Know Your Environment. Protect Your Health.

Nitrate and nitrite

Jonesboro Water System

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND120ND
20190.00650 ppm122ND - 0.0390 ppm
20200.1000 ppm63ND - 0.300 ppm
20210.0833 ppm62ND - 0.300 ppm
2022ND60ND
2023ND60ND

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
2018-03-0535378990001ND
2018-03-0535378990001ND
2018-08-2035412727004ND
2018-08-2035412727003ND
2018-08-2035412727001ND
2018-08-2035412727002ND
2018-08-2035412727003ND
2018-08-2035412727004ND
2018-08-2035412727002ND
2018-08-2035412727001ND
2018-08-2735414189001ND
2018-08-2735414189001ND
2019-10-2235507148001ND
2019-10-2235507148001ND
2019-12-0935518114002ND
2019-12-09355181140010.0390 ppm
2019-12-0935518114005ND
2019-12-0935518114004ND
2019-12-0935518114003ND
2019-12-0935518114002ND
2019-12-09355181140010.0390 ppm
2019-12-0935518114005ND
2019-12-0935518114004ND
2019-12-0935518114003ND
2020-09-08B2004559-001ND
2020-11-25B2006388-0010.1000 ppm
2020-11-25B2006388-005ND
2020-11-25B2006388-003ND
2020-11-25B2006388-0020.200 ppm
2020-11-25B2006388-0040.300 ppm
2021-04-06B2101580-005ND
2021-04-06B2101580-006ND
2021-04-06B2101580-0070.200 ppm
2021-04-06B2101580-008ND
2021-04-06B2101580-0090.300 ppm
2021-04-06B2101580-010ND
2022-04-26B2202014-002ND
2022-04-26B2202014-006ND
2022-04-26B2202014-005ND
2022-04-26B2202014-004ND
2022-04-26B2202014-003ND
2022-04-26B2202014-001ND
2023-09-29B2304383-001ND
2023-09-29B2304383-002ND
2023-09-29B2304383-003ND
2023-09-29B2304383-004ND
2023-09-29B2304383-005ND
2023-09-29B2304383-006ND