Know Your Environment. Protect Your Health.

Nitrate

Desert Sky Dwid

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.

 

179

Samples

0

Samples exceeding legal limit (MCL)

158

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.10 ppm223.80 ppm - 4.40 ppm
20190.896 ppm3824ND - 4.60 ppm
20201.45 ppm3634ND - 4.77 ppm
20210.461 ppm36360.120 ppm - 1.40 ppm
20220.397 ppm33330.220 ppm - 0.750 ppm
20230.621 ppm3433ND - 4.30 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
2018-07-18201807190397I3.80 ppm
2018-07-18201807190398I4.40 ppm
2019-02-20201902210316I4.50 ppm
2019-02-20201902210317I4.40 ppm
2019-02-2052728-05ND
2019-02-2052728-07ND
2019-02-2052728-08ND
2019-02-2052728-10ND
2019-02-2052728-283.50 ppm
2019-03-1052853-01ND
2019-03-1052853-03ND
2019-03-1052853-040.520 ppm
2019-03-1052853-050.490 ppm
2019-03-1052853-060.650 ppm
2019-03-1052853-070.440 ppm
2019-03-1052853-084.60 ppm
2019-03-1052853-090.240 ppm
2019-03-1052853-104.00 ppm
2019-03-1052853-11ND
2019-03-1052853-120.210 ppm
2019-04-0253068-010.620 ppm
2019-04-0253068-020.390 ppm
2019-04-0253068-03ND
2019-04-0253068-04ND
2019-04-0253068-06ND
2019-04-0253068-070.770 ppm
2019-04-0253068-080.310 ppm
2019-04-0253068-091.60 ppm
2019-04-0253068-100.600 ppm
2019-04-0253068-110.440 ppm
2019-04-0253068-12ND
2019-04-0253068-14ND
2019-04-0253068-15ND
2019-04-0253068-160.260 ppm
2019-04-0253068-171.20 ppm
2019-04-0253068-18ND
2019-04-0253068-191.70 ppm
2019-04-0253068-210.450 ppm
2019-04-0253068-221.30 ppm
2019-04-0253068-230.870 ppm
2020-12-2220L2595-01ND
2020-12-2220L2595-023.70 ppm
2020-12-2220L2595-03ND
2020-12-2220L2595-040.140 ppm
2020-12-2220L2595-050.250 ppm
2020-12-2220L2595-060.250 ppm
2020-12-2220L2595-073.23 ppm
2020-12-2220L2595-080.270 ppm
2020-12-2220L2595-090.150 ppm
2020-12-2220L2595-100.620 ppm
2020-12-2220L2595-110.990 ppm
2020-12-2220L2595-123.68 ppm
2020-12-2220L2595-133.10 ppm
2020-12-2220L2595-143.34 ppm
2020-12-2220L2595-150.460 ppm
2020-12-2220L2595-160.460 ppm
2020-12-2220L2595-172.62 ppm
2020-12-2220L2595-183.74 ppm
2020-12-2220L2595-190.250 ppm
2020-12-2220L2595-203.72 ppm
2020-12-2220L2595-213.28 ppm
2020-12-2220L2595-222.03 ppm
2020-12-2220L2595-230.250 ppm
2020-12-2220L2595-244.77 ppm
2020-12-2220L2595-250.440 ppm
2020-12-2220L2595-261.96 ppm
2020-12-2220L2595-272.37 ppm
2020-12-2220L2595-280.330 ppm
2020-12-2220L2595-290.330 ppm
2020-12-2220L2595-300.450 ppm
2020-12-2220L2595-310.480 ppm
2020-12-2220L2595-320.430 ppm
2020-12-2220L2595-330.540 ppm
2020-12-2220L2595-342.68 ppm
2020-12-2220L2595-350.700 ppm
2020-12-2220L2595-360.140 ppm
2021-12-0921L1322-010.290 ppm
2021-12-0921L1322-020.400 ppm
2021-12-0921L1322-030.290 ppm
2021-12-0921L1322-041.40 ppm
2021-12-0921L1322-050.310 ppm
2021-12-0921L1322-060.280 ppm
2021-12-0921L1322-070.380 ppm
2021-12-0921L1322-080.290 ppm
2021-12-0921L1322-090.420 ppm
2021-12-0921L1322-100.440 ppm
2021-12-0921L1322-110.470 ppm
2021-12-0921L1322-120.440 ppm
2021-12-0921L1322-130.290 ppm
2021-12-0921L1322-140.640 ppm
2021-12-0921L1322-150.660 ppm
2021-12-0921L1322-160.560 ppm
2021-12-0921L1322-170.720 ppm
2021-12-0921L1322-180.510 ppm
2021-12-0921L1322-190.710 ppm
2021-12-0921L1322-200.750 ppm
2021-12-0921L1322-210.750 ppm
2021-12-0921L1322-230.500 ppm
2021-12-0921L1322-240.490 ppm
2021-12-0921L1322-250.680 ppm
2021-12-0921L1322-260.490 ppm
2021-12-0921L1322-270.790 ppm
2021-12-0921L1322-280.120 ppm
2021-12-0921L1322-290.230 ppm
2021-12-0921L1322-300.220 ppm
2021-12-0921L1322-310.300 ppm
2021-12-0921L1322-320.380 ppm
2021-12-0921L1322-330.340 ppm
2021-12-0921L1322-340.370 ppm
2021-12-0921L1322-350.390 ppm
2021-12-0921L1322-360.140 ppm
2021-12-0921L1322-370.150 ppm
2022-01-0422A0425-010.490 ppm
2022-06-15550-185685-10IOC0.290 ppm
2022-06-15550-185685-11IOC0.280 ppm
2022-06-15550-185685-12IOC0.290 ppm
2022-06-15550-185685-13IOC0.680 ppm
2022-06-15550-185685-14IOC0.660 ppm
2022-06-15550-185685-15IOC0.310 ppm
2022-06-15550-185685-16IOC0.310 ppm
2022-06-15550-185685-17IOC0.250 ppm
2022-06-15550-185685-18IOC0.750 ppm
2022-06-15550-185685-19IOC0.400 ppm
2022-06-15550-185685-20IOC0.400 ppm
2022-06-15550-185685-21IOC0.440 ppm
2022-06-15550-185685-22IOC0.230 ppm
2022-06-15550-185685-23IOC0.400 ppm
2022-06-15550-185685-24IOC0.670 ppm
2022-06-15550-185685-25IOC0.400 ppm
2022-06-15550-185685-26IOC0.400 ppm
2022-06-15550-185685-27IOC0.680 ppm
2022-06-15550-185685-28IOC0.220 ppm
2022-06-15550-185685-29IOC0.670 ppm
2022-06-15550-185685-2IOC0.290 ppm
2022-06-15550-185685-30IOC0.390 ppm
2022-06-15550-185685-31IOC0.410 ppm
2022-06-15550-185685-32IOC0.390 ppm
2022-06-15550-185685-33IOC0.390 ppm
2022-06-15550-185685-3IOC0.290 ppm
2022-06-15550-185685-4IOC0.290 ppm
2022-06-15550-185685-5IOC0.280 ppm
2022-06-15550-185685-6IOC0.290 ppm
2022-06-15550-185685-7IOC0.280 ppm
2022-06-15550-185685-8IOC0.290 ppm
2022-06-15550-185685-9IOC0.280 ppm
2023-06-23550-203846-10.280 ppm
2023-06-23550-203846-100.430 ppm
2023-06-23550-203846-110.320 ppm
2023-06-23550-203846-120.470 ppm
2023-06-23550-203846-130.260 ppm
2023-06-23550-203846-140.510 ppm
2023-06-23550-203846-150.270 ppm
2023-06-23550-203846-160.530 ppm
2023-06-23550-203846-170.310 ppm
2023-06-23550-203846-184.30 ppm
2023-06-23550-203846-190.530 ppm
2023-06-23550-203846-20.290 ppm
2023-06-23550-203846-200.310 ppm
2023-06-23550-203846-210.240 ppm
2023-06-23550-203846-220.530 ppm
2023-06-23550-203846-230.520 ppm
2023-06-23550-203846-240.530 ppm
2023-06-23550-203846-250.500 ppm
2023-06-23550-203846-260.540 ppm
2023-06-23550-203846-270.520 ppm
2023-06-23550-203846-280.460 ppm
2023-06-23550-203846-290.500 ppm
2023-06-23550-203846-30.520 ppm
2023-06-23550-203846-300.200 ppm
2023-06-23550-203846-310.490 ppm
2023-06-23550-203846-320.280 ppm
2023-06-23550-203846-330.500 ppm
2023-06-23550-203846-40.520 ppm
2023-06-23550-203846-53.60 ppm
2023-06-23550-203846-60.420 ppm
2023-06-23550-203846-70.480 ppm
2023-06-23550-203846-80.480 ppm
2023-06-23550-203846-90.490 ppm
2023-07-1323G1688-02ND