Nitrate

City of Banning

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

128

Samples

Samples exceeding legal limit (MCL)

115

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	N/A	0	0	N/A
2014	1.25 ppm	25	23	ND - 2.48 ppm
2015	1.31 ppm	18	16	ND - 2.17 ppm
2016	1.18 ppm	22	22	0.240 ppm - 2.10 ppm
2017	1.06 ppm	21	19	ND - 2.20 ppm
2018	1.30 ppm	22	21	ND - 2.30 ppm
2019	1.05 ppm	20	14	ND - 2.20 ppm

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
2014-03-13	4790-003-0900	2.21 ppm
2014-03-13	4790-008-1000	0.384 ppm
2014-03-13	4790-016-1400	1.11 ppm
2014-03-18	4790-014-1300	1.92 ppm
2014-03-18	4790-015-0830	1.92 ppm
2014-03-18	4790-017-1000	1.47 ppm
2014-03-19	4790-009-1000	0.316 ppm
2014-05-21	4790-001-0915	0.926 ppm
2014-05-21	4790-007-0845	0.361 ppm
2014-05-21	4790-010-0800	0.226 ppm
2014-05-21	4790-017-1010	1.49 ppm
2014-05-21	4790-018-0945	1.56 ppm
2014-05-28	4790-002-1430	2.15 ppm
2014-05-28	4790-003-1445	2.48 ppm
2014-05-28	4790-008-1400	0.452 ppm
2014-05-28	4790-009-1300	0.248 ppm
2014-05-28	4790-011-1315	ND
2014-05-28	4790-012-1330	ND
2014-05-28	4790-014-0845	2.48 ppm
2014-05-28	4790-015-0730	1.69 ppm
2014-05-28	4790-016-0855	1.06 ppm
2014-05-28	4790-027-0800	1.02 ppm
2014-05-28	4790-028-0820	1.81 ppm
2014-06-09	4790-026-1230	2.26 ppm
2014-06-18	4790-021-0850	1.81 ppm
2015-03-18	4790-018-1030	1.85 ppm
2015-03-18	4790-021-0930	1.63 ppm
2015-03-19	4790-026-1340	2.17 ppm
2015-04-21	4790-007-0840	0.407 ppm
2015-04-21	4790-010-0820	ND
2015-04-21	4790-015-1010	1.60 ppm
2015-04-21	4790-018-0925	1.94 ppm
2015-04-21	4790-021-1100	1.76 ppm
2015-04-21	4790-027-0940	0.971 ppm
2015-04-29	4790-001-0950	0.813 ppm
2015-04-29	4790-002-1000	1.54 ppm
2015-04-29	4790-003-1010	1.74 ppm
2015-04-29	4790-008-1325	0.384 ppm
2015-04-29	4790-009-1340	ND
2015-04-29	4790-014-0900	1.83 ppm
2015-04-29	4790-016-0910	1.13 ppm
2015-04-29	4790-026-1040	2.06 ppm
2015-04-29	4790-028-1050	1.76 ppm
2016-02-17	4790-007-1100	0.400 ppm
2016-02-17	4790-010-1000	0.240 ppm
2016-02-25	4790-001-1030	0.780 ppm
2016-02-25	4790-002-0930	1.50 ppm
2016-03-08	4790-017-0910	1.30 ppm
2016-03-09	4790-028-0930	1.60 ppm
2016-04-22	4790-001-0915	0.860 ppm
2016-04-22	4790-007-0900	0.410 ppm
2016-04-22	4790-010-0800	0.250 ppm
2016-04-22	4790-015-1015	1.60 ppm
2016-04-22	4790-017-1000	1.50 ppm
2016-04-22	4790-018-0935	2.00 ppm
2016-04-27	4790-002-1120	1.60 ppm
2016-04-27	4790-003-1130	1.80 ppm
2016-04-27	4790-008-1350	0.430 ppm
2016-04-27	4790-009-1330	0.240 ppm
2016-04-27	4790-014-1200	1.80 ppm
2016-04-27	4790-016-1030	0.890 ppm
2016-04-27	4790-021-1000	2.10 ppm
2016-04-27	4790-028-0910	1.70 ppm
2016-06-24	4790-026-1300	2.00 ppm
2016-08-25	4790-027-0930	1.000 ppm
2017-03-06	4790-008-1130	0.560 ppm
2017-03-06	4790-009-1230	ND
2017-03-06	4790-016-0900	0.790 ppm
2017-03-08	4790-015-1100	1.60 ppm
2017-03-08	4790-017-0930	1.40 ppm
2017-04-25	4790-007-0844	0.760 ppm
2017-04-25	4790-010-0850	0.370 ppm
2017-04-25	4790-015-1202	1.80 ppm
2017-04-25	4790-017-1042	1.60 ppm
2017-04-25	4790-027-1236	1.000 ppm
2017-04-26	4790-014-1033	1.90 ppm
2017-04-26	4790-016-1020	0.910 ppm
2017-04-26	4790-018-0805	1.60 ppm
2017-04-26	4790-021-1010	2.20 ppm
2017-04-26	4790-028-0825	1.90 ppm
2017-04-27	4790-001-0703	0.930 ppm
2017-04-27	4790-002-0910	1.90 ppm
2017-04-27	4790-008-0850	0.440 ppm
2017-04-27	4790-009-0832	ND
2017-05-11	4790-011-1245	0.320 ppm
2017-05-11	4790-012-1330	0.350 ppm
2018-02-14	4790-018-0830	2.00 ppm
2018-02-14	4790-021-0930	2.20 ppm
2018-05-10	4790-026-1255	2.30 ppm
2018-05-10	4790-026-1320	2.10 ppm
2018-05-31	4790-003-0930	1.40 ppm
2018-05-31	4790-003-1000	1.40 ppm
2018-06-13	4790-001-1027	1.30 ppm
2018-06-13	4790-002-1300	1.30 ppm
2018-06-13	4790-007-1059	0.440 ppm
2018-06-13	4790-008-1111	0.360 ppm
2018-06-13	4790-009-1135	ND
2018-06-13	4790-010-1200	0.270 ppm
2018-06-13	4790-011-1208	0.250 ppm
2018-06-13	4790-012-1218	0.230 ppm
2018-06-13	4790-014-0955	2.00 ppm
2018-06-13	4790-015-0910	1.80 ppm
2018-06-13	4790-016-0934	1.10 ppm
2018-06-13	4790-017-0818	1.60 ppm
2018-06-13	4790-018-0804	2.00 ppm
2018-06-13	4790-021-1003	1.90 ppm
2018-06-13	4790-027-0840	1.000 ppm
2018-06-13	4790-028-0855	1.60 ppm
2019-01-23	4790-001-1038	1.000 ppm
2019-01-23	4790-002-1020	1.50 ppm
2019-01-23	4790-003-1005	1.60 ppm
2019-01-23	4790-007-1100	ND
2019-01-23	4790-008-1115	ND
2019-01-23	4790-010-1135	ND
2019-01-23	4790-011-1150	ND
2019-01-23	4790-014-0940	2.00 ppm
2019-01-23	4790-015-1300	1.80 ppm
2019-01-23	4790-016-0915	0.950 ppm
2019-01-23	4790-018-0820	1.70 ppm
2019-01-23	4790-021-0925	2.20 ppm
2019-01-23	4790-028-0840	1.60 ppm
2019-01-24	4790-017-0835	1.20 ppm
2019-01-24	4790-026-0955	2.10 ppm
2019-01-24	4790-027-0940	0.790 ppm
2019-01-30	4790-027-1230	0.910 ppm
2019-01-30	4790-028-1130	1.60 ppm
2019-02-07	4790-010-1000	ND
2019-02-07	4790-027-0900	ND