritten attendance list from the River Bank Meeting, (undated) . 308244-308244P . .
72 170. Excerpt from U.S. EPA Federal Register, Proposed Guidelines for Carcinogen Risk Assessment, Request for Comments, 11/23/84. P. 308245-308248. A facsimile transmittal form is attached.
171. Letter to Mr. Christopher J. Corbett, U.S. EPA, from . Joh Mr . LynnM n , E.I u Pon d .e Nemour td Company& s , Inc., re: Response to letter requesting that Du Pont conduc RI/FSe th t , 5/1/87 . 308249-308249P . . 172. Memorandu . ChristopheMr o t m r Corbett, U.S. EPA, from Ms. Diann Sims, U.S. EPA, re: Comments on the Du Pont- Newport Work Plan, 9/3/87 . 308250-308253P . A . memorandum dated May 28, 1987 regarding the proper procedure r collectiofo s metalf o n s samples i s attached.
173. Memorandum to Mr. Chris Corbett, U.S. EPA, from Mr. H. Ronald Preston, U.S. EPA, re: Summarization of comments on the draft RI/FS Work Plan, 12/9/87. P. 308254-308255. 174. Report: Draft Review Comments on Hvdrogeological Report Pont-Newporu D , t Site, prepare y Jacobdb s Engineering Group Inc., 1988 . 308256-308266P . . 175. Report: Wetlands Evaluation Report for the Newport South Site, prepared by Woodward-Clyde Consultants, 1/88 . 308267-308304P . .
176. Memorandum to Mr. Gerry Amador, U.S. EPA, from Mr. Mike Bass, U.S. EPA, re: Comments on the Work Plan, 2/10/88. P. 308205-308307.
177. Ala. LetteDr n o t Palmerr , E.I u Pon. d e Nemour d t & s Company, Inc., from Mr. Gerardo R. Amador, U.S. EPA, re: Resolutions and comments concerning the draft RI/FS Work Plan, 3/88 308308-308317. .P .
178. Memorandum to Ms. Angle Garcia, U.S. EPA, from Mr. Gerardo R. Amador, U.S. EPA, re: Comments on the draft Preliminary Assessment, 3/30/88. P. 308318-308318.
179. . GerardLetteMr o t r. Amador oR , U.S. EPA, fro, mMr A.B. Palmer, E.I Ponu d .Nemoure td Company,& s . Inc., re: Comments addressed in the revised RI/FS Work Plan, 4/8/88 . 308319-308319P . .
73 180. U.S. EPA, Enforcement Branch, Environmental Services Division (ESD) Service Request form, Revised RI/FS Work Plan, 4/18/88 . 308320-308320P . .
181. Drinking Water/Ground Water Protection Branch Document Review form, Revised RI/FS Work Plan, 4/25/88. P. 308321-308321.
182. Memorandum to Mr. Gerry Amador, U.S. EPA, from Mr. Bruce Mulholt, U.S. EPA : Comment re ,e RI/F th Sn o s Work Plan, 4/26/88. P. 308322-308322.
183. Memorandum to Mr. Gerardo R. Amador, U.S. EPA, from Mr. H. Ronald Preston, U.S. EPA, re: Comments on the draft RI/FS Work Plan, 5/5/88 308323-308324. P . .
184. Memorandum to Mr. Mike Bass, U.S. EPA, from Mr. Bill Belanger, U.S. EPA : Presencre , f radioactivito e t a y the site, 5/6/88 308325-308332. P . A repor. t entitled "Radiological Safety Plan for Decontamination of the Pesses Company Metcoa Plant" is attached.
185. RI/FS Schedule, 7/88 through 2/90 . 308332a-308332aP . .
186. Letter to Mr. Gerardo Amador, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc., re: Transmittal of comments on the revised Hydrogeological Report, 6/13/88 . 308333-308377P . . Review commentn o s the sit d reviean e w comment e Hydrogeologicath n o s l Repor attachede ar t .
187. Agend meetina r fo a u PontgD betweed , an 6/14/88A nEP . P. 308378-308382 A lette, r dated Jun , 1988 e 8 regarding review comment e reviseth n o sd RI/FSa , memorandu , m198 25 date 8y Ma dregardin g review comments e drafoth n t Borehol d Surfacan e e Geophysical Report, and handwritten notes regarding site activitiee sar attached.
188. Memorandu Gerard. Mr o mt o Amador, U.S. EPA, fro. mMr Eugene Dennis, U.S. EPA, re: Comments on the RI/FS Work Plan, 6/22/88. P. 308383-308383.
189. Letter to Mr. Paul Fikac, Jacobs Engineering Group Inc., from Mr. Gerardo R. Amador, U.S. EPA, re: Request for review comments on a Chemistry Report, 6/22/88. P. 308384-308384.
74 190. Ala. Lette . Mr PalmerB n o t r , E.I u Pon. d e Nemourd t & s Company, Inc., fro. GerardmMr Amador. R o , U.S. EPA, re: Comments on the revised RI/FS Work Plan and its appendices, 6/24/88. P. 308385-308439. The following are attached:
a) Attachment I, a hand-drawn cross section diagram; b) Attachment II, Selected Transformation Reactions for Halogenated Aliphatic Compounds Found at the Byers Warehouse Site;
c) Attachment III ,memorandua m regardine th g review of a Quality Assurance Project Plan;
d) Attachment IV, Radiological Safety Plan for Decontamination of the Pesses Company Metcoa Site.
191. Agenda for a meeting between EPA and Du Pont, 6/29/88. P. 308440-308442. A schematic diagram and a project flowpath chart are attached.
192. Memorandum to file from Ms. Colleen Leonard Leyden, U.S. EPA Ponu : D Tri, re to pt headquarter n Jun, o s 28 e 1988, 7/1/88. P. 308443-308443.
193. Gerard. LetteMr o Amadorrt . oR , U.S. EPA, fro. mMr Paul J. Fikac, Jacobs Engineering Group Inc., re: a reconnaissanc d an Summar A a visiEP f o o yd Wort t an ek Plan coordinating meeting, 7/6/88 . 308444-308451P . .
194. . GerardLetteMr o t Amadorr. R o , U.S. EPA, fro. mMr Pau . FikacJ l , Jacobs Engineering Group Inc.: ,re Review of the Chemistry Report, 7/19/88. P. 308452- 308460.
195. LetteGerard. Mr o Amadorrt . o R , U.S. EPA, fro. mMr Roge . GreshT r , Woodward-Clyde Consultants : Stature , s of the Remedial Investigation (RI), 8/25/88. P. 308461-308461.
196. . PauLette . FikacMr J l o t r , Jacobs Engineering Group Inc., from Mr. Gerardo R. Amador, U.S. EPA, re: Request for review comments on the revised RI/FS Work Plan, 9/2/88 . 308462-308462P . .
75 197. Gerard. LetteMr o Amador. t rR o , U.S. EPA, fro. mMr Roger T. Gresh, Woodward-Clyde Consultants, re: Change of drilling contractor, 9/7/88. P. 308463-308463.
198. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roge . GreshT r , Woodward-Clyde Consultants : Changre , e of contracted geotechnical laboratory, 9/23/88. P. 308464-308464.
199. Letter to Mr. Gerardo Armador [sic], U.S. EPA, from Mr. Paul Fikac, Jacobs Engineering Group Inc. : Fielre , d oversight repor r activitiesfo t e sitth et a conducte d during the week of September 19, 1988, 9/28/88. P. 308465-308467.
200. Facsimile transmittal sheet to Mr. Gerardo Amador, U.S. EPA, fro. PaumMr l Fikac, Jacobs Engineering Group Inc. : Samplinre , g informatio e siteth ,r fo n10/3/88 . P. 308468-308471. The sampling information is attached.
201. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Progress Report Number 2, 10/4/88. P. 308472-308473.
202. Letter to Mr. Gerardo Amador, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc. : Splire , t sampling information provided during two telephone conversations, 10/4/88. P. 308474-308482. 203. GerardLette. Mr o t ro Amador, U.S. EPA, fro. PaumMr l Fikac, Jacobs Engineering Group Inc., re: Site activity report for the week of September 26, 1988, 10/5/88. P. 308483-308485.
204. Letter to Mr. Gerardo Amador, U.S. EPA, from Mr. Paul Fikac, Jacobs Engineering Group Inc., re: Site activit yweee reporf th Octobeo k r fo t, 1988 3 r , 10/12/88 . 308486-308489P . .
205. . GerardLetteMr o t ro Amador, U.S. EPA, fro. PaumMr l J. Fikac, Jacobs Engineering Group Inc., re: Site activit ye wee reporf th Octobeo k r , fo 1988t 10 r , 10/19/88 308490-308493. P . .
206. Memorandu . GerardMr o t mo Amador, U.S. EPA, fro. Mr m Ronald Preston, U.S. EPA, re: Comments on the RI/FS Work Plan, 10/25/88 . 308494-308494P . .
76 207. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Number 3, 11/3/88. P. 308495- 308497.
208. Letter to Mr. Gerardo Amador, U.S. EPA, from Mr. Paul S. Fikac, Jacobs Engineering Group Inc.: Reviere , f o w the final RI/FS Work Plan, 11/3/88 . 308498-308502P . . 209. Handwritten telephone conversatio. L n . recorMs f o d Brunker, U.S. EPA, with Mr. Paul Fikac, Jacobs Engineering Group : Delaa lettere , f o y r reporn o t Quality Assurance/Quality Control (QA/QC) audit, 12/6/88. P. 308503-308503.
210. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 12/6/884 r . 308504P . - 308505.
211. . GerardLetteMr o t r o Amador, U.S. EPA, fro. PauMr m l J. Fikac, Jacobs Engineering Group Inc. : Summarre , y of split sample coordinatio e grounth r dfo n water sampling program, 12/9/88. P. 308506-308509.
212. Handwritten notes, re: Ion exchange information, 1989. P. 308510-308510.
213. . LetteGerardMr o t rAmador. R o , U.S. EPA, fro. Mr m Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 2/6/896 r . 308511P . - 308512.
214. Recor communicatiof o d Pau. Mr l f no Fikac , Jacobs Engineering Group Inc., with Mr. Gerardo Amador, U.S. EPA, re: Review of RI data, 2/21/89. P. 308513- 308513.
215. Recor f communicatioo d . PauMr l f o nFikac , Jacobs Engineering Group Inc., with Mr. Gerardo Amador, U.S. w samplin , Ra 3/1/89RI : EPAe re g,th . datr fo a P. 308514-308514.
216. . LettePau . Mr FikacJ lo t r , Jacobs Environmental [sic] Group Inc., from Mr. Gerardo R. Amador, U.S. EPA, re: w analyticaRa e RI/Flth datSr fo prograa d resultan m s of split sampling, 3/8/89 . 308515-308516P . .
77 217. . GerardLetteMr o t Amador. rR o , U.S. EPA, fro. Mr m Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Number 7, 3/10/89. .P. 308517- 308518.
218. Letter to Mr. Paul J. Fikac, Jacobs Engineering Group Inc., fro. GerardmMr Amador. R o , U.S. EPA: ,re Quality Assurance/Quality Control (QA/QC) audit on analytical data, 3/15/89. P. 308519-308519.
219. . GerardLetteMr o Amador. t rR o , U.S. EPA, fro. Mr m A.B. Palmer, E.I. du Pont de Nemours & Company, Inc., re: Outline of topics to be covered in a March 29, 1989 meeting, 3/20/89. P. 308520-308520.
220. Letter to Mr. Gerardo Amador, U.S. EPA, from Roger T. Gresh, Woodward-Clyde Consultants : Wetlandre , s Investigation Report, 3/23/89 . 308521-308522P . A . transmittal letter dated Marc , 19823 h 9 regardine th g Wetlands Investigation Report is attached.
221 u Pont-NewporD . t Site Proposed RI/FS Schedule, 3/29/89. P. 308523-308523.
222. Handwritten memorandu. BoornazianL . Ms o t m , U.S. EPA, fro. RandMr m y Sturgeo. GerrMr yd an Amadorn , U.S. EPA, re: Synopsi Marca , 198f o s29 h 9 meeting, 3/29/89. P. 308524-308527.
223. Meeting attendance list, 3/29/89. P. 308528-308528.
224. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 4/10/898 r . 308529P . - 308530.
225. Letter to Mr. Gerardo R. Amador, U.S. EPA, from Mr. Pau . FikacJ l , Jacobs Engineering Group Inc.: ,re Review comments on the RI raw data, 4/12/89. P. 308531-308609 e followinTh . e attachedar g :
w data ra e revie th I ;d R comment an we ) th a n o s
b) twenty-seven Data Summary Forms for Volatiles, Inorganics, BNAS, and Pesticides and PCBs;
c) four Target Compound tables;
78 a crosd) s section location map;
e) a well inventory map;
f) a well inventory table;
g) a Data Management Summary Report for sample points AW01 to AW06;
h) a map of soil boring locations;
i) four soil boring cross section diagrams; a Data ) Managemenj t Summary Repor r samplfo t e points SCSI to SCS6;
k) a sediment sampling station map;
1) three Data Management Summary Reports for sample points RS0 o RS06t 1 , AS0AS06o t 1d an , AS09; crosa s) m section diagra Welf o m l A-A, Zind an c Cadmium Concentrations;
a crosn) s section diagra f Welo m l B-B, Zind an c Cadmium Concentrations; crosa o) s section diagra f Groundwatero m , Shallow Zone, Zind Cadmiuan c m Concentrations;
p) a cross section diagram of Groundwater, Intermediate Zone, Zind Cadmiuan c m Concentrations;
a crosq) s section diagra f Groundwatero m , Deep Zone, Zind Cadmiuan c m Concentrations;
r) a cross section diagram of Groundwater Well E ConcentrationsPC d an A-AE TC , ;
a cross) s section diagra f Groundwateo m r Well B-B, TCE and PCE Concentrations;
a crost) s section diagra f Groundwatero m , Shallo E ConcentrationsPC d w an Zone E TC , ;
79 a crosu) s section diagra f Groundwatero m , Intermediate Zone, TCE and PCE Concentrations;
v) a cross section diagram of Groundwater, Deep Zone, TCE and PCE Concentrations; a crosw) s section diagra f Groundwatero m , Shallow Zone, Barium Concentrations;
a crosx) s section diagra f Groundwatero m , Intermediate Zone, Barium Concentrations;
a crosy) s section diagra f Groundwatero m , Shallow Zone, Zinc Concentrations; a crosz) s section diagra f Groundwatero m , Intermediate Zone, Zinc Concentrations;
aaa cros) s section diagra f Groundwatero m , Shallow Zone, Cadmium Concentrations;
crosa ) s bb section diagra f Groundwatero m , Intermediate Zone, Cadmium Concentrations; cc) a cross section diagram of Groundwater, Shallow Zone, Concentrations Contours;
ddcrosa ) s section diagra f Groundwatero m , Intermediate Zone, Concentrations Contours;
ee) a Site Topography and Test Boring, Test Pit and Well Location Map;
ffa Dat) a Management Summary Repor r samplfo t e points AW0 1AW06o t .
226. Memorandu Gerard. Mr o t mo Amador, U.S. EPA, fro. mMs n PrestonRo Alyc . Mr . Frit T e,d U.San z . EPA: ,re Comment Wetlande th n o s s Investigation, 4/24/89. P. 308608-308612.
227. Ala. Lette . Dr PalmerB n o t r , E.I .u Pon d e Nemourd t & s Company, Inc., fro. GerardMr m Amador. R o , U.S. EPA, re: Suggested agenda for a May 2, 1989 meeting, 4/27/89. P. 308613-208614. The suggested meeting agend s attachedi a .
80 228. Handwritten memorandum from Mr. Mark Noll, re: Comments on ground water and contaminant flow, 5/89. P. 308615-308618.
229. Handwritten notes, re: Data sufficiency review, 5/89. P. 308619-308620. 230. Du Pont-Newport Site, Phase II, Remedial Investigation Summary, 5/89. P. 308621-308632. Seven site maps are attached.
231. Memorandu Gerr. Mr yo m t Aramado r [sic], U.S. EPA, from Mr. Mar . Noll R k: Commentre ,e RI/FS th n o s, Data Sufficiency Memorandum, and a May 2, 1989 meeting, 5/89. P. 308633-308633.
232. Gerard. LetteMr o t Amador. rR o , U.S. EPA, fro. Mr m Roge . GreshT r , Woodward-Clyde Consultants: re , Monthly Progress Report Numbe 5/1/89, 9 r 308634. P . - u Pont-Newpor308636D e Th . t Site Proposed RI/FS Schedule dated Marc , 198 s attached29 hi 9 .
233. Meeting attendance list, 5/2/89. P. 308637-308637.
234. Letter Mr. Gerardo Amador, U.S. EPA, from Mr. Paul J. Fikac, Jacobs Engineering Group Inc. : Finare , l comment e Datth a n o sSufficienc y, MemoranduRI e th r fo m 5/19/89 . 308638-308641P . . Three set f commento s e ar s attached.
235. Handwritten notes, re: Problems with the north and south landfills at the site, 6/89. P. 308642-308642.
236. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Monthlre , y Progress Report Numbe , 6/8/8910 r . 308643-308644P . .
237. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Alyce T. Fritz, U.S. EPA, re: Comments on the Phase III Wetlands Investigation Work Plan, 6/22/89. P. 308645- 308646.
238. Letter to Dr. Alan B. Palmer, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , Comments on the Phase III Wetlands Investigation Work Plan, 6/27/89 . 308647-308648P . .
81 239. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Monthlre , y Progress Report Numbe , 6/29/8911 r . 308649-308650P . .
240. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 8/10/8912 r . 308651-308652P . .
241. Telephone conversation record of Mr. Dean Radebaugh, U.S. EPA, witAnnett. Ms h e Lage, Three Rivers Analytical Lab : Samplin,re g datt receiveno a y EPAb d , 8/11/89 . 308653-308653P . . 242. Letter to Mr. Paul Fikac, Jacobs Engineering Group Inc., fro. GerardMr m Amador. R o , U.S. EPA: re , Various documents prepared by Woodward-Clyde to be reviewe . FikacMr y b ,d 8/14/89 . 308654-308654P . .
243. Letter to DNREC from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation, re: Notification of the abandonment and remova f undergrouno l d storage tanks, 8/15/89. P. 308655-308661. Sampling result e attachedar s .
244. Record of communication of Mr. Gerry Amador, U.S. EPA, with Mr. Randy Sturgeon, U.S. EPA, re: Explanation of why the start of the Community Relations Plan for the sits delayedwa e , 8/30/89 . 308662-308662P . . 245. Telephone conversation record of V. Pizzitola, U.S. EPA, wit. DoriMs h s Longby, Three Rivers Analytical Lab, re: Data sampling concerning Du Pont Site, 9/27/89 . 308663-308663P . .
246. Facsimile cover sheet to Mr. Randy Sturgeon, U.S. EPA, fro. RogemMr r Gresh, Woodward-Clyde Consultants: re , Transmitta f soilo ld watean s r analyses methodologies, 10/20/89. P. 308664-308666. An article entitled "Determination of Radium 228 In Water Samples" and an article entitled "Determination of Gamma Emitting Radioisotopes" are attached.
247. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Number 15, 11/8/89. P. 308667-308668.
82 248. Recor f communicatioo d Rand. Mr yf o nSturgeon , U.S. EPA, with Mr. Al Palmer, E.I. du Pont de Nemours & Company, Inc., re: Request for information concerning the site, 11/28/89. P. 308669-308669.
249. Recor f communicatioo d Rand. Mr yf o nSturgeon , U.S. EPA, wit. StevMr h e Johnson, DNREC : Informatiore , n concerning stormwater discharges, 12/1/89 . 308670P . - 308670.
250. Memorandu . StevMr o et m Johnson, DNREC, fro. MikmMr e Apgar, DNREC, re: Conversation with John DeFrieces concerning CIBA-GEIGY discharges to the Christiana River, 12/1/89 . 308671-308671P . .
251. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: A shipment of photograph e siteth ,f o s 12/12/89 . 308672P . - 308672.
252. Record of communication to file from Mr. Randy Sturgeon, U.S EPA, re: Conference call concerning the Risk Assessment and the Groundwater Sufficiency Data, 12/29/89. P. 308673-308674. Handwritten notes concerning the site are attached.
253. Memorandum to Mr. Bruce Beach, Dynamac Corporation, fro. PeteMr m r Woodman, Dynamac Corporation: re , Comments on the toxicity values presentation given by a representativ Woodward-Clydef o e , 12/29/89 . 308675P . - 308675.
254. Recor f telephono d e conversatio . RandMr f yo n Sturgeon, U.S. EPA, wit. RogeMr h r Gresh, Woodward-Clyde Consultants e Potoma th e are: Wellf th re ,o a c n i s Aquifer, 1/90. P. 308676-308676.
255. Recor f communicatioo d o filt n e fro. RandMr m y Sturgeon, U.S. EPA, re: Discussions on data sufficienc f grouno y d water, 1/12/90 . 308677P . - 308677.
256. Newport Site Meeting Attendance List, 2/5/90. P. 308678-308682. Handwritten meeting notes and Figure 1, Site Plan e attachedar , .
83 257. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Rick Ringenwald, Dynamac Corporation : Transmittare , f o l Pre-Screening Remedial Alternatives Review information, 2/7/90 . 308683-308686P . A lette. r containing information on the Pre-Screening Remedial Alternative Revie s attachedi w .
258. Data Packag r Casfo ee Number 5097C, prepare y Hunteb d r Services Inc., 2/8/90. P. 308687-308778. A cover lette s attachedi r .
259. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Ronald Preston, U.S. EPAe : completeb Wor re ,o t k y b d the contractor, 2/8/90 . 308779-308780P . .
260. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA : e PhasRevie re ,I datth II ef a o w repor d commentan t a discussio n o se th f o n Bioassessment Work Group concerning testing and site activities to be performed, 2/8/90. P. 308781-308782.
261. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dave Seter, U.S. EPA, re: Comments on the drinking water section of the residential well sampling, 2/9/90. P. 308783-308783.
262. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted since Januare scheduleth , 199d 10 yan 0 d activitie r Februaryfo s , 2/12/90 . 308784-308785P . .
263. Report: Proposed Phas GroundwateI II e r Investigation, Du Pont-Newport Site, Newport. Delaware, preparey b d Woodward-Clyde Consultants, 2/14/90. P. 308786-308887.
264e Kilby.Jo . Lette,Mr DNRECo t r , fro. JosepMr m . J h Sasso, -CIBA-GEIGY Corporation, re: NPDES Monitoring Report for January 1990, 2/28/90. P. 308888-308908. The report is attached.
265. Telephone conversation record of Mr. Randy Sturgeon, U.S. EPA, with Mr. Rick Green, DNREC, re: Fish tissue testing, 3/4/90. P. 308909-308909.
266. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted since February 12, 1990 and the scheduled activities for March, 3/6/90. P. 308910-308911.
84 267e Kilby.Jo . Lette, Mr DNRECo t r , fro. JosepMr m . J h Sasso, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for February 1990, 3/27/90. P. 308912-308920. The report is attached.
268. Recor f communicatioo d o filt n e fro. RandmMr y Sturgeon, U.S. EPA, re: Conference call concerning the Phase III Wetlands activities, 4/6/90. P. 308921- 308921.
269. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted since Marce schedule th , 199 7 hd 0an d activitie Aprilr fo s , 4/10/90 . 308922-308924P . .
270. . RandLetteMr o yt r Sturgeon, U.S. EPA, froRoge. Mr m r T. Gresh, Woodward-Clyde Consultants, re: Review comment e datth a n o ssufficienc y response letter, 4/10/90 . 308925-308934P . A propose. d RI/FS schedule is attached.
271. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Willia . SuttonW m , U.S. EPA : Reviere , w commentn o s the Site Assessment Report, 4/19/90. P. 308935-308936.
272. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m William W. Sutton, U.S. EPA, re: Response to a summary of the Site Assessment Report, 4/25/90. P. 308937- 308938.
273. Recor f communicatioo d o filt n e fro. RandmMr y Sturgeon, U.S. EPA : Summarre , a tri f po y report, 4/27/90 . 308939-308939P . .
274. Letter to Mr. Joe Kilby, DNREC, from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Repor Marcr fo t h 1990, 4/27/90. P. 308940-308962. The report is attached.
275. Recor f communicatioo d o filt n e fro . RandmMr y Sturgeon, U.S .u Font' D EPA : s re ,respons n Apria o t le 24, 1990 EPA letter concerning sampling and other site activities, 5/2/90. P. 308963-308963.
85 276m Hill.Ti . ,Lette Mr E.I o u Pont r. d e Nemourd t & s Company, Inc., froRand. mMr y Sturgeon, U.S. EPA: ,re EPA's comments on Component B of the draft Phase III Work Plan, 5/7/90. P. 308964-308968. Comments on the Phase III Wetlands Portion of the draft Work Plan are attached.
277. Recor f communicatioo d o filt n e fro. RandmMr y Sturgeon, U.S. EPA : Drillin,re g procedures, 5/14/90. P. 308969-308969.
278. Memorandum to Mr. Victor Guide, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA, re: A Site Environmental Photographic Interpretation Center (EPIC) study of the site wetlands from pre-1900 to the present, 5/17/90. P. 308970-308975. An EPIC Study, an EPIC Aerial Services Request Form d Figuran , e 6-1, Locationf o s Ground Water Users e attachedar , .
279. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Ray Hinkle . RogeMr , r Gresh . CindMs , y . FullerMs d an , Ceil Mancini, Woodward-Clyde Consultants : Summarre , y of a conference call discussing EPA's comments on modeling, speciation programs d testine an ,b o t g performed, 5/18/90 . 308976-308976P . .
280e KilbyJo . . Lette,Mr DNRECo t r , fro. JosepmMr . J h Sasso, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for April 1990, 5/25/90. P. 308977-308984. The report is attached.
281. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Notificatiore , n a dela f n submittino i y e drafth g t Human Healtd an h Environmental Assessment Reports, 5/29/90. P. 308985- 308986. 282. Telephone conversation record of Mr. Randy Sturgeon, U.S. EPA, with Mr. Roger Gresh, Woodward-Clyde Consultants : Potentiare , l drilling contractors, 6/90. P. 308987-308987.
283. Telephone conversation Rand. recorMr yf o d Sturgeon, U.S. EPA, with Mr. Frank Hannigan, CIBA-GEIGY Corporation, re: Survey of discharge points to the Christiana River, 6/1/90 . 308988-308988P . .
86 284. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Charle . PorterR s , U.S. EPA : Revie,re d an w interpretation of the analytical results of samples from the site, 6/4/90. P. 308989-308993.
285. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Frank L. Hannigan, CIBA-GEIGY Corporation, re: Response to the e drafrevieth tf o wWor k Plan, 6/6/90 . 308994P . - 308994.
286. Memorandu . EugenMr o mt e Meire, U.S. EPA, fro. Mr m Victor Guide, U.S. EPA, re: Request for EPIC support, 6/7/90 . 308995-308995P . . 287. Report: Draft, Human Healt d Environmentaan h l Assessment, Operabl eu Pont-Newpor D Uni , 1 t t Site, Newport, Delaware, prepared by Woodward-Clyde Consultants, 6/8/90. P. 308996-309123. A cover letter is attached.
288. Facsimile cover letter to Mr. Randy Sturgeon, U.S. EPA, fro. BrucmMr e Beach, Dynamac Corporation : Drafre , t outline for sampling and drilling, 6/19/90. P. 309124- 309128. The draft outline is attached.
289 e Kilby.Jo . Lette,Mr DNRECo t r , fro. JohDr . mL n Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for May 1990, 6/28/90. P. 309129-309137. The report is attached.
290 m Hill.Ti . Lette, Mr E.I o t ru Pon .d e Nemour d t & s Company, Inc., fro. RandMr m y Sturgeon, U.S. EPA: re , Information supporting EPA's position that drilling mud should not be introduced to the screened portion of the well, 6/29/90 . 309138-309139P . .
291. Handwritten notes : Samplinre , d welan gl SM-4, 7/90. P. 309140-309140.
292. Meeting attendance list, 7/5/90 309141-309141. P . .
293. Letter to Mr. Tim Hill, E.I. du Pont de Nemours & Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Comment e e drafrevieth th tf n o wo s Huma n Healtd an h Environmental Assessment, 7/6/90. P. 309142-309143.
87 294 e Kilby.Jo Lette. ,Mr DNRECo t r , fro. Joh. Dr mL n Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for June 1990, 7/18/90. P. 309144-309153. The report is attached.
295. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted since June 21, 1990 and the scheduled activities for July, 7/19/90. P. 309154-309155.
296. . FranLetteMr o kt rHannigan , CIBA-GEIGY Corporation, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Proposed drilling procedures and well design for the Potomac Formation wells, 7/19/90. P. 309156- 309156.
297. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Tabulatere , d analytical results from shallow soil sampling conducted at the proposed MW-34 well location, 7/23/90. P. 309157-309158. The soil analyses is attached.
298. Facsimile cover letter to Mr. Randy Sturgeon, U.S. EPA, fro. RogeMr m r Gresh, Woodward-Clyde Consultants: re , MW-34 background well location soil analyses, 7/28/90. P. 309159-309161 A Fil. l Horizon Soil Analyses table and a letter dated July 23, 1990 regarding the MW-34 well locatio e attachedar n .
299. Note r publifo s c meeting : Bariumre , , cadmium, zinc, and lead, 8/90 . 309162-309164.P .
300. Memorandum to Mr. Randy Sturgeon and Ms. Alyce Fritz, U.S. EPA, fro. KevimMr n Novo-Gradac, U.S. EPA: re , Methods for determining amorphous iron oxides, 8/3/90. P. 309165-309174. A facsimile cover sheet and a report entitled "Determination of Sorbed Metals, Amorphic Fe, Oxidic Mn, and Reactive Particulate Organic Carbon in Sediment d Soilsan se attached ar " .
301. Handwritten memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling progress repor r Jun 5 fo througt2 e h Augus, 10 t 1990, 8/10/90 . 309175-309176P . A facsimil. e cover sheet is attached.
88 302. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA, re: Conference call discussing water resources, 8/13/90 . 309177-309177P . .
303. MemoranduAmbroseb Bo . Mr ,o t mU.S . EPA, fro. RandMr m y Sturgeon, U.S. EPA : Sensitivitre , y testinf o g wetlands contamination, 8/15/90. P. 309178-309178.
304. Handwritten memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling progress report for the week ending August 17, 1990, 8/17/90. P. 309179-309180. A facsimile cover sheet is attached.
305. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants : Alternatre , e MW-34 location r shallofo s w soil analyses, 8/17/90. P. 309181-309185 A facsimil. e cover sheeta , preliminary soil analyses sheeta fina d lan , soil analyses sheet are attached.
306. Letter to Mr. Joe Kilby, DNREC, from Mr. John L. Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for July 1990, 8/21/90. P. 309186-309215. The report is attached.
307. Handwritten memorandum to Mr. Randy Sturgeon, U.S. EPA, fro. JameMr m s Buczala, Woodward-Clyde Consultants: re , Drilling progres se wee reporth k r endinfo t g Augus, 24 t 1990, 8/23/90 309216-309217. P . A facsimil. e cover shee s attachedi t .
308. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. KarmMr l F. Kalbacher, DNREC, re: Notification that Mr. Kalbache s assumeha r e positio e th Supportind th f o n g Agency Coordinator, 8/28/90. P. 309218-309218.
309. Handwritten memorandu Rand. Mr yo t mSturgeon , U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling program progress report for week ending August 31, 1990, 8/30/90. P. 309219-309220. A facsimile cover shee s attachedi t .
310. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Additional comments on the draft Human Health and the Environmental Assessment, 9/6/90 . 309221-309222P . .
89 311. Handwritten memorandu . RandMr o yt m Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling program progres sweee reporth k r endinfo t g September 7, 1990, 9/7/90. P. 309223-309224. A facsimile cover sheet is attached.
312. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted during August and the scheduled activities for September, 9/10/90 . 309225-309228P . .
313. Handwritten memorandum to Mr. Randy Sturgeon, U.S. EPA, fro. JamemMr s Buczala, Woodward-Clyde Consultants: re , Drilling program progress report for the week ending September 14, 1990, 9/14/90. P. 309229-309235. The following are attached: a facsimila) e cover sheet; b) a geophysical well log for well TB-29; c) a graph tracking the porosity of well TB-29; a geophysicad) r wellfo l wel g TB-34lo l ; a grape) h trackin e porositth g f welo y l TB-34.
314. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dan Slizys, U.S. EPA, re: Organic Data Validation for Case 14442, 9/18/90 . 309236-309332P . e followinTh . g are attached:
a) the Organic Data Validation for Case 14442;
b) Appendi , GlossarA x f Dato y a Qualifiers;
c) Appendi , DatB x a Summary;
d) Appendix C, Results as Reported by the Laboratory for all Target Compounds;
) e Appendi , RevieweD x d Correctean d d Tentatively Identified Compounds;
f) Appendi , OrganiE x c Regional Data Assessment Summary;
g) Appendi , SupporF x t Documentation.
90 315. Handwritten memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling program progres se wee reporth k r endinfo t g Septembe , 199021 r , 9/21/90 . 309333-309334P . A . facsimile cover shee s attachedi t .
316. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Da. SlizysV n , U.S. EPA : Organire , c Data Validation for Case 14552, 9/24/90. P. 309335-309419. The following are attached:
a) the Organic Data Validation for Case 14552;
b) Appendix A, Glossary of Data Qualifiers;
c) Appendi , DatB x a Summary;
d) Appendi , ResultC x s Reportea se th y b d Laboratory for all Target Compounds;
e) Appendix D, Reviewed and Corrected Tentatively Identified Compounds;
f) Appendi , OrganiE x c Regional Data Assessment Summary;
g) Appendi , SupporF x t Documentation.
317. Report: Draft Scope of Work Not to Be Cited. Supplemental Phas I WetlandII e s Investigation u PontD . - Newport Site, prepare Woodward-Clydy b d e Consultants, 9/25/90 . 309420-309446P . .
318. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dan V. Slizys, U.S. EPA, re: Inorganic Data Validation for Case 14442, 9/26/90. P. 309447-309468. The . following are attached:
e Inorganith a) c Data Validatio r Casfo ne 14442;
b) Table 1A, Summary of Data Qualifiers on Data Summary after Data Validation;
c) Tabl , CodeIB e s use n Qualifieri d s Column;
d) Tabl , Glossar2 e f Dato y a Qualifier Codes;
e) Tabl , Dat3 e a Summary Form;
91 f) Appendi , ResultxA s Reporte y Laboratorb d y Form Inorganics;
g) Appendi O ReportTP , B x .
319. Report: Draft Scope of Work Not To Be Cited, Supplemental Phase III Wetlands Investigation, Du Pont- Newport Site, prepared by Woodward-Clyde Consultants, 9/26/90. P. 309469-309491.
320. Letter to Mr. Joe Kilby, DNREC, from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor Augusr fo t t 1990, 9/27/90. P. 309492-309512 e reporTh . s attachedi t .
321. Data Package, Fish Tissue Analysis, 10/90 . 309513P . - 309515.
322. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Da. SlizysV n , U.S. EPA : Organire , c Data Validation for Case 14604, 10/1/90. P. 309516-309651. The followin e attachedar g : a) the Organic Data Validation for Case 14604; b) Appendix A, Glossary of Data Qualifiers;
c) Appendix B, Data Summary;
d) Appendix C, Results as Reported by the Laboratory for all Target Compounds;
) e Appendi , RevieweD x d Correctean d d Tentatively Identified Compounds;
f) Appendi Organi, E x c Regional Data Assessment Summary;
g) Appendi , SupporF x t Documentation.
323. Handwritten memorandu . RandMr yo t m Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling program progress report for the week ending Octobe , 19905 r , 10/5/90 . 309652-309653P . A . facsimile cover shee s attachedi t .
92 324. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. DaSlizys. nV , U.S. EPA : Inorganire , c Data Validation for Case 14604, 10/9/90 . 309654-309673P . e Th . following are attached: a) the Inorganic Data Validation for Case 14604; b) Table 1A, Summary of Data Qualifiers on Data Summary after Data Validation; c) Tabl , CodeIB e s use Qualifiern i d s Column; d) Tabl , Glossar2 e f Dato y a Qualifier Codes; e) Tabl , Dat3 e a Summary Form;
f) Appendi , ResultA x s Reporte y Laboratorb d y Form Inorganics;
g) Appendi O ReportTP , B x .
325. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dan V. Slizys, U.S. EPA, re: Inorganic Data Validation for Case 14552, 10/9/90 309674-309691. P . e Th . followin e attachedar g : a) the Inorganic Data Validation for Case 14552; b) Table 1A, Summary of Data Qualifiers on Data Summary after Data Validation;
c) Table IB, Codes used in Qualifiers Column;
d) Table 2, Glossary of Data Qualifier Codes;
e) Table 3, Data Summary Form;
f) Appendi , ResultxA s Reporte y Laboratordb y Form Inorganics;
g) Appendix B, TPO Report.
93 326. Memorandum to Ms. Roberta Riccio, U.S. EPA, from Pei-Fung Hurst, U.S. EPA, re: Toxicity of cobalt, 10/9/90 . 309692-309698P . . Informatio e interith n o nm d inhalatioan r cobaloraD fo Rf l s attachedD i tRf n .
327. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, fro. Mr m Ro. SmitL y h U.S. EPA : Comment,re e Risth k n o s Assessment, 10/12/90 . 309699-309700P . . 328. Handwritten memorandu . RandMr o yt m Sturgeon, U.S. EPA, from Mr. James Buczala, Woodward-Clyde Consultants, re: Drilling program progress report for the week ending Octobe , 199012 r , 10/12/90 . 309701-309702P . A . facsimile cover sheet is attached.
329. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. mMs Diane Wehner, Mr. Bob Davis, and Mr. Ron Preston, U.S. EPA, re: Comments on the draft Scope of Work for the Supplemental Phase III Wetlands Investigation, 10/18/90. P. 309703-309705. A letter regarding comments on the draft Scope of Work is attached.
330. Telephon bookg lo e , 10/29/9 1/28/920- 309706. P . - 309786. 331. Letter to Mr. Joe Kilby, DNREC, from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Repor r Septembefo t r 1990, 10/30/90. P. 309787-309809. The report is attached. 332. Revised ground water sampling schedule, 11/14/90. P. 309810-309812. A facsimile cover sheet is attached.
333. Letter to Mr. Joe Kilby, DNREC, from Mr. Joseph J. Sasso, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for October 1990, 11/28/90. P. 309813-309821 e reporTh .s attached i t .
334. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during November and the scheduled activities for December, 12/12/90. P. 309822-309824.
94 335. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dan V. Slizys, U.S. EPA, re: Inorganic Data Validation for Case 15117, 12/18/90. P. 309825-309844. The following are attached: e Inorganith a) c Data Validatio r Casfo ne 15117; b) Tabl , Summar1A e f Dato y a Qualifier n Dato s a Summary after Data Validation; c) Tabl , CodeIB e s use n Qualifieri d s Column; d) Table 2, Glossary of Data Qualifier Codes;
e) Table 3, Data Summary Form;
f) Appendix A, Results Reported by Laboratory Form Inorganics;
g) Appendix B, TPO Report.
336. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Dan V. Slizys, U.S. EPA, re: Organic Data Validation for Case 15117, 12/26/90 . 309845-309914P . e Th . followin e attachedar g :
a) the Organic Data Validation for Case 15117;
b) Appendi , GlossarA x f Dato y a Qualifiers; c) Appendix B, Data Summary;
d) Appendi Result, xC Reportes sa e th y db Laboratory for all Target Compounds;
e) Appendi , RevieweD x d Correctean d d Tentatively Identified Compounds;
f) Appendix E, Organic Regional Data Assessment Summary; g) Appendix F, Support Documentation.
337. Letter to Mr. Joe Kilby, DNREC, from Mr. Mark A. Czerwinski, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for November 1990, 12/27/90. P. 309915-309933. The report is attached.
95 338. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted during December 199 d schedule0an d activities for January 1991, 1/7/91. P. 309934-309936.
339. Rand. LetteMr yo t r Sturgeon, U.S. EPAn ,Jo fro. mMr Cuizon, Dynamac Corporation, re: Dynamac's draft e Environmentarevieth f o w l Evaluation, 1/8/91. P. 309937-309937.
340. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Ms m Diane E. Wehner, U.S. EPA, re: Comments on the Operable Unit 1 Environmental Assessment, 1/17/91. P. 309938-309940 letteA . r dated Januar , 19915 y 1 regardin e Environmentaa revieg th f o w l Assessmens i t attached.
341. MemoranduBlaneyn Be . ,Mr o U.Smt . EPA, fro . PetemMr r Ludzia, U.S. EPA, re: Request for START assistance for "in-situ" stabilization treatment, 1/23/91. P. 309941- 309941. 342. Report: Waste Management Plan, Phas I RemediaII e l Investigation, Du Pont-Newport Site, Revision 0. Newport. Delaware, prepare y Woodward-Clydb d e Consultants, 1/24/91. P. 309942-310044.
343. Joe. LetteMr l o Karmazynt r , E.I Ponu .d Nemoure td & s Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: ,re EPA's comments on the draft Human Health and Environmental Assessment, 1/28/91. P. 310045-310048.
344e KilbyJo . . Lette,Mr DNRECo t r , fro. MarmMr . A k Czerwinski, CIBA-GEIGY Corporation, re: National Pollutant Discharge Elimination System (NPDES) Monitoring Report for December 1990, 1/28/91. P. 310049-310057. The report is attached. 345. Memorandu . PeteMr ro t mLudzia , U.S. EPA, fro. NormMr m Kulujian, U.S .meetinA EPA : ,re g discussing regular assistance to evaluate responsible party technology, 1/29/91. P. 310058-310058.
346. Report: Site Analysis. Du Pont-Newport Site, Newport Delaware. Volume I, prepared by The Bionetics Corporation, 2/91. P. 310059-310108.
96 347. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn u PonD , t Environmental Remediation Services, re: The February 14, 1991 meeting and presentation of Du Font's research and development work, 2/7/91. P. 310109-310110 n envelopA . attacheds i e .
348. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during January 1991 and scheduled activities for February 1991, 2/9/91 . 310111-310114P . .
349. LetteRand. Mr o yrt Sturgeon, U.S. EPA, fro. mMr Michael Buchman, U.S. Departmen f Commerceo t : re , Request for review of the revised draft Preliminary Natural Resource Survey, 2/12/91. P. 310115-310115.
350. Telephone conversation record of Mr. Pete Chapman, U.S. EPA, with Mr. Randy Sturgeon, U.S. EPA, re: Samples exceedin 10-daa g y Chemical Health Advisory, 2/13/91. P. 310116-310117. A map of sampling locations is attached. 351. Seminar Notice Memorandum : Chemicare , l Fate Modeling and measurement of absorption or organics in clay, 2/14/91. P. 310118-310118. 352. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Theres Simpson. aA , U.S. : EPAInorganire , c Data Validatio r Casfo ne 15324, 2/14/91 . 310119-310146P . . The following are attached:
a) the Inorganic Data Validation for Case 15324; b) Table 1A, Summary of Qualifiers on Data Summary After Data Validation;
c) Tabl , CodeIB e s Use Commentn i d s Column;
d) Table 2, Glossary of Data Qualifier Codes; e) Table 3, Samples Exceeding the Health Advisory Levels;
f) Tabl , Dat4 e a Summary Form Inorganics;
97 g) Appendi , ResultA x s Repeate y Laboratorb d y Form Inorganics;
h) Appendix B, TPO Report. 353. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: EPA's comments on the RI/FS Work Plan, 2/19/91. P. 310147- 310147.
354. Memorandu Rand. Mr yo mt Sturgeon , U.S. EPA, fro. mMs Theres . SimpsonA a , U.S. EPA : Organire , c Data Validation for Case 15334, 2/20/91. P. 310148-310292. The following are attached: a) the Organic Data Validation for Case 15334; ) b Appendi Glossar, xA f Dato y a Qualifiers; c) Appendix B, Data Summary Forms;
d) Appendi , ResultC x Reportes a se th y b d Laborator l TargeAl r tfo yCompounds ;
e) Appendix D, Reviewed and Corrected Tentatively Identified Compounds; f) Appendi , OrganiE x c Regional Data Assessment Summary;
) g Appendi , SupporF x t Documentation.
355. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, Du Pont Environmental Remediation Services, re: Project schedule, 2/26/91 . 310293-310294P . .
356. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : EPA1,re s comment e drafth tn o sHuma n Health Environmental Assessmen EPA'd an t s Risk Assessment workshop, 2/27/91 P. 310295-310296.
357. Letter to Mr. Joe Kilby, DNREC, from Dr. John L. Deming, CIBA-GEIGY Corporation, re: NPDES Monitoring Repor Januarr fo t y 1991, 2/28/91 . 310297-310305P . . e reporTh s attachedi t .
98 358. . LetteJoeMr lo t rKarmazyn , E.I .u Pon d Nemoure d t & s Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Lis f referenceo t s requeste e Februarth t a , d199 20 y 2 Ecological Risk Assessment meeting, 3/4/91. P. 310306- 310307 e lis Th f reference.o t s attachedi s .
359. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Activitiere , s conducted during February 199 d schedule1an d activities for March 1991, 3/8/91 310308-310310. P . .
360. . JoeLetteMr lo t Karmazynr , E.I u .Pon d e Nemourd t & s Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Approva a schedul f o l r completiofo e e RI/FSth f ,o n 3/18/91. P. 310311-310313. The schedule is attached.
361. Letter to Mr. Joe Kilby, DNREC, from Dr. John L. Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor r Februarfo t y 1991, 3/25/91. P. 310314-310332 e reporTh .s attached i t .
362. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl F. Kalbacher, DNREC : Issuere , s raise a lette n i d r dated Marc , 19922 h 1 concerning incorporatioe th f o n ground water component into the Human Health Evaluation, 3/28/91 . 310333-310334P . .
363. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted during March 1991 and scheduled activities for April 1991, 4/10/91. P. 310335-310337,
364. Letter to Mr. Joe Kilby, DNREC, from Dr. John L. Deming, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for March 1991, 4/16/91. P. 310338-310346. The report is attached.
365. Report: Physical Characterization of Outfall Pipeline Discharge e Christinth o t s ae Newpor Riveth t a rt Works. Newport. Delaware, prepared by S.T. Hudson Engineers, Inc., 5/19/91. P. 310347-310467.
366. Letter to Mr. Joe Kilby, DNREC, from Mr. Ken Gagon, CIBA-GEIGY Corporation, re: NPDES Monitoring Report for April 1991, 5/28/91. P. 310468-310476. The report is attached.
99 367. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Robert Davis and Mr. Ronald Preston, U.S. EPA, re: Comments on the supplemental Phase III RI tasks, 6/91. P. 310477-310478.
368. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMs Nancy L. Cichowicz, U.S. EPA, re: Review of the Phase III RI Data Sufficiency Report, 6/7/91. P. 310479- 310479.
369. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. David H. Lerner, DNREC, re: Underground storage tank activities, 6/10/91. P. 310480-310483. A DNREC Underground Storage Tank Registration For s attachedi m .
370. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, Du Pont Environmental Remediation Services, re: Proposed inpu e Humatth datr n fo Healta h Evaluation, 6/10/91. P. 310484-310492. Toxicity profiles for cobalt and lead are attached.
371. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted during May 1991 and scheduled activities for June 1991, 6/10/91. P. 310493-310494.
372. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roy L. Smith, U.S. EPA, re: Response to issues raised in a letter dated June 10, 1991 concerning nickel, cobalt, and lead, 6/11/91. P. 310495-310503. A memorandum dated Octobe , 1999 r 0 regardin e toxicitth g y of cobal s attachedi t .
373. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn u PonD , t Environmental Remediation Services, re: EPA's response to the proposed input data for the Human Health Evaluation, 6/17/91. P. 310504-310505.
374. . LetteRandMr o yt r Sturgeon, U.S. EPA, froRoge. mMr r T. Gresh, Woodward-Clyde Consultants, re: A conversation of Mr. Randy Sturgeon, Mr. Joel Karmazyn, Mr. J. Roetzer, and Mr. Roger Gresh concerning the Human Health Evaluation, 6/20/91. P. 310506-310507. 375. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. P. Brandt Butler u PonD , t Environmental Remediation Services, re: Fencing of the north drainage ditch depression, 6/24/91. P. 310508-310508.
100 376. Letter to Mr. Joe Kilby, DNREC, from Mr. D. Kenneth Gagon, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for May 1991, 6/26/91. P. 310509-310517. The report is attached.
377. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl Kalbacher, DNREC : Classificatiore , e Columbith f o n a Formation Aquifer near the site, 6/28/91. P. 310518- 310519. 378. Report: Data Sufficiency Report Review, prepared by Dynamac Corporation, 7/1/91 310520-310554. P . A . cover lette s attachedi r .
379. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Activitiere , s conducted during June 1991 and scheduled activities for July 1991, 7/2/91. P. 310555-310557.
380. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Ms m Dian Wehner. E e , U.S. EPA : e ,PhasReviere I th II ef o w Remedial Investigation Data Sufficiency Report, 7/2/91. P. 310558-310561.
381. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants : Proposere , d cobalt reference dose and proposed lead action levels for use in the Human Health Evaluation, 7/10/91. P. 310562-310566. 382. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: A letter concerning the Phase III Data Sufficiency Report sent by EPA to Woodward-Clyde Consultants but not to Du Pont, 7/12/91 . 310567-310568P . .
383. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Robert Davis, U.S. EPA, re: Additional comments on the I DatR Phas aI II Sufficience y Report, 7/15/91. P. 310569-310570.
384. Memorandu Rand. Mr yo mt Sturgeon , U.S. EPA, fro. mMr Fred Sturniolo, U.S. EPA : ,Classificatiore e th f o n Columbia Formation Aquifer System, 7/16/91 310571. P . - 310572.
101 385. Rand. LetteMr o yt r Sturgeon, U.S. EPA. ,P fro. mMr Brandt Butler u PonD , t Environmental Remediation Services, re: Explanation of why Du Pont will not submi e Remediaa scopt th f worr o e fo kl Treatability Study Assessment, 7/17/91 310573-310574. P . . 386. Memorandu Rand. Mr yo mt Sturgeon , U.S. EPA, fro. mMs Mary Beck, U.S. EPA : ,Analysi re proposee th f o s d low- permeability cover system, 7/22/91 . 310575-310576P . .
387. Letter to Mr. Joe Kilby, DNREC, from Mr. D. Kenneth Gagon, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor r Junfo te 1991, 7/27/91. P. 310577-310585 e reporTh . attacheds ti . 388. Report: Environmental Evaluation Draft Risk Assessment u Pont-NewporD . t Site. Newport, Delaware, Volume 2 of 2, prepared by Woodward-Clyde Consultants, 7/30/91. P. 310586-310779.
389. LetteRand. Mr yo rt Sturgeon, U.S. EPA, fro Roge. mMr r Gresh, Woodward-Clyde Consultants, re: Activities conducted during July 199 d schedule1an d activitier fo s August 1991, 8/9/91. P. 310780-310782.
390. Letter to Mr. Joe Kilby, DNREC, from Mr. D. Kenneth Gagon, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for July 1991, 8/27/91. P. 310783-310791. The report is attached.
391. Memorandum to Mr. Bob Davis, U.S. EPA, from Ms. Diane E. Wehner, U.S. EPA, re: Review of the draft Risk Assessment, 8/29/91. P. 310792-310794.
392. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. P. Brandt Butler, E.I u Pon. d e Nemourd t Company& s , Inc., : Reques re meetina r fo to clarif t g e th y classificatio e Columbith f o n a Aquifer, 9/5/91. P. 310795-310795.
393. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Bob Davis, U.S. EPA : Comment, re drafe th tn so Ris k Assessment, 9/5/91 . 310796-310800P . memoranduA . m dated Augus , 19929 t 1 regarding comment drafe th tn so Risk Assessmen s attachedi t .
102 394. Memorandu . KarMr lo t mKalbacher , DNRECy , Ro fro. mMr W. Miller, DNREC, re: Review of the draft Risk Assessment, 9/6/91. P. 310801-310801. 395. . JoeLetteMr lo t Karmazynr , E.I u Pon d .e Nemour d t & s Company, Inc., froRand. Mr m y Sturgeon, U.S. EPA: re , EPA's e drafrevieth tf o wRis k Assessment, 9/10/91. P. 310802-310804.
396. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during August 1991 and scheduled activities for September 1991, 9/10/91 . 310805-310807P . .
397. Rand. LetteMr yo t rSturgeon , U.S. EPA, froKar. mMr l Kalbacher, DNREC, re: Review of the draft Risk Assessment, 9/11/91 . 310808-310809P . .
398. Meeting Agenda, 9/24/91 . 310810-310812P . A remedia. l process diagra lisa f attendeed to man attachede sar .
399. Meeting Agenda, 9/24/91. P. 310813-310816. A remedial process diagram and charts of the Columbia Formation receptor d Potentiaan s l Area f Intereso s e attachedar t .
400. . RandLetteMr yo t rSturgeon , U.S. EPA, fro. JoemMr l Karmazyn, Du Pont Environmental Remediation Services, e OctobereTh : , 1991 r 1 meeting concerning classificatio e Columbith f o n a Formation Aquifer, 9/27/91 310817-310818. P . .
401. Letter to Mr. Joe Kilby, DNREC, from Mr. D. Kenneth Gagon, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor Augusr fo t t 1991, 9/27/91. P. 310819-310827 e reporTh . s attachedi t . 402. Information on guidance/regulations for a ground water meeting, 10/1/91 . 310828-310836P . . Information o n ground water protection strategy and an excerpt form the Federal Register are attached.
403. Lis attendeef o t s fro grounma d water classification meeting, 10/1/91. P. 310837-310844. The following are attached: a) a draft chart of potential areas of interest;
103 b) a draft chart of Columbia Formation ground water receptors; c) Figure 2, Site Area - 1987; d) Figur , Piezometri26 e c Surface Map, Shallow Zone and Columbia Wells, Fill/Other Quaternary Zone, High Tide - 12/11/90;
e) Figure 24, Groundwater Flow Directions, Shallow Zone and Columbia Wells, Fill/Other Quaternary Zone, High Tid - 12/11/90e ;
f) Figur , Piezometri25 e c Surface, Shallow Zone and Columbia Wells, Fill/Other Quaternary Zone Tidw ,Lo 12/11/90e- ;
) g Figur , Groundwate25 e r Flow Directions, Shallow Zone and Columbia Wells, Fill/Other Quaternary Zone, Low Tide - 12/13/90.
404. Letter to Mr. Peter Ludzia, U.S. EPA, from Mr. P. Brandt Butler, E.I .Ponu d Nemoure td Company& s , Inc., re: Request for EPA to reconsider their position on the classification of the Columbia Aquifer, 10/1/91. P. 310845-310849. Information concerning the classificatio e relevan th a cop f d o y an nt guidance ar e attached.
405. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during September 199 d schedule1an d activities for October 1991, 10/9/91. P. 310850- 310852.
406. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, Du Pont Environmental Remediation Services, re: Minute f Octobeo s , 1991 r 1 meeting concernine th g Columbia Formation Aquifer classification, 10/9/91. P. 301853-310856. A ground water classification flow char attacheds i t . 407. Report: Human Health Evaluation, Draft Risk Assessment u Pont-NewporD , t Site. Newport, Delaware. Volume 1 of 2, prepared by Woodward-Clyde Consultants, 10/14/91. P. 310857-311387. A cover letter is attached.
104 408. . LetteRandMr o yt r Sturgeon, U.S. EPA, froCei. mMs l Mancini and Mr. Roger T. Gresh, Woodward-Clyde Consultants : Responsre , o EPA't e s commente th n o s Ecological Risk Assessment, 10/14/91. P. 311388- 311406 A lette. r dated Septembe , 19925 r 1 regarding endangered species comments and a letter dated October , 19911 1 regardin n inventora g f threateneo y d an d endangered species are attached.
409. Memorandu Rand. Mr yo t mSturgeon , U.S. EPA, fro. Mr m Roy Smith, U.S. EPA, re: Discrepancies in Du Font's minutee Octobeth f , 199o s1 r 1 meeting, 10/28/91. P. 311407-311407.
410Kilbye .Jo Lette. , Mr DNRECo t r , fro. JohDr mn Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for September 1991, 10/28/91. P. 311408-311416 e reporTh . s attachedi t . 411. . LetteRandMr o yt r Sturgeon, U.S. EPA, fro. FranmMr k L. Hannigan, CIBA-GEIGY Corporation : e Copiere ,th f o s Monthly Discharge Monitoring Reports from January 1990 to October 1991, 10/29/91 . 311417-311417P . .
412. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: EPA's rational for its classification of the Columbia Formation Aquifer, 11/1/91. P. 311418-311421. 413. Report: Draft Remedial Investigation Report Fontu D . - Newport Site. Newport. Delaware, Volume 1 of 2, prepared by Woodward-Clyde Consultants, 11/1/91. P. 311422-311590 o transmittaTw . l lettere ar s attached.
414. Report: Draft Remedial Investigation Report. Du Pont- Newport Site. Newport, Delaware., 2 Volum f o 2 e prepare y Woodward-Clydb d e Consultants, 11/1/91. P. 311591-311890.
415. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation, re: Letter report f technicao l review comment e Risth k n o sAssessment , 11/6/91. P. 311891-311899. The report is attached.
105 416. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during October 1991 and scheduled activities for November 1991, 11/8/91. P. 311900-311902. 417. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Nancy L. Cichowicz, U.S. EPA, re: Hydrogeologic review of Appendix D of the draft Risk Assessment, 11/13/91. P. 311903-311904.
418. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl F. Kalbacher, DNREC : e drafReviere ,th f to wRis k Assessment, 11/15/91. P. 311905-311920. A draft report entitled "Guidance on the Use of Models" is attached.
419. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Ro. SmithL y , U.S. EPA : EPA',re s commente th n o s draft Risk Assessment, 11/18/91 . 311921-311923P . .
420. List of attendees, Feasibility Study Meeting, 11/27/91. P. 311924-311924. 421. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation, re: Technical comments on the draft Remedial Investigation Report, 11/27/91 . 311925-311938P . .
422. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., froRand. mMr y Sturgeon, U.S. EPA: ,re EPA's comments on the Human Health Risk Assessment, 12/2/91. P. 311939-311943.
423e Kilby.Jo . Lette,Mr DNRECo t r , fro. JohDr mn Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for October 1991, 12/2/91. P. 311944-311952. The report is attached.
424. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, fro. Mr m Robert S. Davis, U.S. EPA, re: Review of the draft Remedial Investigation Report, 12/5/91. P. 311953- 311955.
425. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Activities conducted during November 1991 and scheduled activities for December 1991, 12/6/91. P. 311956-311957. The repor s attachedi t .
106 426. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Nanc . CichowiczL y , U.S. : EPACommentre ,e th n o s draft Remedial Investigation Report, 12/6/91. P. 311958-311959.
427 . Ronal.H . LetteDr d o Prestont r , U.S. EPA, fro. mMr Joh . WolflinP n , U.S. Departmen e Interiorth f o t: re , Review of the Remedial Investigation Report, 12/9/91. P. 311960-311965 A lette. r dated Septembe , 19910 r 1 regarding comment e drafth e Ristn o sth Volum k f o 2 e Assessment is attached.
428. Memorandu . Joh . SturgeoMr R n o t m n [sic], U.S. EPA, from Robert S. Davis, U.S. EPA, re: Additional comment drafe th tn so Remedia l Investigation Report, 12/11/91. P. 311966-311967.
429. e drafRevieth tf o wRemedia l Investigation Report, prepared by U.S. EPA, 12/12/91. P. 311968-311972.
430. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl F. Kalbacher, DNREC : EPA're , s comment e Humath n o s Health Risk Assessment, 12/13/91 . 311973-312000P . . The following are attached: a) a letter regarding EPA's comments on the Human Health Evaluation Report, dated December 12, 1991;
lettea ) rb regarding DNREC's e revieth f o w draft Risk Assessment, dated November 15, 1991;
f Modelsco ) e Us Guidanc ,e dateth n o ed July 1991;
lettea d) r regarding ground water classification, dated Novembe , 19921 r .
431. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., from Mr. Randy Sturgeon, U.S. EPA, re: Comments on the draft Remedial Investigation, 12/16/91. P. 312001-312004.
432. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Karl F. Kalbacher, DNREC : DNREC're , s comment e drafth tn o s Remedial Investigation Report, 12/18/91 312005. P . - 312007.
107 433. Report: Draft Focused Feasibility Study. Du Pont- Newport Site, Newport, Delaware, prepare Woodwardy b d - Clyde Consultants, 12/23/91 . 312008-312105P . o Tw . cover letter e attachedar s .
434. Letter to Mr. Joe Kilby, DNREC, from Dr. John Deming, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Report for November 1991, 12/26/91. P. 312106-312114 e reporTh . s attachedi t .
435. Report: Draf u Pont-NewporD t t Site Revie Revie- w f o w Ecological Concerns, prepared by Dynamac Corporation, 12/31/91 . 312115-312178P . .
436. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Response to EPA's review comment e drafth tn o sHuma n Health Evaluation, 1/2/92. P. 312179-312181.
437. Memorandum to Mr. Bob Davis, NOAA, from Ms. Diane E. Wehner, NOAA, re: Comments on the draft Feasibility Study, 1/2/92 312182-312184. P . . 438. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Number 41, 1/9/92. P. 312185-312186.
439. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roy Smith, U.S. EPA : ,Comment re e Focuseth n o sd Feasibility Study, 1/10/92. P. 312187-312187.
440. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r . GreshT , Woodward-Clyde Consultants : Responsre , o t e EPA's review comment drafe , 1/13/92th RI tn so . P. 312188-312195. A map of soil boring and well location s attachedi s .
441. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Comments on the site, 1/13/92. P. 312196-312197.
442. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roy Smith, U.S. EPA, re: Comments on the Human Health Evaluatio e addresseb o t n y Woodward-Clydb d e Consultants, 1/14/92. P. 312198-312198.
108 443. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roy Smith, U.S. EPA, re: DNREC's position on aquifer classification, 1/17/92. P. 312199-312199.
444. Letter to Mr. Joe Kilby, DNREC, from Dr. John Deming, CIBA-GEIGY Corporation, re: NPDES Discharge Monitoring Repor r Decembefo t r 1991, 1/21/92 . 312200-312208P . . The report is attached.
445. b MemoranduAmbroseBo . Mr ,o t mU.S . EPA, froRand. Mr m y Sturgeon, U.S. EPA, re: Request for speciation modelin performee b o t g wetlandsn do , 1/22/92. P. 312209-312224 e followinTh . e attachedar g : a) informatio n riveo nd wetlanan r d sediments;
) b informatio norte th hn no disposa l site wetlands;
c) Table 1, Sampling Plan; d) Tabl , Summar2 e f Wetlano y d Investigation Surface Water and Sediment Sample Locations;
e) Tabl Surfac, 3 e e Water Field Parameter Methods; f) Table 4, Field Parameters for Wetland Surface Water Samples;
g) Tabl , Summar5 e f Analyticao y l Resultr fo s Total Metals in Non-Filtered Surface Water, North Disposal Site;
h) Table 6, Summary of Analytical Results for Dissolved Metals in Filtered Surface Water; i) Table 7, Summary of Analytical Results for Total Metal Non-Filteren i s d Surface Water, South Disposal Site;
j) Tabl , Physica8 e l Propertie d Organian s c Contents of Wetland Sediment Samples;
k) Tabl , Chemica9 e l Analyses Summare th f o y Christiana River Sediment;
109 1) Table 10, Chemical Analyses Summary of the North Disposal Site Sediment; m) Table 11, Chemical Analyses Summary of the South Disposal Site Sediment;
n) Table 12, Summary of the Analytical Results for Total Metals in Amorphous Iron Extracts.
446. Telephon g booklo e , 1/29/9 - 10/1/922 . 312225P . - 312293.
447. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. JohmMr n Cuizon, Dynamac Corporation : Ecologicare , l impactt a s the site, 1/29/92. P. 312294-312295.
448. . LetteRandMr o yt r Sturgeon, U.S. EPA, fro. RogeMr m r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 2/5/9242 r . 312296-312298P . .
449. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. KarmMr l Kalbacher, DNREC, re: DNREC's review of the draft Feasibility Study, 2/10/92 . 312299-312302P . .
450. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation, re: Review of the Feasibility Study, 2/10/92 . 312303-312320P . e Th . following are attached:
a) Attachmen Genera, 1 t l Comments;
b) Attachment 2, Specific Comments;
c) Attachmen , Summary3 t ;
d) Attachment 4, a magazine article entitled "Dual vacuum extraction sinks beloe th w surface in groundwater cleanup."
451. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. KarmMr l F. Kalbacher, DNREC, re: A February 4, 1992 meeting betweed DNREan CA nEP concernin g outstanding issues relatee RI/FSth o t ,d 2/10/92 . 312321-312324P . e Th . meeting repor s attachedi t .
110 452. . LetteJoeMr lo t rKarmazyn , E.I u Pon d .Nemoure d t & s Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , Clarificatio f EPA'o n s comment e Humath n o s Health Evaluation e Environmentath , l , EvaluationRI e th d an , 2/11/92 312325-312366. P . e followinTh . e ar g attached:
A comment EP e Remediaath ) n o s l Investigation Report;
A comment e EP Environmentath n ) o sb l Evaluation;
c) EPA comments on the Focused Feasibility Study; d) a graph of barium concentrations;
e) a graph of chromium concentrations;
a grapf )mercurf o h y concentrations;
g) a graph of zinc concentrations;
magazina h) e article entitled "Sediment Quality Triad: Measure f Sedimeno s t Contamination, Toxicity and Infaunal Community Composition in Puget Sound;" magazina i) e article entitled "Dual vacuum extraction sinks belo e surfacth w n i e groundwater cleanup."
453. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc. , from Mr. Randy Sturgeon, U ..S. EPA, re: Transmitta missinf o l g attachment, sFS froe th m 2/13/92 . 312367-312372P . . Five telephone conversation records , 1992 date y f discussion1o Ma d s with residents concerning the use of well water are attached.
454. Facsimile cove r. KevisheeMr o nt t Novo-Gradac, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA, re: Site history, 2/18/92. P. 312373-312373.
Ill 455. Facsimile cover sheet to Mr. Randy Sturgeon, U.S. EPA, fro. KevimMr n Novo-Gradac, U.S. EPA : Draf,re t copy of zinc modeling results, 2/21/92. P. 312374-312380. A memorandum regarding metal speciation modelinu D f o g Pont-Newport datd threan a e unlabeled graphe ar s attached.
456. Report u PonD :t Response o EPA'st s Februar . 19911 y 2 Comments Regardin Humae th g n Health Evaluation (HHE). Environmental Evaluation (EE). RI. and FS Reports. Du Pont-Newport Superfund Site, prepare y Woodward-Clydb d e Consultants, 2/24/92. P. 312381-312400. A letter dated Octobe , 1993 r 1 regardin e schedule th gth r fo e RI/FS is attached. 457. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, Du Pont Environmental Remediation Services, re: Acknowledgemen f receipto EPA'f to s RI/FS comment letter, 2/24/92. P. 312401-312420. A report regarding Du Pont's response o EPA't s s comment s attachedi s .
458. Sign-i nu Pont/DNREC/EP D shee r fo t A Meeting, 2/25/92. P. 312421-312421.
459. Trip Report, prepare Mer. Mr vy b dHarris , 2/28/92. P. 312422-312422.
460. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : Revie,re f o w loading calculations, 2/28/92 . 312423-312427P . . Comments on calculations for the migration of metals to e Christianth a Rive e attachedar r .
461. Handwritten memorandum to Ms. Carol Macbeth from Mr. Mike Urz : Exten,re f bariuo t m quantitiee th n i s Christiana River watershed, 2/29/92. P. 312428-312492. The followin attachede ar g : e sedimenth f o te us qualit e a reporath ) n yo t triad in the classification of sediment contamination;
e revisea reporth n ) o tb d water quality criteria for the protection of aquatic life; a tablc )f wetlan o e d investigatio f surfaco n e wate d sedimenan r t sample locations;
112 d) a summary of aluminum concentrations;
e) information on the constituents of concern; f) information on the contaminants of concern; g) a letter regarding Du Font's receipt of EPA's comments on the RI/FS, dated February 24, 1992;
u Font'D h) s response EPA'o t s s comments regarding the Human Health Evaluation, Environmental Evaluation, Remedial Investigation Feasibilitd ,an y Study;
i) a Proposed Document Submittal and Approval Schedule.
462. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Mark A. Czerwinski, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor Januarr fo t y 1992, 3/3/92. P. 312493-312503. A letter dated February 29, 1992 regarding the Discharge Report and the report are attached.
463. Facsimile cover sheet to Mr. Randy Sturgeon, U.S. EPA, from Ms. C. Macbeth, Dynamac Corporation, re: Background information on Du Pont's use of the sediment quality triad, 3/4/92. P. 312504-312507. A report on the sediment triad analysis is attached. 464. Sign-i nu Pont-Newpor D shee r fo t t meeting: re , Discussion of outstanding ecological issues, 3/5/92. P. 312508-312508.
465. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Rober . DavisS t , U.S u PonD . tEPAA meetin : ,re g regardin sedimene th g t triad, 3/9/92 . 312509P . - 312511 A memorandu. m dated Marc , 19910 h 2 regarding typographical errors on a message and a memorandum dated March 13, 1992 regarding a conference call are attached.
466. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger . GreshT , Woodward-Clyde Consultants : Monthlre , y Progress Report Number 43, 3/9/92. P. 312512-312513.
113 467. Sign-in sheet, EPA - Du Pont Hydrogeology Workshop, 3/10/92 . 312514-312527P . e followinTh . e ar g attached: a) a flow chart of ground water (GW) restoration remedial action objectives;
a flow ) charb f grouno t d water (GW) containment remedial action objectives; floa c)w char Christianf o t a River sediment restoration remedial action objectives; a flod)w char f wetlando t s sediment restoration remedial action objectives;
e) flush time calculations for barium sulfate; lisa f fluso t ) f h time calculations;
g) a hand-drawn diagram illustrating flow; h) a rule sheet;
variabla i) e sheet; a grapj )f fluso h h time;
chara k )f flusto h timd exian et concentrations;
1) a chart of ground water major ion chemistry;
m) a list of conclusions.
468. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. CeimMs l Mancini, Woodward-Clyde Consultants, re: Summary of a Marc , 19912 h 2 telephone conversation concernine th g resolutio sedimene th f no t quality triad, 3/13/92. P. 312528-312529.
469. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Ceil Mancini, Woodward-Clyde Consultants, re: Final resolutio sedimene th f no t quality triad, 3/17/92. P. 312530-312535. A revised table of contents for the Environmental Evaluation is attached.
114 470. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JamemMr s P. Buczala, Woodward-Clyde Consultants, re: Submittal of updated pages of the Human Health Evaluation, 6/11/92 . 312536-312541P . e revisedTh . pagee ar s attached.
471. Report: Final Report Human Health Evaluation, Risk Assessment, Du Font-Newport Site. Newport, Delaware. prepare, 2 Volum f o Woodward-Clydy 1 eb d e Consultants, 3/18/92. P. 312542-313059.
472. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., froRand. mMr y Sturgeon, U.S. EPA: re , EPA's comments on a Woodward-Clyde letter concerning the Environmental Evaluation, 3/19/92 313060. P . - 313061.
473. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: ,re EPA's responses to Du Font's comments on the Human Health Evaluation e Environmentath , l Evaluatione th , RI, and the FS, 3/20/92. P. 313062-313065.
474. . RandLetteMr o yt r Sturgeon, U.S. EPA, froMar. Mr m k A. Czerwinski, CIBA-GEIGY Corporation : NPDEre , S Monthly Discharge Monitoring Repor r Februarfo t y 1992, 3/25/92 . 313066-313075P . A lette. r dated Marc, 27 h 1992 regardin NPDEe th g S Discharge Monitoring Report e reporanth de attached ar t .
475. Memorandub AmbroseBo . Mr ,o t mU.S . EPA, froRand. mMr y Sturgeon, U.S. EPA, re: MINETAQ modeling results of zinc, 4/6/92 . 313076-313076P . .
476. Letter to Ms. Joan Armstrong, U.S. EPA, from Mr. Joseph T. Wutka, Delaware Departmen f Transportationo t : re , Basin Road boring data, 4/6/92. P. 313077-313077.
477. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roy L. Smith, U.S. EPA, re: Second review of the Risk Assessment, 4/8/92. P. 313078-313078.
478. . LetteRandMr o yt r Sturgeon, U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 4/9/9244 r . 313079-313082P . .
115 479. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Killer ,e fina Th DNREC l: Humare , n Health Evaluation Report, 4/14/92 . 313083-313085P . . 480. Rand. LetteMr yo t rSturgeon , U.S. EPA, froAnn. Ms me V. Hiller, DNREC : Notificatiore , e changa th f no f o e DNREC project manager, 4/16/92 . 313086-313086P . .
481. Letter to Mr. Joseph Wutka, Delaware Department of Transportation, fro. JoaMs m n Armstrong, U.S. EPA: re , Request for maps of Basin Road, 4/23/92. P. 313087- 313087.
482. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Roy L. Smith, U.S. EPA, re: Potential risks from residential use of Potomac Formation ground water, 4/27/92 . 313088-313090P . A tabl. f estimateo e d upper bound excess lifetime cancer risks and hazard quotients is attached.
483. Letter to Mr. Joe Kilby, DNREC, from Dr. John Deming, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for March 1992, 4/28/92. P. 313091- 313111. The following are attached:
Discharge th a) e Monitoring Report;
b) sampling results; c) Order Custody Forms for laboratory numbers BD-26455, BD-26462, and BD-26463;
d) Acute Screening Studies Data Sheetr fo s sample numbers BD-26455-6, BD-26462d an , BD-26463-6.
484. . JoeLetteMr l o t Karmazynr , E.I u Pon d .e Nemour d t & s Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: re , Review comment e Humath n o sHealt h Evaluation, 4/28/92. P. 313112-313113.
485. Report: Environmental Evaluation. Risk Assessmentu D . Pont-Newport Site. Newport. Delaware. Volume 2 of 2, prepared by Woodward-Clyde Consultants, 4/29/92. P. 313114-313414.
116 486. Letter to Mr. Wayne Walters, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Proposed remedial approach, 5/4/92. P. 313415-313417. A table of the proposed remedial program is attached.
487. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. JoeMr ml Karmazyn, Du Pont Environmental Remediation Services, : Responsre EPA'o et s comment e finath ln so Huma n Health Assessment, 5/5/92. P. 313418-313420.
488. Letter to Ms. Anne Killer, DNREC, from Mr. Randy Sturgeon, U.S. EPA : EPA're , s respons o DNREC't e s comments on the Human Health Evaluation, 5/6/92. P. 313421-313430 e followinTh . e attachedar g :
a) a memorandum regarding potential risks from residentia f Potomao e us lc Formation ground water, dated Apri , 199227 l ; tabla estimatef eo ) b d upper bound excess lifetime cancer risk d hazaran s d quotients; memorandua c) m regardin e reviseth g d Human Health Evaluation ,, 19926 date y Ma d;
d) two telephone conversation records regarding discussions with residentf o e s us abou e th t well water ,, 1991 2 date y Ma d.
489. Ann. LetteMs e o t Hillerr , DNREC, froRand. Mr m y Sturgeon, U.S. EPA : Requesre , r Statfo t e Applicable or Relevan Appropriatd an t e Requirements (ARARs), 5/6/92 . 313431-313431P . .
490. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Number 45, 5/8/92. P. 313432-313433.
491. Facsimile cover sheet to Mr. Randy Sturgeon, U.S. EPA, fro. CaroMs m l Macbeth, Dynamac CorporationA : re , reference used by Du Pont, 5/11/92. P. 313434-313462. A report on contaminated marine sediments assessment and remediation is attached.
117 492. Facsimile cover sheet to Mr. Roger Gresh, Woodward- Clyde Consultants, from Mr. Randy Sturgeon, U.S. EPA, re: Transmitta f informatioo l e revieweb e o t th n y b d Natural Resource Trustee, 5/14/92. P. 313463-313464. A lis f nameso t , addresses d telephonan , e numbers i s attached.
493. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Jon Cuizon, Dynamac Corporation : Reporre , f findingo t s and conclusions froMarce , th m199 11 h 2 on-site field investigation, 5/22/92 . 313465-313475P . A sit. e visit report, site visit notes, and site photographs are attached.
494. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. AnnmMs e V. Killer, DNREC, re: DNREC's receipt of the Environmental Evaluation, 5/26/92 313476-313476. P . .
495. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Carol Macbeth, Dynamac Corporation, re: Review of the revised Environmental Evaluation, 5/27/92. P. 313477- 313485. Dynamac's review of Du Pont's response to EPA comment revisee th d dsan Environmental Evaluatioe nar attached.
496. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Frank L. Hannigan, CIBA-GEIGY Corporation : Transmittare , l of the April 1992 Monthly Discharge Monitoring Report e amendmenanth d Marco t h 1992 Monthly Discharge Report, 5/28/92. P. 313486-313497. The following are attached:
a lettea) r regardin NPDEe th g S Monthly Discharge Monitoring Repor Marcr fo t h 1992, dated May 28, 1992;
b) the Discharge Report for May 1992; a lettec) r regarding transmitta e NPDEth Sf o l Monthly Discharge Monitoring Report for April 1992, dated May 28, 1992; d) the Discharge Report for April 1992.
497. Report: Focused Feasibility Study u Pont-NewporD . t Site, Newport, Delaware ,, prepare 2 Volum f o y 1 eb d Woodward-Clyde Consultants, 5/28/92 . 313498-313762P . . o coveTw r letter e attachedar s .
118 498. Report: Focused Feasibility Study u Pont-NewporD , t Site, Newport. Delaware, Volume 2 of 2. prepared by Woodward-Clyde Consultants, 5/28/92. P. 313763-314130. 499. Report: Final Remedial Investigation Report. Du Font- Newport Site, Newport, Delaware,. 2 Volum f o 1 e prepared by Woodward-Clyde Consultants, 5/28/92. P. 314131-314364 o coveTw . r letter e attachedar s .
500. Report: Remedial Investigation Report. Du Pont-Newport Site, Newport. Delaware, Volume 2 of 2, prepared by Woodward-Clyde Consultants, 5/28/92. P. 314365-314721.
501. . RandLetteMr o yt r Sturgeon, U.S. EPA, froAnn. mMs e Killer, DNREC, re: List of state ARARs, 6/1/92. P. 314722-314725. The ARARs list is enclosed.
502. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Maryan . NicholsonJ n u PonD , t Environmental Remediation Services, re: Classification .of EPA's comments on the Human Health Evaluation, 6/3/92 . 314726-314726P . .
503. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. AnnmMs e Hiller, DNREC : DNREC're , s commente th n o s Environmental Evaluation Report, 6/5/92 314727. P . - 314730.
504. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 6/9/9246 r . 314731-314732P . . 505. Memorandub DavisBo . ,Mr U.So t m . EPA, fro. EvelyMs m n MacKnight, U.S. EPA, re: EPA's comments on the Risk Assessment, 6/9/92. P. 314733-314733.
506. Rand. LetteMr o yt r Sturgeon, U.S. EPAn , Jo fro. mMr Cuizon, Dynamac Corporation : Dynamac're , s revief wo the revised Environmental Evaluation Risk Assessment, 6/10/92. P. 314734-314751. The comments on the Environmental Evaluation Risk Assessment memorandu,a m dated Jun, 19910 e 2 regarding discharge metalf o s n i s ground water, and an excerpt from the Environmental Evaluation are attached.
507. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. James P. Buczala, Woodward-Clyde Consultants, re: Updated pages for the final Human Health Evaluation, 6/11/92. P. 314752-314756. The updated pages are attached.
119 508. Memorandu Rand. Mr yo t mSturgeon , U.S. EPA, fro. mMr Rober . DavisS t , U.S. EPA : ,Commentre e th n o s Ecological Risk Assessment, 6/11/92. P. 314757-314759.
509. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. AnnmMs e V. Hiller, DNREC : DNREC're , , s RI comment e th n o s 6/15/92. P. 314760-314760. 510. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : Dynamac're , s review of the RI, 6/18/92. P. 314761-314768. A list of inadequately addressed comments and a list of adequately addressed comment e attachedar s .
511. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Frank L. Hannigan, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for May 1992, 6/26/92. P. 314769-314778 e reporTh .s attachedi t . 512. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Nancy Cichowicz, U.S. EPA : Additiona,re l commentn o s e reviseth , 6/29/91f o RI d 2 Volume . 314779d P .an 1 s - 314779.
513. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC, re: Comments on the RI and the FS reports, 6/30/92. P. 314780-314785. A Potentiometric Head Contours diagram is attached.
514. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., froRand. mMr y Sturgeon, U.S. EPA: ,re EPA's comments on the Environmental Evaluation Risk Assessment, 7/1/92. P. 314786-314790.
515. Attachment 1, Evaluation of Responses to EPA Comments of July 1, 1992, prepared by Dynamac Corporation, 7/1/92. P. 314791-314795.
516. Memorandu Rando t m y Sturgeon, U.S. EPA, fro. RonalmMr d G. Wilhelm, U.S. EPA, re: Draft report on speciation modeling, 7/2/92. P. 314796-314817. The speciation modeling repor s attachedi t .
517. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation : Drafre , t letter repor r technicafo t l review comment n reviseo s , FS d 7/2/92 . 314818-314849P . e drafTh . t letter repors i t attached.
120 518. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : Dynamac're , s review of the revised RI, 7/2/92. P. 314850-314869. A list of inadequately addressed comments, a list of adequately addressed comments d threan , e sampling results table e attachedar s . 519. Rand. LetteMr yo t rSturgeon , U.S. EPA, froRoge. Mr m r T. Gresh, Woodward-Clyde Consultants : Monthlre , y Progress Report Number 47, 7/9/92. P. 314870-314872. A Finite Difference Gri s attachedi d .
520. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMr Rober . DavisS t , U.S. , EPAFS : ,e Reviere th f o w 7/9/92. P. 314873-314877. 521. Agenda for a meeting between EPA and DNREC, 7/13/92. P. 314878-314878. 522. MemoranduSmithy Ro . , Mr U.So mt . EPA, froRand. Mr m y Sturgeon, U.S. EPA, re: Calculation measures for one percent of the total risk for contamination at the site, 7/21/92. P. 314879-314880. A memorandum dated July 22, 1991 regarding a route-to-route basis to be use n calculatioi d s attachedi n .
523. Facsimile cover sheet to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne Hiller, DNREC, re: A paper on sediment contamination, 7/22/92 314881-314887. P . papee Th .r is attached.
524. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Roger T. Gresh, Woodward-Clyde Consultants, re: Information discusse telephona n i d e conversatioe th e useb n o i dt n Environmental Evaluation and a request for a one-week extension for submittal of the Environmental Evaluation, 7/23/92. P. 314888-314889.
525. Facsimile transmittal sheet to Mr. Randy Sturgeon, U.S. EPA, from Mr. Glenn Earhart, U.S. Army Corps of Engineers, re: Information on dredged material, 7/28/92. P. 314890-314893.
526. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. JohmMr n P. Burke, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Report for June 1992, 7/28/92. P. 314894-314915. The report is attached.
121 527. Memorandu Rand. Mr yo mt Sturgeon, U.S. EPA, fro. mMr Wayne Walters, U.S. EPA, re: Definition of deed notification and deed restriction, 8/4/92. P. 314916- 314916. 528. Report: Environmental Evaluation, Risk Assessment, Du Pont-Newport Site. Newport. Delaware, Volume 2 of 2, prepared by Woodward-Clyde Consultants, 8/7/92. P. 314917-315309.
529. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. RogemMr r T. Gresh, Woodward-Clyde Consultants, re: Monthly Progress Report Numbe , 8/7/9248 r . 315310-315312P . .
530. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Michael Watson, CIBA-GEIGY Corporation, re: Delivery of reports on slurry wall construction, draw-down well effects, and sewer integrity testing, 8/13/92. P. 315313-315313.
531. Letter to Mr. Larry S. Miller, U.S. EPA, from Mr. Raymon . RichterD d , Delaware Departmenf o t Transportation : Rout re ,1 relocatio 14 e n though Newport, 8/17/92. P. 315314-315315.
532. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : e Reviere ,th f o w revised Ecological Evaluation, 8/26/92 . 315316P . - 315321. A list of inadequately addressed comments and a lis f adequatelo t y addressed comment e attachedar s . 533. Report: Final Remedial Investigation Report, Du Pont- Newport Site. Newport, Delaware. Volume 1 of 2, prepared by Woodward-Clyde Consultants, 8/26/92. P. 315322-315624. The following are attached:
coveo tw ar) letters; b) Attachment 1, Summary of EPA Comments and Responses;
c) a letter regarding EPA's review comments on , datethRI e d Octobe , 19921 r ;
a sitd)e map; e) a letter regarding NOAA's review comments on the RI and the FS, dated September 24, 1992.
122 534. Report: Final Remedial Investigation Report. Du Pont- Newport Site, Newport, Delaware, Volume 2 of 2, prepared by Woodward-Clyde Consultants, 8/26/92. P. 315625-316002.
535. Report: Final Focused Feasibility Study Pontu D , - Newport Site, Newport. Delaware.. 2 Volum f o 1 e prepared by Woodward-Clyde Consultants, 8/27/92. P. 316003-316383. The following are attached:
coveo tw ar) letters;
b) EPA'; s FS comment e th n o s
c) two Fabriform pamphlets; d) a memorandum regarding comments on the FS, dated Octobe , 19927 r ;
e) information on remedial alternatives 1 and 2;
a lettef) r regarding Delaware State ARARs;
g) a list of Delaware State ARARs.
536. Report: Final Focused Feasibility Study, Du Pont- Newport Site, Newport, Delaware, Volume 2 of 2, prepare Woodward-Clydy b d e Consultants, 8/27/92. P. 316384-316770.
537. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. John P. Burke, CIBA-GEIGY Corporation, re: NPDES Monthly Discharge Monitoring Repor r Julfo ty 1992, 8/31/92. P. 316771-316780 e reporTh .attacheds i t .
538. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMr Mark D. Sprenger, U.S. EPA, re: Comments on the Environmental Evaluation, 9/1/92. P. 316781-316782.
539. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert Davis, U.S. EPA : Reviere ,e th f Volumo wf o 2 e Environmental Evaluation Risk Assessment, 9/3/92. P. 316783-316785.
540. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation, re: Review of the FS, 9/3/92. P. 316786-316790. A copy of the letter and the review comments are attached.
123 541. Facsimile transmitta l. RandsheeMr o yt Sturgeon, U.S. EPA, from Mr. Terry McKenna, Dynamac Corporation, re: Barium concentration information, 9/4/92. P. 316791- 316800. A memorandum dated July 23, 1992 regarding a risk based concentrations table e risth ,k based concentrations table, and information on barium are attached.
542. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : e Revie,re th f o w RI, 9/4/92 316801-316804. P . e revieTh . w commente sar attached.
543. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Douglas A. Donor, U.S. EPA, re: Comments on the ARARs section of the draft FS, 9/9/92. P. 316805-316825. The following are attached:
a) U.S. EPA Superfund LDR Guide #5, Determining When Land Disposal Restrictions (LDRse ar ) Applicable to CERCLA Response Actions;
b) U.S. EPA Superfund LDR Guide #5, Determining When Land Disposal Restrictions (LDRse ar ) Relevant and Appropriate to CERCLA Response Actions; memorandua c) m regarding interim guidancn eo non-contiguous sites and on-site management of waste and treatment residue, dated March 27, 1986; d) a memorandum regarding a consultation with e Mosth Regios n o America nV n Site.
544. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. JameMr m s P. Buczala, Woodward-Clyde Consultants : Activitiere , s conducted during August 1992 and the scheduled activities for September 1992, 9/9/92. P. 316826- 316828.
545. Report: Groundwater Model Input/Output Printouts. Final Focused Feasibility Study. Du Pont-Newport Site, Newport, Delaware, prepare y Woodward-Clydb d e Consultants, 9/11/92 . 316829-317314P . A cove. r lette s attachedi r .
124 546. . PeteLetteMr o rt rLudzia , U.S. EPA, from N.V. Raman, DNREC, re: Concerns about the draft Proposed Plan, 9/14/92. P. 317315-317315.
547. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JameMr m s P. Buczala, Woodward-Clyde Consultants : Cosre , t estimates for a ground water control system, 9/15/92. P. 317316-317318, A cost estimate table is attached.
548. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. AnnmMs e V. Hiller, DNREC, re: The granting to Du Pont of a "Covenant Not to Sue" through provision of the Preliminary Natural Resources Survey, 9/17/92. P. 317319-317319.
549. . RandLetteMr o yt r Sturgeon, U.S. EPA, from Ann. V e Hiller, DNREC, re: Additions to the state ARARs, 9/22/92. P. 317320-317321.
550. Memorandu . Joh Mr . Sturgeo R no t m n [sic], U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Review of the FS, 9/24/92 . 317322-317324P . .
551. Letter to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Peter Knight and Mr. Donald A. MacDonald, NOAA, re Review of the final RI/FS, 9/24/92. P. 317325-317335.
552. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation : Dynamac're , s revision of its evaluation of two remedial alternatives, 9/25/92. P. 317336-317345. The revised remedial alternative attachede ar s .
553. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Jon I Parker, Woodward-Clyde Consultants, re: Results of supplementary evaluation of the FS, 9/25/92. P. 317346-317375. Result e evaluatioth f o s e ar n attached.
554. Facsimile transmitta lRand. sheeMr yo t SturgeonS U. , EPA, from Ms. Anne Hiller, DNREC, re: Transmittal of letters concerning DNREC's comments on the Environmental Evaluatio RI/Fe th Sd nan reports , 10/1/92 . 317376-317379P . e letterTh . e attachedar s .
125 555. . JoeLetteMr l o t Karmazynr , E.I u Pon d .e Nemour d t & s Company, Inc., froRand. mMr y Sturgeon, U.S. EPA: re , Approval of the Risk Assessment, RI, and FS, 10/7/92. P. 317380-317426 e followinTh . e attachedar g : a) a memorandum regarding EPA's review comments e Risoth nk Assessment, dated Septembe, 30 r 1992;
n ecotoxicologicaa b) l profil f arsenico e ;
c) informatio n bariumo n ;
memorandua ) d m regarding EPA's review comments on the RI, dated October 1, 1992;
e) a site map;
a lettef) r regarding NOAA's review commentn o s , datethFS e d Septembe , 199224 r ;
memorandua g) m regarding EPA's review comments , dateFS de oth Octoben , 19927 r ; h) information on Remedial Alternative 1;
i) information on Remedial Alternative 2;
a lette ) rj regarding Delaware State ARARs, dated September 18, 1992.
556. Handwritte y SmithRo n. ,Mr not U.So t e . EPA, fro. Mr m Randy Sturgeon, U.S. EPA, re: Request for risks to be calculated using exposure assumptions, (undated). P. 317427-317430 A tabl. f analyticao e l datd an a handwritten calculation notes are attached.
557. Table, Draft Proposed Intake Parameters, (undated). P. 317431-317436 e followinTh . e attachedar g : a) a soil ingestion table; a soic)l dermal table; d) a surface water table; e) a child blood lead levels table; a leaf)d detection levels table.
126 558. Information package, Revie f Chemicao w l Loading Calculations with Comments, prepare y Dynamab d c Corporation, (undated) . 317437-317440P . . Generad an l specific comments are attached. 559. Information package, Mineral n Plantsi s , (undated). P. 317441-317442.
560. Journal article entitle SedimenA " d t Quality Triad: Measure f Sedimeno s t Contamination, Toxicityd an , Infaunal Community Compositio n Pugei n t Sound," Marine Pollution Bulletin, (undated). P. 317443-317453.
561. Table, Phas I RemediaI e l Investigation Summary, (undated). P. 317454-317454. 562. Information package, Attachmen Clarificatio, 1 t f o n Analyses Performed During Phase I and Phase II of Remedial Investigatio u Pont-NewporD e th t a n t Site, prepare Woodward-Clydy db e Consultants, (undated). P. 317455-3J.7462.
563. U.S. Army Engineer Waterways Experiment Station Synthesis, Research Results, Dredged Material Research Program, 4/80. P. 317463-317464.
564. Letter to Mr. Mark Czerwinski, CIBA-GEIGY Corporation, from Ms. Marlene 0. Moore, Artesian Laboratories, Inc., re: Analysis results for sample numbers SS-69 to SS-76, 7/31/91. P. 317465-317466. A site map is attached.
565. Memorandu Agreemenf o m t betwee e Delawarth n e River Basin Commissio U.Se th .d EPAan n , Region III, 10/23/91 . 317467-317476P . o sitTw .e mape ar s attached. 566. Table, U.S RegioA . EP Risk-BaseI II n d Concentrations, . SmithL y ,Ro prepare . 7/23/92Mr y b . d317477P . - 317477.
567. . RandLetteMr o yt r Sturgeon, U.S. EPA, froAnn. Ms me V. Hiller, DNREC, re: Preliminary comments on the draft Proposed Plan, 8/27/92. P. 317478-317481. The comments are attached.
127 568. . JohLette . Mr SturgeoR no t r n [sic], U.S. EPA, from Mr. Pete . KnightT r , NOAA : Commentre ,e draf th tn o s Proposed Plan, 9/17/92. P. 317482-317488. A list of NOAA suggestion r remediafo s l effectiveness monitoring is attached. 569. Facsimile transmittal sheet to Mr. Randy Sturgeon, U.S. EPA, from Ms. Carol Macbeth, Dynamac Corporation, re: Arsenic toxicity information, 9/18/92. P. 317489- 317492. An ecotoxicological profile of arsenic and a lis f referenceo t e attachedar s .
570. Rand. LetteMr yo t rSturgeon , U.S. EPA, froAnn. Ms me V. Hiller, DNREC : Transmittare , f stato l e ARARr fo s the site, 9/18/92 . 317493-317498P . e lisTh f .o t state ARARs is attached.
571. Rand. LetteMr yo t r Sturgeon, U.S. EPA, froAnn. mMs e V. Hiller, DNREC, re: Comments on the draft Proposed Plan, 9/23/92. P. 317499-317505. The comments are attached.
572. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Information gathered through samplin d analysian g s which justifies remediation, 9/24/92. P. 317506-317508.
573. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC : Reviere , w commente th n so Environmental Evaluation Report, 9/28/92 . 317509P . - 317509.
574Rand. Mr . y Sturgeon, U.S. EPA, froAnn. . HillerMs mV e , DNREC, re: Review comments on the Remedial Investigatio e Feasibilitth d an n y Study, 9/28/92. P. 317510-317511.
575. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Jon I, Parker and Mr. James P. Buczala, Woodward-Clyde Consultants, re: Submittal of the post-remediation monitoring program , 9/29/92supplemenFS e th .o t P. 317512-317526. The supplemental monitoring program is attached.
128 576. . LetteJoh . Mr Sturgeo R no t r n [sic], U.S. EPA, from Mr. Pete . KnightT r , NOAA : Commentre ,e reviseth n o sd draft Proposed Plan, 9/30/92 . 317527-317530P . A . list of NOAA suggestions for remedial effectiveness monitorin attacheds i g . 577. Handwritten notes, re: Calculations showing results of zinc contaminated ground water discharging into wetlands, prepare . RandMr y b d Sturgeon, 10/92. P. 317531-317531.
578. Rand. LetteMr yo t rSturgeon , U.S. EPA, froAnn. Ms me V. Hiller, DNREC : Commentre ,e revise th n o sd draft Proposed Plan, 10/2/92. P. 317532-317534. The comment e attachedar s .
579. Telephon bookg lo e , 10/6/9 o 11/10/922t 317535. P . - 317545.
580. Memorandu o filt m e fro. RandMr m y Sturgeon, U.S. EPA, re: Determination of the wetland remediation goals and river sediment clean-up criteria, 10/6/92. P. 317546- 317550.
581. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Robert S. Davis, U.S. EPA, re: Information concerning Du Pont's matri f determinatioo x r remediatiofo n f o n wetlands, 10/7/92. P. 317551-317551.
582. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMr Ro. SmithL y , U.S. EPA : Reviere , d acceptancan w f o e the Human Health Risk Assessment, 10/7/92 . 317552P . - 317552.
583. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Review comments on the FS, 10/9/92 . 317553-317554P . .
584. . LetteJoh Mr . Sturgeo R no t r n [sic], U.S. EPA, from Mr. Peter T. Knight, NOAA, re: Comments on the wetland remediation goals, 10/20/92. P. 317555-327557.
585. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Comments on the draft Proposed Plan, 10/21/92 317558-317559. P . .
129 586. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, fro. mMr Douglas A. Donor, U.S. EPA, re: Review of the Proposed Plar lanfo nd disposal restrictions applicability, 10/22/92 317560-317561. P . .
587. Memorandu o filmt e fro Rand. mMr y Sturgeon, U.S. EPA, re: River and wetland remediation goals, 10/27/92. P. 317562-317577. The following are attached:
a) Figure 1, Estimated Areas Requiring Remediation; b) Figure 2, Site Areas Requiring Sediments Samplin Delineato t g e Area Remediationr fo s ;
c) a memorandum regarding comments on the draft Proposed Plad sedimenan n t clean-up criteria, dated October 21, 1992;
d) a letter regarding NOAA's comments on the wetland remediation goals, dated October 20, 1992;
e) handwritten notes regarding metals concentrations;
o sittw e map ) f s showing metals concentrations.
588. . RandLetteMr yo t r Sturgeon, U.S. EPA, froAnn. Ms m e V. Hiller, DNREC, re: Comments on the revised draft Proposed Plan, 10/28/92. P. 317578-317580. The comment e attachedar s .
589. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, Du Pont Environmental Remediation Services, : Delineatiore e Nortth f ho n Landfill boundary, 10/29/92. P. 317581-317583. A site map is attached.
590. Letter to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Pete . KnightT r , NOAA : Reviere , w commente th n o s draft Proposed Plan, 10/29/92. P. 317584-317586.
591. Handwritten record of telephone conversation of Mr. Randy Sturgeon, U.S. EPA, with Mr. Bob Foley and Mr. n HenneDo , U.S. Departmen e Interiorth f o t: re , Remedial strateg monitoringd an y , 10/29/92 . 317587P . - 317588.
130 592. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Camille Costa, Dynamac Corporation, re: Description of the two supplemental remedial alternatives and cost estimates, 10/30/92. P. 317589-317603. The following are attached:
a) Attachment 1, Alternative 1: Groundwater Monitoring;
b) Table 1, Estimated Capital Costs for Alternativ; 1 e
c) Table 2, Annual Operation and Maintenance Costs;
) d Attachmen Alternativ, 2 t : 2 Eco-samplinge ;
e) Table 1, Pre-remediation Sampling in North Disposal Site Wetlands; f) Table 2, Pre-remediation Sampling in South Disposal Site Wetlands;
g) Tabl , Pre-remediatio3 e n Sampline th n i g Christiana River;
h) Table 4, Cost of Long Term Monitoring in the South Wetland r EventPe s ;
i) Table 5, Cost of Long Term Monitoring in the North Wetland Eventr Pe s ;
j) Table 6, Cost of Long Term Monitoring in the Christiana Rive r EventPe r ;
k) Table 7, Bioavailability Monitoring in the South Wetlands;
) 1 Figur Groundwate, 1 e r Monitoring Network.
131 593. Ann. LetteMs eo t rHiller , DNREC, froRand. mMr y Sturgeon, U.S. EPA : Lonre , g term monitoring alternatives for the north and south wetlands, 10/30/92. P. 317604-317618. The following are attached:
a) Attachment 1, Alternative 1: Groundwater Monitoring;
) b Tabl Estimate, 1 e d Capital Costr fo s Alternative 1;
c) Table 2, Annual Operation and Maintenance Costs;
d) Attachmen Alternativ, 2 t : Eco-sampling2 e ; e) Table 1, Pre-remediation Sampling in North Disposal Site Wetlands;
f) Table 2, Pre-remediation Sampling in South Disposal Site Wetlands;
g) Table 3, Pre-remediation Sampling in the Christiana River; h) Table 4, Cost of Long Term Monitoring in the South Wetlands Per Event;
i) Table 5, Cost of Long Term Monitoring in the North Wetland r EventPe s ;
j) Tabl Cos, 6 ef Lon o t g Term Monitorine th n i g Christiana Rive r EventPe r ; k) Tabl , Bioavailabilit7 e y Monitorine th n i g South Wetlands;
1) Figure 1, Groundwater Monitoring Network.
594. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Mr m Roy Smith, U.S. EPA, re: Policy on lead clean-up levels, 11/4/92. P. 317619-317619.
132 595. Letter to Mr. Abraham Ferdis [sic], U.S. EPA, from Mr. N.V. Raman, DNREC, re: Concerns about the Proposed Plan, sediment cleanup criteria d grounan , d wated an r ecological monitoring for the site, 11/5/92. P. 317620-317622.
596. Comments on the draft Proposed Plan, prepared by Ms. Nanci Cickowiz, (undated) . 317623-317624P . . 597. Facsimile transmittal shee o Satyt a fro. RandmMr y Sturgeon, U.S. EPA, (undated). P. 317625-317631. The following are attached:
) a Figur , Sit2 e e Areas Requiring Sediments Sampling to Delineate Areas for Remediation;
b) information concernin monitorina g g plan;
) c information concerning NOAA commenta n o s monitoring program;
d) handwritten notes regarding a proposed ground water monitoring plan.
598. Facsimile transmitta l. RandsheeMr o yt t Sturgeon, U.S. EPA n Cuizon, Jo fro. ,Mr m Dynamac Corporation: re , Soils information to be reviewed, (undated). P. 317632-317640. Eight pages from a dictionary of technical terminology are attached.
599. Proposed Remedial Action Plan, Du Pont-Newport Superfund Site w Castl,Ne e County, Delaware, prepared by U.S. EPA, 11/92 . 317641-317695P . . 600. Report: Process Sewer System Integrity Testing. prepared by Groundwater Technology, Inc., 8/10/92. P. 317696-317775 transmittaA . l lette attacheds i r .
601. Report: Preliminary Evaluation, Potential Impactf o s Remedial Construction. Newport Superfund Site, Newport, Delaware, prepare y Dameb d Moore& s , 8/26/92. P. 317776-317795. Handwritten notes regarding constructio e attachedar n . 602. Report: Process Sewer System Manhole and Sump Repair, Project 2777002, (no author cited), (undated). P. 317796-317810.
133 603. Report: Dredged Material Research Program Analysin ,A s of the Functional Capabilities and Performance of Silt Curtains, prepared by JBF Scientific Corporation, 7/78. P. 317811-318008. 604. Report: New Bedford Harbor Superfund Project, Acushnet River Estuarv Engineering Feasibility Stud f Dredgino y g and Dredged Material Disposal Alternatives, Report 10, Evaluation of Dredging and Dredging Control Technologies, prepared by U.S. Department of the Army, 11/88 318009-318063. P . . 605. Report: Evaluation of Dredged Material Disposal Alternative r U.Sfo s . Navv Homepor t Everetta t , Washington, prepared by U.S. Department of the Army, 1/89. 318064-318422P . .
606. Memorandu o recort m d fro. Pau mMr . Zappi lA : re , Summary of information gathered about sediment barriers, 4/27/92. P. 318423-328428.
607. Report: Contrac b PrograLa t m Data Packagu PonD tr fo e Environ Remediation 5v, Inorganics Data Package. Christiana River Tidal Sampling Grab Water Samples Collected on 12/15/92. 12/17/92 by JC. SN. DB, LLI Sampl 1907079-1907095. eNo . 1908335-1908340. prepared by Lancaster Laboratories, Inc., 12/15/92 . 318429P . - 318814.
608. Report: Contract Lab Program Data Package for Du Pont Environmental Remediation Services, Inorganics Data Package. Christiana River Tidal Sampling Grab Water Samples Collected on 12/17/92, 12/18/92 by SN/DB, LLI Sample No. 1908350-1908359. 1908981-1908993. prepared by Lancaster Laboratories, Inc., 12/17/92. P. 318815- 319120. 609. Report: Tier 1 Data Package, Analytical Data Report fou PonD r t Environ Remediatio , ChristianSv n a River Tidal Sampling Grab Water Samples Collected on 12/22/92 by SN/DB, LLI Sample No. 1910347-1910349, prepared by Lancaster Laboratories, Inc., 12/22/92. P. 319121- 319210.
134 610. Report: Contrac b ProgratLa m Data PackagPonu D tr fo e Environmental Remediation Sv, Inorganics Data Package, Christiana River Tidal Sampling Grab Water Samples Collected on 12/22/92, 12/29/92 bv SN/DB/BC, LLI Sample No. 1908355, 1910242-1910248, 1910328-1910333. 1911821- 1911828, prepared by Lancaster Laboratories, Inc., 12/22/92 . 319211-319553P , . 611. Report: Contract Lab Program Data Package for Du Pont Environmental Remediatio . InorganicnSv s Data Package. Christiana River Tidal Sampling Grab Water Samples Collected on 12/29/92, 12/30/92 by BC. LLI Sample No. 1911840-1911847, 1912267-1912280. prepared by Lancaster Laboratories, Inc., 12/29/92. P. 319554-319949. 612. Report: Contract Lab Program Data Package for Du Pont Environ Remediatio . InorganicSv n s Data Package, Christiana River Tidal Sampling Grab Water Samples I SamplCollecteLL . 1912311, eNo JP , n 1/6/9o dDB - y 3b 1912312, 1914118-1914134, prepared by Lancaster Laboratories, Inc., 1/6/93. P. 319950-320317.
613. Rand. LetteMr yo t rSturgeon , U.S. EPAn , Do fro. mMr Henne, U.S. Department of the Interior, re: Review comment Proposee th n so d Plan, 1/26/93 . 320318P . - 320319.
614. Rand. LetteMr yo t rSturgeon , U.S. EPAe , Jo fro. mMr Deming, CIBA-GEIGY Corporation, re: Comments on the Proposed Plan, 1/28/93. P. 320320-320322. A Federal Express receipt is attached.
615. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Mark A. McNulty, Delaware Departmen f Transportationo t : re , Comments on a November 10, 1992 letter and a December 2, 1992 Public Hearing, 1/19/93 . 320323-320324P . . 616. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Jan Estep, Active Crane Rentals, Inc., re: The potential effec Activn o t e Crane Rentals, Inc.'s business from the closing of South James Street , 1/26/93. P. 320325-320325.
617. Letter to Mr. J. Mervyn Harris, U.S. EPA, from Mr. Bernar . DworskyL d , Water Resourcesw AgencNe r fo y Castle County, re: Comments on the Proposed Plan, 12/2/92. P. 320326-320329. A site map and a Federal Express receip e attachedar t .
135 618. Letter to Mr. Randy Sturgeon, U.S. EPA, fromMayor Paul F. Calistro, Jr., Commissioner Donald H. Mulrine, Jr., and Mr. Mark D'Onofrio, Town of Newport, re: Comments e Proposeoth n d Plan, 1/27/93 . 320330-320331P . . 619. Report: Du Pont Comments. Proposed Remedial Action Plan (PRAP), Du Pont Newport Superfund Site, Newport, Delaware, prepare y E.Ib d u Pon. d Nemoure d t & s Company, Inc., 1/27/93 . 320332-320459P . A cove. r letter is attached. (Index entries 603, 615, 617, 620, and 621 are referenced in this report by E.I. du Pont de Nemour Company& s , Inc.)
620. Information sheet : Solidification/stabilizatiore , n technologies, leachate protocol, and capping of contaminated sediments, 2/2/93. P. 320460-320465. An article entitled "Silt Curtain Deploymend an t Effectiveness s attachedi " .
621. Report: Site Visit Trip Repor RI/Fr fo t S Oversighd an t Split Sampling of the Christiana River Sampling Event, u Pont-NewporD e , 199th 22 Decembet 2a d an t 7 Site1 r . Newport. Delaware, prepare y Dynamab d c Corporation, 2/8/93 . 320466-320493P . .
622. Report: Summar f Dato y a Presentation, Christiana River Water Quality Investigation. Du Pont-Newport. Superfund Site, Newport, Delaware, prepared by Woodward-Clyde Consultants, 2/12/93 . 320494-320655P . A cove. r lettea Federa d an r l Express receip e attachedar t .
623. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. P. Brandt Butler, E.I u Pon .d Nemoure d t Company& s , Inc., re: Follow-up comments on a March 3, 1993 meeting about site impac n zino t c water quality, 3/12/93. P. 320656-320667 e followinTh . e attachedar g :
e commentsth a) ;
b) Figure 1, Sampling Stations;
c) a memorandum regarding loading calculations, dated Marc , 199311 h ;
d) project note n zino s c loading froe Whitth m e Clay Creek, dated Marc , 199311 h ;
136 e) project notes on zinc loading from the Red Clay Creek, dated March 11, 1993. 624. . RandLetteMr o yt r Sturgeon, U.S. EPA,. P fro. mMr Brandt Butler, E.I u Pon d .Nemoure d t Company& s , Inc., re: Corrections and additions to the comments on a Marc , 1993 h 3 meeting about site impac n zino t c water quality, 3/29/93 . 320668-320685P . . Figur, 1 e Sediment Stations repora d ,an t entitled "1988 Delaware Water Quality Inventory, Volume II, Basin Analysis" are attached.
625. Report: Silt Curtain o Controt s l Sediment Movemenn o t Construction Sites, prepare y Ontarib d o Ministrf o y Transportation, (undated). P. 320686-320721. 626. Report: Solidification/Stabilization Technology for Reducin Mobilite th g f Heavo y y Metal n Pollutei s d Sediments, prepared by U.S. Department of the Army, (undated) . 320722-320735P . .
627. Excerpt from Federal Register, pages 52061-52063, Volum Numbe, 46 e r 205, 10/23/81 . 320736-320738P . .
628. Table, Christiana River Sediment, Concentrations of Detected Parameters u Pont-NewporD , t Site, preparey b d Woodward-Clyde Consultants, 6/87. P. 320739-320741. 629. Report: Inferences Mechanisms in Waste Stabilization/ Solidification Processes, prepared by U.S. Army Engineer Waterways Experiment Station, 1/90. P. 320742-320863.
630. Lette. RandMr o yt r Sturgeon, U.S. EPA, fro. Mr m Anthony J. Vellios, Dynamac Corporation, re: Review of the final Work Plan, 3/13/91 . 320864-320865P . .
631. Journal article entitled "Predictin Acute th g e Toxicity of Coppe n Freshwatei r r Sediments: Evaluatioe th f o n Rol f Acid-Volatilo e e Sulfide," Environmental Toxicolog Chemistryd an y , 3/31/92 . 320866-320871P . .
632. Excerpt from Federal Register, pages 13389-13392, Volum , Numbe57 e, 4/16/92 74 r . 320872-320875P . .
137 633. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., fro. RandmMr y Sturgeon, U.S. EPA: ,re Review comment e Feasibilitth n o s e y th Stud d an y Remedial Investigation, 7/24/92 . 320876-320919P . . The following are attached:
a) Table 11, ARARs and To Be Considered Material (TCBs); b) Exhibit 1-2, Selected Location-Specific Potential ARARs;
c) Exhibit 1-3, Selected Action-Specific Potential ARARs;
d) Superfund Guid , Determinin#5 e g when Land Disposal Restrictions (LDRs Applicable )ar e to CERCLA Response Actions. 634. Report: Proceedings, Tiered Testing Issues for Freshwater and Marine Sediments, prepared by U.S. EPA, 9/16/9 o 9/18/92t 2 . 320920-320936P . .
635. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Comments on the Feasibility Study, 10/9/92. P. 320937-320938.
636. Memorandu . SturgeonR . Mr o t m, U.S. EPAy ,Ro fro. Mr m Smith, U.S. EPA : ,Leare d clean-up levels, 11/4/92. P. 320939-320939.
637. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, Inc., re: A 45-day extension to the public comment period for the Proposed Plan, 11/20/92. P. 320940-320940. 638. Sign-in sheet fro meetina m g regardin e Proposeth g d Plan, 12/9/92 320941-320941. P . .
639. Memorandum to Mr. Don Clay, U.S. EPA, from Mr. Bruce Diamond, U.S. EPA, re: Remedy cost detailed in the Proposed Plan, 12/11/92. P. 320942-320942.
640. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, fro. RobermMr . DavisS t , U.S. EPA, Commente th n so draft ROD, 1/11/93. P. 320943-320943.
138 641. . LetteJoh . Mr SturgeoR no t r n [sic], U.S. EPA, from Mr. Pete . KnightT r , NOAA : Comment re ,e draf th tn o s Recor f Decisioo d n (ROD), 1/11/93 . 320944-320945P . .
642. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Peter M. Stokley, U.S. EPA, re: Review comments on the draft ROD, 1/15/93 320946-320947. P . .
643. Rand. LetteMr yo t rSturgeon , U.S. EPAn , Do fro. mMr Henne, U.S. DOI, re: Comments on the draft ROD, 1/15/93 . 320948-320950P . .
644. Memorandu . PeteMr ro t mLudzia , U.S. EPA, fro. mMr Joseph W. Kunz, U.S. EPA, re: Review of the draft ROD, 1/15/93 . 320951-320952P . .
645. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Bill Foster, U.S. EPA : Commentre ,e draf th tn o s ROD, 1/15/93 . 320953-320954P . .
646. Lette Concery WhoMa o t rt I mn from E.I .u Pond e td Nemour Company& s , Inc. : Requesre , r fo t acknowledgement of receipt of six copies of E.I. du Pont de Nemours & Company, Inc.'s comments on the Proposed Plan, 1/27/93. P. 320955-320955.
647. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Cynthia E. Caporale, U.S. EPA, re: Inorganic Data Validatio r Casfo ne 19277, 2/2/93 . 320956-321017P . . The following are attached:
e Inorganith a) c Data Validatio r Casfo ne 19277;
b) Table 1A, Summary of Qualifiers on Data Summary after Data Validation;
c) Tabl Code, IB e s Use n Commenti d s Column; d) Table 2, Glossary of Data Qualifier Codes; ) e Tabl Dat, e3 a Summary Forms;
139 f) Table 4, Summary of Field Duplicate Outliers;
g) Appendix A, Results Reported by Laboratory Form Inorganics;
h) Appendi O ReportTP , B x ;
i) Appendi , SupporC x t Documentation. 648. LetteRand. Mr yo r t Sturgeon, U.S. EPA, fro. JamemMr s P. Buczala and Mr. Peter R. Jacobson, Woodward-Clyde Consultants, re: Additional copies of and corrections to E.I. du Pont de Nemours & Company, Inc.'s comments e Proposeoth n d Plan, 2/2/93 . 321018-321022P . .
649. Lette f transmittao r . RandMr o yt l Sturgeon, U.S. EPA, from Mr. James P. Buzlala, Woodward-Clyde Consultants, re: Paper abstracts concerning contaminated sediments, 2/8/93 . 321023-321024P . . Three abstracte ar s attached.
650. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Elisabeth Freed, U.S. EPA, re: Review comments on the draft ROD, 2/10/93. P. 321025-321029.
651. Letter to Mr. John R. Sturgeon [sic], from Mr. Peter T. Knight, NOAA, re: Review comments on E.I. du Pont de Nemour Company& s , Inc.'s comment e Proposeth n o s d Plan, 2/12/93 . 321030-321034P . .
652. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation : Dynamac're , s revised comments on E.I. du Pont de Nemours & Company, Inc.'s response to the Proposed Plan, 2/26/93. P. 321035-321062 e followinTh . attachede gar :
a) Attachment 1, Christiana River Flow Rates, December 1992 and Historical Data;
) b Attachmen Availabl, 2 t e Surface Water Data froChristiane th m a River; c) Attachment 3, Sediment Remediation Data;
d) Attachment 4, List of Solidification Case Studies.
140 653. Memorandum to Ms. Joan Colson, U.S, EPA, from Mr. Randy Sturgeon, U.S. EPA : ,Requesre r hel fo n answerinti p g questions about stabilizatio e soutth hf o n landfill, 2/26/93. P. 321063-321089. Excerpts from the draft e attachedar D RO . 654. Report: State of Delaware Surface Water Quality Standards, prepared by DNREC, 2/26/93. P. 321090- 321167.
655. EPA and E.I. du Pont de Nemours & Company, Inc. post Proposed Plan meeting information package, 3/3/93. P. 321168-321177.
656. Memorandum to Ms. Joan Colson, U.S. EPA, from Mr. Carlto . WilesC n , U.S. EPA : Reviere , w commentn o s portions of the proposed remedy, 3/10/93. P. 321178- 321179.
657. Sign-in sheet from a sediment clean-up criteria meeting, 3/11/93. P. 321180-321187. The following are attached:
goaa d activita)an l y summary; b) a facsimile transmittal sheet addressed to Mr. Mark Springer, regarding directions to the DNREC offices; c) a facsimile transmittal sheet addressed to . MiriaMs m Lynam; facsimila d) e transmittal sheet addresseo t d Mr. Rich Green;
facsimila e) e transmittal sheet addresseo t d Mr. Dave Cortes [sic]; f) a facsimile transmittal sheet addressed to Ann. Ms e Miller [sic];
g) a facsimile transmittal sheet addressed to b FoleyBo . .Mr
658. Letter to Mr. Mike Giuanna [sic], U.S. EPA, from Mr. Karl Kalbacher, DNREC, re: Request for the NVF-Yorklyn e evaluateb Sit o t e d under Federal Superfun a Sit r efo d Inspection, 3/12/93. P. 321188-321188.
141 659. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation, re: Revisions to the performance schedule, 4/93. P. 321189-321205. The revisions are attached.
660. Facsimile transmittal . RandsheeMr o yt Sturgeon, U.S. EPA, fro. StevmMr e Sottung, Dynamac Corporation: re , The evaluation of the Dredged Material Proposed for Ocean Disposal report, 4/13/93. P. 321206-321212. An excerpt from the Dredged Material Testing Manual and information on the insects Hyalella azteca and Chironomus tentan e attachedar s .
661. Letter to Mr. John Austin, U.S. Nuclear Regulatory Commission, fro. RandmMr y Sturgeon, U.S. A EPA : re , request for a position about the disposition of thorium fronorte mth h landfill, 4/13/93 321213-321233. P . A . a repor d an t sit p entitleema d "Repor f Analysiso t e ar " attached. (Excerpts from the draft ROD were attached to the original letter.) 662. Memorandu o filt m e fro. RandmMr y Sturgeon, U.S. EPA, re: Determination of the wetland and river sediment clean-up criteria, 4/29/93 . 321234-321265P . e Th . followin attachede ar g :
a) Table 1, Major Reasons why Stations Require Remediation; ) b Figur , Sedimen1 e t Characteristics; c) Figure 2, River Sampling Data; a letted) r regarding performance standardr fo s sediment toxicity tests, dated Apri, 29 l 1993;
a lettee) r regarding wetland remediation goals, dated October 20, 1992; grapa f )normalizef ho d lead concentrationr fo s stations requiring and not requiring remediation; a grapg )f normalize o h d cadmium concentrations for stations requiring and not requiring remediation;
142 h) a graph of normalized copper concentrations for stations requiring and not requiring remediation;
grapa i )normalizef ho d mercury concentrations for stations requiring and not requiring remediation; grapa j )f normalize o h d zinc concentrationr fo s stations requiring and not requiring remediation.
663. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Patricia M. Erickson, U.S. EPA, re: Solidification/ stabilization of mixed metals, 4/29/93. P. 321266- 321290 A dat. a base print-ou f dato t a from laboratory treatability studies for solidification/stabilization is attached.
664. Facsimile transmittal sheet to Mr. Randy Sturgeon, U.S. EPA, from Mr. Michael Weber, U.S. Nuclear Regulatory Commission, re: Deed restriction used for a thorium waste disposal sit Michigann i e , 5/4/93 . 321291P . - 321294 e DeclaratioTh . f Restrictivo n e Covenants i s attached.
665. Routin d transmittaan g . lDavi Mr sli o dt p Cortes [sic], DNREC, fro. RandMr m y Sturgeon, U.S.e Th EPA : ,re draft Coastal Zone Management Act Consistency Determination, 5/6/93. P. 321295-321295. A partial letter can be seen behind the slip.
666. . JohLette Mr . Sturgeo R no t r n [sic], U.S. EPA, from Mr. Robert Foley, U.S. DOI, re: Comments on the wetland remediation goals, 5/12/93. P. 321296-321297.
667. DNREC, U.S. EPA, and E.I. du Pont de Nemours & Company, Inc. meeting information package, 5/19/93. P. 321298- 321311. 668. Journal article entitled "Modeling Cadmium Fatt a e Superfund Site: Impac f Bioturbation,o t " Journaf o l Environmental Engineering, 6/93 . 321312-321322.P .
669. Table 3.5, Analysis of Lagoon Wastes as Received and After Stabilization Usin Lawrenc. St g e CKD, 6/4/93. P. 321323-321325. Handwritten notes regarding solidification of wastes are attached.
143 670. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. John H. Austin, U.S. Nuclear Regulatory Commission, re: Position abou e dispositioth t f thoriumo n , 6/9/93. P. 321326-321344. Enclosur , Declaratio1 e f no Restrictive Covenants; Enclosure 2, Memorandum of Understanding d Enclosuran ; , Suggeste3 e d Revisiono t s the Draft Record of Decision, are attached.
671. Facsimile transmittal sheet to Mr. Randy Sturgeon, U.S. EPA, from Mr. Don MacDonald, NOAA, re: Electronic version f graphso s , 6/29/93 . 321345-321346P . A . cove ra repor pagr fo et entitled "The Apparent Effects Threshold Approach" is attached.
672. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert Foley, U.S. DOI : Reviere , w comment e drafth tn o s Sediment Clean-Up Plan, 6/30/93 . 321347-321348P . .
673. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller,e DNRECth n : i Drafre ,e us t e ARARb o t s ROD, 7/7/93 . 321349-321351P . ARARe th A liss . i s f o t attached. 674. . StanleLetteMr o . Laskowskit rL y , U.S. EPA, fro. mMr Christophe A.G. Tulou, DNREC : Concernre , s aboue th t remedy for the south landfill described in the draft ROD, 7/9/93. P. 321352-321354. A list of reasons for concerns about the chosen remedy is attached.
675. Letter to Ms. Anne V. Hiller, DNREC, from Mr. Randy Sturgeon, U.S e thir.Th EPA de : ROD ,drafth re ,f o t 7/12/93. P. 321355-321355.
676. Journal article entitled "Standard Guide for Conducting Sediment Toxicity Tests with Freshwater Invertebrates," Annual Book of American Society for Testing and Materials Standards, (undated). P. 321356-321378.
677. Facsimile transmitta n MacDonaldDo l . sheeMr o t , NOAA, froRand. Mr m y Sturgeon, U.S. EPA : ,Wetlandsre sampling information, (undated) . 321379-321382P . . Informatio Phase I th Supplementa II en no l Wetlands Investigation and two sampling data tables are attached.
144 678. Facsimile transmitta l. RandsheeMr o yt Sturgeon, U.S. EPA, from Mr. Michael Weber, U.S. Nuclear Regulatory Commission : Informatiore , n thoriuo n m disposal, (undated) . 321383-321397P . A lette. r dated October 16, 1961 regarding a request submitted by E.I. du Pont de Nemour Company& s , licensa Inc r fo . e authorizing f thoriuo e thus em salts a lette, r dated Octobe, 30 r 1964 regardin a requesg r renewa fo ta license f o l , number STB-489, filed by E.I. du Pont de Nemours & Company, Inc., and an Application for Source Material License, license number STB-489, are attached. 679. Report: Partition Coefficient f Biphenvo s d an l Naphthalene between 1-Octano Waterd an l , preparey b d The Dow Chemical Company, 7/12/71. P. 321398-321402.
680. Report: Dowtherm® A and the Environment, prepared by The Dow Chemical Company, 12/10/71. P. 321403-321415. 681. Report: An Analysis of the Distribution Pattern of Dowtherm® A in a River Environment, (undated). P. 321416-321430.
682. Material Safety Data Shee Therminolr fo t ® VP-1 Heat Transfer Fluid, Monsanto Company, (undated). P. 321431-321437.
Clay. R 683n ,. Do U.S Lette. Mr . o rt EPA , froR.L. mMr . Llagarman w ChemicalDo , : Waivere , f confidentialito r y claim r studiesfo s , (undated) . 321438-321458P . o Tw . reports entitled, "Comparison of the Toxicity of Dowtherm A Heat Transfer Fluid and Thermally Degraded Dowther A mHea t Transfer Flui Aquatio t d c Organisms," and entitled "Determination of Uptake and Clearance Rates of 14C-Diphenyl in Rainbow Trout by Radiotracer Techniques" are attached.
684. Letter to Mr. Don Henne, U.S. DOI, Mr. Anthony Conte, USDI, Mr. Sean Morrison and Ms. Kirsten Erickson, NOAA, from Mr. Randy Sturgeon, U.S. EPA, re: Formal notification that the RI/FS is nearing completion and reques o develot positioa p n Preliminaro n y Natural Resource Damages, 6/3/92. P. 321459-321459.
685. Letter to Ms. Anne Hiller, DNREC, from Mr. Randy Sturgeon, U.S. EPA, re: An opportunity to prepare a positio o grant n u PonD t a t"Convenan o Sue,t t " No t 7/16/92. P. 321460-321460.
145 686. Letter to Mr. Thomas C. Voltaggio, U.S. EPA, from Mr. Jonathan P. Deason, DOI, re: Transmittal of the Preliminary Natural Resources Survey, 9/24/92. P. 321461-321478. A report entitled "Technical Analysi E.Ie Ponu th d .Nemour e f d to s Companyd san , Inc. Superfund Site s attachedi " . 687. Report: Preliminary Natural Resource Survey, prepared by NOAA, 10/2/92 . 321479-321501P . .
688. Memorandum to Mr. RSTURGEO [sic], U.S. EPA, from Mr. Roy Smith, U.S u PonD . t EPA : Tablre , e 6-1, 10/6/92. P. 321502-321502.
689. Telephon Meetind an e g BookLo g , Volume III, 12/2/9o t 2 6/4/93. P. 321503-321596.
690. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC : Commentre , n EPA'o s s draft ROD, 1/28/93 . 321597-321626P . e followinTh . e ar g attached:
a) Attachment 1, General DNREC Concerns;
b) Attachmen , Tex2 t t Comments;
c) Attachmen , ARARs3 t ;
a letted) r regardin e ARARth ge sth lisr fo t State of Delaware, dated September 18, 1992;
e) a letter regarding DNREC's comments on the draft Proposed Plan, dated Septembe, 23 r 1992;
f) a letter regarding an addition to the ARARs list, dated September 22, 1992; g) Table 1, U.S. Army Corps of Engineers Dredging, Lis f Delawaro t e Concernd an s Agencies Involved in a Coordinated Review Process of USCOE Operation and Maintenance Activities;
h) a letter regarding DNREC's comments on the Proposed Plan, dated Novembe 1992, 5 r .
146 691. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Miriam A. Lynam, DNREC, re: Delaware Coastal Management Program Policies and DNREC's Summary of Federal Consistency Procedures, 1/29/93. P. 321627-321721. The Delaware Coastal Management Program, Summary of Federal Consistency Procedures d Delawaran , e Coastal Management Program Policie attachede sar .
692. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC : Coastare , l Management Program Consistency Review information, 2/24/93. P. 321722- 321760. A memorandum dated September 18, 1992 regarding a summary of the Delaware Coastal Management Program policies thae applicablar t e Proposeth o t e d Plan is attached. 693. Report: Comprehensive Update and Routine Program Implementation, prepared by the Delaware Coastal Management Program, 3/93 . 321761-321826P . .
694. Rand. LetteMr o yt r Sturgeon, U.S. EPA, froAnn. Ms me V. Hiller, DNREC : Concernre , s abou e drafth t t ROD, 3/1/93 . 321827-321830P . .
695. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Comments on the Proposed Plan, 3/2/93 . 321831-321831P . .
696. Rand. LetteMr o yt r Sturgeon, U.S. EPA, fro. Ms m Benaifer R. Eduljee, DNREC, re: Information concerning potential injury to muskrats at the site, 4/20/93. P. 321832-321833.
697. Journal article entitled, "High-Tech Landfill Caps," Civil Engineering, prepare . JosepMr . Barbagally C hb d o and Mr. Salvatore J. Triano, Malcolm Pirnie, Inc., 5/93. P. 321834-321836.
698. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC, re: Transmittal of Delaware's Preliminary Natural Resource Survey, 5/3/93. P. 321837-321842. The survey report is attached.
699. . LetteRandMr o yt r Sturgeon, U.S. EPA, froAnn. Ms m e V. Hiller, DNREC, re: Comments on draft memo entitled, "River & Wetland Remediation Goals, Sediment Cleanup Criteria, DuPont Newport Superfund Site," 5/13/93. P. 321843-321846.
147 700. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Sarah W. Cooksey, DNREC, re: Consistency determination for the Du Pont-Newport Site, 5/26/93. P. 321847-321857. An excerpt froe Cod f th mFederao e l Regulations, Volume 15, pages 197-202, are attached.
701. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC, re: Development of a sediment clean-up scheme recommended in a teleconference meeting, 6/3/93 321858-321858. P . .
702. Telephone and Meeting Log Book, Volume IV, 6/4/93- 8/19/93. P. 321859-321890.
703. RandLette. Mr o yt r Sturgeon, U.S. EPA, fro. AnnmMs e V. Hiller, DNREC, re: Comments on the second draft ROD, 6/9/93 . 321891-321924P . e followinTh . e ar g attached: a) general comments; b) page specific comments; c) a letter regarding the sediment clean-up scheme, dated Jun , 19933 e ;
a lette ) rd regarding DNREC's commente th n o s sediment cleanup criteria, dated May 13, 1993; e) a letter regarding DNREC's concerns about EPA's first draft ROD, dated March 1, 1993;
a lettef) r regarding DNREC's comment n EPA'o s s first draft ROD, dated January 28, 1993;
a letteg) r regarding DNREC's commente th n o s proposed remedial actions, dated Novembe, 5 r 1992; h) a letter regarding DNREC's comments on the draft Proposed Plan, dated September 23, 1992. 704. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC : Preliminarre , y outlin f DNREC'o e s sediment clean-up plan, 6/10/93 . 321925-321925P . .
148 705. . RandLetteMr yo t rSturgeon , U.S. EPA, fro. AnnMs m e V. Hiller, DNREC, re: DNREC's proposed sediment clean-up plan, 6/21/93. P. 321926-321944. A draft report entitled "Sediment Cleanup Plan, DuPont Newport Superfund journaa Site d "an l article entitled, "Analysis of Acid-Volatile Sulfide (AVS) and Simultaneously Extracted Metals (SEM) for the Estimatio Potentiaf no l Toxicit Aquatin i y c Sediments" e attachedar .
706. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC, re: Preliminary comments on the draft Responsiveness Summary, 6/23/93. P. 321945- 321949. Genera pagd an le specific commente ar s attached.
707. Lette. Joh . SturgeoMr R no t r n [sic], U.S. EPA, from Mr. Peter T. Knight, NOAA, re: Comments summarizing discussion on the sediment clean-up criteria, additional toxicity testing, and monitoring of the remedial action plan, 6/29/93. P. 321950-321951.
708. . LetteStanleMr o t . LaskowskirL y , U.S. EPA, fro. Mr m Christophe A.G. Tulou, DNREC, re: Comments and recommendations concerning the remedy for the South Landfill, 7/9/93. P. 321952-321954. Comments on the proposed remedy are attached.
709. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, : Thirre d finaan d l editiomemorandue th f o n m describing the determination of the wetland and river sediment criteria, 7/9/93 . 321955-321985P . A lette. r regarding revised performance standards and monitoring requirements and a report entitled, "Sampling Plan and Performanc eu Pont-Newpor D Standard e th r fo s t Site."
710. . RoberLetteMr . o DavisS t r , U.S. EPA, fro. PetemMr r T. Knight, NOAA, re: NOAA's comments on the ROD and the Decision Summary, 7/23/93. P. 321985a-321985j. The draft Restoration Proposal of the Michaelsville Landfill Vegetation and Appendix 2, Estimated Cost Comparison for Vegetation Installation and Operation and Maintenance, are attached.
711. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC : Changere e ARAR, th o st s tabln i e the ROD, 7/27/93 . 321986-321986P . .
149 712. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, froRober. mMr Davis. S t , U.S. EPA : Transmittare , f lo NOAA's comment e drafth tn o sROD , 7/30/93 . 321987P . - 321997 A lette. r dated Jul, 19923 y 3 regarding comments on the draft ROD is attached.
713. Memorandum to RSTURGEO [sic], U.S. EPA, from Mr. William Schremp, U.S. EPA, re: Air emissions requirement e disposath d f an soilso l , 8/2/93. P. 321998-321998.
714. Memorandum to Mr. John R. Sturgeon [sic], U.S. EPA, from Mr. Bill Foster, U.S. EPA, re: Comments on the proposed ROD, 8/2/93. P. 321999-322000.
715. Letter to Mr. Robert Davis, U.S. EPA, from Mr. Robert E. Foley, U.S. DOI, re: Comments on proposed ROD, 8/6/93 . 322001-322003P . .
716. . StanleLetteMr o t . LaskowskirL y , U.S. EPA, fro. Ms m Mary L. McKenzie, DNREC, re: Letter of non-concurrence wite RODth h , 8/17/93 . 322004-322008P . e commentTh . s are attached.
717. Memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. Mr m Greg Koltonuk, U.S. EPA, re: Comments on the ROD concerning the underground storage tank system, 8/19/93. P. 322009-322009.
718. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: DNREC's non-concurrence with the proposed ROD, 8/23/93. P. 322010-322010.
719. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Coastal Management Zone Act Compliance Determination, 8/23/93 . 322011-322026P . .
720. . RoberLetteMr o Ann. t r Ms Kuehe d Hilleran l , DNREC, from Mr. Randy Sturgeon, U.S. EPA, re: Negotiation of a consen tRemediae decreth r fo el Design/Remedial Action (RD/RA) witpotentialle th h y responsible parties, 8/24/93. P. 322027-322027.
721. Letter to Mr. Anthony R. Conte and Mr. Mark Barash, n HenneDo . ,Mr USDI U.Sd an , . DOI, fro. RandmMr y Sturgeon, U.S. EPA, re: Negotiation of a consent e RD/Rdecreth Ar fo witee potentiall th h y responsible parties, 8/24/93. P. 322028-322028.
150 722. . KirsteLetteMs o t . EricksorL . n Pete Mr rd an nKnight , NOAA, from Mr. Randy Sturgeon, U.S. EPA, re: Negotia- a consentio f o n te RD/R decreth Ar fo witee th h potentially responsible parties, 8/24/93. P. 322029- 322029.
723. Letter to Mr. David Carters, DNREC, from Mr. Randy Sturgeon, U.S. EPA, re: Consistency determination, 8/24/93. P. 322030-322030.
724. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Note d informatioan s n use o determint d e whether the AWQC/SWQS shoul e waivedb d , 8/24/93 . 322031P . - 322057. Four page f handwritteo s n note d chemicaan s l toxicity informatio r commofo n n soil background levels are attached.
725. RandLette. Mr yo t r Sturgeon, U.S. EPA, fro. mMr Camille Costa, Dynamac Corporation, re: Revised performance schedule, (undated). P. 322058-322074. A report entitled "Sampling Plad Performancan n e Standard e DuPont-Newporth r fo s t Site d Attachmenan " t 2, Cost Estimate r Sedimenfo s t Test t DuPonta s , Newport, are attached.
726. Information submitted to Mr. Randy Sturgeon, U.S. EPA, fro Ric. mMr k Greene, DNREC : Contaminatio,re e th n ni Red Clay Cree d Whitan k e Clay Creek, (undated). P. 322075-322205. The following are attached: a) STORET Datr Tota fo d aDissolve an l d Zinc, Woodale Station;
a lette ) rb regardin e 199d Clath gRe 0 y Creek Report, dated Septembe , 199025 r ;
a repor ) tc entitled "Zinc Contaminatioe th n i n Water d Clad SedimentRe an s y e Creekth f so , New Castle County, Delaware," dated July 1990;
a repord) t entitled "Final Sampling Plan, White Clay Creek Intensive Survey;"
a repore) t entitled, "Synoptic Repor n Toxio t c Substances Contamination of Red Clay Creek;"
151 f) a portion of a report entitled, Intensive Toxics Survey on the White Clay Creek."
727. Excerpt from Code of Federal Regulations Chapter I, Volum , page10 e s 126-147, (undated) . 322206-322216P . . 728. Excerpt from Code of Federal Regulations, Chapter I, Volum , page10 e s 644-647, (undated) . 322217-322218P . .
729. Excerpt from Cod f Federao e l Regulations, Chapte, I r Volum , page10 e s 344-347, (undated) 322219-322220. P . .
730. Journal article entitled "Acid-Volatile Sulfide (AVS) ia Seasonalln y Anoxic Mesotrophic Lake: Seasonad an l Spatial Change n Sedimeni s t AVS," Environmental Toxicolog Chemistryd an y , (undated) . 322221-322227P . .
731. Editorial entitled "Understanding the Toxicity of Contaminants in Sediments: Beyond the Bioassay-Based Paradigm," Environmental Toxicit Chemistryd van , (undated) . 322228-322231P . .
732. Record of Decision, E.I. Du Pont-Newport Superfund Site w Castl,Ne e County, Delaware, 8/93 . 322232.P - 322480.
Record of Decision Amendment Information
The following documents ware used in preparation of a Proposed Remedial Actio Soute nth Plahr Landfilnfo l aref ao the site. However, no final decision requiring changes will be made until after the public comment period.
733. . PauLetteMr l o t Welshr , Delaware Departmenf o t Transportation (DelDOT), from Mr. Edward R. Kubala and Mr. Scott Simon A Engineering,E , Scienced an , Technology, re: Submittal of a proposal to provide environmental services, 3/2/93. P. 322481-322486. A facsimile cover shee d Figuran t , Propose1 e d test boring location map, DelDOT Newport Basin Road Portion e Superfunoth f d Site e attachedar , .
152 734. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JosepmMr h T. Wutka and Mr. Mark C. Tudor, DelDOT, re: Transmitta n Environmentaa f o l l Data Review Report, 4/29/93. P. 322487-322493. The following are attached:
a) a letter regarding a summary report of information from the record about the site, dated Apri , 19932 l ;
b) Figure 1, Site location map, DelDOT, Basin Road Portion of the Site, Newport, Delaware;
c) Figure 2, EPA's estimated area scheduled for remedial excavation, DelDOT, Newport Basin Road Portion of the Superfund Site; d) Figur Sit, e3 e excavation location map, propose A remediaEP d l excavationd an , previously excavated Rout 1 constructio14 e n area, DelDOT, Basin Road Portion of the Newport Site.
735. . LetteRandMr o yt r Sturgeon, U.S. EPA, fro. EdwarmMr d . KubalaR A Engineering,E , Science Technologyd an , : re , Transmittal of analytical detection limits, 4/29/93. P. 322494-322509. The following are attached:
a) four tables entitled Method Detection Limits (MDLS) Determined for Soil Samples By EA Laboratorie 6 Appendi13 s AccordinR CF x0 4 o t g B;
a lette ) rb regardin e submittath g a f o l proposal to provide environmental services, dated March 2, 1993; c) Figure 1, Proposed test boring location map, DelDOT Newport Basin Road Portion of the Superfund Site;
a letted) r regardin a summarg y reporf o t information from the record about the site, dated Apri , 19932 l ;
e) Figur Sit, 1 e e location map, DelDOT, Basin Road Portion of the Site, Newport, Delaware;
153 f) Figure 2, EPA's estimated area scheduled for remedial excavation, DelDOT, Newport Basin Road Portion of the Superfund Site; g) Figur , Sit3 e e excavation location map, proposed EPA remedial excavation and previously excavated Rout 1 constructio14 e n area, DelDOT, Basin Road Portioe th f o n Newport Site. 736. Report: Preliminary Environmental Investigation, DelDOT, Basin Access Road (Newport Superfund Site), Newport, Delaware, prepare A EngineeringE y b d , Science, and Technology, Inc., 8/93. P. 322510-322646. A letter dated October 20, 1993 regarding transmittal of the report is attached.
737. Excerpts fro a telephonm g booklo e , 8/26/9o t 3 10/18/94 322647-322662. P . . 738. Handwritten meeting attendance list and meeting summary notes, 1/28/94. P. 322663-322666.
739. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. James P. PeteBuczal. Mr Jacobson. rR d an a , Woodward-Clyde Consultants : Monthlre , y Progress Report Numbe, 66 r 2/8/94 . 322667-322668P . .
740. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert Wiederhorn, DuPont Chemicals, re: Submittal of a proposal for remedial alternatives for the South Landfill and Christiana River portions of the site, 2/25/94. P. 322669-322671.
741. Rober. LetteMr o t r Wiederhorn, DuPont Chemicals, from Mr. Randy Sturgeon, U.S. EPA, re: Preliminary review proposae oth f l submitted Februar , 19925 yr 4fo remedial alternative e Soutth hr Landfilfo se th d lan Christiana River portions of the site, 3/2/94. P. 322672-322673.
742. . RandLetteMr o yt r Sturgeon, U.S. EPA, fro. JoemMr l Karmazyn, DuPont : Monthlre , y Progress Report Number 68, 3/9/94. P. 322674-322675.
154 743. . RandLetteMr yo t r Sturgeon, U.S. EPA, fro. RobermMr t Wiederhorn, DuPont Chemicals morA e: re ,detaile d descriptio e proposath r r remediafo nfo l l alternatives Soute th hr Landfilfo d Christianlan a River portionf so the site, 3/14/94. P. 322676-322690. The following are attached: a) South Disposal Portion of the Site Remedial Option summary;
b) Table 1, South Disposal Site Remedial Option, Institutional Controls-Access Road Improvements, Low Permeability Cover System- Soil Bentonite Slurry Wall, South Pond Closure, Preliminary Cost Estimate, DuPont Newport Site;
c) Figure 1, Cross-Section J-J1 South Disposal Site Remedial Option, Newport, Delaware;
d) Figure 2, Cross-Section Location Relative to Slurry Wall Locations, South Disposal Site Remedial Option 3B, DuPont-Newport Site, Newport, Delaware; e) Figure 3, South Disposal Site Remedial Option, DuPont-Newport Site, Newport, Delaware.
744. LetteRober. Mr o rt Davis, U.S. EPA, froRober. mMr t J. Pennington, U.S. Department of the Interior, re: Comment proposae th n r remediao s fo l l alternativer fo s the South Landfill and Christiana River portions of the site, 3/14/94. P. 322691-322692.
745. Telephone log book entry, re: Site work to be performed by DuPont, 3/15/94. P. 322693-322694.
746. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Statu possibla f o s e e e remedchangth th t o a t ye South Landfill portion of the site, 3/29/94. P. 322695-322695.
747. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Joel Karmazyn, DuPont : Monthlre , y Progress Report Number 69, 4/4/94. P. 322696-322697.
155 748. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. P. Brandt Butler, DuPont Chemicals : Summarre , f issueo y s concernin Consene th g t Decree negotiations, 4/8/94. P. 322698-322701.
749. Letter to Mr. Joel Karmazyn, E.I. du Pont de Nemours & Company, froRand. mMr y Sturgeon, U.S. EPA: ,re Request for additional information about the proposed remedy for the South Landfill portion of the site, 4/26/94 322702-322702. P . .
750. Letter to Mr. Randy Sturgeon and Mr. Robert S. Davis, U.S. EPA, from Mr. Peter T. Knight, National Oceanic and Atmospheric Administration (NOAA), re: Review comments on the revised Proposed Plan, 5/5/94. P. 322703-322706.
751. Memorandum to Mr. John R. Sturgeon, U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Review comments on the revised Proposed Plan, 5/5/94 . 322707-322709P . .
752. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Raymon . RichterD d , DelDOT : Concernre ,e Recorth n o ds of DecisioBasie th nr fo Roan d Access Road Area portion e siteoth f , 5/13/94 . 322710-322711P . .
753. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. AnnmMs e V. Hiller, DNREC : Transmittare , f commento le th n o s draft Proposed Plan, 5/18/94. P. 322712-322713. The comment e attachedar s .
754. Memorandum to Mr. Don Draper, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA : Requesre , e r revieth fo t f o w propose de Sout remedth hr fo Landfily l portioe th f o n requesa sitd ean discuso t effectivenese sth t sa limiting or preventing the migration of heavy-metal contamination to the ground water, wetlands, and river, 5/25/94. P. 322714-322715.
755. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. JameMr m s Buczal. PeteMr . Jacobsond rT an a , Woodward-Clyde Consultants, re: Response to an April 26, 1994 letter requesting estimates on ground water discharge and metals loading to the south wetlands, 5/27/94. P. 322716-322719.
156 756. Facsimile transmittal sheet to Mr. Randall Ross, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA, re: Comments e Soutoth n h Landfill portioe sitth e f o nremedia l alternative propose y DuPontb d , 7/29/94 . 322720P . - 322735 n excerpA . t froe drafth m t Remedial Desigd an n Remedial Action Work Plan for the DuPont Newport Superfund Site, dated July 29, 1994 is attached. 757. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Randall Ross, U.S. EPA, re: Comments on the proposed remedial alternative e siteth ,r fo s8/5/94 . P. 322736-322737.
758. Handwritten memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Summary of concerns from the Biological Technical Assistance Group, 8/26/94 . 322738-322738P . .
759. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. AnnMs m e V. Hiller, DNREC : e seconReviere ,th f do w draff o t the Proposed Plan, 10/4/94 . 322739-322740P . .
760. Memorandue FerdasAb . Mr , o U.St m . EPA, fro. DaviMr m d Bennett, U.S. EPA, re: Confirmation of the results of the Proposed Plan consultation on the South Landfill portioe siteth ,f o n10/6/94 . 322741-322741P . .
761. Excerpts frohandwrittee th m n lognote . RandMr f yo s Sturgeon, U.S. EPA, 8/26/93 322742-322748. P . .
762. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Rober . DavisS t , U.S. EPA : Transmitta,re f commento l s on the draft Proposed Plan, 9/28/94. P. 322749-322754. Two letters containing the comments of the National Oceanic and Atmospheric Administration are attached.
763. Memorandu Maghini. M o t m . Knight. P Guy,C d , an ,fro m Mr. Robert S. Davis, U.S. EPA, re: Transmittal of correspondence wit. RandMr h y Sturgeon, U.S. EPA, concerning comments on the Proposed Plan, 9/30/94. P. 322755-322776 e followinTh . e attachedar g :
memorandua a) m concernin e hydrologgth e th t a y site, dated August 5, 1994; a lette ) rb containing DuPont's commentn i s response to EPA's April 26, 1994, request for estimates of groundwater discharge and metals loading , 1994 27 date y ;Ma d
157 c) a letter responding to EPA's request of March 2, 1994, for more information concerning DuPont's proposed remedial alternative, dated Marc , 199414 h ; d) a memorandum from Woodward-Clyde Consultants concerning the "South Disposal Site Remedial Option." 764. Memorandu Abraha. Mr o t m m Ferdas, U.S. EPA, fro. Mr m David Bennett, U.S. EPA, re: Conditional confirmation preferree oth f d alternativ DuPone th r t fo eNewpor t South Landfill Site, 10/6/94. P. 322777-322777.
765. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Robert S. Davis, U.S. EPA, re: Regulatory comments concernin remediae th g l alternativ sitee th ,r fo e 10/18/94 . 322778-322780P . .
766. Rand. LetteMr yo t rSturgeon , U.S. EPA, froRober. mMr t J. Pennington, U.S. Departmen e Interiorth f o t: re , Revie d commentan w s concernin e Proposeth g d Plan, 10/18/94. P. 322781-322783.
767. RandLette. Mr yo t rSturgeon , U.S. EPA, froRober. mMr t J. Pennington, U.S. Departmen e Interiorth f o t: re , Comments concerning remedial alternatives, 10/20/94. P. 322784-322785.
768. Handwritten memorandum to file from Mr. Randy Sturgeon, U.S e decisio. Th EPA : o retai,re t n n treatmena s a t componen e site e remedth th ,r f fo yo 11/28/94t . P. 322786-322787.
769. DuPont Company's modified remedial proposal for the Newport, Delaware Superfund Site, 12/16/94. P. 322788-322791.
770. Information packet, DuPont-Newport Superfund Site, South Landfill Remedy Proposal Meeting, preparey b d DuPon preseno t EPAo t , 1/18/95 322792-322899. P . . A packet containing boring logs and particle size test results from the South Landfill is attached.
771. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. P. Brandt Butler, DuPont, re: Assumptions and overall concept of the proposed remedial alternative for the site, 2/14/95. P. 322900-322901.
158 772. Report: Proposal, South Landfill Treatment, prepared by DuPont, 3/15/95 . 322902-323073P . .
773. Report: Proposal, South Landfill Treatment, prepared by DuPont, 4/5/95 . 323074-323320P . .
774. Facsimile transmittal sheet to Mr. Randy Sturgeon, U.S EPA, fro. Ramo Mr m. Benitez F n , U.S. Army Corpf o s Engineers : Commentre ,e Sout th hn o s Landfill Treatment Proposal, 4/14/95. P. 323321-323323.
775. Rand. LetteMr o yt r Sturgeon, U.S. EPA, fro. KarmMr l F. Kalbacher, DNREC, re: Comments on the South Landfill Treatment Proposal, 5/12/95. P. 323324- 323324.
776. Memorandum to Mr. David M. Kargbo, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA, re: Comments concerning the soil for the South Landfill Treatment Proposal, 6/1/95 P. 323325-323326.
777. Memorandu o filmt e fro. RandmMr y Sturgeon, U.S. EPA, re: Comments concerning increased cost f remediao s l action and the scope of the alternative remedies for the site, 7/14/95. P. 323327-323328.
778. Memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Notification that upcoming changes to the remedy for the South Landfill are still consistent with the Coastal Zone Management Act, 7/19/95. P. 323329- 323329.
779. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Mr. Rober . DavisS t , U.S. EPA : Regulatorre , y revied an w comment ESDe th ,n o 7/19/95s . 323330-323331P . .
780. Excerpts froe handwritteth m n lognote . RandMr f yo s Sturgeon, U.S. EPA, 7/21/95-7/28/95. P. 323332-323333
781. Telephone lognote voicemaia f o s l messagRand. Mr yo t e Sturgeon, U.S. EPA, from Ms. Sharon Frey, U.S. EPA, re Approval of the ESD from EPA Headquarters and notification that no further consultation is needed, 7/31/95. P. 323324-323324.
782. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne V. Hiller, DNREC, re: Comments concerning the South Landfill ESD, 8/4/95. P. 323325-323326.
159 783. Letter to Mr. Thomas Voltaggio, U.S. EPA, from N. V. Raman, DNREC : DNREC're , s d concurrencreviean f o w e wite proposeth h d remedy change, 8/4/95 . 323327P . - 323327.
784. Handwritten memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Review of 1991 memorandum concerning groundwater contamination, 8/8/95. P. 323328-323328. 785. Report: Chemical Treatment Performance Standard-South Landfill Alternate Treatment, prepare y DuPontb d , 8/11/95. P. 323329-323346.
786. Explanatio f Significano n t Differences, E.I. DuPont- Newport Superfund Site, New Castle County, Delaware, 8/16/95 . 323347-323380P . .
787. Facsimile memorandum to Mr. Randy Sturgeon, U.S. EPA, fro. JameMr m s Fajkowski, U.S. Army Corp f Engineero s s (USAGE), re: Transmittal of comments on the North Landfil d Planlan te site th Are ,t a 10/31/95. P. 323381-323385. The October 20, 1995, and October 27, 1995, comments, with hand written notes, are attached.
788. . BrandLetteMr o t r Butler, DuPont, fro. RandmMr y Sturgeon, U.S. EPA, re: Comments on the September 29, 1995, Value Engineering Report for the North Landfill and Plant Area, 12/13/95 323386-323387. P . .
789. Report: Plant Area. Value Engineering Report, Addendum, Newport Superfund Site, Newport, Delaware. prepared by DuPont, 5/6/96. P. 323388-323512.
790. Report: North Landfill, Value Engineering Report Addendum, Columbia Aguifer Assessmen d Sitewidan t e Hvdrogeologic Conceptual Model, prepared by DuPont, 7/2/96. P. 323513-323793. A July 2, 1996, submittal . RandletteMr yo t rSturgeon , U.S. EPA, fro. BrandMr m t Butler, DuPont, is attached.
791. Excerpts from DuPont Environmental Remediation Services (DERS) Project No. 2124, with handwritten notes, 7/2/96. P. 323794-323798. An August 15, 1996, Table 4, "Columbia Aquifer Assessment and Sitewide Hydrological Conceptual Model, Groundwater Quality Data," is attached.
160 792. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Butler, DuPont : Transmittare , f photographo l r fo s insertio Columbie th n ni a Aquifer Assessment Report, Appendix A, 7/16/96. P. 323799-323806. The photographs are attached.
793. Comments on the North Landfill Value Engineering Report Addendum, Columbia Aquifer Assessmen d Sitewidan t e Hydrogeologic Conceptual Model, prepare y USAGEb d , 7/19/96. P. 323807-323809. An August 14, 1996, facsimile transmittal memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, from Ms. Justina Wesley, CENAB, is attached.
794. Memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. mMr David Kargbo, U.S. EPA, re: Comments concerning the Columbia Aquifer Assessment and Sitewide Hydrogeologic Conceptual Model, 8/13/96 . 323810-323810P . .
795. Rand. LetteMr yo t rSturgeon , U.S. EPA, froAnn. Ms m e Hiller, DNREC : Comment re ,e Columbi th n o s a Aquifer Assessmen d Sitewidan t e Hydrogeologic Conceptual Model and recommended modification to the current ROD performance standards, 8/15/96. P. 323811-323812. An Augus , 19967 t , memorandu . KurMr to t mOlinger , DNREC, . MargiM fro. mMs e Zhang, DNREC s attachedi , .
796. . BrandLetteMr o t r Butler, DuPont, fro. RandMr m y Sturgeon, U.S. EPA : ,Summarre f issueo y s discussen i d the September 11, 1996, EPA meeting concerning the installation of a slurry wall to the base of the fill zone, which was requested in the July 2, 1996, Columbia Aquifer Assessmen d Sitewidan t e Hydrogeologic Conceptual Model, 9/11/96. P. 323813-323814.
797. Protectiveness Assessment, Potential e Impacth f o t Columbia AquifeChristine th n ro a River, Newport Superfund Site, prepare y DuPontb d , 1/17/97. P. 323815-323823 A Januar. , 199717 y , submittal letter Rand. toMr y Sturgeon, U.S. EPA, fro. BrandmMr t Butler, DuPont, is attached.
798. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Butler, DuPont : Transmittare , f Figuro l , "Wel2 e l Locations, Groundwater River Protectiveness Assessment," whic s inadvertentlwa h y omitted froe th m Januar , 199717 y , Protectiveness Assessment, Potential Impact of the Columbia Aquifer on the Christina River, 1/28/97 . 323824-323825P . . Figur s attachedi 2 e .
161 799. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Butler, DuPont, re: Submittal of supplemental information to the January 17, 1997, Protectiveness Assessment, Potential Impact of the Columbia Aquifer on the Christina River, 2/20/97 . 323826-323827P . . Christina River hardness data is attached. 800. . LetteBarbarMs o t r a Okorn, U.S. EPA, fro . PetemMr - r Knight, National Oceani d Atmospherian c c Administration (NOAA) : Commentre , e Januarth , n 1997o s17 y , Protectiveness Assessment, Potential Impact of the Columbia Aquifee Christinth n o r a River, 3/14/97. P. 323828-323832. Tabl , "Concentration1 e f selecteo s d trace elements detected in surface water of the Christina River durin r Koppergfo PhasI R sI e Company, Newport Site, Delaware, d Tabl an ", "Ambien2 e t Water- Quality Criteria (AWQC) ranges for Cd, Pb, and 2n in the Christina River," are attached.
801. Report: Phas I EvaluatioI e f Intrinsio n c Bioremediation. Newport Superfund Site, Newport, Delaware, prepare y DuPontdb , 7/16/97 . 323833P . - 323971.
802. Review Comments, Phase II Evaluation of Intrinsic Bioremediation, Newport Superfund Site, Newport, Delaware, (author not cited), 7/16/97. P. 323972- 323973.
803. Memorandu . JustinMs o t ma Wesley, USAGE, fro. JareMr m d Olsen, CENAB : Transmittare , f comment o le Phas th en o s II Evaluation of Intrinsic Bioremediation, 8/12/97. P. 323974-323977 e AugusTh ., 1997 12 t Augusd ,an , 13 t 1997, comment e attachedar s .
804. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, fro. mMs Justina Wesley, USAGE : Notificatiore , n thaa t document has been saved as a WordPerfect 5.2 for Windows file, 8/21/97. P. 323978-323978.
805. Memorandum to Mr. Randy Sturgeon, U.S. EPA, from Ms. Joyce Boyd, U.S. EPA, re: Retrieval of data from the EPA's storet system database, 9/18/97. P. 323979- 323984.
162 806. Rand. LetteMr yo t rSturgeon , U.S. EPA, fro. mMr William Pew, DuPont : Submittare , f Christino l a River Bottom Integrity Assessment, which supplements the January 17, 1997, Protectiveness Assessment, Potential e ColumbiImpacth f o t a Aquifee Christinth n o r a River, 10/23/97. P. 323985-323986. 807. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. mMr William Pew, DuPont, re: Clarification of request for minor modifications to the North Landfill and Plant Area vertical barrier remedies, 10/31/97. P. 323987- 323989.
808. Memorandu e filth e o t mfroRand. mMr y Sturgeon, U.S. EPA: Drafre , t North Landfill Ground Water Barrier Wall Depth Modification, E.I. DuPont, Newport Superfund Site, 11/97 . 323990-323999P . .
809. Facsimile memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. MatMr m t Brill, DuPont : Transmittare , f borino l g and monitoring well information, 11/21/97. P. 324000- 324003. A September 11, 1990, Log of Boring No. TB-34, an April 3, 1991, figure, "Report of Monitoring Well MS-34A," and an April 3, 1991, figure, "Report of Monitoring Well MW-34B, e attachedar " .
810. Memorandu Rand. Mr yo t mSturgeon , U.S. EPA, fro. Mr m William Pew, DuPont, re: Transmittal of a cost savings estimate for the North Landfill Short Wall, 12/2/97. P. 324004-324005 e cosTh .t estimat s attachedi e .
811. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, from Mr. Peter Knight, NOAA, re: Notification of the need for an adequate monitoring program to address concerns about models, assumptions, inputs to the Christina River, and documentation of the success of the remedial action, 12/17/97 . 324006-324006P . .
812. Memorandu e filth e o t m froRand . mMr y Sturgeon, U.S. EPA, re: Modification to the selected remedy in the August 26, 1993, ROD, based on new information concerning the Columbia Aquifer and its interaction with the Christina River, 2/26/98. P. 324007-324018. A February 26, 1998, transmittal letter to Mr. William Pew, DuPont, from Mr. Randy Sturgeon, U.S. EPA, and a Februar , 199825 y , concurrence memorandu . RandMr yo t m Sturgeon, U.S. EPA, from Mr. David Kargbo, U.S. EPA, are attached.
163 813. Table entitled "Hardness Dependent Acut Chronid an e c Freshwater AWQCs for Trace Elements,"(undated). P.324019-324020. 814. Five-Year Review Report, E.I. Dupont, Newport Superfund Site, Newport, Delaware, 3/31/00. P. 324021-324031.
815. . StepheLetteMr o t rn Hsu, DuPont Engineering, fro. Mr m Guglielmetti, DuPont Environmental Remediation Services, re: Details of field investigation to be conducted by Dupont Environmental Remediation Services to determine exten f wasto t e material betwee e seweth n r line and the Christina River, 8/28/95. P. 324032-324032.
816. Report: South Landfill Value Engineering Report, Newport Superfund Site, prepare y DuPonb d t Environmental Remediation Services, 10/30/95. P. 324033-324173. 817. Geotechnical Comments on Value Engineering Report, E.I. DuPont Newport Superfund Site, South Landfill, prepared by USAGE, 11/30/95 . 324174-324176P . A Decembe. , 4 r 1995, transmittal memorandu Rand. Mr yo t m Sturgeon, U.S. EPA, fro. JustinmMs a Wesley, USAGE s attachedi , .
818. Excerpts from the handwritten lognotes of Mr. Randy Sturgeon, U.S. EPA, 9/15/95-7/10/97. P. 324177-324188.
819. Letter to Mr. Brandt Butler, DuPont Environmental Remediation Services, froRand. mMr y Sturgeon, U.S. EPA, re: EPA's comments on the October 30, 1995, South Landfill Value Engineering Report, 2/7/96. P. 324189-324190.
820. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Butler, DuPont Environmental Remediation Services, re: Details of DuPont Environmental Remediation Services proposal to install wells on the South Landfill portion of the site, 2/8/96. P. 324191-324192. A February 7, 1996, sitp entitledema , "Newport Superfund Site, South Landfill Proposed Well Location r Permeabilitfo s y Test, Groundwater Extraction d Monitoring,an , s attached"i .
821. Report: South Landfill Value Engineering Report Addendum, Newport Superfund Site, Newport, Delaware. prepare y DuPonb d t Environmental Remediation Services, 4/8/96 . 324193-324255P . .
164 822. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Bulter, DuPont Environmental Remediation Services: re , Submissio f addenduo n e Octobeth , o 1995mt 30 r , report entitled, "South Landfill Value Engineering Report," 4/9/96 324256-324256. P . . 823. Letter to Mr. Randy Sturgeon, U.S. EPA, from Ms. Anne Hiller, DNREC, re: DNREC's comment on the Value Engineering Report Addendum, 5/7/96. P. 324257-324258.
824. Memorandum to Ms. Anne Hiller, DNREC, Chris Guy, U.S. Fisd Wildlifan h e Service (USFWS), Barbara Okorn, U.S. EPA. PeteMr , r Knight ,. Ramo Mr NOAA d n an ,Benitez , USAGE : Commentre ,e Sout th hn o sRive r Bank Cover System, 6/6/96 . 324259-324260P . .
825. Memorandu . RandMr yo t m Sturgeon, U.S. EPA, fro. mMs Barbara Okorn, U.S. EPA Biological Technical Assistance Group : Commentre ,e Sout th hn o sRive r Bank Cover System, 6/12/96 . 324261-324261P . .
826. Letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Ramon Benitez, USAGE, re: Comments on the South River Bank Cover System, 6/13/96. P. 342262-324263.
827. Letter to Mr. Brandt Butler, Dupont Environmental Remediation Services, fro. RandmMr y Sturgeon, U.S. EPA, re: Comments on the report entitled, "South Landfill Value Engineering Report," 6/28/96. P. 324264-324265.
828. LetteRand. Mr o yt r Sturgeon, U.S. EPA, fro. mMr William Pew, Dupont Environmental Remediation Services, re: Submissio f groundwateo n r data from South Landfill monitoring wells, 12/2/97. P. 324266-324269. A December 12, 1997 table entitled, "South Landfill Groundwater Quality," and a November 11, 1997, figure entitled, "South Landfill Wells," are attached.
829. Willia. LetteMr o t rm Pew, DuPont Environmental Remediation Services, from Mr. Randy Sturgeon, U.S. EPA, re: Comments on Dupont's request to remove requirement for treatment of South Landfill waste material, 1/6/98 . 324270-324270P . .
165 830. Report: South Landfill Treatabilitv Report, Newport Superfund Site, Newport, Deleware, prepared by Dupont Corporate Remediation Group, 3/26/99. P. 324271-324330. A March 26, 1999, transmittal letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. William Pew, Dupont Corporate Remediation Group s attachedi , .
831. Presentation packet entitled, "South Landfill Review, Newport Superfund Site," prepare y DuPontb d , 5/4/00. P. 324331-324346. 832. Presentation Packet entitled, "Permeable Reactive Wall for Newport South Landfill," prepared by Mr. John Wilkins, Dupont Central Researc Development& h , 5/4/00. P. 324347-324360.
833. Electronic mail memorandu . PeteMr o rt m Ludzia, U.S. EPA, from Mr. Randy Sturgeon, U.S. EPA, re: Notification that EPA's Mr. Ken Lovelace had informed . SturgeoMr a reactiv f no thae eus t barrier wall around the South Landfill would meet preferenc r treatmenfo e t e siteath t , 5/25/00 . 324361-324361P . . 834. Report: Permeable Reactive Barrier Treatment, South Landfill, Newport Superfund Site, Newport, Delaware, prepared by DuPont Corporate Remediation Group, 7/7/00. P. 324362-324601.
835. Excerpts from the handwritten lognotes of Mr. Randy Sturgeon, U.S. EPA, 9/6/00-4/9/01. P. 324602-324607. 836. Presentation packet entitled, "South Landfill Review, Newport Superfund Site," prepare y DuPontb d , 10/6/00. P. 324608-324649.
837. Report: Dupont Newport Superfund Site, South Landfill Project, South James Street Alternatives, Engineering Report, prepared by URS Corporation, 11/00. P. 324650-324681 NovembeA . , 200029 r , transmittal letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Brandt Butler for Mr. Jim Aker, Dupont Corporate Remediation Group attacheds i , .
838. Electronic mail memorandum to Mr. Brandt Butler, URS Corporation, from Mr. Randy Sturgeon, U.S. EPA, re: Request for more information about issues concerning the South Landfill, 11/30/00 . 324682-324682P . .
166 839. Electronic mail memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. KurmMr t Olinger, DNREC : Commentre ,e th n o s report entitled, "South James Street Alternatives Engineering Report," 12/12/00. P. 324683-324683.
840. Electronic mail memorandu . JennifeMs o t m r Chan, U.S. EPA, fro. BrandmMr t Butler CorporationS UR , : re , Information thaB treatmenPR t o anythintd wilt no lo t g chromiu r arsenico m , 2/2/01 . 324684-324685P . A . Februar , 20012 y , electronic mail transmittal memorandu . RandMr o yt m Sturgeon, U.S. EPA, fro. Ms m Jennifer Chan, U.S. EPA, is attached.
841. Document entitled, "Respons CommentsA EP o et , Feasibility Assessment and Proposal, South Landfill Permeable Reactive Barrier Remedy, Newport Superfund Site, Newport, Delaware," 3/1/01 . 324686-324725P . A . March 1, 2001, transmittal letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Jim Aker, Dupont Corporate Remediation GroupMarca d , 20012 han , , transmittal . RandletteMr yo t rSturgeon , U.S. EPA, fro. BrandMr m t Butler S CorporationUR , e attachedar , . 842. Electronic mail memorandu . RandMr o yt m Sturgeon, U.S. EPA, from Mr. Christopher Clayton, USAGE, re: Transmitta f reviewo e lreactiv th f o s e th wal t a l South Landfill, 3/19/01 . 324726-324730P . A Marc. h 13, 2001, document entitled, "Feasibility Assessment and Proposal: Permeable Reactive Barrier Remedy, Newport Superfund Site, Newport, Delaware, Review Comments, Marca d 2001, 8 h"an , document entitled, "Newport Superfund Site, Delaware, Feasibility Study & Proposal, South Landfill Permeable Reactive Barrier Remedy, Geotechnical Review Comments, e attached"ar .
843. Report: Feasibility Assessmen d Proposalan t : Permeable Reactive Barrier Remedy, Newport Superfund Site, Newport, Delaware, 1/01. P. 324731-325059. A January 22, 2001, transmittal letter to Mr. Randy Sturgeon, U.S. EPA, from Mr. Jim Aker, Dupont Corporate Remediation Group, is attached.
167 844. Document entitled, "Response to Supplemental EPA Comments, Feasibility Assessmen d Proposalan t , South Landfill Permeable Reactive Barrier Remedy, Newport Superfund Site, Newport, Delaware," 5/11/01. P. 325060-325073 , 200111 y ,Ma transmittaA . l letter . RandMr yo t Sturgeon, U.S. EPA m Aker, Ji fro. , Mr m Dupont Corporate Remediation Group, is attached. 845. Document entitled, "Protective Assessment, South Landfill Permeable Reactive Barrier Remedy, Newport Superfund Site, Newport, Delaware," 5/17/01. P. 325074-325077. A May 17, 2001, transmittal letter is attached.
846. Handwritten memo to file from Mr. Randy Sturgeon, U.S. EPA, re: Documentation of discussion of South Wetlands Protective Assessment, 5/18/01. P. 325078-325079. 847. Handwritten mem o filet o , fro. RandmMr y Sturgeon, U.S.EPA : EPA're , s comment e reporth n to s entitled, "Dupont-Newport South Landfill Permeable Reactive Barrier Proposal," 5/18/01 . 325080-325080P . .
848. Explanation of Significant Differences, South Landfill, E.I. DuPont-Newport Superfund Site w CastlNe , e County, Delaware, 5/01. (This ESD replaces the remedy selected in the 1995 ESD). P. 325081-325121.
168 IV. REMOVAL CORRESPONDENCE
Memorandu Richar. Mr o . Guimondt mJ d , U.S. EPA, from Mr. Stanley L. Laskowski, U.S. EPA, re: Transmittal of a CERCLA Funding Request for a Removal Action, 4/22/93. P. 400001-400013. The following are attached:
a) an initial funding request; b) a letter regarding comments on the Dowtherm dat y NOAAb a ;
c) a memorandum regarding comments on the Dowtherm Spill;
a sampld) e location map/ Jame d Watean s r Streets, CIBA-GEIGY Seep Assessment.
169 V. COMMUNITY RELATIONS/CONGRESSIONAL CORRESPONDENCE/IMAGERY
1. U.S. EPA Fact Sheet, Du Pont-Newport Site, 2/90. P. 500001-500005.
2. U.S A Fac.EP t Sheet u Pont-NewporD , t Site, 4/90. P. 500006-500010.
3. Letter to Mr. William Toffel, U.S. EPA, from Ms. Katrina Celenza, Dynamac Corporation, re: Changes to the Community Relations Plan, 1/17/90. P. 500011- 500011. 4. Report: Community Relations Plan for Du Pont-Newport Site, prepared by Dynamac Corporation, 7/17/90. P. 500012-500039.
5. Cover sheet for a Non-Public Mailing List for the Du Pont-Newport Site, prepared by Dynamac Corporation, 7/17/91. P. 500040-300040.
6. U.S A Fac.EP t Sheet u Pont-NewporD , t Site, 8/90. P. 500041-500042.
7. Letter to Ms. Carrie Dietzel, U.S. EPA, from Ms. Katrina Celenza, Dynamac Corporation, re: Notes taken publie ath t c meeting, 10/5/90 . 500043-500047P . e Th . note e attachedar s .
8. Site photographs, 5/21/3 9/10/38- 7 500047a. P . - 500047e A cross-sectio. n diagrae sits th i e f o m attached.
9. Map, Relocated Delaware Rout 1 Thr14 eu Newport, 1/5/72. P. 500047f-500047f.
10. Map, Site Topograph d Tesan yt Boring, Test Pitd ,an Well Location Plan u Pont-NewportD , , Delaware, prepared by Woodward-Clyde Consultants, 3/3/88 500048. P . - 500048.
11. Press Release from U.S A Environmenta.EP l News entitled "U.S A IssueEP . s Consent Orde o E.It r .u Pond e d t Nemours and Company to Study the Du Pont-Newport Landfill," 8/29/88. P. 500049-500050.
170 12. Newspaper article entitle u Pon"D dt agree o wastet s - cleanup tests," The Morning News, 9/8/88. P. 500051-500051.
13. Newspaper article entitle Ponu "D dt agree wasteo t s - cleanup tests, e EveninTh " g Journal, 9/8/88. P. 500052-500052.
14. Site photographs, 9/23/8 d 9/26/88an 8 . 500053P . - 500062 A lis. t with explanation s attachedi s .
15. GerardLette. Mr o rt o Amador, U.S. EPA, from Paul Fikac, Jacobs Engineering Group Inc. : Transmitta,re l f photographo f activitieo su Pont-HollD e th t n a sRu y Plant, 10/17/88. P. 500063-500089. Photographs and negative e attachedar s .
16. Schematic Diagram of Du Pont-Newport Site, prepared by Woodward-Clyde Consultants, 6/28/89. P. 500090-500091. A project flowpat s attachedi h .
17. Du Pont Community Relations, Private Citizen's Boiler Plate Questionnaire, 2/90. P. 500092-500093.
18. . LeonarLetteMr o t rd Episcopo, Tow f Newporto n , Delaware, fro. BilMr ml Toffel, U.S. EPA: ,re Establishmen n informatioa f o t n repository, 2/2/90. P. 500094-500094.
19. Figure 1, EPA, Proposed Phase III Well Drilling Locations, Du Pont-Newport Site, prepared by Woodward- Clyde Consultants, 2/2/90. P. 500095-500109. The followin e attachedar g : a) Figure 2, Reported Groundwater Concentrations of Arsenic froe Shalloth m w Zone;
b) Figure 3, Reported Groundwater Concentrations of Arsenic froe Intermediatth m e Zone; c) Figur , Reporte4 e d Groundwater Concentrations of Barium froe Shalloth m w Zone;
d) Figure 5, Reported Groundwater Concentrations of Barium froe Intermediatth m e Zone;
e) Figur , Reporte6 e d Groundwater Concentrations of Cadmium froe Shalloth m w Zone;
171 f) Figur , Reporte7 e d Groundwater Concentration of Cadmium from the Intermediate Zone; g) Figure 8, Reported Groundwater Concentrations of Zinc froe Shalloth m w Zone;
h) Figur , Reporte9 e d Groundwater Concentrations of Zinc froe Intermediatth m e Zone;
i) Figur , Reporte10 e d Groundwater Concentration f Tetrachloroethyleno s e (PCE) from the Shallow Zone;
j) Figur , Reporte11 e d Groundwater Concentrations of Tetrachloroethylene (PCE) froe Intermediatth m e Zone;
k) Figure 12, Reported Groundwater Concentration f Trichloroethyleno s e (TCE) from the Intermediate Zone;
) 1 Figur , Reporte13 e d Groundwater Concentration Trichloroethylenf so e (TCE) froe Intermediatth m e Zone;
) m Figur , Mea15 en Concentratio f Parametero n s (August 198 7- Decembe r 1988), Intermediate Zone;
n) Figure 16, Mean Concentration of Parameters (August 198 7- Decembe r 1988), Deep Zone.
20. Record of communication to file from Mr. Randy Sturgeon, U.S. EPA, re: Establishment of the information repository for community relations purposes, 2/20/90. P. 500110-500110.
. Handwritte21 n notes : Interview,re s with residents, 2/28/90 . 500111-500112P . .
. Monitorin22 g Well Location Plan showin Auguse th g t 1987 shallow zone TCE concentrations, prepared by Woodward- Clyde Consultants, 3/2/90 . 500113-500126P . e Th . followin e attachedar g : a) Monitoring Well Location Plan showine th g December 1988 shallow zone TCE concentrations;
172 b) Monitoring Well Location Plan showing the August 1988 shallow zonE concentrationsPC e ;
c) Monitoring Well Location Plan showine th g December 1988 shallow zone PCE concentrations;
d) Monitoring Well Location Plan showing the August 1987 shallow zone cadmium concentrations;
e) Monitoring Well Location Plan showing the August 1987 intermediate zone cadmium concentrations;
f) Monitoring Well Location Plan showing the August 1987 deep zone cadmium concentrations;
g) Monitoring Well Location Plan showing the December 1988 shallow zone cadmium concentrations;
h) Monitoring Well Location Plan showing the December 1988 intermediate zone cadmium concentrations;
i) Monitoring Well Location Plan showine th g December 1988 deep zone cadmium concentrations;
j) Monitoring Well Location Plan showine th g August 1987 shallow zone zinc concentrations;
k) Monitoring Well Location Plan showine th g August 1987 intermediate deep zone zinc concentrations;
) 1 Monitoring Well Location Plan showine th g December 1988 shallow zone zinc concentrations;
m) Monitoring Well Location Plan showing the December 1988 intermediate zone zinc concentrations.
173 23. Letter to Mr. William W. Toffel, U.S. EPA, from Ms. Katrina A. Celenza, Dynamac Corporation, re: Scheduling of a community meeting for the Du Pont- Newport Site, 7/10/90. P. 500127-500128. A letter regarding the community meeting is attached. 24. Press Release from U.SA EnvironmentaEP . l Advisory entitled "EPo Holt A d Publi u PoncD Meetinte th n o g Newport Superfund Site," 9/10/90 . 500129-500129P . .
25. Handwritten memorandum to file from Mr. Randy Sturgeon, U.S. EPA, re: Public meeting on September 18, 1990, 9/26/90 500130-500131. P . .
26. Sign-in sheet from Du Pont-Newport public meeting, 9/20/90. P. 500132-500133.
27. Report: Site Analysis, Du Pont-Newport Site, Newport, Delaware, Volum prepare, 1 ee Bionetic Th y b d s Corporation, 2/91. P. 500134-500183. {* Volume 2 of this report contains two foot by three foot site photographs with plastic overlays. This report can be found at the U.S. EPA Region III Office in Philadelphia, PA.)
28. Sediment Quality Triads, prepared by Woodward-Clyde Consultants, 2/19/91 . 500184-500197P . . Five data tables o sittw ,e sediment chemistry analysesa d an , conceptual transport mode attachede ar l .
29. Handwritten routing and transmittal slip to Mr. Randy Sturgeon, U.S. EPA, froAnd. mMr y Sochanski, U.S. EPA, re: Telephone conversations with residents, 5/16/91. P. 500198-500203. Five telephone conversation records regarding discussions with residents about the use of their well attachede sar . u Pont-NewporD . 30 t sitp witema h handwritten comments, prepare Dynamay b d c Corporation, 7/1/91 . 500204P . - 500204.
. U.SA Fac31 EP . t u Pont-NewporD Sheet : re , t Superfund Site, Newport, New Castle County, Delaware, 8/91. P. 500205-500208.
32. U.S. EPA Fact Sheet, re: Du Pont-Newport Superfund Site, Newport, Delaware, 8/92. P. 500209-500212.
174 33. Newspaper article entitled "Newport TowA : n ni Transition," News Journal, (undated). P. 500213- 500213.
34. Transcrip f Publio t c Hearing u Pont-NewporD , t Superfund Site, prepare Wilcoy db Fetzer& x , Ltd., 12/2/92. P. 500214-500269.
35. Rand. LetteMr yo t r Sturgeon, U.S. EPA, fro. JamemMr s Buczala, Woodward-Clyde Consultants : Transmittare , l of Flood Insurance Rate Maps (FIRM) of the site, 11/16/92. P. 500270-500274. The following are attached:
a) Flood Insurance Rate Map, Community-Panel Number 105085 0045B, dated Septembe , 19864 r ;
b) Flood Insurance Rate Map, Community-Panel Number 105085 0030B, dated September 4, 1986;
c) Flood Insurance Rate Map, Community-Panel Number 105085 0040C, dated July 3, 1990;
d) Flood Insurance Rate Map, Community-Panel Number 105085 0025C, dated July 3, 1990.
. U.S36 A PresEP . s Release : Release re Propose, th f o e d Plan, 11/15/92 . 500275-500275P . .
37. Map, Residential Well Locations, Former Koppers Company, Inc., Newport Site, Newport, Delaware, prepare Woodward-Clydy b d e Consultants, 12/9/92. P. 500276-500276.
38. Report: Community Relations Plan, DuPont-Newport Superfund Site, prepare y U.Sb d . EPA, 8/97 . 500277P - 500324.
175 BIBLIOGRAPHY OF SITE SPECIFIC GUIDANCE DOCUMENTS
1. U.S. EPA Superfund LDR Guide #5, Determining when Land Disposal Restrictions (LDRs Applicable ar ) o CERCLt e A Response Actions, 7/89.
2. U.S A Superfun.EP R Guid LD , dDeterminin #7 e g when Land Disposal Restrictions (LDRs) are Relevant and Appropriat CERCLo t e A Response Actions, 12/89.
3. U.S. EPA CERCLA Compliance with Other Laws Manual, Overview of ARARs, Focus on ARAR Waivers, 12/89.
4. Memorandu e Directorth e Wasto th t m f eo s Management Divisions of Regions I, II, IV, V, VII, and VIII; the Directo e Emergencth f o rd Remedia an y l Response Division of Region II; the Directors of the Hazardous Waste Managemente Divisionth ; VI d f Regiono san I II s Director of the Toxic Waste Management Division of Region IX; and the Director of the Hazardous Waste Division of Region X, U.S. EPA, from Mr. Henry L. . BrucMr Longestd e an Diamond I II , , U.S. EPA: ,re Interim guidance on the establishment of soil lead cleanup level t Superfuna s d sites, 12/8/89.
5. Stabilization/Solidificatio f CERCLo n d RCRan A A Wastes, Physical Tests, Chemical Testing Procedures, Technology Screening d Fielan , d Activities, prepare y EPA/ORDb d , 5/89. EPA/625/6-89/022 A Guid6 .o Principat e l w LeveTreatLo d l an sThrea t Wastes, prepared by EPA/OSWER, 11/91. 9380.3-06FS29
176