ML20116P123
| ML20116P123 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 12/31/1984 |
| From: | Stephenson B COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8505070500 | |
| Download: ML20116P123 (7) | |
Text
_ _ _ _ _ _ _ _ _ _ _
t 5.1 Gama Radiation External radiation dose from on-site sources and noble gases re.
l leased to the atmosphere was measured at ten indicator and fear reference (background) locations using solid lithium fluoride l
thermoluminescent dosimeters (TLD). A comparison of the TLD results for reference stations with on-site and off-site indicator stations I
is included in Table 5.1-1.
Additional TLDs, a total of 48 were installed on June 1,1980 such that each sector was covered at both five miles and the site boundary.
5.2 Airborne I-131 and Particulate Radioactivity Concentrations of airborne I-131 and particulate radioactivity at monitoring locations are sumarized in Tables 5.0-3 through 5.04, Locations of the samplers are shown in Figure 5.0-1.
Airborne I-131 remained below the LLD of 0.1 pCi/m3 throughout the year.
ranged from 0.010 to 0.053 pCi/m3 at Gross beta concentrations indicator locations and 0.010 to 0.056 pCi/m3 at control locations with an average concentration of 0.025 both at indic:.br and control locations.
No radioactivity attributable to statial operation us detected in any sample.
t 5.3 Terrestrial Radioactivity Precipitation samples were collected monthly from four milk sampling locations and analyzed for gross beta, tritium, strontium-89 and
-90, and gamma-emitting isotopes.
Except for gross beta, all other below the limits of detection indicating that radioactivity was there was no measurable amount of radioacilvity attributable to the station releases.
Annual mean gross beta concentration measured 29.1 pCi/1, which is the level expected in precipitation samples.
Vegetables were collected in August and analyzed for gross beta, In addition, strontium-89 and -90, and gama-emitting isotopes.
Gross beta leafy vegetables were analyzed for iodine-131.
green concentration ranged from 1.1 to 5.5 pCi/g wet weight and averaged 2.5 pC1/g wet weight. The range and mean values were those expected in the vegetation samples. All other isotopes were below the limits of detection indicating that there was no measurable amount of radioactivity attributable to the station releases.
grass samples were collected quarterly from milk Cattlefeed and
- sampling locations and analyzed for gross beta, strontium-89 and -90 and gama-emitting isotopes.
Except for gross beta, the level of radioactivity was below the detection limits.
Gross beta concen-trations were at the level usually encountered in these samples.
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~~Lf STANDARD RADIOLOGICAL SAMPLING PR,0 GRAM LaSalle County Station 1.
AIR SAMPLERS Site Code Distance Direction Location
(
_ miles)
(0)
L-01 a.
Near-site il L-02 b.
On-site Station #2 0.5 326 L-03 0.6 11 c.
On-site Station #3 L-04 d.
Near-site #4 0.2 56 L-05 1.5 90 e.
On-site Station #5 L-06 f.
Near site #6 0.3 145 L-07 g.
Seneca 0.4 270 L-08 h.
Marseilles 5.2 18 L-09 1.
Grand Ridge (C) 7.0 326 L-10 j.
Streater (C) 10.4 260 L-11 k.
Ransom 13.5 220 L-12 1.
Kernan (C) 6.0 191 L-13 5.0 m.
Route 6 at Gonnam Road 214 L-14 4.3 100 n.
Ottawa (C) 12.0 315 2.
TLDs l
a.
Same as No. 1.
b.
Special TLD Samplers
_ Site Code Distance
_ (mile)
Direction (0) 107 1,2 0.5 108 1,2 146 0.4 109 1,2 168 0.4 110 1,2 187 0.5 111 1,2 204 0.5 112 1,2 230 0.4 113 1,2 260 0.4 114 1,2 280 0.5 201 1,2 304 2.0 202 1,2 15 2.3 203 1,2 33 4.0 204 1,2 56 3.5 205 1,2 78 3.5 102 b
m,y%_
- w. ;
-- +. - -
STANDARD RADIOLOGICAL SAMPLING PROGRAM LaSalle County Station 2.
TLDs b.
_Special TLD Samplers (continued)
Distance Direction Site Code (mile)
(0) 206 1,2 4.3 123 207 1,2 4.5 146 208 1,2 4.5 170 209 1,2 4.0 192 210 1,2 3.3 216 211 1,2 4.5 240 212 1,2 4.0 261 213 1,2 3.8 283 214 1,2 2.0 303 215 1,2 2.0 330 N
216 1,2 1.5 350 3.
MILK Distance Direction Site Code Location (miles)
(0)
L-15 a.
Granby Farm
- 7.0 90 L-16 b.
Lowery Dairy 7.2 120 L-17 c.
Norsen Dairy (C) 9.0 337 L-18 d.
Sunnyisle Farm (C) 13.2 15 4.
FISH Distance Direction Site Code Location (miles)
(0)
L-35 a.
Marseilles Pool of 6.5 326 Illinois River l
L-24 b.
LSCS Cooling Lake o.3 ist
- Granby Farm replaced Johnson Dairy 4-20-84.
SSs.
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STANDARD RADIOLOGICAL SAMPLING, PROGRAM LaSalle County Station 5.
SURFACE WATER Distance Direction Site Code Location (miles)
(0)
L-19 a.
Illinois River at 6.5 326 Marseilles L-20 b.
Illinois River at 6.5 304 Ottawa L-21 c.
Illinois River 4.0 22 at Seneca (C)
L-22 d.
South Kickapoo Creek 4.7 330 L-23 e.
5.3 337 L-24 f.
LSCS Cooling Lake 0.3 112 near Recreation Area
- 6. COOLING WATER Distance Direction Site Code Location (miles)
(0)
L-25 a.
LSCS Intake Pipe /
4.9 to River (C)
L-26 b.
LSCS Discharge Pipe /
49 si River 7.
WELL WATER Distance Direction Site Code Location (miles)
(0)
L-27 a.
LSCS On-site Well At Station r eo l
L-28 b.
Marseilles Well 7.0 326 L-29 c.
Seneca Well (C) 5.1 18 L-30 d.
Ranson Well 6.0 191 l
L-31 e.
Ottawa Well 12.8 304 L-32 f.
Illinois State Park 6.5 326 Sk o-1 mm mw m
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Table 5.0-2 LaSalle County Radiological Monitoring Program, Sample Collection and Analyses Sample Location Collection Type of Frequency of Media GiIe 51te Frequency Analysis Analysis Remarks
- 1.
Airborne L-1 hearsite No. 1 lieekly Gross beta ideekly Di all samples.
Particulates L-2 Disite No. 2 Gaussa isot harterly Di quarterly composites from each location.
L-3 Disite No. 3
$r-89.90
@arterly On quarterly composites frosi each locatten.
L-4 Nearsite No. 4 L-5 Onsite no. 5 L-6 hearsite No. 6 i
L-7 Seneca i
L-8 Marseille L-9 Grand Ridge L-10 Streator L-11 Ransoe L-12 Rernan L-13 Route 6 at Gonnas Rd.
L-14 Ottama 1
2.
Airborne Same as 1.
lieekly 1-131 Ideekly Qi all samples.
loelne 1
3.
TLD Same as 1.
Quarterly Gamma g
. tat.14 Inner Ring Warterly Two se n at all AP locations. Die set wa 201-16 Outer Ring read quarterly. Second set read if P
required by Edison. At other locations.
all sets read quarterly, i
4.
Milk L-15 Johnson Detry*
neeekly: Apr to Sep l-131 Ideekly May thru October only. LLD: 0.5 pct /l L-16 Lowery Detry Monthly: Oct to Mar Gassna Isat Monthly i
L-17 horsen Dairy Sr-89.90 Monthly L-18 Sunnytsle Fare I
5.
Surface L-19 Illinois River at neeekly Gross beta lieekly Qi all samples.
b heter Marseilles Gamma Isot Monthly Qi monthly composites from each location.
i L-20 Illinois River at Ottawa Trittue barterly On quarterly composites from each location.
L-21 111tnots River at Seneca Sr-89.90
@arterly On quarterly cosposites from each location.
j L-22 South Kickapoo Creek L-23 Illinois River at Intake to Nitrogen Corp.
L-24 LSCS Cooling Lake near Rec. area j
6.
Coollag L-25 LSCS intake pipe / lieekly Gross beta ndeekly Qi all samples.
lister river Gassna isot Monthly Di monthly composites from each location.
Tritium Monthly On monthly composttes from each location.
rtver Sr-89.90 Monthly On monthly composttes from eac location.
l
- Granby Fare replaced Johnson Dalry effective 4-20-84.
i 1
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n REPORTING LEVELS FOR RADI0 ACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Reporting Levels Water Airborne Particulate Fish Milk Food Products Analysis (PCi/1) or Gases (pCi/m )
(pCi/Kg, wet)
(pCi/1)
(pCi/Kg, wet) 3 H-3 2 x 10 (a) 4 3
4 Mn-54, 1 x 10 3 x 10 2
4 Fe-59 4 x 10 1 x 10 3
4 Co-58 1 x 10 3 x 10 2
4 Co-60 3 x 10 1 x 10 2
4 Zn-65 3 x 10 2 x 10 co 2
P Zr-Nb-95 4 x 10 2
I-131 2
0.9 3
1 x 10 3
3 Cs-134 30 10 1 x 10 60 1 x 10 3
3 Cs-137 50 20 2 x 10 70 2 x 10 2
2 Ba-La-140 2 x 10 3 x 10 I")For drinking water samples.
This is 40 CFR Part 141 value.
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- 8 N Commonwe lth Edison
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72 Wrst Adrms Strut, Chiefgo, Illinois Addrcss Reply to: Post Office Box 767 Chicago, Illinois 60690 e
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April 18, 1985 wt L
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b N5 Mr.' James G. Keppler Regional Administrator git y_
Directorate of Inspection and Enforcement Region III U.S. Nuclear Regulatory Commission 199 Roosevelt Rcad Glen Ellyn, IL 60137 Dockets:
No. 50-373
Dear Mr. Keppler:
The enclosed is corrected material for Part 3 of the 1984 LaSalle y County Station Annual Operating Report, reporting results of environmental radiological and meteorological monitoring.
One copy of this errata is provided for your use and 39 copies are being submitted directly to Mr. D. Eisenhut, Deputy Director of the Office of Nuclear Reactor Regulation.
_u
, Sincerely yours,
[
$1 Manager of Production Nuclear Stations Divis' ion cc:
G. J. Diederich EPG-01-Re-Radc R b5 I s
gpg29 1985 BBS/Imk
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