Bromoform
Sidney City PWS
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
123
Samples
0
Samples exceeding legal limit (MCL)
100
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 | 0.678 ppb | 20 | 17 | ND - 1.23 ppb |
| 2015 | 0.468 ppb | 20 | 12 | ND - 1.27 ppb |
| 2016 | 0.477 ppb | 21 | 14 | ND - 1.22 ppb |
| 2017 | 0.972 ppb | 22 | 20 | ND - 2.90 ppb |
| 2018 | 1.80 ppb | 20 | 20 | 0.600 ppb - 3.00 ppb |
| 2019 | 1.99 ppb | 20 | 20 | 0.900 ppb - 3.00 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform 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 |
|---|---|---|
| 2014-01-02 | 14A0163-01 | 0.730 ppb |
| 2014-01-02 | 14A0158-01 | 0.580 ppb |
| 2014-01-02 | 14A0158-02 | 0.750 ppb |
| 2014-01-02 | 14A0158-03 | 1.23 ppb |
| 2014-01-02 | 14A0158-04 | 1.000 ppb |
| 2014-04-02 | A140190744 | 0.750 ppb |
| 2014-04-02 | A140190745 | 0.770 ppb |
| 2014-04-02 | A140190746 | 0.940 ppb |
| 2014-04-02 | A140190747 | 0.900 ppb |
| 2014-04-02 | A140190751 | 0.760 ppb |
| 2014-07-02 | A140190754 | ND |
| 2014-07-02 | A140190755 | ND |
| 2014-07-02 | A140191638 | ND |
| 2014-07-02 | A140191641 | 0.600 ppb |
| 2014-07-02 | A140191642 | 0.610 ppb |
| 2014-10-02 | A140217226 | 0.530 ppb |
| 2014-10-02 | A140217227 | 0.780 ppb |
| 2014-10-02 | A140217228 | 0.890 ppb |
| 2014-10-02 | A140217229 | 0.840 ppb |
| 2014-10-02 | A140217230 | 0.900 ppb |
| 2015-01-07 | A150231622 | ND |
| 2015-01-07 | A150231623 | ND |
| 2015-01-07 | A150231624 | 0.540 ppb |
| 2015-01-07 | A150231625 | 0.880 ppb |
| 2015-01-07 | A150231626 | 0.530 ppb |
| 2015-04-01 | 15D0322-01 | ND |
| 2015-04-01 | 15D0322-02 | 0.500 ppb |
| 2015-04-01 | 15D0322-03 | 0.510 ppb |
| 2015-04-01 | 15D0322-04 | 0.530 ppb |
| 2015-04-01 | 15D0323-01 | ND |
| 2015-07-06 | 15G0303-01 | ND |
| 2015-07-06 | 15G0302-01 | ND |
| 2015-07-06 | 15G0302-02 | ND |
| 2015-07-06 | 15G0302-03 | ND |
| 2015-07-06 | 15G0302-04 | 0.500 ppb |
| 2015-10-05 | 15J0265-01 | 0.890 ppb |
| 2015-10-05 | 15J0268-01 | 1.02 ppb |
| 2015-10-05 | 15J0268-02 | 1.21 ppb |
| 2015-10-05 | 15J0268-03 | 0.970 ppb |
| 2015-10-05 | 15J0268-04 | 1.27 ppb |
| 2016-01-04 | 16A0267-04 | ND |
| 2016-01-04 | 16A0267-01 | ND |
| 2016-01-04 | 16A0270-01 | ND |
| 2016-01-04 | 16A0270-02 | 0.540 ppb |
| 2016-01-04 | 16A0270-03 | ND |
| 2016-01-04 | 16A0270-04 | 0.620 ppb |
| 2016-04-07 | A160374639 | 0.620 ppb |
| 2016-04-07 | A160374636 | 0.560 ppb |
| 2016-04-07 | A160374637 | 0.530 ppb |
| 2016-04-07 | A160374638 | 0.600 ppb |
| 2016-04-07 | A160374642 | ND |
| 2016-07-07 | A160399328 | ND |
| 2016-07-07 | A160399330 | 0.780 ppb |
| 2016-07-07 | A160399332 | 0.500 ppb |
| 2016-07-07 | A160399333 | 0.660 ppb |
| 2016-07-07 | A160399334 | 0.960 ppb |
| 2016-10-06 | A160447210 | ND |
| 2016-10-06 | A160447211 | 0.610 ppb |
| 2016-10-06 | A160447212 | 0.990 ppb |
| 2016-10-06 | A160447213 | 0.820 ppb |
| 2016-10-06 | A160447214 | 1.22 ppb |
| 2017-01-06 | 010617015 | 0.640 ppb |
| 2017-01-06 | 010617016 | 0.580 ppb |
| 2017-01-06 | 010617018 | 0.660 ppb |
| 2017-01-06 | 010617019 | 0.650 ppb |
| 2017-04-06 | A170476967 | 0.550 ppb |
| 2017-04-06 | A170476963 | 0.640 ppb |
| 2017-04-06 | A170476964 | 0.640 ppb |
| 2017-04-06 | A170476965 | 0.720 ppb |
| 2017-04-06 | A170476966 | 0.640 ppb |
| 2017-07-13 | A170504514 | ND |
| 2017-07-13 | A170504515 | 0.560 ppb |
| 2017-07-13 | A170504516 | 0.620 ppb |
| 2017-07-13 | A170504517 | 0.530 ppb |
| 2017-07-13 | A170504518 | 0.550 ppb |
| 2017-07-13 | A170504513 | 0.550 ppb |
| 2017-07-14 | A170504519 | ND |
| 2017-07-14 | A170498134 | 0.560 ppb |
| 2017-10-05 | A170476968 | 1.80 ppb |
| 2017-10-05 | A170399678 | 2.30 ppb |
| 2017-10-05 | A170476933 | 2.80 ppb |
| 2017-10-05 | A170476935 | 2.50 ppb |
| 2017-10-05 | A170504521 | 2.90 ppb |
| 2018-01-04 | A180539902 | 0.700 ppb |
| 2018-01-04 | A180539896 | 1.20 ppb |
| 2018-01-04 | A180539897 | 1.30 ppb |
| 2018-01-04 | A180539898 | 2.70 ppb |
| 2018-01-04 | A180539899 | 2.60 ppb |
| 2018-04-05 | A180587503 | 0.600 ppb |
| 2018-04-05 | A180587504 | 1.10 ppb |
| 2018-04-05 | A180587505 | 1.40 ppb |
| 2018-04-05 | A180587506 | 2.30 ppb |
| 2018-04-05 | A180587507 | 2.00 ppb |
| 2018-07-05 | A180605954 | 0.900 ppb |
| 2018-07-05 | A180605946 | 2.30 ppb |
| 2018-07-05 | A180605947 | 1.90 ppb |
| 2018-07-05 | A180605952 | 2.10 ppb |
| 2018-07-05 | A180605953 | 2.20 ppb |
| 2018-10-04 | A180632248 | 1.20 ppb |
| 2018-10-04 | A180632249 | 2.00 ppb |
| 2018-10-04 | A180632250 | 2.50 ppb |
| 2018-10-04 | A180632251 | 1.90 ppb |
| 2018-10-04 | A180632252 | 3.00 ppb |
| 2019-01-03 | 9A00708-01 | 0.900 ppb |
| 2019-01-03 | 9A00591-01 | 1.60 ppb |
| 2019-01-03 | 9A00591-02 | 1.70 ppb |
| 2019-01-03 | 9A00591-03 | 2.50 ppb |
| 2019-01-03 | 9A00591-04 | 1.50 ppb |
| 2019-04-04 | 9D00815-01 | 0.900 ppb |
| 2019-04-04 | 9D00809-03 | 1.80 ppb |
| 2019-04-04 | 9D00809-04 | 1.50 ppb |
| 2019-04-04 | 9D00809-05 | 2.50 ppb |
| 2019-04-04 | 9D00809-06 | 1.70 ppb |
| 2019-07-03 | 9G00880-05 | 1.10 ppb |
| 2019-07-03 | 9G00880-01 | 2.30 ppb |
| 2019-07-03 | 9G00880-02 | 2.10 ppb |
| 2019-07-03 | 9G00880-03 | 2.40 ppb |
| 2019-07-03 | 9G00880-04 | 2.50 ppb |
| 2019-10-03 | 9J00933-01 | 1.50 ppb |
| 2019-10-03 | 9J00926-01 | 2.80 ppb |
| 2019-10-03 | 9J00926-02 | 2.80 ppb |
| 2019-10-03 | 9J00926-03 | 3.00 ppb |
| 2019-10-03 | 9J00926-04 | 2.70 ppb |