ML081580598

Final Status Survey Summary Report, March 18, 2008, Acid Waste Piping System Survey Unit F8990521

ML081580598
Person / Time
Site:	Rancho Seco
Issue date:	05/12/2008
From:	Ellen Brown Sacramento Municipal Utility District (SMUD)
To:	NRC/FSME
References
F8990521
Download: ML081580598 (38)

Text

Rancho Seco Final Status Survey Summary Report March 18, 2008 Acid Waste Piping system Survey Unit F8990521 Prepared By: &U? /7 2;2coDr2 Date: ý3JI/OIO Reviewed Date:

Lead FSS Engineer Approved By: Date:

Dismantlement Superintendent, Radiological

FINAL STATUS SURVEY

SUMMARY

REPORT Survey Unit:

F8990521, Acid Waste Piping system Survey Unit

Description:

Operating History: This system transported radioactive waste water. This system was designed to be contaminated. Operating records and the HSA support its status as radioactively contaminated 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 2,450,000 dpm/100 cm 2 and a maximum value of 74,600,000 dpm/l 00 cm2. 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: N/A Radioactive by design.

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 29.6 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 23 FSS Summary Report F8990521

Table 1. Survey Unit Design Parameters Survey Design Value Comment Parameter Survey Area: F899 Acid Waste Piping system Survey Unit: 0521 Structure Surface Class: 1 LTP Table 5-4 SU Area 2 (M ): 29.6 Evaluator: Erin L. Brown DCGL (dpm/100 cm 2): 100000 Gross Activity DCGL Area Factor: 1 Class 1 Design DCGLemc 100000 Class 1

. . (dpm/100 cm 2):

LBGR (dpm/100 cm 2): 50000 Default = 50% DCGL Design Sigma (dpm/100 2 cm ): 13000 Type I Error: 0.05 Type II Error: 0.05 Predominant Nuclide: Cs-137 Sample Area (M2): N/A Class 1 Scan Area (M2 ): 29.6 Scan Coverage (%): 100% Class 1 1.645

• Z 14 : 1.645 Sign P: 0.99865 Calculated Relative Shift: 3.9 Relative Shift Used: 3 Uses 3.0 if Relative Shift is

>3 N-Value: 11 Design N-Value + 20%: 14 NUREG-1575 Table 5-5 Design Min Samples N: 14 Class 1 Grid Spacing L: 1.4 Class 1 Page 3 of 23 FSS Summary Report F8990521

Survey Results:

A total of 918 direct measurements were made in F8990521. 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 scan measurements indicated areas of elevated activity. Scan activity ranged from 1267 to 75621 dpm/100 cm 2, based on the pipe detector efficiency.

Table 2. Direct Measurement Results Measurement ID Gross Activity (dpm/100 cm F8990521-MO00I0GI 1961 F8990521 -MOO02GI 2336 F8990521 -MOO03GI 7009 F8990521 -MOO04GI 7134 F8990521 -MOO05GI 3661 F8990521 -MOO06GI 2148 F8990521-MOO07GI 1869 F8990521 -MOO08GI 1965 F8990521-MOO09GI 1994 F8990521-MOOOGI 2201 F8990521-MOOIIGI 2009 F8990521-MOO12GI 2486 F8990521-MOO13GI 17042 F8990521-MOO14GI 3025 F8990521-MOO15GI 2620 F8990521-MO016GI 3892 F8990521 -MO01 7GI 2640 F8990521-M0018GI 3603 F8990521-MOO19GI 2760 F8990521-M0020GI 2250 F8990521-M0021GI 2211 F8990521-M0022GI 2028 F8990521-M0023GI 2105 F8990521-M0024GI 2221 F8990521-M0025GI 2211 F8990521 -M0026GI 3724 F8990521-M0027GI 2254 F8990521 -M0028GI 2038 F8990521-M0029GI 1835 F8990521-MOO30GI 2018 F8990521-M0031GI 1980 F8990521-M0032GI 1975 F8990521-M0033GI 2013 F8990521 -M0034GI 1893 F8990521-M0035GI 2095 F8990521-M0036GI 5833 F8990521-M0037GI 2047 F8990521-M0038GI 17269 F8990521-M0039GI 4080 F8990521-MOO40GI 1922 Page 4 of 23 FSS Summary Report F8990521

F8990521-MOO41GI 1802 F8990521-M0042GI 1835 F8990521-M0043GI 1667 F8990521-M0044GI 1864 F8990521-M0045GI 2009 F8990521-M0046GI 1883 F8990521-M0047GI 1883 F8990521-M0048GI 2047 F8990521 -M0049GI .1975 F8990521-MOO50GI 2153 F8990521-MOO51GI 2062 F8990521-M0052GI 1961 F8990521 -M0053GI 1768 F8990521-M0054GI 1936 F8990521-M0055GI 3444 F8990521-M0056GI 1932 F8990521-M0057GI 1956 F8990521 -M0058GI 2033 F8990521-M0059GI 1961 F8990521 -M0060GI 1797 F8990521-MOO61GI 1802 F8990521-M0062GI 1628 F89905211-M0063GI 1936 F8990521-M0064GI 1961 F8990521-M0065GI 4335 F8990521-M0066GI 1821 F8990521-M0067GI 1941 F8990521-M0068GI 1917 F8990521-M0069GI 1797 F8990521-MOO70GI 1927 F8990521-M0071GI 1908 F8990521-M0072GI 2057 F8990521-M0073GI 1912 F8990521-M0074GI 2066 F8990521-M0075GI 8974 F8990521-M0076GI 1941 F8990521-M0077GI 2331 F8990521-MOO78GI 5250 F8990521-M0079GI 2038 F8990521-MOO80GI 2938 F8990521-M0081GI 5140 F8990521 -M0082GI 1888 F8990521 -M0083GI 1777 F8990521-M0084GI 1893 F8990521-M0085GI 1667 F8990521-MOO86GI 2115 F8990521-M0087GI 2018 F8990521-M0088GI 1493 F8990521-M0089GI 1633 F8990521 -MOO90GI 2042 F8990521-M0091GI 1965 F8990521-M0092GI 1912 F8990521-M0093GI 2129 F8990521-M0094GI 1758 F8990521-M0095GI 2047 F8990521-M0096GI 2066 Page 5 of 23 FSS Summary Report F8990521

F8990521 -M0097GI 1806 F8990521-M0098GI 1869 F8990521 -M0099GI 1864 F8990521-MO100GI 2081 F8990521-MO010GI 2197 F8990521-MO102GI 1888 F8990521-MO103GI 1912 F8990521-M0104GI 2119 F8990521-M0105GI 2187 F8690521-M0106GI 1975 F8990521-MO107GI 1744 F8990521-MO108GI 1633 F8990521-MO109GI 1932 F8990521-MO110GI 1368 F8990521-MO111GI 1922 F8990521-MO112GI 1787 F8990521-M0113GI 1614 F8990521-MOI14GI 1768 F8990521-MO115GI 1985 F8990521-MO116GI 1850 F8990521-MO117GI 1961 F8990521-MO118GI 1585 F8990521-M0119GI 1975 F8990521-M0120GI 1855 F8990521-MO121GI 1830 F8990521-M0122GI 1806 F8990521-M0123GI 1821 F8990521-M0124GI 1830 F8990521-MO125GI 1739 F8990521-M0126GI 1912 F8990521-M0127GI 1792 F8990521-M0128GI 1440 F8990521-MO129GI 1874 F8990521-MO13OGI 1888 F8990521-MO131GI 1989 F8990521-MO132GI 2052 F8990521-M0133GI 1898 F8990521-M0134GI 1787 F8990521-MO135GI *1681 F8990521-M0136GI 1267 F8990521 -MO0 37GI 1806 F8990521-MO138GI 1729 F8990521-M0139GI 1917 F8990521-MO140GI 1932 F8990521-MO141GI 1941 F8990521-M0142GI 1830 F8990521-M0143GI 1922 F8990521-MO144GI 1936 F8990521-M0145GI 1816 F8990521-M0146GI 1561 F8990521-M0147GI 1850 F8990521-MO148GI 1787 F8990521-M0149GI 1753 F8990521-MO150GI 1570 F8990521-M0151GI 1402 F8990521-M0152GI 1623 Page 6 of 23 FSS Summary Report F8990521

F8990521-MO153GI 1397 F8990521 -MO0 54GI 2042 F8990521-MO155GI 2033 F8990521-M0156GI 1912 F8990521-M0157GI 1898 F8990521-M0158GI 1811 F8990521-M0159GI 1676 F8990521-MO160GI 1980 F8990521-MO161GI 1965 F8990521-MO162GI 1758 F8990521-M0163GI 1855 F8990521-M0164GI 1917 F8990521-M0165GI 1763 F8990521-MO166GI 1830 F8990521-M0167GI 1961 F8990521-M0168GI 1792 F8990521-M0169GI 1729 F8990521-MO170GI 1700 F8990521-MO171GI 1999 F8990521-M0172GI 1879 F8990521-M0173GI 1816 F8990521-MO174GI 1893 F8990521-M0175GI 1821 F8990521-M0176GI 1826 F8990521-MO177GI 1768 F8990521-M0178GI 1551 F8990521-M0179GI 1792 F8990521-MO180GI 1922 F8990521-MO181GI 1908 F8990521-M0182GI 1989 F8990521-M0183GI 1965 F8990521-MO184GI 1787 F8990521-M0185GI 1908 F8990521-M0186GI 1859 F8990521-MO187GI 1797 F8990521-M0188GI 2013 F8990521-M0189GI 1681 F8990521-MO190GI 1917 F8990521-MO191GI 1946 F8990521-M0192GI 1903 F8990521-M0193GI 1835 F8990521-M0194GI 1638 F8990521-M0195GI 1879 F8990521-MO196GI 2023 F8990521-M0197GI 1850 F8990521-M0198GI 1517 F8990521-M0199GI 1806 F8990521-MO200GI 2124 F8990521-MO201GI 1941 F8990521-M0202GI 2042 F8990521-M0203GI 1845 F8990521-M0204GI 2013 F8990521 -M0205GI 1936 F8990521-M0206GI 1811 F8990521-M0207GI 1777 F8990521-M0208GI 1513 Page 7 of 23 FSS Summary Report F8990521

F8990521-M0209GI 1826 F8990521-MO210GI 1888 F8990521-MO211GI 1835 F8990521-M0212GI 1888 F8990521-M0213GI 1999 F8990521-M0214GI 1941 F8990521-M0215GI 1912 F8990521-M0216GI 1768 F8990521-M0217GI 1917 F8990521-M0218GI 1850 F8990521-M0219GI 1821 F8990521 -M0220GI 1864 F8990521-M0221GI 1768 F8990521-M0222GI 1879 F8990521-M0223GI 1845 F8990521-M0224GI 1792 F8990521-M0225GI 1956 F8990521-M0226GI 1980 F8990521-M0227GI 2071 F8990521-M0228GI 1941 F8990521-M0229GI 1883 F8990521-M0230GI 1729 F8990521-M0231GI 1855 F8990521-M0232GI 1927 F8990521-M0233GI 1845 F8990521-M0234GI 1816 F8990521-M0235GI 1782 F8990521-M0236GI 1855 F8990521-M0237GI 1975 F8990521 -M0238GI 1758 F8990521-M0239GI 2004 F8990521-M0240GI 2905 F8990521-M0241GI 1903 F8990521-M0242GI 1903 F8990521-M0243GI 1821 F8990521-M0244GI 1604 F8990521-M0245GI 1941 F8990521-M0246GI 2066 F8990521 -M0247GI 2023 F8990521-M0248GI 1932 F8990521-M0249GI 2168, F8990521-M0250GI r 2278 F8990521-M0251GI 2457 F8990521-M0252GI 2274 F8990521-M0253GI 2471 F8990521-M0254GI 2548

,F8990521-M0255GI 2428 F8990521-M0256GI 2514 F8990521-M0257GI 2514 F8990521 -M0258GI 2423 F8990521-M0259GI 2486 F8990521-M0260GI 2592 F8990521-M0261GI 2664 F8990521-M0262GI 2307 F8990521-M0263GI 2221 F8990521 -M0264GI 2442 Page 8 of 23 FSS Summary Report F8990521

F8990521-M0265GI 2452 F8990521-M0266GI 2327 F8990521-M0267GI 2476 F8990521-M0268GI 2722 F8990521-M0269GI. 2712 F8990521-M0270GI 2558 F8990521-M0271GI 2620 F8990521-M0272GI 2062 F8990521-M0273GI 2177 F8990521-M0274GI 2375 F8990521-M0275GI 2539 F8990521-M0276GI 2408 F8990521-M0277GI 2495 F8990521-M0278GI 2418 F8990521-M0279GI 2452 F8990521-M0280GI 2423 F8990521-M0281GI 2654 F8990521-M0282GI 2375 F8990521-M0283GI 2331 F8990521 -M0284GI 2553 F8990521-M0285GI 2452 F8990521-M0286GI 2688 F8990521-M0287GI 2606 F8990521-M0288GI 2919 F8990521-M0289GI 2611 F8990521-M0290GI 2529 F8990521-M0291G1 2433 F8990521 -M0292GI 2654 F8990521-M0293GI 2543 F8990521-M0294GI 2447 F8990521 -M0295GI 2408 F8990521-M0296GI 2572 F8990521-M0297GI 2500 F8990521-M0298GI 3112 F8990521-M0299GI 60808 F8990521-M0300GI 11541 F8990521-M0301GI 4515 F8990521-M0302GI 1922 F8990521-M0303GI 1775 F8990521-M0304GI 1801 F8990521 -M0305GI 1689 F8990521-M0306GI 1768 F8990521-M0307GI 1673 F8990521-M0308GI 2244 F8990521-M0309G1 3378 F8990521-M0310GI 21390 F8990521-M0311GI 2882 F8990521-M0312GI 2711 F8990521-M0313GI 10292 F8990521-M0314GI 33976 F8990521-M0315GI 13562 F8990521-M0316GI 4371 F8990521-M0317GI 3845 F8990521-M0318GI 1972 F8990521-M0319GI 1683 F8990521-M0320GI 1584 Page 9 of 23 FSS Summary Report F8990521

F8990521-M0321GI 1719 F8990521-M0322GI 1775 F8990521-M0323GI 2422 F8990521-M0324GI 1952 F8990521-M0325GI 2060 F8990521-M0326GI 1643 F8990521-M0327GI 1479 F8990521-M0328GI 1561 F8990521-M0329GI 2902 F8990521-M0330GI 20046 F8990521-M0331GI 7542 F8990521-M0332GI 3105 F8990521-M0333GI 2028 F8990521-M0334GI 1952 F8990521-M0335GI 1568 F8990521-M0336GI 1814 P8990521-M0337GI 3651 F8990521-M0338GI 13684 F8990521-M0339GI 17736 F8990521-M0340GI 7010 F8990521-M0341GI 1913 F8990521-M0342GI 1679 F8990521-M0343GI 1623 F8990521-M0344GI 1640 F8990521 -M0345G1 1686 F8990521 -M0346GI 1640 F8990521-M0347GI 2241 F8990521-M0348GI 30546 F8990521-M0349GI 3148 F8990521-M0350GI 1758 F8990521-M0351GI 1554 F8990521-M0352GI 1748 F8990521 -M0353GI 1903 F8990521-M0354GI 7821 F8990521-M0355GI 35879 F8990521-M0356GI 3322 F8990521-M0357GI 2057 F8990521-M0358GI 1830 F8990521-M0359GI 2668 F8990521-M0360GI 3664 F8990521-M0361GI 3447 F8990521-M0393GI 4282 F8990521-M0394GI 2042 F8990521-M0395GI 1975 F8990521-M0396GI 6262' F8990521-M0397GI 1729 F8990521-M0398GI 1908 F8990521-M0399GI 2129 F8990521 -M0400GI 1768 F8990521-MO401GI 1883 F8990521-M0402GI 1811 F8990521-M0403GI 1859 F8990521-M0404GI 1792 F8990521-M0405GI 2052 F8990521-M0406GI 6575 F8990521-M0407GI 2274 Page 10 of 23 FSS Summary Report F8990521

F8990521-M0408GI 1917 F8990521 -M0409GI 2023 F8990521-M0410GI 1777 F8990521-M0411GI 1749 F8990521-M0412GI 1850 F8990521-M0413GI 1879 F8990521-M0414GI 2038 F8990521-M0415GI 2259 F8990521-M0416GI 6643 F8990521-M0417GI 2250 F8990521-M0418GI 5934 F8990521-M0419GI 2052 F8990521 -M0420GI 1773 F8990521-M0421GI 1715 F8990521 -M0422GI 1903 F8990521-M0423GI 1864 F8990521-M0424GI 2076 F8990521-M0425GI 1705 F8990521-M0426GI 1792 F8990521-M0427GI 1893 F8990521-M0428GI 7871 F8990521-M0429GI 3314 F8990521-M0430GI 1479 F8990521-M0431G1 2110 F8990521-M0432GI 1883 F8990521 -M0433GI 1845 F8990521 -M0434GI 1835 F8990521-M0435GI 1859 F8990521-M0436GI 1927 F8990521-M0437GI 1551 F8990521 -M0438GI 1623 F8990521 -M0439GI 1594 F8990521-M0440GI 1768 F8990521-M0441GI 1729 F8990521-M0442GI 1821 F8990521-M0443GI 1753 F8990521 -M0444GI 1826 F8990521 -M0445GI 1855 F8990521 -M0446GI 2457 F8990521-M0447GI 1912 F8990521 -M0448GI 1667 F8990521-M0449GI 2004 F8990521-M0450GI 1806 F8990521 -M0451 GI 1797 F8990521-M0452GI 1710 F8990521-M0453GI 1705 F8990521-M0454GI 1744 F8990521-M0455GI 1686 F8990521-M0456GI 1753 F8990521-M0457GI 1835 F8990521-M0458GI 1773 F8990521 -M0459GI 2447 F8990521-M0460GI 1802 F8990521-M0461GI 1594 F8990521-M0462GI 1845 F8990521-M0463GI 2206 Page I11 of 23 FSS Summary Report F8990521

F8990521-M0464GI 2842 F8990521-M0465GI 2818 F8990521-M0466GI 3131 F8990521 -M0467GI 2866 F8990521-M0468GI 4846 F8990521 -M0469GI 4196 F8990521-M0470GI 4610 F8990521-M0471GI 5366 F8990521 -M0472GI 9302 F8990521-M0473GI 8752 F8990521 -M0474GI 8487 F8990521-M0489GI 2038 F8990521 -M0490GI 2009 F8990521-M0491GI 1729 F8990521-M0492GI 1700 F8990521-M0493GI 1734 F8990521-M0494GI 1821 F8990521-M0495GI 2023 F8990521-M0496GI 1922 F8990521-M0497GI 1859 F8990521 -M0498GI 1378 F8990521-M0499GI 1349 F8990521 -M0500GI 1888 F8990521 -M0501 GI 1874 F8990521-M0502GI 1898 F8990521-M0503GI 1951 F8990521 -M0504GI 1623 F8990521,-M0505GI 1484 F8990521 -M0506GI 2023 F8990521-M0507GI 1898 F8990521 -M0508GI 2052 F8990521-M0509GI 2013 F8990521-M0510GI 1980 F8990521-MO511GI 1980 F8990521 -M0512GI 1450 F8990521-M0513GI 1792 F8990521-M0514GI 2023 F8990521-MO515GI 2115 F8990521-M0516GI 1922 F8990521-MO517GI 1908 F8990521 -M0518GI 1936 F8990521 -M0519GI 2139 F8990521 -M0520GI 1898 F8990521 -M0521GI 1888 F8990521-M0522GI 1522 F8990521-M0523GI 1855 F8990521-M0524GI 1903 F8990521 -M0525GI 1460 F8990521-M0526GI 2057 F8990521 -M0527GI 1378 F8990521-M0528GI 1917 F8990521-M0529GI 1908 F8990521 -M0530GI 1893 F8990521-M0531GI 1787 F8990521 -M0532GI 1782 F8990521-M0533GI 1888 Page 12 of 23 FSS Summary Report F8990521

F8990521-M0534GI 1850 F8990521 -M0535GI 1946 F8990521-M0536GI 2004 F8990521-M0537GI 2018 F8990521-M0538GI 2013

.F8990521-M0539GI 2317 F8990521 -M0540GI 2038 F8990521-M0541GI 1426 F8990521-M0542GI 1816 F8990521-M0543GI 1917 F8990521 -M0544GI 1941 F8990521-M0545GI 2038 F8990521-M0546GI 1985 F8990521-M0547GI 1956 F8990521 -M0548GI 1961 F8990521 -M0549GI 2033 F8990521-MO550GI 1898 F8990521-M0551GI 1329 F8990521-M0552GI 2009 F8990521 -M0553GI 2081 F8990521-M0554GI 1840 F8990521-M0555GI 1859 F8990521-M0556GI 1989 F8990521 -M0557GI 1994 F8990521 -M0558GI 2086 F8990521-M0559GI 1975 F8990521 -M0560GI 1985 F8990521-M0561GI 2018 F8990521-M0562GI 1811 F8990521-M0563GI 1628 F8990521-M0564GI 1999 F8990521 -M0565GI 1850 F8990521-M0566GI 1724 F8990521-M0567GI 1753 F8990521 -M0568GI 1922 F8990521-M0569GI 1946 F8990521MO570GI 1821 F8990521 -M0571 GI 2042 F8990521-M0572GI 1975 F8990521-M0573GI 1927 F8990521-M0574GI 1893 F8990521-M0575GI 1397 F8990521 -M0576GI 1850 F8990521-M0577GI 1411 F8990521-M0578GI 2717 F8990521-M0579GI 3121 F8990521-M0580GI 2086 F8990521-M0581GI 1970 F8990521-M0582GI 2018 F8990521-M0583GI 2052 F8990521-M0584GI 1691 F8990521-M0585GI 12028 F8990521-M0586GI 2717 F8990521 -M0587GI 1773 F8990521-M0588GI 1859 F8990521 -M0589GI 1951 Page 13 of 23 FSS Summary Report F8990521

F8990521-M0590GI 1975 F8990521-M0591GI 1903 F8990521-M0592GI 1869 F8990521-M0593GI 2105 F8990521-M0594GI 2004 F8990521 -M0595GI 1975 F8990521-M0596GI 1951 F8990521 -M0597GI 2038 F8990521 -M0598GI 1941 F8990521-M0599GI 1700 F8990521-MO600GI 1859 F8990521-MO601GI 1975 F8990521-M0602GI 2018 F8990521-M0603GI 2023 F8990521-M0604GI -1633 F8990521-M0605GI 1845 F8990521-M0606GI 1888 F8990521-M0607GI 1874 F8990521-M0608GI 1927 F8990521 -M0609GI 1580 F8990521-MO610GI 2129 F8990521 -M0611 GI 1932 F8990521-M0612GI 1700 F8990521-M0613GI 1749 F8990521 -M0614GI 1676 F8990521-M0615GI 1912 F8990521-M0616GI 1691 F8990521 -M061.7GI 1864 F8990521-M0618GI 1999 F8990521-M0619GI 1917 F8990521 -M0620GI 1975 F8990521-M0621GI 1893 F8990521-M0622GI 2057 F8990521-M0623GI 1970 F8990521 -M0624GI 1961 F8990521-M0625GI 1975 F8990521 -M0626GI 1724 F8990521-M0627GI 1975 F8990521 -M0628GI 2110 F8990521-M0629GI 1782 F8990521-M0630GI 1888 F8990521-M0631GI 1912 F8990521-M0632GI 1898 F8990521-M0633GI 2510 F8990521-M0634GI 1826 F8990521-M0635GI 1720 F8990521-M0636GI 1927 F8990521-M0637GI 1787 F8990521-M0638GI 1883 F8990521 -M0639GI 1879 F8990521 -M0640GI 1782 F8990521-M0641GI 1965 F8990521-M0642GI 1922 F8990521-M0643GI 2307 F8990521-M0644GI 2081 F8990521-M0645GI 1850 Page 14 of 23 FSS Summary Report F8990521

F8990521 -M0646GI 1975 F8990521-M0647GI. 1874 F8990521-M0648GI 1802 F8990521-M0649GI 1936 F8990521-M0650GI 2134 F8990521-M0651GI 2119 F8990521-M0652GI 1965 F8990521-M0653GI 2394 F8990521-M0654GI 2254 F8990521 -M0655GI 1989 F8990521 -M0656GI 1951 F8990521-M0657GI 1922 F8990521-M0658GI 2013 F8990521-M0659GI 1758 F8990521 -M0660GI 1932 F8990521-M0661GI 1855 F8990521-M0662GI 1883 F8990521 -M0663GI 3502 F8990521 -M0664GI 1985 F8990521-M0665GI 1999 F8990521-M0666GI 2288 F8990521 -M0667GI 2592 F8990521-M0668GI 2861 F8990521-M0669GI 3232 F8990521-M0670GI 3170 F8990521-M0671GI 3377 F8990521-M0672GI 2669 F8990521-M0673GI 2909 F8990521-M0674GI 2818 F8990521-M0675GI 2832 F8990521-M0676G[ 2991 F8990521-M0677GI 4436 F8990521-M0678GI 2856 F8990521-M0679GI 3039 F8990521-M0680GI 2818 F8990521-M0681GI 2929 F8990521-M0682GI 2876 F8990521-M0683GI 3097 F8990521-M0684GI 2876 F8990521-M0685GI 2500 F8990521-M0686GI 2625 F8990521-M0687GI 2736 F8990521-M0688GI 2630 F8990521-M0689GI 2611 F8990521-M0690GI 2606 F8990521-M0691GI 2702 F8990521-M0692GI 2895 F8990521-M0693GI 2837 F8990521-M0694GI 3035 F8990521-M0695GI 2697 F8990521-M0696GI 2678 F8990521-M0697GI 2943 F8990521-M0698GI 2832 F8990521-M0699GI 3064 F8990521-MO700GI 3006 F8990521-MO701GI 3198 Page 15 of 23 FSS Summary Report F8990521

F8990521-M0702GI 2934 F8990521-M0703GI 4798 F8990521-M0704GI 2924 F8990521-M0705GI 2885 F8990521-M0706GI 2958 F8990521-M0707GI 6402 F8990521-M0708GI 3680 F8990521-M0709GI 3632 F8990521-M0710GI 6599 F8990521-MO711GI .3410 F8990521-M0712GI 8251 F8990521-M0713GI 55482 F8990521-M0714GI 15019 F8990521-M0715GI 6108 F8990521 -M0716GI 6609 F8990521 -M0717GI 3309 F8990521 -M0718GI 3459 F8990521-M0719GI 3425 F8990521-M0720GI 3011 F8990521-M0721GI 2962 F8990521-M0722GI 2919 F8990521 -M0723GI 3141 F8990521-M0724GI 3068 F8990521-M0725GI 3184 F8990521-M0726GI 3179 F8990521-M0727GI 3035 F8990521-M0728GI 3001 F8990521-M0729GI 3454 F8990521-M0730GI 4576 F8990521-M0731GI 7259 F8990521-M0732GI 3001 F8990521-M0733GI 3035 F8990521 -M0734GI 3304 F8990521-M0735GI 3386 F8990521-M0736GI 3073 F8990521-M0737GI 3406 F8990521 -M0738GI 3531 F8990521-M0739GI 3598 F8990521-M0740GI 3536 F8990521 -M0741 GI 3502 F8990521-M0742GI 3463 F8990521-M0743GI 3675 F8990521-M0744GI 3459 F8990521 -M0745GI 3314 F8990521-M0746GI 3545 F8990521-M0747GI 3304 F8990521-M0748GI 3882 F8990521-M0749GI 3565 F8990521-M0750GI 3324 F8990521-M0751GI 4648 F8990521-M0752GI 3574 F8990521-M0753GI 3117 F8990521-M0754GI 3396 F8990521 -M0755GI 3391 F8990521-M0756GI 3666 F8990521-M0757GI 3295 Page 16 of 23 FSS Summary Report F8990521

F8990521-M0758GI 3117 F8990521-M0759GI 3049 F8990521-M0760GI 3039 F8990521-M0761GI 3131 F8990521-M0762GI 3512 F8990521-M0763GI 3309 F8990521-M0764GI 3319 F8990521-M0765GI 3131 F8990521-M0766GI 3478 F8990521-M0767GI 3362 F8990521 -M0768GI 3155 F8990521-M0769GI 2876 F8990521-M0770GI 3068 F8990521-M0771GI 3396 F8990521-M0772GI 3988 F8990521-M0773GI 3348 F8990521-M0774GI 3439 F8990521 -M0775GI 3391 F8990521-M0776GI 3468 F8990521-M0777GI 3820 F8990521-M0778GI 3324 F8990521-M0779GI 3685 F8990521-M0780GI 3545 F8990521-M0781GI 3213 F8990521-M0782GI 3425 F8990521-M0783GI 3618 F8990521-M0784GI 3179 F8990521-M0785GI 3516 F8990521-M0786GI 3329 F8990521-M0787GI 3309 F8990521-M0788GI 3415 F8990521-M0789GI 3006 F8990521 -M0790GI 3174 F8990521-M0791GI 3487 F8990521-M0792GI 4321 F8990521-M0793GI 3020 F8990521 -M0794GI 2635 F8990521 -M0795GI 2765 F8990521-M0796GI 2953 F8990521-M0797GI 3280 F8990521-M0798GI 3463 F8990521-M0799GI 3223 F8990521 -M0800GI 3401 F8990521-M0801GI 3391 F8990521-M0802GI 3285 F8990521-M0803GI 3550 F8990521-M0804GI 3372 F8990521-MO805GI 3714 F8990521-M0806GI 3878 F8990521-M0807GI 4085 F8990521 -M0808GI 3661 F8990521-M0809GI 3271 F8990521-MO810GI 2919 F8990521-MO811GI 3593 F8990521-M0812GI 3512 F8990521-M0813GI 3285 Page 17 of 23 FSS Summary Report F8990521

F8990521-M0814GI 3521 F8990521 -M0815GI 3444 F8990521-M0816GI 3203 F8990521-MO817GI 3439 F8990521-M0818GI 3637 F8990521 -M0819GI 3897 F8990521-M0820GI 4056 F8990521-M0821GI 3661 F8990521-M0822GI 3324 F8990521-M0823GI 3829 F8990521-M0824GI 3776 F8990521-M0825GI 4118 F8990521-M0826GI 5135 F8990521-M0827GI 4557 F8990521-M0828GI 5226 F8990521-M0829GI 13627 F8990521-M0830GI 24624 F8990521 -M0831 GI 3507 F8990521-M0832GI 3685 F8990521-M0833GI 3097 F8990521-M0834GI 2596 F8990521 -M0835GI 2466 F8990521-M0836GI 2495 F8990521-M0837GI 2481 F8990521-M0838GI 2447 F8990521-M0839GI 2529 F8990521-M0840GI 2433 F8990521-M0841GI 2182 F8990521-M0842GI 2404 F8990521 -M0843GI 2428 F8990521-M0844GI 2437 F8990521-M0845GI 2182 F8990521-M0846GI 2341 F8990521-M0847GI 2278 F8990521-M0848GI 2317 F8990521-M0849GI 2370 F8990521-M0850GI 2476 F8990521-M0851GI 2558 F8990521-M0852GI 2399 F8990521-M0853GI 3145 F8990521-M0854GI 3420 F8990521-M0855GI 3170 F8990521-M0856GI 2360 F8990521-M0857GI 2235 F8990521-M0858GI 2269 F8990521-M0859GI 2139 F8990521 -M0860GI 2327 F8990521-M0861GI 2519 F8990521-M0862GI 2577 F8990521-M0863GI 4750 F8990521 -M0864GI 4143 F8990521-M0865GI 2519 F8990521-M0866GI 2746 F8990521 -M0867GI 3194 F8990521-M0868GI 4037 F8990521-M0869GI 37066 Page 18 of 23 FSS Summary Report F8990521

F8990521-M0870GI 8160 F8990521-M0871GI 75621 F8990521-M0872GI 14330 F8990521-M0873GI 6122 F8990521-M0874GI 2394 F8990521-M0875GI 2283 F8990521-M0876GI 2543 F8990521-M0877GI 5024 F8990521-M0878GI 15060 F8990521 -M0879GI 20047 F8990521 -MO880GI 6747 F8990521 -M0881 GI 3095 F8990521-M0882GI 3016 F8990521-M0883GI 2507 F8990521-M0884GI 2822 F8990521 -M0885GI 11109 F8990521-M0886GI 4934 F8990521-M0887GI 2685 F8990521-M0888GI 2323 F8990521-M0889GI 2212 F8990521-M0890GI 1992 F8990521-M0891GI 2239 F8990521-M0892GI 2538 F8990521-M0893GI 8177 F8990521-M0894GI 13363 F8990521 -M0895GI 3190 F8990521-M0896GI 2475 F8990521-M0897GI 3148 F8990521-M0898GI 4693 F8990521-M0899GI 5003 F8990521 -M0900GI 4503 F8990521-M0901GI 5076 F8990521-M0902GI 4698 F8990521-M0903GI 6148 F8990521-M0904GI 7677 F8990521 -M0905GI 2522 F8990521-M0906GI 2701 F8990521-M0907GI 2291 F8990521 -M0908GI 2638 F8990521-M0909GI 2995 F8990521-M0910GI 3836 F8990521-MO911GI 4635 F8990521 -M0912GI 3043 F8990521-M0913GI 3736 F8990521-M0914GI 5817 F8990521-M0915GI 2554 F8990521-M0916GI 2170 F8990521-M0917GI 2528 F8990521-M0918GI 2317 F8990521 -M0919GI 2328 F8990521-M0920GI 3384 F8990521-M0921GI 3326 F8990521-M0922GI 3311 F8990521-M0923GI 3221

.F8990521-M0924GI 16852 F8990521 -M0925GI 4756 Page 19 of 23 FSS Summary Report F8990521

F8990521-M0926GI 3642 F8990521-M0927GI 6915 F8990521-M0928GI 3400 F8990521 -M0929GI 3326 F8990521 -M0930GI 4729 F8990521-M0931GI 3169 F8990521 -M0932GI 3232 F8990521 -M0933GI 3473 F8990521 -M0934GI 3263 F8990521-M0935GI 4141 F8990521-M0936GI 5344 F8990521-M0937GI 23311 F8990521 -M0938GI 2633 F8990521-M0939GI 2202 F8990521 -M0940GI 2522 F8990521-M0941GI 2491 F8990521 -M0942GI 3205 F8990521 -M0943GI 2218 F8990521-M0944GI 3095 F8990521-M0945GI 4961 F8990521-M0946GI 38586 F8990521-M0947GI .4051 F8990521 -M0948GI 2181 F8990521 -M0949GI 2065 F8990521 -M0950GI 2249 F8990521 -M0951 GI 2643 F8990521-M0952GI 2806 F8990521-M0953GI 2375 F8990521-M0954GI 3684 F8990521-M0955GI 11929 F8990521-M0956GI 14509 F8990521 -M0957GI 63847 F8990521 -M0958GI 5139 F8990521 -M0959GI 2338 F8990521 -M0960GI 2407 F8990521-M0961GI 2223 F8990521-M0962GI 1908 F8990521-M0963GI 2254 Mean: 3327 Median: 2086 Standard Deviation: 5275 Ranqe:

1267-75621 Page 20 of 23 FSS Summary Report F8990521

Survey Unit Data Assessment:

The survey design required 918 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 2t of 23 FSS Summary Report F8990521

Table 4. Data Assessment Results Survey Results Parameter Value Comment Material Background Used (dpm/]l00 cm2): N/A Ambient Background Used (dpm/100 cm2): N/A Average Ambient BKG = 0 Actual Direct Measurements (N): 918 Median (dpm/100 cm 2): 2086 Mean (dpm/100 cm 2) 3327 Direct Measurement Standard Deviation 5275 (dpm/l100 cm 2):

Total Standard Deviation (dpm/O10 cm 2): 5275 Based on samples and backgrounds.

Maximum (dpm/100 cm 2): 75621 Material Type: N/A Background Subtract Not Applied Sign Test Final N Value: 918 S+ Value: 918 Critical Value: 484 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 22 of 23 FSS Summary Report F8990521

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 for pipe surveys. No direct measurements exceeded the DCGL of 100000 dpm/100 cm 2 . This system will be grouted.

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 F8990521 meets the release criteria of 10CFR20.1402.

Page 23 of 23 FSS Summary Report F8990521

Attachment 1 Maps March 18, 2008 Survey Unit F8990521

-v (D

0 00 0---

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• SMUID AUXILI, \RY BUILDING DRAINS 3='0 2"0 180 40 LF 3 SM LF 9 SM SACRAMENTO MUNICIPAL ACID WASTE UTILITY DISTRICT FILF3 F8*n0,S2 F8990521 -M2 RD RAYMOND RHFET 3 OF 3

Attachment 2 Instrumentation March 18, 2008 Survey Unit F8990521

Table 2-1. Survey Unit Instrumentation Instrument Detector MDC Static MDC Scan Model; Serial No. Model; Serial No. (dpm/100 cm2 ) (dpm/100 cm 2 )

M2350; 203484 44-159; 215855 5720 N/A M2350; 142512 44-159; 201637 5720 N/A The MDC noted for the detector model 44-159 is for the 3" diameter piping which is the most conservative.

Table 2-2. Investigation Criteria and DCGL Value Parameter (dpm/100 cm 2 )

Investigation Criteria - Direct 100000 Investigation Criteria - Scan N/A DCGLw 100000 DCGLEMc N/A Page 2 of 2 Att. 2 Instrumentation F8.990521

Attachment 3 Investigation March 18, 2008 Survey Unit F8990521 (none required)

Attachment 4 Data Assessment March 18,,2008 Survey Unit F8990521

F8990521 Gross Activity Sample Results Quantile Plot 00 DCGL = 100000 dpm/1 00cm2 80,000 70,000 60,000 50,000 40,000 30,000 20,000 0.>

10,000 0 12086 0 20 40 60 80 100 Percentile 100

• Direct Measurements (dpm/100cm2) -median - - 75th Percentile .... 50th Percentile]

CD 0 F8990521 Gross Activity Sam pie Results Scatter Plot DCGL = 100000 dpm/100cm2 90000 80000 70000 E

0 60000 50000 00 40000 30000 0 CD 0- 20000 -- - - - - - - - t - ------- - - --

0 0

- -. 19152 Cn 10000 D 08 0 0 3327 CD 0

-10000 - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -12499

-20000.

114 i- rO N~ r* r - (qr 0 ( (0 (D( to P.. 1'-0(0 (0 C(0 CO0 ) 0U) 0 00 CODMQasurement Locati Measurement Locations 00 o

0 Gross Activity - Average - - "+3StDev" - - "-3StDev "

0 0

F8990521 Gross Activity Frequency Plot DCGL = 100000 dpm/1 00crrf 900 800 700 a-600 0) 600 0.

400 Cl)

Cl)

CD C/) 300 CD 200 100 0

IITI N-00 Bins - Upper End Value (dpm/1 00cm2)