Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Mercury (inorganic)

Northampton Bucks County Municipal Authority

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0191 ppb157ND - 0.0550 ppb
2013N/A00N/A
2014N/A00N/A
2015ND150ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) was defined 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2012-10-17L4361807-2ND
2012-10-17L4361807-1ND
2012-10-17L4361807-12ND
2012-10-17L4361807-140.0340 ppb
2012-10-17L4361807-130.0490 ppb
2012-10-17L4361807-60.0390 ppb
2012-10-17L4361807-5ND
2012-10-17L4361807-100.0510 ppb
2012-10-17L4361807-11ND
2012-10-17L4361807-90.0550 ppb
2012-10-17L4361807-8ND
2012-10-17L4361807-7ND
2012-10-17L4361807-40.0160 ppb
2012-10-17L4361807-3ND
2012-12-14L4422964-20.0420 ppb
2015-08-2413124471ND
2015-08-2413124495ND
2015-08-2413124483ND
2015-08-2413124555ND
2015-08-2413124543ND
2015-08-2413124459ND
2015-08-2413124435ND
2015-08-2413124447ND
2015-08-2413124591ND
2015-08-2413124579ND
2015-08-2413124567ND
2015-08-2413124531ND
2015-08-2413124519ND
2015-08-2413124507ND
2015-08-2413124423ND