The water in the pond is tested over the course of the swimming season, for both E.Coli and phosphate. The water quality has been good and the sample is always “found to be within acceptable levels for swimming & fishing.”
Max EPA recommended level for E.Coli is 235 (drinking water should be under 1), no recommendation for phosphate.
| Date (2021) | E.Coli | Phosphate |
| June 1, 2021 | 5 CFU/100 ml | 0.33 mg/L |
| July 21, 2021 | 10 CFU/100 ml | 0.01 mg/L |
| Date (2020) | E.Coli | Phosphate |
| June 2, 2020 | 4 CFU/100 ml | 0.09 mg/L |
| July 21, 2020 | 60 CFU/100 ml | 0.07 mg/L |
| Date (2019) | E.Coli | Phosphate |
| July 1, 2019 | 40 CFU/100 ml | 0.03 mg/L |
| August 5, 2019 | 10 CFU/100 ml | 0.05 mg/L |
| Date (2018) | E.Coli | Phosphate |
| June 7, 2018 | 10 CFU/100 ml | 0.09 mg/L |
| July 6, 2018 | 5 CFU/100 ml | 0.09 mg/L |
| August 6, 2018 | 20 CFU/100 ml | 0.09 mg/L |
| Date (2017) | E.Coli | Phosphate |
| June 9, 2017 | 5 CFU/100 ml | 0.08 mg/L |
| July 7, 2017 | 20 CFU/100 ml | 0.07 mg/L |
| August 11, 2017 | 30 CFU/100 ml | 0.07 mg/L |
| Date (2016) | E.Coli | Phosphate |
| May 25, 2016 | 4 CFU/100 ml | 0.07 mg/L |
| June 29, 2016 | 4 CFU/100 ml | 0.05 mg/L |
| July 29, 2016 | 6 CFU/100 ml | 0.08 mg/L |
| Date (2015) | E.Coli | Phosphate |
| late May, 2015 | 10 CFU/100 ml | 0.05 mg/L |
| June 30, 2015 | 10 CFU/100 ml | 0.02 mg/L |
| Aug. 7, 2015 | Acceptable | Acceptable |
Echo Hill North 