Bromoform
City of Laredo
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 5.03 ppb | 33 | 33 | 2.20 ppb - 7.00 ppb |
2015 | 5.56 ppb | 37 | 37 | 1.20 ppb - 11.9 ppb |
2016 | 6.39 ppb | 37 | 37 | 2.80 ppb - 11.7 ppb |
2017 | 6.04 ppb | 37 | 37 | 2.00 ppb - 11.3 ppb |
2018 | 3.68 ppb | 41 | 38 | ND - 6.20 ppb |
2019 | 4.69 ppb | 53 | 53 | 1.40 ppb - 9.20 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 |
---|---|---|
2014-02-19 | AC43566 | 4.70 ppb |
2014-02-19 | AC43569 | 4.70 ppb |
2014-02-19 | AC43532 | 6.10 ppb |
2014-02-19 | AC43564 | 4.40 ppb |
2014-02-19 | AC43567 | 4.90 ppb |
2014-02-19 | AC43549 | 4.70 ppb |
2014-02-19 | AC43531 | 5.50 ppb |
2014-02-19 | AC43562 | 4.70 ppb |
2014-06-13 | AC56972 | 6.10 ppb |
2014-06-13 | AC56976 | 6.00 ppb |
2014-06-13 | AC56950 | 4.30 ppb |
2014-06-13 | AC56928 | 5.10 ppb |
2014-06-13 | AC56968 | 6.30 ppb |
2014-06-13 | AC56927 | 6.70 ppb |
2014-06-13 | AC56969 | 5.80 ppb |
2014-06-13 | AC56971 | 6.00 ppb |
2014-08-22 | AC65086 | 6.70 ppb |
2014-08-22 | AC65109 | 6.00 ppb |
2014-08-22 | AC65110 | 6.00 ppb |
2014-08-22 | AC65104 | 7.00 ppb |
2014-08-22 | AC65126 | 6.40 ppb |
2014-08-22 | AC65107 | 6.30 ppb |
2014-08-22 | AC65111 | 5.70 ppb |
2014-08-22 | AC65108 | 6.20 ppb |
2014-08-22 | AC65127 | 7.00 ppb |
2014-12-03 | AC73563 | 3.50 ppb |
2014-12-03 | AC73532 | 2.70 ppb |
2014-12-03 | AC73534 | 2.20 ppb |
2014-12-03 | AC73564 | 3.50 ppb |
2014-12-03 | AC73535 | 2.70 ppb |
2014-12-03 | AC73529 | 2.90 ppb |
2014-12-03 | AC73536 | 2.60 ppb |
2014-12-03 | AC73528 | 2.70 ppb |
2015-03-16 | AC84371 | 10.1 ppb |
2015-03-16 | AC84374 | 11.9 ppb |
2015-03-16 | AC84378 | 9.70 ppb |
2015-03-16 | AC84400 | 8.30 ppb |
2015-03-16 | AC84372 | 9.00 ppb |
2015-03-16 | AC84373 | 10.3 ppb |
2015-03-16 | AC84381 | 11.1 ppb |
2015-03-16 | AC84380 | 9.80 ppb |
2015-06-09 | AC95240 | 1.90 ppb |
2015-06-09 | AC95248 | 2.60 ppb |
2015-06-09 | AC95235 | 1.20 ppb |
2015-06-09 | AC95251 | 3.10 ppb |
2015-06-09 | AC95239 | 3.20 ppb |
2015-06-09 | AC95249 | 3.20 ppb |
2015-06-09 | AC95250 | 3.10 ppb |
2015-06-09 | AC95245 | 3.30 ppb |
2015-09-15 | AD07131 | 3.50 ppb |
2015-09-15 | AD07076 | 4.00 ppb |
2015-09-15 | AD07075 | 6.20 ppb |
2015-09-15 | AD07060 | 8.80 ppb |
2015-09-15 | AD07070 | 2.90 ppb |
2015-09-15 | AD07077 | 4.00 ppb |
2015-09-15 | AD07072 | 4.60 ppb |
2015-09-15 | AD07063 | 6.40 ppb |
2015-09-15 | AD07064 | 5.30 ppb |
2015-11-17 | AD13809 | 4.80 ppb |
2015-11-17 | AD13811 | 8.40 ppb |
2015-11-17 | AD13806 | 5.60 ppb |
2015-11-17 | AD13793 | 3.20 ppb |
2015-11-17 | AD13813 | 4.80 ppb |
2015-11-17 | AD13805 | 5.50 ppb |
2015-11-17 | AD13808 | 5.10 ppb |
2015-11-17 | AD13812 | 5.20 ppb |
2015-11-17 | AD13862 | 4.20 ppb |
2015-11-18 | AD14069 | 3.40 ppb |
2015-11-18 | AD14073 | 4.30 ppb |
2015-12-14 | AD16823 | 3.70 ppb |
2016-02-16 | AD23653 | 4.70 ppb |
2016-02-17 | AD23890 | 6.20 ppb |
2016-02-17 | AD23891 | 11.3 ppb |
2016-02-17 | AD23872 | 7.40 ppb |
2016-02-17 | AD23882 | 7.40 ppb |
2016-02-17 | AD23892 | 7.30 ppb |
2016-02-17 | AD23884 | 8.20 ppb |
2016-02-17 | AD23873 | 6.60 ppb |
2016-03-21 | AD29865 | 6.20 ppb |
2016-06-20 | AD41389 | 2.80 ppb |
2016-06-20 | AD41313 | 5.80 ppb |
2016-06-20 | AD41343 | 8.20 ppb |
2016-06-20 | AD41312 | 11.7 ppb |
2016-06-20 | AD41320 | 5.40 ppb |
2016-06-20 | AD41310 | 5.70 ppb |
2016-06-20 | AD41309 | 6.70 ppb |
2016-06-20 | AD41307 | 6.80 ppb |
2016-06-20 | AD41345 | 6.90 ppb |
2016-07-21 | AD45241 | 6.50 ppb |
2016-07-21 | AD45263 | 6.60 ppb |
2016-07-21 | AD45249 | 6.90 ppb |
2016-07-21 | AD45222 | 6.70 ppb |
2016-07-21 | AD45217 | 7.40 ppb |
2016-07-21 | AD45203 | 9.80 ppb |
2016-07-21 | AD45218 | 6.50 ppb |
2016-07-21 | AD45220 | 6.60 ppb |
2016-07-21 | AD45205 | 6.90 ppb |
2016-07-21 | AD45216 | 7.40 ppb |
2016-07-21 | AD45204 | 6.60 ppb |
2016-10-31 | AD55436 | 4.20 ppb |
2016-10-31 | AD55433 | 5.70 ppb |
2016-10-31 | AD55438 | 4.20 ppb |
2016-10-31 | AD55437 | 3.40 ppb |
2016-10-31 | AD55427 | 3.90 ppb |
2016-10-31 | AD55435 | 3.70 ppb |
2016-10-31 | AD55443 | 4.20 ppb |
2016-10-31 | AD55434 | 4.10 ppb |
2017-02-21 | AD71288 | 4.70 ppb |
2017-02-21 | AD71226 | 5.90 ppb |
2017-02-21 | AD71227 | 11.3 ppb |
2017-02-21 | AD71228 | 8.40 ppb |
2017-02-21 | AD71229 | 5.80 ppb |
2017-02-21 | AD71230 | 6.30 ppb |
2017-02-21 | AD71231 | 6.70 ppb |
2017-02-21 | AD71232 | 8.30 ppb |
2017-02-21 | AD71225 | 6.20 ppb |
2017-06-19 | AD87351 | 8.60 ppb |
2017-06-19 | AD87332 | 7.10 ppb |
2017-06-19 | AD87353 | 8.10 ppb |
2017-06-19 | AD87327 | 6.70 ppb |
2017-06-19 | AD87329 | 6.60 ppb |
2017-06-19 | AD87352 | 6.60 ppb |
2017-06-19 | AD87328 | 7.70 ppb |
2017-06-19 | AD87314 | 6.80 ppb |
2017-09-05 | AD94765 | 5.40 ppb |
2017-09-05 | AD94763 | 5.40 ppb |
2017-09-05 | AD94761 | 5.30 ppb |
2017-09-05 | AD94703 | 7.90 ppb |
2017-09-05 | AD94704 | 8.70 ppb |
2017-09-05 | AD94711 | 7.00 ppb |
2017-09-05 | AD94701 | 6.20 ppb |
2017-09-05 | AD94702 | 6.30 ppb |
2017-09-05 | AD94699 | 7.00 ppb |
2017-09-05 | AD94708 | 7.50 ppb |
2017-09-05 | AD94707 | 7.80 ppb |
2017-12-05 | AE06800 | 2.00 ppb |
2017-12-05 | AE06733 | 2.20 ppb |
2017-12-05 | AE06739 | 4.30 ppb |
2017-12-05 | AE06738 | 2.70 ppb |
2017-12-05 | AE06736 | 2.50 ppb |
2017-12-05 | AE06734 | 3.10 ppb |
2017-12-05 | AE06741 | 3.50 ppb |
2017-12-05 | AE06737 | 4.40 ppb |
2017-12-05 | AE06740 | 2.50 ppb |
2018-03-05 | AE16613 | 3.90 ppb |
2018-03-05 | AE16611 | 5.80 ppb |
2018-03-05 | AE16594 | 4.40 ppb |
2018-03-05 | AE16605 | 4.80 ppb |
2018-03-05 | AE16604 | 4.80 ppb |
2018-03-05 | AE16597 | 4.90 ppb |
2018-03-05 | AE16606 | 5.00 ppb |
2018-03-05 | AE16608 | 4.90 ppb |
2018-04-30 | AE24361 | 4.40 ppb |
2018-04-30 | AE24366 | 5.40 ppb |
2018-04-30 | AE24360 | 4.90 ppb |
2018-04-30 | AE24355 | 3.90 ppb |
2018-04-30 | AE24356 | 3.60 ppb |
2018-04-30 | AE24363 | 4.10 ppb |
2018-04-30 | AE24354 | 5.20 ppb |
2018-04-30 | AE24357 | 4.40 ppb |
2018-07-16 | AE33571 | 3.20 ppb |
2018-07-16 | AE33575 | 3.60 ppb |
2018-07-16 | AE33508 | 5.30 ppb |
2018-07-16 | AE33511 | 5.60 ppb |
2018-07-16 | AE33506 | 5.40 ppb |
2018-07-16 | AE33531 | 4.10 ppb |
2018-07-16 | AE33510 | 5.20 ppb |
2018-07-16 | AE33529 | 6.20 ppb |
2018-07-16 | AE33536 | 5.90 ppb |
2018-07-16 | AE33537 | 5.10 ppb |
2018-10-16 | AE43640 | ND |
2018-10-16 | AE43642 | ND |
2018-10-16 | AE43638 | ND |
2018-11-20 | AE46618 | 1.50 ppb |
2018-11-20 | AE46619 | 2.00 ppb |
2018-11-20 | AE46627 | 1.20 ppb |
2018-11-20 | AE46624 | 2.30 ppb |
2018-11-20 | AE46625 | 2.10 ppb |
2018-11-20 | AE46616 | 3.40 ppb |
2018-11-20 | AE46621 | 2.30 ppb |
2018-11-20 | AE46626 | 1.30 ppb |
2018-11-20 | AE46617 | 1.40 ppb |
2018-11-20 | AE46623 | 2.60 ppb |
2018-11-20 | AE46622 | 2.70 ppb |
2018-11-20 | AE46620 | 4.10 ppb |
2019-03-11 | AE57867 | 1.40 ppb |
2019-03-12 | AE58034 | 2.70 ppb |
2019-03-12 | AE58035 | 3.50 ppb |
2019-03-12 | AE58040 | 3.30 ppb |
2019-03-12 | AE58038 | 3.30 ppb |
2019-03-12 | AE58043 | 3.20 ppb |
2019-03-12 | AE58036 | 3.40 ppb |
2019-03-12 | AE58039 | 3.50 ppb |
2019-03-12 | AE58041 | 3.10 ppb |
2019-03-12 | AE58044 | 3.80 ppb |
2019-03-12 | AE58042 | 3.70 ppb |
2019-03-12 | AE58033 | 4.40 ppb |
2019-03-12 | AE58032 | 3.00 ppb |
2019-06-06 | AE69489 | 2.20 ppb |
2019-06-06 | AE69428 | 3.70 ppb |
2019-06-06 | AE69433 | 6.10 ppb |
2019-06-06 | AE69429 | 3.60 ppb |
2019-06-06 | AE69436 | 4.40 ppb |
2019-06-06 | AE69437 | 4.70 ppb |
2019-06-06 | AE69426 | 5.10 ppb |
2019-06-06 | AE69432 | 5.30 ppb |
2019-06-06 | AE69430 | 3.80 ppb |
2019-06-06 | AE69434 | 5.60 ppb |
2019-06-06 | AE69435 | 5.90 ppb |
2019-06-06 | AE69427 | 5.60 ppb |
2019-06-06 | AE69431 | 4.20 ppb |
2019-08-20 | AE79960 | 4.60 ppb |
2019-08-20 | AE79956 | 4.90 ppb |
2019-08-20 | AE79958 | 5.10 ppb |
2019-08-20 | AE79821 | 4.30 ppb |
2019-08-20 | AE79822 | 7.90 ppb |
2019-08-20 | AE79803 | 3.50 ppb |
2019-08-20 | AE79807 | 4.70 ppb |
2019-08-20 | AE79802 | 4.60 ppb |
2019-08-20 | AE79820 | 5.20 ppb |
2019-08-20 | AE79818 | 5.30 ppb |
2019-08-20 | AE79806 | 5.20 ppb |
2019-08-20 | AE79805 | 5.60 ppb |
2019-08-20 | AE79824 | 7.50 ppb |
2019-08-20 | AE79825 | 9.20 ppb |
2019-08-20 | AE79804 | 4.20 ppb |
2019-12-18 | AE92932 | 4.00 ppb |
2019-12-18 | AE92924 | 6.00 ppb |
2019-12-18 | AE92921 | 3.80 ppb |
2019-12-18 | AE92927 | 5.40 ppb |
2019-12-18 | AE92929 | 5.60 ppb |
2019-12-18 | AE92928 | 5.40 ppb |
2019-12-18 | AE92923 | 5.90 ppb |
2019-12-18 | AE92922 | 5.40 ppb |
2019-12-18 | AE92930 | 6.10 ppb |
2019-12-18 | AE92925 | 6.20 ppb |
2019-12-18 | AE92933 | 6.50 ppb |
2019-12-18 | AE92926 | 4.10 ppb |