[{"id":"6822f469-a705-4cef-993c-47288b0098a5","created_at":"2025-09-04T14:44:07.053Z","updated_at":"2026-01-20T21:04:03.487Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2018-08-24T04:00:00.000Z","observed_at_local":"2018-08-24T00:00:00-04:00","notes":null,"checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["calcium","total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/167121","readings":[{"id":"521b3d07-da31-40ff-92b5-9672d461f2c0","created_at":"2025-09-04T14:44:07.113Z","updated_at":"2025-09-04T14:44:07.113Z","parameter":"calcium","unit":"mg_l","value":"13.9","equipment":"unspecified_calcium","equipment_limit":null},{"id":"e8b9fac3-d1d6-4b2d-84d2-189af97ad4cb","created_at":"2025-09-04T14:44:07.125Z","updated_at":"2025-09-04T14:44:07.125Z","parameter":"total_phosphorus","unit":"ppb","value":"0.49","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"ff192b99-a868-43b5-957f-8b05c99d1588","created_at":"2025-09-04T14:44:07.136Z","updated_at":"2025-09-04T14:44:07.136Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.01","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"a74edea7-58f1-45da-a37a-3ca7067235c8","created_at":"2025-09-04T14:44:07.307Z","updated_at":"2026-01-20T21:04:03.630Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2018-07-13T04:00:00.000Z","observed_at_local":"2018-07-13T00:00:00-04:00","notes":null,"checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["total_kjeldahl_nitrogen","total_phosphorus"],"photos":[],"permalink":"https://data.waterrangers.com/observations/167122","readings":[{"id":"acce3645-4854-42c6-bde6-03015cca5d9f","created_at":"2025-09-04T14:44:07.719Z","updated_at":"2025-09-04T14:44:07.719Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.37","equipment":"lab_unspecified","equipment_limit":null},{"id":"e9068446-f658-4ae5-81cb-17cc5fbf5248","created_at":"2025-09-04T14:44:07.559Z","updated_at":"2025-11-19T15:02:42.142Z","parameter":"total_phosphorus","unit":"ppb","value":"0","equipment":"unspecified_total_phosphorus","equipment_limit":"<="}]},{"id":"4d45dbc9-1512-4d22-80bb-39fe0ec90b9d","created_at":"2025-09-04T14:44:06.918Z","updated_at":"2026-01-20T21:04:03.280Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2018-05-24T04:00:00.000Z","observed_at_local":"2018-05-24T00:00:00-04:00","notes":null,"checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/167120","readings":[{"id":"c52e1157-491d-477e-ad71-952197b1e41f","created_at":"2025-09-04T14:44:06.974Z","updated_at":"2025-09-04T14:44:06.974Z","parameter":"total_phosphorus","unit":"ppb","value":"0.01","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"2d96fcc3-ca3f-4004-9c85-5a2d59c44ca3","created_at":"2025-09-04T14:44:06.980Z","updated_at":"2025-09-04T14:44:06.980Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"0.52","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"e1364226-87bb-4db2-962e-8e42f536a986","created_at":"2025-09-04T14:40:37.063Z","updated_at":"2026-01-20T21:02:43.744Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-10-25T22:53:00.000Z","observed_at_local":"2017-10-25T18:53:00-04:00","notes":null,"checked":"review_needed","qa_notes":"Review needed: Based on previous readings, oxygen's result of 11.78mg/L is outside the expected range of 6.65-11.54mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166635","readings":[{"id":"57050208-f5a2-4e2a-8a51-c612d8c2bc12","created_at":"2025-09-04T14:40:37.160Z","updated_at":"2025-09-04T14:40:37.160Z","parameter":"ph","unit":"std_units","value":"7.76","equipment":"unspecified_ph","equipment_limit":null},{"id":"7b3a00cb-5962-47b8-be4a-82796d2f158b","created_at":"2025-09-04T14:40:37.170Z","updated_at":"2025-09-04T14:40:37.170Z","parameter":"oxygen","unit":"mg_l","value":"11.78","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"56983404-6f9d-45b2-84f5-7a5ead1f2544","created_at":"2025-09-04T14:40:37.196Z","updated_at":"2025-09-04T14:40:37.196Z","parameter":"secchi_depth","unit":"m","value":"4","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"39cdc99e-3cff-4105-8c6a-b500bf3f714f","created_at":"2025-09-04T14:40:37.216Z","updated_at":"2025-09-04T14:40:37.216Z","parameter":"conductivity","unit":"us_cm","value":"112","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"f980dcae-dfbe-455f-b36a-073d32a8e8aa","created_at":"2025-09-04T14:40:37.289Z","updated_at":"2025-09-04T14:40:37.289Z","parameter":"water_temperature","unit":"deg_c","value":"14.27","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"2540314e-795c-43fe-a6a8-e398cd2c7f80","created_at":"2025-09-04T14:40:37.270Z","updated_at":"2025-11-26T13:32:12.445Z","parameter":"oxygen","unit":"percent","value":"114.9","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"72231ca7-020f-4597-8705-a97c0346da5f","created_at":"2025-09-04T14:39:37.135Z","updated_at":"2026-01-20T21:02:26.220Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-07-06T20:44:00.000Z","observed_at_local":"2017-07-06T16:44:00-04:00","notes":"\"Overcast","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["ph","oxygen","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166545","readings":[{"id":"47f74002-bc82-427a-aa22-21f77d279976","created_at":"2025-09-04T14:39:37.216Z","updated_at":"2025-09-04T14:39:37.216Z","parameter":"ph","unit":"std_units","value":"8.12","equipment":"unspecified_ph","equipment_limit":null},{"id":"78fc10e5-9066-4911-8872-e35e5f8334f9","created_at":"2025-09-04T14:39:37.242Z","updated_at":"2025-09-04T14:39:37.242Z","parameter":"oxygen","unit":"mg_l","value":"8.99","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"d9b5d42c-94ca-48f3-8d17-eb91d2a24526","created_at":"2025-09-04T14:39:37.336Z","updated_at":"2025-09-04T14:39:37.336Z","parameter":"secchi_depth","unit":"m","value":"4.4","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"b2e9a3c2-401f-4b8b-8fa6-2b5042084758","created_at":"2025-09-04T14:39:37.355Z","updated_at":"2025-09-04T14:39:37.355Z","parameter":"conductivity","unit":"us_cm","value":"115","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"1d3cf1a4-758e-4f2a-90d4-eff6a9d963c6","created_at":"2025-09-04T14:39:37.384Z","updated_at":"2025-09-04T14:39:37.384Z","parameter":"water_temperature","unit":"deg_c","value":"24.3","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"12dd6d0a-8698-471d-9740-dd58845c8ee6","created_at":"2025-09-04T14:39:37.371Z","updated_at":"2025-11-26T13:32:11.393Z","parameter":"oxygen","unit":"percent","value":"107.6","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"0a7e8545-b255-4eca-b9d1-edc1cfc6de6f","created_at":"2025-09-04T14:38:38.997Z","updated_at":"2026-01-20T21:01:53.492Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2017-05-11T14:36:00.000Z","observed_at_local":"2017-05-11T10:36:00-04:00","notes":null,"checked":"review_needed","qa_notes":"Review needed: Based on previous readings, oxygen's result of 11.92mg/L is outside the expected range of 6.65-11.54mg/L.","qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["oxygen","ph","secchi_depth","conductivity","water_temperature"],"photos":[],"permalink":"https://data.waterrangers.com/observations/166382","readings":[{"id":"81fe9830-2cd8-41bd-8ecd-403ceb6a21d9","created_at":"2025-09-04T14:38:39.091Z","updated_at":"2025-09-04T14:38:39.091Z","parameter":"ph","unit":"std_units","value":"7.83","equipment":"unspecified_ph","equipment_limit":null},{"id":"b795dc6e-f8bd-4533-b265-c44bde28bd29","created_at":"2025-09-04T14:38:39.109Z","updated_at":"2025-09-04T14:38:39.109Z","parameter":"oxygen","unit":"mg_l","value":"11.92","equipment":"unspecified_oxygen_mg_l","equipment_limit":null},{"id":"7dd65659-84a8-4bb4-85e9-8efb1af031f5","created_at":"2025-09-04T14:38:39.128Z","updated_at":"2025-09-04T14:38:39.128Z","parameter":"secchi_depth","unit":"m","value":"4.5","equipment":"secchi_disk_20cm","equipment_limit":null},{"id":"b77ceda2-83fb-417d-b640-858eeaebbaa4","created_at":"2025-09-04T14:38:39.219Z","updated_at":"2025-09-04T14:38:39.219Z","parameter":"conductivity","unit":"us_cm","value":"110","equipment":"unspecified_conductivity","equipment_limit":null},{"id":"f716b4ff-2010-4bed-9bff-c73a6485d6cd","created_at":"2025-09-04T14:38:39.260Z","updated_at":"2025-09-04T14:38:39.260Z","parameter":"water_temperature","unit":"deg_c","value":"10.78","equipment":"unspecified_water_temperature","equipment_limit":null},{"id":"a1da9437-4a04-4b80-b579-cd50e3becde6","created_at":"2025-09-04T14:38:39.248Z","updated_at":"2025-11-26T13:32:09.709Z","parameter":"oxygen","unit":"percent","value":"108","equipment":"unspecified_oxygen_percent","equipment_limit":null}]},{"id":"f26b2196-1392-45cd-8af4-e11eee4871f8","created_at":"2025-09-04T14:34:55.716Z","updated_at":"2026-01-20T20:58:23.032Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-10-20T16:00:00.000Z","observed_at_local":"2016-10-20T12:00:00-04:00","notes":"Sample: B16-33861-3","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/165265","readings":[{"id":"1b4f11c1-0c45-420e-bfa3-1eaa9b0d0ed6","created_at":"2025-09-04T14:34:55.782Z","updated_at":"2025-09-04T14:34:55.782Z","parameter":"total_phosphorus","unit":"ppb","value":"20","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"cec4c84e-421c-4b0a-86ff-fe070d138d5f","created_at":"2025-09-04T14:34:55.798Z","updated_at":"2025-09-04T14:34:55.798Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"530","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"002c54bd-88f8-42ef-bf7e-c8f46926e419","created_at":"2025-09-04T14:34:55.619Z","updated_at":"2026-01-20T20:58:22.875Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-07-28T16:00:00.000Z","observed_at_local":"2016-07-28T12:00:00-04:00","notes":"Calcium: 16.2\r\nSample: B16-22308-8","checked":"qc_complete","qa_notes":null,"qa_admin_notes":"","qa_admin_notes_author_id":null,"qa_admin_notes_updated_at":null,"tested_parameters":["total_phosphorus","total_kjeldahl_nitrogen"],"photos":[],"permalink":"https://data.waterrangers.com/observations/165264","readings":[{"id":"3d5e5b52-e923-4d9c-9451-d37a4ff569ae","created_at":"2025-09-04T14:34:55.680Z","updated_at":"2025-09-04T14:34:55.680Z","parameter":"total_phosphorus","unit":"ppb","value":"9","equipment":"unspecified_total_phosphorus","equipment_limit":null},{"id":"e0c01efe-c727-49a7-9caa-fdae4ef15d9f","created_at":"2025-09-04T14:34:55.690Z","updated_at":"2025-09-04T14:34:55.690Z","parameter":"total_kjeldahl_nitrogen","unit":"mg_l","value":"370","equipment":"lab_unspecified","equipment_limit":null}]},{"id":"1a8b3cb0-44e3-4c02-9d17-f015f307a82a","created_at":"2025-09-04T14:34:55.455Z","updated_at":"2026-01-20T20:58:22.718Z","owner_id":"c4678375-5225-458c-b42f-15157046d480","location_id":"541de925-48dc-4008-880c-d53dab7e435b","dataset_id":"f13843e3-100c-4126-a33c-8edb632a981b","form_id":"93e5d9c7-5c11-4eda-ab0f-2e1bcd433c0c","observed_at":"2016-06-29T16:00:00.000Z","observed_at_local":"2016-06-29T12:00:00-04:00","notes":"Sample: 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