Johnson County, Iowa Water Quality
Aggregated water quality data for 51 water systems in Johnson County.
Water Systems
51
Water Systems
153K
People Served
Surface water, Ground water
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 390.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 3900% | Above guideline |
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