Find NGWMN monitoring wells in an area with the SOS GetFeatureOfInterest request
domain: cida.usgs.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Search for monitoring wells or springs in an area with GET https://cida.usgs.gov/ngwmn_cache/sos?request=GetFeatureOfInterest&service=SOS&version=2.0.0&bbox=<minLat,minLon,maxLat,maxLon>&srsName=urn:ogc:def:crs:EPSG::4269.
Alternatively, look up a single known site directly by passing its featureOfInterest ID with the same request type.
bbox values are given as lower-left and upper-right decimal-degree corners separated by commas (e.g. bbox=30,-99,31,102), matching the coordinate reference system given in srsName.
URL-encode non-alphanumeric characters (spaces, punctuation) in parameter values before sending the request.
Feed the site identifiers returned here into a subsequent GetObservation call to pull each well's water-level history.
Known gotchas
Results are limited to sites the roughly 40 contributing agencies have submitted to NGWMN - many state or local wells with public records elsewhere won't appear here if that agency isn't a network contributor.
Malformed or unencoded bbox/srsName values typically fail with an unhelpful SOS exception report rather than a clear 400 error - double-check bbox corner ordering (lower-left, upper-right) carefully.
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