Annual Report for 2010/11 and Forward Programme - Sellafield Ltd

More documents

Recommendations

Info

SSEM/2011/4730 June 20114. How many particles are there?4.1 Can we calculate the number of particles in terms of:4.1.1 Total particle number?4.1.2 Sub population numbers?4.2 Can we estimate from beach ‘finds’ what the total numbers of particles are?How many particles are there?4.2.1 Define the population of stones, i.e. what was found, where it was found and when it was found?4.2.2 Are we looking in the right place(s) for particles (sand/shingle/cobbles)?4.2.3 Are there sub populations of particles and how do their spatial distributions vary?4.3 How many particles are available for detection at any given time?4.3.1 How many are mobile?4.3.2 What is the repopulation rate?4.3.3 Are there ‘non-natural’ means by which particles are moved/redistributed in the environment, suchas by Trawlers or Dredgers?4.4 Can we reliably model the numbers of particles?Key Workstreams:Beach Monitoring ProgrammeOffshore Monitoring ProgrammeStatistical Analysis Contract© Nuclear Decommissioning Authority 2011. 91
SSEM/2011/4730 June 20115. What is the activity distribution of the particles population?What is the activity distribution of the particles population?5.1 What are the key radionuclides and how many particles of each type are there?5.2 What LOD do we need to achieve?5.3 How many particles do we need to analyse by:5.3.1 Coarse screening?5.3.2 Detailed analysis?5.4 What does the activity of ‘Finds’ tell us about the distribution of the ‘True’ populations?5.5 Is there a temporal change in the activity distribution (including spatial – Q3)?5.6 Does any temporal change tell us about the source term (refer to Q2) or ultimate environmental fate?5.7 Can we reliably model the activity distribution of the particles population?Key Workstreams:Beach Monitoring ProgrammeOffshore Monitoring ProgrammeStatistical Analysis Contract6. Where are the particles going?6.1 Are they moving into high risk areas such as Mussel beds?Where are the particles going?6.2 Over what time-frame do particles move from their ‘original’ location (both on and off-shore) to their‘current’ location?6.3 Are we observing re-population between on-shore and off-shore particles or does location remainstatic (i.e. covered to uncovered at the same location)?6.4 How long do they remain as ‘particles’ in the environment?6.5 What is the maximum distance an independent particle can travel in the marine environment off theWest Cumbrian coast?6.6 Can we reliably model the transportation and dispersion of particles?Key Workstreams:Beach Monitoring ProgrammeOffshore Monitoring ProgrammeStatistical Analysis Contract© Nuclear Decommissioning Authority 2011. 92
Page 1 and 2:
Particles in the EnvironmentAnnual
Page 3 and 4:
SSEM/2011/4730 June 2011ContentsPur
Page 5 and 6:
SSEM/2011/4730 June 2011List of Tab
Page 7 and 8:
SSEM/2011/4730 June 20111. Introduc
Page 9 and 10:
SSEM/2011/4730 June 2011Figure 2.1.
Page 11 and 12:
SSEM/2011/4730 June 2011In August 2
Page 13 and 14:
SSEM/2011/4730 June 20112.3.4 Find
Page 15 and 16:
SSEM/2011/4730 June 2011as well as
Page 17 and 18:
SSEM/2011/4730 June 2011The monitor
Page 19 and 20:
SSEM/2011/4730 June 2011(Field Inst
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
SSEM/2011/4730 June 2011number of f
Page 27 and 28:
SSEM/2011/4730 June 20114.5004.000F
Page 29 and 30:
SSEM/2011/4730 June 2011Table 3.5.
Page 31 and 32:
Page 33 and 34:
SSEM/2011/4730 June 20113.1.5 Risks
Page 35 and 36:
SSEM/2011/4730 June 2011presence of
Page 37 and 38:
SSEM/2011/4730 June 2011Beta-rich A
Page 39 and 40:
SSEM/2011/4730 June 2011Find Popula
Page 41 and 42: SSEM/2011/4730 June 2011Log Am241 A
Page 43 and 44: SSEM/2011/4730 June 2011Beach Find
Page 45 and 46: SSEM/2011/4730 June 2011Log Pu239 A
Page 47 and 48: SSEM/2011/4730 June 2011Figure 3.22
Page 49 and 50: SSEM/2011/4730 June 2011Table 3.9.
Page 51 and 52: 2.52.72.93.13.33.53.73.94.14.34.54.
Page 53 and 54: SSEM/2011/4730 June 2011In summary,
Page 55 and 56: SSEM/2011/4730 June 2011particles h
Page 57 and 58: SSEM/2011/4730 June 2011• Boron,
Page 59 and 60: SSEM/2011/4730 June 2011Table 3.15.
Page 61 and 62: SSEM/2011/4730 June 2011Recommendat
Page 63 and 64: SSEM/2011/4730 June 2011Recommendat
Page 65 and 66: SSEM/2011/4730 June 2011homogeneous
Page 67 and 68: SSEM/2011/4730 June 2011[the Sellaf
Page 69 and 70: SSEM/2011/4730 June 2011Figure 3.33
Page 71 and 72: SSEM/2011/4730 June 2011 © Nuclea
Page 73 and 74: SSEM/2011/4730 June 2011 © Nucle
Page 75 and 76: SSEM/2011/4730 June 2011The finding
Page 77 and 78: SSEM/2011/4730 June 2011Communicati
Page 79 and 80: SSEM/2011/4730 June 20115. Health R
Page 81 and 82: SSEM/2011/4730 June 2011The numbers
Page 83 and 84: SSEM/2011/4730 June 2011wear gloves
Page 85 and 86: SSEM/2011/4730 June 20116. Aims and
Page 87 and 88: SSEM/2011/4730 June 2011specificati
Page 89 and 90: SSEM/2011/4730 June 20116.5 Primary
Page 91: SSEM/2011/4730 June 20113. Where ar
Page 95 and 96: SSEM/2011/4730 June 2011Fundamental
Page 97 and 98: SSEM/2011/4730 June 2011size and wi
Page 99 and 100: SSEM/2011/4730 June 201130 May Drig
Page 101 and 102: SSEM/2011/4730 June 2011Figure 7.2.
Page 105 and 106: SSEM/2011/4730 June 20117.2 Applica
Page 107 and 108: SSEM/2011/4730 June 20117.2.3 Consi
Page 109 and 110: SSEM/2011/4730 June 20117.3.2 DSRL
Page 111 and 112: SSEM/2011/4730 June 2011contract mo
Page 115 and 116: SSEM/2011/4730 June 2011From 2008/0
Page 117 and 118: ID WBS Task Name Duration Start Fin
Page 123 and 124: SSEM/2011/4730 June 2011Hackney PD,
Page 125 and 126: SSEM/2011/4730 June 2011Appendix 12
Page 127 and 128: Harrington monitoring extent and as
Page 129 and 130: Whitehaven North/Harbour monitoring
Page 131 and 132: Nethertown monitoring extent for 20
Page 133 and 134: Drigg monitoring extent and associa
Page 135 and 136: This page is intentionally blank
Page 137 and 138: Contents1. Introduction ...........
Page 139 and 140: Figure 1 - Swath bathymetry of Scro
Page 141 and 142: Figures 4 to 6 show the same data w
Page 143 and 144:
3.2 Options for acquiring new bathy
Page 145 and 146:
3.3 Interpretation of gross geomorp
Page 147 and 148:
Head, shows a marked northerly sedi
Page 149 and 150:
of artefacts affecting the original
Page 151 and 152:
This page is intentionally blank
Page 154:
-
Page 157 and 158:
Executive Summary
Page 159 and 160:
Table of contents1 Introduction ...
Page 161 and 162:
-
Page 163 and 164:
sinks and transport pathways of rad
Page 165 and 166:
-
Page 167 and 168:
m thick ‘bins’ s
Page 169 and 170:
-
Page 171 and 172:
-
Page 173 and 174:
-
Page 175 and 176:
-
Page 177 and 178:
‘direction to’, and the convent
Page 179 and 180:
-
Page 181 and 182:
-
Page 183 and 184:
-
Page 185 and 186:
-
Page 187 and 188:
-
Page 189 and 190:
-
Page 191 and 192:
-
Page 193 and 194:
-
Page 195 and 196:
- - --
Page 197 and 198:
-
Page 199 and 200:
-
Page 201 and 202:
-
Page 203 and 204:
Bed shear stress exceedance - Sella
Page 205 and 206:
-
Page 207 and 208:
-
Page 209 and 210:
-
Page 211 and 212:
- -
Page 213 and 214:
Soulsby, R.L. and Whitehouse, R.J.S
Page 215 and 216:
-
Page 217 and 218:
-
Page 219 and 220:
-
Page 221 and 222:
-
Page 223 and 224:
About usCefas is a multi-disciplina
Page 225 and 226:
Page 227 and 228:
SummaryThe response of large volume
Page 229 and 230:
Contents1. INTRODUCTION ...........
Page 231 and 232:
Figure 3.15: 137 Cs activity concen
Page 233 and 234:
2. MODEL PARAMETERISATIONThe approa
Page 235 and 236:
Figure 2.2: Stripped 137 Cs count r
Page 237 and 238:
200150Number of finds1005000 5 10 1
Page 239 and 240:
1000 Bq kg -1SignificanceSignifican
Page 241 and 242:
SignificanceSignificanceSignificanc
Page 243 and 244:
0 Bq kg -1SignificanceSignificanceS
Page 245 and 246:
40 Bq kg -13Significance21012.5 Bq
Page 247 and 248:
Page 249 and 250:
3.1.2.2 Detailed Small Area SurveyF
Page 251 and 252:
Page 253 and 254:
3.2 Patches of Enhanced 137 Cs acti
Page 255 and 256:
3020Stripped cps100-100 200 400 600
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
4. DISCUSSIONThe work reported here
Page 263 and 264:
distribution. There appears to be n
Page 265 and 266:
clearance reduce detection limits,
Page 267 and 268:
Appendix A: Location and Activity D
Page 269 and 270:
Position (BNG)Activity of recovered
Page 271 and 272:
11/09/2007 301521 503408 6 Sand 195
Page 273 and 274:
14/11/2007 301442 503457 4 Sand 255
Page 275 and 276:
10/01/2008 301694 503522 12 Sand 27
Page 277 and 278:
24/06/2008 301662 503500 4 Sand 263
Page 279 and 280:
27/10/2008 302058 503065 5 Sand 128
Page 281 and 282:
16/01/2009 301522 503320 7 Sand 367
Page 283 and 284:
22/09/2009 301787 503592 7 Pebbles
Page 285 and 286:
17/03/2010 301446 503542 2 Sand 26
Page 287 and 288:
31/08/2010 300219 505597 0 Sand 33
Page 289 and 290:
Page 291 and 292:
24/05/2010 299805 505799 3 Sand 30
Page 293 and 294:
Page 295 and 296:
Activity of recoveredPosition (BNG)
Page 297 and 298:
Page 299 and 300:
Page 2 of 3provides useful informat
Page 301 and 302:
Week StartingSoftrak Beach Monitori
Page 303 and 304:
Additional justification of 2011/12
Page 305 and 306:
In the context of the total monitor
show all

Annual Report for 2010/11 and Forward Programme - Sellafield Ltd

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?