402-R-98-021 ENVIRONMENTAL RADIATION DATA REPORT 96 October - December 1998 United States Environmental Protection Agency Office of Radiation and Indoor Air ------- (This page intentionally left blank) ------- Preface Environmental Radiation Data (ERD) is compiled and published quarterly by the Office of Radiation and Indoor Air's National Air and Radiation Environmental Laboratory (NAREL) in Montgomery, Alabama, and contains data from the Environmental Radiation Ambient Monitoring System (ERAMS). ERD is published in both hard-copy and electronic formats. Electronic reports are available online atwww.epa.gov/narel. The United States Environmental Protection Agency established ERAMS in 1973 with an emphasis on identifying trends in the accumulation of long-lived radionuclides in the environment. ERAMS is comprised of a nationwide network of sampling stations that provide air, precipitation, surface water, drinking water, and milk samples. Sampling locations are selected to provide optimal population coverage while functioning to monitor fallout from nuclear devices and other forms of radioactive contamination of the environment. The radiation analyses performed on these samples include gross alpha and gross beta analyses, gamma analyses, and radionuclide-specific analyses for uranium, plutonium, strontium, iodine, radium, and tritium. This monitoring effort also provides ancillary information on natural background levels and on routine and accidental releases into the environment from stationary sources. The radiochemical procedures used by NAREL to analyze the ERAMS samples are contained in the Eastern Environmental Radiation Facility Radiochemistry Procedures Manual (EPA 520/5-84-006). Station operation and sample collection are in accordance with procedures contained in the ERAMS Manual (EPA 520/5-84-007, 008, 009). vn ------- (This page intentionally left blank) ------- Acknowledgments All sampling for the Environmental Radiation Ambient Monitoring System (ERAMS) is performed by volunteer collectors who are frequently members of the health departments or related environmental agencies of their respective states. The National Air and Radiation Environmental Laboratory (NAREL) on behalf of the U.S. Environmental Protection Agency would like to acknowledge the time and effort of these volunteer collectors, who are so essential to the successful operation of ERAMS. The efforts of the sample collectors are especially appreciated during times of emergency operation when sampling frequencies are increased and schedules are sometimes demanding. IX ------- (This page intentionally left blank) ------- Data Reporting Conventions Every laboratory measurement involves uncertainty. When there is little or no radioactivity in a sample, one consequence of measurement uncertainty is the possibility of obtaining a measured value that is less than zero. Such a negative result occurs when random effects in the measurement process cause the measured value for the sample to be less than that of the blank or background, which is subtracted from it. From April 1991 to December 1995, negative results were reported as "not detected" or "ND," and gamma analysis results that were less than their estimated measurement uncertainties were also reported as "ND." In January 1996 both of these practices were discontinued. Although negative activities are physically impossible, the inclusion of negative results in the report allows better statistical analysis of the data. Results of gamma analyses are still reported as "ND" when gamma-emitting radionuclides are not detected. Measurement Uncertainty Each measured value y is reported with an expanded uncertainty U=k uc(y), which is determined from the combined standard uncertainty uc(y) and the coverage factor k = 2. The interval from^ - U toy+Uis estimated to have a level of confidence of approximately 95%. Significant Figures Expanded uncertainties are reported to two significant figures. Measurement results are rounded to the corresponding number of decimal places. Detection Capability The minimum detectable concentrations (MDCs) for each radionuclide are shown in Table 1. The MDC is defined as the minimum concentration that gives a 95% probability of detection when the detection criteria are chosen to give only a 5% probability of false detection in a blank sample. XI ------- (This page intentionally left blank) ------- Table 1 Reporting Units and Minimum Detectable Concentrations for Radionuclide Analyses Radionuclide Gross Alpha Gross Beta Tritium * Plutonium-23 8,23 9/240 f Uranium-234,235,238 Radium-226 Strontium-90 {Iodine-131 Cesium- 137 { Barium-140 Potassium Potassium-40 Media Water Air Water Precipitation Water Milk Air Water Air Water Water Milk Water Milk (gamma) Water (gamma) Water Milk Water Milk Water Milk Water Water Reporting Unit pCi/L pCi/m3 pCi/L pCi/L pCi/L pCi/L aCi/m3 pCi/L aCi/m3 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L g/L g/L pCi/L Minimum Detectable Concentration 2 0.0015 2 2 150 150 0.75 0.1 0.75 0.1 0.02 2 1 4 4 0.3 5 5 15 15 0.06 0.06 50 * The MDC for air is based on an assumed total sample volume of 120,000 m3. Measurement by alpha spectrometry includes combined activities of 239Pu and 240Pu, since the relative contributions of these two isotopes cannot be determined. f The MDC for air is based on an assumed total sample volume of 120,000 m3. J Activity as of the day of counting. Xlll ------- (This page intentionally left blank) ------- 1. Air Program Airborne Participates and Precipitation Gross beta radioactivity measurements and certain specific analyses are performed on air particulates and precipitation samples as indicator measurements in assessing the general (national) impact of all contributing sources on environmental levels of radiation. Airborne particulates are collected continuously at field stations representing wide geographic coverage, including present and potential sources of environmental radioactivity. Sampling sites are located throughout the United States. Filters (10-cm diameter synthetic fiber) from air samplers are changed twice weekly and field measurements are made with a G-M survey meter at 5 hours after collection to allow for decay of natural radon isotopes and their progeny. Field estimates are reported to appropriate EPA officials by telephone or mail depending on the activity levels found. The filters are sent to NAREL for more sensitive analyses in a low background beta counter. Gamma scans are performed on all filters showing gross beta counts greater than 1 pCi/m3. The laboratory obtained values are usually lower than the field estimates due to the decay of naturally occurring radionuclides between the times of the two measurements. Precipitation samples are collected at most field stations collecting air filters. These samples are also sent to NAREL where they are composited monthly for gamma scans, tritium, and gross beta activity measurements. A compilation of individual measurements is available from the National Air and Radiation Environmental Laboratory, 540 South Morris Avenue, Montgomery, AL 36115-2601. ------- Table 2 Gross Beta in Airborne Particulates October 1998 Location AK: Fairbanks AL: Montgomery AR: Little Rock AZ: Phoenix CA: Berkeley CA: Los Angeles CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Boise ID: Idaho Falls IN: Indianapolis KS: Topeka ME: Augusta MI: Lansing MN: Welch MS: Jackson NC: Charlotte ND: Bismarck NH: Concord NJ: Trenton NV: Las Vegas NY: Albany NY: New York City NY: Yaphank OH: Columbus OH: Paine sville OH: Ross OR: Portland PA: Harrisburg PA: Pittsburgh SC: Barnwell SC: Columbia SD: Pierre TN: Nashville Number of Samples 1 9 9 4 8 9 9 9 9 6 4 9 9 9 9 8 8 9 18 9 5 5 9 6 9 4 7 8 3 8 9 9 9 9 1 9 2 9 5 -hour Field Estimate Max Min Avg (pCi/m3) 0.0 0.0 0.0 0.2 0.0 0.1 0.2 0.0 0.1 1.0 0.4 0.7 0.2 0.1 0.1 0.3 0.1 0.2 2.0 0.5 1.0 0.1 0.0 0.1 0.3 0.1 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.4 0.1 0.2 0.9 0.2 0.6 0.9 0.1 0.2 1.2 0.2 0.5 0.1 0.0 0.1 0.6 0.1 0.3 1.2 0.1 0.3 0.7 0.1 0.5 0.1 0.0 0.1 0.7 0.2 0.4 0.1 0.0 0.1 0.3 0.1 0.2 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.3 0.1 0.2 0.4 0.0 0.1 0.7 0.1 0.4 0.0 0.0 0.0 0.7 0.0 0.3 0.1 0.0 0.1 0.6 0.1 0.3 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.008 0.008 0.008 0.063 0.012 0.035 0.020 0.006 0.013 0.025 0.009 0.017 0.017 0.004 0.008 0.023 0.008 0.015 0.020 0.007 0.015 0.011 0.002 0.007 0.016 0.003 0.010 0.016 0.007 0.011 0.006 0.005 0.005 0.030 0.006 0.012 0.023 0.005 0.011 0.017 0.006 0.011 0.019 0.006 0.012 0.015 0.005 0.010 0.007 0.004 0.006 0.019 0.005 0.010 0.021 0.004 0.010 0.030 0.009 0.017 0.025 0.013 0.016 0.021 0.007 0.013 0.009 0.002 0.006 0.014 0.007 0.010 0.021 0.007 0.013 0.012 0.003 0.009 0.011 0.003 0.008 0.010 0.003 0.008 0.017 0.012 0.015 0.017 0.006 0.011 0.023 0.008 0.015 0.018 0.003 0.008 0.022 0.004 0.013 0.029 0.006 0.014 0.010 0.010 0.010 0.024 0.010 0.015 0.012 0.006 0.009 0.021 0.010 0.017 ------- Table 2 (continued) Gross Beta in Airborne Particulates October 1998 Location TN: Oak Ridge/Bethel TN: Oak Ridge/K25 TN: Oak Ridge/Melton TN: Oak Ridge/Y12 E TN:OakRidge/Y12W TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WA: Olympia WA: Spokane WI: Madison Number of Samples 9 9 9 9 9 9 8 5 9 2 9 8 5 -hour Field Estimate Max Min Avg (pCi/m3) 1.2 0.4 0.8 1.3 0.4 0.8 1.4 0.5 0.8 2.1 0.2 0.9 0.7 0.2 0.4 0.4 0.0 0.1 0.8 0. 0.5 0.2 0. 0.1 0.7 0.4 0.6 1.2 0. 0.7 0.5 0. 0.3 0.4 0. 0.2 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.024 0.009 0.016 0.024 0.008 0.016 0.022 0.009 0.015 0.025 0.009 0.015 0.025 0.009 0.015 0.023 0.006 0.010 0.024 0.005 0.013 0.031 0.009 0.015 0.018 0.006 0.011 0.015 0.003 0.009 0.035 0.005 0.013 0.019 0.005 0.010 ------- Table 3 Gross Beta in Airborne Particulates November 1998 Location AK: Fairbanks AL: Montgomery AR: Little Rock AZ: Phoenix CA: Berkeley CA: Los Angeles CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Boise ID: Idaho Falls IN: Indianapolis KS: Topeka ME: Augusta MI: Lansing MN: Welch MS: Jackson NC: Charlotte ND: Bismarck NH: Concord NJ: Trenton NV: Las Vegas NY: Albany NY: New York City NY: Yaphank OH: Columbus OH: Paine sville OH: Ross OR: Portland PA: Harrisburg PA: Pittsburgh SC: Barnwell SC: Columbia SD: Pierre TN: Knoxville Number of Samples 1 9 8 4 8 7 8 9 9 7 4 4 7 7 7 8 6 9 18 7 3 4 8 6 9 4 7 6 3 8 7 7 10 9 2 7 6 4 5 -hour Field Estimate Max Min Avg (pCi/m3) 0.0 0.0 0.0 0.1 0.0 0.1 0.2 0.0 0.1 1.0 0.4 0.7 0.1 0.0 0.1 0.4 0.1 0.2 1.1 0.2 0.6 0.1 0.0 0.1 0.4 0.1 0.3 0.2 0.0 0.1 0.0 0.0 0.0 0.2 0.0 0.1 0.6 0.1 0.3 0.1 0.0 0.1 0.6 0.1 0.3 0.2 0.0 0.1 0.3 0.1 0.2 0.7 0.1 0.3 0.8 0.1 0.3 0.1 0.0 0.0 0.7 0.1 0.3 0.2 0.0 0.1 0.3 0.0 0.2 0.1 0.0 0.0 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.4 0.1 0.2 0.2 0.0 0.1 1.4 0.1 0.4 0.1 0.0 0.0 0.7 0.1 0.3 0.2 0.0 0.1 1.7 0.5 1.1 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.013 0.013 0.013 0.041 0.014 0.025 0.020 0.009 0.016 0.029 0.016 0.023 0.008 0.002 0.005 0.019 0.005 0.013 0.014 0.007 0.009 0.015 0.003 0.008 0.021 0.007 0.012 0.020 0.008 0.013 0.013 0.004 0.008 0.015 0.008 0.012 0.014 0.006 0.009 0.016 0.006 0.012 0.018 0.008 0.013 0.017 0.007 0.013 0.014 0.001 0.007 0.019 0.005 0.011 0.023 0.004 0.012 0.019 0.013 0.016 0.028 0.021 0.026 0.023 0.009 0.017 0.012 0.002 0.007 0.021 0.005 0.012 0.023 0.007 0.014 0.019 0.007 0.012 0.017 0.005 0.011 0.022 0.004 0.011 0.019 0.016 0.018 0.020 0.005 0.012 0.022 0.008 0.016 0.009 0.002 0.005 0.024 0.006 0.014 0.020 0.007 0.014 0.019 0.015 0.017 0.024 0.014 0.018 0.021 0.011 0.014 0.040 0.022 0.030 ------- Table 3 (continued) Gross Beta in Airborne Particulates November 1998 Location TN: Nashville TN: Oak Ridge/Bethel TN: Oak Ridge/K25 TN: Oak Ridge/Melton TN: Oak Ridge/Y12 E TN:OakRidge/Y12W TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WA: Olympia WA: Spokane WI: Madison Number of Samples 7 9 9 9 9 9 8 7 4 8 5 9 8 5 -hour Field Estimate Max Min Avg (pCi/m3) 0.3 0.1 0.2 0.8 0.3 0.6 0.9 0.4 0.6 0.8 0.3 0.5 1.0 0.4 0.6 0.6 0.2 0.3 0.1 0.0 0.1 1.4 0.1 0.9 0.2 0.1 0.1 0.9 0.4 0.7 0.1 0.0 0.0 0.4 0.1 0.2 0.6 0.2 0.3 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.023 0.015 0.018 0.037 0.014 0.019 0.019 0.013 0.016 0.022 0.012 0.016 0.023 0.013 0.017 0.022 0.014 0.017 0.015 0.006 0.011 0.040 0.013 0.022 0.015 0.006 0.012 0.019 0.008 0.013 0.005 0.001 0.004 0.018 0.002 0.009 0.023 0.008 0.014 ------- Table 4 Gross Beta in Airborne Particulates December 1998 Location AK: Fairbanks AL: Montgomery AR: Little Rock AZ: Phoenix CA: Berkeley CA: Los Angeles CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Boise ID: Idaho Falls IN: Indianapolis KS: Topeka ME: Augusta MI: Lansing MN: Welch MS: Jackson NC: Charlotte NC: Wilmington ND: Bismarck NH: Concord NJ: Trenton NV: Las Vegas NY: Albany NY: New York City NY: Yaphank OH: Columbus OH: Paine sville OH: Ross OR: Portland PA: Harrisburg PA: Pittsburgh SC: Barnwell SC: Columbia SD: Pierre Number of Samples 3 9 8 5 7 10 7 9 9 6 2 8 10 8 10 9 8 8 6 6 3 1 3 10 1 9 5 7 6 5 6 7 7 9 9 1 8 7 5 -hour Field Estimate Max Min Avg (pCi/m3) 0.0 0.0 0.0 0.4 0.0 0.1 0.4 0.0 0.1 0.5 0.2 0.4 0.4 0.0 0.1 0.5 0.0 0.2 1.4 0.1 0.8 0.4 0.0 0.1 0.5 0.1 0.2 0.2 0.0 0.1 0.0 0.0 0.0 0.9 0.1 0.4 0.7 0.1 0.3 0.4 0.1 0.2 0.9 0.4 0.6 0.1 0.0 0.1 0.3 0.1 0.2 1.9 0.1 0.8 0.3 0.0 0.1 0.1 0.0 0.1 0.6 0.1 0.4 0.3 0.0 0.1 0.3 0.1 0.2 0.1 0.0 0.0 0.2 0.0 0.1 0.1 0.0 0.0 0.1 0.0 0.1 0.4 0.1 0.2 0.1 0.0 0.0 0.8 0.2 0.4 0.0 0.0 0.0 0.8 0.0 0.3 0.3 0.1 0.2 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.037 0.014 0.025 0.024 0.010 0.019 0.015 0.010 0.014 0.028 0.018 0.023 0.011 0.003 0.007 0.026 0.005 0.013 0.019 0.004 0.009 0.015 0.006 0.010 0.021 0.008 0.014 0.012 0.006 0.009 0.008 0.006 0.007 0.020 0.009 0.015 0.035 0.003 0.013 0.025 0.005 0.012 0.017 0.009 0.013 0.022 0.013 0.016 0.025 0.007 0.012 0.019 0.007 0.012 0.019 0.011 0.016 0.022 0.011 0.014 0.016 0.011 0.014 0.009 0.009 0.009 0.012 0.006 0.010 0.020 0.006 0.010 0.006 0.006 0.006 0.027 0.004 0.015 0.024 0.010 0.017 0.021 0.009 0.013 0.016 0.007 0.011 0.024 0.012 0.019 0.017 0.009 0.013 0.018 0.009 0.014 0.012 0.002 0.005 0.025 0.010 0.016 0.021 0.009 0.015 0.012 0.012 0.012 0.020 0.009 0.012 0.014 0.004 0.010 ------- Table 4 (continued) Gross Beta in Airborne Particulates December 1998 Location TN: Knoxville TN: Nashville TN: Oak Ridge/Bethel TN: Oak Ridge/K25 TN: Oak Ridge/Melton TN: Oak Ridge/Y12 E TN:OakRidge/Y12W TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WA: Olympia WA: Spokane WI: Madison Number of Samples 8 8 9 9 9 9 9 8 8 5 6 4 9 5 5 -hour Field Estimate Max Min Avg (pCi/m3) 1.5 0.0 0.6 0.2 0.0 0.1 1.0 0.0 0.3 1.1 0.0 0.3 0.7 0.0 0.3 0.7 0.0 0.3 0.3 0.0 0.2 0.3 0.0 0.1 2.7 0.4 1.2 0.1 0.0 0.1 0.7 0.2 0.5 0.0 0.0 0.0 0.2 0.0 0.1 1.0 0.2 0.5 NAREL Lab Measurement Max Min Avg (pCi/m3) 0.024 0.010 0.019 0.024 0.007 0.016 0.019 0.007 0.015 0.019 0.006 0.014 0.018 0.007 0.014 0.018 0.007 0.014 0.020 0.007 0.015 0.017 0.007 0.013 0.037 0.011 0.021 0.029 0.007 0.017 0.015 0.006 0.010 0.003 0.002 0.002 0.019 0.001 0.008 0.024 0.008 0.015 ------- Table 5 Gross Beta and Specific Gamma in Precipitation October 1998 Location AL: Montgomery AR: Little Rock AZ: Phoenix CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Idaho Falls ME: Augusta MI: Lansing MN: Minneapolis MN: Welch NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NM: Santa Fe NY: Albany NY: Yaphank OH: Paine sville OR: Portland PA: Harrisburg SC: Barnwell SC: Columbia TN: Knoxville TN: Nashville TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WI: Madison Gross Beta Activity pCi/L ±2u 1.09 1.84 4.88 13.57 2.18 1.49 2.07 0.38 0.67 1.70 2.31 1.73 2.64 8.48 1.89 0.67 0.99 1.42 1.60 5.26 1.21 24.4 1.47 0.80 1.89 2.03 1.40 0.92 0.67 0.34 0.67 2.61 39.0 0.70 0.27 0.34 0.49 0.78 0.35 0.31 0.35 0.24 0.25 0.32 0.37 0.34 0.39 0.71 0.34 0.26 0.28 0.30 0.32 0.52 0.30 1.0 0.31 0.26 0.34 0.35 0.31 0.26 0.25 0.23 0.26 0.39 1.4 0.25 Specific Gamma Activity Nuclide pCi/L ± 2u Be7 Be7 Be7 Be7 T1208 K40 Be7 Pb212 T1208 Be7 Be7 Be7 Pb212 Bi212 K40 ND 53 28 ND ND 56 29 47 25 ND ND ND ND 67 31 ND 3.0 5.2 24 42 37 20 3.8 3.3 1.7 1.7 ND ND ND ND 89 40 ND ND 48 18 ND 37 28 ND ND ND 2.9 3.5 43 37 ND ND 42 43 ND Note: ND = Not Detected ------- Table 6 Gross Beta and Specific Gamma in Precipitation November 1998 Location AL: Montgomery AR: Little Rock AZ: Phoenix CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Idaho Falls ME: Augusta MI: Lansing MN: Minneapolis MN: Welch NC: Charlotte ND: Bismarck NE: Lincoln NH: Concord NM: Santa Fe NY: Albany NY: Yaphank OH: Paine sville OR: Portland PA: Harrisburg SC: Barnwell SC: Columbia TN: Nashville TX: Austin UT: Salt Lake City VA: Lynchburg WA: Olympia WI: Madison Gross Beta Activity pCi/L ±2u 1.34 2.73 1.32 2.41 3.18 1.58 1.16 0.39 1.45 3.62 3.64 1.42 1.28 6.26 2.28 1.83 0.68 2.12 1.69 2.99 3.83 1.89 1.43 3.29 17.87 2.35 2.92 0.46 1.16 12.55 0.28 3.72 0.31 0.39 0.31 0.36 0.40 0.32 0.30 0.24 0.31 0.45 0.43 0.31 0.30 0.61 0.35 0.35 0.26 0.36 0.33 0.39 0.44 0.33 0.31 0.51 0.95 0.37 0.43 0.23 0.29 0.76 0.21 0.43 Specific Gamma Activity Nuclide pCi/L ± 2u Be7 Pb212 Be7 T1208 Be7 Be7 Be7 T1208 Be7 K40 Be7 T1208 Pb212 T1208 Pb212 Be7 T1208 Be7 Be7 Be7 Be7 Pb212 K40 Be7 50 18 4.7 3.0 61 28 2.7 4.2 ND 42 19 64 17 ND 26 28 2.3 1.8 ND ND 78 17 9 13 ND ND 47 18 1.8 1.8 5.3 6.5 2.3 4.1 ND 5.1 6.9 40 26 2.1 3.6 73 18 ND 58 18 59 24 37 26 4.2 6.0 ND ND ND ND 26 38 ND 33 19 Note: ND = Not Detected ------- Table 7 Gross Beta and Specific Gamma in Precipitation December 1998 Location AL: Montgomery AR: Little Rock AZ: Phoenix CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Boise ID: Idaho Falls ME: Augusta MI: Lansing MN: Minneapolis MN: Welch NC: Charlotte NC: Wilmington NY: Albany NY: Yaphank OH: Paine sville OR: Portland SC: Barnwell SC: Columbia TN: Knoxville TN: Nashville TX: Austin UT: Salt Lake City VA: Lynchburg WA: Olympia Gross Beta Activity pCi/L ±2u 3.53 1.86 1.83 7.98 4.01 2.47 1.07 1.11 1.44 5.40 6.57 2.93 1.28 4.23 2.51 0.74 2.66 2.66 3.99 1.54 2.81 2.15 3.65 2.45 1.75 3.80 15.93 1.34 0.44 0.35 0.41 0.61 0.45 0.40 0.29 0.33 0.36 0.57 0.57 0.40 0.36 0.46 0.37 0.26 0.39 0.38 0.46 0.35 0.39 0.36 0.44 0.38 0.37 0.50 0.85 0.34 Specific Gamma Activity Nuclide pCi/L ± 2u Be7 T1208 Be7 Be7 K40 Be7 Be7 Be7 Be7 Pb212 K40 Be7 K40 Be7 72 35 ND 3.4 4.9 109 35 ND 60 48 33 37 ND ND ND 71 31 ND ND ND 50 32 ND 55 36 ND 81 25 4.5 6.5 20 32 ND ND 68 29 ND ND 28 28 54 23 Note: ND = Not Detected 10 ------- Table 8 Tritium in Precipitation October - December 1998 Location AL: Montgomery AR: Little Rock AZ: Phoenix CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami IA: Iowa City ID: Boise ID: Idaho Falls ME: Augusta MI: Lansing MN: Minneapolis MN: Welch NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NM: Santa Fe NY: Albany NY: Yaphank OH: Painesville OR: Portland PA: Harrisburg SC: Barnwell SC: Columbia TN: Knoxville TN: Nashville TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WA: Olympia WI: Madison October 1998 pCi/L ±2u -64 76 9 73 18 74 5 73 -15 79 77 83 -21 72 23 80 44 74 NS 46 75 60 82 15 80 26 73 26 74 13 80 -16 79 -5 72 35 74 23 80 82 76 11 80 -8 79 44 75 23 73 16 80 15 80 -11 79 16 80 3 80 26 74 46 75 -2 72 -5 79 NS 35 74 November 1998 pCi/L ±2u 5 76 129 81 54 78 105 79 127 78 32 77 -5 75 5 76 -9 75 NS 57 77 -5 72 39 77 21 76 0 75 151 82 NS 26 76 24 76 56 78 23 75 51 78 118 81 54 78 -2 74 37 77 500 96 86 79 NS 28 77 56 77 NS 60 77 9 76 42 76 16 76 December 1998 pCi/L ±2u 21 79 15 79 8 79 NS 45 76 61 77 -23 73 23 79 -10 78 21 79 15 79 52 76 32 80 31 80 81 82 125 80 63 77 NS NS NS NS 81 78 84 78 52 81 37 80 NS 40 80 60 77 6 79 93 78 -31 77 NS 26 79 77 78 -8 78 NS Note: NS = No Sample 11 ------- Plutonium and Uranium in Airborne Particulates and Precipitation Environmental radiation levels of plutonium and uranium are determined by the analysis of annually composited samples (air filters) collected from the continuously operating airborne paniculate samplers. Concentrations of plutonium-23 8, combined plutonium-239 and 240, anduranium-234,235, and 23 8 are determined by alpha spectrometry following chemical separation. The volume of air represented by the annual composite ranges from 120,000 to 500,000 cubic meters. Plutonium and uranium results are published when they become available. 12 ------- Table 9 Plutonium and Uranium in Airborne Particulates January - December 1998 Composites Location AK: Fairbanks AL: Montgomery AR: Little Rock AZ: Phoenix CA: Berkeley CA: Los Angeles CO: Denver CT: Hartford DE: Wilmington FL: Jacksonville FL: Miami HI: Honolulu IA: Iowa City ID: Boise ID: Idaho Falls IN: Indianapolis KS: Topeka ME: Augusta MI: Lansing MN: Welch MN: Welch MS: Jackson NC: Charlotte NC: Wilmington ND: Bismarck NH: Concord NJ: Trenton NM: Santa Fe NV: Las Vegas NY: Albany NY: New York City NY: Yaphank OH: Columbus OH: Paine sville OH: Ross OR: Portland PA: Harrisburg PA: Pittsburgh SC: Barnwell SC: Columbia aCi/m3 ±2u 0.11 0.16 0.17 0.33 0.14 0.46 0.53 0.75 0.12 0.18 0.16 0.49 0.53 0.96 -0.15 0.31 0.20 0.25 0.00 0.21 0.11 0.20 0.15 0.19 0.23 0.46 0.20 0.35 0.15 0.23 0.34 0.70 0.16 0.47 -0.49 0.56 0.15 0.58 0.27 0.42 0.041 0.058 0.18 0.40 0.18 0.63 -0.22 0.35 0.09 0.36 0.06 0.12 -0.101 0.083 -0.03 0.25 0.00 0.58 -0.09 0.22 0.25 0.29 0.08 0.15 -0.22 0.36 -0.05 0.55 0.92 0.70 0.27 0.66 0.09 0.16 0.11 0.45 0.36 0.37 0.19 0.25 239-240pu aCi/m3 ±2u 0.07 0.11 0.03 0.17 0.05 0.14 0.63 0.63 -0.034 0.048 0.02 0.15 0.19 0.55 0.03 0.14 -0.036 0.051 0.20 0.23 0.27 0.26 0.09 0.14 0.18 0.22 0.15 0.18 0.11 0.17 0.03 0.22 0.05 0.17 0.10 0.24 0.12 0.33 0.0 0.0 0.009 0.026 0.14 0.32 0.16 0.23 -0.01 0.15 0.12 0.19 0.08 0.12 0.05 0.10 0.014 0.095 0.19 0.43 0.00 0.20 -0.02 0.14 -0.024 0.033 0.07 0.20 0.17 0.32 0.14 0.30 0.11 0.25 0.13 0.18 0.30 0.24 0.24 0.21 0.19 0.22 234U aCi/m3 ±2u 9.1 1.4 23.2 2.9 24.1 2.9 47.5 6.2 6.5 1.2 20.2 3.2 32.7 4.2 8.6 1.3 16.3 2.3 17.5 2.5 16.3 1.9 4.62 0.99 12.0 1.8 18.4 2.4 12.2 1.9 24.5 3.5 16.4 2.5 19.7 2.7 15.9 2.3 11.3 2.0 11.2 1.9 19.7 2.9 19.2 3.0 16.0 2.0 17.5 2.7 12.3 1.4 13.2 1.9 18.2 2.3 63.4 7.5 19.3 2.8 11.8 1.7 4.75 0.89 15.9 1.9 12.1 1.9 30.8 4.6 7.2 1.2 10.0 1.6 19.0 2.4 10.4 1.1 26.4 3.1 235U aCi/m3 ±2u 0.92 0.48 1.28 0.66 2.9 1.0 4.3 1.9 0.74 0.45 1.78 0.96 2.2 1.1 0.53 0.36 1.47 0.73 1.53 0.74 1.25 0.51 0.72 0.44 0.85 0.51 1.61 0.70 0.91 0.55 2.5 1.1 1.30 0.72 2.49 0.97 1.02 0.60 1.05 0.68 1.04 0.60 2.4 1.0 2.7 1.2 0.93 0.49 0.85 0.68 0.58 0.30 0.79 0.47 1.05 0.55 5.4 2.1 1.54 0.84 0.84 0.47 0.46 0.30 1.58 0.58 1.49 0.67 2.0 1.2 1.13 0.50 1.14 0.55 2.15 0.80 0.87 0.31 1.83 0.78 238U aCi/m3 ±2u 7.6 1.3 20.7 2.7 21.3 2.7 35.9 5.3 4.9 1.0 16.0 2.8 29.2 3.9 8.1 1.3 15.4 2.2 18.1 2.5 13.9 1.7 3.10 0.80 13.3 1.9 15.4 2.1 10.0 1.6 24.7 3.5 17.4 2.6 18.3 2.6 15.9 2.3 13.9 2.3 10.4 1.8 17.5 2.7 22.2 3.2 15.1 1.9 16.0 2.5 11.2 1.3 12.9 1.9 16.0 2.2 44.7 6.1 17.3 2.7 10.1 1.6 4.71 0.88 15.0 1.8 13.0 1.9 27.1 4.3 4.79 0.94 9.0 1.5 19.5 2.4 11.9 1.2 23.5 2.9 Note: NA = No Analysis 13 ------- Table 9 (continued) Plutonium and Uranium in Airborne Particulates January - December 1998 Composites Location SD: Pierre TN: Knoxville TN: Nashville TN: Oak Ridge/Bethel TN: Oak Ridge/K25 TN: Oak Ridge/Melton TN: Oak Ridge/Y12 E TN:OakRidge/Y12W TX: Austin TX: El Paso UT: Salt Lake City VA: Lynchburg WA: Olympia WA: Spokane WI: Madison 238pu aCi/m3 ±2u 0.23 0.41 0.12 0.28 0.15 0.27 0.03 0.22 0.07 0.25 0.16 0.29 0.03 0.61 -0.10 0.46 -0.03 0.28 1.0 1.4 1.4 2.6 -0.13 0.21 0.16 0.18 0.13 0.24 0.31 0.43 239-240p aCi/m3 ±2u 0.08 0.17 18.9 3.0 0.07 0.23 0.12 0.14 0.26 0.19 0.10 0.15 -0.06 0.22 -0.042 0.059 0.07 0.15 0.84 0.75 0.6 1.1 0.013 0.073 -0.01 0.10 0.22 0.27 0.13 0.28 234U aCi/m3 ±2u 14.4 2.5 28.7 4.6 20.7 2.8 13.9 1.6 27.3 2.4 8.6 1.1 30.0 3.8 82.4 6.2 12.0 2.0 63.4 7.7 51.4 6.8 66.4 5.0 2.97 0.88 12.1 2.6 11.8 1.8 235U aCi/m3 ±2u 1.45 0.82 3.6 1.7 2.6 1.0 1.60 0.51 2.88 0.68 0.69 0.30 3.5 1.3 6.6 1.3 1.20 0.68 5.0 2.1 4.6 2.0 3.37 0.78 0.57 0.41 1.16 0.83 0.96 0.52 238U aCi/m3 ±2u 13.8 2.5 23.9 4.1 19.6 2.7 13.9 1.5 50.3 3.9 10.5 1.2 23.9 3.3 40.4 3.6 13.0 2.0 53.9 7.0 38.1 5.7 9.6 1.3 3.39 0.93 10.1 2.3 12.4 1.8 Note: NA = No Analysis 14 ------- 2. Water Program The ERAMS water program provides data on radionuclide concentrations in the nation's rivers, streams, and drinking water supplies. Surface Water Quarterly grab samples are taken downstream from nuclear facilities in as many as 58 stations. Surface water samples are analyzed for tritium quarterly and gamma-emitting radionuclides annually. Tritium is a primary potential radioactive pollutant from nuclear power plants and weapons production activities. 15 ------- Table 10 Tritium in Surface Water October - December 1998 Location AL: Decatur AL: Gordon AL: Scottsboro AR: Little Rock CA: Clay Station CA: Diablo Canyon CA: Eureka CO: Platteville CT: E. Haddam CT: Waterford FL: Crystal River FL: Ft. Pierce FL: Homestead GA: Baxley IA: Cedar Rapids ID: Buhl IL: Zion KS: Le Roy LA: New Orleans MA: Plymouth MD: Conowingo MD: Lusby ME: Wiscasset MI: Bridgman MI: Charlevoix MI: Monroe MI: S. Haven MN: Monticello MN: Red Wing MS: Port Gibson NC: Charlotte NC: Southport NV: Boulder City NY: Chelsea NY: Croton-On-Hudson NY: Oswego OH: Toledo OR: Bradwood PA: Danville PA: Philadelphia Source Tennessee River Chattahoochee River Tennessee River Arkansas River Folsom S. Canal Pacific Ocean Humboldt Bay South Platte River Connecticut River Long Island Sound Gulf Of Mexico Atlantic Ocean Biscayne Bay Altamaha River Cedar River Snake River Lake Michigan Neosho River Mississippi River Cape Cod Bay Susquehanna River Chesapeake Bay Montseway Bay Lake Michigan Lake Michigan Lake Erie Lake Michigan Mississippi River Mississippi River Mississippi River Catawba River Atlantic Ocean Colorado River Hudson River Hudson River Lake Ontario Lake Erie Columbia River Susquehanna River Schuylkill River - Belmont Date Collected 10/06/98 10/13/98 10/05/98 10/07/98 10/20/98 12/28/98 10/09/98 10/13/98 12/23/98 12/23/98 10/07/98 10/14/98 10/14/98 10/07/98 10/06/98 10/13/98 12/31/98 12/17/98 11/10/98 11/30/98 10/06/98 10/13/98 10/12/98 10/12/98 10/06/98 10/12/98 10/12/98 10/26/98 10/19/98 10/13/98 10/05/98 10/08/98 12/15/98 10/19/98 12/04/98 10/13/98 10/14/98 10/22/98 10/07/98 10/14/98 3H pCi/L ±2u 422 92 7 77 246 86 155 82 55 81 960 110 -5 76 58 82 -13 81 -21 77 83 79 19 78 29 81 13 76 67 78 56 79 -19 80 34 84 28 80 31 80 52 78 -7 76 28 78 78 83 123 81 53 81 26 81 241 88 -15 79 51 79 317 88 34 78 0 79 36 81 116 83 142 83 -18 76 2 80 60 78 11 77 16 ------- Table 10 (continued) Tritium in Surface Water October - December 1998 Location PA: Philadelphia PA: Philadelphia SC: Allendale SC: Broad River SC: Hartsville TN: Daisy TN: Kingston TX: Matagorda VA: Doswell VA: Newport News VT: Vernon WA: Northport WA: Richland WI: Two Creeks WI: Victory WV: Wheeling Source Schuylkill River - Queen Lane Delaware River - Baxter Savannah River Broad River Lake Robinson Tennessee River Clinch River Colorado River North Anna River James River Connecticut River Columbia River Columbia River Lake Michigan Mississippi River Ohio River Date Collected 10/14/98 10/14/98 10/09/98 10/29/98 10/13/98 10/27/98 10/15/98 10/06/98 10/07/98 10/13/98 10/29/98 11/23/98 10/12/98 10/08/98 10/13/98 10/06/98 3H pCi/L ±2u 62 80 -25 76 1280 120 136 85 640 100 170 86 35 78 2 76 3200 160 18 84 24 80 10 79 135 82 79 80 136 83 100 79 17 ------- Table 11 Surface Water Annual Gamma Analysis January - December 1998 Location AL: Decatur AL: Gordon AL: Scottsboro AR: Little Rock CA: Clay Station CA: Eureka CO: Platteville CT: E. Haddam CT: Waterford FL: Crystal River FL: Ft. Pierce GA: Baxley IA: Cedar Rapids ID: Buhl IL: Moline IL: Morris IL: Zion KS: Le Roy LA: New Orleans MA: Plymouth MD: Conowingo MD: Lusby ME: Wiscasset MI: Bridgman MI: Charlevoix MI: Monroe MI: S. Haven MN: Monticello MN: Red Wing MS: Port Gibson NC: Charlotte NC: Southport NV: Boulder City NY: Chelsea Source Tennessee River Chattahoochee River Tennessee River Arkansas River Folsom S. Canal Humboldt Bay South Platte River Connecticut River Long Island Sound Gulf Of Mexico Atlantic Ocean Altamaha River Cedar River Snake River Mississippi River Illinois River Lake Michigan Neosho River Mississippi River Cape Cod Bay Susquehanna River Chesapeake Bay Montseway Bay Lake Michigan Lake Michigan Lake Erie Lake Michigan Mississippi River Mississippi River Mississippi River Catawba River Atlantic Ocean Colorado River Hudson River Date Collected 04/08/98 04/13/98 04/07/98 06/30/98 04/02/98 04/21/98 04/10/98 04/14/98 06/22/98 06/24/98 04/07/98 04/28/98 04/14/98 04/06/98 04/09/98 04/03/98 04/29/98 06/30/98 06/29/98 04/30/98 04/06/98 04/14/98 04/21/98 04/08/98 04/06/98 04/04/98 04/06/98 04/06/98 04/27/98 04/20/98 04/07/98 04/22/98 04/23/98 04/30/98 04/13/98 Specific Gamma Activity Nuclide pCi/L ± 2u ND ND Pb212 2.8 5.1 ND ND ND K40 237 52 1131 9.4 8.0 ND K40 257 79 Pb212 4.7 6.8 T1208 2.3 4.2 ND ND T1208 3.2 2.7 ND ND ND ND ND ND K40 33 67 ND K40 77 71 K40 126 47 K40 68 41 ND T1208 2.8 2.7 ND Pb212 3.3 6.1 ND ND ND K40 200 75 ND K40 25 40 Pb212 6.0 8.2 Note: ND = Not Detected 18 ------- Table 11 (continued) Surface Water Annual Gamma Analysis January - December 1998 Location NY: Oswego OH: Toledo OR: Bradwood PA: Danville PA: Philadelphia SC: Allendale SC: Broad River SC: Hartsville TN: Daisy TN: Kingston TX: Matagorda VA: Doswell VA: Newport News VT: Vernon WA: Northport WA: Richland WI: Two Creeks WI: Victory WV: Wheeling Source Lake Ontario Lake Erie Columbia River Susquehanna River Schuylkill River - Belmont Schuylkill River - Queen Lane Delaware River - Baxter Savannah River Broad River Lake Robinson Tennessee River Clinch River Colorado River North Anna River James River Connecticut River Columbia River Columbia River Lake Michigan Mississippi River Ohio River Date Collected 06/15/98 05/27/98 04/23/98 04/15/98 04/22/98 04/22/98 04/22/98 05/09/98 05/05/98 04/06/98 04/09/98 04/07/98 04/15/98 04/01/98 04/24/98 04/14/98 04/29/98 04/06/98 04/14/98 04/13/98 04/01/98 Specific Gamma Activity Nuclide pCi/L ± 1u ND ND ND ND ND K40 51 60 T1208 3.6 3.4 K40 33 40 K40 36 32 T1208 3.1 4.2 ND ND K40 35 56 T1208 1.9 3.6 K40 27 33 ND K40 98 45 Pb212 8.6 7.7 K40 52 46 ND ND Pb212 6.1 6.9 ND K40 26 36 Note: ND = Not Detected 19 ------- Drinking Water This program monitors ambient radiation levels in drinking water in as many as 78 sites. These data serve to assess trends and anomalies in concentrations, and to compare with standards set forth in the EPA "National Interim Primary Drinking Water Regulations." These regulations provide for approval of supplies when the combined radium-226 and radium-228 levels do not exceed 5 pCi/L, when the gross alpha (excluding radon and uranium) levels do not exceed 15 pCi/L, when tritium levels do not exceed 20,000 pCi/L, when the strontium-90 levels do not exceed 8 pCi/L, and when the gross beta levels do not exceed 50 pCi/L. Grab samples are taken at the 78 sites which are either major population centers or selected nuclear facility environs. The analyses include (a) tritium on a quarterly basis; (b) gross alpha, gross beta, strontium-90, and gamma on annual composites; (c) radium-226 if the gross alpha exceeds 2 pCi/L and radium-228 if the radium-226 falls between 3 and 5 pCi/L; (d) iodine-131 on one quarterly sample per year for each station; and (e) an annual composite for plutonium-238, combined plutonium-239 and 240, and uranium-234, 235, and 238 for stations that demonstrate gross alpha levels greater than 2 pCi/L. 20 ------- Table 12 Tritium in Drinking Water October - December 1998 Location AK: Fairbanks AL: Dothan AL: Montgomery AL: Muscle Shoals AL: Scottsboro AR: Little Rock CA: Berkeley CA: Los Angeles CO: Denver CO: Platteville CT: Hartford DE: Dover FL: Miami FL: Tampa GA: Baxley HI: Honolulu IA: Cedar Rapids ID: Boise ID: Idaho Falls IL: Morris IL: W. Chicago KS: Topeka MD: Baltimore MD: Conowingo ME: Augusta MI: Detroit MI: Grand Rapids MN: Minneapolis MN: Red Wing MO: Jefferson City MS: Jackson MS: Port Gibson MT: Helena NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NM: Santa Fe NV: Las Vegas Date Collected 12/07/98 10/13/98 10/02/98 10/06/98 10/05/98 10/08/98 10/22/98 10/05/98 10/13/98 10/13/98 10/06/98 11/05/98 10/08/98 11/19/98 10/07/98 10/06/98 10/05/98 10/05/98 10/15/98 12/14/98 10/14/98 10/05/98 10/02/98 10/06/98 10/29/98 10/06/98 10/21/98 10/26/98 10/19/98 10/06/98 10/13/98 10/13/98 10/26/98 10/05/98 10/08/98 10/05/98 10/06/98 10/14/98 11/30/98 10/02/98 3H pCi/L ±2u 26 -59 -26 196 253 37 -11 260 63 -19 0 -61 -19 -2 -23 -25 20 -56 75 -43 0 -2 21 -2 -54 146 48 93 -14 26 7 -26 0 -23 0 121 -59 39 -31 -34 79 74 78 89 91 79 76 91 79 75 81 75 76 78 76 76 82 80 79 75 76 81 81 76 73 83 79 80 75 83 77 76 76 81 77 86 79 78 76 76 21 ------- Table 12 (continued) Tritium in Drinking Water October - December 1998 Location NY: Albany NY: Niagara Falls NY: Syracuse OH: Cincinnati OH: Columbus OH: E. Liverpool OH: Painesville OH: Toledo OK: Oklahoma City OR: Portland PA: Columbia PA: Harrisburg PA: Philadelphia - Belmont PA: Philadelphia - Baxter PA: Philadelphia - Queen Lane PA: Pittsburgh PC: Corozal RI: Providence SC: Barnwell SC: Columbia SC: Jenkinsville SC: Seneca TN: Chattanooga TN: Knoxville TN: Oak Ridge - Anderson Co #768 TN: Oak Ridge - Anderson Co #772 TN: Oak Ridge - Knox Co #371 TN: Oak Ridge - Roan Co. #360 TN: Oak Ridge - Roan Co. # 4442 TX: Austin VA: Doswell VA: Lynchburg WA: Richland WA: Seattle WI: Genoa WI: Madison Date Collected 10/05/98 11/04/98 12/07/98 11/10/98 12/30/98 10/16/98 10/05/98 10/14/98 11/04/98 10/08/98 10/06/98 10/08/98 10/14/98 10/14/98 10/14/98 10/16/98 10/13/98 10/05/98 10/07/98 10/07/98 11/06/98 10/28/98 10/06/98 10/05/98 12/14/98 12/14/98 12/14/98 12/29/98 12/29/98 10/22/98 10/05/98 10/06/98 10/12/98 10/05/98 10/13/98 10/05/98 3H pCi/L ±2u 65 112 47 66 24 -2 -52 114 -32 -26 -16 -21 21 -18 64 63 -4 -16 -30 145 -12 33 7 -7 80 3 3 26 650 -47 -11 -31 129 -44 -39 -67 84 81 81 81 80 76 79 82 76 75 81 76 77 76 79 79 76 81 75 83 75 78 77 82 79 78 78 77 100 74 82 80 82 80 74 79 22 ------- Table 13 Iodine-131 in Drinking Water January - December 1998 Location AK: Fairbanks AL: Dothan AL: Montgomery AL: Muscle Shoals AL: Scottsboro AR: Little Rock CA: Berkeley CA: Berkeley CA: Los Angeles CO: Denver CO: Denver CO: Platteville CO: Platteville CT: Hartford DE: Dover DE: Dover FL: Miami FL: Tampa GA: Baxley GA: Savannah HI: Honolulu IA: Cedar Rapids ID: Boise ID: Idaho Falls IL: Chicago IL: Morris KS: Topeka LA: New Orleans MD: Baltimore MD: Conowingo MD: Conowingo ME: Augusta ME: Augusta ME: Augusta MI: Detroit MI: Grand Rapids MN: Minneapolis MN: Minneapolis MN: Minneapolis MN: Red Wing MN: Red Wing Date Collected 09/10/98 01/06/98 01/08/98 01/14/98 01/13/98 04/07/98 02/26/98 07/23/98 01/05/98 04/14/98 07/15/98 04/14/98 10/13/98 07/02/98 01/14/98 04/14/98 10/08/98 03/09/98 04/14/98 02/12/98 01/05/98 04/07/98 04/06/98 07/16/98 04/01/98 01/06/98 04/02/98 01/05/98 01/05/98 01/13/98 04/14/98 01/27/98 04/15/98 07/08/98 01/06/98 04/17/98 01/28/98 08/10/98 10/26/98 01/28/98 04/20/98 Blj pCi/L ± 0.080 0.045 0.00 0.010 -0.021 0.02 -0.04 0.026 -0.027 0.08 0.008 0.010 0.02 0.028 0.13 0.03 -0.044 0.02 0.047 -0.10 0.000 -0.034 0.10 0.071 0.12 -0.05 0.055 0.039 -0.12 -0.22 0.11 0.07 -0.037 0.059 0.17 0.05 0.109 0.034 -0.07 0.032 -0.060 2u 0.074 0.079 0.12 0.068 0.076 0.10 0.10 0.098 0.072 0.10 0.090 0.099 0.17 0.076 0.20 0.10 0.088 0.11 0.092 0.10 0.078 0.091 0.11 0.090 0.10 0.26 0.085 0.075 0.11 0.25 0.10 0.10 0.090 0.078 0.24 0.15 0.085 0.067 0.10 0.093 0.093 23 ------- Table 13 (continued) Iodine-131 in Drinking Water January - December 1998 Location MO: Jefferson City MS: Jackson MS: Port Gibson MT: Helena NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NM: Santa Fe NV: Las Vegas NY: Albany NY: Niagara Falls NY: Niagara Falls NY: Niagara Falls NY: Syracuse NY: Syracuse OH: Cincinnati OH: Columbus OH: E. Liverpool OH: E. Liverpool OH: Painesville OH: Toledo OK: Oklahoma OK: Oklahoma City OR: Portland OR: Portland PA: Columbia PA: Columbia PA: Harrisburg PA: Harrisburg PA: Philadelphia - Queen PA: Philadelphia - Belmont PA: Philadelphia - Baxter PA: Pittsburgh PC: Corozal RI: Providence SC: Columbia SC: Jenkinsville SC: Jenkinsville SC: Seneca Date Collected 01/05/98 01/07/98 01/06/98 05/12/98 01/07/98 04/23/98 07/08/98 07/16/98 01/05/98 05/06/98 01/05/98 01/05/98 01/14/98 05/12/98 11/04/98 01/15/98 05/14/98 06/08/98 08/26/98 01/28/98 06/03/98 01/05/98 01/07/98 01/27/98 06/30/98 04/01/98 07/01/98 01/15/98 04/16/98 01/15/98 07/16/98 01/06/98 01/06/98 01/06/98 01/28/98 01/06/98 01/08/98 01/07/98 04/10/98 11/06/98 04/07/98 Blj pCi/L ± 0.081 0.03 0.02 0.11 -0.01 0.11 0.015 0.000 0.13 0.070 0.03 -0.011 -0.21 -0.039 -0.020 0.31 0.052 0.030 0.093 0.08 0.110 0.14 -0.02 0.041 0.07 0.017 0.066 -0.02 0.112 0.05 0.024 0.43 0.53 0.106 -0.01 0.24 -0.07 0.08 0.024 0.001 0.05 2u 0.073 0.12 0.23 0.21 0.13 0.10 0.092 0.078 0.11 0.083 0.15 0.078 0.25 0.070 0.095 0.15 0.085 0.074 0.095 0.10 0.081 0.11 0.12 0.085 0.10 0.093 0.083 0.22 0.079 0.19 0.099 0.26 0.23 0.097 0.14 0.24 0.11 0.21 0.081 0.079 0.11 24 ------- Table 13 (continued) Iodine-131 in Drinking Water January - December 1998 Location TN: Chattanooga TN: Knoxville TN: Oak Ridge - Roane Co #4442 TN: Oak Ridge - Roane Co #360 TN: Oak Ridge - Knox Co #371 TN: Oak Ridge - Anderson Co #768 TN: Oak Ridge - Anderson Co #772 TX: Austin VA: Doswell VA: Lynchburg WA: Richland WA: Seattle WI: Genoa WI: Madison Date Collected 01/07/98 01/05/98 03/24/98 03/24/98 03/25/98 03/25/98 03/25/98 02/12/98 05/26/98 01/05/98 04/06/98 01/06/98 07/14/98 04/10/98 Blj pCi/L ±2u 0.12 0.024 0.007 0.11 -0.009 0.009 0.021 0.08 0.064 0.03 0.004 -0.02 0.00 0.072 0.13 0.075 0.096 0.10 0.086 0.096 0.093 0.10 0.071 0.11 0.077 0.26 0.11 0.068 25 ------- Table 14 Drinking Water Alpha, Beta, and Sr-90 Concentrations January - December 1998 Composites Location AK: Fairbanks AL: Dothan AL: Montgomery AL: Muscle Shoals AL: Scottsboro AR: Little Rock CA: Berkeley CA: Los Angeles CO: Denver CO: Platteville CT: Hartford DC: Washington DE: Dover FL: Miami FL: Tampa GA: Baxley GA: Savannah HI: Honolulu IA: Cedar Rapids ID: Boise ID: Idaho Falls IL: Morris IL: W. Chicago KS: Topeka LA: New Orleans MA: Lawrence MD: Baltimore MD: Conowingo ME: Augusta MI: Detroit MI: Grand Rapids MN: Minneapolis MN: Red Wing MO: Jefferson City MS: Jackson MS: Port Gibson MT: Helena Total Solids (mg/L) 141.7 73.1 65.7 85.4 101.3 22.0 52.9 49.7 78.2 10.3 46.5 80.2 101.8 117.0 131.0 192.5 156.0 92.6 105.3 52.1 88.2 140.1 135.5 116.1 113.1 90.2 114.0 120.5 86.4 82.5 134.6 88.5 76.5 84.4 67.5 136.8 40.2 Gross Beta pCi/L ± 1u 5.09 0.81 2.4 1.0 2.61 0.64 2.53 0.69 2.70 0.65 1.75 0.58 0.95 0.50 5.4 2.7 2.61 0.63 2.1 2.1 2.09 0.57 4.4 1.2 4.9 1.2 4.2 1.0 4.2 1.1 3.05 0.86 3.01 0.80 3.13 0.81 3.39 0.71 1.06 0.50 2.92 0.92 22.5 3.0 12.5 1.8 8.0 1.5 3.83 0.98 3.15 0.68 3.22 0.77 4.27 0.89 2.72 0.66 1.96 0.60 2.67 0.68 2.99 0.65 9.7 1.4 7.3 1.3 3.85 0.77 5.4 1.5 2.41 0.60 Gross Alpha pCi/L ± 1u 0.04 0.85 0.8 1.2 0.79 0.89 -0.37 0.34 0.50 0.75 0.48 0.35 0.07 0.44 5.6 3.5 0.75 0.81 -0.2 1.0 0.03 0.37 0.4 1.3 1.3 2.4 0.9 1.5 0.5 1.3 1.1 2.0 1.3 1.6 0.9 1.1 1.2 1.1 0.66 0.60 0.8 1.0 12.6 5.9 16.1 5.0 1.2 2.0 0.6 1.4 -0.28 0.60 0.00 0.72 0.39 0.77 1.1 1.0 0.04 0.48 1.4 1.4 0.33 0.66 16.0 3.5 4.2 2.1 0.59 0.68 1.4 1.8 0.35 0.45 90Sr* pCi/L ± 1u * Results will be reported at a later date. 26 ------- Table 14 (continued) Drinking Water Alpha, Beta, and Sr-90 Concentrations January - December 1998 Composites Location NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NJ: Trenton NJ: Waretown NM: Santa Fe NV: Las Vegas NY: Albany NY: Niagara Falls NY: Syracuse OH: Cincinnati OH: Columbus OH: E. Liverpool OH: Painesville OH: Toledo OK: Oklahoma City OR: Portland PA: Columbia PA: Harrisburg PA: Philadelphia - Belmont PA: Philadelphia - Queen PA: Philadelphia - Baxter PA: Pittsburgh PC: Corozal RI: Providence SC: Barnwell SC: Columbia SC: Jenkinsville SC: Seneca TN: Chattanooga TN: Knoxville TN: Oak Ridge - Anderson Co #768 TN: Oak Ridge - Anderson Co #772 TN: Oak Ridge - Roane Co #4442 TN: Oak Ridge - Roane Co #360 Total Solids (mg/L) 44.9 84.3 103.3 133.3 82.5 90.2 68.4 121.9 106.7 91.8 122.9 138.5 126.4 98.5 115.6 57.1 86.1 59.6 21.6 128.3 31.0 112.5 121.4 83.9 127.5 82.6 65.2 24.8 55.5 84.9 30.6 79.6 107.7 105.6 51.4 85.0 44.2 Gross Beta pCi/L ± 1u 2.99 0.67 3.79 0.70 3.9 1.0 15.6 2.0 1.89 0.58 3.26 0.66 3.70 0.78 11.1 1.7 7.6 2.1 2.66 0.78 4.43 0.85 3.57 0.81 3.37 0.80 4.4 1.2 3.74 0.84 3.91 0.86 2.48 0.71 3.49 0.67 0.65 0.52 3.85 0.82 3.00 0.85 6.0 1.2 6.3 1.2 4.3 1.1 2.79 0.77 3.20 0.67 2.44 0.60 1.41 0.53 2.54 0.62 4.51 0.91 1.03 0.47 2.41 0.62 3.22 0.65 2.90 0.75 2.35 0.64 2.85 0.71 2.04 0.66 Gross Alpha pCi/L ± 1u 0.22 0.48 1.17 0.79 1.4 1.3 16.0 5.2 0.74 0.78 0.38 0.63 0.60 0.89 29.6 6.0 8.4 4.7 0.42 0.93 0.3 1.1 -0.4 1.3 0.68 0.94 0.3 1.4 1.5 1.2 0.65 0.68 1.53 0.95 -0.17 0.27 0.17 0.30 0.9 1.2 0.00 0.61 0.9 1.3 1.2 1.9 0.5 1.2 1.0 1.0 0.06 0.56 0.12 0.45 0.40 0.37 0.22 0.45 5.3 2.1 0.16 0.32 0.16 0.56 0.20 0.65 0.0 1.6 0.00 0.37 0.70 0.57 0.39 0.46 90Sr* pCi/L ± 1u '• Results will be reported at a later date. 27 ------- Table 14 (continued) Drinking Water Alpha, Beta, and Sr-90 Concentrations January - December 1998 Composites Location TN: Oak Ridge - Knox Co #371 TX: Austin VA: Doswell VA: Lynchburg WA: Richland WA: Seattle WI: Genoa WI: Madison Total Solids (mg/L) 66.2 102.1 133.2 85.6 60.9 25.6 85.5 85.3 Gross Beta pCi/L ± 1u 2.20 0.60 4.30 0.90 7.2 1.1 2.62 0.64 1.04 0.59 0.46 0.64 2.28 0.71 3.3 1.1 Gross Alpha pCi/L ± 1u 0.18 0.56 1.1 1.1 2.2 1.7 0.48 0.66 0.73 0.57 0.12 0.42 3.5 1.7 6.7 2.6 90Sr* pCi/L ± 1u * Results will be reported at a later date. 28 ------- Table 15 Drinking Water Radium and Gamma-Emitting Radionuclides January - December 1998 Composites Location AK: Fairbanks AL: Dothan AL: Montgomery AL: Muscle Shoals AL: Scottsboro AR: Little Rock CA: Berkeley CA: Los Angeles CO: Denver CO: Platteville CT: Hartford DC: Washington DE: Dover FL: Miami FL: Tampa GA: Baxley GA: Savannah HI: Honolulu IA: Cedar Rapids ID: Boise ID: Idaho Falls IL: Morris IL: W. Chicago KS: Topeka LA: New Orleans MA: Lawrence MD: Baltimore MD: Conowingo ME: Augusta MI: Detroit MI: Grand Rapids MN: Minneapolis MN: Red Wing MO: Jefferson City MS: Jackson 226Ra pCi/L ±2u NA NA NA NA NA NA NA 0.079 0.014 NA NA NA NA NA NA NA NA NA NA NA NA NA 1.58 0.18 2.64 0.31 NA NA NA NA NA NA NA NA NA NA 0.094 0.016 NA 228Ra pCi/L ±2u NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1.51 0.47 NA NA NA NA NA NA NA NA NA NA NA NA Specific Gamma Activity Nuclide pCi/L ± 2u K40 31 36 ND ND ND T1208 3.4 5.7 ND ND ND K40 23 37 ND ND ND ND ND Pb212 2.9 4.7 ND ND ND Bi214 7.7 8.5 ND Pb212 6.9 7.6 K40 23 41 K40 29 37 ND ND ND K40 9 13 Pb212 3.7 4.4 ND ND ND ND ND K40 33 58 K40 20 36 ND Note: ND = Not Detected NA = No Analysis 29 ------- Table 15 (continued) Drinking Water Radium and Gamma-Emitting Radionuclides January - December 1998 Composites Location MS: Port Gibson MT: Helena NC: Charlotte NC: Wilmington ND: Bismarck NE: Lincoln NH: Concord NJ: Trenton NJ: Waretown NM: Santa Fe NV: Las Vegas NY: Albany NY: Niagara Falls NY: Syracuse OH: Cincinnati OH: Columbus OH: E. Liverpool OH: Painesville OH: Toledo OK: Oklahoma City OR: Portland PA: Columbia PA: Harrisburg PA: Philadelphia - Belmont PA: Philadelphia - Queen PA: Philadelphia - Baxter PA: Pittsburgh PC: Corozal RI: Providence SC: Bamwell SC: Columbia SC: Jenkinsville SC: Seneca TN: Chattanooga TN: Knoxville 226Ra pCi/L ±2u NA NA NA NA NA 0.236 0.031 NA NA NA 0.149 0.021 0.149 0.022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.674 0.080 NA NA NA 228Ra pCi/L ±2u NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Specific Gamma Activity Nuclide pCi/L ± 2u K40 25 44 ND ND ND ND ND ND Bi212 43 59 K40 31 52 ND K40 21 27 ND ND ND ND ND ND K40 28 46 ND K40 25 38 ND ND ND ND ND ND ND ND K40 93 36 ND K40 32 43 ND ND ND ND T1208 3.8 5.2 Note: ND = Not Detected NA = No Analysis 30 ------- Table 15 (continued) Drinking Water Radium and Gamma-Emitting Radionuclides January - December 1998 Composites Location TN: Oak Ridge - Anderson Co #768 TN: Oak Ridge - Anderson Co #772 TN: Oak Ridge - Roane Co #4442 TN: Oak Ridge - Roane Co #360 TN: Oak Ridge - Knox Co #371 TX: Austin VA: Doswell VA: Lynchburg WA: Richland WA: Seattle WI: Genoa WI: Madison 226Ra pCi/L ± 1u NA NA NA NA NA NA 0.211 0.028 NA NA NA 0.497 0.059 0.424 0.052 228Ra pCi/L ± 1u NA NA NA NA NA NA NA NA NA NA NA NA Specific Gamma Activity Nuclide pCi/L ± 2u K40 51 24 T1208 3.1 4.3 Pb214 10.2 7.1 Bi214 19.0 7.0 Pb212 9.1 7.7 ND ND ND ND ND ND Bi212 41 46 K40 26 42 ND Note: ND = Not Detected NA = No Analysis 31 ------- 32 ------- (This page intentionally left blank) 33 ------- 3. Milk Program Pasteurized Milk Milk is a reliable indicator of the general population's intake of radionuclides since it is consumed fresh by a large segment of the population and can contain several of the biologically significant radionuclides that result from environmental releases from nuclear activities. A primary function of this program is to obtain reliable monitoring data relative to current radionuclide concentrations and determine any long-term trends. Monthly samples are collected at approximately 55 sampling sites. The samples are composited, according to production, from the major milk suppliers representing more than 80 percent of the milk consumed in a given population center. The samples are analyzed for gamma-emitting nuclides, including iodine-131, barium-140, cesium-137, and potassium-40. Total potassium concentrations in g/L are determined from potassium-40 activities assuming natural isotopic abundances. All samples collected in July are analyzed for strontium-90. Iodine-131, barium-140, cesium-137, and potassium-40 are determined by gamma spectral analysis. Strontium-90 is determined by beta counting a total strontium precipitate that has been chemically separated by ion exchange. 34 ------- Table 16 Radionuclides in Pasteurized Milk October 1998 Location AL: Montgomery AZ: Phoenix CA: Los Angeles CA: Sacramento CA: San Francisco CT: Hartford DE: Wilmington FL: Tampa GA: Atlanta HI: Honolulu IA: Des Moines IN: Indianapolis KS: Wichita KY: Louisville MA: Boston MD: Baltimore MI: Detroit MI: Grand Rapids MO: Jefferson City MO: Jefferson City* MS: Jackson NC: Charlotte NJ: Trenton NM: Albuquerque NV: Las Vegas NV: Las Vegas NY: Buffalo NY: Syracuse OH: Cincinnati OH: Cleveland OR: Portland PA: Philadelphia PA: Pittsburgh PC: Cristobal PR: San Juan SD: Rapid City TN: Chattanooga TN: Knoxville TN: Memphis Date Collected 10/09/98 10/21/98 10/06/98 10/19/98 10/13/98 10/05/98 10/26/98 10/05/98 10/26/98 10/06/98 10/05/98 10/05/98 10/14/98 10/06/98 10/08/98 10/02/98 10/06/98 10/07/98 10/20/98 10/20/98 10/07/98 10/15/98 10/19/98 10/19/98 10/08/98 10/19/98 10/09/98 10/05/98 10/19/98 10/05/98 10/06/98 10/05/98 10/05/98 10/16/98 10/09/98 10/29/98 10/01/98 10/01/98 10/08/98 K g/L ±2u 1.525 0.089 1.56 0.10 1.656 0.049 1.585 0.090 1.632 0.082 1.680 0.049 1.549 0.081 1.621 0.049 1.57 0.14 1.668 0.050 1.597 0.048 1.609 0.048 1.656 0.049 1.680 0.049 1.597 0.082 1.621 0.049 1.621 0.049 1.621 0.049 6.54 0.16 6.33 0.23 1.537 0.088 1.55 0.11 1.597 0.089 1.513 0.079 1.621 0.048 1.597 0.081 1.585 0.087 1.609 0.049 1.525 0.081 1.632 0.049 1.692 0.049 1.632 0.049 1.537 0.081 1.561 0.079 1.609 0.080 1.644 0.092 1.644 0.049 1.585 0.048 1.632 0.049 137Cs pCi/L ±2u ND ND ND ND ND ND ND 1.7 1.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 140Ba pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Blj pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Note: ND = Not Detected * Recount to verify concentration 35 ------- Table 16 (continued) Radionuclides in Pasteurized Milk October 1998 Location TX: Austin TX: Ft. Worth VT: Burlington WA: Seattle WA: Spokane WV: Charleston Date Collected 10/07/98 10/13/98 10/26/98 10/05/98 10/08/98 10/05/98 K g/L ±2u 1.573 0.089 1.644 0.050 1.64 0.11 1.644 0.049 1.62 0.10 1.513 0.081 137Cs pCi/L ±2u ND ND ND ND ND ND 140Ba pCi/L ±2u ND ND ND ND ND ND Blj pCi/L ±2u ND ND ND ND ND ND Note: ND = Not Detected 36 ------- Table 17 Radionuclides in Pasteurized Milk November 1998 Location AL: Montgomery AR: Little Rock CA: Los Angeles CA: Sacramento CA: San Francisco DE: Wilmington FL: Tampa GA: Atlanta HI: Honolulu IA: Des Moines IL: Chicago IN: Indianapolis KS: Wichita KY: Louisville MA: Boston MD: Baltimore MI: Detroit MI: Grand Rapids MO: Jefferson City NC: Charlotte NJ: Trenton NV: Las Vegas NY: Buffalo NY: Syracuse OH: Cincinnati OH: Cleveland OR: Portland PA: Philadelphia PA: Pittsburgh PR: San Juan SD: Rapid City TN: Chattanooga TN: Knoxville TN: Memphis TX: Austin VA: Norfolk VT: Burlington WA: Seattle WA: Spokane Date Collected 11/06/98 11/05/98 11/04/98 11/10/98 11/12/98 11/16/98 11/10/98 11/23/98 11/05/98 11/02/98 11/04/98 11/09/98 11/17/98 11/13/98 11/06/98 11/06/98 11/03/98 11/12/98 11/16/98 11/19/98 11/23/98 11/23/98 11/06/98 11/05/98 11/16/98 11/17/98 11/05/98 11/04/98 11/02/98 11/06/98 11/20/98 11/23/98 11/23/98 11/25/98 11/25/98 11/06/98 11/20/98 11/03/98 11/16/98 K g/L ±2u 1.597 0.089 1.61 0.12 1.56 0.10 1.561 0.089 1.57 0.14 .60 0.13 .54 0.13 .644 0.082 .656 0.049 .63 0.10 .63 0.12 .644 0.068 .56 0.12 .53 0.12 .644 0.092 .656 0.081 .55 0.10 .58 0.13 .60 0.14 .62 0.10 .47 0.13 .53 0.13 .621 0.081 .561 0.068 .53 0.11 .573 0.090 .64 0.13 .63 0.13 .621 0.089 .561 0.081 .597 0.080 .537 0.081 .561 0.092 .644 0.081 .50 0.15 .585 0.080 .680 0.094 .61 0.13 .55 0.13 137Cs pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 140Ba pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Blj pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Note: ND = Not Detected 37 ------- Table 17 (continued) Radionuclides in Pasteurized Milk November 1998 Location WV: Charleston Date Collected 11/04/98 K g/L ±2u 1.55 0.14 137Cs pCi/L ±2u ND 140Ba pCi/L ±2u ND Blj pCi/L ±2u ND Note: ND = Not Detected 38 ------- Table 18 Radionuclides in Pasteurized Milk December 1998 Location AL: Montgomery AR: Little Rock AZ: Phoenix CA: Los Angeles CA: Sacramento CA: San Francisco CT: Hartford DE: Wilmington FL: Tampa GA: Atlanta HI: Honolulu IA: Des Moines IN: Indianapolis KS: Wichita KY: Louisville MD: Baltimore ME: Portland MI: Detroit MI: Grand Rapids MO: Jefferson City MS: Jackson NC: Charlotte NM: Albuquerque NV: Las Vegas NY: Buffalo NY: Syracuse OH: Cincinnati OH: Cleveland OR: Portland PA: Philadelphia PA: Pittsburgh PC: Cristobal PR: San Juan SD: Rapid City TN: Chattanooga TN: Chattanooga TN: Knoxville TN: Memphis TX: Austin Date Collected 12/07/98 12/17/98 12/16/98 12/08/98 12/29/98 12/07/98 12/01/98 12/07/98 12/09/98 12/07/98 12/07/98 12/07/98 12/08/98 12/09/98 12/08/98 12/04/98 12/09/98 12/01/98 12/07/98 12/03/98 12/01/98 12/17/98 12/14/98 12/07/98 12/07/98 12/07/98 12/15/98 12/07/98 12/10/98 12/08/98 12/09/98 12/02/98 12/09/98 12/22/98 12/02/98 12/31/98 12/02/98 12/15/98 12/07/98 K g/L ±2u 1.680 0.068 1.501 0.088 1.621 0.080 1.537 0.090 1.621 0.091 .656 0.095 .644 0.081 .632 0.093 .668 0.068 .50 0.14 .58 0.15 .609 0.081 .56 0.12 .632 0.081 .644 0.089 .57 0.10 .740 0.096 .632 0.081 .573 0.091 .585 0.079 .513 0.092 .656 0.067 .609 0.081 .609 0.081 .66 0.10 .56 0.10 .68 0.10 .64 0.15 .68 0.11 .704 0.068 .549 0.089 .442 0.087 .644 0.090 .621 0.067 .644 0.094 .60 0.12 .525 0.089 .513 0.087 .501 0.078 137Cs pCi/L ±2u ND ND ND ND ND ND ND ND 2.8 2.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4.7 2.4 ND ND ND ND ND ND ND 140Ba pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Blj pCi/L ±2u ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Note: ND = Not Detected 39 ------- Table 18 (continued) Radionuclides in Pasteurized Milk December 1998 Location TX: Ft. Worth TX: Ft. Worth VA: Norfolk VT: Burlington WA: Seattle WA: Spokane WV: Charleston Date Collected 12/01/98 12/15/98 12/03/98 12/22/98 12/07/98 12/04/98 12/08/98 K g/L ±2u 1.549 0.080 1.609 0.080 1.585 0.080 1.62 0.12 1.48 0.10 1.54 0.12 1.609 0.066 137Cs pCi/L ±2u ND ND ND ND ND ND ND 140Ba pCi/L ±2u ND ND ND ND ND ND ND Blj pCi/L ±2u ND ND ND ND ND ND ND Note: ND = Not Detected 40 ------- (This page intentionally left blank) For More Information Environmental Radiation Data (ERD) is published quarterly by the U.S. Environmental Protection Agency's Office of Radiation and Indoor Air. Requests for information concerning the operation of ERAMS and the data that are generated should be directed as follows: For System Operations For Analytical Information and Data- Rhonda Sears John Griggs National Air and Radiation Environmental National Air and Radiation Environmental Laboratory Laboratory 540 South Morris Avenue 540 South Morris Avenue Montgomery, Alabama 36115-2601 Montgomery, Alabama 36115-2601 e-mail: sears.rhonda@epa.gov e-mail: griggs.john@epa.gov Requests for information concerning publication and distribution of ERD should be directed to: Charles M. Petko Office of the Director National Air and Radiation Environmental Laboratory 540 South Morris Avenue Montgomery, Alabama 36115-2601 e-mail: petko.charles@epa.gov Requests for information concerning policies of the Office of Radiation and Indoor Air should be directed to: William C. Conklin USEPA - ORIA Center for Emergency Preparedness and Clean Materials Radiation Protection Division (MC66085) 501 Third Street, N.W. Washington, DC 20001 e-mail: conklin.craig@epa.gov *** ------- (This page intentionally left blank) ------- Contents Page List of Tables v Preface vii Acknowledgments ix Data Reporting Conventions xi 1. Air Program 1 Airborne Particulates and Precipitation 1 Plutonium and Uranium in Airborne Particulates and Precipitation 12 2. Water Program 15 Surface Water 15 Drinking Water 21 3. Milk Program 33 Pasteurized Milk 33 in ------- (This page intentionally left blank) ------- List of Tables Table Page 1 Reporting Units and Minimum Detectable Concentrations xiii 2 Gross Beta in Airborne Particulates: October 1998 2 3 Gross Beta in Airborne Particulates: November 1998 4 4 Gross Beta in Airborne Particulates: December 1998 6 5 Gross Beta and Specific Gamma in Precipitation: October 1998 8 6 Gross Beta and Specific Gamma in Precipitation: November 1998 9 7 Gross Beta and Specific Gamma in Precipitation: December 1998 10 8 Tritium in Precipitation: October - December 1998 11 9 Plutonium and Uranium in Airborne Particulates: January - December 1998 Composites 13 10 Tritium in Surface Water: October - December 1998 16 11 Surface Water Annual Gamma Analysis: January -December 1998 18 12 Tritium in Drinking Water: October - December 1998 21 13 Iodine-131 in Drinking Water: January - December 1998 23 14 Alpha, Beta, and Sr-90 Concentrations in Drinking Water: January - December 1998 Composites 26 15 Radium-226, -228 and Gamma-Emitting Radionuclides in Drinking Water: January - December 1998 Composites 29 16 Radionuclides in Pasteurized Milk: October 1998 34 17 Radionuclides in Pasteurized Milk: November 1998 36 18 Radionuclides in Pasteurized Milk: December 1998 36 ------- (This page intentionally left blank) ------- |