Know Your Environment. Protect Your Health.

Nitrate and nitrite

Adams County W/a #2-south

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0780 ppm51ND - 0.390 ppm
20190.154 ppm53ND - 0.260 ppm
20200.318 ppm53ND - 0.880 ppm
20210.231 ppm52ND - 0.857 ppm
20220.360 ppm53ND - 0.756 ppm
20230.229 ppm52ND - 0.823 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

ppm = parts per million

All test results

Date Lab ID Result
2018-01-22180123-007NIND
2018-01-22180123-008NIND
2018-01-22180123-009NIND
2018-01-22180123-010NIND
2018-01-22180123-006NI0.390 ppm
2019-01-22190123-039NI0.260 ppm
2019-01-22190123-035NIND
2019-01-22190123-033NIND
2019-01-22190123-028NI0.250 ppm
2019-01-22190123-027NI0.260 ppm
2020-01-13200114-064NIND
2020-01-13200114-065NIND
2020-01-13200114-066NI0.370 ppm
2020-01-13200114-067NI0.880 ppm
2020-01-13200114-068NI0.340 ppm
2021-01-19NI-210120-0130.297 ppm
2021-01-19NI-210120-017ND
2021-01-19NI-210120-0160.857 ppm
2021-01-19NI-210120-015ND
2021-01-19NI-210120-014ND
2022-01-04NI-220105-0540.578 ppm
2022-01-04NI-220105-0550.468 ppm
2022-01-04NI-220105-0560.756 ppm
2022-01-04NI-220105-057ND
2022-01-04NI-220105-058ND
2023-01-09NI-230110-006ND
2023-01-09NI-230110-0070.322 ppm
2023-01-09NI-230110-0080.823 ppm
2023-01-09NI-230110-009ND
2023-01-09NI-230110-010ND