ML17346A557

Radiological Environ Monitoring Rept, Jan-June 1984

ML17346A557
Person / Time
Site:	Turkey Point
Issue date:	06/30/1984
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17346A555	List: ML17346A553 ML17346A556 ML17346A557 ML17346A558
References
NUDOCS 8410010149
Download: ML17346A557 (16)

Text

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT TURKEY POINT UNITS 3 5 4 DOCKET NOS. 50-250, 251 DADE COUNTY, FLORIDA 1-1-84 TO 6-30-84 PREPARED AUGUST 1984 DATA SUBMITTED BY: FLA. DHRS REPORT REVIEWED BY: =,%c"~.j DATA REVIEWED AND REPORT PREPAR D BY:

I 840830 8410010149 05000250 PDR ADOCK I R

• I. INTRODUCTION This report is submitted pursuant to'ection 6.9 of the Turkey Point Plant 3 5 4 Technical Speci fications and provides information and results for environmental samples specified by Table 4.12-1.

Radiological environmental surveillance for the Turkey Point Plant is conducted in accordance with Section 4.12 of the pl ant's Technical Specifications. A summary of the sanples collected and analyses per formed r

during the period January 1, 1984 through June 30, 1984 is provided in Table 1.

1. THf MONITORING PROGRAM, Period Covered: This report covers the period from January 1, 1984 through June 30, 1984.

Anal tical Res onsibilit: Radiological environmental monitoring for the Turkey Point Plant is conducted by the State of Florida, Department of Health and Rehabilitative Services (DHRS). Samples are collected and analyzed by DHRS personnel.

Number of Sam les: During the period, a total of 696 samples were collected from 46 different locations to be analyzed for radioactivity.

Table 1 summarizes the highest, lowest and mean results for all sample locations, and where applicable the highest,.lowest and mean results for the sample locations which yielded the highest mean levels. The values in Table 1 are based upon only those analyses which yielded detectable measurements.

~ll- 1: I h i .184-J 30.

addition to the sanples identified in Table 1, fourteen (14) smples were submitted for comparative analysis by the DOE in accordance with the DHRS/DOE spli t-sanpling progr an.

3. MISSING DATA A description and explanation for missing data is contained in Table 1.

4. DISCUSSION AND INTERPRETATION OF DATA locations surrounding the Turkey Point Plant. Sanples were collected and analyzed by Florida DHRS for gross radioactivity and radioiodines (I-131) on a weekly basis. All samples from this reporting period were within the normal range for background measurements. Table 1 provides a summary of these results.

Direct Radi ation Monitorin: Continuous monitoring of ambient radi ation exposure rate was provided routinely at eleven different sample locations surrounding the Turkey Point Pl ant. Samples were collected and analyzed by Florida DHRS on a monthly basis. Results are based upon the average readings of two dosimeters at each location. All results from this reporting period were within the normal range for background measurements. Table 1 provides a summary of these results.

~01 S 1: I ~1 pl d environmental sanples are routinely collected from areas around the Turkey Point Nuclear Plant. These sanples include precipitation, surface water, drinking water, sediment, fish, crustacea, food crops, vegetation, milk, soil and other terrestrial biota. Table 1 provides a summary of the results of these samples from January 1, 1984 through June 30, 1984.

As in the past, tritium was the predominant radionuclide to be detected in water samples from around the Turkey Point Plant, with the highest levels found in water sanples taken from within the plant's closed cooling system. The highest tritium concentration measured during this surveillance period was only about 0.19$ of the concentration which would be permitted continously in unrestricted area waters (10CFR20, Appendix B, ~

Table II.) The highest concentration of tritium. observed in water samples outside of the closed cooling system was only about 0.01$ of the unrestricted area concentration. Trend analyses indicate that there is no evidence of a continued buildup of tritium around the Turkey Poi'nt Plant.

In addition to waterborne tritium, trace concentrations of fission and activation products continue to be detected in some of the sanples taken from within the closed cooling system. These results are consistent with past measurements and data indicate no discernable increase in radioactivity in these samples.

The results of radiological measurements, for other media and other locations surrounding the Turkey Point Plant do not yield evidence of buildup in the environment when compared to past measurements, including samples collected during the preoperational surveillance progran, and elsewhere within the State of Florida.

5.

SUMMARY

AND CONCLUSIONS Continuous air sanpling measurements are all within the normal range, for b ackg round v al ues.

Continuous anbient radi ation exposure rate measurements are all within the normal range for background values.

Tritium concentrations in water 'sanples collected around the Turkey Point Plant are consistent with past measurements. The highest observed tritium concentr ations are found within the pl ant's closed cooling system. All measurements are well below the concentration permitted by 10CFR20 for unrestricted area waters.

Radioactivity measured in sediment and biota samples taken from within the closed cooling system (inside the owner controlled area) is consistent with past measurements, with no discernable increase noted.

Measurements for other media and sanples are consistent with past measurements including those taken during the preoperational surveillance progr an.

The conc'entration of all radionuclides reported in Table 1 is much less than that permitted for release to unrestricted areas as specified in 10 CFR 20, Appendix B, Table II. The Radiological Environmental Monitoring Progran establishes that radioactivity released as a result of operation of the Turkey Point Plant Units 3 5 4 is not contributing significantly to the radiation exposure to any

'member of the public.

TABLE 1 EHVIROtRENTAL RADIOLOGICAL HONITORING PROGRAH SUHHARY Page 1 of 10 All Indicator Location with Highest Hean Control ) Ho. of Number of Locati ons Location Nonroutine Sanp e Location Reported Hedium or Pathway Unit Analysi s for Sites San les Anal ses Hean ) Ran e ) Distance Direction Hean ) Ran e ) Hea ') Ran e>> Heasurenent Sam led CC 1 I AIR 208 208 .015 .005- T51: Homestead .016 i007- .015 .006-

1. Particulates pCi/m Gross B 8

.033 (26/26) .U23 (208/208) .033 Bayfront Park (26/26)

(2 miles - NNW)

2. Radioiodine pCi/m3 131l 8. 208 208 ND HA N 1.2 DIRECT RADIATION

1. TLD uRem/hr Exposure ll 132 654) 4.9 (65/65) 2.7-6.6 T64: Natoma (22 miles -

Substation N) 6.2 (5/5) 5.4-6.6 6.2 (5/5) 5.4-6.6 Rate 1.3 PREC I P I TAT ION Gross 8-DS 4 23 ) 22" 11.0 3.5-28. 1 T72: Boy Scout Canp 14. 1 6.7- 8.3 8. I-

1. Rainwater pCi/1 (11/22) (Onsi te - WSW) (4/6) 23.1 '2/b) . 8.4 Gross B-UDS 224) 3.2 NA T64:Hatoma Substation 3.2 N 3.2 N (I/22) (22 miles - N) (I/6) (1/6)

Tritium 23 ND N NA N N ND N T emitting )

214) HD HA N ND NA isotopes 1

- Dissolved Solids UDS - Undissolved Solids ND - Not Detectable NA - Hot Applicable DS

TABLE 1 ENVIRONMENTAL RADIOLOGICAL HONITORING PROGRAM

SUMMARY

NAME OF FACILITY TURKEY POINT PLANT UNITS 3 tl 4 DOCKET NO. 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 2 of 10 All Indicator Location with Highest Hean Control ) No. of Number of Locations Location Nonroutine Medium or Pathway Analysis anp e Locat on Reported Ran e ) Hean ) Ran e ) measurements Sam led Uni t for Sites San les Anal ses Mean ) Ran e ) Distance 8 Direction Hean )

2.1 SURFACE WATERS

l. Estuarine 10 " 20 (Surf ace Water) pCi/1 Tri tium 20 240 230- T95:Long Arsenieker Key 240 (2/20) 240 (4 miles - SSE) (1/2) 89Sr 20 NO ttA NA NA 90Sr 20 ND NA NA NA y emitting ) 20 ND ttA NA NA isotopes

2. Closed Cooling 12 Canal (Surface Mater) pCi/1 Tritium 12 4700 3300- T84:Closed Cooling 4900 4100- NA NA (12/12) 5700 Canal (Onsite- SW) (6/6) 5700 89Sr 12 ND NA NA NA NA NA NA 90Sr 12 ND NA NA NA NA NA NA

) ttA ttA y emitting 12 ND ttA NA NA NA isotopes

- Solids - Undi ssolved Solids ND - Not Detectable NA - Not Applicable DS Di ssol ved UDS I

TABLE 1 ENVIRONMENTAL RADIOLOGICAL HONITORING PROGRAH SUHHARY NAHE OF FACILITY TURKEY POINT PLANT UNITS 3 5 4 DOCKET NO. 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 3 of 10 All Indicator Location. with Highest Hean Control2) No. of Number of Locations Location Nonroutine Hedium or Pathway Analysi s Sanple Location Reported San led Unit "

for Sites San les Anal ses Hean ) Ran e ) Distance 5 Direction Hean ) Ran e ) Hean ) Ran e ) Heasureaents

3. Fresh Mater Drainage Canals 12 (Surf ace Mater) pCi/1 Tri tium 12 420 330- T75 - Florida City 420 330- N (2/12) 500 Canal (2 miles - MNW) (2/6) 5UO N Gross B-DS 12 138 3. I- T75: Florida City 270 220- N (12/12) 340 Canal (2 miles - MNW) (6/6) 340 Gross 8-UDS 12 ND NA N N N 2.2 WELLS

1. Potable Well 3 6 Water (Drinking Water) pCi/1 Tri tium 6 ND NA NA N N NA Gross B-DS 6 7.5 5.1-12.3 T57: Dol an's Farm 11.0 9.7- N (6/6) (4 miles - NM) (2/2) 12. 3 Gross B-UDS 6 ND N NA N NA N

2. Ground Mater Mells 6 12 (Ground Mater) pCi/1 Tri tium 12 260 310 NA NA (4/12) (1/2) 89Sr 12 NO N N N 90Sr N N N N 12'D 12 ND NA y emitting ) N N N N N isotopes

. ~

- Undissolved Solids - Not Detectable NA - Not Applicable OS - Dissolved Solids UDS ND

TABLE 1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM

SUMMARY

NAME OF FACILITY TURKEY POINT PLANT UNITS 3 A 4 DOCKET NO. 50-250 251 r 'r, LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 4 of 10 Al I Indi cator Location with Highest Hean Control2) No. of Number of Locations Location Nonrouti ne Medium or Pathway Analysi s Sanp e Locat>on Reported Sam led Uni t for Sites San les Anal .< Measurements 3.0 BOTTOM 'SEDIMENTS

1. Closed Cooling Canal (Sediment) pCi/kg Sr ND 90Sr ND y emitting )

isotopes

1. 5'Co 154 45- T84: Closed Cooling 240 60- NA NA (4/4) 430 Canal (Onsi te-SW) (2/2) 430 2 60Co 740 320- T84: Closed Cooling 1140 840- NA NA (4/4) 1440 Canal (Onsite-SW) (2/2) 1440 3 I 37Cs 36 35- T85: Closed Cooling 36 NA NA NA (2/4) 36 Canal (Onsite-SX) (1/2) 4..54Mn 30 NA T84: Closed Cooling (I/4) Canal (Onsite-SW) (I/2) 5, 95Nb 80 NA T84: Closed Cooling 80 NA NA NA 113Sn (1/4) 13 (1/4)

NA Canal (Onsite-SW)

T84: Closed Cooling Canal (Onsite-SW)

(1/2) 13 (1/2)

NA NA 'A

2. Estuarine (Sediment) pCi/kg Sr 7 ND 90Sr 7 ND y emitting ) 7 ND isotopes DS - Dissolved Solids UDS - Undissolved Solids ND - Not Detectable NA - Not Applicable

TABLE 1 ENVIRONMENTAL RADIOLOGICAL HONITORING PROGRAH

SUMMARY

NAHE OF FACILITY TURKEY POINT PLANT UNITS 3 5 4 DOCKET NO. 50-260 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page b uf 1U All Indicator Location with Highest Mean Control~) No. of Number of Locations Location Nonroutine.

Median or Pathway Analysi s anp e Locat on Reported San led Uni t for Sites San les Anal ses Mean ) Ran e ) Distance f Direction Mean ) Ran e ) anl) Ran el) Heasuranents

1. Crustacea (Blue Crab) pCi/kg Sr ND "Sr ND y emitting ) ND isotopes

2. Fi sh,Carnivore (Hixed Species) pCi/kg Sr ND 90Sr ND y emitting )

isotopes 1 Cs 200 160- T84 - Closed Cooling 200 160- NA N (2/8) 240 Canal (Unsite - SN) (2/2) 240 2.'Others ND N N N N NA N DS - Dissolved Solids UDS - Undissolved Solids ND - Not Detectable NA - Not Applicable

TABLE I ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM

SUMMARY

NAHE OF FACILITY TURKEY POINT PLANT UNITS 3 6 4 DOCKET NO. 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 6 of 1U All Indicator Location with Mighest Hean Control 2) No. of Number of Locations Location Nonrouti ne Medium or Pathway Analysi s Sanp e Location Reported Sam led Uni t for Sites San les Anal ses Mean ) Ran e ) Distance 8 Direction Hean ) Ran e ) Meanl) Ran e1) Measurements

3. Fi sh, Herbivore 6 (Mullet) pCi/kg Sr ND - NA ss 905 r ND yemitting ) ND isotopes

4. Turtle Grass (Turtle Grass) pCi/kg Sr ND ss 90Sr ND Yemi tting3) ND isotopes

5. Sponges (Sponge) pCi/kg yeml tting ) ND isotopes DS - Dissolved Solids UDS - Undissolved Solids ND - Not Detectable ~

NA - Not Applicable

TABLE I ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAH

SUMMARY

NAME OF FACILITY TURKEY POINT PLANT UNITS 3 5 4 DOCKET NO. 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 7 of 10 Al I Indicator Location with Highest Mean Control 2) No of Number of Locati ons Location Nonroutine ~

Hediun or Pathway Analysi s cAp e ocatlon Reported Unit for Sites San les Anal ses Hean ) Ran e ) Distance a Direction Mean ) Ran e ) Mean ) Ran e ) Heasurements San led 5.0 TERRESTRIAL

1. Small Animal (Racoon) pCi/kg Sr NO es 905 r NO Y emitting3) ND isotopes

2. Food Crops NA,. NA NA NA NA NA (Malanga, Corn pCi/kg Sr 3 NO Potatoes) Sr 3 2. 3 1.0- T52: Florida City 3.6 NA NA NA (2/3) 3. 6 Substation (7 miles W) (1/1)

Y emitting ) 3 ND NA NA NA NA NA NA isotopes

- Undissolved Solids - Not Detectable NA - Not Applicable DS - Dissolved Solids UDS NO

TABLE 1 ENVIRONMENTAL RADIOLOGICAL HONITORING PROGRAM

SUMMARY

NHE OF FACILITY TURKEY POINT PLANT UNITS 3 A 4 DOCKET NO 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page 8 of 10 All Indicator Location with Highest Hean Control 2) No. of Number of Locations Location Honroutine

'or Reported

'dium Analysi s amp e Locat on or Pathway Hean )

Sam led Uni t Sites San les Anal ses Hean ) Ran e ) Distance f Direction Mean ) Ran e ) Ran e ) Heasurements

3. Hilk (Goat Milk) pCi /1 yemitting )

isotopes 1 1311 ND . NA N NA N 2 137Cs ND NA N N N 3.Others ND NA NA NA N

4. Vegetation 7 7 (Hangrove leaves) pCi/kg Sr 7 ND NA N N NO'.6 u 90Sr 7 36 N T58: Entrance Road N ND (1/7) (Onsite - SI) (1/1) yemitting ) 7 ND N NA NA isotopes

- Dissolved Solids UDS - Undissolved Solids ND - Not Detectable NA - Not Applicable DS

TABLE 1 ENVIROtSENTAL RADIOLOGICAL HONITORING PROGRAH SUHHARY NAHE OF fACILITY TURKEY POINT PLANT UNITS 3 4I 4 DOCKET NO. 50-250 251 LOCATION OF FACILITY DADE COUNTY FLORIDA REPORTING PERIOD JANUARY 1 1984 - JUNE 30 1984 Page g of IU All Indicator Location with Highest Hean Control2) No. of Number of Locati ons Location Nonroutine Hediun or Pathway Analysi s Sanp e Locat on Reported San led Uni t for Sites San les Anal ses Hean ) Ran e ) Distance 8 Direction Hean ) Ran e ) Heanl) Ran el) Heasuranents

5. Soil (Soil) pCi/kg Sr ND NA NA ND NA 90Sr ND NA NA ND NA Y emitting )

isotopes I 137Cs 178,. 64- T55: Silver Palm Drive 260 NA 64 NA (7/7) 260 (7 miles - NNH) (1/1) (1/1) 2.Others ND NA NA NA NA ND NA DS - Dissolved Solids UDS - Undissolved Solids ND - Not Detectable NA - Not Applicable

Page 10 of 10 TABLE 1 NOTES

1) Mean and Range values based upon data with detectable results only.

( / ) Indicates the number of analyses with detectable results compared to the numer of analyses performed.

I

2) Control location - T64, Florida Power 8 Light Company - Natoma Substation (22 Miles - N).

3) Excluding Potassi~m - 40 ( K), Radon - 226. ( Ra), Thorium - 232 ( Th) and Beryllium-7 ( Be) which are naturally occurring radioisotopes commonly found in many environmental specimens.

SAMPLE DATE LOCATION TYPE REASON MISSING 02-14-84 T52 Preci pi tation Insuf fi ci ent Preci pi tati on for sanple at this location 02-14-84 T57 Preci pi tati on Sample was coll ected however sanple volume was too small for gamma scan and gross beta analyses 05-15-84 T64 Direct Radi ation The TLD's were collected, but data was lost due to personnel error. TLD's were, accidently zeroed 06-15-84 T52 Preci pi tati on The gamma scan analysis could not be performed due to l abor ato ry s pi l l age acci dent

• Key to sample locations is provided in Turkey Point Units 3 5 4 Technical Speci fi cati ons.