Know Your Environment. Protect Your Health.

Heptachlor

City of Krum

NOTE: City of Krum purchases water from Utrwd Regional Water Treatment Plant which is required to test for heptachlor. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.

Heptachlor is an insecticide used for termite control until 1988. It is linked to cancer, hormone disruption and neurotoxicity.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND30ND
2020ND10ND
2021ND20ND
2022ND30ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.008 ppb

The EWG Health Guideline of 0.008 ppb for heptachlor was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 0.4 ppb

The legal limit for heptachlor, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to heptachlor exposure.

ppb = parts per billion

All test results

NOTE: City of Krum purchases water from Utrwd Regional Water Treatment Plant which is required to test for heptachlor. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.

Date Lab ID Result
2018-02-13Q1805957001ND
2018-06-05Q1822319001ND
2018-09-13Q1836570003ND
2018-09-25Q1838256001ND
2019-03-07Q1909910007ND
2019-06-24Q1939574001ND
2019-09-26Q1969362001ND
2019-10-02Q1971112001ND
2019-12-18Q1980808001ND
2020-03-09Q2008448001ND
2020-05-20Q2020089001ND
2020-08-18Q2032859001ND
2020-08-18Q2032859006ND
2020-11-04Q2042753001ND
2021-02-23Q2104596001ND
2021-06-22Q2116334001ND
2021-09-27Q2126305001ND
2021-09-27Q2126305002ND
2021-11-12Q2131799001ND
2022-01-25Q2202436001ND
2022-06-21Q2217160002ND
2022-09-15Q2227673007ND
2022-09-15Q2227673008ND
2022-11-22Q2235058001ND
2023-03-07Q2308901002ND
2023-06-13Q2322487001ND
2023-08-02Q2331445005ND
2023-08-02Q2331445006ND
2023-11-10Q2348307001ND