# Department of Interior aquifer-types API

**Canonical:** https://apis.io/apis/doi/doi-aquifer-types-api/  
**Provider:** Department of Interior — https://apis.io/providers/doi/  
**Base URL:** https://developer.nps.gov/api/v1  
**Documentation:** https://www.nps.gov/subjects/developer/index.htm

Department of Interior aquifer-types API is one of 41 APIs that [Department of Interior](https://apis.io/providers/doi/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include aquifer-types. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Groundwater occurs in aquifers under two different conditions. Where water only partly fills an aquifer, the upper surface is free to rise and decline. These aquifers are referred to as unconfined (or water-table) aquifers. Where water completely fills an aquifer that is overlain by a confining bed, the aquifer is referred to as a confined (or artesian) aquifer. When a confined aquifer is penetrated by a well, the water level in the well will rise above the top of the aquifer (but not necessarily above land surface).

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/doi/refs/heads/main/openapi/doi-aquifer-types-api-openapi.yml
- **Documentation** — https://api.waterdata.usgs.gov/docs/
- **Migration** — https://api.waterdata.usgs.gov/docs/ogcapi/migration/

## Other Department of Interior APIs (12)

- [NPS Data API](https://apis.io/apis/doi/nps-data-api/)
- [USGS Earthquake Hazards Web Services](https://apis.io/apis/doi/usgs-earthquake-hazards-web-services/)
- [USGS Mineral Resources Data API](https://apis.io/apis/doi/usgs-mineral-resources-data-api/)
- [BLM GIS REST Services](https://apis.io/apis/doi/blm-gis-rest-services/)
- [USGS ScienceBase API](https://apis.io/apis/doi/usgs-sciencebase-api/)
- [Department of Interior agency-codes API](https://apis.io/apis/doi/doi-agency-codes-api/)
- [Department of Interior altitude-datums API](https://apis.io/apis/doi/doi-altitude-datums-api/)
- [Department of Interior aquifer-codes API](https://apis.io/apis/doi/doi-aquifer-codes-api/)
- [Department of Interior channel-measurements API](https://apis.io/apis/doi/doi-channel-measurements-api/)
- [Department of Interior citations API](https://apis.io/apis/doi/doi-citations-api/)
- [Department of Interior combined-metadata API](https://apis.io/apis/doi/doi-combined-metadata-api/)
- [Department of Interior continuous API](https://apis.io/apis/doi/doi-continuous-api/)

## Tags

aquifer-types

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/doi/doi-aquifer-types-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/doi/.