Know Your Environment. Protect Your Health.

Nitrate and nitrite

Spin Lake Homeowners Association Inc.

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)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.10 ppm111.10 ppm
20192.20 ppm112.20 ppm
20201.14 ppm111.14 ppm
20211.03 ppm111.03 ppm
20220.413 ppm11110.190 ppm - 0.840 ppm
20230.709 ppm1211ND - 1.90 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

ppm = parts per million

All test results

Date Lab ID Result
2018-01-168012425-011.10 ppm
2019-01-239013937-012.20 ppm
2020-03-180033600-011.14 ppm
2021-03-08EC01477-011.03 ppm
2022-03-01FC00261-010.270 ppm
2022-03-14FC02524-010.270 ppm
2022-04-11FD01718-010.220 ppm
2022-05-16FE03088-010.190 ppm
2022-06-13FF02431-010.350 ppm
2022-07-11FG01526-010.440 ppm
2022-08-22FH04584-010.810 ppm
2022-09-26FI04854-010.740 ppm
2022-10-24FJ04230-010.840 ppm
2022-11-28FK04645-010.210 ppm
2022-12-28FL04693-010.200 ppm
2023-01-30GA04621-01ND
2023-02-27GB04622-010.250 ppm
2023-03-27GC04334-010.240 ppm
2023-04-24GD04014-010.310 ppm
2023-05-29GE05236-010.480 ppm
2023-06-27GF05084-011.90 ppm
2023-07-27GG04941-011.05 ppm
2023-08-28GH05458-011.30 ppm
2023-09-28GI05106-011.63 ppm
2023-10-24GJ04369-010.800 ppm
2023-11-20GK03584-010.310 ppm
2023-12-27GL04456-010.240 ppm