Chromium (total)
Fair Lawn Water Department
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.316 ppb | 17 | 12 | ND - 0.981 ppb |
2014 | 0.299 ppb | 7 | 3 | ND - 1.01 ppb |
2015 | 0.685 ppb | 7 | 5 | ND - 1.57 ppb |
2016 | N/A | 0 | 0 | N/A |
2017 | 2.34 ppb | 3 | 3 | 1.12 ppb - 3.16 ppb |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2013-01-29 | 703130-8145 | 0.257 ppb |
2013-01-29 | 703126-8145 | 0.251 ppb |
2013-01-29 | 703128-8145 | 0.270 ppb |
2013-05-28 | 721814-9081 | ND |
2013-05-28 | 721808-9081 | ND |
2013-05-28 | 721812-9081 | 0.841 ppb |
2013-07-09 | 730680-9333 | 0.498 ppb |
2013-07-30 | 734226-9452 | 0.464 ppb |
2013-07-30 | 734230-9452 | 0.410 ppb |
2013-07-30 | 734212-9397 | 0.314 ppb |
2013-08-27 | 740419-9601 | ND |
2013-08-27 | 740417-9601 | ND |
2013-08-27 | 740421-9601 | 0.345 ppb |
2013-11-26 | 760681-10414 | 0.981 ppb |
2013-11-26 | 760655-10414 | 0.468 ppb |
2013-11-26 | 760657-10414 | ND |
2013-11-26 | 760653-10414 | 0.280 ppb |
2014-02-25 | 772123-10808 | ND |
2014-02-25 | 772125-10808 | 0.347 ppb |
2014-02-25 | 772095-10808 | ND |
2014-09-23 | 29037-4 | 0.739 ppb |
2014-09-23 | 29037-5 | ND |
2014-09-23 | 29037-3 | 1.01 ppb |
2014-09-23 | 29037-2 | ND |
2015-03-24 | 31836-3 | 1.57 ppb |
2015-03-24 | 31836-2 | ND |
2015-04-28 | DWS326-1 | 0.775 ppb |
2015-06-23 | DWS916-4 | ND |
2015-06-23 | DWS916-5 | 0.512 ppb |
2015-06-23 | DWS916-3 | 1.08 ppb |
2015-06-23 | DWS916-2 | 0.858 ppb |
2017-09-26 | 7090827-02 | 2.74 ppb |
2017-09-26 | 7090827-04 | 3.16 ppb |
2017-09-26 | 7090827-03 | 1.12 ppb |