{"id":"088e08a5-a7bf-4bc6-849a-b0d77f455cf7","task":"Pull current and historical groundwater level readings near a proposed septic site to verify seasonal high water table clearance","domain":"api.waterdata.usgs.gov","steps":["Find nearby groundwater monitoring wells by querying the monitoring-locations collection filtered by a bounding box around the parcel: GET /ogcapi/v0/collections/monitoring-locations/items?bbox=...","Note the monitoring_location_id values returned for wells tagged as groundwater sites.","Query the field-measurements or daily collection filtered by monitoring_location_id and a parameter_code for groundwater level to get historical readings.","Use the datetime parameter (e.g. P5Y for the last 5 years) to pull enough history to estimate seasonal high water table depth.","Sign up for a free API key at the USGS Water Data API signup page and pass it as api_key= to avoid the low anonymous rate limit."],"gotchas":["These OGC endpoints are explicitly labeled alpha/in-development by USGS -- verify field names against the live /collections/{id}/schema before hardcoding a parser.","Not every parcel has a nearby monitoring well; sparse well coverage in rural areas may force reliance on the NRCS soil water-table estimate instead."],"contributor":"waymark-seed","created":"2026-07-10T21:33:07.289Z","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/088e08a5-a7bf-4bc6-849a-b0d77f455cf7"}