NYS DOH Measured Basement, First Floor Screening Radon Levels (October 2017)
County Test
Location
Homes
Tested
Radon Screening Values (pCi/L) Number of Homes
Average GEO Mean GEO SD MAXIMUM <4 pCi/L ≥4 & <20 pCi/L >=20 pCi/L
ALBANY Basement 2,788 5.33 2.00 3.32 394.60 2,097 577 114
ALBANY 1st Floor 1,134 2.44 0.88 3.70 89.80 998 114 22
ALLEGANY Basement 536 10.71 4.66 3.80 216.60 242 220 74
ALLEGANY 1st Floor 239 3.44 1.43 3.80 56.70 186 46 7
BROOME Basement 3,334 5.90 2.87 3.27 210.70 2,075 1,068 191
BROOME 1st Floor 958 3.08 1.43 3.39 72.90 762 181 15
CATTARAUGUS Basement 1,478 9.44 4.20 3.36 522.10 732 581 165
CATTARAUGUS 1st Floor 500 4.04 1.75 3.64 174.40 360 133 7
CAYUGA Basement 1,279 4.65 2.81 2.63 145.60 862 381 36
CAYUGA 1st Floor 1,119 2.35 1.23 3.07 91.20 957 154 8
CHAUTAUQUA Basement 1,025 6.07 2.75 3.50 141.00 658 310 57
CHAUTAUQUA 1st Floor 259 2.83 1.10 3.77 58.70 214 40 5
CHEMUNG Basement 2,062 12.41 7.01 3.23 118.30 609 1,038 415
CHEMUNG 1st Floor 471 6.41 2.56 4.19 224.90 280 164 27
CHENANGO Basement 677 9.69 4.91 3.31 105.50 284 308 85
CHENANGO 1st Floor 456 3.69 1.44 4.33 75.20 343 102 11
CLINTON Basement 262 2.09 1.25 2.76 23.20 232 29 1
CLINTON 1st Floor 103 1.18 0.61 3.03 11.60 98 5 0
COLUMBIA Basement 682 6.98 3.76 3.15 298.00 330 310 42
COLUMBIA 1st Floor 342 3.05 1.55 3.56 24.10 258 82 2
CORTLAND Basement 1,746 14.63 8.45 3.25 125.30 413 928 405
CORTLAND 1st Floor 781 6.60 3.32 3.73 76.70 404 325 52
DELAWARE Basement 741 8.34 4.01 3.41 180.40 360 314 67
DELAWARE 1st Floor 681 3.75 1.71 3.55 62.60 503 156 22
DUTCHESS Basement 3,269 6.80 3.96 3.01 135.20 1,522 1,571 176
DUTCHESS 1st Floor 1,153 3.11 1.63 3.43 61.10 880 264 9
ERIE Basement 7,507 5.21 1.63 3.92 391.10 5,830 1,269 408
ERIE 1st Floor 1,421 3.42 1.05 4.05 144.70 1,177 193 51
ESSEX Basement 168 1.60 1.04 2.44 26.30 159 8 1
ESSEX 1st Floor 59 0.74 0.49 2.48 4.10 58 1 0
FRANKLIN Basement 113 3.46 1.01 3.04 133.70 107 4 2
FRANKLIN 1st Floor 48 3.23 0.52 4.45 46.80 44 1 3
FULTON Basement 156 2.64 1.48 2.80 30.10 133 20 3
FULTON 1st Floor 48 1.11 0.57 3.09 10.90 46 2 0
GENESEE Basement 763 7.48 3.23 3.01 322.70 493 221 49
GENESEE 1st Floor 261 4.71 1.33 4.22 170.40 209 39 13
GREENE Basement 361 6.93 3.00 3.37 245.20 220 122 19
GREENE 1st Floor 423 2.32 0.74 3.53 205.40 389 29 5
HAMILTON Basement 23 1.99 1.15 2.82 12.70 20 3 0
HAMILTON 1st Floor 3 0.30 0.29 1.42 0.40 3 0 0
HERKIMER Basement 311 6.40 3.54 2.97 74.10 173 119 19
HERKIMER 1st Floor 163 2.81 1.34 3.63 31.80 123 39 1
JEFFERSON Basement 335 5.45 2.14 3.45 336.30 235 88 12
JEFFERSON 1st Floor 166 1.75 0.78 3.28 35.00 151 13 2
LEWIS Basement 113 4.56 2.35 2.83 107.60 81 29 3
LEWIS 1st Floor 54 2.44 1.31 3.41 10.80 43 11 0
LIVINGSTON Basement 954 8.16 3.55 3.33 157.60 540 332 82
LIVINGSTON 1st Floor 1,337 4.66 1.85 3.66 196.80 985 294 58
MADISON Basement 1,194 6.17 3.24 3.01 203.60 693 439 62
MADISON 1st Floor 514 2.62 1.30 3.21 79.00 434 76 4
MONROE Basement 2,852 3.66 1.76 2.78 405.60 2,363 422 67
MONROE 1st Floor 4,764 0.80 0.41 2.75 259.50 4,697 58 9
MONTGOMERY Basement 250 4.06 2.25 3.15 44.00 167 78 5
MONTGOMERY 1st Floor 322 0.89 0.44 2.88 18.60 308 14 0
NASSAU Basement 785 1.49 1.03 2.40 13.90 739 46 0
NASSAU 1st Floor 240 0.75 0.46 2.69 12.60 237 3 0
NEW YORK Basement 1,472 1.73 0.93 2.92 49.50 1,361 99 12
NEW YORK 1st Floor 390 1.25 0.41 3.15 146.70 377 10 3
NIAGARA Basement 1,513 1.89 1.11 2.67 65.40 1,370 136 7
NIAGARA 1st Floor 286 0.92 0.50 2.86 13.00 280 6 0
ONEIDA Basement 2,261 6.17 2.97 3.26 601.40 1,386 746 129
ONEIDA 1st Floor 814 3.28 1.28 4.00 83.10 637 157 20
ONONDAGA Basement 9,446 8.09 3.59 3.60 348.80 5,017 3,600 829
ONONDAGA 1st Floor 2,248 4.68 1.72 4.16 233.60 1,615 540 93
ONTARIO Basement 680 5.41 3.01 2.86 125.00 428 223 29
ONTARIO 1st Floor 594 1.29 0.50 3.55 24.90 550 40 4
ORANGE Basement 2,463 5.48 2.89 3.02 198.80 1,514 857 92
ORANGE 1st Floor 1,043 2.74 1.33 3.22 128.70 863 171 9
ORLEANS Basement 519 3.59 1.91 2.77 86.40 412 96 11
ORLEANS 1st Floor 79 1.37 0.76 2.92 16.40 73 6 0
OSWEGO Basement 287 2.78 1.49 2.78 56.30 247 35 5
OSWEGO 1st Floor 124 1.69 0.54 3.49 42.80 118 3 3
OTSEGO Basement 1,460 8.92 4.48 3.37 350.80 638 679 143
OTSEGO 1st Floor 1,955 3.86 1.97 3.38 87.60 1,398 521 36
OUT OF STATE Basement 198 3.91 2.20 3.03 52.10 138 57 3
OUT OF STATE 1st Floor 60 2.39 1.19 3.66 19.50 51 9 0
PUTNAM Basement 1,048 4.73 2.66 2.88 235.20 683 338 27
PUTNAM 1st Floor 379 3.32 1.50 3.13 254.70 315 59 5
RENSSELAER Basement 2,225 6.95 3.44 3.44 134.70 1,196 865 164
RENSSELAER 1st Floor 1,512 1.92 0.72 3.87 43.00 1,339 157 16
ROCKLAND Basement 2,746 2.54 1.55 2.60 123.70 2,338 385 23
ROCKLAND 1st Floor 834 1.33 0.79 2.68 23.30 793 37 4
SARATOGA Basement 1,613 4.21 2.27 2.95 142.20 1,160 416 37
SARATOGA 1st Floor 515 2.15 1.05 3.20 63.10 454 58 3
SCHENECTADY Basement 1,243 4.76 2.05 3.06 186.40 954 244 45
SCHENECTADY 1st Floor 554 2.17 0.71 3.64 127.00 499 50 5
SCHOHARIE Basement 352 6.20 3.16 3.17 94.00 207 120 25
SCHOHARIE 1st Floor 213 2.19 1.03 3.19 58.90 187 25 1
SCHUYLER Basement 204 6.21 3.46 2.92 80.40 116 78 10
SCHUYLER 1st Floor 146 2.09 1.06 3.20 18.60 127 19 0
SENECA Basement 216 3.11 1.90 2.77 25.50 173 42 1
SENECA 1st Floor 84 1.30 0.80 2.90 6.80 79 5 0
ST.LAWRENCE Basement 346 2.92 1.55 2.81 66.50 297 41 8
ST.LAWRENCE 1st Floor 182 1.11 0.64 2.77 12.40 175 7 0
STEUBEN Basement 1,511 11.78 6.18 3.38 415.20 509 752 250
STEUBEN 1st Floor 785 4.51 1.89 3.95 97.60 547 212 26
SUFFOLK Basement 527 1.81 1.17 2.53 42.60 489 35 3
SUFFOLK 1st Floor 212 0.93 0.54 2.75 10.80 207 5 0
SULLIVAN Basement 239 3.76 2.02 3.07 46.00 174 59 6
SULLIVAN 1st Floor 76 1.99 1.07 2.96 23.30 68 7 1
TIOGA Basement 972 10.84 4.99 3.62 303.50 413 428 131
TIOGA 1st Floor 349 4.88 2.18 3.87 67.50 224 111 14
TOMPKINS Basement 1,794 5.05 2.87 2.94 206.80 1,104 633 57
TOMPKINS 1st Floor 860 2.31 1.19 3.21 56.10 736 118 6
ULSTER Basement 1,440 5.14 2.89 2.79 175.70 915 479 46
ULSTER 1st Floor 670 2.35 1.14 3.15 109.50 585 80 5
UNKNOWN Basement 26 4.63 2.15 3.53 34.50 18 7 1
UNKNOWN 1st Floor 20 2.33 1.07 3.37 17.10 17 3 0
WARREN Basement 289 3.37 1.70 2.83 90.10 240 43 6
WARREN 1st Floor 86 2.39 0.87 3.57 44.80 77 6 3
WASHINGTON Basement 595 6.41 3.29 3.24 121.90 340 219 36
WASHINGTON 1st Floor 378 2.76 1.18 3.77 58.00 310 62 6
WAYNE Basement 611 4.61 2.54 2.84 63.60 439 147 25
WAYNE 1st Floor 678 1.23 0.52 3.76 21.30 643 34 1
WESTCHESTER Basement 2,556 2.86 1.74 2.65 95.40 2,112 418 26
WESTCHESTER 1st Floor 729 1.45 0.82 2.75 77.70 692 35 2
WYOMING Basement 542 9.83 4.35 3.67 226.20 259 220 63
WYOMING 1st Floor 236 3.35 1.42 3.73 41.60 186 44 6
YATES Basement 219 5.64 3.28 2.86 69.00 125 83 11
YATES 1st Floor 121 2.62 1.45 2.90 29.80 103 17 1