HIGH KNOB
VA · PWS ID VA2187522 · Community water system
49
contaminants tested
16
detected
1,500
people served
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 3610 UG/L | 104/104 | SYR4 | 2012–2019 |
| TTHM | 22 UG/L | 31/39 | SYR4 | 2012–2019 |
| Chloroform | 17 UG/L | 30/51 | SYR4 | 2012–2019 |
| COPPER, FREE | 712 UG/L | 25/33 | SYR4 | 2012–2018 |
| Bromodichloromethane | 3.3 UG/L | 21/51 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.3 UG/L | 17/51 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0180 mg/L | 17/17 | LCR | 2023 |
| Barium | 24 UG/L | 10/13 | SYR4 | 2012–2018 |
| Combined Radium (-226 and -228) | 0.6000 PCI/L | 10/10 | SYR4 | 2015–2018 |
| Lead | 4.38 UG/L | 9/33 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 8.4 UG/L | 7/39 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 13 UG/L | 7/39 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.8 PCI/L | 3/10 | SYR4 | 2015–2018 |
| Trichloroacetic Acid | 3.2 UG/L | 2/39 | SYR4 | 2012–2019 |
| Bromoform | 1.4 UG/L | 1/51 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 1.6 UG/L | 1/39 | SYR4 | 2012–2019 |
33 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbon tetrachlorideChromiumDICHLOROMETHANEDibromoacetic acidEthylbenzeneFluorideMercuryMonobromoacetic acidSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene