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EWG's Tap Water Database

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Dalapon

Clearwater Water System

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20100.186 ppb71ND - 1.30 ppb
20110.177 ppb92ND - 0.800 ppb
20120.497 ppb129ND - 1.10 ppb
20130.347 ppb73ND - 1.10 ppb
20140.598 ppb64ND - 1.20 ppb
20150.260 ppb63ND - 0.630 ppb

ppb = parts per billion.

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)200 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Result
2010-02-10ND
2010-02-10ND
2010-02-11ND
2010-08-171.30 ppb
2010-08-17ND
2010-08-17ND
2010-10-22ND
2011-02-16ND
2011-02-160.800 ppb
2011-02-16ND
2011-06-060.790 ppb
2011-08-26ND
2011-08-26ND
2011-08-26ND
2011-11-02ND
2011-11-02ND
2012-01-18ND
2012-01-180.550 ppb
2012-02-100.650 ppb
2012-02-10ND
2012-02-100.810 ppb
2012-04-030.530 ppb
2012-04-030.520 ppb
2012-07-130.790 ppb
2012-07-13ND
2012-07-130.450 ppb
2012-10-080.560 ppb
2012-10-081.10 ppb
2013-02-01ND
2013-02-01ND
2013-02-011.10 ppb
2013-04-110.430 ppb
2013-04-110.900 ppb
2013-10-04ND
2013-10-04ND
2014-02-13ND
2014-04-081.20 ppb
2014-08-141.000 ppb
2014-08-14ND
2014-10-130.710 ppb
2014-10-130.680 ppb
2015-01-13ND
2015-01-13ND
2015-04-150.630 ppb
2015-05-070.380 ppb
2015-07-29ND
2015-10-220.550 ppb