{"query":{"parameter":"dissolved oxygen","place":"US-MI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MI","US"],"parameter_keys":["cas:7782-44-7","name:dissolved oxygen","name:diel dissolved oxygen flux","name:minimum dissolved oxygen","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","name:oxygen - dissolved","name:oxygen, dissolved"],"names_matched":[["dissolved oxygen","cas:7782-44-7"],["dissolved oxygen","name:dissolved oxygen"],["diel dissolved oxygen flux","name:diel dissolved oxygen flux"],["minimum dissolved oxygen","name:minimum dissolved oxygen"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc h","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["oxygen dissolved","name:oxygen - dissolved","oxygen dissolved"],["oxygen dissolved","name:oxygen, dissolved","oxygen dissolved"],["oxygen dissolved intergravel","name:oxygen, dissolved","oxygen dissolved"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":3,"offset":0,"returned":3,"next_offset":null,"rows":[{"id":"2b5b717abb49cc7d","parameter":"Dissolved oxygen","value":"a minimum of 7 milligrams per liter","value_num":7,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-MI"],"conditions":["receiving_water is freshwater","all Great Lakes and connecting waterways"],"cite":{"instrument":"us_mi_wqs","title":"Michigan Part 4 Water Quality Standards (R 323.1041-1117): Rule 57 aquatic life (Tables 1-2), wildlife (Table 4) and human health (Tables 7-8) values; Rule 51 dissolved solids and chlorides, Rule 53 pH, Rule 64 dissolved oxygen","issuer":"State of Michigan, Department of Environmental Quality (now EGLE), Water Bureau","edition":"Part 4 Water Quality Standards, R 323.1041-1117, filed and effective January 13, 2006, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mi-part4-wqs.pdf","source_sha256":"e0d887941416c17cde61963ce255daf22285ab07fb30051ea72d077601179bbe","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"R 323.1064(1)","page":47,"quote":"(1) A minimum of 7 milligrams per liter of dissolved oxygen in all Great Lakes and connecting waterways shall be maintained, and, except for inland lakes as prescribed in R 323.1065, a minimum of 7 milligrams per liter of dissolved oxygen shall be maintained at all times in all inland waters designated by these rules to be protected for coldwater fish. In all other waters, except for inland lakes as prescribed by R 323.1065, a minimum of 5 milligrams per liter of dissolved oxygen shall be maintained."}},{"id":"7a99b12944a7d43f","parameter":"Dissolved oxygen","value":"a minimum of 7 milligrams per liter","value_num":7,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-MI"],"conditions":["receiving_water is freshwater","inland waters designated for coldwater fish, except inland lakes (R 323.1065)"],"cite":{"instrument":"us_mi_wqs","title":"Michigan Part 4 Water Quality Standards (R 323.1041-1117): Rule 57 aquatic life (Tables 1-2), wildlife (Table 4) and human health (Tables 7-8) values; Rule 51 dissolved solids and chlorides, Rule 53 pH, Rule 64 dissolved oxygen","issuer":"State of Michigan, Department of Environmental Quality (now EGLE), Water Bureau","edition":"Part 4 Water Quality Standards, R 323.1041-1117, filed and effective January 13, 2006, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mi-part4-wqs.pdf","source_sha256":"e0d887941416c17cde61963ce255daf22285ab07fb30051ea72d077601179bbe","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"R 323.1064(1)","page":47,"quote":"(1) A minimum of 7 milligrams per liter of dissolved oxygen in all Great Lakes and connecting waterways shall be maintained, and, except for inland lakes as prescribed in R 323.1065, a minimum of 7 milligrams per liter of dissolved oxygen shall be maintained at all times in all inland waters designated by these rules to be protected for coldwater fish. In all other waters, except for inland lakes as prescribed by R 323.1065, a minimum of 5 milligrams per liter of dissolved oxygen shall be maintained."}},{"id":"3c45aaecbc06e348","parameter":"Dissolved oxygen","value":"a minimum of 5 milligrams per liter","value_num":5,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-MI"],"conditions":["receiving_water is freshwater","all other waters, except inland lakes (R 323.1065)"],"cite":{"instrument":"us_mi_wqs","title":"Michigan Part 4 Water Quality Standards (R 323.1041-1117): Rule 57 aquatic life (Tables 1-2), wildlife (Table 4) and human health (Tables 7-8) values; Rule 51 dissolved solids and chlorides, Rule 53 pH, Rule 64 dissolved oxygen","issuer":"State of Michigan, Department of Environmental Quality (now EGLE), Water Bureau","edition":"Part 4 Water Quality Standards, R 323.1041-1117, filed and effective January 13, 2006, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mi-part4-wqs.pdf","source_sha256":"e0d887941416c17cde61963ce255daf22285ab07fb30051ea72d077601179bbe","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"R 323.1064(1)","page":47,"quote":"(1) A minimum of 7 milligrams per liter of dissolved oxygen in all Great Lakes and connecting waterways shall be maintained, and, except for inland lakes as prescribed in R 323.1065, a minimum of 7 milligrams per liter of dissolved oxygen shall be maintained at all times in all inland waters designated by these rules to be protected for coldwater fish. In all other waters, except for inland lakes as prescribed by R 323.1065, a minimum of 5 milligrams per liter of dissolved oxygen shall be maintained."}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-MI"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"dissolved oxygen\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-MI"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}