Know Your Environment. Protect Your Health.

Nitrate and nitrite

Tangipahoa Parish Water District

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.

 

119

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND380ND
20190.0333 ppm244ND - 0.200 ppm
20200.0368 ppm196ND - 0.200 ppm
20210.150 ppm1211ND - 0.200 ppm
20220.0417 ppm124ND - 0.200 ppm
20230.00714 ppm141ND - 0.1000 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
2018-01-26AE20500ND
2018-01-26AE20501ND
2018-01-26AE20502ND
2018-01-26AE20503ND
2018-01-26AE20504ND
2018-01-26AE20505ND
2018-01-26AE20506ND
2018-01-26AE20507ND
2018-01-26AE20500ND
2018-01-26AE20501ND
2018-01-26AE20502ND
2018-01-26AE20503ND
2018-01-26AE20504ND
2018-01-26AE20505ND
2018-01-26AE20506ND
2018-01-26AE20507ND
2018-01-31AE20508ND
2018-01-31AE20511ND
2018-01-31AE20514ND
2018-01-31AE20517ND
2018-01-31AE20508ND
2018-01-31AE20511ND
2018-01-31AE20514ND
2018-01-31AE20517ND
2018-05-07AE21710ND
2018-05-07AE21713ND
2018-05-07AE21710ND
2018-05-07AE21713ND
2018-12-03B1805766-001ND
2018-12-03B1805766-002ND
2018-12-03B1805766-003ND
2018-12-03B1805766-004ND
2018-12-03B1805766-005ND
2018-12-03B1805766-001ND
2018-12-03B1805766-002ND
2018-12-03B1805766-003ND
2018-12-03B1805766-004ND
2018-12-03B1805766-005ND
2019-01-04B1900144-001ND
2019-01-04B1900144-002ND
2019-01-04B1900144-003ND
2019-01-04B1900144-004ND
2019-01-04B1900144-0050.200 ppm
2019-01-04B1900144-001ND
2019-01-04B1900144-002ND
2019-01-04B1900144-003ND
2019-01-04B1900144-004ND
2019-01-04B1900144-0050.200 ppm
2019-09-05B1904059-001ND
2019-09-05B1904059-002ND
2019-09-05B1904059-003ND
2019-09-05B1904059-004ND
2019-09-05B1904059-005ND
2019-09-05B1904059-0060.200 ppm
2019-09-05B1904059-007ND
2019-09-05B1904059-001ND
2019-09-05B1904059-002ND
2019-09-05B1904059-003ND
2019-09-05B1904059-004ND
2019-09-05B1904059-005ND
2019-09-05B1904059-0060.200 ppm
2019-09-05B1904059-007ND
2020-03-02B2001146-001ND
2020-05-29B2002706-0010.1000 ppm
2020-05-29B2002706-0020.1000 ppm
2020-05-29B2002706-004ND
2020-05-29B2002706-005ND
2020-05-29B2002706-006ND
2020-05-29B2002706-007ND
2020-05-29B2002706-0080.1000 ppm
2020-05-29B2002706-009ND
2020-05-29B2002706-010ND
2020-05-29B2002706-011ND
2020-05-29B2002706-012ND
2020-06-11B2002825-0010.200 ppm
2020-11-16B2006150-007ND
2020-11-16B2006150-008ND
2020-11-16B2006150-0090.1000 ppm
2020-11-16B2006150-010ND
2020-11-16B2006150-011ND
2020-11-16B2006150-0120.1000 ppm
2021-01-14B2100167-0010.200 ppm
2021-01-14B2100167-0020.200 ppm
2021-01-14B2100167-0030.200 ppm
2021-01-14B2100167-0040.200 ppm
2021-01-14B2100167-0050.200 ppm
2021-01-14B2100167-0060.200 ppm
2021-03-18B2101214-0010.200 ppm
2021-11-01B2105891-0060.1000 ppm
2021-11-01B2105891-0070.1000 ppm
2021-11-01B2105891-0080.1000 ppm
2021-11-01B2105891-009ND
2021-11-01B2105891-0100.1000 ppm
2022-05-23B2202479-001ND
2022-05-23B2202479-002ND
2022-05-23B2202479-0030.1000 ppm
2022-05-23B2202479-0040.200 ppm
2022-05-23B2202479-005ND
2022-05-23B2202479-006ND
2022-05-23B2202479-007ND
2022-05-23B2202479-008ND
2022-05-23B2202479-009ND
2022-05-23B2202479-0100.1000 ppm
2022-05-23B2202479-0110.1000 ppm
2022-05-23B2202479-012ND
2023-03-28B2301423-002ND
2023-09-18B2303887-001ND
2023-10-25B2304622-003ND
2023-10-25B2304622-004ND
2023-10-30B2304763-001ND
2023-10-30B2304763-002ND
2023-10-30B2304763-003ND
2023-10-30B2304763-004ND
2023-11-06B2304860-006ND
2023-11-06B2304860-007ND
2023-11-06B2304860-008ND
2023-11-06B2304860-009ND
2023-11-06B2304860-010ND
2023-11-29B2305071-0010.1000 ppm