ML19224A930
| ML19224A930 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/12/1979 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| OLE-790412, NUDOCS 7906130249 | |
| Download: ML19224A930 (72) | |
Text
.
o 50-320 Helicopter Data On-Site and Off-Site Surveys 3/30/79 - 4/12/79 l
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s 177 188
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oldsboro-*
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APPX SCALE 8
Miles 0FFSITE GROUND L'EVEL GAFFA SURVEYS performed in the predominant wind direction showed a maximum of 0.6 mr/hr at 600 yards from the plant to a low of 0.06 mr/hr at distances of 2 to 3 miles.
An exception was during the collection of a sample from the waste gas decay tank when gamma levels of 3 mr/hr were measured at a distance of 500 yards east of the plant.
177 190
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177 191
tr/Mc d 3I ARrns DATA T'/ m E 2 30 - 3: 30 f m R o.u n n ng /w ind s ou n' "=
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19 N
Miles 177 192 k
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oldsboro#'I.
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s 19 Miles 177 193
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s 19 W
Miles March 29,1979 lQ:30 p.m.
Plume in a NW direction, width about equal to width of river. Plume touches down about I mile from plant at Hill Island.
Radiation measurements at east shore line at Hill Island, _4 mr/hr; one mile north of Hill Island, I mr/hr; and at five miles from the plant, 25 - 50 microrcentcens/hr.
177 194
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oldsboro# '
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j Mile ;
- s March 29, 1979 8:00 p.m.
Survey aircraft circled the site at distance of about 8 miles at altitude of 1000 feet.
No detectable plume; "cockets" of residual radioactivitv were detected witn raalation readings in tne range of of 25 - 50 microroentcens/ hour.
177 195
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oldsboro "
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'PPX SCALE 8
d 9
10 Miles March 29, 1979 5,:00 p.m.
Residual cloud (Xe-133) N to NW between Mechanicsburg g and Hershey, Pennsylvania.
Radiation measurements in the cicud in the microrcentcen/ hour rance, highest readings in cloud center.
B Ground level measurements on the island indicated a plume in the southerly direction. Radiation measurements at fenceline south of plant were 10 mr/hr, and one-half mile } (( lhh south.of fenceline, 0.5 mr/hr_.
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S 10 Miles March 29,1979 10:45 a.m.
Plume in a N to NW directicn.
Primarily Xe-133.
Radiation T.easurements in the plume at abcut 10 miles frcm plant in centerline of plume were 0.2 mr/hr; at 1 mile frem plant, about 0.5 mr/hr maximum.
177 197
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Miles March 23, 1979 8:00 p.m.
Plume in a N to NW direction. Primarily Xe-133.
showed 'acout 0.1 mr/hr.Over Harrisburg, radiation measurements in t At 10 miles from the site, the plume was about 4-5 miles wide; too of plume at about 3000 feet.
177 198
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10 Miles March 28, 1979 4:30 p.m.
Plume in a N to NE direction, about 30 sector.
Primarily Xe-133.
At distance of about 16 miles, radiation measurements in the plume were abcut 0.1 mr/hr.
177 199
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177 201
Attachment (2) m p[
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3 mr/hr @ l mi 95
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0.5 mr/hr @ 3 mi ? 200 ft.
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AFFX SCALE 8
. 5 0
q 10, t o.2 =r/hr 3.10 mile s h Miles
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April 1, 1979 AERIAL SURVEY plume direction and radia: ion readings shown above conducted at 9:00 AM.
177 202
Attachment (1)
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Island oldsboro-*
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'-3 mr/hr
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@ 1/2-1 miles and 500 ft.
Ns 3 -0.6 =r/hr
@ 3 miles
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APPX SCALE 8
0 5
10 h
\\,
Miles
~
April 1, 1979 AERIAL SURVEY pluce direction and radiation reading; shown above conducted at 6:00 AM.
177 203
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gg Survey ack cdc All crthers
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APPX SCAi.e 8
Q 5
10
, 7..s Miles W
March 30, 1979 Time: approximately 4:00 a.m. - 5:30 a.m.
An NRC 'urvey team took radiation measurements frcm a vehicle traveling both sides of the Susquehanna River.
Radiation levels were highest near Cly, a community just south of the plant on the west side of the river.
The level at Cly was about 0.2 mr/hr. With the exception of the reading of 0.1 mr/hr at the Observation Center. the
,/7 204 remainder of the readings on the route were less than 0.05 mr/1r.
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177 205 e
(
ARM Flight - 4/12/79 - 0938-1016 Reported by Geruskey - State of Pennsylvania Distance Altitude Sector Dose Rate mR/hr 1 mile 700 ft.
300 bkgd.
1 aile 500 ft.
315
.030 3 miles 700 ft.
270
.008 4.5 miles
?
?
bkgd.
Reported 1400 - 4/12/79 Sly 177 206
)
/
BMurray 4-5-79 Grcund Survey Results - 4/5/79 MILE 7 JOB L 1.
NRC Survey per Dan Montgomery (site) 4/5/79 Winds at 250 -325' Location Radiation Levels West side of River
<0.01 mR/hr East side of River 0.01-0.15 mR/hr 2.
ARMS Survey 1430 hrs 4/5/79 Plume at 110'-120 at 300 feet Distance (miles)
Dose Rate 1
0.1 mR/hr 2
0.1 mR/hr 5
0.05 mR/hr 7
0.05 mR/hr 10 0.03 mR/hr
9_
b Kotsch Disk e MILE 7 Job: H 4/5/79 HELICOPTER DATA ARMS f:
Date: 4-5-79; received 1120 hrs.
ARMS flight at 0950 identified plume in sector 125 -130.
Measurements:
1 mi.
.3 mR/hr
.05 mR/hr 3 mi.
10 mi.
.03 mR/hr Radiation measurements made using a portable gamma scintillation survey instrument.
e 177 208
r--
f, 4/4 ARMS 1520 1545 flight Narrow plume @ 500' level
@ l mile s5 x bkgd (*.1 m/ rem)
@ 2 miles s3 x bkgd (s.06 m/ rem) M '
O tec' a with a few spikes @ 290 plume is in sector 270-300 l
D 9'
E.
L.
177 209
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t dep por d
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v OFF SITE DATA B36 b
4-4-76 ARMS FLIGHT 0000-0100 hours
~~
4.
Ceiling at 800 H 1.
Circle at 1 mile at 500 feet Plume 220* to 255*
Maximum rate 1.1 mR/hr 2.
Circle at 3 miles Plume 215 to 230*
Maximum rate 0.5 mR/hr 3.
Circle at 6 miles Plume 210 to 230 Maximum rate 0.3 mR/hr 4.
Over river 1/2 mile from plant Plume 185 to 210 Maximum rate 0.8 mR/hr Next flight 0300 177 211
<\\
i h.x-HELICOPTER OFF-SITE DATA Date: 4/3/79 Daty for distance away from TMI in the plume. As of 0800 the wind direction was from 270 -325.
Time Distance (Mi) '
Readina (mR/hr) 0900 0.25 1.7
' ' ~ ~
1.0 0.8 3.0 0.5 5.0 0.4 6.5 0.3 1200 1.0 2.0 3.0 1.2 6.5 0.5 e
u-
~
T f
Licensee Helicopter On Site Data R-200 4-9-77
~ ~ ~
Readinas (mr/hr)
Time Location Beta Gamma Gamma 1148 North End of Island 9 500 feet 1.5 mr/hr 1230 North End of Island @ 500 feet 0.4 mr/hr 1310 Unit 2 Screen House @ 450 feet 5 mr/hr 1315 Unit 2 Screen House @ 450 feet 1.5 mr/hr 1317 Unit 2 Screen House @ 450 feet 4.5 mr/hr 1330 Unit 2 Screen House @ 450 feet 20 mr/hr
~ - ~
1335 Unit 2 Screen House @ 450 feet l' mr/hr 1340 Unit 2 Screen House @ 450 feet 3 mr/hr 1345 Unit 2 Screen House @ 450 feet 5 mr/hr 1352 Unit 2 Screen House @ 450 feet 2 mr/hr 1400 Unit 2 Screen House @ 450 feet 2 mr/hr 1405 Unit 2 Screen House @ 450 feet 1 mr/hr 1420 Unit 2 Screen House @ 450 feet 12 mr/hr 1445 Parking Lot @ 500 feet
<.1 mr/hr lb
l
^
HELICOPTER OFF-SITE DATA B-34 4-2-79 Arms Flight 0600-0615 hours 1.
Plume direction was NW from plant.
2.
Maximum levels reading 1.0-1.5 mR/hr.
.g.
3.
Wind S&D 140 at 15 knots.
Flight time was limited
'.:) 15 minutes oue to fog.
177 214
i
(_.
,l~~
HELICOPTER OFF-SITE DATA B-33
- - ~
4-2-79 Arms Flight 0300-0400 hr 1.
At 1 mile.
Plume WNW, 0.5 mile wide, max. 1.5 mR/hr.
2.
The 1.5 mR/hr was observed most of the time.
3.
Wind S & D 140 at 15 knots.
4.
At 2 hales, max. 0.5 mR/hr, top of plume at 800 ft.
ip 177 215
r-" :
- 5 v
Licensee On-Site Data Date:
4/2/79 Heliccater Data R194 Time Location Reading (MR/HR)
Beta Gamma Gamma 0317 600 ft. up, north gate
<0.1 700 ft. up, from north gate to unit 2 cooling tower 0.2 0.3 0.4 0.9 1.5 0345 700 ft, up, vent, cooling tower i
700 ft, up, unit 2 Rx b1dg.
0.5 700 ft. up, unit 2 cooling tower 1.3 5 46 700 ft. up, over THI 3
700 ft. up, north gate
<1 700 ft. up, west above 0.6 1
177 216
4i
-p
- i
!!ELICOPTER OFFSITE DATA R-192 4-1-79 Time Lecation Reading (MR/IIR)
Deta-Gamma Gamma 2148 800 ft up, hill no. 1 south tip 0.7 800 ft up, hill no. 1 north tip 0.5 2022 700 ft up, south tip, hill no. 1 0.2 700 ft up, center hill no. 1 1.3 700 ft up, 3/4 up hill no. I 1.4 700 ft up, north tip hill no. 1 0.2
(
700 ft up, control tower 0.4 700 ft up, iiu.t'. runway 0.3 700 ft up, turnpike branch 0.1 700 f t up, liighspire 0.3 2133 580 ft up, north parking lot 0.1 580 ft up, unit I warehouse
- 1. 0 1.5 580 ft up, unit 1 Rx bldg 2.0 580 ft up, north of unit 2, Rx bldg 6.0 580 ft up, south end of THI
<1 2133 580 ft up, unit 2 screen house 0.2 580 ft up, between screen houses 5.0 580 ft up, north of unit 1 screen house 2.0 580 ft up, out from warehouse 1.5 2143 500 ft up, time gate
<0.1 500 ft up, warehouse 0.3 500 ft up, Unit 1 cooling tower 1.0 500 ft up, north gate 2.0 "dir 500 ft up, hill 1 1.0
's2305 700 ft up, east-west hill island 1.1
'42310 700 ft up, north island 1.0 700 ft up, center island
- 1. 2
[)f 700 ft up, south island
<0.1 700 ft up, north Shelly Island 2.0 ssa 700 ft up, middle Shelly Island
<0.1 700 ft up, south Shelly Island
<0.1 700 ft up, North Gate
<.01
.t
- l.
/
B-3R LICENSEE ON-SITE DATA April 1,1979 DOE ARMS FLIGili - 2100 to 2115 il00RS Condition:
Rein and Fog Plume from 270* - 315*
At 500' Reading 0.5-0.75 MR/i!R Waiting for Better Flight Conditions m.
N hJ
~
c Licensee On-Site Data Date:
4/1/79 Helicopter Data R191 Time Location Readino (MR/HR)
Beta Gamma Gamma 1543 800 ft. up, unit two Rx bldg.
3 800 ft. up, utility bldg.
9 800 ft. up, security bldg.
15 800 ft. up, count between security and site fence 5
800 ft. up, site fence 3
700 ft. up, 2 mi. south 0.1 2012 500 ft. up, unit 1 warehouse
<0.1 500 ft. up, unit 1 screen-house 10.5 500 ft. up, unit 2 screen-house 2.0 500 ft. up, unit 2 collector tanks 4.0 500 ft. up, south of unit 2, tanks 0.5 500 ft. up, west of unit 2 tanks
<0.1 500 f t. up, all other 'urimeters
<0.1 2023 600 ft. up, unit 1 warehouse
- 0. 5 600 ft. up, unit 2 screenhouse 5.0 600 ft. up, unit 2 collector tanks 4.0 2023 600 ft. up, unit 2 collector tanks 1.7 600 ft. up, south gate 0.3 177 219
m!
't
- D '..!! ;
Disk #MILEl Job:
I b["[~'I')
0FF-SITE DATA ARMS Flight Data fro 1800-1900 hrs:
On a one mile radius flight around plant at 500', plume was at 500', plume was at 220* to 250 with a maximum reading of 0.5 mR/hr.
On a three mile radius at 500', plume was at 240 to 260 with maximum reading of 0.1 mR/hr. at 3 miles, top of plume observed at 600'.
U>-
All readings with hand-held GM.
rsa Visibility dropping; not sure of time of next flight.
N CD
}& '
Licensee On-Site Data Date:
4/1/79 R191 Time Location Readina (MR/HR)
Beta Gamma Gamma 1256 600 ft. up, toward Bainbridge 0.2 0.1 800 ft. up, toward Bainbridge 0.3 0.1 1323 600 ft. up,falmouth 0.1 0.05 700ft.up,['almouth 0.1 0.05 800 f t. up, f-almouth 0.2 1410 700 ft. up, south end of island 1.5 0.4 1420 800 ft. up, 5 end of island 6
1.5 17722)
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Oate 4/1/79 Offsite 11elicopter Data R-152 Time Location Reading _(MR/hr}
0310 500 feet up - east of Unit 2 20 0409 500 feet up - east of turbine b1dg 2.5 0410 500 feet up - east of Unit 2 RX b1dg 4
0410 700 feet up - east of Unit 2 RX Bldg
!S 0410 650 feet up - over 500 KV substation 10 0410 650 feet up - over observation center 8
o' 0416 700 feet up - 1/2 mile east 500 KV substation 5 0420 700 to 800 feet up - 1 mile east 500 KV substation 6
0420 700 to 800 feet up - i cile 'ast 500 KV substation 2
0421 700 to 800 feet t:p - 2 *,'le ist 500./
substation 2
0427 700 to 800 feet p it uth 443 ECT 0.1 0428 650 to 800 feet up
.c cbservation center 20 0431-0445 650 feet up - over 5.'0 nV suost:. tion 30 800 feet up east 500 KV
>t'; station 10 700 feet up - east 500 (V stbstation 12 700 feet up - 1 1/2 @ t east 500 KV substation 3
o
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I
- l Off-511E HfllCOPIER DATA B-24 Y
f i
.1
{
Date:
4-1-79 ARMS FLIGHT - 0145 hours0.00168 days <br />0.0403 hours <br />2.397487e-4 weeks <br />5.51725e-5 months <br /> to 0230 hours0.00266 days <br />0.0639 hours <br />3.80291e-4 weeks <br />8.7515e-5 months <br /> 1.
flew at 1 mile circle at 500 feet altitude 1
Plume direction east from the plant l
Haximum 1 mR/hr t
I, 2.
At 2 miles at 500 feet altitude Maximum was 1.0-1.2 mR/hr i
I i
3.
At 4 miles at 600 feet altitude 100 pR/hr Plume from the plant due east 4.
Winds are light and variable INfCRMAI!ON PROVIDED BY lom McGuire 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> N
l N
N i
N CO
f' I
Off-SITE DATA D-23 I
f
.. 's (
Date:
4-1-19 I
o ARHS flight Data for 0030-0100 hours:
f i
1.
flew 1-mile circle at 500 feet altitude Plume whith ar d direction 85*-120*
1 1 a.R/hr maximum 2.
Few 3 mila circle with a maximum of 0.05 n,R/h-1 3.
Top of plume was at 600 feet flight terminated - fog
~
N l
N N
i so I
I J
i
7 F
1 l
l OFF-5fiE ltELICOPIER DATA (Continued)
R148 i
f i
{
s Date:
3-31-19, 4-1-79
.I e
day location Reading (rR/hr}
Beta-Gama Gamma r
i 700-f00T IfVEL (Continued)
~
2340 0.5 mi. E of Observation Center 20
{,
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(4-1-19) 0000 N-5, 0.5 mi. W of Radio Tower 1.5 - 0.2 I
i 0005 Middletown Junction N-S L 0.1 0010 S of IMI Unit 2 to 500 kV N
Station (800 feet) 5 N
0015 0.25 mi. 5ofTHIand500k/
O Station (800 feet up) 1 i
t OFF-5ITE HEllCOPTER DATA (Continued)
R148 f
f f,
Date:
3-31-19, 4-1-79 I
e Time location Reading (64/hr}
Beta-Gama Gamma p'
6 700-f00T ttVfL 2320 Unit 2 TJrbine Building 20 I
I I
2334 Mitt 11e t ubstation 10 i
i 2325 0.5 mi. E Obser.ation Center 15 0.25 mi. t Observation Center 25 N of Obser vation Center 0.5 Going 5 from Observation Center 20 Going 5 from Observation Center 19 ssa Going S from Observation Center 10 l
'J 500 kV' Substation IN )
(0.5 mi. from Observation Center) 0 s
( 84 j
l l
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OFF-SITFallf t ICOPIER DATA R148 f
n g
YSua1E ON -J/W i
r llate:
3-31-?9, 4-1-79 I
Dme iocation Readinq (mP/hr)
Beta-Gama Ganima y
cl 8f 0-f 00i_M nt_
2045 Unit 1 "A" MDCT 0.3 ll I
2045 SE 2 al. out 0.2 c
I 2050 0.5 mi. E IMI 1.4 iO53 North Gate 0.01
~
2053 Unit 1 "A" NDCT 0.05
%J NJ I
N 2055 E Unit 2 NDCT 6.0 V4 N.)
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Offsite Helicopter Data B-22
..)
Data 3/31/79
)
s Time location Reading (MR/hr)
I Between 2l00 and 2140 Measured extent and Plume Width i
(Air force llelicopter) at 500 feet
/
Note:
1.
At I mile Max. 0.8 at 045-075 degrees
/
Measurements Made At 3 mile Max. I at 070 - 090 degrees l9 With GH5M - Not yet At 10 miles Hax. 0.15 at 070 - 080 degrees standardized with an At 15 miles Max. 0.15 at 070 - 075 degrees ionization chamt.er 2.
Altitude spirals 6
I At 3 miles 750 feet top of plume At 15 miles 850 feet top of plume Wind speed 3-5 knglyshiftincslowly.
next flights 0000 hrs, 0300 hrs, 0600 hrs, 0700 hrs.
Reported t,y John Tif ton Arms 3/31/19 2300 hour0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br /> j
i N
N i
u U
i 1
1 0FF-SITE DATA
(
F r
.. h
[
Date:
3-31-79 I
ARMS Flight Data for 1843-1945 hrs:
i F
6 Plume extends generally E to ESE i
t t,
lI One mile radius flight at 500' showed max of 2 mR/hr at the above direction.
l At 3 miles out the reading increased to 3 mR/hr at 500' with top of plume at 1000' j
i At 8 miles out at 500' the level was 1 mR/hr.
Wind speed was 4 knots /hr.
~
*J Ihe ARMS group thought that there was a "puf f" at about 1800 hrs based on the higher readirg at 3 miles;
'*sj i
the higher reading may have been due to return of a " pocket" considering the light and variable winds.
INm)
( r4 j
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DA1E 3-31-19 OFFSITE DATA R144a-k llellcopter AeaJings 11HF (f5T}
10CAf!ON PEADING (mR/hr)
Geye/s Church Rt 232 Observation Center at 600' 1533 O.1 1555 Black swamp, high spot South of Island 1.3 (R. fruit) to Black swamp to substation 1932 East Side Hill Island
<0.1 1934 Shelley Island
<0.1 1936 11111 Shelley Island at 900'
<0.1 2005 Middletown Junct. at 800' 3
2008 1 mile 060 degrees (ENE) at 1000' 4.5 h'
i u,,!-
q
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t
..._.__.......4 R144a-k 0AIE 3-31-19 CNSITE DATA i'elicopter Readings TIME _{ESl]
LOCATION READING (mR/hrj EA A
1520 N. Unit -1 (NDCI) A at 600' O.5 U-2 Reactor Bldg at 600' 6
NE U-l NOCI -B (Iowers) at 600' 2
U-l luibine Bldg at 600' 8
SW U-2 NDri-A at 600' O.5 N 0-1 NOCT-A at 600'
<0.1 t
i E of U-l NOCI-A at 600' 1
West Bank at 600' O.1-0.2 1620
$E of Island East U-2 NDCT at 600' O.1 Above Unit 2 Reactor Bldg at 600' 6
West Channel at 600*
<0.1 1813 NE across site above Unit 2 Control Room 0.1 1841 North End of Island 0.3 1855 Due East of U-2 Containment 20 1900 East of U-2 Reactor Bldg at 680'
- 2. 5 1905
\\ mile east of Observatio. Center at 700' l.5 to 2.0 1905
\\ mile east of Observation Center at 700' 5
1907 1 mile east of observation center at 100' O.5 1910 East of 500 ku substation at 900' 2
1930 U-2 Reactor Bldg 1.5 1930 0-1 Cooling Tower
<0.1 1940 East of U-l Ccoling Tower 2
1945
\\ mile radius of 3 mi at 900'
<0.1
<0.1 1950 General Area at 900' l
'*sj 1950 Uighest Reading at 900' 2
2
,sj 1951 230 KV substation at 900' 2
1955 NL U-l NOCI at 900' 5
2000 NE U-l NDCT at 900' 2-3 2005 North Gate at 800' 3
l I*')
l ^4 2006 Straight Line between M & THI 3
9 0FF-51TE DATA o
Date 3/31//')
ARMS F I';'.. data f or 1430-1640 hrs:
A'. one mile radius of 500', maximum level was 3mR/hr at 110*-140*
(readings with 6"h instrunient)
In an altitude spiral at 3 miles, top of plume was at 1700' with a maximum level of In R/hr at 500' Cou d not fly any lower than $00' because of weather.
Due to high variability of winds, plume shifted to south of plant so above
/
j measurements no longer hold.
~
Raining hard with win.1 squall situation.
N l
N g
Ne=t ARMS flight scheiluled for 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br />.
U N
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7 3
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s Date: 3/31//9 Off-5ITE DATA
[3/f ARMS overflight report for-3/31/19, 1200 to hMS hours:
E ssentially no criange f rom earlier two overflights.
Plume direction is from 030* to 060*
Maximum readings cbserved (beta gamma):
1.5 mR/tir at I mile at 500' 1.5 mR/hr at 3 miles at 300' At 3 miles plume top observed at 2,800' Plume is on the ground at 3 miles.
N No iodiae observed; xenons are the only activity.
N Nu I
e
V ON-SITE DATA R137 s
Date:
3-31-79 Helicopter readings at 600 feet TimeIEST) location Reading (mR/hr) 1200 West Side of Island 0.1 - 0.25 A Cooling Tower 12 N Parking tot 2
8 Cooling Tower 10 1300 East Cooling Tower 4.0 - 5.0 N
N
-ts.
C22)
O f o o - /t' l 5 Off-SITE DATA
)
3/31/79,..
3
'~~-
Ting: 9:00 - 10: 15 am
(
-A R M S' '~ ~ - Data collected 3/31/70 0600 - 0715 Still good g/
- ARAC Projection are in good agreennent with.gr plume. Source term 7 will be attempted
[S-SW,5-10 knots Winds to remain light and variable. This afternoon winds will MO N
N I
n a
/] et,.
/
('
er Off-SITE DATA j
s Date:
3-31-79 ARMS FIlght Data for 06ud-0715 hrs:
At 1 mile radiu'. circled site at 500' Peak readings obtained NE of site were 2-2.5 mR/hr. with a reading of 0.7 mR/hr. at 1000' Other readings showed less than 1 mR/hr out to 7 miles, 0.5 - 1 mR/hr to 10 miles, and from 10 miles out to 30 miles levels were 0.1-0.2 niR/hr.
The plume was 1-1/2 - 2 miles wide the full distance. The max. width was 2 miles at 20 miles out at 500' A sharp
~
N N
di tinction of plume top was noted at 600-700' from 5-30 miles out.
N h
At 27 miles out on a heading of 060*, plums top was at 600' and extended all the wasy to ground.
N Next flight scheduled for 0900 hrs.
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nab E
T OFF-SITE DATA 3/11/79 arf tS F L IGHT TIME 0015-0115 1.
Ilew at 1 mile radius at $00-1000 ft alt max reading was I mR/hr 0
0 2.
Angular extent and directien 20 wide 010 3.
Wind Condition from 240 speed 10 knots 4.
Radial 100 at 500 ft followed the plume to 18 miles 5.
Alt spiral at 6 miles from the plant 1500 -300 ft profile. Top of plume 800 ft.
Maxreadingat300ft(1.50pd/hr) 6, Next flight at 0300.
e
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Off-SITE DATA 3-30-79 e
ARM 5 - FLIGifT WilH lifdD ltELD INSTRtlMENT BETWEEN 2120 AND 2225 tiR 1.
Flew circle 0 1 mi radius 0 500 and 1000 ft alt. max. reading on 1 mile was 0.5 mR/hr 0 500 ft.
2.
At 3 mi out, at 330", performed altitude spiral from 1500 to 300 f t.
Top of cloud at 1000 ft; max at :90 ft, decreased dewn to 300 ft where they had to pull up.
3.
Tracked on radial at 330 heading; 500 f t. altitude found levels of 100-200 pR/hr all the way out to 18 r.'
- where had to break of f Lecause of a ridge.
4.
0 $ mi out; made 1/2 circle across above radial; plume cut about 30-40 sector.
5.
W h-J 0 500 f t frun 150 0 10 knots, 0 1000 ft from 200 0 20-30 knots.
6.
Tipton said that they will attempt to standardize survey in above format.
7.
Tentative schedule is one flight about every 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> around the clock for next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or so.
N N
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s b
CX3
ON-SITE DATA Date:
3"30-79 ARMS TIME LOCATION Reading (mR/hr) 2105 south Unit 2, MDCT, 550 ft. up.
10 2105 south Unit 2, turbine bldg. 550 ft up 10 2105 south reactor bldg., 550 ft up 15 2105 north of Unit 2 reactor bldg., 550 ft up 100
?l05 Unit I screen house, 550 ft up 10 2105 Unit 2 screen house, 550 ft up 20 2105 north Unit 1 MDCT, 550 ft. up 130 2105 south Unit 1, MDCT, 550 ft. up 100 2105 between reactor bldg., 550 ft up 20 2105 north Unit 1, reactor bldg. 550 ft. up 10 2100 wes; Shelley Isiand, 700 ft. up 0.1 2120 Crawford Station 25 oy.25 y 2130 Omstead Plaza 0.5 py
~
'~sa 2300 Unit 2 turbine west, 500 ft. up
<0.1 N
2300 Unit 2 MDCT, 500 ft. up 5
I's) 2300 wc 6 of warehouse, 500 ft. up 18 A
s C) 2300 west of north tip of island, 500 f t. up 9
s
ON-SITE D.ATA Date: 3/30/79 Ilme _lE STl location Instrument Reading Remarks 1355 Over Unit 1 Cooling Tower North Htlicopter 10-55 mR/hr dt 500' 1358 l mile north of site at 550' 10 mR/hr a
1415 Over south cooling tower at 550' 0.5 mR/hr 1415 over RB at 500*
100 mR/hr 1415 Over RB warehouse at 520' 150 mR/hr 1530 Westside of Island at 620' 5-35 mR/hr perrtAtt '
1/05 Over Screen House at 600*
18.0 mR/hr Data pt. Pete* tid ly-illegible on report received at Hdqtrs; may be It10 mR/hr
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2 T h>e {EST) location I ns t ruren t Readtng Re ma rk s 1400 Northeast 11111 Island at 550' IMlicopter 2-5 r.R/hr.
1405 15 mi. north of Island at 550*
2 rR/hr.
iWI hh.e tt. F f.*
c.t fi'O' J m R /Ar*
1410 OverSunsetGolfCourseat600*
3 n:R/hr.
1410 Over tilli Island at 600*
5-12 mR/hr.
1410 Over Hill Island (going from LUu+ 4e 5-50 nC/hr.
f;,6,* 43'o')
1655 One mile west of Island at 600' 4 mR/hr.
Ih55 One mile northwest of Islant at 600' 1.5 mR/hr.
1655 (he mile northwest of Island at 600' 1.2 mR/hr.
1655 One mile northwest of Island at 600' 0.1 mR/hr.
1b55 One mile east of Island at 600' 0.1 mR/hr.
1713 3/4 mt. west of Island at 500*
20 mR/hr.
s 1713 West bank at 500' 2 mR/hr.
J
'~sJ 1714 Over Gol,,sboro at 600' 2 mR/hr.
N m..
1715 One-half is west at 500*
65 mR/hr.
I's?
1715 3/4 ml. west at 500' 20 mR/br.
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f OFF 6tJ-SITE DATA Date: 3/30/79 Itne (Q11 location Instruwnt Reading Remarks 1230 Over dtelley Island FM at 550' Helicopter 20 mR/hr.
Note: All helicopter readinvjs t,e ta-qama 1315 East of Island at 600' 2 mR/hr.
1324 Shelley Island W at ?
10-20 mR/hr.
1326 Over Shelley Island at 620' 16 mR/hr.
1328 Over 11111 Island at 700' 7 mR/hr.
1331 Over 11111 Island at 850' 7.5 mR/hr.
1332 Over 11111 Island at 1100' 2.3 mR/hr.
1333 Over tilli Island at 950' 10 nR/hr.
1333 Over Hill Island at 150' 6 mR/hr.
1334 Over Goldboro at 700 1.5 mR/hr.
'N 1335 Over North Bridge at 720'
< 1 :nR/hr.
N 1335 observation Center at 720' 1.5 mR/hr.
l LTl 1340 Over 11111 Island at ?
l-12 mR/hr.
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