Chromium (total)
White Plains City
Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.
36
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 | 0.0900 ppb | 20 | 7 | ND - 0.330 ppb |
| 2015 | 0.0263 ppb | 8 | 1 | ND - 0.210 ppb |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-05-13 | 201405140448AM | ND |
| 2014-05-13 | 201405140523AM | ND |
| 2014-05-13 | 201405140516AM | ND |
| 2014-05-13 | 201405140702AM | ND |
| 2014-05-13 | 201405140541AM | ND |
| 2014-05-13 | 201405140503AM | ND |
| 2014-06-25 | 14-6176 INP | ND |
| 2014-06-25 | 14-6185 INP | ND |
| 2014-08-06 | 201408070515AM | ND |
| 2014-08-06 | 201408070509AM | ND |
| 2014-08-06 | 201408070397AM | ND |
| 2014-08-06 | 201408070519AM | ND |
| 2014-08-06 | 201408070365AM | ND |
| 2014-08-19 | 201408210388AM | 0.230 ppb |
| 2014-11-05 | 201411060325AM | 0.240 ppb |
| 2014-11-05 | 201411060477AM | 0.300 ppb |
| 2014-11-05 | 201411060232AM | 0.230 ppb |
| 2014-11-05 | 201411060404AM | 0.200 ppb |
| 2014-11-05 | 201411060475AM | 0.330 ppb |
| 2014-11-05 | 201411060473AM | 0.270 ppb |
| 2015-02-04 | 201502050532AM | ND |
| 2015-02-04 | 201502060222AM | 0.210 ppb |
| 2015-02-04 | 201502050722AM | ND |
| 2015-02-04 | 201502060241AM | ND |
| 2015-02-04 | 201502060224AM | ND |
| 2015-02-04 | 201502050498AM | ND |
| 2015-06-23 | 15-6103 INP | ND |
| 2015-06-23 | 15-6112 INP | ND |
| 2016-06-22 | 16-8299 INP | ND |
| 2016-06-22 | 16-8300 INP | ND |
| 2017-06-20 | 17-6190-INP | ND |
| 2017-06-20 | 17-6192-INP | ND |
| 2018-06-20 | 18-6370 INP | ND |
| 2018-06-20 | 18-6369 INP | ND |
| 2019-06-18 | 19-6351 INP | ND |
| 2019-06-18 | 19-6352 INP | ND |