Know Your Environment. Protect Your Health.

Nitrite

Regional Water Authority

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

 

158

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND110ND
2019ND110ND
2020ND130ND
2021ND970ND
2022ND110ND
2023ND150ND

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2018-03-14NOX 200489867ND
2018-03-14NOX 200489870ND
2018-03-14NOX 200489868ND
2018-03-14NOX 200489884ND
2018-03-14NOX 200489885ND
2018-03-14NOX 200489871ND
2018-03-14NOX 200489913ND
2018-03-14NOX 200489914ND
2018-03-15NOX 200490061ND
2018-11-29NOX 200514097ND
2018-11-29NOX 200514112ND
2019-03-18NOX 200524895ND
2019-03-19NOX 200525057ND
2019-03-19NOX 200525060ND
2019-03-19NOX 200525058ND
2019-03-19NOX 200525059ND
2019-03-19NOX 200525077ND
2019-03-19NOX 200525078ND
2019-03-19NOX 200525061ND
2019-03-19NOX 200525097ND
2019-03-19NOX 200525098ND
2019-05-08NOX 200531297ND
2020-02-10NOX 200565460ND
2020-02-11NOX 200565624ND
2020-02-11NOX 200565625ND
2020-02-11NOX 200565627ND
2020-02-11NOX 200565625AND
2020-02-11NOX 200565626ND
2020-02-11NOX 200565593ND
2020-02-11NOX 200565594ND
2020-02-11NOX 200565628AND
2020-02-11NOX 200565616ND
2020-02-11NOX 200565617ND
2020-02-11NOX 200565628ND
2020-08-11NOX 200585733ND
2021-02-09NOX 200606114ND
2021-02-09NOX 200606111ND
2021-02-09NOX 200606110ND
2021-02-09NOX 200606109ND
2021-02-09NOX 200605956ND
2021-02-09NOX 200605886ND
2021-02-09NOX 200605888ND
2021-02-09NOX 200605959ND
2021-02-09NOX 200606116ND
2021-09-20N300062460 300062463ND
2021-09-20N300062466 300062469ND
2021-09-20N300062475 300062478ND
2021-09-20N300062500 300062503ND
2021-09-20N300062713 300062716ND
2021-09-20N300062724 300062727ND
2021-09-20N300062698 300062701ND
2021-09-20N300062683 300062686ND
2021-09-20N300062689 300062692ND
2021-09-20N300062662 300062665ND
2021-09-20N300062674 300062677ND
2021-09-20N300062652 300062655ND
2021-09-20N300062668 300062671ND
2021-09-21N300062817 300062820ND
2021-09-21N300062862 300062865ND
2021-09-21N300062874 300062877ND
2021-09-21N300062797 300062800ND
2021-09-21N300062791 300062794ND
2021-09-21N300062785 300062788ND
2021-09-21N300062779 300062782ND
2021-09-21N300062758 300062761ND
2021-09-21N300062892 300062895ND
2021-09-21N300062905 300062908ND
2021-09-21N300062803 300062806ND
2021-09-21N300064199 300064202ND
2021-09-21N300064205 300064208ND
2021-09-21N300062764 300062767ND
2021-09-21N300062770 300062774ND
2021-09-21N300062898 300062902ND
2021-09-21N300062912 300062916ND
2021-09-21N300062810 300062814ND
2021-09-22N300064359 300064362ND
2021-09-22N300064371 300064374ND
2021-09-22N300064777 300064780ND
2021-09-22N300064783 300064786ND
2021-09-22N300064789 300064792ND
2021-09-22N300064341 300064344ND
2021-09-23N300066513 300066516ND
2021-09-23N300066525 300066528ND
2021-09-28N300068432 300068435ND
2021-09-29N300070521 300070524ND
2021-10-18N300082865 300082868ND
2021-10-18N300082872 300082876ND
2021-12-06N300112626 300112629ND
2021-12-06N300112635 300112638ND
2021-12-06N300112644 300112647ND
2021-12-06N300112669 300112672ND
2021-12-06N300112518 300112521ND
2021-12-06N300112543 300112546ND
2021-12-06N300112503 300112506ND
2021-12-06N300112488 300112491ND
2021-12-06N300112494 300112497ND
2021-12-06N300112475 300112478ND
2021-12-06N300112549 300112552ND
2021-12-07N300113019 300113022ND
2021-12-07N300113213 300113216ND
2021-12-07N300112776 300112779ND
2021-12-07N300112788 300112791ND
2021-12-07N300112999 300113002ND
2021-12-07N300112992 300112996ND
2021-12-07N300113807 300113810ND
2021-12-07N300112806 300112809ND
2021-12-07N300112819 300112822ND
2021-12-07N300113005 300113008ND
2021-12-07N300113025 300113030ND
2021-12-07N300113056 300113059ND
2021-12-07N300113062 300113065ND
2021-12-07N300112812 300112816ND
2021-12-07N300113034 300113038ND
2021-12-07N300112826 300112830ND
2021-12-07N300113012 300113016ND
2021-12-07N300113068 300113071ND
2021-12-08N300113983 300113986ND
2021-12-08N300113989 300113992ND
2021-12-08N300113995 300113998ND
2021-12-08N300114092 300114095ND
2021-12-08N300114127 300114130ND
2021-12-08N300114139 300114142ND
2021-12-08N300114133 300114136ND
2021-12-09N300115069 300115072ND
2021-12-09N300116072 300116075ND
2021-12-09N300116078 300116081ND
2021-12-09N300116084 300116087ND
2021-12-14N300113228 300113231ND
2021-12-14N300113222 300113225ND
2021-12-14N300113234 300113237ND
2021-12-14N300113253 300113256ND
2021-12-14N300113240 300113243ND
2022-02-15N300145541 300145544ND
2022-02-15N300145532 300145535ND
2022-02-15N300145523 300145526ND
2022-02-15N300145514 300145517ND
2022-02-15N300146276 300146279ND
2022-02-15N300145647 300145650ND
2022-02-15N300145667 300145670ND
2022-02-15N300145550 300145553ND
2022-02-15N300145575 300145578ND
2022-02-15N300145699 300145702ND
2022-02-15N300145718 300145721ND
2023-05-09N300346683 300346686ND
2023-05-09N300346677 300346680ND
2023-05-09N300346671 300346674ND
2023-05-09N300346754 300346757ND
2023-05-09N300346689 300346692ND
2023-05-09N300346708 300346711ND
2023-05-09N300346714 300346718ND
2023-05-09N300346695 300346699ND
2023-05-10N300347601 300347604ND
2023-05-10N300347613 300347616ND
2023-05-23N300354085 300354088ND
2023-05-23N300354099 300354102ND
2023-05-23N300354092 300354096ND
2023-05-23N300354106 300354110ND
2023-08-15N300397643 300397646ND