Monochloroacetic acid
Las Vegas Valley Water District
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.
384
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 | 1.33 ppb | 64 | 36 | ND - 3.00 ppb |
| 2015 | 0.552 ppb | 64 | 16 | ND - 2.50 ppb |
| 2016 | 0.639 ppb | 64 | 18 | ND - 2.60 ppb |
| 2017 | 0.0313 ppb | 64 | 1 | ND - 2.00 ppb |
| 2018 | 0.848 ppb | 64 | 22 | ND - 3.00 ppb |
| 2019 | 1.03 ppb | 64 | 28 | ND - 3.10 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 |
|---|---|---|
| 2014-01-02 | 13120437-001 | ND |
| 2014-01-02 | 13120437-002 | ND |
| 2014-01-02 | 13120437-003 | ND |
| 2014-01-02 | 13120437-004 | ND |
| 2014-01-02 | 13120437-005 | ND |
| 2014-01-02 | 13120437-006 | ND |
| 2014-01-02 | 13120437-007 | ND |
| 2014-01-02 | 13120437-008 | ND |
| 2014-01-02 | 13120437-009 | ND |
| 2014-01-02 | 13120437-010 | ND |
| 2014-01-02 | 13120437-011 | ND |
| 2014-01-02 | 13120437-012 | ND |
| 2014-01-02 | 13120437-013 | ND |
| 2014-01-02 | 13120437-014 | ND |
| 2014-01-02 | 13120437-015 | ND |
| 2014-01-02 | 13120437-016 | ND |
| 2014-04-02 | 14040007-001 | ND |
| 2014-04-02 | 14040007-002 | ND |
| 2014-04-02 | 14040007-003 | 2.30 ppb |
| 2014-04-02 | 14040007-004 | ND |
| 2014-04-02 | 14040007-005 | 2.00 ppb |
| 2014-04-02 | 14040007-006 | 2.20 ppb |
| 2014-04-02 | 14040007-007 | 2.10 ppb |
| 2014-04-02 | 14040007-008 | 2.10 ppb |
| 2014-04-02 | 14040007-009 | 2.20 ppb |
| 2014-04-02 | 14040007-011 | 2.20 ppb |
| 2014-04-02 | 14040007-012 | 2.10 ppb |
| 2014-04-02 | 14040007-013 | 2.00 ppb |
| 2014-04-02 | 14040007-014 | 2.20 ppb |
| 2014-04-02 | 14040007-015 | ND |
| 2014-04-02 | 14040007-016 | ND |
| 2014-04-22 | 14040356-010 | 2.00 ppb |
| 2014-07-03 | 14070024-001 | ND |
| 2014-07-03 | 14070024-002 | ND |
| 2014-07-03 | 14070024-003 | 2.10 ppb |
| 2014-07-03 | 14070024-004 | ND |
| 2014-07-03 | 14070024-005 | ND |
| 2014-07-03 | 14070024-006 | 2.40 ppb |
| 2014-07-03 | 14070024-007 | 2.70 ppb |
| 2014-07-03 | 14070024-008 | 2.80 ppb |
| 2014-07-03 | 14070024-009 | 2.30 ppb |
| 2014-07-03 | 14070024-010 | 2.50 ppb |
| 2014-07-03 | 14070024-011 | 2.00 ppb |
| 2014-07-03 | 14070024-012 | 2.00 ppb |
| 2014-07-03 | 14070024-013 | 2.70 ppb |
| 2014-07-03 | 14070024-014 | 2.50 ppb |
| 2014-07-03 | 14070024-015 | 2.10 ppb |
| 2014-07-03 | 14070024-016 | ND |
| 2014-10-06 | 14100026-001 | 2.50 ppb |
| 2014-10-06 | 14100026-002 | 2.60 ppb |
| 2014-10-06 | 14100026-003 | 2.80 ppb |
| 2014-10-06 | 14100026-004 | 2.30 ppb |
| 2014-10-06 | 14100026-005 | 2.80 ppb |
| 2014-10-06 | 14100026-006 | ND |
| 2014-10-06 | 14100026-007 | 3.00 ppb |
| 2014-10-06 | 14100026-008 | 2.90 ppb |
| 2014-10-06 | 14100026-009 | 2.90 ppb |
| 2014-10-06 | 14100026-010 | 2.30 ppb |
| 2014-10-06 | 14100026-011 | 2.60 ppb |
| 2014-10-06 | 14100026-012 | 2.30 ppb |
| 2014-10-06 | 14100026-013 | 2.60 ppb |
| 2014-10-06 | 14100026-014 | 2.20 ppb |
| 2014-10-06 | 14100026-015 | 2.10 ppb |
| 2014-10-06 | 14100026-016 | ND |
| 2015-01-07 | 15010064-001 | ND |
| 2015-01-07 | 15010064-002 | ND |
| 2015-01-07 | 15010064-003 | ND |
| 2015-01-07 | 15010064-004 | ND |
| 2015-01-07 | 15010064-005 | ND |
| 2015-01-07 | 15010064-006 | ND |
| 2015-01-07 | 15010064-007 | 2.40 ppb |
| 2015-01-07 | 15010064-008 | 2.50 ppb |
| 2015-01-07 | 15010064-009 | 2.10 ppb |
| 2015-01-07 | 15010064-010 | ND |
| 2015-01-07 | 15010064-011 | 2.30 ppb |
| 2015-01-07 | 15010064-012 | 2.30 ppb |
| 2015-01-07 | 15010064-013 | ND |
| 2015-01-07 | 15010064-014 | 2.00 ppb |
| 2015-01-07 | 15010064-015 | ND |
| 2015-01-07 | 15010064-016 | ND |
| 2015-04-06 | 15040032-001 | ND |
| 2015-04-06 | 15040032-002 | ND |
| 2015-04-06 | 15040032-003 | ND |
| 2015-04-06 | 15040032-004 | ND |
| 2015-04-06 | 15040032-005 | ND |
| 2015-04-06 | 15040032-006 | 2.10 ppb |
| 2015-04-06 | 15040032-007 | 2.10 ppb |
| 2015-04-06 | 15040032-008 | 2.10 ppb |
| 2015-04-06 | 15040032-009 | 2.30 ppb |
| 2015-04-06 | 15040032-010 | 2.40 ppb |
| 2015-04-06 | 15040032-011 | 2.00 ppb |
| 2015-04-06 | 15040032-012 | ND |
| 2015-04-06 | 15040032-013 | ND |
| 2015-04-06 | 15040032-014 | ND |
| 2015-04-06 | 15040032-015 | ND |
| 2015-04-06 | 15040032-016 | ND |
| 2015-07-02 | 15070001-001 | ND |
| 2015-07-02 | 15070001-002 | ND |
| 2015-07-02 | 15070001-003 | ND |
| 2015-07-02 | 15070001-004 | ND |
| 2015-07-02 | 15070001-005 | ND |
| 2015-07-02 | 15070001-006 | ND |
| 2015-07-02 | 15070001-007 | ND |
| 2015-07-02 | 15070001-008 | ND |
| 2015-07-02 | 15070001-009 | ND |
| 2015-07-02 | 15070001-010 | ND |
| 2015-07-02 | 15070001-011 | ND |
| 2015-07-02 | 15070001-012 | ND |
| 2015-07-02 | 15070001-013 | ND |
| 2015-07-02 | 15070001-014 | ND |
| 2015-07-02 | 15070001-015 | ND |
| 2015-07-02 | 15070001-016 | ND |
| 2015-10-01 | 15090550-001 | ND |
| 2015-10-01 | 15090550-002 | ND |
| 2015-10-01 | 15090550-003 | 2.40 ppb |
| 2015-10-01 | 15090550-004 | ND |
| 2015-10-01 | 15090550-005 | 2.10 ppb |
| 2015-10-01 | 15090550-006 | ND |
| 2015-10-01 | 15090550-007 | ND |
| 2015-10-01 | 15090550-008 | ND |
| 2015-10-01 | 15090550-009 | ND |
| 2015-10-01 | 15090550-010 | ND |
| 2015-10-01 | 15090550-011 | 2.00 ppb |
| 2015-10-01 | 15090550-012 | ND |
| 2015-10-01 | 15090550-013 | 2.20 ppb |
| 2015-10-01 | 15090550-014 | ND |
| 2015-10-01 | 15090550-015 | ND |
| 2015-10-01 | 15090550-016 | ND |
| 2016-01-06 | 16010030-001 | ND |
| 2016-01-06 | 16010030-002 | 2.00 ppb |
| 2016-01-06 | 16010030-003 | ND |
| 2016-01-06 | 16010030-004 | ND |
| 2016-01-06 | 16010030-005 | ND |
| 2016-01-06 | 16010030-006 | 2.50 ppb |
| 2016-01-06 | 16010030-007 | 2.10 ppb |
| 2016-01-06 | 16010030-008 | 2.60 ppb |
| 2016-01-06 | 16010030-009 | 2.60 ppb |
| 2016-01-06 | 16010030-010 | 2.30 ppb |
| 2016-01-06 | 16010030-011 | 2.20 ppb |
| 2016-01-06 | 16010030-012 | 2.10 ppb |
| 2016-01-06 | 16010030-013 | ND |
| 2016-01-06 | 16010030-014 | ND |
| 2016-01-06 | 16010030-015 | ND |
| 2016-01-06 | 16010030-016 | ND |
| 2016-04-07 | 16040085-001 | ND |
| 2016-04-07 | 16040085-002 | 2.20 ppb |
| 2016-04-07 | 16040085-003 | 2.50 ppb |
| 2016-04-07 | 16040085-004 | ND |
| 2016-04-07 | 16040085-005 | ND |
| 2016-04-07 | 16040085-006 | 2.40 ppb |
| 2016-04-07 | 16040085-007 | ND |
| 2016-04-07 | 16040085-008 | 2.50 ppb |
| 2016-04-07 | 16040085-009 | ND |
| 2016-04-07 | 16040085-010 | 2.50 ppb |
| 2016-04-07 | 16040085-011 | 2.20 ppb |
| 2016-04-07 | 16040085-012 | 2.10 ppb |
| 2016-04-07 | 16040085-013 | 2.10 ppb |
| 2016-04-07 | 16040085-014 | ND |
| 2016-04-07 | 16040085-015 | 2.00 ppb |
| 2016-04-07 | 16040085-016 | 2.00 ppb |
| 2016-07-07 | S1601051009 | ND |
| 2016-07-07 | S1601051011 | ND |
| 2016-07-07 | S1601051012 | ND |
| 2016-07-07 | S1601051013 | ND |
| 2016-07-07 | S1601051014 | ND |
| 2016-07-07 | S1601051015 | ND |
| 2016-07-07 | S1601051016 | ND |
| 2016-07-07 | S1601051010 | ND |
| 2016-07-27 | S1602459001 | ND |
| 2016-07-27 | S1602459002 | ND |
| 2016-07-27 | S1602459003 | ND |
| 2016-07-27 | S1602459004 | ND |
| 2016-07-27 | S1602459005 | ND |
| 2016-07-27 | S1602459006 | ND |
| 2016-07-27 | S1602459007 | ND |
| 2016-07-27 | S1602459008 | ND |
| 2016-10-06 | S1603881001 | ND |
| 2016-10-06 | S1603881002 | ND |
| 2016-10-06 | S1603881003 | ND |
| 2016-10-06 | S1603881004 | ND |
| 2016-10-06 | S1603881005 | ND |
| 2016-10-06 | S1603881006 | ND |
| 2016-10-06 | S1603881007 | ND |
| 2016-10-06 | S1603881008 | ND |
| 2016-10-06 | S1603881009 | ND |
| 2016-10-06 | S1603881010 | ND |
| 2016-10-06 | S1603881012 | ND |
| 2016-10-06 | S1603881013 | ND |
| 2016-10-06 | S1603881014 | ND |
| 2016-10-06 | S1603881015 | ND |
| 2016-10-06 | S1603881016 | ND |
| 2016-10-06 | S603881011 | ND |
| 2017-01-05 | S1606791001 | ND |
| 2017-01-05 | S1606791002 | ND |
| 2017-01-05 | S1606791003 | ND |
| 2017-01-05 | S1606791004 | ND |
| 2017-01-05 | S1606791005 | ND |
| 2017-01-05 | S1606791006 | ND |
| 2017-01-05 | S1606791007 | ND |
| 2017-01-05 | S1606791008 | ND |
| 2017-01-05 | S1606791009 | ND |
| 2017-01-05 | S1606791010 | ND |
| 2017-01-05 | S1606791011 | ND |
| 2017-01-05 | S1606791012 | ND |
| 2017-01-05 | S1606791013 | ND |
| 2017-01-05 | S1606791014 | ND |
| 2017-01-05 | S1606791016 | ND |
| 2017-01-05 | S160691015 | ND |
| 2017-04-06 | S1701661001 | ND |
| 2017-04-06 | S1701661002 | ND |
| 2017-04-06 | S1701661003 | ND |
| 2017-04-06 | S1701661004 | ND |
| 2017-04-06 | S1701661005 | ND |
| 2017-04-06 | S1701661006 | ND |
| 2017-04-06 | S1701661007 | ND |
| 2017-04-06 | S1701661008 | ND |
| 2017-04-06 | S1701661009 | ND |
| 2017-04-06 | S1701661010 | ND |
| 2017-04-06 | S1701661011 | ND |
| 2017-04-06 | S1701661012 | ND |
| 2017-04-06 | S1701661013 | ND |
| 2017-04-06 | S1701661014 | ND |
| 2017-04-06 | S1701661015 | ND |
| 2017-04-06 | S1701661016 | ND |
| 2017-07-06 | S1702994001 | ND |
| 2017-07-06 | S1702994002 | ND |
| 2017-07-06 | S1702994003 | ND |
| 2017-07-06 | S1702994004 | ND |
| 2017-07-06 | S1702994005 | ND |
| 2017-07-06 | S1702994006 | ND |
| 2017-07-06 | S1702994007 | ND |
| 2017-07-06 | S1702994008 | ND |
| 2017-07-06 | S1702994009 | ND |
| 2017-07-06 | S1702994010 | ND |
| 2017-07-06 | S1702994011 | ND |
| 2017-07-06 | S1702994012 | ND |
| 2017-07-06 | S1702994013 | 2.00 ppb |
| 2017-07-06 | S1702994014 | ND |
| 2017-07-06 | S1702994015 | ND |
| 2017-07-06 | S1702994016 | ND |
| 2017-10-04 | S1706363001 | ND |
| 2017-10-04 | S1706363002 | ND |
| 2017-10-04 | S1706363003 | ND |
| 2017-10-04 | S1706363004 | ND |
| 2017-10-04 | S1706363005 | ND |
| 2017-10-04 | S1706363006 | ND |
| 2017-10-04 | S1706363007 | ND |
| 2017-10-04 | S1706363008 | ND |
| 2017-10-04 | S1706363009 | ND |
| 2017-10-04 | S1706363010 | ND |
| 2017-10-04 | S1706363011 | ND |
| 2017-10-04 | S1706363012 | ND |
| 2017-10-04 | S1706363013 | ND |
| 2017-10-04 | S1706363014 | ND |
| 2017-10-04 | S1706363015 | ND |
| 2017-10-04 | S1706363016 | ND |
| 2018-01-03 | S1708615001 | ND |
| 2018-01-03 | S1708615002 | ND |
| 2018-01-03 | S1708615003 | 2.90 ppb |
| 2018-01-03 | S1708615004 | 2.30 ppb |
| 2018-01-03 | S1708615005 | ND |
| 2018-01-03 | S1708615006 | 2.70 ppb |
| 2018-01-03 | S1708615007 | 2.50 ppb |
| 2018-01-03 | S1708615008 | 2.70 ppb |
| 2018-01-03 | S1708615009 | 2.90 ppb |
| 2018-01-03 | S1708615010 | 2.70 ppb |
| 2018-01-03 | S1708615011 | 2.30 ppb |
| 2018-01-03 | S1708615012 | 2.50 ppb |
| 2018-01-03 | S1708615013 | ND |
| 2018-01-03 | S1708615014 | ND |
| 2018-01-03 | S1708615015 | ND |
| 2018-01-03 | S1708615016 | 2.10 ppb |
| 2018-04-02 | S1801759001 | ND |
| 2018-04-02 | S1801759002 | ND |
| 2018-04-02 | S1801759003 | 2.20 ppb |
| 2018-04-02 | S1801759004 | ND |
| 2018-04-02 | S1801759005 | 2.00 ppb |
| 2018-04-02 | S1801759006 | 3.00 ppb |
| 2018-04-02 | S1801759007 | 2.10 ppb |
| 2018-04-02 | S1801759008 | 2.80 ppb |
| 2018-04-02 | S1801759009 | 2.80 ppb |
| 2018-04-02 | S1801759010 | 2.60 ppb |
| 2018-04-02 | S1801759011 | 2.20 ppb |
| 2018-04-02 | S1801759012 | 2.40 ppb |
| 2018-04-02 | S1801759013 | 2.00 ppb |
| 2018-04-02 | S1801759014 | 2.40 ppb |
| 2018-04-02 | S1801759015 | 2.20 ppb |
| 2018-04-02 | S1801759016 | ND |
| 2018-07-03 | S1802292001 | ND |
| 2018-07-03 | S1802292002 | ND |
| 2018-07-03 | S1802292003 | ND |
| 2018-07-03 | S1802292004 | ND |
| 2018-07-03 | S1802292005 | ND |
| 2018-07-03 | S1802292006 | ND |
| 2018-07-03 | S1802292007 | ND |
| 2018-07-03 | S1802292008 | ND |
| 2018-07-03 | S1802292009 | ND |
| 2018-07-03 | S1802292010 | ND |
| 2018-07-03 | S1802292011 | ND |
| 2018-07-03 | S1802292012 | ND |
| 2018-07-03 | S1802292013 | ND |
| 2018-07-03 | S1802292014 | ND |
| 2018-07-03 | S1802292015 | ND |
| 2018-07-03 | S1802292016 | ND |
| 2018-10-03 | S1804421001 | ND |
| 2018-10-03 | S1804421002 | ND |
| 2018-10-03 | S1804421003 | ND |
| 2018-10-03 | S1804421004 | ND |
| 2018-10-03 | S1804421005 | ND |
| 2018-10-03 | S1804421006 | ND |
| 2018-10-03 | S1804421007 | ND |
| 2018-10-03 | S1804421008 | ND |
| 2018-10-03 | S1804421009 | ND |
| 2018-10-03 | S1804421010 | ND |
| 2018-10-03 | S1804421011 | ND |
| 2018-10-03 | S1804421012 | ND |
| 2018-10-03 | S1804421013 | ND |
| 2018-10-03 | S1804421014 | ND |
| 2018-10-03 | S1804421015 | ND |
| 2018-10-03 | S1804421016 | ND |
| 2019-01-09 | S1806790001 | ND |
| 2019-01-09 | S1806790002 | ND |
| 2019-01-09 | S1806790003 | 2.50 ppb |
| 2019-01-09 | S1806790004 | 2.00 ppb |
| 2019-01-09 | S1806790005 | 2.30 ppb |
| 2019-01-09 | S1806790006 | 2.40 ppb |
| 2019-01-09 | S1806790007 | ND |
| 2019-01-09 | S1806790008 | 2.30 ppb |
| 2019-01-09 | S1806790009 | 2.40 ppb |
| 2019-01-09 | S1806790010 | 2.30 ppb |
| 2019-01-09 | S1806790011 | 2.20 ppb |
| 2019-01-09 | S1806790012 | ND |
| 2019-01-09 | S1806790013 | ND |
| 2019-01-09 | S1806790014 | ND |
| 2019-01-09 | S1806790015 | ND |
| 2019-01-09 | S1806790016 | ND |
| 2019-04-03 | S1904044001 | ND |
| 2019-04-03 | S1904044002 | ND |
| 2019-04-03 | S1904044003 | 2.50 ppb |
| 2019-04-03 | S1904044004 | 2.70 ppb |
| 2019-04-03 | S1904044005 | 2.30 ppb |
| 2019-04-03 | S1904044006 | 2.90 ppb |
| 2019-04-03 | S1904044007 | 2.50 ppb |
| 2019-04-03 | S1904044008 | 2.60 ppb |
| 2019-04-03 | S1904044009 | 3.10 ppb |
| 2019-04-03 | S1904044010 | 2.70 ppb |
| 2019-04-03 | S1904044011 | 2.00 ppb |
| 2019-04-03 | S1904044012 | 2.00 ppb |
| 2019-04-03 | S1904044013 | 2.00 ppb |
| 2019-04-03 | S1904044014 | ND |
| 2019-04-03 | S1904044015 | ND |
| 2019-04-03 | S1904044016 | 2.10 ppb |
| 2019-07-03 | S1916337001 | ND |
| 2019-07-03 | S1916337002 | ND |
| 2019-07-03 | S1916337003 | ND |
| 2019-07-03 | S1916337004 | ND |
| 2019-07-03 | S1916337005 | ND |
| 2019-07-03 | S1916337006 | ND |
| 2019-07-03 | S1916337007 | ND |
| 2019-07-03 | S1916337008 | ND |
| 2019-07-03 | S1916337009 | 2.20 ppb |
| 2019-07-03 | S1916337010 | 2.20 ppb |
| 2019-07-03 | S1916337011 | ND |
| 2019-07-03 | S1916337012 | ND |
| 2019-07-03 | S1916337013 | ND |
| 2019-07-03 | S1916337014 | ND |
| 2019-07-03 | S1916337015 | ND |
| 2019-07-03 | S1916337016 | ND |
| 2019-10-03 | S1945084001 | ND |
| 2019-10-03 | S1945084002 | ND |
| 2019-10-03 | S1945084003 | ND |
| 2019-10-03 | S1945084004 | 2.10 ppb |
| 2019-10-03 | S1945084005 | 2.40 ppb |
| 2019-10-03 | S1945084006 | 2.20 ppb |
| 2019-10-03 | S1945084007 | ND |
| 2019-10-03 | S1945084008 | ND |
| 2019-10-03 | S1945084009 | 2.50 ppb |
| 2019-10-03 | S1945084010 | ND |
| 2019-10-03 | S1945084011 | 2.20 ppb |
| 2019-10-03 | S1945084012 | ND |
| 2019-10-03 | S1945084013 | ND |
| 2019-10-03 | S1945084014 | 2.00 ppb |
| 2019-10-03 | S1945084015 | ND |
| 2019-10-03 | S1945084016 | ND |