Bromodichloromethane
Truckee Meadows Water Authority
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
289
Samples
0
Samples exceeding legal limit (MCL)
275
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 4.23 ppb | 49 | 49 | 1.60 ppb - 13.0 ppb |
| 2015 | 4.93 ppb | 48 | 47 | ND - 10.00 ppb |
| 2016 | 4.35 ppb | 48 | 46 | ND - 12.0 ppb |
| 2017 | 4.39 ppb | 48 | 45 | ND - 14.0 ppb |
| 2018 | 3.66 ppb | 48 | 44 | ND - 11.0 ppb |
| 2019 | 3.20 ppb | 48 | 44 | ND - 9.05 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-18 | 0214-03 | 4.60 ppb |
| 2014-02-18 | 0214-04 | 3.70 ppb |
| 2014-02-18 | 0214-05 | 4.50 ppb |
| 2014-02-18 | 0214-06 | 4.70 ppb |
| 2014-02-18 | 0214-07 | 4.20 ppb |
| 2014-02-18 | 0214-13 | 3.50 ppb |
| 2014-02-18 | 0214-14 | 4.90 ppb |
| 2014-02-20 | 0214-08 | 3.70 ppb |
| 2014-02-20 | 0214-09 | 3.10 ppb |
| 2014-02-20 | 0214-10 | 2.80 ppb |
| 2014-02-20 | 0214-11 | 5.10 ppb |
| 2014-02-20 | 0214-12 | 3.20 ppb |
| 2014-05-13 | EN2014-00002284 | 1.60 ppb |
| 2014-05-13 | EN2014-00002285 | 2.30 ppb |
| 2014-05-13 | EN2014-00002286 | 2.50 ppb |
| 2014-05-13 | EN2014-00002287 | 2.60 ppb |
| 2014-05-13 | EN2014-00002288 | 2.30 ppb |
| 2014-05-13 | EN2014-00002289 | 1.90 ppb |
| 2014-05-13 | EN2014-00002290 | 2.10 ppb |
| 2014-05-13 | EN2014-00002291 | 2.60 ppb |
| 2014-05-13 | EN2014-00002292 | 4.00 ppb |
| 2014-05-13 | EN2014-00002293 | 2.50 ppb |
| 2014-05-13 | EN2014-00002294 | 1.70 ppb |
| 2014-05-13 | EN2014-00002295 | 2.30 ppb |
| 2014-08-12 | EN2014-00004047 | 3.40 ppb |
| 2014-08-12 | EN2014-00004048 | 4.00 ppb |
| 2014-08-12 | EN2014-00004049 | 3.20 ppb |
| 2014-08-12 | EN2014-00004050 | 3.50 ppb |
| 2014-08-12 | EN2014-00004051 | 4.50 ppb |
| 2014-08-12 | EN2014-00004052 | 4.30 ppb |
| 2014-08-12 | EN2014-00004053 | 4.00 ppb |
| 2014-08-12 | EN2014-00004054 | 3.10 ppb |
| 2014-08-12 | EN2014-00004055 | 12.0 ppb |
| 2014-08-12 | EN2014-00004056 | 5.90 ppb |
| 2014-08-12 | EN2014-00004057 | 4.10 ppb |
| 2014-08-12 | EN2014-00004058 | 3.90 ppb |
| 2014-08-19 | EN2014-00004257 | 13.0 ppb |
| 2014-11-12 | EN2014-00006287 | 4.40 ppb |
| 2014-11-12 | EN2014-00006288 | 2.80 ppb |
| 2014-11-12 | EN2014-00006289 | 6.30 ppb |
| 2014-11-12 | EN2014-00006290 | 5.80 ppb |
| 2014-11-12 | EN2014-00006291 | 4.80 ppb |
| 2014-11-12 | EN2014-00006292 | 4.40 ppb |
| 2014-11-12 | EN2014-00006293 | 5.30 ppb |
| 2014-11-12 | EN2014-00006294 | 5.90 ppb |
| 2014-11-12 | EN2014-00006295 | 6.10 ppb |
| 2014-11-12 | EN2014-00006296 | 6.70 ppb |
| 2014-11-12 | EN2014-00006297 | 4.20 ppb |
| 2014-11-12 | EN2014-00006298 | 5.40 ppb |
| 2015-02-17 | 1502002-01 | 3.30 ppb |
| 2015-02-17 | 1502002-02 | 1.30 ppb |
| 2015-02-17 | 1502002-03 | 3.70 ppb |
| 2015-02-17 | 1502002-04 | 3.90 ppb |
| 2015-02-17 | 1502002-05 | 2.00 ppb |
| 2015-02-17 | 1502002-06 | 2.80 ppb |
| 2015-02-17 | 1502002-07 | 2.70 ppb |
| 2015-02-17 | 1502002-08 | 3.60 ppb |
| 2015-02-17 | 1502002-09 | 4.50 ppb |
| 2015-02-17 | 1502002-10 | 4.10 ppb |
| 2015-02-17 | 1502002-11 | 2.60 ppb |
| 2015-02-17 | 1502002-12 | 2.60 ppb |
| 2015-05-19 | 1505022-01 | 3.30 ppb |
| 2015-05-19 | 1505022-02 | 1.70 ppb |
| 2015-05-19 | 1505022-03 | 3.00 ppb |
| 2015-05-19 | 1505022-04 | 3.20 ppb |
| 2015-05-19 | 1505022-05 | 3.10 ppb |
| 2015-05-19 | 1505022-06 | 3.50 ppb |
| 2015-05-19 | 1505022-07 | 3.70 ppb |
| 2015-05-19 | 1505022-08 | ND |
| 2015-05-19 | 1505022-09 | 4.30 ppb |
| 2015-05-19 | 1505022-10 | 5.80 ppb |
| 2015-05-19 | 1505022-11 | 2.00 ppb |
| 2015-05-19 | 1505022-12 | 3.50 ppb |
| 2015-08-17 | 1508038-01 | 5.70 ppb |
| 2015-08-17 | 1508038-02 | 3.80 ppb |
| 2015-08-17 | 1508038-03 | 7.70 ppb |
| 2015-08-17 | 1508038-04 | 8.70 ppb |
| 2015-08-17 | 1508038-05 | 7.80 ppb |
| 2015-08-17 | 1508038-06 | 6.80 ppb |
| 2015-08-17 | 1508038-07 | 6.00 ppb |
| 2015-08-17 | 1508038-08 | 6.80 ppb |
| 2015-08-17 | 1508038-09 | 10.00 ppb |
| 2015-08-17 | 1508038-10 | 9.00 ppb |
| 2015-08-17 | 1508038-11 | 4.40 ppb |
| 2015-08-17 | 1508038-12 | 6.50 ppb |
| 2015-11-09 | 1511013-01EUR | 7.20 ppb |
| 2015-11-09 | 1511013-02EUR | 3.60 ppb |
| 2015-11-09 | 1511013-03EUR | 10.00 ppb |
| 2015-11-09 | 1511013-04EUR | 8.90 ppb |
| 2015-11-09 | 1511013-05EUR | 7.30 ppb |
| 2015-11-09 | 1511013-06EUR | 7.00 ppb |
| 2015-11-09 | 1511013-07EUR | 4.60 ppb |
| 2015-11-09 | 1511013-08EUR | 8.20 ppb |
| 2015-11-09 | 1511013-09NSHL | 6.70 ppb |
| 2015-11-09 | 1511013-10NSHL | 4.90 ppb |
| 2015-11-09 | 1511013-11NSHL | 4.60 ppb |
| 2015-11-09 | 1511013-12NSHL | 6.40 ppb |
| 2016-02-09 | 1602009-01EUR | 4.90 ppb |
| 2016-02-09 | 1602009-02EUR | 2.50 ppb |
| 2016-02-09 | 1602009-03EUR | 5.70 ppb |
| 2016-02-09 | 1602009-04EUR | 5.10 ppb |
| 2016-02-09 | 1602009-05EUR | 3.80 ppb |
| 2016-02-09 | 1602009-06EUR | 3.40 ppb |
| 2016-02-09 | 1602009-07EUR | 3.80 ppb |
| 2016-02-09 | 1602009-08EUR | 3.80 ppb |
| 2016-02-09 | 1602009-09EUR | 4.50 ppb |
| 2016-02-09 | 1602009-10EUR | 4.90 ppb |
| 2016-02-09 | 1602009-11EUR | 2.90 ppb |
| 2016-02-09 | 1602009-12EUR | 4.60 ppb |
| 2016-05-09 | 1605007-01EUR | 2.20 ppb |
| 2016-05-09 | 1605007-02EUR | 1.40 ppb |
| 2016-05-09 | 1605007-03EUR | 2.80 ppb |
| 2016-05-09 | 1605007-04EUR | 2.80 ppb |
| 2016-05-09 | 1605007-05EUR | 2.80 ppb |
| 2016-05-09 | 1605007-06EUR | 2.70 ppb |
| 2016-05-09 | 1605007-07EUR | 2.80 ppb |
| 2016-05-09 | 1605007-08EUR | 3.80 ppb |
| 2016-05-09 | 1605007-09EUR | 4.00 ppb |
| 2016-05-09 | 1605007-10EUR | 3.60 ppb |
| 2016-05-09 | 1605007-11EUR | 1.90 ppb |
| 2016-05-09 | 1605007-12EUR | 2.80 ppb |
| 2016-08-09 | 1608020-01EUR | 5.10 ppb |
| 2016-08-09 | 1608020-02EUR | 3.30 ppb |
| 2016-08-09 | 1608020-03EUR | 12.0 ppb |
| 2016-08-09 | 1608020-04EUR | 4.40 ppb |
| 2016-08-09 | 1608020-05EUR | 9.10 ppb |
| 2016-08-09 | 1608020-07EUR | 2.30 ppb |
| 2016-08-09 | 1608020-08EUR | 4.40 ppb |
| 2016-08-09 | 1608020-09EUR | 3.50 ppb |
| 2016-08-09 | 1608020-10EUR | 7.50 ppb |
| 2016-08-09 | 1608020-11EUR | 3.30 ppb |
| 2016-08-09 | 1608020-12EUR | ND |
| 2016-08-09 | 1608020-06NSHL | 3.50 ppb |
| 2016-11-08 | 1611004-01EUR | 4.60 ppb |
| 2016-11-08 | 1611004-02EUR | 4.50 ppb |
| 2016-11-08 | 1611004-03EUR | 8.90 ppb |
| 2016-11-08 | 1611004-04EUR | 5.50 ppb |
| 2016-11-08 | 1611004-05EUR | 12.0 ppb |
| 2016-11-08 | 1611004-06EUR | 4.50 ppb |
| 2016-11-08 | 1611004-07EUR | 3.10 ppb |
| 2016-11-08 | 1611004-08EUR | 4.60 ppb |
| 2016-11-08 | 1611004-09EUR | 4.00 ppb |
| 2016-11-08 | 1611004-10EUR | 11.0 ppb |
| 2016-11-08 | 1611004-11EUR | 4.40 ppb |
| 2016-11-08 | 1611004-12EUR | ND |
| 2017-02-07 | 1702003-01EUR | 5.30 ppb |
| 2017-02-07 | 1702003-02EUR | 6.50 ppb |
| 2017-02-07 | 1702003-03EUR | 5.60 ppb |
| 2017-02-07 | 1702003-04EUR | 5.10 ppb |
| 2017-02-07 | 1702003-05EUR | 5.60 ppb |
| 2017-02-07 | 1702003-06EUR | 5.40 ppb |
| 2017-02-07 | 1702003-07EUR | 4.50 ppb |
| 2017-02-07 | 1702003-08EUR | 5.70 ppb |
| 2017-02-07 | 1702003-09EUR | 4.60 ppb |
| 2017-02-07 | 1702003-10EUR | 5.20 ppb |
| 2017-02-07 | 1702003-11EUR | 3.90 ppb |
| 2017-02-07 | 1702003-12EUR | ND |
| 2017-05-09 | 1705019-01EUR | 1.90 ppb |
| 2017-05-09 | 1705019-02EUR | 1.20 ppb |
| 2017-05-09 | 1705019-03EUR | 1.80 ppb |
| 2017-05-09 | 1705019-04EUR | 1.80 ppb |
| 2017-05-09 | 1705019-05EUR | 1.60 ppb |
| 2017-05-09 | 1705019-06EUR | 2.30 ppb |
| 2017-05-09 | 1705019-08EUR | 2.00 ppb |
| 2017-05-09 | 1705019-09EUR | 1.40 ppb |
| 2017-05-09 | 1705019-10EUR | 2.30 ppb |
| 2017-05-09 | 1705019-11EUR | 2.00 ppb |
| 2017-05-09 | 1705019-12EUR | 0.600 ppb |
| 2017-05-09 | 1705019-07NSHL | 1.000 ppb |
| 2017-08-09 | 1708009-01EUR | 3.60 ppb |
| 2017-08-09 | 1708009-02EUR | 3.50 ppb |
| 2017-08-09 | 1708009-03EUR | 12.0 ppb |
| 2017-08-09 | 1708009-04EUR | 3.40 ppb |
| 2017-08-09 | 1708009-05EUR | 8.00 ppb |
| 2017-08-09 | 1708009-06EUR | 3.80 ppb |
| 2017-08-09 | 1708009-07EUR | 2.50 ppb |
| 2017-08-09 | 1708009-08EUR | 5.00 ppb |
| 2017-08-09 | 1708009-09EUR | 3.20 ppb |
| 2017-08-09 | 1708009-10EUR | 14.0 ppb |
| 2017-08-09 | 1708009-11EUR | 1.30 ppb |
| 2017-08-09 | 1708009-12EUR | ND |
| 2017-11-07 | 1711020-01EUR | 7.10 ppb |
| 2017-11-07 | 1711020-02EUR | 7.20 ppb |
| 2017-11-07 | 1711020-03EUR | 8.20 ppb |
| 2017-11-07 | 1711020-04EUR | 6.50 ppb |
| 2017-11-07 | 1711020-05EUR | 8.30 ppb |
| 2017-11-07 | 1711020-06EUR | 3.30 ppb |
| 2017-11-07 | 1711020-07EUR | 2.50 ppb |
| 2017-11-07 | 1711020-08EUR | 4.70 ppb |
| 2017-11-07 | 1711020-09EUR | 9.70 ppb |
| 2017-11-07 | 1711020-10EUR | 11.0 ppb |
| 2017-11-07 | 1711020-11EUR | 4.40 ppb |
| 2017-11-07 | 1711020-12EUR | ND |
| 2018-02-13 | 1802014-01 | 3.00 ppb |
| 2018-02-13 | 1802014-02 | 2.72 ppb |
| 2018-02-13 | 1802014-03 | 3.03 ppb |
| 2018-02-13 | 1802014-04 | 3.00 ppb |
| 2018-02-13 | 1802014-05 | 2.54 ppb |
| 2018-02-13 | 1802014-06 | ND |
| 2018-02-13 | 1802014-07 | 3.13 ppb |
| 2018-02-13 | 1802014-08 | 2.74 ppb |
| 2018-02-13 | 1802014-09 | 2.95 ppb |
| 2018-02-13 | 1802014-10 | ND |
| 2018-02-13 | 1802014-11 | 3.87 ppb |
| 2018-02-13 | 1802014-12 | 2.69 ppb |
| 2018-05-08 | 1805023-01 | 3.20 ppb |
| 2018-05-08 | 1805023-02 | 1.70 ppb |
| 2018-05-08 | 1805023-03 | 2.50 ppb |
| 2018-05-08 | 1805023-04 | 2.20 ppb |
| 2018-05-08 | 1805023-05 | 2.50 ppb |
| 2018-05-08 | 1805023-06 | ND |
| 2018-05-08 | 1805023-07 | 2.30 ppb |
| 2018-05-08 | 1805023-08 | 2.20 ppb |
| 2018-05-08 | 1805023-09 | 3.40 ppb |
| 2018-05-08 | 1805023-10 | 1.70 ppb |
| 2018-05-08 | 1805023-11 | 4.00 ppb |
| 2018-05-08 | 1805023-12 | 3.00 ppb |
| 2018-08-08 | 1808014-01 | 4.90 ppb |
| 2018-08-08 | 1808014-02 | 3.70 ppb |
| 2018-08-08 | 1808014-03 | 9.80 ppb |
| 2018-08-08 | 1808014-04 | 4.40 ppb |
| 2018-08-08 | 1808014-05 | 7.00 ppb |
| 2018-08-08 | 1808014-06 | 3.60 ppb |
| 2018-08-08 | 1808014-07 | 3.00 ppb |
| 2018-08-08 | 1808014-08 | 6.40 ppb |
| 2018-08-08 | 1808014-09 | 3.90 ppb |
| 2018-08-08 | 1808014-10 | 8.00 ppb |
| 2018-08-08 | 1808014-11 | 2.50 ppb |
| 2018-08-08 | 1808014-12 | ND |
| 2018-11-15 | 1811013-01WET | 11.0 ppb |
| 2018-11-15 | 1811013-02WET | 3.60 ppb |
| 2018-11-15 | 1811013-03WET | 4.00 ppb |
| 2018-11-15 | 1811013-04WET | 2.80 ppb |
| 2018-11-15 | 1811013-05WET | 3.60 ppb |
| 2018-11-15 | 1811013-06WET | 3.90 ppb |
| 2018-11-15 | 1811013-07WET | 3.40 ppb |
| 2018-11-15 | 1811013-08WET | 2.20 ppb |
| 2018-11-15 | 1811013-09WET | 11.0 ppb |
| 2018-11-15 | 1811013-10WET | 3.90 ppb |
| 2018-11-15 | 1811013-11WET | 7.00 ppb |
| 2018-11-15 | 1811013-12WET | 3.90 ppb |
| 2019-02-12 | 1902014-01 | 3.89 ppb |
| 2019-02-12 | 1902014-02 | 3.86 ppb |
| 2019-02-12 | 1902014-03 | 3.68 ppb |
| 2019-02-12 | 1902014-04 | 2.93 ppb |
| 2019-02-12 | 1902014-05 | 2.49 ppb |
| 2019-02-12 | 1902014-06 | ND |
| 2019-02-12 | 1902014-07 | 4.03 ppb |
| 2019-02-12 | 1902014-08 | 2.41 ppb |
| 2019-02-12 | 1902014-09 | 3.60 ppb |
| 2019-02-12 | 1902014-10 | 4.18 ppb |
| 2019-02-12 | 1902014-11 | 3.66 ppb |
| 2019-02-12 | 1902014-12 | 3.74 ppb |
| 2019-05-08 | 1905009-01 | 4.81 ppb |
| 2019-05-08 | 1905009-02 | 2.08 ppb |
| 2019-05-08 | 1905009-03 | 2.45 ppb |
| 2019-05-08 | 1905009-04 | 1.83 ppb |
| 2019-05-08 | 1905009-05 | 0.770 ppb |
| 2019-05-08 | 1905009-06 | ND |
| 2019-05-08 | 1905009-07 | 1.98 ppb |
| 2019-05-08 | 1905009-08 | 1.54 ppb |
| 2019-05-08 | 1905009-09 | 4.82 ppb |
| 2019-05-08 | 1905009-10 | 1.89 ppb |
| 2019-05-08 | 1905009-11 | 4.59 ppb |
| 2019-05-08 | 1905009-12 | 2.39 ppb |
| 2019-08-21 | 1908012-01 | 6.51 ppb |
| 2019-08-21 | 1908012-02 | 2.46 ppb |
| 2019-08-21 | 1908012-03 | 2.91 ppb |
| 2019-08-21 | 1908012-04 | 2.71 ppb |
| 2019-08-21 | 1908012-05 | 3.75 ppb |
| 2019-08-21 | 1908012-06 | ND |
| 2019-08-21 | 1908012-07 | 2.74 ppb |
| 2019-08-21 | 1908012-08 | 1.60 ppb |
| 2019-08-21 | 1908012-09 | 7.18 ppb |
| 2019-08-21 | 1908012-10 | ND |
| 2019-08-21 | 1908012-11 | 5.05 ppb |
| 2019-08-21 | 1908012-12 | 4.43 ppb |
| 2019-11-04 | 1911002-01 | 7.04 ppb |
| 2019-11-04 | 1911002-02 | 2.80 ppb |
| 2019-11-04 | 1911002-03 | 3.93 ppb |
| 2019-11-04 | 1911002-04 | 2.80 ppb |
| 2019-11-04 | 1911002-05 | 0.690 ppb |
| 2019-11-04 | 1911002-06 | 2.92 ppb |
| 2019-11-04 | 1911002-07 | 2.89 ppb |
| 2019-11-04 | 1911002-08 | 2.36 ppb |
| 2019-11-04 | 1911002-09 | 9.05 ppb |
| 2019-11-04 | 1911002-10 | 3.50 ppb |
| 2019-11-04 | 1911002-11 | 4.88 ppb |
| 2019-11-04 | 1911002-12 | 4.01 ppb |