Nitrate
Macomb
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.662 ppm | 28 | 28 | 0.110 ppm - 2.00 ppm |
2015 | 1.63 ppm | 28 | 28 | 0.0700 ppm - 5.80 ppm |
2016 | 1.84 ppm | 28 | 28 | 0.0800 ppm - 5.70 ppm |
2017 | 1.55 ppm | 28 | 28 | 0.160 ppm - 5.20 ppm |
2018 | 1.54 ppm | 27 | 27 | 0.0900 ppm - 4.60 ppm |
2019 | 2.28 ppm | 28 | 28 | 0.150 ppm - 4.90 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 |
---|---|---|
2014-01-08 | 4010742-01 | 0.110 ppm |
2014-01-28 | 4013489-01 | 0.350 ppm |
2014-02-03 | 4020272-01 | 0.340 ppm |
2014-02-10 | 4021126-01 | 0.350 ppm |
2014-02-18 | 4022269-01 | 0.300 ppm |
2014-03-03 | 4030210-01 | 0.580 ppm |
2014-03-17 | 4032190-01 | 0.500 ppm |
2014-04-02 | 4040687-01 | 1.000 ppm |
2014-04-14 | 4042422-01 | 0.790 ppm |
2014-04-14 | 4042443-01 | 0.790 ppm |
2014-05-05 | 4050602-01 | 0.280 ppm |
2014-05-19 | 4052844-01 | 0.360 ppm |
2014-06-02 | 4060275-01 | 0.150 ppm |
2014-06-16 | 4062503-01 | 0.950 ppm |
2014-07-07 | 4071031-01 | 0.210 ppm |
2014-07-21 | 4073363-01 | 0.140 ppm |
2014-08-04 | 4080551-01 | 0.140 ppm |
2014-08-06 | 4081429-01 | 0.120 ppm |
2014-08-18 | 4083426-01 | 0.130 ppm |
2014-09-03 | 4090702-01 | 0.110 ppm |
2014-09-15 | 4092321-01 | 0.810 ppm |
2014-10-06 | 4101081-01 | 0.810 ppm |
2014-10-06 | 4101078-01 | 0.810 ppm |
2014-10-20 | 4103257-01 | 1.50 ppm |
2014-11-03 | 4110304-01 | 1.80 ppm |
2014-11-17 | 4112241-01 | 2.00 ppm |
2014-12-01 | 4120238-01 | 1.50 ppm |
2014-12-15 | 4122451-01 | 1.60 ppm |
2015-01-05 | 5010368-01 | 1.10 ppm |
2015-01-21 | 5013046-01 | 2.00 ppm |
2015-01-26 | 5013467-01 | 2.10 ppm |
2015-02-04 | 5020515-01 | 1.90 ppm |
2015-02-18 | 5022509-01 | 2.00 ppm |
2015-03-02 | 5030052-01 | 1.80 ppm |
2015-03-16 | 5032274-01 | 1.80 ppm |
2015-04-06 | 5040886-01 | 1.30 ppm |
2015-04-20 | 5043185-01 | 0.620 ppm |
2015-04-27 | 5044088-01 | 0.430 ppm |
2015-05-04 | 5050487-01 | 0.400 ppm |
2015-05-18 | 5052773-01 | 1.20 ppm |
2015-06-01 | 5060316-01 | 0.750 ppm |
2015-06-15 | 5062634-01 | 1.80 ppm |
2015-07-06 | 5070891-01 | 4.10 ppm |
2015-07-20 | 5073373-01 | 4.20 ppm |
2015-08-03 | 5080080-01 | 2.70 ppm |
2015-08-17 | 5083140-01 | 1.70 ppm |
2015-08-17 | 5083144-01 | 1.60 ppm |
2015-09-01 | 5090434-01 | 0.760 ppm |
2015-09-14 | 5092329-01 | 0.440 ppm |
2015-10-12 | 5101849-01 | 0.0700 ppm |
2015-10-12 | 5101852-01 | 0.0700 ppm |
2015-10-21 | 5103263-01 | 0.170 ppm |
2015-11-02 | 5110197-01 | 0.300 ppm |
2015-11-16 | 5112486-01 | 0.0900 ppm |
2015-12-02 | 5120504-01 | 4.30 ppm |
2015-12-16 | 5122735-01 | 5.80 ppm |
2016-01-04 | 6010129-01 | 3.30 ppm |
2016-01-20 | 6012823-01 | 4.30 ppm |
2016-01-25 | 6013195-01 | 5.70 ppm |
2016-02-01 | 6020131-01 | 4.00 ppm |
2016-02-16 | 6022511-01 | 5.60 ppm |
2016-03-07 | 6031140-01 | 4.40 ppm |
2016-03-21 | 6033188-01 | 3.70 ppm |
2016-04-04 | 6040289-01 | 2.90 ppm |
2016-04-04 | 6040293-01 | 2.80 ppm |
2016-04-18 | 6042943-01 | 2.30 ppm |
2016-05-02 | 6050268-01 | 1.30 ppm |
2016-05-16 | 6052456-01 | 1.40 ppm |
2016-06-06 | 6060913-01 | 1.40 ppm |
2016-06-20 | 6063170-01 | 1.20 ppm |
2016-07-05 | 6070512-01 | 0.410 ppm |
2016-07-05 | 6070613-01 | 0.390 ppm |
2016-07-18 | 6073017-01 | 0.110 ppm |
2016-08-01 | 6080215-01 | 0.0800 ppm |
2016-08-16 | 6083213-01 | 0.330 ppm |
2016-09-07 | 6091052-01 | 0.180 ppm |
2016-09-20 | 6093306-01 | 0.290 ppm |
2016-10-03 | 6100292-01 | 0.240 ppm |
2016-10-03 | 6100345-01 | 0.230 ppm |
2016-10-17 | 6102755-01 | 0.510 ppm |
2016-11-07 | 6111212-01 | 0.590 ppm |
2016-11-16 | 6112719-01 | 1.10 ppm |
2016-12-05 | 6120602-01 | 1.40 ppm |
2016-12-19 | 6122553-01 | 1.40 ppm |
2017-01-09 | 7011163-01 | 1.40 ppm |
2017-01-17 | 7012447-01 | 1.50 ppm |
2017-01-17 | 7012452-01 | 1.50 ppm |
2017-02-06 | 7020862-01 | 2.80 ppm |
2017-02-21 | 7023195-01 | 2.40 ppm |
2017-03-06 | 7030776-01 | 2.00 ppm |
2017-03-20 | 7032814-01 | 1.40 ppm |
2017-04-03 | 7040333-01 | 1.60 ppm |
2017-04-03 | 7040329-01 | 1.50 ppm |
2017-04-17 | 7042564-01 | 3.40 ppm |
2017-05-01 | 7050318-01 | 2.50 ppm |
2017-05-22 | 7053965-01 | 5.20 ppm |
2017-06-05 | 7060754-01 | 4.90 ppm |
2017-06-19 | 7063498-01 | 3.70 ppm |
2017-07-10 | 7071534-01 | 1.50 ppm |
2017-07-10 | 7071537-01 | 1.50 ppm |
2017-07-17 | 7073381-01 | 0.930 ppm |
2017-08-07 | 7081594-01 | 0.210 ppm |
2017-08-22 | 7084351-01 | 0.160 ppm |
2017-09-11 | 7091640-01 | 0.310 ppm |
2017-09-18 | 7093072-01 | 0.180 ppm |
2017-10-09 | 7101606-01 | 0.530 ppm |
2017-10-09 | 7101635-01 | 0.540 ppm |
2017-10-16 | 7102914-01 | 0.490 ppm |
2017-11-06 | 7110987-01 | 0.380 ppm |
2017-11-20 | 7113618-01 | 0.250 ppm |
2017-12-04 | 7120259-01 | 0.300 ppm |
2017-12-18 | 7123175-01 | 0.210 ppm |
2018-01-08 | 8010886-01 | 0.430 ppm |
2018-01-08 | 8010891-01 | 0.430 ppm |
2018-01-22 | 8013387-01 | 0.390 ppm |
2018-02-05 | 8020576-01 | 0.410 ppm |
2018-02-21 | 8023551-01 | 0.430 ppm |
2018-03-05 | 8030627-01 | 1.90 ppm |
2018-03-19 | 8033246-01 | 3.40 ppm |
2018-04-02 | 8040209-01 | 4.50 ppm |
2018-04-02 | 8040251-01 | 4.60 ppm |
2018-04-16 | 8042987-01 | 3.30 ppm |
2018-05-09 | 8052028-01 | 2.90 ppm |
2018-05-16 | 8053254-01 | 2.10 ppm |
2018-06-04 | 8060466-01 | 0.530 ppm |
2018-06-18 | 8063272-01 | 0.160 ppm |
2018-07-09 | 8071359-01 | 0.110 ppm |
2018-07-16 | 8072993-01 | 0.0900 ppm |
2018-08-06 | 8080942-01 | 0.140 ppm |
2018-08-20 | 8083944-01 | 0.150 ppm |
2018-09-10 | 8091582-01 | 0.270 ppm |
2018-09-17 | 8092960-01 | 0.290 ppm |
2018-10-01 | 8100348-01 | 0.350 ppm |
2018-10-15 | 8103046-01 | 2.10 ppm |
2018-10-15 | 8103119-01 | 2.10 ppm |
2018-11-05 | 8110757-01 | 2.40 ppm |
2018-11-19 | 8113414-01 | 2.10 ppm |
2018-12-03 | 8120088-01 | 2.10 ppm |
2018-12-17 | 8122983-01 | 3.80 ppm |
2019-01-07 | 9010815-01 | 3.10 ppm |
2019-01-07 | 9010821-01 | 3.20 ppm |
2019-01-22 | 9013472-01 | 3.30 ppm |
2019-02-04 | 9020245-01 | 3.60 ppm |
2019-02-19 | 9023105-01 | 4.20 ppm |
2019-03-04 | 9030212-01 | 4.00 ppm |
2019-03-18 | 9032976-01 | 1.50 ppm |
2019-04-01 | 9040277-01 | 2.20 ppm |
2019-04-01 | 9040297-01 | 2.30 ppm |
2019-04-22 | 9044711-01 | 3.70 ppm |
2019-05-06 | 9051284-01 | 4.90 ppm |
2019-05-20 | 9054148-01 | 4.60 ppm |
2019-06-03 | 9060363-01 | 2.70 ppm |
2019-06-17 | 9063054-01 | 3.50 ppm |
2019-07-01 | 9070320-01 | 3.90 ppm |
2019-07-01 | 9070374-01 | 4.10 ppm |
2019-07-16 | 9073568-01 | 2.40 ppm |
2019-08-05 | 9080763-01 | 0.690 ppm |
2019-08-19 | 9084110-01 | 0.350 ppm |
2019-09-03 | 9090399-01 | 0.440 ppm |
2019-09-16 | 9093080-01 | 0.150 ppm |
2019-10-07 | 9101574-01 | 0.350 ppm |
2019-10-07 | 9101641-01 | 0.340 ppm |
2019-10-21 | 9104206-01 | 0.750 ppm |
2019-11-06 | 9111041-01 | 0.410 ppm |
2019-11-25 | 9114529-01 | 0.730 ppm |
2019-12-16 | 9123103-01 | 1.20 ppm |
2019-12-16 | 9123104-01 | 1.20 ppm |