Bromide

City of Lawrence

Bromide is a naturally occurring element found in surface waters and groundwater. During drinking water treatment, bromide can combine with chlorine or other disinfectants, contributing to the formation of toxic tap water disinfection byproducts.

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Samples

Samples exceeding legal limit (MCL)

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	34.2 ppb	6	6	14.0 ppb - 52.0 ppb
2015	32.8 ppb	6	6	14.0 ppb - 49.0 ppb
2016	18.0 ppb	1	1	18.0 ppb
2017	20.5 ppb	4	3	ND - 36.0 ppb
2018	34.4 ppb	8	8	18.0 ppb - 61.0 ppb
2019	29.8 ppb	8	8	11.0 ppb - 84.0 ppb

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-12	FEB2014-GENCHEM	40.0 ppb
2014-02-12	FEB-14-GENCHEM	40.0 ppb
2014-05-21	MAY2014-GENCHEM	31.0 ppb
2014-05-21	MAY-14-GENCHEM	52.0 ppb
2014-08-13	AUG2014-GENCHEM	14.0 ppb
2014-08-13	AUG-14-GENCHEM	28.0 ppb
2015-02-04	FEB-15-GENCHEM	32.0 ppb
2015-02-04	FEB2015-GENCHEM	29.0 ppb
2015-05-06	MAY2015-GENCHEM	32.0 ppb
2015-05-06	MAY-15-GENCHEM	41.0 ppb
2015-11-03	NOV2015-GENCHEM	14.0 ppb
2015-11-03	NOV-15-GENCHEM	49.0 ppb
2016-05-04	MAY2016-GENCHEM	18.0 ppb
2017-05-09	2017-05-09-GEN	20.0 ppb
2017-08-15	2017-08-15-GEN	ND
2017-11-15	2017-11-15-GEN	26.0 ppb
2017-11-21	2017-12-21-GEN	36.0 ppb
2018-02-14	2018-02-14-GEN-T	56.0 ppb
2018-02-14	2018-02-14-GEN	18.0 ppb
2018-05-10	2018-05-10-GEN-T	18.0 ppb
2018-05-10	2018-05-10-GEN-T	19.0 ppb
2018-08-15	2018-08-5GEN-TP2	61.0 ppb
2018-08-15	2018-08-15-GEN-T	22.0 ppb
2018-11-01	2018-11-01-GEN-T	57.0 ppb
2018-11-01	2018-11-01-GEN-T	24.0 ppb
2019-02-14	2019-02-14 GEN T	84.0 ppb
2019-02-14	2019-02-14 GEN T	26.0 ppb
2019-05-14	2019-05-14-GEN-T	21.0 ppb
2019-05-14	2019-05-14-GEN-T	17.0 ppb
2019-08-07	2019-08-07-GEN-T	31.0 ppb
2019-08-07	2019-08-07-GEN-T	11.0 ppb
2019-11-18	2019-11-18-GEN-T	14.0 ppb
2019-11-18	2019-11-18-GEN-T	34.0 ppb