Know Your Environment. Protect Your Health.

Nitrite

Diagonal Water Department

NOTE: Diagonal Water Department purchases water from SIRWA #2 (Creston) which is required to test for nitrite. Sample information shown below was taken by SIRWA #2 (Creston).

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.

 

112

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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

NOTE: Diagonal Water Department purchases water from SIRWA #2 (Creston) which is required to test for nitrite. Sample information shown below was taken by SIRWA #2 (Creston).

Date Lab ID Result
2018-06-265883170.1000 ppm
2018-09-17592440ND
2019-03-06OE778605ND
2019-05-20OE810747ND
2019-05-20OE810755ND
2019-06-18OE823485ND
2019-06-24OE825675ND
2019-07-08OE831624ND
2019-07-08OE831625ND
2019-08-05OE845485ND
2019-08-19OE853051ND
2019-09-19OE868493ND
2019-09-19OE868494ND
2019-10-29OE886898ND
2019-11-13OE893717ND
2019-11-13OE893718ND
2019-12-09OE903817ND
2019-12-10OE904415ND
2020-01-15OE917651ND
2020-01-15OE917653ND
2020-02-12OE928648ND
2020-02-12OE928650ND
2020-03-10OE939736ND
2020-03-10OE939737ND
2020-04-13OE959017ND
2020-04-14OE959819ND
2020-05-13OE1006804ND
2020-06-16OE1054021ND
2020-06-17OE1054023ND
2020-07-14OE1116521ND
2020-07-15OE1116519ND
2020-08-12OE1174839ND
2020-08-13OE1174840ND
2020-09-15OE1262476ND
2020-09-16OE1262475ND
2020-10-05OE1312828ND
2020-10-05OE1312838ND
2020-11-11OE1416882ND
2020-11-12OE1416881ND
2020-12-14OE1493278ND
2020-12-16OE1496882ND
2021-01-12OE1541963ND
2021-01-13OE1543004ND
2021-02-11OE1586428ND
2021-02-17OE1593692ND
2021-03-17OE1628471ND
2021-03-23OE1635363ND
2021-04-15OE1662090ND
2021-04-19OE1667136ND
2021-05-05OE1686106ND
2021-05-10OE1691513ND
2021-06-16OE1730700ND
2021-06-17OE1731428ND
2021-07-15OE1758830ND
2021-07-20OE1764412ND
2021-08-11OE1792443ND
2021-08-24OE1813542ND
2021-09-21OE1857516ND
2021-09-22OE1858368ND
2021-10-11OE1885721ND
2021-10-18OE1895883ND
2021-11-17OE1936623ND
2021-11-29OE1948891ND
2021-12-13OE1968529ND
2021-12-27OE1986218ND
2022-01-11OE2006915ND
2022-01-12OE2007225ND
2022-02-09OE2040586ND
2022-02-15OE2046734ND
2022-03-14OE2065491ND
2022-03-16OE2066254ND
2022-04-11OE2080129ND
2022-04-14OE2082260ND
2022-05-03OE2093224ND
2022-06-13OE2115361ND
2022-06-27OE2124292ND
2022-07-12OE2133703ND
2022-07-14OE2134774ND
2022-08-10OE2152157ND
2022-08-16OE2156184ND
2022-09-08OE2169740ND
2022-10-13OE2189994ND
2022-10-24OE2194781ND
2022-10-26OE2196592ND
2022-11-17OE2206924ND
2022-11-17OE2207483ND
2022-12-19OE2220990ND
2022-12-19OE2220994ND
2022-12-21OE2221806ND
2023-01-17OE2231069ND
2023-01-18OE2231618ND
2023-02-15OE2242915ND
2023-03-15OE2254053ND
2023-03-15OE2254547ND
2023-04-10OE2264819ND
2023-04-13OE2266570ND
2023-05-04OE2275937ND
2023-05-17OE2282230ND
2023-06-12OE2292624ND
2023-06-20OE2295779ND
2023-07-11OE2305590ND
2023-07-20OE2310285ND
2023-08-21OE2325475ND
2023-08-23OE2327134ND
2023-09-19OE2339216ND
2023-09-19OE2339215ND
2023-10-17OE2352140ND
2023-10-17OE2352141ND
2023-11-13OE2362779ND
2023-11-20OE2366069ND
2023-12-12OE2374818ND
2023-12-18OE2377008ND