Chromium (total)
City of Hastings
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.
42
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 |
|---|---|---|---|---|
| 2013 | 0.760 ppb | 38 | 38 | 0.215 ppb - 1.43 ppb |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 0.517 ppb | 4 | 2 | ND - 1.51 ppb |
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 |
|---|---|---|
| 2013-04-16 | 714834-9089 | 0.946 ppb |
| 2013-04-16 | 714832-9089 | 0.711 ppb |
| 2013-04-16 | 714828-9089 | 0.796 ppb |
| 2013-04-17 | 715098-9089 | 0.593 ppb |
| 2013-04-17 | 715137-9090 | 0.873 ppb |
| 2013-04-22 | 715669-9090 | 0.674 ppb |
| 2013-04-22 | 715651-9090 | 1.10 ppb |
| 2013-05-21 | 720758-9080 | 0.384 ppb |
| 2013-05-21 | 720744-9000 | 0.320 ppb |
| 2013-05-22 | 721086-9080 | 0.431 ppb |
| 2013-05-22 | 721113-9080 | 0.415 ppb |
| 2013-05-22 | 721111-9080 | 0.380 ppb |
| 2013-05-22 | 721108-9080 | 1.10 ppb |
| 2013-06-04 | 723380-9105 | 0.759 ppb |
| 2013-06-04 | 723382-9105 | 0.469 ppb |
| 2013-06-05 | 723893-9115 | 0.286 ppb |
| 2013-06-18 | 727000-9214 | 1.05 ppb |
| 2013-08-20 | 739407-9591 | 0.822 ppb |
| 2013-09-04 | 742278-9670 | 0.476 ppb |
| 2013-10-16 | 753505-10147 | 1.07 ppb |
| 2013-10-16 | 753507-10147 | 1.01 ppb |
| 2013-10-22 | 754256-10168 | 0.400 ppb |
| 2013-10-22 | 754250-10168 | 0.215 ppb |
| 2013-10-23 | 754872-10200 | 1.22 ppb |
| 2013-10-23 | 754851-10200 | 0.876 ppb |
| 2013-10-23 | 754870-10200 | 0.660 ppb |
| 2013-10-23 | 754860-10200 | 0.951 ppb |
| 2013-11-05 | 757042-10255 | 1.43 ppb |
| 2013-11-05 | 757061-10255 | 0.369 ppb |
| 2013-11-05 | 757050-10255 | 0.891 ppb |
| 2013-11-05 | 757067-10255 | 1.02 ppb |
| 2013-11-06 | 757375-10294 | 1.04 ppb |
| 2013-11-06 | 757381-10294 | 1.08 ppb |
| 2013-11-06 | 757369-10294 | 1.10 ppb |
| 2013-11-19 | 759599-10381 | 0.840 ppb |
| 2013-11-19 | 759469-10377 | 1.07 ppb |
| 2013-11-19 | 759573-10381 | 0.719 ppb |
| 2013-11-19 | 759567-10377 | 0.334 ppb |
| 2019-07-15 | 622018 | ND |
| 2019-07-15 | 622017 | ND |
| 2019-07-15 | 622016 | 0.558 ppb |
| 2019-07-15 | 622015 | 1.51 ppb |