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Page ,f 2 SUMMARY OF RADON TEST RESULTS OF THE HOUSEHOLD TESTING PROGRAM (*) Second Phase Cities and Towns (**) (TestinQ Conducted February - Anril. 1938) - -- .,., - - - .luly 19o0 Tawn Andover 13ranford Bridgeport Ilurl ington Chaplin P.aston Groton Guilford Iladdam Kent M-.ld Letown Plonroe tlew llartford 14. Stonington Preston RidgeEield Scotland Stonington Voluntown Waterlord Watertown W Cndt-iam Woodbridge Woodbury------J Overall Lowest Livable Area (i.e., basement) pCi 1 1 of Iiomes Geometric >4 > 20 /ITests Min. Max. Mean*** pCI/1 pCi/I 83 0.2 19.0 1.7 20% 0% 96 0.0 85.0 2.3 39% 1.2% 78 0.1 26.0 2.2 27% 1% 83 0.7 21.0 1.9 11% 1% 86 0.2 12.0 1.8 16% 0% 92 0.2 12.0 2.5 24% 0% 96 0.0 18.0 1.8 13% 0% 93 0.3 483.0 2.4 27% 5% 96 0.2 47.0 3.2 38% 1% 62 0.2 17.0 2.4 29% 0% 92 0.2 21.0 1.1. 11% 1% 91 0.2 21.0 1.4 9% 1% 84 0.2 11.0 1.3 11% 0% 97 0.1 45.0 1.8 27% 2% 95 0.0 12.0 1.4 12% (1% 87 0.3 19.0 1.6 9% 0% 19 0.3 19.0 2.1 42% 0% 93 0.2 29.0 1.7 14% 2% 78 0.2 72.0 2.4 29% 4% 98 • 0.0 8.4 1.4 5% 0% 84 0.3 10.0 1.8 11% 0% 99 0.2 14.0 1.9 17% 0% 97 0.4 32.0 2.8 35% 2% -----94 0.3 33.0 2.5 31% 4% ------------------------------------------------- 2066 0.0 483.0 1.9 20% 2% Lowest Lived-In Area (i.e., first floor) pCi 1 ir of Homes _ Geometric > > 20 IfTests Min. Max. t•lean*** Cp i/1 Cp i/1 89 0.0 15.0 1.1 11% 0% 97 0.0 32.0 1.1 17% 5% 79 0.0 11.0 0.9 4% 0% 91 0.0 14.0 1.3 6% 0% 85 0.1 8.2 1.3 8% 0% 96 0.0 9.1 1.5 8% 0% 99 0.0 8.0 0.9 6% 0% 93 0.2 112.0 1.7 18% 1% 98 0.5 43.0 2.2 22% 1% 62 0.1 9.6 1.1 13% 0% 91 0.1 21.0 0.6 6% 1% 91 0.2 7.3 0.8 3% 0% 85 0.2 21.0 1.1 8% 1% 98 0.0 39.0 1.2 12% 1% 96 0.0 7.6 0.7 3% 0% 89 0.1 11.0 0.9 5% 0% 20 0.2 9.8 1.0 5% 0% 98 0.1 16.0 1.1 9% 0% 79 0.0 32.0 1.9 20% 4% 99 0.1 6.6 1.0 6% 0% 88 0.3 4.6 1.2 3% 0% 73 0.3 26.0 1.4 8% 1% 98 0.3 32.0 1.7 11% 1% 94 -0.2 25.0 1.7 20% 2% -------------------------------------------- 2096 0.0 112.0 1.2 10% 1% * 48-iw ur samples using charcoal devices. *** Sampling emphasized higher radon potential areas, thus overall state radon level is expected to be lower. E3ec,ause radon data are log-normally distributed, the appropriate descriptive statistic for the average Is the geoQetric mean. t'VT"sszoZ

Page I T 2 STATE OF CONNECT-ICUT ,nEPARTl19ENT OF HEALTH SERVICES PREVENTARLE DISEASES DIVISION SHMI'lARY (DF RAI7ON TEST RESMS OF llilu HUUtiI:HULiD TE5T11VG PRf1lsKAM (") flverall _ Results for First & Second Phase Municipali ties (**).- July 1988 Lowest Livable Area Lowest Lived-in Area (i.e., basement) (i.e., first floor) pCi 1 of Homes pci 1 of Homes Geometric > 4 > 20 Geometric ~-> 20 !/Tests Min. Max. Mean*** pCi/1 Cp i/1 ftests Min. Max. Mean*** Cp i/1 Cp i/1 TOTAL 3378 0.0 483.0 2.1 21X 2% 3409 0.0 112.0 1.3 10% 0.6% ------------- ---------- - ------------------ -- - --- - ---------- - ------------ First Phase Towns (**) (Testing Conducted December, 1987 - February, 1988) Updated Results - June 1988 To «i Lowest Livable Area Lowest Lived-in Area (i.e., basement) (i.e., first floor) pCi 1 of Homes pCi 1 of Homes Geometric > 4 >20 Geometric > 4 > 20 #Tests Min. Max. Mean*** pCi/1 pCi/1 l/Tests Min. Max. Mean*** pCi/1 pCi/1 Ansonia 93 0.5 58.0 3.9 43% 9% 95 0.3 19.5 1.7 14% 0% Bethlehem 89 0.3 22.7 2.2 26% 1% 89 0.3 9.0 1.6 10% 0% East Hampton 91 0.4 19.1 2.5 23% 0% 91 0.3 13.6 1.6 6% 0% Glastonbury 103 • 0.5 37.0 2.1 23% 4% 103 0.0 17.3 1.1 11% 0% Goshen 91 0.1 75.0 2.1 22% 2% 91 0.2 25.5 ,1.5 11% 1% Madison 99 0.3 36.3 3.2 37% 5% 99 0.2 34.7 1.5 14% 1% Hansfield 93 0.6 10.0 2.2 10% 0% 94 0.5 4.9 1.6 3% 0% t9ontville 99 0.7 25.3 2.4 15% 1% 98 0.7. 10.4 1.9 10% 0% Pomfret 81 0.8 13.8 2.2 6% 0% 81 0.7 7.3 1.7 3% 0% Portland 97 0.4 30.4 1.7 13% 2% 97 0.4 12.7 1.2 3% 0% Torrington 93 0.8 37.8 2.2 18% 1% 93 0.5 10.7 1.4 10% 0% Trumbull 88 0.8 15.2 2.5 16% 0% 88 0.5 12.8 1.5 6% 0% Weston 96 0.9 98.4 3.3 35% 4% 97 0.8 35.2 2.3 19% 1% Westport 97 0.6 49.0 3.1 30% 3% 95 0.6 36.5 2.0 16% 2% -^ -------------------------------------------- ----------------------------------------- Ov 1 1312 era i. 0.1 98.4 2.5 23% 2% 1313 0.0 36.5 1.6 10% 0.4- SL t9tFss'z®z