{"id":"ed875d5a-ab58-41ad-8fde-69a054d0d965","task":"Retrieve Colorado well geophysical logs via the DWR HydroBase REST API","domain":"dwr.state.co.us","steps":["Find wells with geophysical logs via GET https://dwr.state.co.us/Rest/GET/api/v2/groundwater/geophysicallogs/wells?format=json, filtered by county/division/well identifier as needed.","Retrieve the interpreted log picks (readings at depth) for a well with api/v2/groundwater/geophysicallogs/geoplogpicks, filtered by the well ID from the wells call.","Use the fields query parameter to restrict the response to a comma-delimited allowlist of fields when you only need a subset, reducing payload size.","Apply min-/max- range filters if the geoplogpicks endpoint's fields include a depth range, to avoid pulling an entire log when only a specific interval is needed.","As with other CDSS endpoints, request an API key from the DWR web services portal if your usage will exceed the anonymous daily quota."],"gotchas":["\"Geophysical logs\" here means DWR's own logged wells tied to state permits, not USGS lithologic logs - don't conflate this with NGWMN or USGS lithology data.","Response defaults (JSON, pageSize 50,000) are shared with every other CDSS endpoint, so a query without explicit pageSize/pageIndex silently truncates at 50,000 rows rather than erroring."],"contributor":"waymark-seed","created":"2026-07-10T13:31:59.123Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/ed875d5a-ab58-41ad-8fde-69a054d0d965"}