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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

City of Alexandria

NOTE: City of Alexandria purchases water from Fairfax County Water Authority which is required to test for bromoform. Sample information shown below was taken by Fairfax County Water Authority.

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.

 

356

Samples

0

Samples exceeding legal limit (MCL)

191

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.320 ppb3618ND - 0.920 ppb
20130.382 ppb4817ND - 1.67 ppb
20140.658 ppb12120.600 ppb - 0.800 ppb
20150.288 ppb167ND - 0.800 ppb
20160.338 ppb3216ND - 1.000 ppb
20170.0875 ppb325ND - 0.600 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

NOTE: City of Alexandria purchases water from Fairfax County Water Authority which is required to test for bromoform. Sample information shown below was taken by Fairfax County Water Authority.

Date Lab ID Result
2012-05-15FW12043002-14_TH0.570 ppb
2012-05-15FW12043002-07_TH0.550 ppb
2012-05-15FW12043002-03_TH0.520 ppb
2012-05-15FW12043002-02_TH0.520 ppb
2012-05-15FW12043002-01_TH0.510 ppb
2012-05-15FW12043002-06_TH0.510 ppb
2012-05-15FW12043002-08_TH0.500 ppb
2012-05-15FW12043002-09_TH0.500 ppb
2012-05-15FW12043002-11_TH0.500 ppb
2012-05-15FW12043002-10_THND
2012-05-15FW12043002-05_THND
2012-05-15FW12043002-04_THND
2012-08-14FW12080120-07_TH0.920 ppb
2012-08-14FW12080120-04_TH0.840 ppb
2012-08-14FW12080120-06_TH0.820 ppb
2012-08-14FW12080120-10_TH0.790 ppb
2012-08-14FW12080120-14_TH0.780 ppb
2012-08-14FW12080120-08_TH0.770 ppb
2012-08-14FW12080120-05_TH0.730 ppb
2012-08-14FW12080120-02_TH0.590 ppb
2012-08-14FW12080120-11_TH0.590 ppb
2012-08-14FW12080120-01_THND
2012-08-14FW12080120-09_THND
2012-08-14FW12080120-03_THND
2012-11-15FW12102514-10_THND
2012-11-15FW12102514-16_THND
2012-11-15FW12102514-14_THND
2012-11-15FW12102514-06_THND
2012-11-15FW12102514-11_THND
2012-11-15FW12102514-15_THND
2012-11-15FW12102514-07_THND
2012-11-15FW12102514-13_THND
2012-11-15FW12102514-08_THND
2012-11-15FW12102514-04_THND
2012-11-15FW12102514-05_THND
2012-11-15FW12102514-09_THND
2013-02-21FW13012811-09_THND
2013-02-21FW13012811-13_THND
2013-02-21FW13012811-04_THND
2013-02-21FW13012811-05_THND
2013-02-21FW13012811-06_THND
2013-02-21FW13012811-11_THND
2013-02-21FW13012811-16_THND
2013-02-21FW13012811-10_THND
2013-02-21FW13012811-14_THND
2013-02-21FW13012811-15_THND
2013-02-21FW13012811-07_THND
2013-02-21FW13012811-08_THND
2013-05-16FW13042632-07_THND
2013-05-16FW13042632-09_THND
2013-05-16FW13042632-11_THND
2013-05-16FW13042632-14_THND
2013-05-16FW13042632-04_THND
2013-05-16FW13042632-15_THND
2013-05-16FW13042632-05_THND
2013-05-16FW13042632-13_THND
2013-05-16FW13042632-08_THND
2013-05-16FW13042632-06_THND
2013-05-16FW13042632-16_THND
2013-05-16FW13042632-10_THND
2013-08-15FW13073116-11_TH1.17 ppb
2013-08-15FW13073116-04_TH0.980 ppb
2013-08-15FW13073116-06_TH0.810 ppb
2013-08-15FW13073116-05_TH0.750 ppb
2013-08-15FW13073116-10_TH0.700 ppb
2013-08-15FW13073116-09_TH0.690 ppb
2013-08-15FW13073116-07_TH0.680 ppb
2013-08-15FW13073116-15_TH0.540 ppb
2013-08-15FW13073116-14_TH0.520 ppb
2013-08-15FW13073116-13_THND
2013-08-15FW13073116-08_THND
2013-08-15FW13073116-16_THND
2013-11-21FW13102429-04_TH1.67 ppb
2013-11-21FW13102430-04_TH1.62 ppb
2013-11-21FW13102430-03_TH1.60 ppb
2013-11-21FW13102429-06_TH1.52 ppb
2013-11-21FW13102429-05_TH1.50 ppb
2013-11-21FW13102430-05_TH1.39 ppb
2013-11-21FW13102429-03_TH1.32 ppb
2013-11-21FW13102431-05_TH0.860 ppb
2013-11-21FW13102431-04_THND
2013-11-21FW13102431-06_THND
2013-11-21FW13102430-02_THND
2013-11-21FW13102431-03_THND
2014-02-20FW14013106-04_TH0.810 ppb
2014-02-20FW14013107-06_TH0.740 ppb
2014-02-20FW14013107-04_TH0.680 ppb
2014-02-20FW14013106-03_TH0.670 ppb
2014-02-20FW14013106-05_TH0.670 ppb
2014-02-20FW14013104-03_TH0.620 ppb
2014-02-20FW14013104-04_TH0.580 ppb
2014-02-20FW14013104-02_TH0.580 ppb
2014-02-20FW14013107-05_TH0.560 ppb
2014-02-20FW14013104-05_TH0.550 ppb
2014-02-20FW14013105-06_THND
2014-02-20FW14013105-03_THND
2014-02-20FW14013108-06_THND
2014-02-20FW14013108-05_THND
2014-02-20FW14013105-04_THND
2014-02-20FW14013107-03_THND
2014-02-20FW14013106-02_THND
2014-02-20FW14013108-03_THND
2014-02-20FW14013105-05_THND
2014-02-20FW14013108-04_THND
2014-05-15FW14042361-03_THND
2014-05-15FW14042361-06_THND
2014-05-15FW14042360-03_THND
2014-05-15FW14042403-05_THND
2014-05-15FW14042360-04_THND
2014-05-15FW14042403-02_THND
2014-05-15FW14042359-06_THND
2014-05-15FW14042362-06_THND
2014-05-15FW14042360-02_THND
2014-05-15FW14042359-04_THND
2014-05-15FW14042403-03_THND
2014-05-15FW14042362-04_THND
2014-05-15FW14042359-03_THND
2014-05-15FW14042359-05_THND
2014-05-15FW14042361-04_THND
2014-05-15FW14042403-04_THND
2014-05-15FW14042362-03_THND
2014-05-15FW14042362-05_THND
2014-05-15FW14042360-05_THND
2014-05-15FW14042361-05_THND
2014-08-19FW14072250-03_TH0.720 ppb
2014-08-19FW14072250-06_TH0.700 ppb
2014-08-19FW14072250-05_TH0.680 ppb
2014-08-19FW14072250-04_TH0.670 ppb
2014-08-19FW14072252-05_THND
2014-08-19FW14072252-06_THND
2014-08-19FW14072252-03_THND
2014-08-19FW14072252-04_THND
2014-08-20FW14072251-04_TH0.750 ppb
2014-08-20FW14072251-05_TH0.720 ppb
2014-08-20FW14072251-03_TH0.660 ppb
2014-08-20FW14072251-02_THND
2014-08-21FW14072254-03_TH0.790 ppb
2014-08-21FW14072254-04_TH0.780 ppb
2014-08-21FW14072254-05_TH0.750 ppb
2014-08-21FW14072254-02_TH0.740 ppb
2014-08-21FW14072253-05_THND
2014-08-21FW14072253-03_THND
2014-08-21FW14072253-04_THND
2014-08-21FW14072253-06_THND
2014-11-20FW141022072-06_T1.15 ppb
2014-11-20FW141022071-04_T1.14 ppb
2014-11-20FW141022072-04_T1.10 ppb
2014-11-20FW141022072-05_T1.07 ppb
2014-11-20FW141022069-04_T1.07 ppb
2014-11-20FW141022071-05_T1.07 ppb
2014-11-20FW141022069-05_T1.04 ppb
2014-11-20FW141022071-03_T1.01 ppb
2014-11-20FW141022069-02_T1.000 ppb
2014-11-20FW141022069-03_T0.950 ppb
2014-11-20FW141022072-03_T0.900 ppb
2014-11-20FW141022073-04_T0.640 ppb
2014-11-20FW141022073-05_T0.620 ppb
2014-11-20FW141022073-06_T0.560 ppb
2014-11-20FW141022073-03_T0.550 ppb
2014-11-20FW141022071-02_T0.540 ppb
2014-11-20FW141022070-04_TND
2014-11-20FW141022070-05_TND
2014-11-20FW141022070-06_TND
2014-11-20FW141022070-03_TND
2015-02-1900125-FAIRFAX CO0.730 ppb
2015-02-1900125-FAIRFAX CO0.710 ppb
2015-02-1900125-FAIRFAX CO0.660 ppb
2015-02-1900125-FAIRFAX CO0.630 ppb
2015-02-1900125-FAIRFAX CO0.610 ppb
2015-02-1900125-FAIRFAX CO0.580 ppb
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-1900125-FAIRFAX COND
2015-02-2300125-FAIRFAX CO0.680 ppb
2015-02-2300125-FAIRFAX CO0.570 ppb
2015-05-2100125-FAIRFAX CO0.720 ppb
2015-05-2100125-FAIRFAX CO0.680 ppb
2015-05-2100125-FAIRFAX CO0.680 ppb
2015-05-2100125-FAIRFAX CO0.630 ppb
2015-05-2100125-FAIRFAX CO0.610 ppb
2015-05-2100125-FAIRFAX CO0.610 ppb
2015-05-2100125-FAIRFAX CO0.580 ppb
2015-05-2100125-FAIRFAX CO0.560 ppb
2015-05-2100125-FAIRFAX CO0.550 ppb
2015-05-2100125-FAIRFAX CO0.550 ppb
2015-05-2100125-FAIRFAX CO0.510 ppb
2015-05-2100125-FAIRFAX COND
2015-05-2100125-FAIRFAX COND
2015-05-2100125-FAIRFAX COND
2015-05-2100125-FAIRFAX COND
2015-05-2100125-FAIRFAX COND
2015-08-2000125-FAIRFAX CO1.41 ppb
2015-08-2000125-FAIRFAX CO1.40 ppb
2015-08-2000125-FAIRFAX CO1.38 ppb
2015-08-2000125-FAIRFAX CO1.37 ppb
2015-08-2000125-FAIRFAX CO1.36 ppb
2015-08-2000125-FAIRFAX CO1.28 ppb
2015-08-2000125-FAIRFAX CO1.23 ppb
2015-08-2000125-FAIRFAX CO1.04 ppb
2015-08-2000125-FAIRFAX CO1.01 ppb
2015-08-2000125-FAIRFAX CO0.920 ppb
2015-08-2000125-FAIRFAX CO0.920 ppb
2015-08-2000125-FAIRFAX CO0.730 ppb
2015-08-2000125-FAIRFAX CO0.690 ppb
2015-08-2000125-FAIRFAX CO0.560 ppb
2015-08-2000125-FAIRFAX COND
2015-08-2000125-FAIRFAX COND
2015-11-2000125-FAIRFAX CO0.850 ppb
2015-11-2000125-FAIRFAX CO0.850 ppb
2015-11-2000125-FAIRFAX CO0.840 ppb
2015-11-2000125-FAIRFAX CO0.820 ppb
2015-11-2000125-FAIRFAX CO0.790 ppb
2015-11-2000125-FAIRFAX CO0.730 ppb
2015-11-2000125-FAIRFAX CO0.660 ppb
2015-11-2000125-FAIRFAX CO0.600 ppb
2015-11-2000125-FAIRFAX CO0.600 ppb
2015-11-2000125-FAIRFAX CO0.510 ppb
2015-11-2000125-FAIRFAX CO0.500 ppb
2015-11-2000125-FAIRFAX COND
2015-11-2000125-FAIRFAX COND
2015-11-2000125-FAIRFAX COND
2015-11-2000125-FAIRFAX COND
2015-11-2000125-FAIRFAX COND
2016-02-18FW160107018-03_T0.610 ppb
2016-02-18FW160107018-05_T0.610 ppb
2016-02-18FW160107019-02_T0.580 ppb
2016-02-18FW160107018-04_T0.540 ppb
2016-02-18FW160107019-05_T0.540 ppb
2016-02-18FW160107019-04_T0.530 ppb
2016-02-18FW160107019-03_T0.520 ppb
2016-02-18FW160107017-02_TND
2016-02-18FW160107017-05_TND
2016-02-18FW160107017-06_TND
2016-02-18FW160107018-06_TND
2016-02-18FW160107019-06_TND
2016-02-18FW160107020-03_TND
2016-02-18FW160107020-04_TND
2016-02-18FW160107020-05_TND
2016-02-18FW160107020-06_TND
2016-05-19FW160422081-06_T0.850 ppb
2016-05-19FW160422081-03_T0.770 ppb
2016-05-19FW160422081-04_T0.760 ppb
2016-05-19FW160422019-02_T0.640 ppb
2016-05-19FW160422018-06_T0.620 ppb
2016-05-19FW160422019-05_T0.570 ppb
2016-05-19FW160422018-03_T0.530 ppb
2016-05-19FW160422019-04_T0.530 ppb
2016-05-19FW160422018-05_T0.510 ppb
2016-05-19FW160422018-04_TND
2016-05-19FW160422019-03_TND
2016-05-19FW160422019-06_TND
2016-05-19FW160422020-02_TND
2016-05-19FW160422020-05_TND
2016-05-19FW160422020-06_TND
2016-05-19FW160422081-05_TND
2016-08-16FW160725088-05_T1.05 ppb
2016-08-16FW160725088-04_T1.04 ppb
2016-08-16FW160725088-03_T0.910 ppb
2016-08-16FW160725088-06_T0.870 ppb
2016-08-17FW160725089-05_T0.730 ppb
2016-08-17FW160725089-06_T0.710 ppb
2016-08-17FW160725089-04_T0.660 ppb
2016-08-17FW160725089-03_T0.500 ppb
2016-08-18FW160725087-05_T1.17 ppb
2016-08-18FW160725087-03_T1.07 ppb
2016-08-18FW160725087-02_T1.05 ppb
2016-08-18FW160725087-04_T1.04 ppb
2016-08-18FW160725087-06_T0.700 ppb
2016-08-18FW160725086-05_T0.610 ppb
2016-08-18FW160725086-06_T0.570 ppb
2016-08-18FW160725086-02_TND
2016-11-17FW161018092-05_T1.67 ppb
2016-11-17FW161018091-03_T1.60 ppb
2016-11-17FW161018088-06_T1.54 ppb
2016-11-17FW161018091-02_T1.45 ppb
2016-11-17FW161018088-05_T1.40 ppb
2016-11-17FW161018092-03_T1.39 ppb
2016-11-17FW161018091-05_T1.38 ppb
2016-11-17FW161018092-04_T1.20 ppb
2016-11-17FW161018092-06_T1.17 ppb
2016-11-17FW161018093-06_T1.06 ppb
2016-11-17FW161018091-04_T1.000 ppb
2016-11-17FW161018088-02_T0.800 ppb
2016-11-17FW161018091-06_T0.790 ppb
2016-11-17FW161018093-03_T0.690 ppb
2016-11-17FW161018093-05_T0.660 ppb
2016-11-17FW161018093-04_T0.640 ppb
2017-02-15FW170126080-03_T0.720 ppb
2017-02-15FW170126080-05_T0.710 ppb
2017-02-15FW170126080-04_T0.670 ppb
2017-02-15FW170126080-06_T0.670 ppb
2017-02-16FW170126079-05_T0.830 ppb
2017-02-16FW170126079-03_T0.750 ppb
2017-02-16FW170126079-02_T0.730 ppb
2017-02-16FW170126079-04_T0.640 ppb
2017-02-16FW170126078-06_T0.560 ppb
2017-02-16FW170126078-02_T0.550 ppb
2017-02-16FW170126078-05_T0.520 ppb
2017-02-16FW170126081-06_T0.520 ppb
2017-02-16FW170126079-06_TND
2017-02-16FW170126081-03_TND
2017-02-16FW170126081-04_TND
2017-02-16FW170126081-05_TND
2017-05-18FW170426068-03_TND
2017-05-18FW170426068-04_TND
2017-05-18FW170426068-05_TND
2017-05-18FW170426068-06_TND
2017-05-18FW170426069-02_TND
2017-05-18FW170426069-03_TND
2017-05-18FW170426069-04_TND
2017-05-18FW170426069-05_TND
2017-05-18FW170426069-06_TND
2017-05-18FW170426070-03_TND
2017-05-18FW170426070-04_TND
2017-05-18FW170426070-05_TND
2017-05-18FW170426070-06_TND
2017-05-18FW170426071-02_TND
2017-05-18FW170426071-05_TND
2017-05-18FW170426071-06_TND
2017-08-17FW170710008-05_T1.07 ppb
2017-08-17FW170710007-04_T0.800 ppb
2017-08-17FW170710008-03_T0.800 ppb
2017-08-17FW170710007-03_T0.780 ppb
2017-08-17FW170710006-05_T0.770 ppb
2017-08-17FW170710008-02_T0.770 ppb
2017-08-17FW170710007-05_T0.690 ppb
2017-08-17FW170710007-06_T0.660 ppb
2017-08-17FW170710006-06_T0.590 ppb
2017-08-17FW170710009-06_T0.590 ppb
2017-08-17FW170710006-02_TND
2017-08-17FW170710008-04_TND
2017-08-17FW170710008-06_TND
2017-08-17FW170710009-03_TND
2017-08-17FW170710009-04_TND
2017-08-17FW170710009-05_TND
2017-11-15FW171025015-05_T0.640 ppb
2017-11-15FW171025015-06_T0.630 ppb
2017-11-15FW171025015-03_T0.600 ppb
2017-11-15FW171025015-02_TND
2017-11-15FW171025015-04_TND
2017-11-16FW171025016-06_T1.56 ppb
2017-11-16FW171025016-04_T1.55 ppb
2017-11-16FW171025017-06_T0.930 ppb
2017-11-16FW171025016-05_T0.740 ppb
2017-11-16FW171025017-05_T0.670 ppb
2017-11-16FW171025017-03_T0.640 ppb
2017-11-16FW171025017-04_T0.640 ppb
2017-11-16FW171025016-03_T0.540 ppb
2017-11-16FW171025014-02_TND
2017-11-16FW171025014-05_TND
2017-11-16FW171025014-06_TND