Endothall
Meridian Water Department
Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 17 | 0 | ND |
| 2019 | ND | 19 | 0 | ND |
| 2020 | ND | 15 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 31 | 0 | ND |
| 2023 | ND | 52 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 94 ppb
The EWG Health Guideline of 94 ppb for endothall 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 harm to the stomach and intestines.
EPA Maximum Contaminant
Level (MCL): 100 ppb
The legal limit for endothall, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-30 | S1804235 | ND |
| 2018-04-10 | S201804120311 | ND |
| 2018-05-08 | S201805100879 | ND |
| 2018-05-08 | S201805100873 | ND |
| 2018-05-08 | S201805100870 | ND |
| 2018-05-08 | S201805100876 | ND |
| 2018-05-08 | S201805100878 | ND |
| 2018-05-08 | S201805100872 | ND |
| 2018-05-08 | S201805100877 | ND |
| 2018-05-09 | S201805100996 | ND |
| 2018-05-09 | S201805100997 | ND |
| 2018-07-09 | S201807111095 | ND |
| 2018-07-09 | S201807111096 | ND |
| 2018-10-29 | S201810300481 | ND |
| 2018-11-05 | S201811060665 | ND |
| 2018-11-26 | 201811270590 | ND |
| 2018-11-26 | S201811270590 | ND |
| 2019-01-28 | S201901290168 | ND |
| 2019-02-06 | S201902070845 | ND |
| 2019-03-04 | S201903050292 | ND |
| 2019-04-09 | 201904100430A | ND |
| 2019-04-09 | 201904100102A | ND |
| 2019-05-09 | S201905100171 | ND |
| 2019-05-09 | 201907160181 | ND |
| 2019-05-28 | 201905290111 | ND |
| 2019-06-06 | S201907160184 | ND |
| 2019-06-06 | 201907160184 | ND |
| 2019-06-17 | 201906180390 | ND |
| 2019-06-17 | 201906180256 | ND |
| 2019-06-17 | S201906180256 | ND |
| 2019-06-17 | S201906180390 | ND |
| 2019-06-18 | 201906190426 | ND |
| 2019-08-27 | 201908280395 | ND |
| 2019-09-18 | 201909190329 | ND |
| 2019-12-10 | S201912110681 | ND |
| 2019-12-16 | 201912170166 | ND |
| 2020-03-10 | 202003110242 | ND |
| 2020-03-17 | 202003180341 | ND |
| 2020-03-17 | 202003180445 | ND |
| 2020-03-18 | 202003190169 | ND |
| 2020-04-07 | 202004080530 | ND |
| 2020-04-07 | 202004080558 | ND |
| 2020-04-14 | 202004150455 | ND |
| 2020-04-14 | 202004160513 | ND |
| 2020-06-04 | 202006050260 | ND |
| 2020-11-18 | 202011190532 | ND |
| 2020-11-18 | 202011190533 | ND |
| 2020-11-23 | 202011240344 | ND |
| 2020-11-23 | 202011240342 | ND |
| 2020-11-24 | 202011250284 | ND |
| 2020-12-02 | 202012030482 | ND |
| 2021-01-20 | 202101210278 | ND |
| 2021-01-26 | 202101270562 | ND |
| 2021-01-26 | 202101270299 | ND |
| 2021-01-26 | 202101270561 | ND |
| 2021-07-21 | 202107220276 | ND |
| 2021-11-16 | 202111170684 | ND |
| 2022-02-15 | 202202170046 | ND |
| 2022-02-15 | 202202170047 | ND |
| 2022-02-15 | 202202160929 | ND |
| 2022-02-15 | 202202160930 | ND |
| 2022-02-22 | 202202231260 | ND |
| 2022-02-22 | 202202231261 | ND |
| 2022-02-22 | 202202231263 | ND |
| 2022-02-22 | 202202231264 | ND |
| 2022-02-28 | 202203030667 | ND |
| 2022-02-28 | 202203030668 | ND |
| 2022-03-01 | 202203020993 | ND |
| 2022-03-01 | 202203020994 | ND |
| 2022-03-02 | 202203030898 | ND |
| 2022-03-07 | 202203080707 | ND |
| 2022-03-07 | 202203080708 | ND |
| 2022-03-07 | 202203080716 | ND |
| 2022-03-07 | 202203080717 | ND |
| 2022-03-07 | 202203090090 | ND |
| 2022-03-07 | 202203090091 | ND |
| 2022-03-07 | 202203090092 | ND |
| 2022-03-08 | 202203100069 | ND |
| 2022-04-12 | 202204130784 | ND |
| 2022-06-30 | S2231461 | ND |
| 2022-08-02 | 380-14561-1 | ND |
| 2022-10-12 | 380-24415-2 | ND |
| 2022-11-16 | 380-28629-1 | ND |
| 2022-11-16 | 380-28732-1 | ND |
| 2022-12-19 | 380-31949-1 | ND |
| 2022-12-19 | 380-31896-1 | ND |
| 2022-12-19 | 380-31915-1 | ND |
| 2022-12-20 | 380-32187-1 | ND |
| 2023-01-11 | 380-34262-2 | ND |
| 2023-06-05 | 380-49974-4 | ND |
| 2023-08-01 | 380-57235-1 | ND |
| 2023-08-02 | 380-57434-1 | ND |
| 2023-08-02 | 380-57496-1 | ND |
| 2023-08-02 | 380-57460-1 | ND |
| 2023-08-02 | 380-57439-1 | ND |
| 2023-08-02 | 380-57437-1 | ND |
| 2023-08-02 | 380-57464-1 | ND |
| 2023-08-02 | 380-57431-1AA | ND |
| 2023-08-07 | 380-57977-1 | ND |
| 2023-08-07 | 380-57957-1 | ND |
| 2023-08-07 | 380-57974-1 | ND |
| 2023-08-07 | 380-57897-1 | ND |
| 2023-08-07 | 380-57894-1 | ND |
| 2023-08-07 | 380-57899-1 | ND |
| 2023-08-09 | 380-58781-1 | ND |
| 2023-08-09 | 380-58781-2 | ND |
| 2023-08-09 | 380-58355-1 | ND |
| 2023-08-09 | 380-58481-1 | ND |
| 2023-08-09 | 380-58496-1 | ND |
| 2023-08-10 | 380-58742-1 | ND |
| 2023-08-10 | 380-58749-1 | ND |
| 2023-08-10 | 380-58702-1 | ND |
| 2023-08-14 | 380-59170-1 | ND |
| 2023-08-14 | 380-59170-2 | ND |
| 2023-08-14 | 380-59113-1 | ND |
| 2023-08-14 | 380-59113-2 | ND |
| 2023-08-14 | 380-59090-1 | ND |
| 2023-08-14 | 380-59090-2 | ND |
| 2023-08-15 | 380-59356-1 | ND |
| 2023-08-15 | 380-59356-2 | ND |
| 2023-08-15 | 380-59374-1 | ND |
| 2023-08-15 | 380-59374-2 | ND |
| 2023-08-15 | 380-59367-1 | ND |
| 2023-08-15 | 380-59367-2 | ND |
| 2023-08-15 | 380-59371-1 | ND |
| 2023-08-15 | 380-59371-2 | ND |
| 2023-08-16 | 380-59628-1 | ND |
| 2023-08-17 | 380-59772-1 | ND |
| 2023-08-17 | 380-59772-2 | ND |
| 2023-08-17 | 380-59765-1 | ND |
| 2023-08-17 | 380-59765-2 | ND |
| 2023-08-17 | 380-59763-1 | ND |
| 2023-09-05 | 380-61825-3 | ND |
| 2023-09-26 | 380-64488-1 | ND |
| 2023-09-26 | 380-64427-1 | ND |
| 2023-09-27 | 380-64758-1 | ND |
| 2023-09-27 | 380-64758-2 | ND |
| 2023-10-03 | 380-65599-4 | ND |
| 2023-11-14 | 380-71156-1 | ND |
| 2023-11-14 | 380-71138-1 | ND |