Dichlorodifluoromethane
California Water Service - Livermore
Dichlorodifluoromethane (Freon-12) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.682 ppb | 72 | 36 | ND - 5.11 ppb |
2015 | 0.978 ppb | 56 | 46 | ND - 4.38 ppb |
2016 | 0.762 ppb | 60 | 38 | ND - 1.90 ppb |
2017 | 0.823 ppb | 43 | 35 | ND - 1.94 ppb |
2018 | 0.372 ppb | 77 | 34 | ND - 1.50 ppb |
2019 | 0.522 ppb | 67 | 40 | ND - 2.40 ppb |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-22 | 5701-010-1405 | ND |
2014-01-22 | 5701-024-1415 | ND |
2014-01-22 | 5701-025-1410 | ND |
2014-01-23 | 5701-006-1303 | ND |
2014-01-23 | 5701-007-1020 | 0.540 ppb |
2014-02-25 | 5701-010-1032 | ND |
2014-02-25 | 5701-024-1047 | 0.530 ppb |
2014-02-25 | 5701-025-1045 | ND |
2014-03-16 | 5701-010-1352 | 0.650 ppb |
2014-03-16 | 5701-024-1400 | 0.650 ppb |
2014-03-16 | 5701-025-1405 | 0.510 ppb |
2014-04-21 | 5701-008-1025 | 0.920 ppb |
2014-04-21 | 5701-022-1035 | ND |
2014-04-21 | 5701-023-1040 | ND |
2014-04-23 | 5701-010-1125 | 0.600 ppb |
2014-04-23 | 5701-024-1120 | 0.600 ppb |
2014-04-23 | 5701-025-1123 | 0.580 ppb |
2014-04-24 | 5701-006-1625 | ND |
2014-04-24 | 5701-021-1420 | 5.11 ppb |
2014-05-13 | 5701-010-1343 | ND |
2014-05-13 | 5701-024-1344 | ND |
2014-05-13 | 5701-025-1336 | 0.520 ppb |
2014-05-27 | 5701-008-1010 | 1.11 ppb |
2014-05-27 | 5701-022-1017 | ND |
2014-05-27 | 5701-023-1025 | ND |
2014-06-10 | 5701-010-1117 | ND |
2014-06-10 | 5701-024-1138 | ND |
2014-06-10 | 5701-025-1133 | ND |
2014-06-12 | 5701-008-1231 | 0.760 ppb |
2014-06-12 | 5701-022-1248 | ND |
2014-06-12 | 5701-023-1239 | ND |
2014-07-10 | 5701-008-0959 | 1.06 ppb |
2014-07-10 | 5701-010-1127 | ND |
2014-07-10 | 5701-022-1016 | ND |
2014-07-10 | 5701-023-1008 | 0.840 ppb |
2014-07-10 | 5701-024-1141 | ND |
2014-07-10 | 5701-025-1132 | ND |
2014-07-23 | 5701-006-1545 | ND |
2014-07-23 | 5701-021-1526 | 2.93 ppb |
2014-08-06 | 5701-008-1042 | 1.26 ppb |
2014-08-06 | 9590-010-1120 | ND |
2014-08-06 | 5701-022-1055 | ND |
2014-08-06 | 5701-023-1049 | 1.15 ppb |
2014-08-06 | 9590-024-1135 | ND |
2014-08-06 | 9590-025-1127 | ND |
2014-09-11 | 5701-008-1131 | 1.62 ppb |
2014-09-11 | 5701-010-1545 | ND |
2014-09-11 | 5701-022-1139 | 1.35 ppb |
2014-09-11 | 5701-023-1135 | 1.55 ppb |
2014-09-11 | 5701-024-1554 | ND |
2014-09-11 | 5701-025-1550 | 0.510 ppb |
2014-10-15 | 9590-008-1035 | 1.10 ppb |
2014-10-15 | 5701-010-0949 | 0.990 ppb |
2014-10-15 | 9590-022-1044 | 1.000 ppb |
2014-10-15 | 9590-023-1039 | 1.10 ppb |
2014-10-15 | 5701-024-0956 | 1.14 ppb |
2014-10-15 | 5701-025-1000 | 1.19 ppb |
2014-10-27 | 5701-021-1418 | 4.24 ppb |
2014-11-05 | 5701-008-1011 | 1.12 ppb |
2014-11-05 | 5701-010-1242 | ND |
2014-11-05 | 5701-022-1000 | 1.46 ppb |
2014-11-05 | 5701-023-1005 | 1.40 ppb |
2014-11-05 | 5701-024-1251 | ND |
2014-11-05 | 5701-025-1257 | ND |
2014-12-10 | 5701-010-1220 | ND |
2014-12-10 | 5701-024-1229 | ND |
2014-12-10 | 5701-025-1224 | ND |
2014-12-15 | 5701-006-1650 | ND |
2014-12-17 | 5701-008-1208 | 1.56 ppb |
2014-12-17 | 5701-022-1212 | 1.74 ppb |
2014-12-17 | 5701-023-1218 | 1.53 ppb |
2014-12-18 | 9590-009-1355 | 4.20 ppb |
2015-01-13 | 5701-008-1425 | 0.860 ppb |
2015-01-13 | 5701-022-1400 | 1.27 ppb |
2015-01-13 | 5701-023-1405 | 0.990 ppb |
2015-01-21 | 5701-010-1320 | ND |
2015-01-21 | 5701-024-1327 | 0.580 ppb |
2015-01-21 | 5701-025-1328 | 0.600 ppb |
2015-01-27 | 5701-006-1602 | ND |
2015-01-27 | 5701-021-1426 | 3.72 ppb |
2015-02-18 | 5701-008-1650 | 1.31 ppb |
2015-02-18 | 5701-022-1653 | 1.11 ppb |
2015-02-18 | 5701-023-1652 | 1.04 ppb |
2015-02-24 | 5701-010-1324 | ND |
2015-02-24 | 5701-024-1350 | ND |
2015-02-24 | 5701-025-1345 | 0.510 ppb |
2015-03-16 | 5701-008-1523 | 1.06 ppb |
2015-03-16 | 5701-010-1600 | 0.520 ppb |
2015-03-16 | 5701-022-1530 | 1.03 ppb |
2015-03-16 | 5701-023-1535 | 1.07 ppb |
2015-03-16 | 5701-024-1611 | ND |
2015-03-16 | 5701-025-1605 | ND |
2015-04-14 | 5701-008-1040 | 1.11 ppb |
2015-04-14 | 5701-010-1420 | 0.520 ppb |
2015-04-14 | 5701-022-1112 | 1.26 ppb |
2015-04-14 | 5701-023-1107 | 1.17 ppb |
2015-04-14 | 5701-024-1437 | 0.710 ppb |
2015-04-14 | 5701-025-1429 | 0.650 ppb |
2015-04-27 | 5701-006-1341 | ND |
2015-05-12 | 9590-008-1215 | 0.800 ppb |
2015-05-12 | 9590-022-1226 | 0.900 ppb |
2015-05-12 | 9590-023-1221 | 0.780 ppb |
2015-05-18 | 5701-009-1105 | 4.38 ppb |
2015-06-08 | 5701-008-1100 | 1.03 ppb |
2015-06-08 | 5701-022-1110 | 1.14 ppb |
2015-06-08 | 5701-023-1106 | 0.980 ppb |
2015-07-07 | 5701-008-1248 | 1.28 ppb |
2015-07-07 | 5701-022-1259 | 1.43 ppb |
2015-07-07 | 5701-023-1303 | 1.35 ppb |
2015-07-21 | 5701-006-1050 | ND |
2015-08-10 | 5701-008-1259 | 0.910 ppb |
2015-08-10 | 5701-022-1308 | 1.16 ppb |
2015-08-10 | 5701-023-1304 | 1.05 ppb |
2015-09-09 | 5701-008-1205 | 1.36 ppb |
2015-09-09 | 5701-022-1216 | 1.28 ppb |
2015-09-09 | 5701-023-1213 | 1.22 ppb |
2015-10-14 | 5701-008-0930 | 0.830 ppb |
2015-10-14 | 5701-022-0950 | 1.01 ppb |
2015-10-14 | 5701-023-0944 | 0.960 ppb |
2015-10-19 | 5701-006-1115 | ND |
2015-10-19 | 5701-021-1016 | 1.79 ppb |
2015-11-09 | 5701-008-1142 | 1.33 ppb |
2015-11-09 | 5701-022-1151 | 1.15 ppb |
2015-11-09 | 5701-023-1150 | 1.20 ppb |
2015-12-09 | 5701-014-1120 | ND |
2015-12-15 | 5701-008-1535 | 1.36 ppb |
2015-12-15 | 5701-022-1515 | 1.56 ppb |
2015-12-15 | 5701-023-1520 | 1.44 ppb |
2016-01-13 | 5701-008-1100 | 1.18 ppb |
2016-01-13 | 5701-022-1110 | 1.30 ppb |
2016-01-13 | 5701-023-1112 | 1.30 ppb |
2016-01-20 | 5701-021-0905 | 1.34 ppb |
2016-02-11 | 5701-008-1400 | 1.08 ppb |
2016-02-11 | 5701-022-1403 | 1.18 ppb |
2016-02-11 | 5701-023-1402 | 1.10 ppb |
2016-03-15 | 5701-008-1015 | 1.55 ppb |
2016-03-15 | 5701-022-1010 | 1.41 ppb |
2016-03-15 | 5701-023-1005 | 1.42 ppb |
2016-04-04 | 5701-008-0950 | 0.740 ppb |
2016-04-04 | 5701-022-0958 | 0.930 ppb |
2016-04-04 | 5701-023-0956 | 0.800 ppb |
2016-04-18 | 5701-021-1141 | 1.90 ppb |
2016-05-04 | 5701-008-1430 | 1.18 ppb |
2016-05-04 | 5701-022-1441 | 1.04 ppb |
2016-05-04 | 5701-023-1447 | 1.01 ppb |
2016-05-23 | 5701-010-1102 | ND |
2016-05-23 | 5701-024-1059 | 0.520 ppb |
2016-05-23 | 5701-025-1100 | ND |
2016-07-06 | 5701-010-1317 | ND |
2016-07-06 | 5701-024-1328 | ND |
2016-07-06 | 5701-025-1323 | ND |
2016-07-13 | 5701-008-1530 | 1.35 ppb |
2016-07-13 | 5701-022-1535 | 1.12 ppb |
2016-07-13 | 5701-023-1545 | 0.990 ppb |
2016-07-20 | 5701-006-1135 | ND |
2016-07-20 | 5701-015-1120 | ND |
2016-07-20 | 5701-021-1105 | 1.37 ppb |
2016-08-03 | 5701-008-1417 | 1.04 ppb |
2016-08-03 | 5701-010-1440 | ND |
2016-08-03 | 5701-022-1415 | 1.09 ppb |
2016-08-03 | 5701-023-1416 | 1.12 ppb |
2016-08-03 | 5701-024-1442 | ND |
2016-08-03 | 5701-025-1441 | ND |
2016-09-13 | 5701-008-1355 | 1.23 ppb |
2016-09-13 | 5701-010-1115 | ND |
2016-09-13 | 5701-022-1347 | 1.23 ppb |
2016-09-13 | 5701-023-1350 | 1.23 ppb |
2016-09-13 | 5701-024-1130 | ND |
2016-09-13 | 5701-025-1118 | ND |
2016-10-13 | 5701-008-1520 | 1.28 ppb |
2016-10-13 | 5701-010-1042 | ND |
2016-10-13 | 5701-022-1530 | 1.18 ppb |
2016-10-13 | 5701-023-1529 | 1.15 ppb |
2016-10-13 | 5701-024-1050 | ND |
2016-10-13 | 5701-025-1055 | ND |
2016-10-25 | 5701-021-1527 | 1.44 ppb |
2016-11-15 | 5701-008-1540 | 1.05 ppb |
2016-11-15 | 5701-010-1415 | ND |
2016-11-15 | 5701-022-1515 | 1.11 ppb |
2016-11-15 | 5701-023-1525 | 1.08 ppb |
2016-11-15 | 5701-024-1357 | ND |
2016-11-15 | 5701-025-1351 | ND |
2016-12-13 | 5701-008-1119 | 1.60 ppb |
2016-12-13 | 5810-010-1305 | ND |
2016-12-13 | 5701-022-1117 | 1.67 ppb |
2016-12-13 | 5701-023-1118 | 1.43 ppb |
2016-12-13 | 5810-024-1307 | ND |
2016-12-13 | 5810-025-1306 | ND |
2017-01-17 | 5701-008-1007 | 0.930 ppb |
2017-01-17 | 5701-022-1009 | 0.910 ppb |
2017-01-17 | 5701-023-1008 | 0.910 ppb |
2017-01-25 | 5701-021-1140 | ND |
2017-02-07 | 9590-008-1412 | 0.940 ppb |
2017-02-07 | 9590-022-1411 | 1.20 ppb |
2017-02-07 | 9590-023-1411 | 1.10 ppb |
2017-03-07 | 5701-008-1420 | 0.940 ppb |
2017-03-07 | 5701-022-1407 | 1.000 ppb |
2017-03-07 | 5701-023-1412 | 0.950 ppb |
2017-04-19 | 5701-008-1532 | 0.820 ppb |
2017-04-19 | 5701-021-1547 | ND |
2017-04-19 | 5701-022-1530 | 0.920 ppb |
2017-04-19 | 5701-023-1532 | 0.910 ppb |
2017-05-09 | 5701-008-1542 | 1.07 ppb |
2017-05-09 | 5701-022-1529 | 1.15 ppb |
2017-05-09 | 5701-023-1525 | 1.16 ppb |
2017-05-15 | 5701-008-1450 | 1.03 ppb |
2017-05-15 | 5701-022-1455 | 1.18 ppb |
2017-06-14 | 5701-008-1046 | 0.940 ppb |
2017-06-14 | 5701-022-1042 | 1.16 ppb |
2017-06-14 | 5701-023-1043 | 0.990 ppb |
2017-07-11 | 5701-008-1031 | 0.780 ppb |
2017-07-11 | 5701-022-1028 | 0.990 ppb |
2017-07-11 | 5701-023-1029 | 0.960 ppb |
2017-07-25 | 5701-021-1344 | 1.94 ppb |
2017-08-09 | 5701-008-1520 | 1.41 ppb |
2017-08-09 | 5701-022-1510 | 1.21 ppb |
2017-08-09 | 5701-023-1515 | 1.20 ppb |
2017-09-12 | 5701-008-1013 | 0.900 ppb |
2017-09-12 | 5701-022-1011 | 0.970 ppb |
2017-09-12 | 5701-023-1012 | 0.930 ppb |
2017-10-10 | 5701-008-1231 | 0.720 ppb |
2017-10-10 | 5701-022-1229 | 0.770 ppb |
2017-10-10 | 5701-023-1230 | 0.650 ppb |
2017-10-23 | 5701-021-1310 | 0.770 ppb |
2017-11-14 | 5810-008-1305 | 1.000 ppb |
2017-11-14 | 5810-022-1315 | ND |
2017-11-14 | 5810-023-1310 | ND |
2017-12-12 | 5701-008-0948 | ND |
2017-12-12 | 5701-022-0946 | ND |
2017-12-12 | 5701-023-0947 | ND |
2017-12-18 | 9590-007-1359 | ND |
2018-01-05 | 5701-010-1350 | ND |
2018-01-05 | 5701-024-1351 | ND |
2018-01-05 | 5701-025-1350 | ND |
2018-01-24 | 5701-021-1312 | ND |
2018-01-29 | 5701-022-1045 | ND |
2018-01-29 | 5701-023-1046 | ND |
2018-02-13 | 5701-008-1117 | 0.710 ppb |
2018-02-13 | 5701-022-1115 | ND |
2018-02-13 | 5701-023-1116 | ND |
2018-02-21 | 5701-010-1750 | ND |
2018-02-21 | 5701-024-1800 | ND |
2018-02-21 | 5701-025-1755 | ND |
2018-03-06 | 5701-008-0930 | 0.710 ppb |
2018-03-06 | 5701-010-1150 | ND |
2018-03-06 | 5701-022-0929 | ND |
2018-03-06 | 5701-023-0927 | ND |
2018-03-06 | 5701-024-1200 | ND |
2018-03-06 | 5701-025-1155 | ND |
2018-03-22 | 5701-008-0950 | 0.520 ppb |
2018-03-22 | 5701-022-0940 | ND |
2018-03-22 | 5701-023-0930 | ND |
2018-04-12 | 5810-008-1330 | 0.790 ppb |
2018-04-12 | 5810-010-1301 | ND |
2018-04-12 | 5810-022-1336 | 1.000 ppb |
2018-04-12 | 5810-023-1333 | ND |
2018-04-12 | 5810-024-1305 | ND |
2018-04-12 | 5810-025-1303 | ND |
2018-05-01 | 9590-021-1438 | 1.50 ppb |
2018-05-17 | 5701-008-0926 | 0.740 ppb |
2018-05-17 | 5701-022-0932 | 0.910 ppb |
2018-05-17 | 5701-023-0930 | ND |
2018-06-11 | 5701-008-1600 | 0.660 ppb |
2018-06-11 | 5701-010-1548 | ND |
2018-06-11 | 5701-022-1557 | 0.880 ppb |
2018-06-11 | 5701-023-1558 | 1.02 ppb |
2018-06-11 | 5701-024-1549 | ND |
2018-06-11 | 5701-025-1546 | ND |
2018-06-12 | 9590-021-1355 | ND |
2018-07-02 | 5810-008-1134 | 0.600 ppb |
2018-07-02 | 5810-022-1136 | 0.750 ppb |
2018-07-02 | 5810-023-1140 | 0.890 ppb |
2018-07-11 | 5810-010-1356 | ND |
2018-07-11 | 5810-024-1400 | ND |
2018-07-11 | 5810-025-1402 | ND |
2018-07-24 | 5701-014-0917 | ND |
2018-07-24 | 5701-021-0850 | 1.47 ppb |
2018-08-13 | 5701-008-1420 | 0.620 ppb |
2018-08-13 | 5701-022-1426 | 0.670 ppb |
2018-08-13 | 5701-023-1423 | 0.650 ppb |
2018-08-14 | 5701-010-1016 | ND |
2018-08-14 | 5701-024-1020 | ND |
2018-08-14 | 5701-025-1022 | ND |
2018-09-11 | 5701-008-1002 | 0.850 ppb |
2018-09-11 | 5701-022-1009 | 0.890 ppb |
2018-09-11 | 5701-023-1006 | 0.820 ppb |
2018-09-12 | 5701-010-1418 | ND |
2018-09-12 | 5701-024-1422 | ND |
2018-09-12 | 5701-025-1424 | 0.550 ppb |
2018-10-11 | 5701-008-1315 | 0.740 ppb |
2018-10-11 | 5701-010-1340 | ND |
2018-10-11 | 5701-022-1321 | 0.820 ppb |
2018-10-11 | 5701-023-1319 | 0.780 ppb |
2018-10-11 | 5701-024-1344 | ND |
2018-10-11 | 5701-025-1346 | ND |
2018-10-16 | 5810-021-1337 | 1.40 ppb |
2018-11-15 | 5701-008-1500 | 0.990 ppb |
2018-11-15 | 5701-010-0900 | 0.500 ppb |
2018-11-15 | 5701-022-1506 | 1.07 ppb |
2018-11-15 | 5701-023-1504 | 1.06 ppb |
2018-11-15 | 5701-024-0904 | ND |
2018-11-15 | 5701-025-0906 | 0.540 ppb |
2018-12-11 | 5810-008-1515 | 0.870 ppb |
2018-12-11 | 5810-022-1452 | 0.840 ppb |
2018-12-11 | 5810-023-1458 | 0.850 ppb |
2018-12-12 | 5810-010-1314 | ND |
2018-12-12 | 5810-024-1326 | ND |
2018-12-12 | 5810-025-1329 | ND |
2019-01-08 | 5810-008-1345 | 0.930 ppb |
2019-01-08 | 5810-010-0955 | 0.570 ppb |
2019-01-08 | 5810-022-1405 | 0.890 ppb |
2019-01-08 | 5810-023-1400 | 0.960 ppb |
2019-01-08 | 5810-024-1010 | 0.550 ppb |
2019-01-08 | 5810-025-1005 | 0.550 ppb |
2019-01-23 | 9590-021-1150 | 1.30 ppb |
2019-02-13 | 5701-008-1358 | 0.760 ppb |
2019-02-13 | 5701-010-1325 | ND |
2019-02-13 | 5701-022-1406 | 0.670 ppb |
2019-02-13 | 5701-023-1404 | 0.760 ppb |
2019-02-13 | 5701-024-1331 | ND |
2019-02-13 | 5701-025-1329 | ND |
2019-03-12 | 5701-008-1439 | 0.790 ppb |
2019-03-12 | 5701-022-1449 | 0.920 ppb |
2019-03-12 | 5701-023-1444 | 0.770 ppb |
2019-04-04 | 5810-013-1250 | 2.40 ppb |
2019-04-16 | 5701-008-1233 | 0.630 ppb |
2019-04-16 | 5701-022-1240 | 0.680 ppb |
2019-04-16 | 5701-023-1237 | 0.770 ppb |
2019-04-29 | 5701-021-0928 | 1.40 ppb |
2019-05-15 | 5701-008-1458 | 0.720 ppb |
2019-05-15 | 5701-010-1233 | ND |
2019-05-15 | 5701-022-1506 | 0.590 ppb |
2019-05-15 | 5701-023-1502 | 0.790 ppb |
2019-05-15 | 5701-024-1238 | ND |
2019-05-15 | 5701-025-1235 | ND |
2019-06-12 | 5701-008-0949 | 0.620 ppb |
2019-06-12 | 5701-022-1056 | 0.760 ppb |
2019-06-12 | 5701-023-1053 | 0.780 ppb |
2019-07-02 | 5701-010-1550 | ND |
2019-07-02 | 5701-024-1611 | ND |
2019-07-02 | 5701-025-1559 | ND |
2019-07-11 | 5701-008-1412 | 0.850 ppb |
2019-07-11 | 5701-010-0958 | ND |
2019-07-11 | 5701-022-1417 | 0.660 ppb |
2019-07-11 | 5701-023-1419 | 0.770 ppb |
2019-07-11 | 5701-024-1010 | ND |
2019-07-11 | 5701-025-1006 | ND |
2019-07-24 | 5701-021-1452 | 1.90 ppb |
2019-08-15 | 5701-008-1432 | 0.840 ppb |
2019-08-15 | 5701-010-1409 | ND |
2019-08-15 | 5701-022-1443 | 0.860 ppb |
2019-08-15 | 5701-023-1439 | 0.920 ppb |
2019-08-15 | 5701-024-1416 | ND |
2019-08-15 | 5701-025-1420 | ND |
2019-09-12 | 5701-008-1400 | 0.890 ppb |
2019-09-12 | 5701-010-1120 | ND |
2019-09-12 | 5701-022-1330 | 0.890 ppb |
2019-09-12 | 5701-023-1333 | 1.02 ppb |
2019-09-12 | 5701-024-1128 | ND |
2019-09-12 | 5701-025-1125 | 0.550 ppb |
2019-10-02 | 5701-008-0955 | 0.780 ppb |
2019-10-02 | 5701-010-0901 | ND |
2019-10-02 | 5701-022-1004 | 0.710 ppb |
2019-10-02 | 5701-023-0958 | 0.640 ppb |
2019-10-02 | 5701-024-0908 | ND |
2019-10-02 | 5701-025-0905 | ND |
2019-10-16 | 5701-021-1024 | 1.61 ppb |
2019-10-30 | 5701-015-1151 | ND |
2019-11-13 | 5701-010-1109 | ND |
2019-11-13 | 5701-024-1114 | ND |
2019-11-13 | 5701-025-1111 | ND |
2019-12-10 | 5701-015-1320 | ND |
2019-12-18 | 5701-010-1148 | ND |
2019-12-18 | 5701-024-1152 | 0.500 ppb |
2019-12-18 | 5701-025-1155 | ND |