Chromium (total)
Perrysburg City Water
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 |
---|---|---|---|---|
2014 | 0.274 ppb | 8 | 8 | 0.245 ppb - 0.305 ppb |
2015 | 0.219 ppb | 8 | 8 | 0.209 ppb - 0.233 ppb |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-07-15 | 803285-11787 | 0.250 ppb |
2014-07-15 | 803287-11787 | 0.257 ppb |
2014-07-15 | 803281-11787 | 0.245 ppb |
2014-07-15 | 803289-11787 | 0.264 ppb |
2014-10-09 | 825306-12698 | 0.269 ppb |
2014-10-09 | 825308-12697 | 0.298 ppb |
2014-10-09 | 825311-12697 | 0.305 ppb |
2014-10-09 | 825313-12697 | 0.301 ppb |
2015-01-08 | 838486-13206 | 0.233 ppb |
2015-01-08 | 838492-13206 | 0.209 ppb |
2015-01-08 | 838488-13206 | 0.222 ppb |
2015-01-08 | 838490-13206 | 0.215 ppb |
2015-04-30 | 857950-14049 | 0.220 ppb |
2015-04-30 | 857954-14049 | 0.222 ppb |
2015-04-30 | 857952-14049 | 0.217 ppb |
2015-04-30 | 857956-14049 | 0.212 ppb |