Nitrite
Tesoro Viejo Master Mwc, Inc.
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.
281
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 21 | 0 | ND |
| 2019 | ND | 85 | 0 | ND |
| 2020 | ND | 82 | 0 | ND |
| 2021 | ND | 77 | 0 | ND |
| 2022 | ND | 13 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
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 |
|---|---|---|
| 2018-08-31 | CA2010017_002_002-201808310845 | ND |
| 2018-10-03 | CA2010017_DST_900-201810030712 | ND |
| 2018-10-10 | CA2010017_DST_900-201810100708 | ND |
| 2018-10-16 | CA2010017_003_003-201810161048 | ND |
| 2018-10-16 | CA2010017_DST_900-201810160900 | ND |
| 2018-10-24 | CA2010017_003_003-201810240748 | ND |
| 2018-10-24 | CA2010017_DST_900-201810240930 | ND |
| 2018-10-31 | CA2010017_DST_900-201810310704 | ND |
| 2018-11-07 | CA2010017_DST_900-201811070915 | ND |
| 2018-11-07 | CA2010017_003_003-201811071100 | ND |
| 2018-11-14 | CA2010017_DST_900-201811140655 | ND |
| 2018-11-20 | CA2010017_DST_900-201811200746 | ND |
| 2018-11-20 | CA2010017_003_003-201811200919 | ND |
| 2018-11-27 | CA2010017_003_003-201811271105 | ND |
| 2018-11-27 | CA2010017_DST_900-201811270726 | ND |
| 2018-12-05 | CA2010017_DST_900-201812051018 | ND |
| 2018-12-06 | CA2010017_006_006-201812061040 | ND |
| 2018-12-12 | CA2010017_DST_900-201812121117 | ND |
| 2018-12-12 | CA2010017_001_001-201812121045 | ND |
| 2018-12-19 | CA2010017_DST_900-201812191027 | ND |
| 2018-12-26 | CA2010017_DST_900-201812260940 | ND |
| 2019-01-04 | CA2010017_DST_900-201901040830 | ND |
| 2019-01-08 | CA2010017_DST_900-201901081315 | ND |
| 2019-01-08 | CA2010017_003_003-201901081410 | ND |
| 2019-01-16 | CA2010017_DST_900-201901161455 | ND |
| 2019-01-23 | CA2010017_DST_900-201901230925 | ND |
| 2019-01-30 | CA2010017_DST_900-201901301037 | ND |
| 2019-02-06 | CA2010017_DST_900-201902061106 | ND |
| 2019-02-13 | CA2010017_DST_900-201902130955 | ND |
| 2019-02-20 | CA2010017_DST_900-201902201115 | ND |
| 2019-02-27 | CA2010017_DST_900-201902271500 | ND |
| 2019-03-05 | CA2010017_DST_900-201903051447 | ND |
| 2019-03-05 | CA2010017_003_003-201903051515 | ND |
| 2019-03-06 | CA2010017_003_003-201903061420 | ND |
| 2019-03-06 | CA2010017_DST_900-201903061225 | ND |
| 2019-03-07 | CA2010017_003_003-201903070950 | ND |
| 2019-03-08 | CA2010017_003_003-201903080840 | ND |
| 2019-03-13 | CA2010017_DST_900-201903130710 | ND |
| 2019-03-20 | CA2010017_DST_900-201903200920 | ND |
| 2019-03-27 | CA2010017_DST_900-201903270900 | ND |
| 2019-04-03 | CA2010017_003_003-201904031105 | ND |
| 2019-04-03 | CA2010017_DST_900-201904031010 | ND |
| 2019-04-10 | CA2010017_DST_900-201904100715 | ND |
| 2019-04-17 | CA2010017_003_003-201904171455 | ND |
| 2019-04-17 | CA2010017_DST_900-201904171050 | ND |
| 2019-04-24 | CA2010017_DST_900-201904240700 | ND |
| 2019-05-01 | CA2010017_003_003-201905011025 | ND |
| 2019-05-01 | CA2010017_DST_900-201905010920 | ND |
| 2019-05-08 | CA2010017_DST_900-201905080730 | ND |
| 2019-05-15 | CA2010017_003_003-201905151445 | ND |
| 2019-05-15 | CA2010017_DST_900-201905151040 | ND |
| 2019-05-15 | CA2010017_001_001-201905151345 | ND |
| 2019-05-22 | CA2010017_DST_900-201905220820 | ND |
| 2019-05-29 | CA2010017_003_003-201905290920 | ND |
| 2019-05-29 | CA2010017_DST_900-201905290825 | ND |
| 2019-06-05 | CA2010017_DST_900-201906050900 | ND |
| 2019-06-12 | CA2010017_DST_900-201906120825 | ND |
| 2019-06-12 | CA2010017_003_003-201906121050 | ND |
| 2019-06-12 | CA2010017_006_006-201906121015 | ND |
| 2019-06-19 | CA2010017_DST_900-201906190720 | ND |
| 2019-06-26 | CA2010017_003_003-201906261040 | ND |
| 2019-06-26 | CA2010017_DST_900-201906260950 | ND |
| 2019-07-03 | CA2010017_DST_900-201907030725 | ND |
| 2019-07-10 | CA2010017_003_003-201907101035 | ND |
| 2019-07-10 | CA2010017_DST_900-201907100930 | ND |
| 2019-07-17 | CA2010017_DST_900-201907170745 | ND |
| 2019-07-24 | CA2010017_003_003-201907241049 | ND |
| 2019-07-24 | CA2010017_DST_900-201907240836 | ND |
| 2019-07-31 | CA2010017_DST_900-201907310750 | ND |
| 2019-08-07 | CA2010017_003_003-201908071157 | ND |
| 2019-08-07 | CA2010017_DST_900-201908070844 | ND |
| 2019-08-13 | CA2010017_DST_900-201908131015 | ND |
| 2019-08-21 | CA2010017_003_003-201908211025 | ND |
| 2019-08-21 | CA2010017_002_002-201908210955 | ND |
| 2019-08-21 | CA2010017_DST_900-201908210900 | ND |
| 2019-08-28 | CA2010017_DST_900-201908280835 | ND |
| 2019-09-04 | CA2010017_003_003-201909041055 | ND |
| 2019-09-04 | CA2010017_DST_900-201909040950 | ND |
| 2019-09-11 | CA2010017_DST_900-201909110715 | ND |
| 2019-09-18 | CA2010017_002_002-201909180820 | ND |
| 2019-09-18 | CA2010017_003_003-201909180840 | ND |
| 2019-09-18 | CA2010017_DST_900-201909180905 | ND |
| 2019-09-25 | CA2010017_DST_900-201909250925 | ND |
| 2019-10-02 | CA2010017_003_003-201910021035 | ND |
| 2019-10-02 | CA2010017_002_002-201910020955 | ND |
| 2019-10-02 | CA2010017_DST_900-201910020835 | ND |
| 2019-10-09 | CA2010017_DST_900-201910090850 | ND |
| 2019-10-16 | CA2010017_DST_900-201910160930 | ND |
| 2019-10-16 | CA2010017_003_003-201910161100 | ND |
| 2019-10-16 | CA2010017_002_002-201910161035 | ND |
| 2019-10-23 | CA2010017_DST_900-201910230810 | ND |
| 2019-10-30 | CA2010017_002_002-201910301040 | ND |
| 2019-10-30 | CA2010017_003_003-201910301130 | ND |
| 2019-10-30 | CA2010017_DST_900-201910300925 | ND |
| 2019-11-06 | CA2010017_DST_900-201911060710 | ND |
| 2019-11-13 | CA2010017_003_003-201911131110 | ND |
| 2019-11-13 | CA2010017_DST_900-201911130910 | ND |
| 2019-11-20 | CA2010017_DST_900-201911200755 | ND |
| 2019-11-26 | CA2010017_003_003-201911261100 | ND |
| 2019-11-26 | CA2010017_DST_900-201911260900 | ND |
| 2019-12-04 | CA2010017_DST_900-201912041005 | ND |
| 2019-12-11 | CA2010017_003_003-201912111005 | ND |
| 2019-12-11 | CA2010017_DST_900-201912110900 | ND |
| 2019-12-18 | CA2010017_DST_900-201912180700 | ND |
| 2019-12-23 | CA2010017_DST_900-201912230750 | ND |
| 2019-12-23 | CA2010017_003_003-201912231100 | ND |
| 2020-01-02 | CA2010017_DST_900-202001020910 | ND |
| 2020-01-08 | CA2010017_003_003-202001081030 | ND |
| 2020-01-08 | CA2010017_DST_900-202001080915 | ND |
| 2020-01-15 | CA2010017_DST_900-202001151510 | ND |
| 2020-01-22 | CA2010017_003_003-202001221015 | ND |
| 2020-01-22 | CA2010017_DST_900-202001220855 | ND |
| 2020-01-29 | CA2010017_DST_900-202001290740 | ND |
| 2020-02-05 | CA2010017_DST_900-202002050845 | ND |
| 2020-02-05 | CA2010017_003_003-202002051015 | ND |
| 2020-02-12 | CA2010017_DST_900-202002120715 | ND |
| 2020-02-19 | CA2010017_DST_900-202002190745 | ND |
| 2020-02-19 | CA2010017_006_006-202002190915 | ND |
| 2020-02-19 | CA2010017_003_003-202002191015 | ND |
| 2020-02-26 | CA2010017_DST_900-202002260848 | ND |
| 2020-03-04 | CA2010017_DST_900-202003040830 | ND |
| 2020-03-04 | CA2010017_003_003-202003041030 | ND |
| 2020-03-11 | CA2010017_DST_900-202003110800 | ND |
| 2020-03-18 | CA2010017_003_003-202003181020 | ND |
| 2020-03-18 | CA2010017_DST_900-202003180830 | ND |
| 2020-03-24 | CA2010017_DST_900-202003241055 | ND |
| 2020-04-01 | CA2010017_DST_900-202004010855 | ND |
| 2020-04-01 | CA2010017_003_003-202004011025 | ND |
| 2020-04-08 | CA2010017_DST_900-202004080825 | ND |
| 2020-04-15 | CA2010017_DST_900-202004150745 | ND |
| 2020-04-16 | CA2010017_003_003-202004161010 | ND |
| 2020-04-22 | CA2010017_DST_900-202004220805 | ND |
| 2020-04-29 | CA2010017_003_003-202004291020 | ND |
| 2020-04-29 | CA2010017_DST_900-202004290830 | ND |
| 2020-05-06 | CA2010017_DST_900-202005060725 | ND |
| 2020-05-13 | CA2010017_003_003-202005131035 | ND |
| 2020-05-13 | CA2010017_DST_900-202005130825 | ND |
| 2020-05-20 | CA2010017_DST_900-202005200710 | ND |
| 2020-05-27 | CA2010017_003_003-202005271015 | ND |
| 2020-05-27 | CA2010017_DST_900-202005270845 | ND |
| 2020-06-03 | CA2010017_DST_900-202006030725 | ND |
| 2020-06-09 | CA2010017_001_001-202006090845 | ND |
| 2020-06-10 | CA2010017_DST_900-202006100820 | ND |
| 2020-06-10 | CA2010017_003_003-202006101030 | ND |
| 2020-06-15 | CA2010017_002_002-202006151100 | ND |
| 2020-06-17 | CA2010017_DST_900-202006170730 | ND |
| 2020-06-24 | CA2010017_003_003-202006241025 | ND |
| 2020-06-24 | CA2010017_DST_900-202006240913 | ND |
| 2020-07-01 | CA2010017_DST_900-202007011045 | ND |
| 2020-07-08 | CA2010017_003_003-202007081045 | ND |
| 2020-07-08 | CA2010017_DST_900-202007080915 | ND |
| 2020-07-15 | CA2010017_DST_900-202007150810 | ND |
| 2020-07-22 | CA2010017_DST_900-202007220930 | ND |
| 2020-07-22 | CA2010017_003_003-202007221020 | ND |
| 2020-07-29 | CA2010017_DST_900-202007291110 | ND |
| 2020-08-05 | CA2010017_003_003-202008051030 | ND |
| 2020-08-05 | CA2010017_DST_900-202008050902 | ND |
| 2020-08-12 | CA2010017_DST_900-202008120750 | ND |
| 2020-08-19 | CA2010017_003_003-202008191024 | ND |
| 2020-08-19 | CA2010017_DST_900-202008190925 | ND |
| 2020-08-26 | CA2010017_DST_900-202008260810 | ND |
| 2020-09-02 | CA2010017_DST_900-202009020950 | ND |
| 2020-09-02 | CA2010017_003_003-202009021030 | ND |
| 2020-09-09 | CA2010017_DST_900-202009090800 | ND |
| 2020-09-16 | CA2010017_DST_900-202009160830 | ND |
| 2020-09-16 | CA2010017_003_003-202009161015 | ND |
| 2020-09-23 | CA2010017_DST_900-202009230755 | ND |
| 2020-09-30 | CA2010017_DST_900-202009300840 | ND |
| 2020-09-30 | CA2010017_003_003-202009301030 | ND |
| 2020-10-07 | CA2010017_DST_900-202010070845 | ND |
| 2020-10-14 | CA2010017_003_003-202010141030 | ND |
| 2020-10-14 | CA2010017_DST_900-202010140835 | ND |
| 2020-10-21 | CA2010017_DST_900-202010210835 | ND |
| 2020-10-28 | CA2010017_DST_900-202010280835 | ND |
| 2020-10-28 | CA2010017_003_003-202010281045 | ND |
| 2020-11-04 | CA2010017_DST_900-202011040740 | ND |
| 2020-11-11 | CA2010017_003_003-202011111000 | ND |
| 2020-11-11 | CA2010017_DST_900-202011110815 | ND |
| 2020-11-19 | CA2010017_DST_900-202011190840 | ND |
| 2020-11-24 | CA2010017_DST_900-202011240835 | ND |
| 2020-11-24 | CA2010017_003_003-202011241025 | ND |
| 2020-12-02 | CA2010017_DST_900-202012020755 | ND |
| 2020-12-09 | CA2010017_003_003-202012091030 | ND |
| 2020-12-09 | CA2010017_DST_900-202012090830 | ND |
| 2020-12-16 | CA2010017_DST_900-202012161200 | ND |
| 2020-12-23 | CA2010017_003_003-202012231000 | ND |
| 2020-12-23 | CA2010017_DST_900-202012230855 | ND |
| 2020-12-30 | CA2010017_DST_900-202012300810 | ND |
| 2021-01-06 | CA2010017_DST_900-202101060845 | ND |
| 2021-01-06 | CA2010017_003_003-202101061040 | ND |
| 2021-01-13 | CA2010017_DST_900-202101130830 | ND |
| 2021-01-20 | CA2010017_003_003-202101201410 | ND |
| 2021-01-20 | CA2010017_DST_900-202101200855 | ND |
| 2021-01-26 | CA2010017_DST_900-202101261235 | ND |
| 2021-02-03 | CA2010017_003_003-202102031030 | ND |
| 2021-02-03 | CA2010017_DST_900-202102030855 | ND |
| 2021-02-10 | CA2010017_DST_900-202102100915 | ND |
| 2021-02-17 | CA2010017_006_006-202102171035 | ND |
| 2021-02-17 | CA2010017_003_003-202102171045 | ND |
| 2021-02-17 | CA2010017_DST_900-202102170830 | ND |
| 2021-02-25 | CA2010017_DST_900-202102251040 | ND |
| 2021-03-03 | CA2010017_003_003-202103031005 | ND |
| 2021-03-03 | CA2010017_DST_900-202103031130 | ND |
| 2021-03-12 | CA2010017_DST_900-202103120830 | ND |
| 2021-03-16 | CA2010017_003_003-202103161035 | ND |
| 2021-03-16 | CA2010017_DST_900-202103160840 | ND |
| 2021-03-24 | CA2010017_DST_900-202103240740 | ND |
| 2021-03-31 | CA2010017_003_003-202103311000 | ND |
| 2021-03-31 | CA2010017_DST_900-202103310825 | ND |
| 2021-04-07 | CA2010017_DST_900-202104070715 | ND |
| 2021-04-14 | CA2010017_DST_900-202104140825 | ND |
| 2021-04-14 | CA2010017_003_003-202104141010 | ND |
| 2021-04-21 | CA2010017_DST_900-202104211025 | ND |
| 2021-04-28 | CA2010017_DST_900-202104280750 | ND |
| 2021-04-28 | CA2010017_003_003-202104281015 | ND |
| 2021-05-05 | CA2010017_DST_900-202105051005 | ND |
| 2021-05-12 | CA2010017_DST_900-202105120830 | ND |
| 2021-05-12 | CA2010017_003_003-202105121035 | ND |
| 2021-05-19 | CA2010017_DST_900-202105190805 | ND |
| 2021-05-26 | CA2010017_003_003-202105260925 | ND |
| 2021-05-26 | CA2010017_DST_900-202105260715 | ND |
| 2021-06-02 | CA2010017_DST_900-202106021045 | ND |
| 2021-06-09 | CA2010017_003_003-202106091025 | ND |
| 2021-06-09 | CA2010017_DST_900-202106090745 | ND |
| 2021-06-09 | CA2010017_001_001-202106090845 | ND |
| 2021-06-16 | CA2010017_DST_900-202106160820 | ND |
| 2021-06-23 | CA2010017_003_003-202106231015 | ND |
| 2021-06-23 | CA2010017_DST_900-202106230715 | ND |
| 2021-06-28 | CA2010017_DST_900-202106281059 | ND |
| 2021-06-28 | CA2010017_002_002-202106280955 | ND |
| 2021-07-07 | CA2010017_003_003-202107071030 | ND |
| 2021-07-07 | CA2010017_DST_900-202107070915 | ND |
| 2021-07-14 | CA2010017_DST_900-202107141010 | ND |
| 2021-07-21 | CA2010017_003_003-202107210840 | ND |
| 2021-07-21 | CA2010017_DST_900-202107211025 | ND |
| 2021-07-26 | CA2010017_DST_900-202107260810 | ND |
| 2021-08-04 | CA2010017_003_003-202108041110 | ND |
| 2021-08-04 | CA2010017_DST_900-202108041040 | ND |
| 2021-08-11 | CA2010017_DST_900-202108111030 | ND |
| 2021-08-25 | CA2010017_DST_900-202108251030 | ND |
| 2021-09-01 | CA2010017_DST_900-202109010635 | ND |
| 2021-09-01 | CA2010017_003_003-202109011015 | ND |
| 2021-09-08 | CA2010017_DST_900-202109081030 | ND |
| 2021-09-15 | CA2010017_003_003-202109151340 | ND |
| 2021-09-15 | CA2010017_DST_900-202109151130 | ND |
| 2021-09-20 | CA2010017_DST_900-202109200911 | ND |
| 2021-09-28 | CA2010017_003_003-202109280820 | ND |
| 2021-09-28 | CA2010017_DST_900-202109281020 | ND |
| 2021-10-13 | CA2010017_003_003-202110131025 | ND |
| 2021-10-13 | CA2010017_DST_900-202110130935 | ND |
| 2021-10-20 | CA2010017_DST_900-202110200945 | ND |
| 2021-10-27 | CA2010017_003_003-202110271015 | ND |
| 2021-10-27 | CA2010017_DST_900-202110270900 | ND |
| 2021-11-03 | CA2010017_DST_900-202111030830 | ND |
| 2021-11-10 | CA2010017_DST_900-202111100725 | ND |
| 2021-11-10 | CA2010017_003_003-202111101040 | ND |
| 2021-11-17 | CA2010017_DST_900-202111170840 | ND |
| 2021-11-22 | CA2010017_DST_900-202111220925 | ND |
| 2021-11-23 | CA2010017_003_003-202111231055 | ND |
| 2021-12-01 | CA2010017_DST_900-202112010830 | ND |
| 2021-12-08 | CA2010017_003_003-202112081010 | ND |
| 2021-12-08 | CA2010017_DST_900-202112080840 | ND |
| 2021-12-20 | CA2010017_003_003-202112201105 | ND |
| 2021-12-20 | CA2010017_DST_900-202112200700 | ND |
| 2021-12-28 | CA2010017_DST_900-202112280815 | ND |
| 2022-01-05 | CA2010017_003_003-202201051015 | ND |
| 2022-01-05 | CA2010017_DST_900-202201050905 | ND |
| 2022-01-12 | CA2010017_DST_900-202201120850 | ND |
| 2022-01-19 | CA2010017_003_003-202201190955 | ND |
| 2022-01-19 | CA2010017_DST_900-202201190835 | ND |
| 2022-01-26 | CA2010017_DST_900-202201260840 | ND |
| 2022-02-02 | CA2010017_003_003-202202021300 | ND |
| 2022-02-02 | CA2010017_DST_900-202202020810 | ND |
| 2022-02-16 | CA2010017_006_006-202202160920 | ND |
| 2022-03-09 | CA2010017_DST_900-202203090900 | ND |
| 2022-05-11 | CA2010017_001_001-202205111025 | ND |
| 2022-06-08 | CA2010017_001_001-202206080930 | ND |
| 2022-07-06 | CA2010017_002_002-202207060900 | ND |
| 2023-02-13 | CA2010017_002_002-202302130630 | ND |
| 2023-02-14 | CA2010017_006_006-202302141040 | ND |
| 2023-06-05 | CA2010017_001_001-202306051040 | ND |