Diquat
Jurupa Community Services District
Diquat is a herbicide used on potato crops and aquatic weeds.
82
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 34 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 36 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 6 ppb
The EWG Health Guideline of 6 ppb for diquat 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 cataracts.
EPA Maximum Contaminant
Level (MCL) 20 ppb
The legal limit for diquat, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-06-25 | 3334-056-1030 | ND |
| 2015-07-01 | 3334-033-1055 | ND |
| 2015-07-01 | 3334-022-0930 | ND |
| 2015-07-01 | 3334-021-0940 | ND |
| 2015-07-01 | 3334-017-1120 | ND |
| 2015-07-07 | 3334-043-1250 | ND |
| 2015-07-07 | 3334-023-1100 | ND |
| 2015-07-07 | 3334-019-1000 | ND |
| 2015-07-08 | 3334-016-0910 | ND |
| 2015-07-08 | 3334-018-1035 | ND |
| 2015-07-08 | 3334-020-1045 | ND |
| 2015-07-08 | 3334-025-1145 | ND |
| 2015-07-09 | 3334-034-0925 | ND |
| 2015-07-09 | 3334-024-1035 | ND |
| 2015-07-15 | 3334-003-1030 | ND |
| 2015-08-25 | 3334-046-1110 | ND |
| 2015-08-25 | 3334-029-1115 | ND |
| 2015-09-30 | 3334-056-1140 | ND |
| 2015-10-01 | 3334-020-1130 | ND |
| 2015-10-06 | 3334-024-1045 | ND |
| 2015-10-06 | 3334-023-0915 | ND |
| 2015-10-14 | 3334-033-1055 | ND |
| 2015-10-14 | 3334-022-1010 | ND |
| 2015-10-14 | 3334-016-1305 | ND |
| 2015-10-15 | 3334-025-0940 | ND |
| 2015-10-20 | 3334-018-1140 | ND |
| 2015-10-20 | 3334-021-1000 | ND |
| 2015-10-21 | 3334-003-1020 | ND |
| 2015-10-21 | 3334-034-0915 | ND |
| 2015-10-22 | 3334-057-1220 | ND |
| 2015-10-27 | 3334-043-0930 | ND |
| 2015-11-03 | 3334-019-1145 | ND |
| 2015-11-10 | 3334-017-0930 | ND |
| 2015-11-12 | 3334-056-0900 | ND |
| 2016-01-13 | 3334-057-0910 | ND |
| 2016-01-13 | 3334-056-0835 | ND |
| 2016-05-10 | 3334-057-1030 | ND |
| 2016-07-13 | 3334-057-1250 | ND |
| 2016-08-10 | 3334-046-1335 | ND |
| 2016-08-11 | 3334-029-1320 | ND |
| 2017-08-01 | 3334-029-0920 | ND |
| 2017-08-02 | 3334-046-0850 | ND |
| 2017-08-17 | 3334-026-1200 | ND |
| 2017-11-09 | 3334-026-0915 | ND |
| 2018-07-11 | 3334-022-1140 | ND |
| 2018-07-11 | 3334-017-1035 | ND |
| 2018-07-12 | 3334-018-0945 | ND |
| 2018-07-12 | 3334-016-1050 | ND |
| 2018-07-17 | 3334-033-0900 | ND |
| 2018-07-17 | 3334-023-1030 | ND |
| 2018-07-19 | 3334-003-0835 | ND |
| 2018-07-19 | 3334-026-1045 | ND |
| 2018-08-01 | 3334-043-1015 | ND |
| 2018-08-01 | 3334-019-0825 | ND |
| 2018-08-01 | 3334-020-0925 | ND |
| 2018-08-01 | 3334-021-0815 | ND |
| 2018-08-02 | 3334-024-0940 | ND |
| 2018-08-02 | 3334-034-0830 | ND |
| 2018-08-13 | 3334-029-1000 | ND |
| 2018-08-22 | 3334-046-1000 | ND |
| 2018-08-28 | 3334-025-0925 | ND |
| 2018-08-29 | 3334-057-1000 | ND |
| 2018-08-30 | 3334-056-0845 | ND |
| 2018-10-24 | 3334-033-0900 | ND |
| 2018-10-31 | 3334-022-1335 | ND |
| 2018-10-31 | 3334-017-1320 | ND |
| 2018-11-01 | 3334-020-0950 | ND |
| 2018-11-01 | 3334-016-0900 | ND |
| 2018-11-01 | 3334-018-1000 | ND |
| 2018-11-08 | 3334-024-0820 | ND |
| 2018-11-08 | 3334-023-0715 | ND |
| 2018-11-13 | 3334-026-1025 | ND |
| 2018-11-13 | 3334-003-1025 | ND |
| 2018-11-27 | 3334-034-1150 | ND |
| 2018-11-27 | 3334-021-1040 | ND |
| 2018-11-28 | 3334-019-1205 | ND |
| 2018-11-28 | 3334-056-1020 | ND |
| 2018-11-28 | 3334-043-1040 | ND |
| 2018-11-28 | 3334-025-1215 | ND |
| 2018-11-28 | 3334-057-1125 | ND |
| 2019-07-10 | 3334-029-1115 | ND |
| 2019-07-11 | 3334-046-0900 | ND |