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EWG's Tap Water Database — 2021 UPDATE

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Perfluorobutane sulfonate (PFBS)

Harris County Municipal Utility District 158

NOTE: Harris County Municipal Utility District 158 purchases water from City of Houston which is required to test for perfluorobutane sulfonate (pfbs). Sample information shown below was taken by City of Houston.

Perfluorobutane sulfonate (PFBS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for perfluorobutane sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

NOTE: Harris County Municipal Utility District 158 purchases water from City of Houston which is required to test for perfluorobutane sulfonate (pfbs). Sample information shown below was taken by City of Houston.

Date Lab ID Result
2013-07-091307298-001CND
2013-07-091307338-001CND
2013-07-091307286-001CND
2013-07-091307282-001CND
2013-07-091307283-001CND
2013-07-091307329-001CND
2013-07-091307285-001CND
2013-07-091307333-001CND
2013-07-091307284-001CND
2013-07-101307327-001CND
2013-07-101307334-001CND
2013-07-101307335-001CND
2013-07-101307330-001CND
2013-07-101307337-001CND
2013-07-101307310-001CND
2013-07-101307331-001CND
2013-07-101307341-001CND
2013-07-111307304-001CND
2013-07-161307536-001CND
2013-07-161307541-001CND
2013-07-161307534-001CND
2013-07-161307553-001CND
2013-07-161307542-001CND
2013-07-161307537-001CND
2013-07-161307535-001CND
2013-07-161307549-001CND
2013-07-161307555-001CND
2013-07-161307552-001CND
2013-07-171307589-001CND
2013-07-171307587-001CND
2013-07-171307592-001CND
2013-07-171307593-001CND
2013-07-171307543-001CND
2013-07-171307588-001CND
2013-07-171307590-001CND
2013-07-171307594-001CND
2013-07-171307547-001CND
2013-07-171307546-001CND
2013-07-171307591-001CND
2013-07-301307A06-001CND
2013-07-311307A07-001CND
2013-10-151310526-001CND
2013-10-151310596-001CND
2013-10-151310536-001CND
2013-10-151310525-001CND
2013-10-151310535-001CND
2013-10-151310524-001CND
2013-10-151310595-001CND
2013-10-161310594-001CND
2013-10-161310597-001CND
2013-10-161310593-001CND
2014-01-211401595-001CND
2014-01-211401602-001CND
2014-01-211401750-001CND
2014-01-211401596-001CND
2014-01-211401592-001CND
2014-01-211401597-001CND
2014-01-211401600-001CND
2014-01-211401594-001CND
2014-01-211401593-001CND
2014-01-211401601-001CND
2014-01-211401599-001CND
2014-01-211401693-001CND
2014-01-211401603-001CND
2014-01-211401641-001CND
2014-01-221401639-001CND
2014-01-221401637-001CND
2014-01-221401636-001CND
2014-01-221401638-001CND
2014-01-221401640-001CND
2014-02-051402322-001CND
2014-02-051402196-001CND
2014-02-051402190-001CND
2014-02-051402211-001CND
2014-02-051402198-001CND
2014-02-051402193-001CND
2014-02-051402184-001CND
2014-02-051402199-001CND
2014-02-051402201-001CND
2014-02-051402205-001CND
2014-02-051402197-001CND
2014-02-051402185-001CND
2014-02-051402202-001CND
2014-02-051402192-001CND
2014-02-051402203-001AND
2014-02-051402194-001CND
2014-02-051402186-001CND
2014-02-051402191-001CND
2014-02-051402187-001CND
2014-02-051402195-001CND
2014-02-051402189-001CND
2014-02-051402188-001CND
2014-02-051402200-001CND
2014-04-151404648-001CND
2014-04-151404643-001CND
2014-04-151404649-001CND
2014-04-151404646-001CND
2014-04-151404642-001CND
2014-04-151404644-001CND
2014-04-161404647-001CND
2014-04-211404865-001CND
2014-04-281404B05-001AND