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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Lake Lorraine Ws

NOTE: Lake Lorraine Ws purchases water from Montgomery County UD 4 which is required to test for nitrate and nitrite. Sample information shown below was taken by Montgomery County UD 4.

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.0200 ppm220.0200 ppm
20140.0500 ppm110.0500 ppm
20150.0250 ppm220.0200 ppm - 0.0300 ppm
2016N/A00N/A
2017N/A00N/A

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

NOTE: Lake Lorraine Ws purchases water from Montgomery County UD 4 which is required to test for nitrate and nitrite. Sample information shown below was taken by Montgomery County UD 4.

Date Lab ID Result
2012-03-15AB84099ND
2012-03-15AB84100ND
2013-01-29AC089280.0200 ppm
2013-01-29AC089170.0200 ppm
2014-03-18AC472130.0500 ppm
2015-07-14AC992830.0200 ppm
2015-07-14AC992790.0300 ppm