Bromate
Altoona Water Authority
Bromate is a carcinogenic disinfection byproduct formed when source waters containing bromide are treated with ozonation or sodium hypochlorite. Studies of laboratory animals show that bromate damages DNA and causes cancer in multiple organs. Click here to read more about disinfection byproducts.
340
Samples
0
Samples exceeding legal limit (MCL)
162
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 | 1.17 ppb | 62 | 27 | ND - 5.70 ppb |
| 2015 | 1.10 ppb | 58 | 35 | ND - 3.90 ppb |
| 2016 | 1.76 ppb | 60 | 47 | ND - 6.60 ppb |
| 2017 | 0.865 ppb | 60 | 30 | ND - 3.80 ppb |
| 2018 | 0.317 ppb | 60 | 12 | ND - 2.20 ppb |
| 2019 | 0.368 ppb | 40 | 11 | ND - 2.10 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for bromate was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 10 ppb
The legal limit for bromate, established in 1998, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to bromate exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-09 | 2956112 | ND |
| 2014-01-09 | 2956113 | ND |
| 2014-01-09 | 2956114 | ND |
| 2014-01-09 | 2956115 | ND |
| 2014-01-09 | 2956116 | ND |
| 2014-01-24 | 2963653 | ND |
| 2014-02-11 | 2972833 | ND |
| 2014-02-11 | 2972834 | ND |
| 2014-02-11 | 2972835 | ND |
| 2014-02-11 | 2972836 | ND |
| 2014-02-11 | 2972837 | ND |
| 2014-02-11 | 2972838 | ND |
| 2014-03-05 | 2987133 | ND |
| 2014-03-05 | 2987134 | ND |
| 2014-03-05 | 2987135 | ND |
| 2014-03-05 | 2987136 | ND |
| 2014-03-05 | 2987137 | ND |
| 2014-04-03 | 3003247 | ND |
| 2014-04-03 | 3003248 | ND |
| 2014-04-03 | 3003249 | ND |
| 2014-04-03 | 3003250 | ND |
| 2014-04-03 | 3003251 | 1.50 ppb |
| 2014-05-08 | 3023023 | ND |
| 2014-05-08 | 3023024 | ND |
| 2014-05-08 | 3023025 | 1.50 ppb |
| 2014-05-08 | 3023026 | ND |
| 2014-05-08 | 3023027 | ND |
| 2014-06-05 | 3039903 | ND |
| 2014-06-05 | 3039904 | ND |
| 2014-06-05 | 3039905 | 3.30 ppb |
| 2014-06-05 | 3039906 | 1.10 ppb |
| 2014-06-05 | 3039907 | 1.50 ppb |
| 2014-07-09 | 3061007 | ND |
| 2014-07-09 | 3061008 | ND |
| 2014-07-09 | 3061009 | 5.60 ppb |
| 2014-07-09 | 3061010 | ND |
| 2014-07-09 | 3061011 | ND |
| 2014-08-07 | 3079242 | ND |
| 2014-08-07 | 3079243 | 1.50 ppb |
| 2014-08-07 | 3079246 | 4.90 ppb |
| 2014-08-07 | 3079244 | 1.50 ppb |
| 2014-08-07 | 3079245 | 2.10 ppb |
| 2014-09-04 | 3098700 | ND |
| 2014-09-04 | 3098701 | 1.90 ppb |
| 2014-09-04 | 3098702 | 5.70 ppb |
| 2014-09-04 | 3098703 | 2.30 ppb |
| 2014-09-04 | 3098704 | 4.10 ppb |
| 2014-10-02 | 3116883 | 1.40 ppb |
| 2014-10-02 | 3116884 | 1.30 ppb |
| 2014-10-02 | 3116885 | 4.70 ppb |
| 2014-10-02 | 3116886 | 3.30 ppb |
| 2014-10-02 | 3116887 | 3.30 ppb |
| 2014-11-04 | 3133978 | 1.90 ppb |
| 2014-11-04 | 3133979 | 1.80 ppb |
| 2014-11-04 | 3133980 | 3.20 ppb |
| 2014-11-04 | 3133981 | 2.40 ppb |
| 2014-11-04 | 3133982 | 5.60 ppb |
| 2014-12-04 | 3150501 | ND |
| 2014-12-04 | 3150502 | ND |
| 2014-12-04 | 3150503 | 1.70 ppb |
| 2014-12-04 | 3150504 | 1.40 ppb |
| 2014-12-04 | 3150505 | 2.00 ppb |
| 2015-01-08 | 12330063 | ND |
| 2015-01-08 | 12330064 | ND |
| 2015-01-08 | 12330065 | ND |
| 2015-01-08 | 12330066 | ND |
| 2015-01-08 | 12330067 | 1.70 ppb |
| 2015-02-05 | 12444274 | ND |
| 2015-02-05 | 12444275 | ND |
| 2015-02-05 | 12444276 | 1.50 ppb |
| 2015-02-05 | 12444277 | ND |
| 2015-02-05 | 12444278 | 1.40 ppb |
| 2015-03-05 | 12558575 | ND |
| 2015-03-05 | 12558576 | ND |
| 2015-03-05 | 12558577 | ND |
| 2015-03-05 | 12558578 | 1.000 ppb |
| 2015-03-05 | 12558579 | 1.50 ppb |
| 2015-04-02 | 12676917 | ND |
| 2015-04-02 | 12676918 | ND |
| 2015-04-02 | 12676919 | 1.40 ppb |
| 2015-04-02 | 12676920 | ND |
| 2015-04-02 | 12676921 | ND |
| 2015-05-06 | 12799397 | 1.40 ppb |
| 2015-05-06 | 12799398 | 1.10 ppb |
| 2015-05-06 | 12799399 | 2.10 ppb |
| 2015-05-06 | 12799400 | 1.10 ppb |
| 2015-05-06 | 12799401 | 1.60 ppb |
| 2015-06-04 | 12932819 | ND |
| 2015-06-04 | 12932820 | ND |
| 2015-06-04 | 12932821 | 2.10 ppb |
| 2015-06-04 | 12932822 | ND |
| 2015-06-04 | 12932823 | 1.60 ppb |
| 2015-07-09 | 13058688 | ND |
| 2015-07-09 | 13058689 | ND |
| 2015-07-09 | 13058690 | 1.40 ppb |
| 2015-07-09 | 13058691 | 1.20 ppb |
| 2015-07-22 | 13180945 | ND |
| 2015-08-06 | 13180948 | 1.10 ppb |
| 2015-08-06 | 13180949 | 1.20 ppb |
| 2015-08-06 | 13180950 | 2.80 ppb |
| 2015-08-06 | 13180951 | 1.80 ppb |
| 2015-08-06 | 13180952 | 2.00 ppb |
| 2015-09-03 | 13311311 | 1.000 ppb |
| 2015-09-03 | 13311312 | 3.90 ppb |
| 2015-09-03 | 13311313 | 1.30 ppb |
| 2015-09-03 | 13311314 | 2.70 ppb |
| 2015-10-08 | 13435566 | 1.40 ppb |
| 2015-10-08 | 13435567 | 2.40 ppb |
| 2015-10-08 | 13435568 | 2.20 ppb |
| 2015-10-08 | 13435569 | 1.80 ppb |
| 2015-11-05 | 13558084 | ND |
| 2015-11-05 | 13558085 | 2.30 ppb |
| 2015-11-05 | 13558086 | 1.90 ppb |
| 2015-11-05 | 13558087 | 2.90 ppb |
| 2015-11-30 | 13677883 | ND |
| 2015-12-01 | 13677884 | ND |
| 2015-12-01 | 13677885 | 1.10 ppb |
| 2015-12-01 | 13677886 | 3.10 ppb |
| 2015-12-01 | 13677887 | 1.40 ppb |
| 2015-12-01 | 13677888 | 3.20 ppb |
| 2016-01-06 | 13798217 | ND |
| 2016-01-06 | 13798221 | 1.30 ppb |
| 2016-01-06 | 13798218 | 1.50 ppb |
| 2016-01-06 | 13798219 | 1.80 ppb |
| 2016-01-06 | 13798220 | 2.20 ppb |
| 2016-02-02 | 13913387 | 1.10 ppb |
| 2016-02-02 | 13913388 | ND |
| 2016-02-02 | 13913391 | 1.40 ppb |
| 2016-02-02 | 13913390 | 1.10 ppb |
| 2016-02-02 | 13913389 | 2.40 ppb |
| 2016-03-01 | 14029046 | ND |
| 2016-03-01 | 14029047 | ND |
| 2016-03-01 | 14029050 | 1.000 ppb |
| 2016-03-01 | 14029049 | ND |
| 2016-03-01 | 14029048 | 1.50 ppb |
| 2016-04-05 | 14159286 | ND |
| 2016-04-05 | 14159287 | ND |
| 2016-04-05 | 14159290 | 1.50 ppb |
| 2016-04-05 | 14159289 | 1.10 ppb |
| 2016-04-05 | 14159288 | 1.90 ppb |
| 2016-05-17 | 14308889 | 1.10 ppb |
| 2016-05-17 | 14308890 | ND |
| 2016-05-17 | 14308891 | 1.30 ppb |
| 2016-05-17 | 14308892 | 1.30 ppb |
| 2016-05-17 | 14308893 | 2.70 ppb |
| 2016-06-07 | 14466453 | ND |
| 2016-06-07 | 14466454 | ND |
| 2016-06-07 | 14466457 | 1.40 ppb |
| 2016-06-07 | 14466456 | ND |
| 2016-06-07 | 14466455 | 1.60 ppb |
| 2016-07-05 | 14631836 | 1.40 ppb |
| 2016-07-05 | 14631837 | 1.20 ppb |
| 2016-07-05 | 14631838 | 1.70 ppb |
| 2016-07-05 | 14631839 | 1.30 ppb |
| 2016-07-05 | 14631840 | 3.50 ppb |
| 2016-08-02 | 14798497 | 1.20 ppb |
| 2016-08-02 | 14798498 | 1.40 ppb |
| 2016-08-02 | 14798501 | 1.70 ppb |
| 2016-08-02 | 14798500 | 2.10 ppb |
| 2016-08-02 | 14798499 | 3.50 ppb |
| 2016-09-06 | 14971158 | 1.000 ppb |
| 2016-09-06 | 14971159 | 2.00 ppb |
| 2016-09-06 | 14971162 | 5.40 ppb |
| 2016-09-06 | 14971161 | 3.30 ppb |
| 2016-09-06 | 14971160 | 6.60 ppb |
| 2016-10-04 | 15131502 | 2.30 ppb |
| 2016-10-04 | 15131503 | 1.40 ppb |
| 2016-10-04 | 15131506 | 4.70 ppb |
| 2016-10-04 | 15131505 | 3.30 ppb |
| 2016-10-04 | 15131504 | 6.30 ppb |
| 2016-11-01 | 15132283 | 1.20 ppb |
| 2016-11-01 | 15132284 | 1.40 ppb |
| 2016-11-01 | 15132287 | 3.70 ppb |
| 2016-11-01 | 15132286 | 1.20 ppb |
| 2016-11-01 | 15132285 | 4.40 ppb |
| 2016-12-06 | 15424976 | ND |
| 2016-12-06 | 15424977 | 1.70 ppb |
| 2016-12-06 | 15424980 | 3.40 ppb |
| 2016-12-06 | 15424979 | ND |
| 2016-12-06 | 15424978 | 3.90 ppb |
| 2017-01-03 | 15569309 | ND |
| 2017-01-03 | 15569310 | ND |
| 2017-01-03 | 15569313 | 1.10 ppb |
| 2017-01-03 | 15569312 | 1.40 ppb |
| 2017-01-03 | 15569311 | 1.60 ppb |
| 2017-02-07 | 15705251 | ND |
| 2017-02-07 | 15705252 | ND |
| 2017-02-07 | 15705255 | ND |
| 2017-02-07 | 15705254 | ND |
| 2017-02-07 | 15705253 | 1.90 ppb |
| 2017-03-07 | 15846474 | ND |
| 2017-03-07 | 15846475 | ND |
| 2017-03-07 | 15846478 | ND |
| 2017-03-07 | 15846477 | ND |
| 2017-03-07 | 15846476 | 1.40 ppb |
| 2017-04-04 | 15997145 | ND |
| 2017-04-04 | 15997146 | ND |
| 2017-04-04 | 15997144 | 1.20 ppb |
| 2017-04-04 | 15997143 | ND |
| 2017-04-04 | 15997147 | 1.70 ppb |
| 2017-05-01 | 15997918 | ND |
| 2017-05-01 | 15997919 | ND |
| 2017-05-01 | 15997922 | 1.50 ppb |
| 2017-05-01 | 15997921 | ND |
| 2017-05-01 | 15997920 | 1.70 ppb |
| 2017-06-06 | 16316538 | ND |
| 2017-06-06 | 16316539 | ND |
| 2017-06-06 | 16316542 | 1.40 ppb |
| 2017-06-06 | 16316541 | ND |
| 2017-06-06 | 16316540 | 1.50 ppb |
| 2017-07-05 | 16469347 | ND |
| 2017-07-05 | 16469348 | ND |
| 2017-07-05 | 16469346 | 1.40 ppb |
| 2017-07-05 | 16469345 | ND |
| 2017-07-05 | 16469349 | 1.90 ppb |
| 2017-08-01 | 16624573 | ND |
| 2017-08-01 | 16624574 | 1.80 ppb |
| 2017-08-01 | 16624577 | 3.80 ppb |
| 2017-08-01 | 16624576 | 1.10 ppb |
| 2017-08-01 | 16624575 | 1.30 ppb |
| 2017-09-05 | 16783206 | ND |
| 2017-09-05 | 16783207 | 1.70 ppb |
| 2017-09-05 | 16783205 | 2.70 ppb |
| 2017-09-05 | 16783204 | 2.60 ppb |
| 2017-09-05 | 16783208 | 1.70 ppb |
| 2017-10-03 | 16932823 | 1.10 ppb |
| 2017-10-03 | 16932824 | 1.10 ppb |
| 2017-10-03 | 16932827 | 2.40 ppb |
| 2017-10-03 | 16932826 | 2.40 ppb |
| 2017-10-03 | 16932825 | 3.30 ppb |
| 2017-11-07 | 17073661 | ND |
| 2017-11-07 | 17073660 | ND |
| 2017-11-07 | 17073662 | 1.20 ppb |
| 2017-11-07 | 17073659 | 1.70 ppb |
| 2017-11-07 | 17073665 | ND |
| 2017-12-05 | 17213222 | ND |
| 2017-12-05 | 17213221 | ND |
| 2017-12-05 | 17213223 | 1.000 ppb |
| 2017-12-05 | 17213219 | ND |
| 2017-12-05 | 17213220 | 1.30 ppb |
| 2018-01-02 | 3847457 | ND |
| 2018-01-02 | 3847458 | ND |
| 2018-01-02 | 3847461 | ND |
| 2018-01-02 | 3847460 | ND |
| 2018-01-02 | 3847459 | 1.30 ppb |
| 2018-02-06 | 3867394 | ND |
| 2018-02-06 | 3867395 | ND |
| 2018-02-06 | 3867396 | ND |
| 2018-02-06 | 3867397 | ND |
| 2018-02-06 | 3867398 | ND |
| 2018-03-21 | 3895892 | ND |
| 2018-03-21 | 3895893 | ND |
| 2018-03-21 | 3895894 | ND |
| 2018-03-21 | 3895895 | ND |
| 2018-03-21 | 3895896 | 2.20 ppb |
| 2018-04-04 | 3905254 | ND |
| 2018-04-04 | 3905255 | ND |
| 2018-04-04 | 3905258 | ND |
| 2018-04-04 | 3905257 | ND |
| 2018-04-04 | 3905256 | ND |
| 2018-05-01 | 3926636 | ND |
| 2018-05-01 | 3926637 | ND |
| 2018-05-01 | 3926638 | ND |
| 2018-05-01 | 3926639 | ND |
| 2018-05-01 | 3926640 | ND |
| 2018-06-07 | 3957124 | ND |
| 2018-06-07 | 3957125 | ND |
| 2018-06-07 | 3957128 | ND |
| 2018-06-07 | 3957127 | ND |
| 2018-06-07 | 3957126 | ND |
| 2018-07-02 | 3980921 | ND |
| 2018-07-02 | 3980922 | ND |
| 2018-07-02 | 3980923 | ND |
| 2018-07-02 | 3980924 | ND |
| 2018-07-02 | 3980925 | 1.10 ppb |
| 2018-08-08 | 4017798 | ND |
| 2018-08-08 | 4017799 | ND |
| 2018-08-08 | 4017800 | 2.00 ppb |
| 2018-08-08 | 4017801 | ND |
| 2018-08-08 | 4017802 | 1.30 ppb |
| 2018-09-04 | 4047417 | ND |
| 2018-09-04 | 4047418 | 1.50 ppb |
| 2018-09-04 | 4047419 | 1.70 ppb |
| 2018-09-04 | 4047420 | 1.30 ppb |
| 2018-09-04 | 4047421 | 1.50 ppb |
| 2018-10-02 | 4078077 | ND |
| 2018-10-02 | 4078078 | ND |
| 2018-10-02 | 4078079 | 2.20 ppb |
| 2018-10-02 | 4078080 | ND |
| 2018-10-02 | 4078081 | 1.90 ppb |
| 2018-11-08 | 4117684 | ND |
| 2018-11-08 | 4117685 | ND |
| 2018-11-08 | 4117686 | ND |
| 2018-11-08 | 4117687 | ND |
| 2018-11-08 | 4117688 | 1.000 ppb |
| 2018-12-04 | 4141823 | ND |
| 2018-12-04 | 4141824 | ND |
| 2018-12-04 | 4141825 | ND |
| 2018-12-04 | 4141826 | ND |
| 2018-12-04 | 4141827 | ND |
| 2019-01-08 | 4169689 | ND |
| 2019-01-08 | 4169690 | ND |
| 2019-01-08 | 4169691 | 1.20 ppb |
| 2019-01-08 | 4169692 | ND |
| 2019-01-08 | 4169693 | ND |
| 2019-02-06 | 4191529 | ND |
| 2019-02-06 | 4191530 | ND |
| 2019-02-06 | 4191531 | 1.50 ppb |
| 2019-02-06 | 4191532 | ND |
| 2019-02-06 | 4191533 | ND |
| 2019-03-13 | 4227211 | ND |
| 2019-03-13 | 4227212 | ND |
| 2019-03-13 | 4227213 | ND |
| 2019-03-13 | 4227214 | ND |
| 2019-03-13 | 4227215 | ND |
| 2019-04-04 | 4250898 | ND |
| 2019-04-04 | 4250899 | ND |
| 2019-04-04 | 4250900 | 1.20 ppb |
| 2019-04-04 | 4250901 | 1.000 ppb |
| 2019-04-04 | 4250902 | ND |
| 2019-05-01 | 4280986 | ND |
| 2019-05-01 | 4280987 | ND |
| 2019-05-01 | 4280988 | 1.000 ppb |
| 2019-05-01 | 4280989 | 1.30 ppb |
| 2019-05-01 | 4280990 | ND |
| 2019-06-11 | 4322908 | ND |
| 2019-06-11 | 4322909 | ND |
| 2019-06-11 | 4322910 | 2.10 ppb |
| 2019-06-11 | 4322911 | ND |
| 2019-06-11 | 4322912 | 1.30 ppb |
| 2019-08-06 | 4379001 | 1.70 ppb |
| 2019-08-06 | 4379002 | ND |
| 2019-08-06 | 4379003 | 1.10 ppb |
| 2019-08-06 | 4379004 | ND |
| 2019-08-06 | 4379005 | 1.30 ppb |
| 2019-11-07 | 9K08042-01 | ND |
| 2019-11-07 | 9K08042-02 | ND |
| 2019-11-07 | 9K08042-03 | ND |
| 2019-11-07 | 9K08042-04 | ND |
| 2019-12-05 | 9L05126-02 | ND |