{"subjectId":"reservoir-usbr-7194","seriesUrlPattern":"/api/v1/series/{metricId}--{subjectId}.json","seriesCount":2,"observationCount":1998,"series":[{"metricId":"reservoir-storage-volume","subjectId":"reservoir-usbr-7194","unit":"Mm³","periodKind":"month","count":1007,"from":"1943-10-01","to":"2026-08-01","sourceId":"us-bureau-reclamation"},{"metricId":"reservoir-water-level","subjectId":"reservoir-usbr-7194","unit":"m","periodKind":"month","count":991,"from":"1943-10-01","to":"2026-08-01","sourceId":"us-bureau-reclamation"}]}