ML081620294
| ML081620294 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 05/12/2008 |
| From: | Ellen Brown Sacramento Municipal Utility District (SMUD) |
| To: | NRC/FSME |
| References | |
| F8990072 | |
| Download: ML081620294 (35) | |
Text
Rancho Seco Final Status Survey Summary Report March 24, 2008 Turbine Building Piping System +40 Survey Unit F8990072 Prepared By: J2-i /1 Date: '312'1 ac8 FSEngineer Reviewed By:
Date-Ledd FSS Engineer Approved By:
)
7-Date:________
Dismantlement ferintendent, Radiological
FINAL STATUS SURVEY
SUMMARY
REPORT Survey Unit:
F8990072, Turbine Building Piping System +40 Survey Unit
Description:
Operating History: This system collected clean water leakage and condensate from the turbine and routed it to the drain tank. This system was contaminated by radioactive system leakage into steam, feed and cooling water systems. Operating records and the HSA document occurrences of radioactive contamination associated with this system piping.
Site Characterization: Direct measurements were made of the interior surfaces of the system piping which confirmed the presence of plant-derived radionuclides. 'Direct measurements of the interior showed a mean gross activity level of 56,208 dpm/100 cm2 and a maximum value of 680,000 dpm/100 cm 2. Based on the classification procedure (DSIP-0020) and levels of gross activity reported, the system was determined to be a Class 1 system.
HSA Events: ODR-800111, 871122.
Survey Unit Design Information:
The Survey Unit Design Parameters are presented in Table 1 below. The survey unit and measurement locations are depicted on the maps in Attachment 1. Direct measurement locations were spaced at 15cm intervals and 22.8 m2 were scanned for 100% coverage.
The instrumentation used for the survey along with the MDC values are listed in Tables 2-1 and 2-2 in Attachment 2.
Page 2 of 21 FSS Summary Report F8990072
Table 1. Survey Unit Design Parameters Survey Design Value Comment Parameter Survey Area:
F899 Survey Unit:
Class:
SU Area (m2):
Evaluator:
DCGL (dpm/100 cm 2):
Area Factor:
Design DCGLemc (dpm/100 cm 2):
LBGR (dpm/100 cm2):
Design Sigma (dpm/100 cm 2):
Type I Error:
Type II Error:
Predominant Nuclide:
Sample Area (m2):
Scan Area (m2):
Scan Coverage (%):
ZI-:
Sign P:
Calculated Relative Shift:
Relative Shift Used:
N-Value:
Design N-Value + 20%:
Design Min Samples N:
Grid Spacing L:
00721 22.8 Erin L. Brown 100000 1
100000 50000 23464 0.05 0.05 Cs-137 N/A 22.8 100%
1.645 1.645 0.97725 2.2 2.2 12 15 15 1.2 Turbine Building Piping System +40 Structure Surface LTP Table 5-4 Gross Activity DCGL Class I Class 1 Default = 50% DCGL Class 1 Class 1 Uses 3.0 if Relative Shift is
>3 NUREG-1575 Table 5-5 Class 1 Class 1 Page 3 of 21 FSS Summary Report F8990072
Survey Results:
A total of 819 direct measurements were made in F8990072. The results including mean, median, standard deviation and range are shown in Table 2. All direct measurements were less than the DCGL. None of the measurements indicated areas of elevated activity.
Scan activity ranged from 919 to 3891 dpm/100 cm 2, based on the pipe detector efficiency.
Table 2. Direct Measurement Results Measurement ID Gross Activit (dpm/100 cm F8990072-MOO01GI 1566 F8990072-MOO02GI 1816 F8990072-MOO03GI 2175 F8990072-MOO07GI 1434 F8990072-MOO08GI 1309 F8990072-MOO09GI 1387 F8990072-MOO13GI 1484 F8990072-MOO14GI 1353 F8990072-MOO15GI 1322 F8990072-MOO19GI 1534 F8990072-MOO20GI 1302 F8990072-MOO21GI 1453 F8990072-M0025GI 1514 F8990072-M0026GI 1322 F8990072-M0027GI 1231 F8990072-M0031GI 1334 F8990072-M0032GI 1237 F8990072-M0033GI 1188 F8990072-M0037GI 1345 F8990072-M0038GI 1176 F8990072-M0039GI 1140 F8990072-M0043GI 1403 F8990072-M0044GI 1175 F8990072-M0045GI 1125 F8990072-M0049GI 1484 F8990072-MOO50GI 1268 F8990072-M0051GI 1207 F8990072-M0055GI 1457 F8990072-M0056GI 1245 F8990072-M0057GI 1258 F8990072-M0067GI 1506 F8990072-M0068GI 1305 F8990072-M0069GI 1183 F8990072-M0073GI 1445 F8990072-M0074GI 1386 F8990072-M0075GI 1136 F8990072-M0076GI 1178 F8990072-M0077GI 1328 F8990072-M0079GI 1449 F8990072-MOO80GI 1349 Page 4 of 21 FSS Summary Report F8990072
F8990072-M0081GI 1679 F8990072-M0085GI 1301 F8990072-M0086GI 1505 F8990072-M0087GI 1794 F8990072-M0091GI 1308 F8990072-M0092GI 1456 F8990072-M0093GI 1516 F8990072-M0097GI 1414 F8990072-M0098GI 1358 F8990072-M0099GI 1283 F8990072-MO103GI 1337 F8990072-MO104GI 1383 F8990072-MO105GI 1795 F8990072-MO109GI 1303 F8990072-M0110GI 1252 F8990072-MO111GI 1452 F8990072-MO115GI 1636 F8990072-MO121GI 1078 F8990072-MO122GI 1064 F8990072-MO123GI 1068 F8990072-MO127GI 1155 F8990072-M0128GI 1245 F8990072-M0129GI 1295 F8990072-M0133GI 1410 F8990072-M0134GI 1243 F8990072-M0135GI 1038 F8990072-MO139GI 1343 F8990072-MO140GI 1390 F8990072-MO141GI 1512 F8990072-M0145GI 1278 F8990072-M0146GI 1482 F8990072-M0147GI 1499 F8990072-MO151GI 1285 F8990072-M0152GI 1263 F8990072-MO153GI 1325 F8990072-M0157GI 1791 F8990072-M0158GI 1490 F8990072-M0159GI 1306 F8990072-MO160GI 1395 F8990072-M0163GI 1457 F8990072-MO164GI 1377 F8990072-M0165GI 1112 F8990072-M0169GI 1321
,F8990072-MO170GI 1421 F8990072-MO171GI 1397 F8990072-MO175GI 1215 F8990072-M0176GI 1152 F8990072-M0177GI 1178 F8990072-MO181GI 1496 F8990072-M0187GI 1186 F8990072-MO188GI 1199 F8990072-MO189GI 1362 F8990072-M0193GI 1404 F8990072-M0194GI 1473 F8990072-MO195GI 1360 F8990072-MO199GI 1389 Page 5 of 21 FSS Summary Report F8990072
F8990072-MO200GI 1497 F8990072-MO201GI 1609 F8990072-M0205GI 1162 F8990072-M0206GI 1190 F8990072-M0207GI 1352 F8990072-M0217GI 1431 F8990072-M0218GI 1615 F8990072-M0219GI 1708 F8990072-M0223GI 1458 F8990072-M0224GI 1656 F8990072-M0225GI 1878 F8990072-M0229GI 1731 F8990072-M0235GI 1444 F8990072-M0236GI 1291 F8990072-M0237GI 953 F8990072-M0238GI 967 F8990072-M0239GI 1090 F8990072-M0240GI 1307 F8990072-M0241GI 1289 F8990072-M0242GI 1373 F8990072-M0243GI 1468 F8990072-M0247GI 1570 F8990072-M0248GI 1515 F8990072-M0249GI 1643 F8990072-M0253GI 1389 F8990072-M0254GI 1397 F8990072-M0255GI 1470 F8990072-M0259GI 1302 F8990072-M0260GI 1366 F8990072-M0261GI 1504 F8990072-M0265GI 1326 F8990072-M0266GI 1358 F8990072-M0267GI 1248 F8990072-M0271GI 1492 F8990072-M0272GI 1409 F8990072-M0273GI 1196 F8990072-M0277GI 1395 F8990072-M0278GI 1505 F8990072-M0279GI 1588 F8990072-M0283GI 1334 F8990072-M0284GI 1263 F8990072-M0285GI 1381 F8990072-M0289GI 1621 F8990072-M0295GI 1343 F8990072-M0296GI 1372 F8990072-M0297GI 1619 F8990072-MO301GI 1442 F8990072-M0302GI 1427 F8990072-M0303GI 1292 F8990072-M0307GI 1318 F8990072-M0308GI 1374 F8990072-M0309GI 1643 F8990072-M0313GI 1259 F8990072-M0314GI 1265 F8990072-M0315GI 1515 F8990072-M0319GI 1279 Page 6 of 21 FSS Summary Report F8990072
F8990072-M0320GI 1304 F8990072-M0321GI 1317 F8990072-M0325GI 1559 F8990072-M0326GI 1582 F8990072-M0327GI 1991 F8990072-M0328GI 1914 F8990072-M0329GI 1948 F8990072-M0330GI 1998 F8990072-M0331GI 1959 F8990072-M0332GI 1972 F8990072-M0333GI 2016 F8990072-M0334GI 2081 F8990072-M0335GI 2078 F8990072-M0336GI 2006 F8990072-M0337GI 2018 F8990072-M0338GI 2047 F8990072-M0339GI 2087 F8990072-M0340GI 2040 F8990072-M0341GI 2038 F8990072-M0342GI 2074 F8990072-M0343GI 2138 F8990072-M0344GI 2030 F8990072-M0345GI 2075 F8990072-M0346GI 2088 F8990072-M0347GI 2071 F8990072-M0348GI 2077 F8990072-M0349GI 1986 F8990072-M0350GI 2026 F8990072-M0351GI 2069 F8990072-M0352GI 1992 F8990072-M0353GI 2056 F8990072-M0354GI 2064 F8990072-M0355GI 2081 F8990072-M0356GI 2097 F8990072-M0357GI 2085 F8990072-M0358GI 2045 F8990072-M0359GI 2060 F8990072-M0360GI 2010 F8990072-M0361GI 2034 F8990072-M0362GI 1995 F8990072-M0363GI 2115 F8990072-M0364GI 2033 F8990072-M0365GI 2084 F8990072-M0366GI 2055 F8990072-M0367GI 2046 F8990072-M0368GI 2057 F8990072-M0369GI 2003 F8990072-M0370GI 2109 F8990072-M0371GI 1979 F8990072-M0372GI 2005 F8990072-M0373GI 1997 F8990072-M0374GI 2105 F8990072-M0375GI 2093 F8990072-M0376GI 1952 F8990072-M0377GI 1555 F8990072-M0378GI 1834 Page 7 of 21 FSS Summary Report F8990072
F8990072-M0379GI 1941 F8990072-M0380GI 1909 F8990072-M0381GI 2001 F8990072-M0382GI 2082 F8990072-M0383GI 2081 F8990072-M0384GI 2099 F8990072-M0385GI 2107 F8990072-M0386GI 2088 F8990072-M0387GI 2109 F8990072-M0388GI 2074 F8990072-M0389GI 2111 F8990072-M0390GI 2122 F8990072-M0391GI 2052 F8990072-M0392GI 2041 F8990072-M0393GI 2050 F8990072-M0394GI 2086 F8990072-M0395GI 2115 F8990072-M0396GI 2113 F8990072-M0397GI 2067 F8990072-M0398GI 2081 F8990072-M0399GI 2019 F8990072-MO400GI 2001 F8990072-MO401GI 2011 F8990072-M0402GI 2059 F8990072-M0403GI 2024 F8990072-M0404GI 1963 F8990072-M0405GI 1841 F8990072-M0406GI 2002 F8990072-M0407GI 2126 F8990072-M0408GI 2101 F8990072-M0409GI 2125 F8990072-MO410GI 2085 F8990072-M0411GI 2094 F8990072-M0412GI 2035 F8990072-M0413GI 2105 F8990072-M0414GI 2089 F8990072-M0415GI 2109 F8990072-M0416GI 2089 F8990072-M0417GI 2123 F8990072-M0418GI 2095 F8990072-M0419GI 2062 F8990072-M0420GI 2095 F8990072-M0421GI 2138 F8990072-M0422GI 2071 F8990072-M0423GI 2033 F8990072-M0424GI 1500 F8990072-M0437GI 1332 F8990072-M0438GI 1626 F8990072-M0439GI 1871 F8990072-M0440GI 1907 F8990072-M0441GI 2076 F8990072-M0442GI 2119 F8990072-M0443GI 1978 F8990072-M0444GI 2085 F8990072-M0445GI 2112.
F8990072-M0446GI1 2157
.Page 8 of 21 FSS Summary Report F8990072
F8990072-M0447GI 2190
- F8990072-M0448GI 2139 F8990072-M0449GI 2172 F8990072-M0450GI 2189 F8990072-M0451GI 2167 F8990072-M0452GI 2077 F8990072-M0453GI 2219 F8990072-M0454GI 2179 F8990072-M0455GI 2206 F8990072-M0456GI 2181 F8990072-M0457GI 2133 F8990072-M0458GI 2012 F8990072-M0459GI 1688 F8990072-M0460GI 1350 F8990072-M0461GI 1339 F8990072-M0462GI 1334 F8990072-M0498GI 1241 F8990072-M0499GI 1205 F8990072-MO500GI 1291 F8990072-M0504GI 1131 F8990072-M0505GI 1136 F8990072-M0506GI 1232 F8990072-MO510GI 1405 F8990072-MO511GI 1738 F8990072-M0512GI 1981 F8990072-M0513GI 1975 F8990072-M0514GI 2066 F8990072-M0515GI 2066 F8990072-M0516GI 2152 F8990072-M0517GI 2069 F8990072-MO518GI 2061 F8990072-M0519GI 2059 F8990072-M0520GI 2066 F8990072-M0521GI 2050 F8990072-M0522GI 2071 F8990072-M0523GI 2147 F8990072-M0524GI 2084 F8990072-M0525GI 2078 F8990072-M0526GI 2087 F8990072-M0527GI 2093 F8990072-M0528GI 2091 F8990072-M0529GI 2112 F8990072-M0530GI 2071 F8990072-M0531GI 2047 F8990072-M0532GI 2110 F8990072-M0533GI 2057 F8990072-M0534GI 2072 F8990072-M0535GI 2040 F8990072-M0536GI 2059 F8990072-M0537GI 2118 F8990072-M0538GI 2073 F8990072-M0539GI 2066 F8990072-M0540GI 2081 F8990072-M0541GI 2068 F8990072-M0542GI 2085 F8990072-M0543GI 2059 Page 9 of 21 FSS Summary Report F8990072
F8990072-M0544GI 2070 F8990072-M0545GI 2095 F8990072-M0546GI 2078 F8990072-M0547GI 2092 F8990072-M0548GI 2084 F8990072-M0549GI 2014 F8990072-M0550GI 2037 F8990072-M0551GI 2112 F8990072-M0552GI 2035 F8990072-M0553GI 2107 F8990072-M0554GI 2078 F8990072-M0555GI 2037 F8990072-M0556GI 2075 F8990072-M0557GI 2110 F8990072-M0558GI 2064 F8990072-M0559GI 2120 F8990072-M0560GI 2024 F8990072-MO561GI 2073 F8990072-M0571GI 1484 F8990072-M0572GI 1802 F8990072-M0573GI 1876 F8990072-M0574GI 2005 F8990072-M0575GI 1975 F8990072-M0576GI 2181 F8990072-M0577GI 2093 F8990072-M0578GI 2152 F8990072-M0579GI 2110 F8990072-M0580GI 2152 F8990072-M0581GI 2133 F8990072-M0582GI 2100 F8990072-M0583GI 2028 F8990072-M0584GI 2073 F8990072-M0585GI 2009 F8990072-M0586GI 2101 F8990072-M0587GI 2017 F8990072-M0588GI 2121 F8990072-M0589GI 2081 F8990072-M0590GI 2098 F8990072-M0591GI 2111 F8990072-M0592GI 2084 F8990072-M0593GI 2120 F8990072-M0594GI 2069 F8990072-M0595GI 2131 F8990072-M0596GI 2134 F8990072-M0597GI 2007 F8990072-M0598GI 2051 F8990072-M0599GI 2001 F8990072-MO600GI 1879 F8990072-M0601GI 1942 F8990072-M0602GI 2103 F8990072-M0603GI 2056 F8990072-M0604GI 2076 F8990072-M0605GI 2098 F8990072-M0606GI 2114 F8990072-M0607GI 2055 F8990072-M0608GI 2141 Page 10 of 21 FSS Summary Report F8990072
F8990072-M0609GI 2110 F8990072-MO610GI 2146 F8990072-M0611GI 2204 F8990072-M0612GI 2150 F8990072-M0613GI 2117 F8990072-M0614GI 2116 F8990072-M0615GI 2102
- F8990072-M0616GI 2087 F8990072-M0617GI 1984 F8990072-M0618GI 2012 F8990072-M0632GI 1344 F8990072-M0633GI 1688 F8990072-M0634GI 1877 F8990072-M0635GI 1910 F8990072-M0636GI 1903 F8990072-M0637GI 2073 F8990072-M0638GI 1974 F8990072-M0639GI 2000 F8990072-M0640GI 2126 F8990072-M0641GI 2130 F8990072-M0642GI 2112 F8990072-M0643GI 2165 F8990072-M0644GI 2174 F8990072-M0645GI 2161 F8990072-M0646GI 2204 F8990072-M0647GI 2137 F8990072-M0648GI 2169 F8990072-M0649GI 2133 F8990072-M0650GI 2144 F8990072-M0651GI 2131 F8990072-M0652GI 2094 F8990072-M0653GI 1985 F8990072-M0654GI 1597 F8990072-M0655GI 1344 F8990072-M0656GI 1313 F8990072-M0657GI 1390 F8990072-M0693GI 1248 F8990072-M0694GI 1302 F8990072-M0695GI 1260 F8990072-M0699GI 1347 F8990072-MO700GI 1372 F8990072-M0701GI 1342 F8990072-M0705GI 1645 F8990072-M0706GI 1698 F8990072-M0711GI 1467 F8990072-M0712GI 1509 F8990072-M0713GI 1571 F8990072-M0717GI 1283 F8990072-M0718GI 1272 F8990072-M0719GI 1315 F8990072-M0723GI 1302 F8990072-M0724GI 1368 F8990072-M0725GI 1047 F8990072-M0729GI 1546 F8990072-M0730GI 1435 F8990072-M0731GI 1247 Page I1I of 21 FSS Summary Report F8990072
F8990072-M0735GI 1300 F8990072-M0736GI 1283 F8990072-M0737GI 1102 F8990072-M0741GI 1397 F8990072-M0742GI 1295 F8990072-M0743GI 1062 F8990072-M0744GI 1074 F8990072-M0747GI
.1294 F8990072-M0748GI 1182 F8990072-M0749GI 1021 F8990072-M0750GI 1134 F8990072-M0753GI 1822 F8990072-M0754GI 1485 F8990072-M0755GI 1387 F8990072-M0759GI 1238 F8990072-M0760GI 1121 F8990072-M0761GI 1271 F8990072-M0765GI 1428 F8990072-M0766GI 1414 F8990072-M0767GI 1083 F8990072-M0771GI 1257 F8990072-M0772GI 1265 F8990072-M0773GI 1383 F8990072-M0777GI 1304 F8990072-M0778GI 1284 F8990072-M0779GI 1384 F8990072-M0783GI 1307 F8990072-M0784GI 1295 F8990072-M0785GI 1185 F8990072-M0786GI 1312 F8990072-M0789GI 1627 F8990072-M0790GI 2059 F8990072-M0791GI 2693 F8990072-M0795GI 1796 F8990072-M0796GI 2520 F8990072-M0797GI 3455 F8990072-M0801GI 1784 F8990072-M0802GI 2543 F8990072-M0803GI 3518 F8990072-M0807GI 2081 F8990072-M0808GI 3231 F8990072-M0809GI 3871 F8990072-M0813GI 2008 F8990072-M0814GI 3004 F8990072-M0815GI 3891 F8990072-M0819GI 1390 F8990072-M0820GI 1497 F8990072-M0821GI 1525 F8990072-M0825GI
.1610 F8990072-M0826GI 1708 F8990072-M0827GI 1598 F8990072-M0831GI 1506 F8990072-M0832GI 1818 F8990072-M0833GI 2302 F8990072-M0837GI 1766 F8990072-M0838GI 2014
'Page 12 of 21 FSS Summary Report F8990072
F8990072-M0839GI 2371 F8990072-M0843GI 1362 F8990072-M0844GI 1668 F8990072-M0845GI 1542 F8990072-M0849GI 1632 F8990072-M0850GI 1869 F8990072-M0851GI 2192 F8990072-M0855GI 2218 F8990072-M0856GI 2141 F8990072-M0857GI 2176 F8990072-M0861GI 1715 F8990072-M0862GI 1754 F8990072-M0863GI 1661 F8990072-M0867GI 1678 F8990072-M0868GI 1861 F8990072-M0869GI 1888 F8990072-M0873GI 1533 F8990072-M0874GI 1466 F8990072-M0875GI 1757 F8990072-M0879GI 1535 F8990072-M0880GI 1499 F8990072-M0881GI 1643 F8990072-M0885GI 1583 F8990072-M0886GI 1501 F8990072-M0887GI 1362 F8990072-M0891GI 1399 F8990072-M0892GI 1359 F8990072-M0893GI 1486 F8990072-M0897GI 1234 F8990072-M0898GI 1210 F8990072-M0899GI 1255 F8990072-M0903GI 1443 F8990072-M0904GI 1309 F8990072-M0905GI 1387 F8990072-M0909GI 1407 F8990072-MO910GI 1246 F8990072-MO911GI 1146 F8990072-M0915GI 1321 F8990072-M0916GI 1340 F8990072-M0917GI 1243 F8990072-M0927GI 1335 F8990072-M0928GI 1199 F8990072-M0929GI 1208 F8990072-M0933GI 1428 F8990072-M0934GI 1359 F8990072-M0935GI 1004 F8990072-M0936GI 989 F8990072-M0937GI 1091 F8990072-M0939GI 1393 F8990072-M0940GI 1371 F8990072-M0941GI 1400 F8990072-M0945GI 1314 F8990072-M0946GI 1253 F8990072-M0947GI 1400 F8990072-M0951GI 1619 F8990072-M0952GI 1402
.Page 13 of 21 FSS Summary Report F8990072
F8990072-M0953GI 1119 F8990072-M0957GI 1293 F8990072-M0958GI 1228 F8990072-M0959GI 1485 F8990072-M0963GI 1402 F8990072-M0964GI 1359 F8990072-M0965GI 1346 F8990072-M0969GI 1577 F8990072-M0970GI 1501 F8990072-M0971 GI.
1124 F8990072-M0975GI 1260 F8990072-M0976GI 1257 F8990072-M0977GI 1313 F8990072-M0981GI 1341 F8990072-M0982GI 1283 F8990072-M0983GI 1443 F8990072-M0987GI 1260 F8990072-M0988G1 1288 F8990072-M0989GI 1300 F8990072-M0993GI 1271 F8990072-M0994GI 1372 F8990072-M0995GI 1321 F8990072-M0996GI 1860 F8990072-M0997GI 1708 F8990072-M0998GI 1661 F8990072-M0999GI 1677 F8990072-MlOOOGI 1434 F8990072-M1001GI 1467 F8990072-M1002GI 1567 F8990072-MI003GI 1722 F8990072-MI004GI 1833 F8990072-M1005GI 1932 F8990072-M1006GI 1947 F8990072-MO007GI 2026 F8990072-MI008GI 1923 F8990072-M1009GI 2070 F8990072-MI010GI 1993 F8990072-M1011GI 1695 F8990072-MI012GI 2001 F8990072-MI013GI 1921 F8990072-MI014GI 2018 F8990072-M1015GI 1657 F8990072-M1016GI 1709 F8990072-M1017GI 1832 F8990072-MI018GI 1921 F8990072-MI019GI 1951 F8990072-MI020GI 1974 F8990072-M1021GI 1977 F8990072-MI022GI 1933 F8990072-M1023GI 1829 F8990072-M1024GI 1924 F8990072-M1025GI 1909 F8990072-M1026GI 1963 F8990072-M1027GI 1840 F8990072-MI028GI 1774 F8990072-MI029GI 1850 Page 14 of 21 FSS Summary Report F8990072
F8990072-M1030GI 1840 F8990072-M1031GI 1900 F8990072-M1032GI 1888 F8990072-M1033GI 1887 F8990072-M1034GI 1921 F8990072-M1035GI 1905 F8990072-M1036GI 1925 F8990072-MI037GI 1962 F8990072-MI038GI 1928 F8990072-M1039GI 1909 F8990072-M1040GI 1882 F8990072-M1041 GI 1896 F8990072-M1042GI 1902 F8990072-M1043GI 1711 F8990072-M1044GI 1939 F8990072-M1045GI 1820 F8990072-M1046GI 1702 F8990072-M1047GI 1837 F8990072-M1048GI 1848 F8990072-M1049GI 1706 F8990072-MI050GI 1746 F8990072-M1051GI 1828 F8990072-M1052GI 1744 F8990072-M1053GI 1743 F8990072-MI054GI 1905 F8990072-MI055GI 1868 F8990072-M1056GI 1874 F8990072-M1057GI 1817 F8990072-M1058GI 1665 F8990072-M1059GI 1759 F8990072-M1060GI 1734 F8990072-M1061GI 1813 F8990072-M1062GI 1871 F8990072-M1063GI 1881 F8990072-M1064GI 1923 F8990072-M1065GI 1959 F8990072-M1066GI 1879 F8990072-MI067GI 1895 F8990072-M1068GI 1874 F8990072-M1069GI 1898 F8990072-M1070GI 1882 F8990072-M1071GI 1639 F8990072-M1072GI 1893 F8990072-M1073GI 1684 F8990072-M1074GI 1895 F8990072-M1075GI
.1848 F8990072-M1076GI 1486 F8990072-M1077GI 1643 F8990072-M1078GI 1605 F8990072-M1079GI 1786 F8990072-M1080GI 1690 F8990072-M1081GI 1738 F8990072-M1082GI 1729 F8990072-M1083GI 1765 F8990072-M1084GI 1761 F8990072-M1085GI 1759 Page 15 of 21 FSS Summary Report F8990072
F8990072-MI086GI 1733 F8990072-M1087GI 1781 F8990072-M1088GI 1793 F8990072-M1089GI 1728 F8990072-M1090GI 1819 F8990072-MI091GI 1774 F8990072-MI092GI 1790 F8990072-Mi093GI 1826 F8990072-MI094GI 1804 F8990072-M1095GI.
1779 F8990072-M1096GI 1781 F8990072-M1097GI 1669 F8990072-M1098GI 1752 F8990072-M1099GI 1697 F8990072-M11OOGI 1702 F8990072-MllOlGI 1688 F8990072-M1102GI 1647 F8990072-M1103GI 1645 F8990072-M1104GI 1580 F8990072-M1105Gi 1550 F8990072-M1106GI 1460 F8990072-M1107GI 1516 F8990072-M1108GI 1433 F8990072-MI109GI 1462 F8990072-M111OGI 1452 F8990072-M1111GI 1842 F8990072-M1112GI 2056 F8990072-M1113GI 1624 F8990072-MI114GI 1483 F8990072-Mlll5GI 1280 F8990072-MI116GI 1250 F8990072-MI117GI 1372 F8990072-M1118GI 1349 F8990072-M1119GI 1242 F8990072-MI120GI 1359 F8990072-MI121GI 1267 F8990072-MI122GI 1302 F8990072-M1123GI 1326 F8990072-M1124GI 1395 F8990072-M1125GI 1428 F8990072-MI126GI 1407 F8990072-MI127GI 1381 F8990072-M1128GI 1511 F8990072-M1129GI 1474 F8990072-M1130GI 1469 F8990072-M1131GI 1445 F8990072-M1132GI 1487 F8990072-MI133GI 1519 F8990072-M1134GI 1453 F8990072-MI135GI 1427 F8990072-MI136GI 1471 F8990072-M1137GI 1469 F8990072-M1138GI 1479 F8990072-M1139GI 1528 F8990072-MI140GI 1580 F8990072-M1141GI 1599 Page 16 of 21 FSS Summary Report F8990072
F8990072-M1142GI 1529 F8990072-MI143GI 1447 F8990072-M1144GI 1366 F8990072-M1145GI 1390 F8990072-M1146GI 1411 F8990072-M1147GI 1404 F8990072-M1148GI 1357 F8990072-M1149GI 1317 F8990072-MI150GI 1290 F8990072-MII5IGI 1299 F8990072-M1152GI 1351 F8990072-M1153GI 1312 F8990072-M1154GI 1313 F8990072-Ml155GI 1341 F8990072-M1156GI 1366 F8990072-MI157GI 1445 F8990072-M1158GI 1584 F8990072-M1159GI 1572 F8990072-M1160GI 1621 F8990072-M1161GI 1638 F8990072-M1162GI 1600 F8990072-M1163GI 1634 F8990072-MI164GI 1593 F8990072-MI165GI 1667 F8990072-M1166GI 1695 F8990072-M1167GI 1698 F8990072-M1168GI 1705 F8990072-M1169GI 1742 F8990072-M1170GI 1710 F8990072-M1171GI 1725 F8990072-M1172GI 1705 F8990072-M1173GI 1616 F8990072-MI174GI 1569 F8990072-MI175GI 1628 F8990072-M1176GI 1633 F8990072-M1177GI 1500 F8990072-M1178GI 1478 F8990072-M1179GI 1498 F8990072-MI180GI 1499 F8990072-M1181GI 1318 F8990072-M1182GI 1267 F8990072-M1183GI 1227 F8990072-M 1I84GI 1530 F8990072-MI185GI 1445 F8990072-M1186GI 1460 F8990072-M1187GI 1436 F8990072-M1188GI 1461 F8990072-M1189GI 1348 F8990072-MI190GI 1376 F8990072-MI191GI 1371 F8990072-MI192GI 1363 F8990072-M1193GI 1350 F8990072-M1194GI 1352 F8990072-M1195GI 1354 F8990072-M1196GI 1323 F8990072-MI197GI 1253 Page 17 of 21 FSS Summary Report F8990072
F8990072-M 1198GI F8990072-MI199GI F8990072-Ml 200GI F8990072-M1201GI F8990072-M1202GI F8990072-M1203GI F8990072-M1204GI F8990072-M1205GI F8990072-M1206GI F8990072-M1207GI F8990072-MI208GI F8990072-M1209GI F8990072-M1210GI F8990072-MI211GI F8990072-M1212GI F8990072-MI213GI F8990072-M1 214GI' F8990072-MI215GI F8990072-M1216GI F8990072-M1217GI F8990072-M1218GI F8990072-M1219GI F8990072-MI220GI F8990072-M1221GI F8990072-MI222GI F8990072-M1223GI F8990072-M1224GI F8990072-M1225GI F8990072-MI226GI F8990072-MI227GI F8990072-MI228GI F8990072-M1229GI F8990072-M1230GI F8990072-M1231GI F8990072-M1232GI F8990072-M1233GI F8990072-M1234GI F8990072-MI235GI F8990072-MI236GI F8990072-MI237G!
F8990072-M1238GI F8990072-MI239GI F8990072-M1240GI F8990072-MI241GI F8990072-M1242GI F8990072-M1243GI F8990072-M1244GI F8990072-M1245GI F8990072-M1246GI F8990072-MI247GI F8990072-M1248GI Mean:
Median:
Standard Deviation:
Range:
1183 1288 1332 1383 1372 1298 1299 1320 1313 1320 1298 1343 1336 1301 1307 1337 1299 1377 1295 1306 1272 1259 1244 1278 1349 1338 1303 1329 1346 1363 1312 1239 1364 1000 919 991 972 929 995 974 972 980 922 966 929 1001 968 969 1183 1099 1288 1663 1619
.385 919-3891 Page 18 of 21 FSS Summary Report F8990072
Survey Unit Data Assessment:
The survey design required 819 direct measurements for the Sign Test. The critical value and the results of the Sign Test are presented in Table 4. The sample mean and median values were less than the DCGL. The sample standard deviation was less than the design standard deviation so no additional samples were required.
Page 19 of 21 FSS Summary Report F8990072
Table 4. Data Assessment Results Survey Results Parameter Value Comment Material Background Used (dpm/100 cm 2):
N/A Ambient Background Used (dpm/100 cm 2):
N/A Average Ambient BKG 0
Actual Direct Measurements (N):
819 Median (dpm/100 cm 2):
1619 Mean (dpm/100 cm2):
1663 Direct Measurement Standard Deviation 385 (dpm/100 cm 2):
Total Standard Deviation (dpm/100 cm 2):
385 Based on samples and backgrounds.
Maximum (dpm/100 cm2):
3891 Material Type:
N/A Background Subtract Not Applied Sign Test Final N Value:
819 S+ Value:
819 Critical Value:
433 Sufficient Samples Collected:
Yes Maximum Value < DCGL:
Yes Median Value < DCGL:
Yes Mean Value < DCGL:
Yes Maximum Value < DCGLemc:
Yes Class 1 Total Standard Deviation <= Sigma:
Yes Pass the Sign Test?
Yes Reject the Null Hypothesis?
Yes Does the Survey Unit Pass All Criteria?
Yes Page 20.of 21 FSS Summary Report F8990072
Survey Unit Investigations and Results:
No investigations, were required and no investigation results are reported.
ALARA Statement:
As stated in Chapter 4 of the LTP, as long as the residual activity within the survey unit is less than the DCGL (i.e. the survey unit average activity is less than the DCGL), the ALARA criterion has been met.
Changes in Initial Survey Unit Assumptions:
The survey unit was designed as a Class 1 structure survey and the sample results are consistent with that classification. The variability of the survey results was less than the characterization data used for survey design. No potential areas of elevated activity were detected.
==
Conclusion:==
The FSS of this survey unit was properly designed as a Class 1 survey based on Table 5-4 of the LTP. The required number of direct' measurements was made and the scan coverage met the requirement of Table 5-6 of the LTP. No direct measurements exceeded the DCGL of 100000 dpm/100 cm2 or the grout limit of 21OOOdpm/100cm2. No investigations were required.
The direct measurement data support rejection of the null hypothesis, providing high confidence that the survey unit satisfied the release criteria and that the data quality objectives were' met.
It is concluded that survey unit F8990072 meets the release criteria of 10CFR20.1402.
Page 21 of 21 FSS Summary Report F8990072
Attachment I Maps March 24, 2008 Survey Unit F8990072
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(D 00I Instrumentation March 24, 2008 Survey Unit F8990072
Table 2-1. Survey Unit Instrumentation Instrument Detector MDC Static MDC Scan Model; Serial No.
Model; Serial No.
(dpm/100 cm 2 )
(dpm/100 cm 2 )
M2350; 142512 44-157; 215958 1750 N/A M2350;142509 44-157;201151 1750 N/A Table 2-2. Investigation Criteria and DCGL Value.
Parameter Valuc (dpmn/100 cm2)
Investigation Criteria - Direct 100000 Investigation Criteria - Scan N/A DCGLw 100000 DCGLEMC N/A Page 2 of 2 Att. 2 Instrumentation F8990072 Investigation March 24, 2008 Survey Unit F8990072 (none required)
Data Assessment March 24, 2008 Survey Unit F8990072
F8990072 Gross Activity Sample Results Quantile Plot 0
DCGL = 100000 dpm/100cm2 4ý1 4,500 3,5000-~tA
~,2,000 sr;:.'tis.V f
T 1619 S1,500
~~
0 0
0 20 40 60 80 100 7Percentile Direct Measurements (dpm/1 Ocm2) median 75th Percentile 50th Percentile
-o 09 pa}
pa tb 00 0
I-1 F8990072 Gross Activity Sample Results Scatter Plot DCGL = 100000 dpm1iOOcm2 4500 4000 2 3500 gC 3000
'E 26'00
- .0,2000 1500 t -1000 600 0
2819 1663 508
-; U 7
O t
O O
CL4 4
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0 0
0 0
0 0Me et 0
0 0
0 V0 Va N
0 r
M 0
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Measurement Locations o
o Gross Activity Average -
"+3StDev"...
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CD 0
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Qt Cn F8990072 Gross Activity Frequency Plot DCGL = 100000 dpm/1 00cm2 200 0)
C 0
C' 150 100 50 0
- 0) cro 0
(%~J N-C~)
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Bins - Upper End Value (dpm/1 00cm2)