Monochloroacetic acid
Passaic Valley Water Commission
Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
288
Samples
0
Samples exceeding legal limit (MCL)
0
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 | 1.63 ppb | 48 | 47 | ND - 2.62 ppb |
| 2015 | 2.38 ppb | 48 | 48 | 1.20 ppb - 3.68 ppb |
| 2016 | 1.99 ppb | 48 | 47 | ND - 3.52 ppb |
| 2017 | 1.97 ppb | 48 | 47 | ND - 3.20 ppb |
| 2018 | 1.83 ppb | 48 | 35 | ND - 3.79 ppb |
| 2019 | 0.906 ppb | 48 | 12 | ND - 4.80 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 53 ppb
The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 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 system toxicity.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-03 | 030520-002 | 1.10 ppb |
| 2014-02-03 | 030522-002 | 1.41 ppb |
| 2014-02-03 | 030522-003 | 1.37 ppb |
| 2014-02-03 | 030522-001 | 2.04 ppb |
| 2014-02-03 | 030522-004 | 1.40 ppb |
| 2014-02-03 | 030520-001 | 2.07 ppb |
| 2014-02-04 | 030523-002 | 1.62 ppb |
| 2014-02-04 | 030523-001 | 2.19 ppb |
| 2014-02-04 | 030538-001 | 1.55 ppb |
| 2014-02-06 | 030544-003 | 1.30 ppb |
| 2014-02-06 | 030544-002 | 1.38 ppb |
| 2014-02-06 | 030544-001 | 1.20 ppb |
| 2014-05-05 | 030937-006 | 1.43 ppb |
| 2014-05-05 | 030937-002 | 1.13 ppb |
| 2014-05-05 | 030937-003 | 1.83 ppb |
| 2014-05-05 | 030937-001 | 1.83 ppb |
| 2014-05-05 | 030937-004 | 1.59 ppb |
| 2014-05-05 | 030937-005 | 1.44 ppb |
| 2014-05-06 | 030940-002 | 1.84 ppb |
| 2014-05-06 | 030940-001 | 1.80 ppb |
| 2014-05-06 | 030942-001 | 2.10 ppb |
| 2014-05-07 | 030969-003 | 2.62 ppb |
| 2014-05-07 | 030969-002 | 1.16 ppb |
| 2014-05-07 | 030969-001 | 1.46 ppb |
| 2014-08-04 | 031532-002 | 1.19 ppb |
| 2014-08-04 | 031530-002 | 2.25 ppb |
| 2014-08-04 | 031530-003 | 1.97 ppb |
| 2014-08-04 | 031530-001 | 2.19 ppb |
| 2014-08-04 | 031530-004 | 1.40 ppb |
| 2014-08-04 | 031532-001 | 2.14 ppb |
| 2014-08-05 | 031532-004 | 2.05 ppb |
| 2014-08-05 | 031532-003 | 2.14 ppb |
| 2014-08-05 | 031553-001 | 2.45 ppb |
| 2014-08-06 | 031560-003 | 1.46 ppb |
| 2014-08-06 | 031560-002 | 1.79 ppb |
| 2014-08-06 | 031560-001 | 1.10 ppb |
| 2014-11-03 | 14110511-06 | ND |
| 2014-11-03 | 14110511-02 | 1.57 ppb |
| 2014-11-03 | 14110511-03 | 1.28 ppb |
| 2014-11-03 | 14110511-01 | 1.72 ppb |
| 2014-11-03 | 14110511-04 | 1.97 ppb |
| 2014-11-03 | 14110511-05 | 1.52 ppb |
| 2014-11-04 | 14110513-02 | 1.72 ppb |
| 2014-11-04 | 14110513-01 | 1.42 ppb |
| 2014-11-04 | 14110714-01 | 2.35 ppb |
| 2014-11-05 | 14110723-03 | 1.19 ppb |
| 2014-11-05 | 14110723-02 | 1.09 ppb |
| 2014-11-05 | 14110723-01 | 1.30 ppb |
| 2015-02-03 | 15020611-07 | 1.51 ppb |
| 2015-02-03 | 15020611-02 | 1.81 ppb |
| 2015-02-03 | 15020611-03 | 2.44 ppb |
| 2015-02-03 | 15020611-01 | 1.45 ppb |
| 2015-02-03 | 15020611-04 | 1.33 ppb |
| 2015-02-03 | 15020611-09 | 2.00 ppb |
| 2015-02-03 | 15020611-08 | 2.18 ppb |
| 2015-02-03 | 15020611-05 | 1.79 ppb |
| 2015-02-03 | 15020611-06 | 1.71 ppb |
| 2015-02-04 | 15020611-12 | 1.72 ppb |
| 2015-02-04 | 15020611-11 | 2.66 ppb |
| 2015-02-04 | 15020611-10 | 2.00 ppb |
| 2015-05-04 | 15050812-11 | 2.45 ppb |
| 2015-05-04 | 15050812-02 | 2.16 ppb |
| 2015-05-04 | 15050812-03 | 3.50 ppb |
| 2015-05-04 | 15050812-01 | 2.42 ppb |
| 2015-05-04 | 15050812-04 | 3.19 ppb |
| 2015-05-04 | 15050812-12 | 2.00 ppb |
| 2015-05-05 | 15050812-07 | 2.55 ppb |
| 2015-05-05 | 15050812-06 | 2.38 ppb |
| 2015-05-05 | 15050812-05 | 1.89 ppb |
| 2015-05-06 | 15050812-10 | 2.18 ppb |
| 2015-05-06 | 15050812-09 | 2.35 ppb |
| 2015-05-06 | 15050812-08 | 2.60 ppb |
| 2015-08-03 | 15080713-01 | 1.78 ppb |
| 2015-08-03 | 15080714-02 | 2.16 ppb |
| 2015-08-03 | 15080714-03 | 1.96 ppb |
| 2015-08-03 | 15080714-01 | 2.95 ppb |
| 2015-08-03 | 15080714-04 | 1.66 ppb |
| 2015-08-03 | 15080713-02 | 3.42 ppb |
| 2015-08-04 | 15080717-02 | 2.66 ppb |
| 2015-08-04 | 15080717-01 | 1.32 ppb |
| 2015-08-04 | 15080717-03 | 2.73 ppb |
| 2015-08-05 | 15080724-03 | 3.07 ppb |
| 2015-08-05 | 15080724-02 | 2.58 ppb |
| 2015-08-05 | 15080724-01 | 2.37 ppb |
| 2015-11-02 | 15110614-05 | 2.36 ppb |
| 2015-11-02 | 15110614-02 | 3.06 ppb |
| 2015-11-02 | 15110614-03 | 2.94 ppb |
| 2015-11-02 | 15110614-01 | 3.68 ppb |
| 2015-11-02 | 15110614-04 | 3.58 ppb |
| 2015-11-02 | 15110614-06 | 3.56 ppb |
| 2015-11-03 | 15110614-09 | 2.16 ppb |
| 2015-11-03 | 15110614-08 | 1.20 ppb |
| 2015-11-03 | 15110614-07 | 2.81 ppb |
| 2015-11-04 | 15110614-12 | 3.42 ppb |
| 2015-11-04 | 15110614-11 | 2.09 ppb |
| 2015-11-04 | 15110614-10 | 2.68 ppb |
| 2016-02-01 | 16020302-01 | 1.93 ppb |
| 2016-02-01 | 16020302-04 | 1.79 ppb |
| 2016-02-01 | 16020302-05 | 1.22 ppb |
| 2016-02-01 | 16020302-03 | 2.15 ppb |
| 2016-02-01 | 16020302-06 | 1.76 ppb |
| 2016-02-01 | 16020302-02 | 2.06 ppb |
| 2016-02-02 | 16020807-02 | 2.26 ppb |
| 2016-02-02 | 16020807-01 | 2.07 ppb |
| 2016-02-02 | 16020807-03 | 1.02 ppb |
| 2016-02-03 | 16020814-03 | 1.24 ppb |
| 2016-02-03 | 16020814-02 | 1.65 ppb |
| 2016-02-03 | 16020814-01 | 1.62 ppb |
| 2016-05-02 | 16050607-01 | 2.98 ppb |
| 2016-05-02 | 16050607-04 | 2.72 ppb |
| 2016-05-02 | 16050607-05 | 3.22 ppb |
| 2016-05-02 | 16050607-03 | 2.61 ppb |
| 2016-05-02 | 16050607-06 | 2.16 ppb |
| 2016-05-02 | 16050607-02 | 1.74 ppb |
| 2016-05-03 | 16050607-08 | 2.06 ppb |
| 2016-05-03 | 16050607-07 | 2.06 ppb |
| 2016-05-03 | 16050607-09 | 2.74 ppb |
| 2016-05-04 | 16050607-12 | 1.95 ppb |
| 2016-05-04 | 16050607-11 | 2.80 ppb |
| 2016-05-04 | 16050607-10 | 1.96 ppb |
| 2016-08-01 | 16080521-05 | ND |
| 2016-08-01 | 16080521-02 | 1.22 ppb |
| 2016-08-01 | 16080521-03 | 2.31 ppb |
| 2016-08-01 | 16080521-01 | 1.91 ppb |
| 2016-08-01 | 16080521-04 | 1.68 ppb |
| 2016-08-01 | 16080521-06 | 1.96 ppb |
| 2016-08-02 | 16080521-08 | 1.32 ppb |
| 2016-08-02 | 16080521-07 | 2.01 ppb |
| 2016-08-02 | 16080521-09 | 1.75 ppb |
| 2016-08-03 | 16080521-12 | 1.65 ppb |
| 2016-08-03 | 16080521-11 | 3.04 ppb |
| 2016-08-03 | 16080521-10 | 1.82 ppb |
| 2016-11-01 | 16110419-03 | 2.10 ppb |
| 2016-11-01 | 16110419-04 | 2.12 ppb |
| 2016-11-01 | 16110419-02 | 1.92 ppb |
| 2016-11-01 | 16110419-05 | 3.52 ppb |
| 2016-11-01 | 16110419-01 | 2.08 ppb |
| 2016-11-02 | 16110419-06 | 1.36 ppb |
| 2016-11-02 | 16110419-07 | 2.08 ppb |
| 2016-11-03 | 16110419-10 | 1.73 ppb |
| 2016-11-03 | 16110419-12 | 2.36 ppb |
| 2016-11-03 | 16110419-11 | 2.75 ppb |
| 2016-11-03 | 16110419-09 | 1.14 ppb |
| 2016-11-03 | 16110419-08 | 2.06 ppb |
| 2017-02-01 | 17020314-03 | 2.17 ppb |
| 2017-02-01 | 17020314-04 | 1.47 ppb |
| 2017-02-01 | 17020314-02 | 1.86 ppb |
| 2017-02-01 | 17020314-05 | 1.48 ppb |
| 2017-02-01 | 17020314-01 | 1.68 ppb |
| 2017-02-02 | 17020314-10 | 1.63 ppb |
| 2017-02-02 | 17020314-12 | 1.43 ppb |
| 2017-02-02 | 17020314-09 | 1.47 ppb |
| 2017-02-02 | 17020314-08 | 1.27 ppb |
| 2017-02-02 | 17020314-07 | 2.44 ppb |
| 2017-02-02 | 17020314-11 | 1.70 ppb |
| 2017-02-02 | 17020314-06 | 1.97 ppb |
| 2017-05-01 | 17050304-01 | 1.77 ppb |
| 2017-05-01 | 17050304-04 | 2.10 ppb |
| 2017-05-01 | 17050304-05 | 1.95 ppb |
| 2017-05-01 | 17050304-03 | 2.22 ppb |
| 2017-05-01 | 17050304-06 | 2.74 ppb |
| 2017-05-01 | 17050304-02 | 2.32 ppb |
| 2017-05-02 | 17050304-08 | 1.28 ppb |
| 2017-05-02 | 17050304-07 | 2.65 ppb |
| 2017-05-02 | 17050304-09 | 1.03 ppb |
| 2017-05-03 | 17050522-03 | 1.57 ppb |
| 2017-05-03 | 17050522-02 | 1.89 ppb |
| 2017-05-03 | 17050522-01 | 2.16 ppb |
| 2017-08-01 | 17080414-02 | 2.51 ppb |
| 2017-08-01 | 17080414-03 | 1.38 ppb |
| 2017-08-01 | 17080414-01 | 3.18 ppb |
| 2017-08-01 | 17080414-04 | 2.37 ppb |
| 2017-08-01 | 17080414-05 | 2.53 ppb |
| 2017-08-02 | 17080414-06 | 2.49 ppb |
| 2017-08-02 | 17080414-07 | 2.16 ppb |
| 2017-08-03 | 17080414-10 | 2.10 ppb |
| 2017-08-03 | 17080414-12 | 1.96 ppb |
| 2017-08-03 | 17080414-11 | ND |
| 2017-08-03 | 17080414-09 | 3.20 ppb |
| 2017-08-03 | 17080414-08 | 1.67 ppb |
| 2017-11-01 | 17110304-02 | 2.71 ppb |
| 2017-11-01 | 17110304-03 | 1.70 ppb |
| 2017-11-01 | 17110304-01 | 1.70 ppb |
| 2017-11-01 | 17110304-04 | 1.60 ppb |
| 2017-11-01 | 17110304-05 | 1.81 ppb |
| 2017-11-02 | 17110304-06 | 2.64 ppb |
| 2017-11-02 | 17110304-07 | 1.57 ppb |
| 2017-11-03 | 17110304-10 | 2.08 ppb |
| 2017-11-03 | 17110304-12 | 3.11 ppb |
| 2017-11-03 | 17110304-11 | 1.90 ppb |
| 2017-11-03 | 17110304-09 | 2.18 ppb |
| 2017-11-03 | 17110304-08 | 1.64 ppb |
| 2018-02-01 | 18020214-01 | 2.56 ppb |
| 2018-02-02 | 18020214-11 | 2.09 ppb |
| 2018-02-02 | 18020214-06 | 2.22 ppb |
| 2018-02-02 | 18020214-02 | 2.24 ppb |
| 2018-02-02 | 18020214-07 | 2.40 ppb |
| 2018-02-02 | 18020214-05 | 2.87 ppb |
| 2018-02-02 | 18020214-08 | 2.63 ppb |
| 2018-02-02 | 18020214-10 | 2.54 ppb |
| 2018-02-02 | 18020214-09 | 2.33 ppb |
| 2018-02-02 | 18020214-04 | 2.10 ppb |
| 2018-02-02 | 18020214-03 | 2.76 ppb |
| 2018-02-02 | 18020214-12 | 3.16 ppb |
| 2018-05-01 | 18050412-12 | 3.06 ppb |
| 2018-05-02 | 18050412-02 | 2.45 ppb |
| 2018-05-02 | 18050412-03 | 2.46 ppb |
| 2018-05-02 | 18050412-01 | 3.03 ppb |
| 2018-05-02 | 18050412-04 | 2.78 ppb |
| 2018-05-03 | 18050412-05 | 2.36 ppb |
| 2018-05-03 | 18050412-11 | 2.74 ppb |
| 2018-05-03 | 18050412-08 | 2.61 ppb |
| 2018-05-03 | 18050412-07 | 2.47 ppb |
| 2018-05-03 | 18050412-10 | 3.79 ppb |
| 2018-05-03 | 18050412-09 | 2.72 ppb |
| 2018-05-03 | 18050412-06 | 2.94 ppb |
| 2018-08-01 | 18080315-01 | 2.30 ppb |
| 2018-08-02 | 18080315-03 | 1.93 ppb |
| 2018-08-02 | 18080315-04 | 1.70 ppb |
| 2018-08-02 | 18080315-02 | 2.33 ppb |
| 2018-08-02 | 18080315-05 | 2.86 ppb |
| 2018-08-03 | 18080315-06 | ND |
| 2018-08-03 | 18080315-12 | 3.69 ppb |
| 2018-08-03 | 18080315-09 | 1.53 ppb |
| 2018-08-03 | 18080315-08 | 1.08 ppb |
| 2018-08-03 | 18080315-11 | 2.97 ppb |
| 2018-08-03 | 18080315-10 | 1.30 ppb |
| 2018-08-03 | 18080315-07 | 2.82 ppb |
| 2018-11-01 | 18110207-01 | ND |
| 2018-11-02 | 18110207-07 | ND |
| 2018-11-02 | 18110207-10 | ND |
| 2018-11-02 | 18110207-04 | ND |
| 2018-11-02 | 18110207-11 | ND |
| 2018-11-02 | 18110207-09 | ND |
| 2018-11-02 | 18110207-12 | ND |
| 2018-11-02 | 18110207-06 | ND |
| 2018-11-02 | 18110207-05 | ND |
| 2018-11-02 | 18110207-03 | ND |
| 2018-11-02 | 18110207-02 | ND |
| 2018-11-02 | 18110207-08 | ND |
| 2019-02-01 | 3014231011 | 3.10 ppb |
| 2019-02-01 | 3014231010 | 3.50 ppb |
| 2019-02-01 | 3014231009 | 3.00 ppb |
| 2019-02-01 | 3014231008 | 3.90 ppb |
| 2019-02-01 | 3014231007 | 3.50 ppb |
| 2019-02-01 | 3014231006 | 3.50 ppb |
| 2019-02-01 | 3014231005 | 3.10 ppb |
| 2019-02-01 | 3014231004 | 4.30 ppb |
| 2019-02-01 | 3014231003 | 3.50 ppb |
| 2019-02-01 | 3014231002 | 3.50 ppb |
| 2019-02-01 | 3014231001 | 4.80 ppb |
| 2019-02-04 | 3014794001 | 3.80 ppb |
| 2019-05-01 | 3032199002 | ND |
| 2019-05-02 | 3032199011 | ND |
| 2019-05-02 | 3032199009 | ND |
| 2019-05-02 | 3032199008 | ND |
| 2019-05-03 | 3032199012 | ND |
| 2019-05-03 | 3032199010 | ND |
| 2019-05-03 | 3032199007 | ND |
| 2019-05-03 | 3032199006 | ND |
| 2019-05-03 | 3032199005 | ND |
| 2019-05-03 | 3032199004 | ND |
| 2019-05-03 | 3032199003 | ND |
| 2019-05-03 | 3032199001 | ND |
| 2019-08-01 | 3049463002 | ND |
| 2019-08-02 | 3049463012 | ND |
| 2019-08-02 | 3049463011 | ND |
| 2019-08-02 | 3049463010 | ND |
| 2019-08-02 | 3049463009 | ND |
| 2019-08-02 | 3049463008 | ND |
| 2019-08-02 | 3049463007 | ND |
| 2019-08-02 | 3049463006 | ND |
| 2019-08-02 | 3049463005 | ND |
| 2019-08-02 | 3049463004 | ND |
| 2019-08-02 | 3049463003 | ND |
| 2019-08-02 | 3049463001 | ND |
| 2019-11-01 | 3067544012 | ND |
| 2019-11-01 | 3067544011 | ND |
| 2019-11-01 | 3067544010 | ND |
| 2019-11-01 | 3067544009 | ND |
| 2019-11-01 | 3067544008 | ND |
| 2019-11-01 | 3067544007 | ND |
| 2019-11-01 | 3067544006 | ND |
| 2019-11-01 | 3067544005 | ND |
| 2019-11-01 | 3067544004 | ND |
| 2019-11-01 | 3067544003 | ND |
| 2019-11-01 | 3067544002 | ND |
| 2019-11-01 | 3067544001 | ND |