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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Lompoc Water Utility Division

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

 

130

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0282 ppm246ND - 0.136 ppm
20150.00786 ppm232ND - 0.0904 ppm
20160.0818 ppm223ND - 0.700 ppm
2017ND200ND
2018ND210ND
2019ND200ND

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2014-01-075867-002-0836ND
2014-01-085867-004-1141ND
2014-01-085867-007-1100ND
2014-01-085867-008-1117ND
2014-01-085867-016-1202ND
2014-01-155867-002-1316ND
2014-01-155867-003-1207ND
2014-01-155867-006-1228ND
2014-01-155867-009-1248ND
2014-01-155867-012-11150.136 ppm
2014-01-155867-013-1302ND
2014-02-055867-002-0746ND
2014-03-055867-002-0748ND
2014-03-125867-011-11130.113 ppm
2014-04-025867-002-1048ND
2014-05-075867-002-08200.0904 ppm
2014-06-045867-002-0754ND
2014-07-025867-002-0915ND
2014-07-273761-002-1401ND
2014-08-065867-002-08020.113 ppm
2014-09-035867-002-08040.113 ppm
2014-10-085867-002-0753ND
2014-11-055867-002-08180.113 ppm
2014-12-035867-002-0821ND
2015-01-065867-002-0915ND
2015-01-075867-007-1255ND
2015-01-075867-011-1217ND
2015-01-075867-012-1104ND
2015-01-075867-013-1235ND
2015-01-075867-016-1151ND
2015-01-145867-002-08020.0904 ppm
2015-01-145867-003-1152ND
2015-01-145867-004-1210ND
2015-01-145867-006-1128ND
2015-01-145867-008-1103ND
2015-02-045867-002-0955ND
2015-03-045867-002-0804ND
2015-03-045867-009-11100.0904 ppm
2015-04-015867-002-0854ND
2015-05-065867-002-0910ND
2015-06-035867-002-0924ND
2015-07-015867-002-1138ND
2015-08-055867-002-0852ND
2015-09-025867-002-0800ND
2015-10-075867-002-0935ND
2015-11-045867-002-0926ND
2015-12-025867-002-0924ND
2016-01-015867-002-1017ND
2016-01-065867-002-1017ND
2016-01-065867-003-1212ND
2016-01-065867-007-1108ND
2016-01-065867-011-1307ND
2016-01-065867-016-1244ND
2016-01-135867-008-1125ND
2016-01-135867-009-1215ND
2016-01-135867-013-1151ND
2016-01-205867-012-1224ND
2016-02-035867-002-1056ND
2016-02-035867-006-1206ND
2016-03-025867-002-1033ND
2016-04-065867-002-0914ND
2016-05-045867-002-0958ND
2016-06-015867-002-1002ND
2016-07-065867-002-1005ND
2016-08-035867-002-09250.700 ppm
2016-09-075867-002-09540.600 ppm
2016-10-055867-002-10100.500 ppm
2016-11-025867-002-1035ND
2016-12-075867-002-1123ND
2017-01-045867-002-1238ND
2017-01-045867-012-1205ND
2017-01-115867-006-1229ND
2017-01-115867-011-1202ND
2017-01-185867-008-1208ND
2017-01-185867-009-1245ND
2017-01-185867-013-1228ND
2017-02-015867-002-1017ND
2017-02-015867-003-1206ND
2017-02-015867-007-1301ND
2017-02-015867-016-1232ND
2017-03-015867-002-1017ND
2017-04-055867-002-0907ND
2017-05-035867-002-1051ND
2017-06-075867-002-0941ND
2017-07-055867-002-1021ND
2017-08-025867-002-1022ND
2017-09-135867-002-0837ND
2017-10-045867-002-0918ND
2017-11-015867-002-1011ND
2018-01-035867-002-1112ND
2018-01-035867-012-1027ND
2018-01-115867-011-1027ND
2018-01-115867-013-1009ND
2018-01-185867-006-1034ND
2018-01-185867-008-1056ND
2018-01-185867-016-1010ND
2018-01-245867-009-1023ND
2018-02-075867-002-0842ND
2018-03-075867-002-1102ND
2018-03-075867-002-1105ND
2018-04-045867-002-0918ND
2018-04-195867-007-1055ND
2018-05-025867-002-1112ND
2018-06-065867-002-0958ND
2018-07-115867-002-1152ND
2018-08-015867-002-1021ND
2018-09-055867-002-0920ND
2018-10-035867-002-1106ND
2018-11-075867-002-1012ND
2018-12-125867-002-0846ND
2019-01-025867-002-0820ND
2019-01-025867-006-1032ND
2019-01-025867-008-1058ND
2019-01-025867-016-0950ND
2019-01-165867-011-0940ND
2019-01-165867-012-1015ND
2019-01-165867-013-0910ND
2019-01-235867-007-0920ND
2019-01-235867-009-1016ND
2019-02-055867-002-1602ND
2019-03-065867-002-1025ND
2019-04-035867-002-0750ND
2019-05-015867-002-1058ND
2019-06-055867-002-0746ND
2019-07-025867-002-0753ND
2019-08-075867-002-0802ND
2019-09-045867-002-0746ND
2019-10-025867-002-0754ND
2019-11-065867-002-0752ND
2019-12-045867-002-0805ND