{"query":{"parameter":"total dissolved gas pressure","place":"US-SD","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-SD","US"],"parameter_keys":["name:total dissolved gas pressure"],"names_matched":[["total dissolved gas pressure","name:total dissolved gas pressure"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":1,"offset":0,"returned":1,"next_offset":null,"rows":[{"id":"ff8712127c314ce5","parameter":"Total dissolved gas pressure","value":"110 percent of the saturation value","value_num":110,"unit":"% saturation","statistic":"instant","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total dissolved gas pressure","place":["US-SD"],"conditions":["receiving_water is freshwater","waters protected as coldwater fisheries (discharges from impoundments or other sources)"],"cite":{"instrument":"us_sd_wqs","title":"South Dakota Surface Water Quality Standards (ARSD 74:51:01): criteria by beneficial use, Appendix B toxic pollutant criteria, radionuclide and dissolved gas limits","issuer":"State of South Dakota, Water Management Board (Department of Agriculture and Natural Resources)","edition":"ARSD chapter 74:51:01, Surface Water Quality, effective August 17, 2023 (49 SDR 96, May 14, 2023 the latest amendment printed), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/sd-wqs.pdf","source_sha256":"84e4cd1bcfc7954e7393230459ee9d98f7b9c39e0b29724e6b897bdb73f4ddcc","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"ARSD 74:51:01:13","page":11,"quote":"In waters protected as coldwater fisheries, discharges from impoundments or other sources may not cause the total dissolved gas pressure to exceed 110 percent of the saturation value."}}],"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-SD"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"total dissolved gas pressure\", 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-SD"},"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"}]}