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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Town of Payson

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

 

85

Samples

0

Samples exceeding legal limit (MCL)

79

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.650 ppm110.650 ppm
2015N/A00N/A
20161.31 ppm3229ND - 4.00 ppm
20171.40 ppm2624ND - 4.10 ppm
20181.35 ppm2625ND - 4.10 ppm
2019N/A00N/A

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The 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

ppm = parts per million

All test results

Date Lab ID Result
2014-10-08550-32949-10.650 ppm
2016-06-01550-64214-50.670 ppm
2016-06-01550-64214-4ND
2016-06-01550-64214-31.30 ppm
2016-06-01550-64214-21.30 ppm
2016-06-01550-64214-14.00 ppm
2016-10-2420161025033810.740 ppm
2016-10-2420161025033311.50 ppm
2016-10-2420161025033411.10 ppm
2016-10-2420161025033511.10 ppm
2016-10-2420161025033611.70 ppm
2016-10-2420161025033711.80 ppm
2016-10-2420161025033911.80 ppm
2016-10-2420161025034011.70 ppm
2016-10-2420161025034111.20 ppm
2016-10-252016102605111ND
2016-10-2520161026050811.50 ppm
2016-10-2520161026050910.630 ppm
2016-10-2520161026051010.810 ppm
2016-10-2520161026051210.540 ppm
2016-10-2520161026051311.90 ppm
2016-10-2520161026051412.90 ppm
2016-10-2520161026051510.770 ppm
2016-10-2520161026051613.80 ppm
2016-10-2620161027032613.60 ppm
2016-10-2620161027032210.740 ppm
2016-10-2620161027032310.890 ppm
2016-10-2620161027032410.320 ppm
2016-10-2620161027032510.810 ppm
2016-10-2620161027032711.20 ppm
2016-10-2620161027032810.940 ppm
2016-10-262016102703291ND
2016-10-2620161027033010.550 ppm
2017-10-24201710250594I4.10 ppm
2017-10-24201710250597I1.30 ppm
2017-10-24201710250598I0.750 ppm
2017-10-24201710250599I0.820 ppm
2017-10-24201710250600I0.820 ppm
2017-10-24201710250601I2.30 ppm
2017-10-24201710250602I3.80 ppm
2017-10-24201710250603I0.820 ppm
2017-10-24201710250604I1.40 ppm
2017-10-24201710250593I0.750 ppm
2017-10-24201710250592I1.90 ppm
2017-10-24201710250395I1.50 ppm
2017-10-24201710250396I1.10 ppm
2017-10-24201710250397I1.70 ppm
2017-10-24201710250398I0.380 ppm
2017-10-24201710250399I0.540 ppm
2017-10-24201710250400I1.20 ppm
2017-10-24201710250401I3.20 ppm
2017-10-24201710250402I1.10 ppm
2017-10-24201710250403IND
2017-10-24201710250404I0.630 ppm
2017-10-24201710250405I1.20 ppm
2017-10-24201710250588I1.70 ppm
2017-10-24201710250589I1.50 ppm
2017-10-24201710250590IND
2017-10-24201710250591I2.00 ppm
2018-11-28550-114040-31.10 ppm
2018-11-28550-114040-11.60 ppm
2018-11-28550-114040-102.50 ppm
2018-11-28550-114040-113.00 ppm
2018-11-28550-114040-120.830 ppm
2018-11-28550-114040-131.80 ppm
2018-11-28550-114040-141.20 ppm
2018-11-28550-114040-21.10 ppm
2018-11-28550-114040-41.60 ppm
2018-11-28550-114040-51.60 ppm
2018-11-28550-114040-60.610 ppm
2018-11-28550-114040-90.380 ppm
2018-11-28550-114040-184.10 ppm
2018-11-29550-114040-231.20 ppm
2018-11-29550-114040-151.90 ppm
2018-11-29550-114040-161.70 ppm
2018-11-29550-114040-170.820 ppm
2018-11-29550-114040-190.330 ppm
2018-11-29550-114040-200.390 ppm
2018-11-29550-114040-211.20 ppm
2018-11-29550-114040-223.10 ppm
2018-11-29550-114040-70.810 ppm
2018-11-29550-114040-80.180 ppm
2018-12-10550-114720-1ND
2018-12-10550-114720-30.800 ppm
2018-12-10550-114720-21.30 ppm