Diquat
Aqua Pa Hatboro
NOTE: Aqua Pa Hatboro purchases water from Aqua Pennsylvania Main System which is required to test for diquat. Sample information shown below was taken by Aqua Pennsylvania Main System.
Diquat is a herbicide used on potato crops and aquatic weeds.
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 12 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 14 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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
NOTE: Aqua Pa Hatboro purchases water from Aqua Pennsylvania Main System which is required to test for diquat. Sample information shown below was taken by Aqua Pennsylvania Main System.
| Date | Lab ID | Result |
|---|---|---|
| 2020-04-06 | 22027299.00 | ND |
| 2020-04-07 | 22027373.00 | ND |
| 2020-04-13 | 22027613.00 | ND |
| 2020-04-15 | 22027346.00 | ND |
| 2020-04-16 | 22027646.00 | ND |
| 2020-04-23 | 22029520.00 | ND |
| 2020-07-13 | 22613589.00 | ND |
| 2020-07-14 | 22613564.00 | ND |
| 2020-07-15 | 22613835.00 | ND |
| 2020-07-20 | 22613871.00 | ND |
| 2020-07-22 | 22613943.00 | ND |
| 2020-07-22 | 22613907.00 | ND |
| 2023-01-25 | 28352803.00 | ND |
| 2023-01-25 | 28524985.00 | ND |
| 2023-01-25 | 28354027.00 | ND |
| 2023-01-27 | 28525008.00 | ND |
| 2023-01-30 | 28524962.00 | ND |
| 2023-01-30 | 28524939.00 | ND |
| 2023-01-31 | 28525053.00 | ND |
| 2023-01-31 | 28525031.00 | ND |
| 2023-01-31 | 28525077.00 | ND |
| 2023-02-03 | 28525100.00 | ND |
| 2023-02-08 | 28525123.00 | ND |
| 2023-04-03 | 28706493.00 | ND |
| 2023-04-03 | 28707922.00 | ND |
| 2023-04-04 | 28706554.00 | ND |
| 2023-04-04 | 28706524.00 | ND |
| 2023-04-12 | 28904048.00 | ND |
| 2023-04-12 | 28904076.00 | ND |
| 2023-04-12 | 28903994.00 | ND |
| 2023-04-13 | 28707692.00 | ND |
| 2023-04-13 | 28707995.00 | ND |
| 2023-04-17 | 28904020.00 | ND |
| 2023-04-17 | 28903936.00 | ND |
| 2023-04-17 | 28903964.00 | ND |
| 2023-04-18 | 28708868.00 | ND |
| 2023-04-19 | 28903908.00 | ND |
| 2023-04-27 | 28903882.00 | ND |
| 2023-05-01 | 28905161.00 | ND |
| 2023-05-02 | 28903866.00 | ND |
| 2023-06-07 | 29112030.00 | ND |
| 2023-07-10 | 29501376.00 | ND |
| 2023-07-11 | 29501374.00 | ND |
| 2023-07-11 | 29501373.00 | ND |
| 2023-07-12 | 29501375.00 | ND |
| 2023-07-12 | 29501371.00 | ND |
| 2023-07-12 | 29501370.00 | ND |
| 2023-07-12 | 29501372.00 | ND |
| 2023-07-12 | 29501369.00 | ND |
| 2023-07-12 | 29501367.00 | ND |
| 2023-07-12 | 29501368.00 | ND |
| 2023-07-25 | 29501635.00 | ND |
| 2023-07-25 | 29501607.00 | ND |
| 2023-07-31 | 29501777.00 | ND |
| 2023-07-31 | 29501691.00 | ND |
| 2023-07-31 | 29703728.00 | ND |
| 2023-07-31 | 29501663.00 | ND |
| 2023-07-31 | 29501722.00 | ND |
| 2023-08-15 | 29501604.00 | ND |
| 2023-09-13 | 29704619.00 | ND |
| 2023-10-11 | 29891161.00 | ND |
| 2023-10-19 | 30074831.00 | ND |
| 2023-10-19 | 30074775.00 | ND |
| 2023-10-19 | 30074803.00 | ND |
| 2023-10-25 | 30074931.00 | ND |
| 2023-10-26 | 30074987.00 | ND |
| 2023-10-30 | 30075015.00 | ND |
| 2023-10-30 | 30074959.00 | ND |
| 2023-11-01 | 30075043.00 | ND |
| 2023-11-01 | 30074908.00 | ND |
| 2023-11-01 | 30074880.00 | ND |
| 2023-11-07 | 30249579.00 | ND |
| 2023-11-07 | 30249551.00 | ND |