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Category:ENVIRONMENTAL MONITORING REPORTS(&RADIOLOGICAL)-PERIODIC
MONTHYEARML17229B0231998-12-31031 December 1998 1998 Std Format for Reporting Number of Personnel & Man-Rem for Work & Job Functions ML17229B0351998-12-31031 December 1998 Combined Annual Radioactive Effluent Release Rept for Period Jan-Dec 1998 ML17229B1091998-12-31031 December 1998 1998 Annual Environ Operating Rept for St Lucie Unit 2 L-99-065, 1998 Annual Radiological Environ Operating Rept for St Lucie Plant Units 1 & 2. with . Pages 8 of 12 Through 12 of 12 in 2nd,3rd & 4th Quarters of Incoming Submittal Not Included1998-12-31031 December 1998 1998 Annual Radiological Environ Operating Rept for St Lucie Plant Units 1 & 2. with . Pages 8 of 12 Through 12 of 12 in 2nd,3rd & 4th Quarters of Incoming Submittal Not Included ML17241A3621998-12-31031 December 1998 Revised Attachment C, Results from Interlaboratory Comparison Program 1998, of 1998 Annual Radiological Environmental Operating Rept ML17229A6371997-12-31031 December 1997 Combined Annual Radioactive Effluent Release Rept for Period 970101-1231 ML17229A6941997-12-31031 December 1997 1997 Annual Environ Operation Rept, for St Lucie,Unit 2 L-97-101, 1996 Annual Environ Operating Rept1996-12-31031 December 1996 1996 Annual Environ Operating Rept ML17229A2431996-12-31031 December 1996 Combined Annual Radioactive Effluent Release Rept for Period 960101-1231 ML17229A2451996-12-31031 December 1996 1996 Man-Rem Rept L-97-100, 1996 Annual Radiological Environ Operating Rept1996-12-31031 December 1996 1996 Annual Radiological Environ Operating Rept L-96-105, Annual Environ Operating Rept1995-12-31031 December 1995 Annual Environ Operating Rept L-96-033, 1995 Annual Operating Rept, Including Primary Chemistry Info,Mangrove Photographic Survey Results & Man-Rem Rept.W/1995-12-31031 December 1995 1995 Annual Operating Rept, Including Primary Chemistry Info,Mangrove Photographic Survey Results & Man-Rem Rept.W/ ML17228B4231995-12-31031 December 1995 Corrected 1995 Annual Radioactive Effluent Release Rept ML17228B4681995-12-31031 December 1995 1995 Annual Radiological Environ Operating Rept St. Lucie Plant,Units 1 & 2 ML17309A8291995-12-31031 December 1995 1995 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 2 ML17309A8241995-12-31031 December 1995 Annual Radiological Effluent Release Rept ML17228B0401994-12-31031 December 1994 Combined Annual Radioactive Effluent Release Rept for Period Jan-Dec 1994 ML17228B1321994-12-31031 December 1994 Annual Environ Operating Rept 1994 - Vol I ML17228B1331994-12-31031 December 1994 Annual Environ Operating Rept (FPL-94),Vol II L-95-113, 1994 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 21994-12-31031 December 1994 1994 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 2 ML17228A4771993-12-31031 December 1993 Personnel Radiation Monitoring Rept CY93, 1993 man-rem Rept Required by Reg Guide 1.16,submitted in 1993 Annual Operating Rept ML17228A6121993-12-31031 December 1993 Correction to 1993 Semi-Annual Radioactive Effluent Release Rept & Response to Brookhaven Natl Lab Request for Info ML17309A7251993-12-31031 December 1993 Combined Semiannual Radioactive Effluent Release Rept for Period Jul-Dec 1993 L-94-100, 1993 Annual Radiological Environ Operating Rept St Lucie, Units 1 & 21993-12-31031 December 1993 1993 Annual Radiological Environ Operating Rept St Lucie, Units 1 & 2 L-94-110, Annual Environ Operating Rept 1993, Vols 1 & 21993-12-31031 December 1993 Annual Environ Operating Rept 1993, Vols 1 & 2 L-93-216, Combined Semiannual Radioactive Release Rept for Jan-June 1993 for St Lucie Plant,Units 1 & 21993-06-30030 June 1993 Combined Semiannual Radioactive Release Rept for Jan-June 1993 for St Lucie Plant,Units 1 & 2 ML17227A7051992-12-31031 December 1992 Statistical Whole Body Monitoring Rept for CY92 ML17227A7061992-12-31031 December 1992 1992 Man-Rem Rept ML17309A6971992-12-31031 December 1992 1992 Annual Radiological Environ Operating Rept for St Lucie Plant,Units 1 & 2 L-93-049, Combined Semiannual Radioactive Effluent Release Rept for Jul-Dec 19921992-12-31031 December 1992 Combined Semiannual Radioactive Effluent Release Rept for Jul-Dec 1992 L-93-113, Vols 1 & 2 to St Lucie,Unit 2 Annual Environ Operating Rept,1992, Consisting of Info Re Sea Turtle Refuge.W/1992-12-31031 December 1992 Vols 1 & 2 to St Lucie,Unit 2 Annual Environ Operating Rept,1992, Consisting of Info Re Sea Turtle Refuge.W/ L-92-238, Semiannual Radioactive Effluent Release Rept for Jan-June 1992. Proposed Changes to Process Control Program Also Encl1992-06-30030 June 1992 Semiannual Radioactive Effluent Release Rept for Jan-June 1992. Proposed Changes to Process Control Program Also Encl ML17227A3991991-12-31031 December 1991 Vol II to St Lucie 2 Annual Environ Operating Rept,1991 Sea Turtle Refuge ML17227A3981991-12-31031 December 1991 Vol I to St Lucie 2 Annual Environ Operating Rept,1991 ML17309A6751991-12-31031 December 1991 1991 Annual Radiological Environ Operating Rept ML17227A3471991-12-31031 December 1991 Radiation Exposure Monitoring & Access Control Sys - Remacs Statistical Whole Body Exposure Rept for CY91 ML17227A3251991-12-31031 December 1991 Semiannual Radioactive Effluent Release Rept for Jul Through Dec 1991 L-91-228, Combined Semiannual Radioactive Effluent Release Rept for Jan-June 19911991-06-30030 June 1991 Combined Semiannual Radioactive Effluent Release Rept for Jan-June 1991 L-91-131, Quarterly Turtle Activities Rept for First Quarter 19911991-03-31031 March 1991 Quarterly Turtle Activities Rept for First Quarter 1991 L-91-053, Combined Semiannual Radioactive Effluent Release Rept for Period Jul-Dec 19901990-12-31031 December 1990 Combined Semiannual Radioactive Effluent Release Rept for Period Jul-Dec 1990 ML17223B1741990-12-31031 December 1990 St.Lucie Unit 2 Annual Environ Operating Rept,Vo1 1 for 1990 ML17223B1751990-12-31031 December 1990 St.Lucie Unit 2 Annual Environ Operating Rept,Vol 2 for 1990 ML17227A5931990-12-31031 December 1990 Corrected Effluent & Waste Disposal Annual Rept for 1990, Correcting Typo Under Column Labeled Nuclide Released Replacing Fe-53 w/Fe-59 & Deleting Noncompacted & Replacing Values for Noncompressible Metal L-91-117, 1990 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 21990-12-31031 December 1990 1990 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 2 L-90-407, Quarterly Turtle Activities Rept for Third Quarter 19901990-09-30030 September 1990 Quarterly Turtle Activities Rept for Third Quarter 1990 L-90-398, NPDES Discharge Monitoring Rept for Sept 19901990-09-30030 September 1990 NPDES Discharge Monitoring Rept for Sept 1990 ML17223B2281990-06-30030 June 1990 Corrected Table 3.9 of Semi-Annual Rept - Jan-June 1990 ML17223A8941990-06-30030 June 1990 Semiannual Radioactive Effluent Release Rept for Jan-June 1990 L-90-253, Quarterly Turtle Activities Rept for Second Quarter 19901990-06-30030 June 1990 Quarterly Turtle Activities Rept for Second Quarter 1990 1998-12-31
[Table view] Category:TEXT-ENVIRONMENTAL REPORTS
MONTHYEARL-99-214, NPDES Noncompliance Notification:On 990906 & 07,19 Dead Green Sea Turtles Recovered from Unit 1 Intake Well.Cause Not Presently Known.Capture Efforts Increased Behind 5 Inch Net Until Remaining Turtles Recovered1999-10-0101 October 1999 NPDES Noncompliance Notification:On 990906 & 07,19 Dead Green Sea Turtles Recovered from Unit 1 Intake Well.Cause Not Presently Known.Capture Efforts Increased Behind 5 Inch Net Until Remaining Turtles Recovered L-99-183, NPDES Noncompliance Notification:On 990717,dead Loggerhead Turtle Was Recovered from Plant Intake Canal.Caused by Lowered 5-inch Barrier Net.Net Was Cleaned of Accumulated Algae & Raised Into Position on 990719.With1999-08-13013 August 1999 NPDES Noncompliance Notification:On 990717,dead Loggerhead Turtle Was Recovered from Plant Intake Canal.Caused by Lowered 5-inch Barrier Net.Net Was Cleaned of Accumulated Algae & Raised Into Position on 990719.With ML17229B1021999-04-23023 April 1999 Environ Assessment & Finding of No Significant Impact Re Proposed Amend to Modify TS by Changing Criticality Requirements for Design of Spent Fuel Storage Racks & Increasing Capacity of Spent Fuel Storage Pool ML17229B0301999-03-0101 March 1999 NPDES Noncompliance Notification:On 990207,dead Green Turtle (Chelonia Mydas) Weighing 7.5 Lb Recovered from Plant Intake Canal.Caused by Shoaling of Sediments in Canal Where Capture Net Deployed.Methods of Capture Net Insp Modified ML17241A3621998-12-31031 December 1998 Revised Attachment C, Results from Interlaboratory Comparison Program 1998, of 1998 Annual Radiological Environmental Operating Rept L-99-065, 1998 Annual Radiological Environ Operating Rept for St Lucie Plant Units 1 & 2. with . Pages 8 of 12 Through 12 of 12 in 2nd,3rd & 4th Quarters of Incoming Submittal Not Included1998-12-31031 December 1998 1998 Annual Radiological Environ Operating Rept for St Lucie Plant Units 1 & 2. with . Pages 8 of 12 Through 12 of 12 in 2nd,3rd & 4th Quarters of Incoming Submittal Not Included ML17229B1091998-12-31031 December 1998 1998 Annual Environ Operating Rept for St Lucie Unit 2 ML17229B0351998-12-31031 December 1998 Combined Annual Radioactive Effluent Release Rept for Period Jan-Dec 1998 ML17229B0231998-12-31031 December 1998 1998 Std Format for Reporting Number of Personnel & Man-Rem for Work & Job Functions L-98-250, NPDES Noncompliance Notification:On 980903,08,14 & 18 Differential Pressure Across Intake Travelling Screens Occurred.Caused by Excessive Jellyfish Buildup.Secured 1A1 Cw Pump & Throttled Three of Four Cw Pumps1998-10-0101 October 1998 NPDES Noncompliance Notification:On 980903,08,14 & 18 Differential Pressure Across Intake Travelling Screens Occurred.Caused by Excessive Jellyfish Buildup.Secured 1A1 Cw Pump & Throttled Three of Four Cw Pumps L-98-196, NPDES Noncompliance Notification:On 980717,discovered That 15 Juvenile Least Terns Died in Roof Drainage Sys at Plant Screens Placed Around Drains Earlier in Nesting Season to Protect Hatchlings from Entering Drain Gutters1998-07-23023 July 1998 NPDES Noncompliance Notification:On 980717,discovered That 15 Juvenile Least Terns Died in Roof Drainage Sys at Plant Screens Placed Around Drains Earlier in Nesting Season to Protect Hatchlings from Entering Drain Gutters ML17229A5821998-01-0808 January 1998 NPDES Noncompliance Notification:On 971214,discovered Partially Entangled Mantee in Sea Turtle Capture Nets.Caused by Large Openings in Concrete Velocity Caps.Addl Insp of Caps Will Be Made ML17229A6941997-12-31031 December 1997 1997 Annual Environ Operation Rept, for St Lucie,Unit 2 ML17229A6371997-12-31031 December 1997 Combined Annual Radioactive Effluent Release Rept for Period 970101-1231 L-97-266, NPDES Noncompliance Notification:On 970912 Samples Were Taken for CBOD5 at Influent & Effluent of St Lucie Unit 1 Sewage Treatment Plant.Value Less than Permitted Minimum Due to Increased Number of Personnel.Resample Taken1997-10-17017 October 1997 NPDES Noncompliance Notification:On 970912 Samples Were Taken for CBOD5 at Influent & Effluent of St Lucie Unit 1 Sewage Treatment Plant.Value Less than Permitted Minimum Due to Increased Number of Personnel.Resample Taken ML17229A4351997-08-0606 August 1997 Environ Assessment & Fonsi Re Exemption from Certain Requirements of 10CFR70.24.Proposed Action Would Exempt License from Requirements to Maintain Emergency Procedures for Each Area in Which SNM Handled,Used or Stored L-97-172, NPDES Noncompliance Notification:On 970614 & 30,discovered One Dead Sea Turtle on Each Date.Caused by five-inch Barrier Net Loaded W/Algae.Removed Algae from Net & Hand Drudged Silt to Allow Net to Return to Original Position1997-07-0707 July 1997 NPDES Noncompliance Notification:On 970614 & 30,discovered One Dead Sea Turtle on Each Date.Caused by five-inch Barrier Net Loaded W/Algae.Removed Algae from Net & Hand Drudged Silt to Allow Net to Return to Original Position L-97-100, 1996 Annual Radiological Environ Operating Rept1996-12-31031 December 1996 1996 Annual Radiological Environ Operating Rept ML17229A2451996-12-31031 December 1996 1996 Man-Rem Rept ML17229A2431996-12-31031 December 1996 Combined Annual Radioactive Effluent Release Rept for Period 960101-1231 L-97-101, 1996 Annual Environ Operating Rept1996-12-31031 December 1996 1996 Annual Environ Operating Rept L-96-261, Noncompliance Notification:On 960918,adult Female West Indian Manatee Observed in Intake Canal.Newly Installed Turtle Barrier Net Was Instrumental in Retaining Manatee in Safe Location & in Good Condition.Manatee Released1996-10-10010 October 1996 Noncompliance Notification:On 960918,adult Female West Indian Manatee Observed in Intake Canal.Newly Installed Turtle Barrier Net Was Instrumental in Retaining Manatee in Safe Location & in Good Condition.Manatee Released L-96-187, NPDES Noncompliance Notification:On 960603,effluent Ph of Unit 1 Sewage Treatment Plant Observed to Be 4.03 Std Units. Util Believes Increased Numbers of Personnel at Site During Refueling Outage Resulted in Extra Loading1996-07-23023 July 1996 NPDES Noncompliance Notification:On 960603,effluent Ph of Unit 1 Sewage Treatment Plant Observed to Be 4.03 Std Units. Util Believes Increased Numbers of Personnel at Site During Refueling Outage Resulted in Extra Loading ML17228B4581996-04-0505 April 1996 Unusual or Important Environ Event Re Fish Kill in Plant Intake Canal on 960311.Caused by Extreme Seawater Turbidity Associated W/Storm Conditions,Clogging Gill Surfaces & Suffocating Fish.Well Chlorination Discontinued L-96-105, Annual Environ Operating Rept1995-12-31031 December 1995 Annual Environ Operating Rept ML17309A8291995-12-31031 December 1995 1995 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 2 ML17309A8241995-12-31031 December 1995 Annual Radiological Effluent Release Rept ML17228B4231995-12-31031 December 1995 Corrected 1995 Annual Radioactive Effluent Release Rept ML17228B4681995-12-31031 December 1995 1995 Annual Radiological Environ Operating Rept St. Lucie Plant,Units 1 & 2 L-96-033, 1995 Annual Operating Rept, Including Primary Chemistry Info,Mangrove Photographic Survey Results & Man-Rem Rept.W/1995-12-31031 December 1995 1995 Annual Operating Rept, Including Primary Chemistry Info,Mangrove Photographic Survey Results & Man-Rem Rept.W/ ML17228B3321995-11-30030 November 1995 Assessment of Impacts of St Lucie Nuclear Generating Plant on Sea Turtle Species Found in Nearshore Waters of Florida L-95-312, NPDES Noncompliance Notification:On 951016,effluent Ph of Unit 1 Sewage Treatment Plant Observed to Be 5.54 Std Units,Below 6.0 Std Units Required by Wastewater Permit. Increased Ph Monitoring of Aeration Tanks Undertaken1995-11-24024 November 1995 NPDES Noncompliance Notification:On 951016,effluent Ph of Unit 1 Sewage Treatment Plant Observed to Be 5.54 Std Units,Below 6.0 Std Units Required by Wastewater Permit. Increased Ph Monitoring of Aeration Tanks Undertaken ML17228B0401994-12-31031 December 1994 Combined Annual Radioactive Effluent Release Rept for Period Jan-Dec 1994 L-95-113, 1994 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 21994-12-31031 December 1994 1994 Annual Radiological Environ Operating Rept St Lucie Plant Units 1 & 2 ML17228B1331994-12-31031 December 1994 Annual Environ Operating Rept (FPL-94),Vol II ML17228B1321994-12-31031 December 1994 Annual Environ Operating Rept 1994 - Vol I ML17228A9501994-12-0808 December 1994 NPDES Noncompliance Notification:On 941204,2 Millon Gallons of Untreated Parking Lot Runoff Entered Mangrove Impoundment 008E.Aluminum Sheet Pile Will Be Driven Several Inches in Front of Wall ML17228A9341994-11-18018 November 1994 NPDES Noncompliance Notification:On 941116,untreated Parking Lot Runoff Escaped to Mangrove Impoundment 008E.FP&L Engineering Examining Failure Mode for Event & Will Design Appropriate Mod.Temporary Repairs to Be Completed by 941130 ML17228A9091994-11-0404 November 1994 NPDES Noncompliance Notification:On 941030,1.5 Million Gallons of Untreated Parking Lot Runoff Entered Mangrove Impoundment 008E.Permanent Corrective Actions Under Review ML17309A7251993-12-31031 December 1993 Combined Semiannual Radioactive Effluent Release Rept for Period Jul-Dec 1993 ML17228A6121993-12-31031 December 1993 Correction to 1993 Semi-Annual Radioactive Effluent Release Rept & Response to Brookhaven Natl Lab Request for Info ML17228A4771993-12-31031 December 1993 Personnel Radiation Monitoring Rept CY93, 1993 man-rem Rept Required by Reg Guide 1.16,submitted in 1993 Annual Operating Rept L-94-110, Annual Environ Operating Rept 1993, Vols 1 & 21993-12-31031 December 1993 Annual Environ Operating Rept 1993, Vols 1 & 2 L-94-100, 1993 Annual Radiological Environ Operating Rept St Lucie, Units 1 & 21993-12-31031 December 1993 1993 Annual Radiological Environ Operating Rept St Lucie, Units 1 & 2 L-93-280, NPDES Noncompliance Notification:On 930915,midnight Discharge Canal Sample Collected During Biocide Application Indicated Concentration of 0.53 Ppm.Communications Between Individuals Involved Increased1993-11-0101 November 1993 NPDES Noncompliance Notification:On 930915,midnight Discharge Canal Sample Collected During Biocide Application Indicated Concentration of 0.53 Ppm.Communications Between Individuals Involved Increased L-93-134, NPDES Noncompliance Notification:On 930503,sewage Treatment Plant Effluent Tested & Found to Have Ph Value of 3.6 Std Units.Util Believes That Acidic Solution Mistakenly Poured Down Plant Drain.Sodium Carbonate Added to Sys1993-07-0606 July 1993 NPDES Noncompliance Notification:On 930503,sewage Treatment Plant Effluent Tested & Found to Have Ph Value of 3.6 Std Units.Util Believes That Acidic Solution Mistakenly Poured Down Plant Drain.Sodium Carbonate Added to Sys L-93-216, Combined Semiannual Radioactive Release Rept for Jan-June 1993 for St Lucie Plant,Units 1 & 21993-06-30030 June 1993 Combined Semiannual Radioactive Release Rept for Jan-June 1993 for St Lucie Plant,Units 1 & 2 ML17227A8021993-04-14014 April 1993 NPDES Noncompliance Notification:Sea Turtle Captures in Intake Canal Increased Dramatically Beginning in Fall 1992. During First Quarter 1993,165 Turtles Removed from Canal. Mods to Ocean Intake Velocity Caps Completed in Feb 1992 ML17227A7601993-03-0505 March 1993 NPDES Noncompliance Notification:On 930114,neutralization Basin,Containing 220,000 Gallons of Water,Discharged to Intake Canal at Ph of 10.20 Std Units.Caused by Miscommunication.Procedure Developed to Address Discharge ML17227A6891993-01-14014 January 1993 NPDES Noncompliance Notification:On 921221,chemical Feed Tank Inadvertently Discharged Through Drain Left in Open Position,Resulting in Release of Approx 20 Gallons of Amerzine to West Storm Pond.Personnel Counseled 1999-08-13
[Table view] |
Text
CATEGORY 1 REGULATE INFORMATION DISTRIBUTIONiSTEM (RIDS I ACCESSlC.V NPF".9Ej042)0014 DOC
~ DATE: 95/12/31 NOTARIZED:
NO
DOCKET I FACI::50-335 )t. Lucie Plant, Unit 1, Florida Power
& Light Co.
05000335 50-389 St. Lucie Plant, Unit 2, Florida Power
& Light Co.
,05000389 AUTH.NAME AUTHOR AFFILIAT ON BOHLKE,'H.'H.
Florida Power
& Light Co.
REC'P.NAME RECIPIENT AFFILIATION SUB.DIECT:
"1995. Arnpal Radiological Environ Operating Rept Plan't,Units 1
& 2." W/960412 ltr.
D.'STRIBUTLON CODE:
IE25D COPIES RECEIVED:LTR ENCL TITLE: Environmental Monitoring Rept (per Tech Specs)
NOTES:
St. f facie SIZE:
RECIPIENT ID CODE/NAME PD2-1 LA NORRIS,J COPIES LTTR ENCL 3
3 1
1 RECIPIENT ID CODE/NAME PD2-1 PD COPIES l TTR EhJCL 1
1 0
R TNTi Hki': A( RS NRR/DRPM/PERB EXTERNAL: LITCO AKERS,D 1
LAMENTER 1
1 6N2~TGR 1
NRC PDR 1
1 1
1 1
1 0
N NOTE TO ALL "RZDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTEI CONTACT THE DOCUMENT CONTROL DESK, ROOM OWFN SD-5(EXT. 415-2083)
TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDl TOTS~'NUMBER OP COPE"'S REQL i.RFD:
LTTR 11 i'NCL
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I Florida Power 5 Light Company, P.O. Box 128, Fort Pierce, FL 34954-0128 April 12 1996 L-96-96 10 CFR 50.4 10 CFR 50.36 U.
S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.
C.
20555 RE:
St. Lucie Units 1 and 2
Docket Nos.
50-335 and 50-389 Annual Radiological Environmental The attached pages update "Attachment C" of the Annual Radiological Environmental Operating Report with the 1995 results from the Interlaboratory Comparison Program.
When the report was submitted per our letter L-96-73 dated March 21,
- 1996, the data was not available.
Should there be any questions.,on this information, please contact us
~
Very truly yours, W. H. Bohlke Vice President St. Lucie Plant Attachment WHB/SL cc:
Stewart D. Ebneter, Regional Administrator, Region II, USNRC, Atlanta GA Senior R'esident Inspector, USNRC, St. Lucie Plant
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PDR LI an FPL Group company
1995 ANNUAL OGICAL ENVIRONMENTAL OPE ING REPORT ST.
LUCIE PLANT, UNITS 1 Sc 2
ATTACHMENT C RESULTS FROM THE INTERLABORATORY COMPARISON PROGRAM 1995 HP3:1/RADENVQP.PSL
I l'
FLORIDA DEPT.
OF HRS EPA ZNTERLABORATORY CROSS-CHECK PROGRAM DATA January through June, 1995 WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER Alpha Beta Co-60 Zn-65 Ba-133 Cs-134 Cs-137 H-3 I-131 Sr-89 Sr-90 Media Nuclide Collection Mon Day Yr 01 27 95 01 27 95 06 09 95 06 09 95 06 09 95 06 09 95 06 09 95 03 10 95 02 03 95 01 13 95 01 13 95 EPA Known 5
5 40 76 79 50 35 7435 100 20 15 Units pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L Normal.
Range 0 '36 0.236 0.236 0.517 0.148 0.000 0.354 0.193 0.118 0.354 0.236 Mean of Analyses 5.00 7.33 39.00 82.67 74.33 47.00 37.67 7355.00 97 F 00 14.33 10.33 N.D,K. Action Level 0.00 0.81
-0.35 1.44
-1.01
-1.04 0.92
-0.19
-0.52
-1.96
-1.62 NOTES:
Normal.:
N.D.K.:
NDP:
NA:
Normalized range.
As defined in "Environmental Radioactivity Laboratory lntercomparison Studies Program Fiscal Year 1981 1982", Environmental Monitoring Systems Laboratory, U.
S. Environmental Protection
- Agency, P.
0.
Box 93478, Las Vegas,
- Nevada, 89193-3478.
EPA-600/4-81-004,
- February, 1981
'ormalized deviation of the mean from the known value, as defined in EPA-600/4-81-004.
No data provided.
No data was provided to EPA for inclusion in their report.
Not available.
Report containing this data has not yet been received from EPA, Las Vegas.
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FLORIDA DEPT.
OF HRS EPA INTERLABORATORY CROSS-CHECK PROGRAM DATA July through December, 1995 FILTER FILTER FXLTER FILTER MILK MILK MXLK MXLK MILK WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER Alpha Beta Cs-137 Sr-90 X-131 Cs-137 KSr-89 Sr-90 Alpha Alpha Beta Beta Co-60 Zn-65 Ba-133 Cs-134 Cs-137 H-3 I-131, Sr-89 Sr-90 Media Nuclide Collection Mon Day Yr 08 25 95 08 25 95 08 25 95 08 25 95 09 29 95 09 29 95 09 29 95 09 29 95 09 29 95 07 21 95 10 27 95 07 21 95 10 27 95 11 03 95 11 03 95 11 03 95 11 03 95 11 03 95 08 04 95 10 06 95 07 14 95 07 14 95 EPA Known 25 86.6 25 30 99 50 1654 20 15 27.5 51.2 19.4 24.8 60 125 99 40 49 4872 148 20 8
Units N
pCi/Fil pCi/Fil pCi/Fil pCi/Fil pCi/L pCi/L mg/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L ormal.
Range 0.141 0.396 0.000 0.709 0.295 0,000 0.306 0.945 0.945 0.231 0.120 0.567 1.413 0.236 0.409 0.059 0.'118 0.354
- 0. 039 0,591 0.118 Mean of Analyses 28.30 79.57 28.00 21.33 98.67 53.00 1687.33 12.00 16.00 23.33 24.90 23.60 32.97 60.33 134.67 92.67 37.33 54.00 148. 67 8.00 9.33 N.D.K. Action Level 0,91
-1.22 1.04
-3.00 1
-0 '6 1.04 0.70
-F 77 0.35
-1.05
-3.56 2
1.45 2.83 0.12 1.29
-1.10
-0.92 1.73 NDP 0.08
-4.16 3
0,46
0 r
P a'E gI
1
NOTES:
Normal.:
N.D.K.:
Normalized range.
As defined in "Environmental Radioactivity Laboratory Intercomparison Studies Program Fiscal Year 1981 1982", Environmental Monitoring Systems Laboratory, U.
S. Environmental Protection
- Agency, P.
0, Box 93478, Las Vegas,
- Nevada, 89193-3478.
EPA-600/4-81-004,
- February, 1981.
Normalized deviation of the mean from the known value, as defined in EPA-600/4-81-004.
NDP:
NA:
No data provided.
No data was provided to EPA for inclusion in their reports Not available.
Report containing this data has not yet been received from EPA, Las Vegas.
ACTION LEVEL:
(1) Cause:
Chemical recoveries too low and inconsistent.
Corrective Action: Try to improve recovery and consistency.
(2) Cause:
Please see attached note from EPA, Corrective Action: Try EPA's suggestions.
(3) Cause:
Insufficient number of counts on sample, Corrective Action: Count samples more time.
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UNITED TATES ENVIRONMENTALPROTECTIO ENCY NATIONALEXPOSURE RESEARCH LABORATORY P.O. BOX 93478 e LAS VEGAS, NV 89l93 3478 OFFICE OF RESEAACH ANDDEVELOPMEMl' note regarding the Gross Alpha portion ofthe October 27, 1995 Gross Alpha-Beta in Water Performance Evaluation Study:
Both the July 1995 and October 1995 Gross Alpha-Beta in Water Performance Evaluation (PE) Studies showed a significant difference between the grand average and the known value for the gross alpha. This strongly implies there is bias in the method.
Our research indicates that matrix differences between the salt solids used to prepare the calibration curve and the salts in the sample are the source ofthe bias.
The attached figure illustrates the changes in efficiency due to salt composition and nuclide energy. The bottom curve was prepared with serial dilutions oflaboratory tap water. Laboratory tap water is also used to add variable amounts ofdissolved solids to the
'E gross alpha/beta study samples. The second curve was prepared with serial dilutions ofsodium sulfate solution. The top curve was prepared the same way as the second curve
. except that Am-241 was used as the alpha emitter. Allthe usual precautions apply. The curves reflect the efficiencies for our counter; the curves in the figure are illustrative only; and lastly, results for your laboratory may be different than shown in the figure.
At zero mass all the curves converge to the extent that the bias would not be noticeable in a PE study. As the mass ofsolids increases, the difference between the two Th-230 curves becomes pronounced. For sample masses between 30 and 40 mg, typical range for a 200 mL sample ofthe July 1995 or October 1995 study, the difference is between 50 to 70 percent.
To address the bias, we are recommending the procedure used in our laboratory. To a volume ofsample equal to that used for analysis (100-150 mL) add 120 pCi ofTh-230.
Acidifythe sample with 20-40 mL ofconcentrated nitric acid and evaporate by the procedure attached to the PE study report sheet. The volume ofPE sample provided is sufficient to prepare triplicate 150 mL samples and duplicate spiked samples. Count the spikes until approximately 1600 counts above background are acquired to a maximum of 200 minutes. Background in this case willbe that ofthe PE samples. Subtract the average count rate ofthe triplicate samples from the average count rate ofthe spikes and calculate the efficiency. Use this efficiency to calculate the concentration ofgross alpha in the PE sample.
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An alternate procedure. After counting the triplicates, redissolve/reslurry the solids oftwo ofthe samples in the planchet with dilute nitric acid (3-6M). Add the spike, mix well, redry and count the spikes. This technique, though simple on the surface, requires sufficient care so as not to lose sample volume, and that the Th-230 is thoroughly incorporated into the dissolved salts. We recommend this orily for laboratories with a high degree ofconfidence in the analyst's ability to prepare the spikes by this technique.
You may use more or less spiked activity ifyou choose. The recommended activity ofthe spike and the maximum count time were determined to provide 5 percent precision at 95 percent confidence for the spike at an efficiency as low as 3 percent. For higher efficiencies the count time willbe much shorter than 200 minutes. Additionally, we recommend several practice runs to gain experience with the technique you choose.
So, why not send out our laboratory tap water and have the participating laboratories prepare a curve? The tap water supplied to our laboratory varies in dissolved salt composition. This was observed during our verification ofthe July 1995 PE sample. Our QC samples showed a 40 percent bias when samples and spikes were quantified using a calibration curve. Repeat measurements demonstrated the bias was consistent and not due to analyst error. Therefore, preparing a curve with water from our laboratory does not guarantee that the bias willbe eliminated.
Collectively these procedures are single point calibration techniques and are not prohibited by the approved methods. The curve concept was introduced in recognition of the variable dissolved solids ofwater in given geographical areas.
Ifyou have any questions or comments please call Stephen Pia at 702 798-2102.
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