Know Your Environment. Protect Your Health.

Nitrate

Ranches At Maricopa Water

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.

 

95

Samples

21

Samples exceeding legal limit (MCL)

80

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.32 ppm16161.10 ppm - 10.2 ppm
20191.01 ppm1413ND - 2.70 ppm
202011.9 ppm22221.10 ppm - 36.0 ppm
202111.8 ppm1413ND - 31.0 ppm
20221.50 ppm157ND - 15.0 ppm
20230.834 ppm149ND - 8.90 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG 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

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
2018-01-28574816-0028.17 ppm
2018-01-28574816-0012.99 ppm
2018-01-28574816-0143.65 ppm
2018-01-28574816-0134.48 ppm
2018-01-28574816-0125.86 ppm
2018-01-28574816-0115.42 ppm
2018-01-28574816-01010.2 ppm
2018-01-28574816-0093.18 ppm
2018-01-28574816-0077.74 ppm
2018-01-28574816-0065.27 ppm
2018-01-28574816-00510.2 ppm
2018-01-28574816-0044.75 ppm
2018-01-28574816-0034.70 ppm
2018-01-28574816-0085.95 ppm
2018-10-211810-146-011.50 ppm
2018-10-211810-146-021.10 ppm
2019-01-131901-084-130.660 ppm
2019-01-131901-084-142.70 ppm
2019-01-131901-084-121.60 ppm
2019-01-131901-084-110.980 ppm
2019-01-131901-084-101.30 ppm
2019-01-131901-084-090.690 ppm
2019-01-131901-084-080.990 ppm
2019-01-131901-084-06ND
2019-01-131901-084-050.790 ppm
2019-01-131901-084-040.670 ppm
2019-01-131901-084-030.810 ppm
2019-01-131901-084-020.890 ppm
2019-01-131901-084-010.640 ppm
2019-01-131901-084-071.40 ppm
2020-01-14202001210682I6.20 ppm
2020-01-14202001210695I12.0 ppm
2020-01-14202001210690I11.0 ppm
2020-01-14202001210689I8.30 ppm
2020-01-14202001210688I5.20 ppm
2020-01-14202001210687I24.0 ppm
2020-01-14202001210685I8.50 ppm
2020-01-14202001210684I26.0 ppm
2020-01-14202001210683I25.0 ppm
2020-01-14202001210681I6.60 ppm
2020-01-14202001210679I36.0 ppm
2020-01-14202001210678I13.0 ppm
2020-01-14202001210677I13.0 ppm
2020-01-15202001210686I11.0 ppm
2020-03-172020031902314.90 ppm
2020-03-1720200319023011.0 ppm
2020-03-1720200319022810.00 ppm
2020-03-172020031902259.40 ppm
2020-03-172020031902271.10 ppm
2020-03-182020031902294.60 ppm
2020-03-182020031902247.10 ppm
2020-03-182020031902268.80 ppm
2021-01-272101-170-145.90 ppm
2021-01-272101-170-1331.0 ppm
2021-01-272101-170-030.930 ppm
2021-01-272101-170-0419.0 ppm
2021-01-272101-170-065.60 ppm
2021-01-272101-170-0719.0 ppm
2021-01-272101-170-0819.0 ppm
2021-01-272101-170-095.50 ppm
2021-01-272101-170-10ND
2021-01-272101-170-112.30 ppm
2021-01-272101-170-1216.0 ppm
2021-01-282101-170-0114.0 ppm
2021-01-282101-170-0512.0 ppm
2021-01-282101-170-0215.0 ppm
2022-01-262201-159-12ND
2022-01-262201-159-110.970 ppm
2022-01-262201-159-10ND
2022-01-262201-159-09ND
2022-01-262201-159-08ND
2022-01-262201-159-06ND
2022-01-262201-159-051.30 ppm
2022-01-262201-159-040.590 ppm
2022-01-262201-159-03ND
2022-01-262201-159-0215.0 ppm
2022-01-262201-159-012.00 ppm
2022-01-262201-159-07ND
2022-03-132203-091-012.10 ppm
2022-03-132203-091-020.590 ppm
2022-03-132203-091-03ND
2023-02-162302-137-010.260 ppm
2023-02-202302-137-030.160 ppm
2023-02-202302-137-04ND
2023-02-202302-137-051.000 ppm
2023-02-202302-137-060.250 ppm
2023-02-202302-137-07ND
2023-02-202302-137-080.270 ppm
2023-02-202302-137-09ND
2023-02-202302-137-100.360 ppm
2023-02-202302-137-110.190 ppm
2023-02-202302-137-12ND
2023-02-202302-137-13ND
2023-02-202302-137-140.280 ppm
2023-02-202302-137-028.90 ppm