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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

City of La Habra

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.

MORE ABOUT THIS CONTAMINANT

 

157

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.00443 ppm142ND - 0.0350 ppm
20150.00674 ppm275ND - 0.0430 ppm
20160.00103 ppm371ND - 0.0380 ppm
20170.00426 ppm273ND - 0.0500 ppm
20180.0467 ppm173ND - 0.510 ppm
20190.00974 ppm353ND - 0.270 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

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
2014-07-143761-004-1330ND
2014-09-043761-004-1124ND
2014-09-043761-004-1126ND
2014-09-043761-028-1151ND
2014-09-043761-031-1055ND
2014-09-083761-004-1515ND
2014-10-063761-004-1505ND
2014-10-063761-005-15080.0350 ppm
2014-10-133761-004-1339ND
2014-10-133761-005-13440.0270 ppm
2014-12-013761-004-1529ND
2014-12-013761-005-1531ND
2014-12-083761-004-1327ND
2014-12-083761-005-1329ND
2015-01-053761-004-13210.0430 ppm
2015-01-053761-005-13240.0420 ppm
2015-01-123761-004-1423ND
2015-01-123761-005-1426ND
2015-02-023761-004-1407ND
2015-02-023761-005-1412ND
2015-02-093761-004-1539ND
2015-02-093761-005-1542ND
2015-03-023761-004-1456ND
2015-03-023761-005-1500ND
2015-03-093761-004-13500.0300 ppm
2015-03-093761-005-1355ND
2015-04-063761-004-1440ND
2015-04-063761-005-1445ND
2015-04-133761-004-1410ND
2015-04-133761-005-1415ND
2015-09-213761-004-1400ND
2015-09-213761-028-1515ND
2015-09-213761-031-1450ND
2015-11-023761-004-1500ND
2015-11-023761-005-15050.0340 ppm
2015-11-093761-004-1430ND
2015-11-093761-005-14350.0330 ppm
2015-12-073761-004-1415ND
2015-12-073761-005-1420ND
2015-12-143761-004-1415ND
2015-12-143761-005-1420ND
2016-01-043761-004-1045ND
2016-01-043761-005-1050ND
2016-01-113761-004-1413ND
2016-01-113761-005-1417ND
2016-02-013761-004-1411ND
2016-02-013761-005-1415ND
2016-02-083761-004-1213ND
2016-02-083761-005-1210ND
2016-03-083761-004-1035ND
2016-03-083761-005-1040ND
2016-03-143761-004-1435ND
2016-03-143761-005-1440ND
2016-04-043761-004-1245ND
2016-04-043761-005-1252ND
2016-04-113761-004-1435ND
2016-04-113761-005-1440ND
2016-05-023761-004-1540ND
2016-05-023761-005-1545ND
2016-05-093761-004-1512ND
2016-05-093761-005-1515ND
2016-06-063761-004-1216ND
2016-06-063761-005-1218ND
2016-06-133761-004-1435ND
2016-06-133761-005-14400.0380 ppm
2016-07-043761-004-1245ND
2016-07-043761-005-1248ND
2016-07-143761-004-1040ND
2016-07-143761-005-1045ND
2016-08-023761-004-1025ND
2016-08-023761-005-1030ND
2016-08-083761-004-1443ND
2016-08-083761-005-1447ND
2016-09-083761-004-1115ND
2016-09-083761-005-1130ND
2016-09-163761-028-1125ND
2016-09-163761-031-1100ND
2016-10-043761-004-1530ND
2017-02-063761-004-1310ND
2017-02-063761-005-13160.0350 ppm
2017-02-133761-004-1410ND
2017-02-133761-005-14150.0500 ppm
2017-03-063761-004-1352ND
2017-03-063761-005-13580.0300 ppm
2017-03-133761-004-1356ND
2017-03-133761-005-1401ND
2017-04-033761-004-1326ND
2017-04-033761-005-1333ND
2017-04-103761-004-1350ND
2017-04-103761-005-1357ND
2017-05-013761-004-1240ND
2017-05-013761-005-1245ND
2017-05-083761-004-1200ND
2017-05-083761-005-1205ND
2017-06-053761-004-1308ND
2017-06-053761-005-1313ND
2017-06-123761-004-1320ND
2017-06-123761-005-1325ND
2017-07-033761-004-1325ND
2017-07-033761-005-1333ND
2017-07-103761-004-1345ND
2017-07-103761-005-1352ND
2017-09-253761-028-1145ND
2017-09-273761-031-1435ND
2017-11-173761-004-1152ND
2018-02-263761-004-1314ND
2018-02-263761-005-1320ND
2018-03-053761-004-1346ND
2018-03-053761-005-1353ND
2018-03-123761-004-1316ND
2018-03-123761-005-13240.510 ppm
2018-04-023761-004-1140ND
2018-04-023761-005-11430.0840 ppm
2018-04-093761-004-1315ND
2018-04-093761-005-13200.200 ppm
2018-09-143761-004-1140ND
2018-09-143761-028-1111ND
2018-09-143761-031-1042ND
2018-12-173761-004-1335ND
2018-12-173761-005-1342ND
2018-12-233761-004-1210ND
2018-12-233761-005-1215ND
2019-01-073761-004-1405ND
2019-01-073761-005-1413ND
2019-01-233761-004-1345ND
2019-01-233761-005-13500.270 ppm
2019-02-043761-004-1446ND
2019-02-043761-005-14520.0430 ppm
2019-02-113761-004-1150ND
2019-02-113761-005-11550.0280 ppm
2019-03-193761-004-1253ND
2019-03-193761-005-1305ND
2019-04-223761-004-1209ND
2019-04-223761-005-1220ND
2019-04-293761-004-1345ND
2019-04-293761-005-1336ND
2019-05-133761-004-1150ND
2019-05-133761-005-1200ND
2019-08-303761-004-1235ND
2019-08-303761-005-1246ND
2019-09-023761-004-1223ND
2019-09-023761-005-1231ND
2019-09-093761-004-1400ND
2019-09-093761-005-1412ND
2019-09-113761-004-1140ND
2019-09-113761-028-1025ND
2019-09-113761-031-1100ND
2019-10-073761-004-1210ND
2019-10-073761-005-1217ND
2019-10-143761-004-1355ND
2019-10-143761-005-1400ND
2019-11-043761-004-1425ND
2019-11-043761-005-1433ND
2019-11-133761-004-1140ND
2019-11-133761-005-1145ND
2019-12-023761-004-1212ND
2019-12-023761-005-1218ND