Know Your Environment. Protect Your Health.

Nitrate and nitrite

Arcadia Public Works Authority

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.641 ppm48480.290 ppm - 2.13 ppm
20190.536 ppm4726ND - 4.17 ppm
20200.720 ppm46460.310 ppm - 2.28 ppm
20210.695 ppm44440.278 ppm - 2.34 ppm
20220.713 ppm4638ND - 2.34 ppm
20230.659 ppm43430.114 ppm - 2.32 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG 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

Date Lab ID Result