Nitrate
Rio Linda/Alverta Community Water District
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 1.14 ppm | 9 | 8 | ND - 2.48 ppm |
2015 | 1.29 ppm | 11 | 10 | ND - 2.71 ppm |
2016 | 1.01 ppm | 10 | 9 | ND - 2.40 ppm |
2017 | 1.08 ppm | 11 | 10 | ND - 2.60 ppm |
2018 | 1.24 ppm | 10 | 9 | ND - 2.70 ppm |
2019 | 1.02 ppm | 10 | 9 | ND - 2.60 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 |
---|---|---|
2014-07-23 | 5810-031-0932 | ND |
2014-07-23 | 5810-025-1235 | 0.813 ppm |
2014-07-23 | 5810-022-1215 | 0.949 ppm |
2014-07-23 | 5810-021-1044 | 1.04 ppm |
2014-07-23 | 5810-020-1015 | 0.700 ppm |
2014-07-23 | 5810-019-1306 | 2.48 ppm |
2014-07-23 | 5810-018-0904 | 0.768 ppm |
2014-07-23 | 5810-017-0850 | 1.42 ppm |
2014-07-23 | 5810-016-1145 | 2.06 ppm |
2015-01-14 | 5810-023-0830 | 2.71 ppm |
2015-07-30 | 5810-016-1205 | 2.48 ppm |
2015-07-30 | 5810-031-0950 | ND |
2015-07-30 | 5810-023-1321 | 1.13 ppm |
2015-07-30 | 5810-022-1232 | 0.994 ppm |
2015-07-30 | 5810-021-1126 | 0.994 ppm |
2015-07-30 | 5810-020-1053 | 0.633 ppm |
2015-07-30 | 5810-019-1300 | 2.48 ppm |
2015-07-30 | 5810-017-0920 | 1.38 ppm |
2015-09-17 | 5810-025-0918 | 0.730 ppm |
2015-10-28 | 5810-018-0929 | 0.640 ppm |
2016-07-14 | 5810-019-1411 | 2.40 ppm |
2016-07-14 | 5810-016-1246 | 2.00 ppm |
2016-07-14 | 5810-017-0940 | 1.20 ppm |
2016-07-14 | 5810-031-1010 | ND |
2016-07-14 | 5810-025-1335 | 0.610 ppm |
2016-07-14 | 5810-023-1430 | 1.30 ppm |
2016-07-14 | 5810-018-0953 | 0.550 ppm |
2016-07-14 | 5810-022-1313 | 0.710 ppm |
2016-07-14 | 5810-021-1206 | 0.820 ppm |
2016-07-14 | 5810-020-1123 | 0.480 ppm |
2017-07-27 | 5810-025-1125 | 0.730 ppm |
2017-07-27 | 5810-003-0856 | 0.710 ppm |
2017-07-27 | 5810-019-1156 | 2.60 ppm |
2017-07-27 | 5810-016-1040 | 2.40 ppm |
2017-07-27 | 5810-017-0800 | 1.40 ppm |
2017-07-27 | 5810-031-0830 | ND |
2017-07-27 | 5810-021-0956 | 0.980 ppm |
2017-07-27 | 5810-020-0925 | 0.590 ppm |
2017-07-27 | 5810-023-1015 | 0.900 ppm |
2017-07-27 | 5810-018-0817 | 0.680 ppm |
2017-07-27 | 5810-022-1105 | 0.880 ppm |
2018-07-25 | 5810-031-1007 | ND |
2018-07-25 | 5810-021-1212 | 0.880 ppm |
2018-07-25 | 5810-016-1257 | 2.50 ppm |
2018-07-25 | 5810-019-1355 | 2.70 ppm |
2018-07-25 | 5810-017-0922 | 1.20 ppm |
2018-07-25 | 5810-020-1130 | 0.500 ppm |
2018-07-25 | 5810-022-1333 | 0.950 ppm |
2018-07-25 | 5810-025-0828 | 0.650 ppm |
2018-07-25 | 5810-018-0945 | 0.560 ppm |
2018-07-25 | 5810-023-0805 | 2.50 ppm |
2019-07-18 | 5810-018-1016 | 0.560 ppm |
2019-07-18 | 5810-017-0950 | 1.10 ppm |
2019-07-18 | 5810-025-1030 | 0.640 ppm |
2019-07-18 | 5810-031-0925 | ND |
2019-07-18 | 5810-022-1117 | 0.880 ppm |
2019-07-18 | 5810-019-1057 | 2.60 ppm |
2019-07-18 | 5810-016-1140 | 2.30 ppm |
2019-07-18 | 5810-020-1225 | 0.500 ppm |
2019-07-18 | 5810-023-0900 | 0.760 ppm |
2019-07-18 | 5810-021-1248 | 0.900 ppm |