{"query":{"parameter":"sodium","place":"US-ND","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-ND","US"],"parameter_keys":["cas:7440-23-5"],"names_matched":[["sodium","cas:7440-23-5"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order","not_searched":{"names":171,"parameters":105,"some":["1 dodecanesulfonic acid hydroxy sodium salt","1 propanaminium 3 amino n carboxymethyl n n dimethyl n coco acyl derivs chlorides sodium salts","1h imidazoledipropanoic acid 4 5 dihydro 1 2 hydroxyethyl 2 norcoco alkyl derivs di me esters phosphates esters sodium salts","2 1 1 dimethylethyl 5 pyrimidinol sodium salt","2 2 2 nitrilotrisethyl tris dihydrogen phosphate sodium salt","2 2 e 1 2 ethenediyl bis 5 4 4 morpholinyl 6 phenylamino 1 3 5 triazin 2 yl amino benzenesulfonic acid sodium salt 1 2","2 butenedioic acid 2z polymer with sodium 2 propene 1 sulfonate","2 methyl 2 propenoic acid polymer with 2 propenoic acid sodium salt","2 propenoic acid polymer with sodium phosphinate","2 propenoic acid telomer with sodium hydrogen sulfite","2 propenoic acid telomer with sodium sulfite 1 1","5 butyl 1h 1 2 3 benzotriazole sodium salt","5 pyrimidinol 2 1 1 dimethylethyl sodium salt","acetic acid fluoro sodium salt","acide m nitrobenzenesulfonique sel de sodium","acifluorfen sodium salt","acrylamide sodium acrylate copolymer","acrylic acid acrylamide polymer sodium salt","acrylic acid sodium hydrogen sulfite telomer sodium salt","acrylic acid sodium phosphinate polymer","alkylation products of n 3 dimethylamino propyl coco amides with chloroacetic acid sodium salts","alpha c12 15 alkyl omega sulfo poly oxy 1 2 ethanediyl sodium salt","aluminum potassium sodium silicate","aluminum sodium phosphate","amides coco n 3 dimethylamino propyl alkylation products with sodium 3 chloro 2 hydroxypropanesulfonate"],"says":"171 other names contain \"sodium\" (105 parameters, over the 40 searched at once): ask for one of them by name."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"dbf3baf68b45c7a3","parameter":"Sodium (percent of total cations)","value":"Class I: 50 percent of total cations as mEq/l","value_num":50,"unit":"% of total cations (mEq/L)","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-23-5","place":["US-ND"],"conditions":["receiving_water is freshwater","class I streams and the classified lakes and reservoirs of appendix II (stream class: appendix I)"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. Admin. Code ch. 33.1-16-02.1): Table 1 maximum limits by stream class and Table 2 water quality criteria","issuer":"State of North Dakota, Department of Environmental Quality","edition":"N.D. Admin. Code ch. 33.1-16-02.1, effective January 1, 2019, amended January 1, 2024, as US EPA posts it in effect for CWA purposes (EPA approved the 2024 amendments March 4, 2024; the chronic mercury criterion 0.012 µg/L stays in effect after EPA's July 15, 2022 disapproval of 0.88 µg/L)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/ndwqs.pdf","source_sha256":"c16e38155ad97d62102ffd2e2f78f595a0a6304d3ef6fd214f449cce4819a4b4","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"N.D. Admin. Code 33.1-16-02.1-09 Table 1","page":12,"quote":"7440-23-5 Sodium (b, c) Class I: 50 percent of total cations as milliequivalents per liter"}},{"id":"8595694a21295171","parameter":"Sodium (percent of total cations)","value":"Class IA, II, and III: 60 percent of total cations as mEq/l","value_num":60,"unit":"% of total cations (mEq/L)","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-23-5","place":["US-ND"],"conditions":["receiving_water is freshwater","class IA streams (stream class: appendix I); class II streams (stream class: appendix I); class III streams, and wetlands and class 4 lakes not listed in appendix II (stream class: appendix I; unnamed and intermittent tributaries are class III)"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. Admin. Code ch. 33.1-16-02.1): Table 1 maximum limits by stream class and Table 2 water quality criteria","issuer":"State of North Dakota, Department of Environmental Quality","edition":"N.D. Admin. Code ch. 33.1-16-02.1, effective January 1, 2019, amended January 1, 2024, as US EPA posts it in effect for CWA purposes (EPA approved the 2024 amendments March 4, 2024; the chronic mercury criterion 0.012 µg/L stays in effect after EPA's July 15, 2022 disapproval of 0.88 µg/L)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/ndwqs.pdf","source_sha256":"c16e38155ad97d62102ffd2e2f78f595a0a6304d3ef6fd214f449cce4819a4b4","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"N.D. Admin. Code 33.1-16-02.1-09 Table 1","page":12,"quote":"Class IA, II, and III: 60 percent of total cations as mEq/l"}}],"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-ND"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"sodium\", 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-ND"},"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"}]}