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Category:LEGAL TRANSCRIPTS & ORDERS & PLEADINGS
MONTHYEARML20197J2871998-12-11011 December 1998 Initial Decision (Application for Senior Reactor Operator License).* Appeal of R Herring of NRC Denial of Application for SRO License Denied.With Certificate of Svc.Served on 981211 ML20151W5721998-09-11011 September 1998 NRC Staff Presentation in Support of Denial of Senior Reactor Operator License for Dl Herring.* Staff Decision to Fail Dl Herring on Category a of SRO Exam,Clearly Justified. Staff Denial of Herring SRO License Should Be Sustained ML20151W5941998-09-11011 September 1998 Affidavit of Cd Payne.* Affidavit Re NRC Staff Proposed Denial of Rl Herring Application for Senior Reactor Operator License for Use at Catawba Nuclear Station,Units 1 & 2 ML20151Y0601998-09-11011 September 1998 Affidavit of DC Payne.* Supports Denial of Application of Rl Herring for SRO License ML20151W6131998-09-0808 September 1998 Affidavit of Mn Leach in Support of NRC Staff Response to Rl Herring Written Presentation.* ML20151W6311998-09-0808 September 1998 Affidavit of ET Beadle.* Affidavit Relates to Denial of Senior Reactor Operator License Application for Rl Herring. with Certificate of Svc ML20237B6931998-08-13013 August 1998 Rl Herring (Denial of Operator License for Plant).* Rl Herring Submitted Written Presentation Arguments,Data, Info Matl & Other Supporting Evidence,Per Presiding Officer 980630 Order & 10CFR2.1233.W/one Oversize Drawing ML20237A3831998-08-12012 August 1998 NRC Staff Request for Extension of Time to File Response to Rl Herring Written Presentation.* Staff Respectfully Requests Motion for Extension of Time of 2 Wks to Respond to Herring Presentation Be Granted.W/Certificate of Svc ML20237B5571998-08-12012 August 1998 NRC Staff Request for Extension of Time to File Response to Rl Herring Written Presentation.* Granted by C Bechhoefer on 980818.W/Certificate of Svc.Served on 980818 ML20236T8511998-07-21021 July 1998 Specification of Claims.* Rl Herring Claims That Answer Given on Exam Was Correct When TSs Are Considered & When Design Basis Document Considered in Conjunction W/Duke Power Nuclear Sys Div.W/Certificate of Svc.Served on 980727 ML20236F5391998-06-30030 June 1998 Memorandum & Order (Hearing File & Spec of Claim).* Orders That Brief Spec of Claims Should Be Filed by Herring,Telling Why He Believes Staff Erred in Grading Exam.Staff Must Furnish Hearing File.W/Certificate of Svc.Served on 980630 ML20236F5631998-06-30030 June 1998 Notice of Hearing.* Presiding Officer Has Granted Request of Rl Herring for Hearing on NRC Denial of Application for Operator License for Plant.W/Certificate of Svc.Served on 980630 ML20149K8221997-07-29029 July 1997 Exemption from Requirements of 10CFR70.24, Criticality Accident Requirements. Exemption Granted TXX-9522, Comment Opposing Proposed GL on Testing of safety-related Logic Circuits.Believes That Complete Technical Review of All Surveillance Procedures Would Be Expensive & Unnecessary Expenditure of Licensee Resources1995-08-26026 August 1995 Comment Opposing Proposed GL on Testing of safety-related Logic Circuits.Believes That Complete Technical Review of All Surveillance Procedures Would Be Expensive & Unnecessary Expenditure of Licensee Resources ML20065P4491994-04-21021 April 1994 Comment Opposing Proposed Rule 10CFR50.55 Recommendation to Incorporate Proposed Rule to Adopt ASME Code Subsections IWE & Iwl ML20044G7371993-05-25025 May 1993 Comment on Proposed Rules 10CFR170 & 171, FY91 & 92 Proposed Rule Implementing Us Court of Appeals Decision & Rev of Fee Schedules;100% Fee Recovery,FY93. Opposes Rule ML20101R5931992-07-0606 July 1992 Comment on Proposed Rule 10CFR50 Re Loss of All Alternating Current Power & Draft Reg Guide 1.9,task DG-1021.Opposes Rule ML20091Q8661992-01-31031 January 1992 Comment Opposing Draft NUREG-1022,Rev 1, Event Reporting Sys,10CFR50.72 & 50.73,Clarification of NRC Sys & Guidelines for Reporting ML20087F7471992-01-15015 January 1992 Comment Opposing Rev 1 of NUREG-1022, Event Reporting Sys ML20246J6571989-08-31031 August 1989 Order Imposing Civil Monetary Penalty on Licensee in Amount of $75,000 for Violations Noted in Insp on 881127-890204. Payment of Civil Penalty Requested within 30 Days of Order Date.Evaluations & Conclusions Encl ML20247J8921989-08-31031 August 1989 Order Imposing Civil Monetary Penalty in Amount of $75,000, Based on Violations Noted in Insp on 881127-890204,including Operation in Modes 1-4 W/One Independent Containment Air Return & Hydrogen Skimmer Sys Inoperable for 42 Days ML20205N1471988-10-20020 October 1988 Comment on Petition for Rulemaking PRM-50-50 Re Provision That Authorizes Nuclear Power Plant Operators to Deviate from Tech Specs During Emergency.Request by C Young Should Be Denied ML20234D2821987-09-15015 September 1987 Joint Intervenors Emergency Motion to Continue Hearing for 2 Wks & for Immediate Prehearing Conference.* Urges That Hearing Re Offsite Emergency Planning at Plant,Scheduled for 870928,be Continued Until 871013.Certificate of Svc Encl ML20198C5771986-05-14014 May 1986 Transcript of 860514 Discussion/Possible Vote on Full Power OL for Catawba 2 in Washington,Dc.Pp 1-86.Viewgraphs Encl ML20203N4561986-02-20020 February 1986 Unexecuted Amend 6 to Indemnity Agreement B-100,replacing Item 3 of Attachment to Agreement W/Listed Info ML20151P2231985-12-31031 December 1985 Order Extending Time Until 860110 for Commissioners to Review ALAB-825.Served on 851231 ML20136H7231985-11-21021 November 1985 Decision ALAB-825,affirming Remaining Part of ASLB OL Authorization,Permitting Applicant to Receive & Store Spent Fuel Generated at Duke Power Co Oconee & McGuire Nuclear Power Facilities.Served on 851121 ML20138B3611985-10-11011 October 1985 Order Extending Time Until 851025 for Commission to Act to Review ALAB-813.Served on 851011 ML20137W4311985-10-0202 October 1985 Order Extending Time Until 851011 for Commission to Act to Review ALAB-813.Served on 851003 ML20134N5761985-09-0404 September 1985 Order Extending Time Until 851004 for Commission to Act to Review ALAB-813.Served on 850904 ML20126M2091985-07-30030 July 1985 Order Amending First Paragraph of Footnote 126 Re Need for Power & Financial Qualifications in ALAB-813 . Served on 850731 ML20126K7701985-07-26026 July 1985 Order Extending Time Until 850730 for Commission to Act to Review Director'S Decision DD-85-9.Served on 850729 ML20129C2351985-07-26026 July 1985 Decision ALAB-813 Affirming Aslab Authorization of Issuance of Full Power Ol,Except Insofar as Receipt & Storage Onsite of Spent Fuel Generated at Other Facilities.Served on 850729 ML20129K1651985-07-19019 July 1985 Order Extending Time Until 850726 for Commission to Act to Review Director'S Decision DD-85-9.Served on 850719 ML20129H9361985-07-10010 July 1985 Unexecuted Amend 5 to Indemnity Agreement B-100,changing Items 1 & 3 of Attachment ML20128K2171985-07-0808 July 1985 Order Extending Time Until 850719 for Commission to Act to Review Director'S Decision DD-85-9.Served on 850709 ML20127P0991985-06-28028 June 1985 Transcript of 850628 Supplemental Oral Argument in Bethesda, Md.Pg 99-169 ML20133C5201985-06-26026 June 1985 Undated Testimony of PM Reep Re Welding Inspector Concerns. Rept of Verbal Harassment Encl ML20127K7171985-06-24024 June 1985 Order Extending Time Until 850709 for Commission to Act to Review Director'S Decision DD-85-9 ML20126K6391985-06-17017 June 1985 Order Advising That Counsel Be Familiar W/Content of Commission Request for Public Comment on Decision to Exercise Discretionary Price-Anderson Act Authority to Extend Govt Indemnity to Spent.... Served on 850618 ML20126B8101985-06-13013 June 1985 Order Scheduling Supplemental Oral Argument on Pending Appeals on 850628 in Bethesda,Md Re Public Notice of Hearing Concerning Use of Facility for Receipt & Storage of Spent Fuel from Oconee & Mcguire.Served on 850613 ML20126E4601985-06-13013 June 1985 Notice of Supplemental Oral Argument on Pending Appeals on 850628 in Bethesda,Md.Served on 850613 ML20125B4251985-06-0707 June 1985 Responds to Aslab 850603 Order Requesting Response to NRC 850529 Filing Re Whether Notice of Proposal to Use Catawba to Store Oconee & McGuire Spent Fuel Discretionary or Required.Certificate of Svc Encl ML20126A7631985-06-0404 June 1985 Director'S Decision DD-85-9 Granting & Denying in Part Palmetto Alliance Request for Mod,Suspension or Revocation of CPs for Facilities Due to Harassment & Intimidation of QC Inspectors ML20129A6381985-06-0303 June 1985 Order Allowing Applicant to File & Serve Response to NRC 850529 Assertion Re Storage of Spent Fuel Generated at Another Facility Constituting Use of Commercial Utilization Facility No Later than 850607.Served on 850604 ML20128P0001985-05-29029 May 1985 NRC Views on Whether Notice of Proposal to Use Facility to Store Oconee & McGuire Spent Fuel Required or Discretionary. Certificate of Svc Encl ML20128P1031985-05-29029 May 1985 Memorandum Responding to Palmetto Alliance/Carolina Environ Study Group & Staff 850517 Memoranda Asserting That Fr Notice Not Reasonably Calculated to Inform of Requests Re Spent Fuel.Certificate of Svc Encl ML20127K0231985-05-20020 May 1985 Order Extending Time Until 850529 for Aslab to Act to File & Svc Reply Memoranda.Served on 850521 ML20127G2281985-05-17017 May 1985 Memorandum Responding to 850425 Aslab Order Addressing Four Questions Re Receipt & Storage of Spent Fuel.Certificate of Svc Encl ML20127H0041985-05-17017 May 1985 Response to Aslab Questions on Adequacy of Notice of Proposed Use of Facility to Store Spent Fuel from Oconee & McGuire Facilities.Aslab Has No Jurisdiction Over Proposal. Certificate of Svc Encl 1998-09-08
[Table view] Category:TRANSCRIPTS
MONTHYEARML20198C5771986-05-14014 May 1986 Transcript of 860514 Discussion/Possible Vote on Full Power OL for Catawba 2 in Washington,Dc.Pp 1-86.Viewgraphs Encl ML20127P0991985-06-28028 June 1985 Transcript of 850628 Supplemental Oral Argument in Bethesda, Md.Pg 99-169 ML20133C5201985-06-26026 June 1985 Undated Testimony of PM Reep Re Welding Inspector Concerns. Rept of Verbal Harassment Encl ML20107L6391984-11-0909 November 1984 Proposed Transcript Corrections of 841009-12 Hearing Sessions.Requests Issuance of ASLB Order Directing That Evidentiary Record Be Amended to Incorporate Changes. Certificate of Svc Encl ML20095G8141984-08-18018 August 1984 Testimony of Gw Hallman,Rp Muschick,Sr Ward,Ja Gorman, CA Wells,La Swanger,Sk Chen,Jo Barbour,Jm Curtis & Rc Gamberg Re Problems Encountered in Diesel Generator Qualification Program.Related Correspondence ML20093N6081984-07-30030 July 1984 Errata to Transcript of 840501-0608 Emergency Planning Hearing,Correcting Matl Errors.Certificate of Svc Encl ML20091G6851984-05-30030 May 1984 Revised Page 6 to Testimony of Eh Harris & Jt Pugh on Emergency Planning Contention 8 ML20083N4791984-04-16016 April 1984 Testimony of SD Coleman,Me Bolch,Jt Pugh,Pr Lunsford,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 18.Related Correspondence ML20083N4571984-04-16016 April 1984 Testimony of RM Glover,Jt Pugh,Pr Lunsford,Wm Mcswain, Be Phillips,Lw Broome,Wm Kulash & Ps Thomas Re Emergency Planning Contentions 14 & 15.Related Correspondence ML20083N4311984-04-16016 April 1984 Testimony of Rf Edmonds,Ma Casper,Rm Glover,Te Potter, Wm Kulash & Lw Broome Re Emergency Planning Contention 11. Related Correspondence ML20083N4071984-04-16016 April 1984 Testimony of RM Glover,Mr Bassiouni,Jt Pugh,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 9.Related Correspondence ML20083N3791984-04-16016 April 1984 Testimony of SD Coleman,Jt Pugh,Eh Harris,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 8.Related Correspondence ML20083N3611984-04-16016 April 1984 Testimony of RM Glover,D Brown,Jt Pugh,Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 6.Related Correspondence ML20083N3421984-04-16016 April 1984 Testimony of Je Neves,Jt Pugh,J Gregory,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome,D Johnson & P Needham Re Emergency Planning Contention 3.Related Correspondence ML20083N3101984-04-16016 April 1984 Testimony of RM Glover,Pf Carter,Ml Birch,Sv Duckworth, Jt Pugh,Pr Lunsford,Wm Mcswain,Sl Finklea,Be Phillips, Lw Broome & Ps Thomas Re Emergency Planning Contentions 1 & 7.Related Correspondence ML20083N0811984-04-16016 April 1984 Testimony of T Urbanik Re Evacuation Time Estimate Studies ML20083M1081984-04-16016 April 1984 Testimony of Sc Sholly on Emergency Planning Contention 11 Re Plume Exposure Pathway Zone.Certificate of Svc Encl. Related Correspondence ML20083Q5711984-04-16016 April 1984 Testimony of FEMA on Emergency Planning Contentions ML20083Q4911984-04-16016 April 1984 Prefiled Testimony of Jl Riley,R Twerry,Pl Rutledge, AB Andrews & RW Pittard on Emergency Planning Contentions. Certificate of Svc Encl.Related Correspondence ML20133K6941984-04-12012 April 1984 Transcript of Investigative Interview of Lr Davison on 840412 Re Allegations Raised During ASLB Hearings.Related Info Encl ML20133K6771984-04-12012 April 1984 Transcript of Investigative Interview of CR Baldwin on 840412 Re Allegations That Arose During ASLB Hearings ML20087N5941984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegation of Prior Notification of NRC Insps ML20087N6091984-02-22022 February 1984 Testimony of Th Mullinax Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector.Related Info Encl ML20087N6051984-02-22022 February 1984 Testimony of L Harris Re Langley Allegation Concerning Prenotification of NRC Insp ML20087N6021984-02-22022 February 1984 Testimony of RA Morgan Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5991984-02-22022 February 1984 Testimony of Dl Freeze Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5881984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector L Harris ML20087N5821984-02-22022 February 1984 Testimony of Je Cavender,We Rogers,Dh Llewellyn & Lr Barnes Re in Camera Witness Allegations Concerning Accuracy of Radiographs ML20087N5771984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Je Cavender, Aw Roy & Dh Llewellyn Concerning in Camera Witness Allegations Re Welding Matl ML20087N5741984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Eg Mckenzie, Kr Webber,Jc Shropshire,Hr Barker,Dh Llewellyn & Jr Wilson Re in Camera Witness Allegations Concerning Foreman Override ML20087N5651984-02-22022 February 1984 Testimony of Jm Mcconaghy,Lr Barner,Jp Akers,Je Cavender, Lw Rudasill,Jc Shropshire,Rp Ruth & Dh Llewellyn Re in Camera Witness Allegations Concerning Laminations ML20080C6871984-02-0303 February 1984 Transcript of 840203 Telephone Conference in Washington,Dc. Pp 12,422-12,505 ML20079S4601984-01-30030 January 1984 Transcript of 840130 Hearing in Charlotte,Nc.Pp 11,922- 12,259 ML20133C6551984-01-0303 January 1984 Limited Appearance Statement of Bp Garde Re Quality of Const at Plant ML20082R4571983-12-0808 December 1983 Corrected Testimony of J Purvis on Behalf of Carolina Environ Study Group Re Meteorology.Affirmation of Svc Encl. Related Correspondence ML20082P8371983-12-0202 December 1983 Testimony of J Purvis Re Meteorology of Region ML20082N4651983-12-0202 December 1983 Testimony of Ma Casper Re Palmetto Alliance & Carolina Environ Study Group Contention 17.Certificate of Svc Encl. Related Correspondence ML20078P1711983-10-31031 October 1983 Testimony of DG Beam Re Instances of Conflict Between QC & Craft Personnel.Related Correspondence.Certificate of Svc Encl ML20078P1571983-10-31031 October 1983 Testimony of Rl Dick Re Const Dept Involvement in Welding Inspector Concerns.Related Correspondence ML20078P1501983-10-31031 October 1983 Testimony of Jc Rogers Re Welding Inspector Concerns. Related Correspondence ML20085K8511983-10-17017 October 1983 Testimony of WO Henry Re Quality or Safety Concerns Expressed by Welding Inspectors.Certificate of Svc Encl. Related Correspondence ML20085K8331983-10-17017 October 1983 Testimony of Wh Bradley Re Quality or Safety Concerns Expressed by Welding Inspectors.Related Correspondence ML20080P1291983-10-0404 October 1983 Testimony of TR Mager & Ta Meyer Re Carolina Environ Study Group & Palmetto Alliance Contention 18/44.Ref Temp Will Not Exhibit More Rapid Increase than Calculations Show Due to Radiation Effects on Vessel.W/Certificate of Svc ML20078F9671983-10-0303 October 1983 Testimony of Jl Riley Re Contention 18 Concerning Unanticipated Rapid Embrittlement.Affirmation of Svc Encl. Related Correspondence ML20133C5051983-09-24024 September 1983 Testimony of Lr Davison Re Welding Inspector Concerns ML20078B9101983-09-23023 September 1983 Testimony of WR Mcafee Supporting Palmetto Alliance Contention 6 Re Systematic QA Program Deficiencies Affecting Plant Integrity ML20078B9311983-09-23023 September 1983 Testimony of Nr Hoopingarner Re Worker Safety & Mgt Negligence in Following Const Procedures ML20133C4911983-09-23023 September 1983 Testimony of D Bentley Re Welding Inspector Concerns ML20133C4591983-09-22022 September 1983 Testimony of VC Godfrey Re Welding Inspector Concerns. Related Documentation Encl ML20133C5731983-09-22022 September 1983 Testimony of Wh Burr Re Welding Inspector Concerns 1986-05-14
[Table view] Category:DEPOSITIONS
MONTHYEARML20198C5771986-05-14014 May 1986 Transcript of 860514 Discussion/Possible Vote on Full Power OL for Catawba 2 in Washington,Dc.Pp 1-86.Viewgraphs Encl ML20127P0991985-06-28028 June 1985 Transcript of 850628 Supplemental Oral Argument in Bethesda, Md.Pg 99-169 ML20133C5201985-06-26026 June 1985 Undated Testimony of PM Reep Re Welding Inspector Concerns. Rept of Verbal Harassment Encl ML20107L6391984-11-0909 November 1984 Proposed Transcript Corrections of 841009-12 Hearing Sessions.Requests Issuance of ASLB Order Directing That Evidentiary Record Be Amended to Incorporate Changes. Certificate of Svc Encl ML20095G8141984-08-18018 August 1984 Testimony of Gw Hallman,Rp Muschick,Sr Ward,Ja Gorman, CA Wells,La Swanger,Sk Chen,Jo Barbour,Jm Curtis & Rc Gamberg Re Problems Encountered in Diesel Generator Qualification Program.Related Correspondence ML20093N6081984-07-30030 July 1984 Errata to Transcript of 840501-0608 Emergency Planning Hearing,Correcting Matl Errors.Certificate of Svc Encl ML20091G6851984-05-30030 May 1984 Revised Page 6 to Testimony of Eh Harris & Jt Pugh on Emergency Planning Contention 8 ML20083N4791984-04-16016 April 1984 Testimony of SD Coleman,Me Bolch,Jt Pugh,Pr Lunsford,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 18.Related Correspondence ML20083N4571984-04-16016 April 1984 Testimony of RM Glover,Jt Pugh,Pr Lunsford,Wm Mcswain, Be Phillips,Lw Broome,Wm Kulash & Ps Thomas Re Emergency Planning Contentions 14 & 15.Related Correspondence ML20083N4311984-04-16016 April 1984 Testimony of Rf Edmonds,Ma Casper,Rm Glover,Te Potter, Wm Kulash & Lw Broome Re Emergency Planning Contention 11. Related Correspondence ML20083N4071984-04-16016 April 1984 Testimony of RM Glover,Mr Bassiouni,Jt Pugh,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 9.Related Correspondence ML20083N3791984-04-16016 April 1984 Testimony of SD Coleman,Jt Pugh,Eh Harris,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 8.Related Correspondence ML20083N3611984-04-16016 April 1984 Testimony of RM Glover,D Brown,Jt Pugh,Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 6.Related Correspondence ML20083N3421984-04-16016 April 1984 Testimony of Je Neves,Jt Pugh,J Gregory,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome,D Johnson & P Needham Re Emergency Planning Contention 3.Related Correspondence ML20083N3101984-04-16016 April 1984 Testimony of RM Glover,Pf Carter,Ml Birch,Sv Duckworth, Jt Pugh,Pr Lunsford,Wm Mcswain,Sl Finklea,Be Phillips, Lw Broome & Ps Thomas Re Emergency Planning Contentions 1 & 7.Related Correspondence ML20083N0811984-04-16016 April 1984 Testimony of T Urbanik Re Evacuation Time Estimate Studies ML20083M1081984-04-16016 April 1984 Testimony of Sc Sholly on Emergency Planning Contention 11 Re Plume Exposure Pathway Zone.Certificate of Svc Encl. Related Correspondence ML20083Q5711984-04-16016 April 1984 Testimony of FEMA on Emergency Planning Contentions ML20083Q4911984-04-16016 April 1984 Prefiled Testimony of Jl Riley,R Twerry,Pl Rutledge, AB Andrews & RW Pittard on Emergency Planning Contentions. Certificate of Svc Encl.Related Correspondence ML20133K6941984-04-12012 April 1984 Transcript of Investigative Interview of Lr Davison on 840412 Re Allegations Raised During ASLB Hearings.Related Info Encl ML20133K6771984-04-12012 April 1984 Transcript of Investigative Interview of CR Baldwin on 840412 Re Allegations That Arose During ASLB Hearings ML20087N5941984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegation of Prior Notification of NRC Insps ML20087N6091984-02-22022 February 1984 Testimony of Th Mullinax Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector.Related Info Encl ML20087N6051984-02-22022 February 1984 Testimony of L Harris Re Langley Allegation Concerning Prenotification of NRC Insp ML20087N6021984-02-22022 February 1984 Testimony of RA Morgan Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5991984-02-22022 February 1984 Testimony of Dl Freeze Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5881984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector L Harris ML20087N5821984-02-22022 February 1984 Testimony of Je Cavender,We Rogers,Dh Llewellyn & Lr Barnes Re in Camera Witness Allegations Concerning Accuracy of Radiographs ML20087N5771984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Je Cavender, Aw Roy & Dh Llewellyn Concerning in Camera Witness Allegations Re Welding Matl ML20087N5741984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Eg Mckenzie, Kr Webber,Jc Shropshire,Hr Barker,Dh Llewellyn & Jr Wilson Re in Camera Witness Allegations Concerning Foreman Override ML20087N5651984-02-22022 February 1984 Testimony of Jm Mcconaghy,Lr Barner,Jp Akers,Je Cavender, Lw Rudasill,Jc Shropshire,Rp Ruth & Dh Llewellyn Re in Camera Witness Allegations Concerning Laminations ML20080C6871984-02-0303 February 1984 Transcript of 840203 Telephone Conference in Washington,Dc. Pp 12,422-12,505 ML20079S4601984-01-30030 January 1984 Transcript of 840130 Hearing in Charlotte,Nc.Pp 11,922- 12,259 ML20133C6551984-01-0303 January 1984 Limited Appearance Statement of Bp Garde Re Quality of Const at Plant ML20082R4571983-12-0808 December 1983 Corrected Testimony of J Purvis on Behalf of Carolina Environ Study Group Re Meteorology.Affirmation of Svc Encl. Related Correspondence ML20082P8371983-12-0202 December 1983 Testimony of J Purvis Re Meteorology of Region ML20082N4651983-12-0202 December 1983 Testimony of Ma Casper Re Palmetto Alliance & Carolina Environ Study Group Contention 17.Certificate of Svc Encl. Related Correspondence ML20078P1711983-10-31031 October 1983 Testimony of DG Beam Re Instances of Conflict Between QC & Craft Personnel.Related Correspondence.Certificate of Svc Encl ML20078P1571983-10-31031 October 1983 Testimony of Rl Dick Re Const Dept Involvement in Welding Inspector Concerns.Related Correspondence ML20078P1501983-10-31031 October 1983 Testimony of Jc Rogers Re Welding Inspector Concerns. Related Correspondence ML20085K8511983-10-17017 October 1983 Testimony of WO Henry Re Quality or Safety Concerns Expressed by Welding Inspectors.Certificate of Svc Encl. Related Correspondence ML20085K8331983-10-17017 October 1983 Testimony of Wh Bradley Re Quality or Safety Concerns Expressed by Welding Inspectors.Related Correspondence ML20080P1291983-10-0404 October 1983 Testimony of TR Mager & Ta Meyer Re Carolina Environ Study Group & Palmetto Alliance Contention 18/44.Ref Temp Will Not Exhibit More Rapid Increase than Calculations Show Due to Radiation Effects on Vessel.W/Certificate of Svc ML20078F9671983-10-0303 October 1983 Testimony of Jl Riley Re Contention 18 Concerning Unanticipated Rapid Embrittlement.Affirmation of Svc Encl. Related Correspondence ML20133C5051983-09-24024 September 1983 Testimony of Lr Davison Re Welding Inspector Concerns ML20078B9101983-09-23023 September 1983 Testimony of WR Mcafee Supporting Palmetto Alliance Contention 6 Re Systematic QA Program Deficiencies Affecting Plant Integrity ML20078B9311983-09-23023 September 1983 Testimony of Nr Hoopingarner Re Worker Safety & Mgt Negligence in Following Const Procedures ML20133C4911983-09-23023 September 1983 Testimony of D Bentley Re Welding Inspector Concerns ML20133C4591983-09-22022 September 1983 Testimony of VC Godfrey Re Welding Inspector Concerns. Related Documentation Encl ML20133C5731983-09-22022 September 1983 Testimony of Wh Burr Re Welding Inspector Concerns 1986-05-14
[Table view] Category:NARRATIVE TESTIMONY
MONTHYEARML20198C5771986-05-14014 May 1986 Transcript of 860514 Discussion/Possible Vote on Full Power OL for Catawba 2 in Washington,Dc.Pp 1-86.Viewgraphs Encl ML20127P0991985-06-28028 June 1985 Transcript of 850628 Supplemental Oral Argument in Bethesda, Md.Pg 99-169 ML20133C5201985-06-26026 June 1985 Undated Testimony of PM Reep Re Welding Inspector Concerns. Rept of Verbal Harassment Encl ML20107L6391984-11-0909 November 1984 Proposed Transcript Corrections of 841009-12 Hearing Sessions.Requests Issuance of ASLB Order Directing That Evidentiary Record Be Amended to Incorporate Changes. Certificate of Svc Encl ML20095G8141984-08-18018 August 1984 Testimony of Gw Hallman,Rp Muschick,Sr Ward,Ja Gorman, CA Wells,La Swanger,Sk Chen,Jo Barbour,Jm Curtis & Rc Gamberg Re Problems Encountered in Diesel Generator Qualification Program.Related Correspondence ML20093N6081984-07-30030 July 1984 Errata to Transcript of 840501-0608 Emergency Planning Hearing,Correcting Matl Errors.Certificate of Svc Encl ML20091G6851984-05-30030 May 1984 Revised Page 6 to Testimony of Eh Harris & Jt Pugh on Emergency Planning Contention 8 ML20083N4791984-04-16016 April 1984 Testimony of SD Coleman,Me Bolch,Jt Pugh,Pr Lunsford,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 18.Related Correspondence ML20083N4571984-04-16016 April 1984 Testimony of RM Glover,Jt Pugh,Pr Lunsford,Wm Mcswain, Be Phillips,Lw Broome,Wm Kulash & Ps Thomas Re Emergency Planning Contentions 14 & 15.Related Correspondence ML20083N4311984-04-16016 April 1984 Testimony of Rf Edmonds,Ma Casper,Rm Glover,Te Potter, Wm Kulash & Lw Broome Re Emergency Planning Contention 11. Related Correspondence ML20083N4071984-04-16016 April 1984 Testimony of RM Glover,Mr Bassiouni,Jt Pugh,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 9.Related Correspondence ML20083N3791984-04-16016 April 1984 Testimony of SD Coleman,Jt Pugh,Eh Harris,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 8.Related Correspondence ML20083N3611984-04-16016 April 1984 Testimony of RM Glover,D Brown,Jt Pugh,Wm Mcswain,Be Phillips,Lw Broome & Ps Thomas Re Emergency Planning Contention 6.Related Correspondence ML20083N3421984-04-16016 April 1984 Testimony of Je Neves,Jt Pugh,J Gregory,Pr Lunsford, Wm Mcswain,Be Phillips,Lw Broome,D Johnson & P Needham Re Emergency Planning Contention 3.Related Correspondence ML20083N3101984-04-16016 April 1984 Testimony of RM Glover,Pf Carter,Ml Birch,Sv Duckworth, Jt Pugh,Pr Lunsford,Wm Mcswain,Sl Finklea,Be Phillips, Lw Broome & Ps Thomas Re Emergency Planning Contentions 1 & 7.Related Correspondence ML20083N0811984-04-16016 April 1984 Testimony of T Urbanik Re Evacuation Time Estimate Studies ML20083M1081984-04-16016 April 1984 Testimony of Sc Sholly on Emergency Planning Contention 11 Re Plume Exposure Pathway Zone.Certificate of Svc Encl. Related Correspondence ML20083Q5711984-04-16016 April 1984 Testimony of FEMA on Emergency Planning Contentions ML20083Q4911984-04-16016 April 1984 Prefiled Testimony of Jl Riley,R Twerry,Pl Rutledge, AB Andrews & RW Pittard on Emergency Planning Contentions. Certificate of Svc Encl.Related Correspondence ML20133K6941984-04-12012 April 1984 Transcript of Investigative Interview of Lr Davison on 840412 Re Allegations Raised During ASLB Hearings.Related Info Encl ML20133K6771984-04-12012 April 1984 Transcript of Investigative Interview of CR Baldwin on 840412 Re Allegations That Arose During ASLB Hearings ML20087N5941984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegation of Prior Notification of NRC Insps ML20087N6091984-02-22022 February 1984 Testimony of Th Mullinax Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector.Related Info Encl ML20087N6051984-02-22022 February 1984 Testimony of L Harris Re Langley Allegation Concerning Prenotification of NRC Insp ML20087N6021984-02-22022 February 1984 Testimony of RA Morgan Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5991984-02-22022 February 1984 Testimony of Dl Freeze Concerning Langley Allegation Re Prior Notification of NRC Insp ML20087N5881984-02-22022 February 1984 Testimony of Lr Davison Re Langley Allegations Pertaining to Alleged Harassment of Welding Inspector L Harris ML20087N5821984-02-22022 February 1984 Testimony of Je Cavender,We Rogers,Dh Llewellyn & Lr Barnes Re in Camera Witness Allegations Concerning Accuracy of Radiographs ML20087N5771984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Je Cavender, Aw Roy & Dh Llewellyn Concerning in Camera Witness Allegations Re Welding Matl ML20087N5741984-02-22022 February 1984 Testimony of WE Rogers,Lr Barnes,Lw Rudasill,Eg Mckenzie, Kr Webber,Jc Shropshire,Hr Barker,Dh Llewellyn & Jr Wilson Re in Camera Witness Allegations Concerning Foreman Override ML20087N5651984-02-22022 February 1984 Testimony of Jm Mcconaghy,Lr Barner,Jp Akers,Je Cavender, Lw Rudasill,Jc Shropshire,Rp Ruth & Dh Llewellyn Re in Camera Witness Allegations Concerning Laminations ML20080C6871984-02-0303 February 1984 Transcript of 840203 Telephone Conference in Washington,Dc. Pp 12,422-12,505 ML20079S4601984-01-30030 January 1984 Transcript of 840130 Hearing in Charlotte,Nc.Pp 11,922- 12,259 ML20133C6551984-01-0303 January 1984 Limited Appearance Statement of Bp Garde Re Quality of Const at Plant ML20082R4571983-12-0808 December 1983 Corrected Testimony of J Purvis on Behalf of Carolina Environ Study Group Re Meteorology.Affirmation of Svc Encl. Related Correspondence ML20082P8371983-12-0202 December 1983 Testimony of J Purvis Re Meteorology of Region ML20082N4651983-12-0202 December 1983 Testimony of Ma Casper Re Palmetto Alliance & Carolina Environ Study Group Contention 17.Certificate of Svc Encl. Related Correspondence ML20078P1711983-10-31031 October 1983 Testimony of DG Beam Re Instances of Conflict Between QC & Craft Personnel.Related Correspondence.Certificate of Svc Encl ML20078P1571983-10-31031 October 1983 Testimony of Rl Dick Re Const Dept Involvement in Welding Inspector Concerns.Related Correspondence ML20078P1501983-10-31031 October 1983 Testimony of Jc Rogers Re Welding Inspector Concerns. Related Correspondence ML20085K8511983-10-17017 October 1983 Testimony of WO Henry Re Quality or Safety Concerns Expressed by Welding Inspectors.Certificate of Svc Encl. Related Correspondence ML20085K8331983-10-17017 October 1983 Testimony of Wh Bradley Re Quality or Safety Concerns Expressed by Welding Inspectors.Related Correspondence ML20080P1291983-10-0404 October 1983 Testimony of TR Mager & Ta Meyer Re Carolina Environ Study Group & Palmetto Alliance Contention 18/44.Ref Temp Will Not Exhibit More Rapid Increase than Calculations Show Due to Radiation Effects on Vessel.W/Certificate of Svc ML20078F9671983-10-0303 October 1983 Testimony of Jl Riley Re Contention 18 Concerning Unanticipated Rapid Embrittlement.Affirmation of Svc Encl. Related Correspondence ML20133C5051983-09-24024 September 1983 Testimony of Lr Davison Re Welding Inspector Concerns ML20078B9101983-09-23023 September 1983 Testimony of WR Mcafee Supporting Palmetto Alliance Contention 6 Re Systematic QA Program Deficiencies Affecting Plant Integrity ML20078B9311983-09-23023 September 1983 Testimony of Nr Hoopingarner Re Worker Safety & Mgt Negligence in Following Const Procedures ML20133C4911983-09-23023 September 1983 Testimony of D Bentley Re Welding Inspector Concerns ML20133C4591983-09-22022 September 1983 Testimony of VC Godfrey Re Welding Inspector Concerns. Related Documentation Encl ML20133C5731983-09-22022 September 1983 Testimony of Wh Burr Re Welding Inspector Concerns 1986-05-14
[Table view] |
Text
__
UNITED STATES OF AMERICA !
NUCLEAR REGTTLATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD i l
In the Matter of )
)
DUKE POWER COMEANY, et. al. ) Docket Nos. 50-413
) 50-414 (Catawba Nuclear Station, )
Units 1 and 2) )
- . . - a .
DIRECT TESTIMONY OF JOHN PURVIS ON BEHALF OF CESG Please state your name and business address.
John Purvis, Department of Natural Resources, State of South Carolina, 3803 Forest Drive, Columbia, South Carolina.
What is your position?
I am State C11matologist.
Do you have experience as a meteorologist? '
Yes. I was director of inversion studies for the United States Weather Bureau in Columbia, South Carol na.
Are you acquainted with the meteorology of this region?
4 .
Yes. ,
How would you characterize it?
In the context of the relationship of the Catawba nuclear station j to the City of Charlotte: The Catawba plant is precisely 17.6 miles
- directly southwest from the intersection of Trade and Tryon Streets,
! the center of the business section of Charlotte. The closest approach to the plant is a distance of 9 7 miles from the city limit in the 22 sector to the northeast of the plant... The prevailing winds are generally from a southwesterly direction. There is an unusually high incidence of atmospheric inversions. There is also more than average rainfall in Charlotte.
What is the incidence of winds from Catawba over the City of Charlotte?
. 8312090201 831202 i PDR ADOCK 05000413 0 PDR
The data are somewhat limited but they are fairly consistent.
Based on observation made by Duke at the plant ' site at an elevation (
of 30 feet, June 30, 1971 to June 30, 197M wind from SW has a t probability of occurrence of 20 7%, from WSW of 8.7% and SSW of 5.6%. }
These winds carry over Charlotte. The total probability is 35.0%. [
If the wind blew at random, the probability would be 18.8%. This is f significantly directional. It is confirmed by data rpported by i Duke for the period 1976-1977 From the data in Table ER 2 3 0-2 at 40m above ground the corresponding occurrences are: SW 13 5%,
WSW 5 9~5 and and SSW 16.3% for a total of 35.7%. At 10m above j ground, about 33 feet, the occurrences are: SW 13 5%, WSW 7 1% and .
SSW 13.8% for a total of 34 4%. These occurrences are compatible f with and should relate to Charlotte weather Bureau records. The a records for the period 1941-1970 show a prevailing wind direction f from the SW at a mean speed of 7.5 miles per hour. For 8 months of i the year the prevailing wind direction was either from the SW or
{
from the SSW. In 1982, under the National Oceanic and Atmospheric
~
Administration a different system was used for reporting wind k direction. Direction was reported in 10 increments. SSW would i correspond to 191.25 to 213 75 from north; SW to 213 25 to 236.25 ; :
and WSW to 236.25 to 258 75 from north. The range of these three -
directions is very nearly from 190 to 260 In 1982 for five months !
the prevailing wind direction fell within this sector. Result, ant [
speeds for these months ranged from 0.5 miles per hour in March to ir 2 4 miles per hour in July. The maximum wind speeds during these _
months was 20 miles per hour. This indicates a pattern of directional' changes, including reversals. The probability of a plume released ;
at the Catawba plant being carried over Charlotte is about twice [
that of random chance. The wind speeds are such that the probable -
minimum time for a release to reach the city limit would be half an hour. As the mean wind speed is 7 5 miles per hour it would on the average take an hour and twenty minutes to reach the city j limit, about two hours to reach city center. Under some circumstances -
a change in wind direction could carry the plume back over the path by which it arrived.
~
i How frequent are calms in this region?
The Environmental Report indicates a 4 3% incidence of calms in -
--.a ,m w-, . -w. -r y r,. _ , -.c-- ----w ,., w - . - - - - -w w .w y--
the period 1969-1973 and of 9.6% in 1976-1977 0bservations made in 1976-1977 report an 8 77% occurrenes o'f winds between 1.0 and 3 3 miles per hour at 40m; of 25.68% at 10d. To the extent that a plume deposits particulates, relatively still air results in a higher ground concentration of particulates. The length of exposure to radioactive gases in the plume would be increased, and the dilution by mixing of both gases and suspended particulates would be slowed.
Calms are also the cause of' inversions.
What are inversions?
Under normally windy conditions there is good mixing both horizontally and vertically of the atmosphere. As the temperature of the upper atmosphere is lower than that of the earth's surface, a negative temperature gradient results. That is, the higher above the earth's surface, the lower the temperature. Under conditions of low air flow the atmosphere near the surface is appreciably warmed. When, through heat loss by radiation, the earth cools more ,
rapidly than the air above it, a positive temperature g.radient results. The intersection of the lower positive gradient air with the higher negative gradient air is a barrier to the mixing of the lower air with the upper air. Warm air will, due to density differ-ences rise in a negative gradient, decline in a positive gradient.
Attachment A shows the behavior of plumes under six gradient ponditions.
By retarding vertical mixing, inversions further contribute to the maintenance of high concentrations in pollutant releases, exacerbating the problem of poor mixing and slow transport which I earlier referred l to.
Are inversions frequent in the Catawba / Charlotte vicinity?
They are among the highest known in the United States. The thirty year weather record shows that this locality experiences on the average more than 350 inversions a year.. In contrast, Chicago is in the 50 a year zone. Inversions there were notorious because the amount of soot in the atmosphere was high enough to cause black days.
A radioactive plume staying close to habitations will cause more l exposure than one rising and mixing upward.
Whnt effect does rainfall have on a plume?
-h-Rain washes particulates out of the atmosphere and brings them to earth. Under dry conditions the particulates in a plume are t
brought down by gravity. Larger, denser particulates settle more f
rapidly than smaller, less dense particulates. We are all familiar l
with the conveyance of pollen and dust by the wind. ,
l What do we know about the nature of the particulates in the release from a nuclear accident?
Very little. Assumptions are made about the particle size distribution. One can conceive of the particulates in an accident l j
release differing with the nature of the ' accident. But of one thing we can be sure. In dry weather small particles will be borne
{
farther from the release than large particles. If rain is encountered I both large and small particles will be brought down at a distance j nearer to the point of release than would otherwise have occurred and at a higher concentration because there will have been less 1
l opportunity for mixing.
l l '
i What is the incidence of rainfall in the Charlotte area? 4 On the average there have been 112 days with recordable rain in Charlotte. In 1982 there were 120 days. This is one day in three.
How much rain falls in Charlotte?
- 3 The thirty year average is 42 72 inches water equivalent. This includes snow and ice pellets. In 1982 the total precipitation was 41.69 inches. -
How does this compare to other parts of the country?
There is a listing of weather data from 29 weather" stations of the rainfall in typical meteorological years in NUREG/CR'-2239. The average of these values is 29.9 inches. Charlotte receives 43%
more rain than the average station reported.
How heavy or light is this rainfall? .
It covers the range from mists or drizzle to heavy. In a 30 year period the heaviest 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> fall was 5.34 inches. In 1982 the heaviest fall was 2.17 inches in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. A h6avy enough rainfall will tend to wash away pollutants. The average Charlotte rainfall is 0 38 inches, hardly a cleansing downpour.
6 f.
Are there any other weather factors in relation to an atmospheric I release of radioactivity that you would call to our attention? ;
Yes. Snow would probably entrain particulates with about the b same efficiency as rain. The larger surface to mass ratio of snow j flakes would make them more efficient scavengers than spherical drops. @
There are strong attractive forces between small particles and larger [
masses; the snow would not need to have a moist surface to capture !
aerosol dimension particles. The particles would be immobilized f l where the snow fell. Depending on the rate of the thaw, there could j be little or no runoff and efficient deposition of the particles 5 on the ground and other snowed-on surfaces.
f Is this the only effect snow would have?
Not necessarily. Dpending on the rate of fall, depth, wetness, [:
etc., it could seriously impede automobile travel--in this context, a
i evacuation.. Other severe weather conditions could interfere with a communication by siren or bullhorn such as high.. winds and the noise background that would be generated. 1 2
Does this complete your testimony in regard to weather influences j E
in the ovent of an ac'cidental release of radioactivity into the atmosphere? 3 a
Yes. :
A 5
How would you sum up your testimony? , i The prevailing winds are such that Charlotte has twice a random h chance of.having a release from the Catawba plant come over it. Low [ .
wind speeds and frequent inversions would make for prolonged exposure [
1 in the event of such a release. The probability of ra'inout of [
particulates over Charlotte is about 40% more than for average reported national weather conditions. Insofar ne meteorological conditions 5 affect the consequences of an accidental release of radioactivity,
}
Charlotte is substantially more at risk than a representative community of the same size at the same distance from a nuclear plant.
2 6
, Attcchm2nt A t 4 * .=
POLLUTANT CONCENTRATION VARIATION D. B. Turner *
~
THE INFLUENCE OF VERTICAL TEMPER- elevation of the plume is encountered.
ATURE STRUCTURE UPON STACK EFFLU- -
~
ENTS -
Clear skies with light winds during the_ . i
~~
night are favorable conditions for fanning.
- ' The' manner in which stack effluents diffuse. - " ' ' '
~ ~ " ' ~ ~ ~
is primarily a function of the stability of. LOFTING the atmosphere. Church (1949) has typed ;
the behavior of smoke plumes into five classes. j Hewson (1960) has added a sixth class taking Lofting occurs when there is a superadia- ;
into account inversions aloft. batic layer above a surface inversion. *
' ~
Under this condition diffusion is rapid up-
--" ward but downward diffusion does not LOOPING
_~ out. With these conditions gases will not Looping occurs with a superadiabatic lapse reach the surface but particles with rate. Large thermal eddies are developed appreciable settling velocities will drop in the unstable air and high concentrations through the inversion. Near sunset on a 3 may be brought to the ground for short time clear evening in open country is most favor-
able for lofting. Lofting is generally a
] intervals. Diffusion is good however when considering longer time periods. The transition situation and as the inversion [+
superadiabatic conditions causing looping . deepens 'is replaced by fanning. ~
occurs only with light winds and strong solar
" heating. ';1oudiness or high winds will 'I FUMIGATION prevent such unstable conditions from forming.
' ]Il.
y As solar heating increases the lower layers N
, CONING are h~tted and a super-adiabatic lapse rate - I occurs through a deeper and deeper layer.' I With vertical temperature gradient between When the layer is deep enough to reach the fanning plume, thermal turbulence will j
dry adiabatic and isothermal, slight instability bring high concentrations to the ground 1
occurs with both horizontal and vertical along the fulliength of the plume. This mixing but not as intense as in the looping i<
situation. The plume tends to be cone shaped is favored by clear skies and light winds and i ,
hence the name. The plume reaches the is apt to' occur more frequently in summer I"
due to increased heating.
ground at greater distances than with looping. '
Coning is prevalent on cloudy or windy days or nights. Diffusion equations are more Another type of fumigation may occurlin the successfulin calculating concentrations for early evening over cities. Heat sources i
this type of plume than for any other, and mechanical turbulence due to surfa'ce L '
roughness causes a lapse condition in the
) 19 wer layers of the stable air moving into L FANNING the city from non-urban areas where radiation inversions are already forming, 9 If the temperature increases upward the air is This causes a fumigation until the city loses i stable and vertical turbulence is suppressed, enough heat so that the lapse condition can no longer be maintained.
Horizontal mixing is not as great as in coning 'I L but still occurs. The plume will therefore '
} 2 y spread horizontally but little if any vertically. ; n TRAPPING l j
J Since the winds are usually light the plume .
- will also meander in the horizontal. Plume When an inversion occurs aloft such as a
' l g]
concentrations are high but little effluent from
. I, elevated sources reaches the ground with this frontal or subsidence inversion a plume
.I situation except when the inversion is broken released beneath the inversion will be trapped..'.D, j l 1 due to surface heating, or terrain at the beneath it. Even if the diffusion is good , ..._.. _ ;
beneath the inversion such as a coning plume, 1j Meteorologist, Air Resources Cincinnati '
Laboratory ESSA, NAPCA, Cincinnati, Ohio 1 PA. ME. sd. 30a. 8. 62 24 li S
(7 -
d Pellutant Conenntr*ti*n V*riati*n 1
U
.x T u I 4
( the limit to upward diffusion willincrease g
{
4 concentration in the plume and at ground l tevei. ..._ 3 i
.g . . . . . . ..
- ..g -
u l
,}
The six plume classes are diagrammed in E y the accompanying figure.
q
~;; a o
2 ss Q J S
\, .., too ria. *
, , , , , , , , , , ,,, ,! (
', co , .
Diurnal Variations of Ground-Level Concen
,, trations from Elevated Urban Sources i- ... ..
m 1 The prin,ary maximum around 10 AM is !
Q due to fumigation. The rapid decrease in j Ij j >._,' g3, . _ .,..L tonea*
concentration following this is due to the heating of a progressively deeper layer -
3 l l
- y-1 ..
and mixing of pollutants through this layer. .
I; 2 ,
'" " Tile increase of concentrations during the g ',* late afternoon are due to the slight increase j in stability after the period of maximum , j j heating. During this period the lapse
' l
$ rate is generally changing from strong 1 6 ,3r/, "'..
.r 1P i
, lapse to weak lapse. l y; - ............... .'
'~
\ "' *wr **= nas The secondary maximum that occurs in i
the evening is a phenomena observed only r N
- VARIATIGN OF POLLUTANT COCENTRA- in the urban area. During the late afternoon (
TIONS DUE TO METEOROLOGIC VARIATIONS and early evening a radiation invez sion. "
begins to form at the earth's surfage in the '
'.j An example of the diurnal variation of non-urban areas, i.e., the surrounding '
pollutant concentrations is given in this countryside. The air over the city,'how-j{
figu r e. These are the concentrations ever, does not have a radiation inversion some distance down-wind f rom a contin- in the lower layers due to release of heat .
uous elevated urban source on a day when from the buildings and pavings of the city.
stability reaches extremes, i. e. , on a. However, later in the evening, an inversion clear day with light winds. This shows. above the weak lapse layer forms above the l:.. .
only the variations on the order of an city and a mixing of the pollutants in this hour's duration rather that the rapid varia- layer produces the higher concentrations.
tions which may occur a few minutes .
This has been described by Munn and Katz g duration. . .
1 g
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L
. a. .
M
_,. . :r-' .* * *-
.. . :.:, ~ n . -
- ~. c % , i s . . ,: w .u b; ipic *warx1:. .u.~ ..
... .:...,.w._... . . . . - - - - -
2-6
%g. .
n . ~ n x. , n . ~ c ~ a