USGS-Monitored Groundwater Wells

Source period . Recomputed by ZipCheckup from the cited federal source.

Federal data is unavailable in the dataset used for this measure. We publish the gap rather than fill it with an estimate.

How we compute this

We count the groundwater monitoring wells in the U.S. Geological Survey’s national water-data network and map them to ZIP codes. The figure recomputes when USGS refreshes its site inventory.

A monitoring well is an observation point for water-level and quality measurements, not a drinking-water source or a contamination reading. Well density reflects where USGS and partners have instrumented the aquifer system.

We translate the USGS site inventory rather than estimate it. Coverage is uneven by design, concentrated where groundwater is actively studied or managed.

Source: U.S. Geological Survey (USGS) groundwater monitoring network

Every number here is recomputed from public federal data on each build by open-source code in the ZipCheckup repository; a dated CSV snapshot is published with each finding. No data does not mean safe.

How to cite this page

APA ZipCheckup. (n.d.). USGS-Monitored Groundwater Wells. https://zipcheckup.com/findings/usgs-monitored-groundwater-wells/

BibTeX

@misc{zipcheckup-findings-usgs-monitored-groundwater-wells,
  author = {{ZipCheckup}},
  title  = {{USGS-Monitored Groundwater Wells}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/findings/usgs-monitored-groundwater-wells/}
}