Nitrate and nitrite

Las Cruces Municipal Water System

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

136

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.140 ppm	25	3	ND - 1.40 ppm
2015	0.275 ppm	24	3	ND - 3.00 ppm
2016	0.436 ppm	20	8	ND - 2.30 ppm
2017	0.392 ppm	21	8	ND - 2.10 ppm
2018	0.405 ppm	21	8	ND - 1.90 ppm
2019	0.380 ppm	25	8	ND - 3.20 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date	Lab ID	Result
2014-03-04	1403363-003A	ND
2014-03-04	1403297-003A	ND
2014-03-04	1403360-003A	ND
2014-03-04	1403301-003A	ND
2014-03-04	1403361-003A	ND
2014-03-04	1403299-003A	ND
2014-03-04	1403362-003A	ND
2014-03-04	1403359-003A	ND
2014-03-04	1403357-003A	ND
2014-03-04	1403356-003A	ND
2014-06-11	1406659-003A	ND
2014-06-11	1406663-003A	1.000 ppm
2014-06-11	1406640-003A	ND
2014-06-11	1406647-003A	ND
2014-06-11	1406648-003A	1.10 ppm
2014-06-11	1406641-003A	ND
2014-06-11	1406656-003A	ND
2014-07-14	1407773-003A	1.40 ppm
2014-07-14	1407772-003A	ND
2014-07-14	1407768-003A	ND
2014-07-14	1407770-003A	ND
2014-07-14	1407767-003A	ND
2014-07-14	1407771-003A	ND
2014-07-14	1407775-003A	ND
2014-08-27	1408F87-003A	ND
2015-03-12	1503759-001A	2.10 ppm
2015-03-12	1503763-001A	ND
2015-03-12	1503762-001A	ND
2015-03-12	1503756-001A	ND
2015-03-12	1503767-001A	ND
2015-03-12	1503760-001A	ND
2015-03-12	1503757-001A	ND
2015-03-12	1503764-001A	ND
2015-05-06	1505430-002A	ND
2015-05-06	1505429-002A	ND
2015-05-06	1505432-001A	ND
2015-05-06	1505433-001A	1.50 ppm
2015-05-06	1505424-001A	3.00 ppm
2015-05-06	1505431-001A	ND
2015-05-06	1505425-001A	ND
2015-05-06	1505426-002A	ND
2015-05-06	1505427-001A	ND
2015-05-06	1505428-001A	ND
2015-08-12	1508742-001A	ND
2015-08-12	1508745-001A	ND
2015-08-12	1508741-001A	ND
2015-08-12	1508744-001A	ND
2015-08-12	1508743-001A	ND
2015-10-21	1510B87-001A	ND
2016-03-30	1603E93-002A	ND
2016-03-30	1603E99-001A	ND
2016-03-30	1603E91-002A	ND
2016-03-30	1603E96-002A	ND
2016-05-19	1605A59-002A	0.640 ppm
2016-05-19	1605A60-002A	0.770 ppm
2016-05-19	1605A62-001A	0.900 ppm
2016-05-19	1605A63-001A	0.790 ppm
2016-08-30	1609221-001A	0.580 ppm
2016-08-30	1609283-001A	ND
2016-08-30	1609227-001A	1.80 ppm
2016-08-30	1609225-001A	0.930 ppm
2016-08-30	1609235-001A	ND
2016-08-30	1609236-001A	ND
2016-08-30	1609234-001A	ND
2016-08-30	1609288-001A	ND
2016-08-30	1609286-001A	ND
2016-08-30	1609233-001A	ND
2016-08-30	1609287-001A	ND
2016-09-20	1609E16-001A	2.30 ppm
2017-01-31	1702118-003	ND
2017-01-31	1702117-003	ND
2017-04-04	1704236-003	0.770 ppm
2017-04-04	1704233-003	0.920 ppm
2017-04-04	1704235-003	0.860 ppm
2017-04-04	1704232-003	ND
2017-04-04	1704238-003	ND
2017-05-09	1705628-003	2.10 ppm
2017-05-09	1705624-003	ND
2017-05-09	1705627-003	0.530 ppm
2017-05-09	1705625-003	0.650 ppm
2017-05-09	1705626-003	ND
2017-05-09	1705623-003	ND
2017-06-20	1706C17-003	1.60 ppm
2017-06-20	1706C22-003	0.810 ppm
2017-06-20	1706C21-003	ND
2017-06-20	1706C20-003	ND
2017-06-20	1706C19-003	ND
2017-07-11	1707747-003	ND
2017-10-11	1710842-002	ND
2017-10-17	1710A63-003	ND
2018-01-23	1801D55-001	ND
2018-01-23	1801D57-001	ND
2018-01-23	1801D58-001	ND
2018-01-30	1802075-001	ND
2018-01-30	1802079-001	ND
2018-01-30	1802080-001	1.80 ppm
2018-01-30	1802081-001	0.970 ppm
2018-01-30	1802082-001	ND
2018-01-30	1802150-002	ND
2018-04-11	1804795-002	0.840 ppm
2018-04-11	1804808-001	ND
2018-04-11	1804809-001	ND
2018-04-11	1804810-001	0.880 ppm
2018-04-11	1804811-001	1.000 ppm
2018-04-11	1804829-001	ND
2018-04-11	1804830-001	ND
2018-04-11	1804831-001	ND
2018-06-05	1806352-001	1.90 ppm
2018-06-05	1806360-001	0.580 ppm
2018-06-05	1806367-001	0.530 ppm
2018-10-16	1810B61-001	ND
2019-02-05	1902684-001	ND
2019-02-05	1902686-001	ND
2019-02-05	1902687-001	ND
2019-02-06	1902280-001	ND
2019-02-27	1902C33-003	ND
2019-02-27	1902C34-003	ND
2019-05-01	1905172-001	ND
2019-05-01	1905174-001	0.920 ppm
2019-05-01	1905176-001	1.60 ppm
2019-05-01	1905178-001	ND
2019-05-01	1905182-001	ND
2019-05-15	1905925-002	0.850 ppm
2019-05-15	1905936-001	3.20 ppm
2019-08-14	1908868-003	ND
2019-08-14	1908A99-001	ND
2019-08-14	1908B00-001	ND
2019-11-05	1911434-001	0.560 ppm
2019-11-05	1911435-001	0.670 ppm
2019-11-05	1911437-001	0.880 ppm
2019-11-05	1911438-001	0.830 ppm
2019-11-19	1911981-001	ND
2019-11-19	1911983-001	ND
2019-12-04	1912425-001	ND
2019-12-04	1912426-001	ND
2019-12-04	1912428-001	ND