{"query":{"parameter":"dissolved oxygen","place":"US-NJ","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NJ","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":6,"offset":0,"returned":6,"next_offset":null,"rows":[{"id":"0cb30a57b0782062","parameter":"Dissolved oxygen","value":"not less than 7.0","value_num":7,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["receiving_water is freshwater","FW2-TP (trout production) (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":28,"quote":"2. Dissolved oxygen (mg/L) i. Not less than 7.0 at any time; FW2-TP"}},{"id":"675415fb4858e02b","parameter":"Dissolved oxygen","value":"not less than 5.0","value_num":5,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["receiving_water is freshwater","FW2-TM (trout maintenance) (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":28,"quote":"Not less than 5.0 at FW2-TM any time"}},{"id":"a2b4cf34f1e06fd8","parameter":"Dissolved oxygen","value":"not less than 4.0","value_num":4,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["FW2-NT (non-trout, except tidal Delaware tributaries in iv) and SE1 (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":29,"quote":"iii. 24 hour average not less than 5.0, but not less than 4.0 FW2-NT (except as in iv at any time"}},{"id":"2c3dca7688c29a5c","parameter":"Dissolved oxygen","value":"not less than 5.0","value_num":5,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["receiving_water is marine","SC (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":29,"quote":"v. Not less than 5.0 at any time; SC"}},{"id":"162770301f605b61","parameter":"Dissolved oxygen","value":"not less than 4.0","value_num":4,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["receiving_water is marine","SE2 (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":29,"quote":"vi. Not less than 4.0 at any time; SE2"}},{"id":"62b22175972c638a","parameter":"Dissolved oxygen","value":"not less than 3.0","value_num":3,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-NJ"],"conditions":["receiving_water is marine","SE3 (N.J.A.C. 7:9B-1.14(d) classification)"],"cite":{"instrument":"us_nj_wqs","title":"N.J.A.C. 7:9B-1.14 — Surface Water Quality Standards, surface water quality criteria (New Jersey)","issuer":"State of New Jersey, Department of Environmental Protection","edition":"N.J.A.C. 7:9B as the Department publishes it (courtesy copy), last amended December 18, 2023","source_url":"https://dep.nj.gov/wp-content/uploads/rules/rules/njac7_9b.pdf","source_sha256":"15d9d3d664a4afb37ce62a7b0bdc68c5f3001a6f17b0b5a0bb0991af9b78ce7d","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.J.A.C. 7:9B-1.14(d)","page":29,"quote":"vii. Not less than 3.0 at any time; and SE3"}}],"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-NJ"},"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-NJ"},"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"}]}