Know Your Environment. Protect Your Health.

Nitrate and nitrite

Regency Park Assisted Living Residence

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.20 ppm54ND - 2.00 ppm
20191.16 ppm551.10 ppm - 1.20 ppm
20201.20 ppm551.000 ppm - 1.30 ppm
20210.350 ppm41ND - 1.40 ppm
2022ND30ND
20230.0400 ppm51ND - 0.200 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
2018-01-10157489_012.00 ppm
2018-04-24159794_011.60 ppm
2018-08-02163668_011.30 ppm
2018-09-25164585_011.10 ppm
2018-10-19165420_01ND
2019-01-16167578_011.20 ppm
2019-04-10169733_011.20 ppm
2019-07-22172137_011.10 ppm
2019-10-17177048-011.10 ppm
2019-12-13179520-011.20 ppm
2020-01-10180678_011.30 ppm
2020-04-06184327_011.30 ppm
2020-04-06184327_021.30 ppm
2020-07-21188510_011.000 ppm
2020-10-07193805_011.10 ppm
2021-01-07198132_011.40 ppm
2021-04-14201944_01ND
2021-07-12206434_01ND
2021-10-27E2200065001ND
2022-01-06215882_01ND
2022-04-12219734_02ND
2022-07-14224185_02ND
2023-01-03232736_01ND
2023-04-18236848-01ND
2023-07-21241343-02ND
2023-10-06245676-01ND
2023-10-18E24001460010.200 ppm