{"query":{"parameter":"nitrilotriacetic acid","place":"CA-BC","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-BC","CA"],"parameter_keys":["cas:139-13-9","cas:5064-31-3"],"names_matched":[["nitrilotriacetic acid","cas:139-13-9"],["nitrilotriacetic acid trisodium salt","cas:5064-31-3"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"273ed50e6a8dd2f1","parameter":"nitrilotriacetic acid [NTA]","value":"400","value_num":400,"unit":"µg/L","direction":"max","kind":"limit","medium":"groundwater","level":"regional","parameter_key":"cas:139-13-9","place":["CA-BC"],"conditions":["Drinking Water (DW)","note 3: Samples obtained from the point of consumption are unfiltered. Heavy metals, metalloids and inorganic ions are expressed as total substance concentrations unless otherwise indicated."],"cite":{"instrument":"ca_bc_csr_water_uses","title":"B.C. Reg. 375/96 Contaminated Sites Regulation — Schedule 3.2 generic numerical water standards, drinking water, irrigation and livestock","issuer":"Government of British Columbia (Environmental Management Act)","edition":"This consolidation is current to September 15, 2026.","source_url":"https://www.bclaws.gov.bc.ca/civix/document/id/complete/statreg/375_96_00","source_sha256":"f69b12b38ce71f5bad4842242a2390be2eeeef94ac7fcc116d57c4e34d6ffc21","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":16,"quote":null,"table":"schedule_3_2","column":"DW"}},{"id":"deaef18cf794b7e6","parameter":"Nitrilotriacetic acid (NTA)","value":"0.4","value_num":0.4,"unit":"mg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:139-13-9","place":["CA"],"conditions":["drinking water (a guideline, not a regulation: each province and territory decides whether, and how, it binds there)"],"cite":{"instrument":"ca_hc_gcdwq","title":"Health Canada — Guidelines for Canadian Drinking Water Quality, Summary Tables 1-3 (microbiological, chemical and physical, radiological)","issuer":"Health Canada, with the Federal-Provincial-Territorial Committee on Drinking Water","edition":"page modified 2026-01-21 (dcterms.modified; issued 2014-10-22): Tables 1-3 as the browser pane rendered them on 2026-10-15","source_url":"https://www.canada.ca/en/health-canada/services/environmental-workplace-health/reports-publications/water-quality/guidelines-canadian-drinking-water-quality-summary-table.html","source_sha256":"9451ad8bfa566c0625ae4fcb362272cbb0e20040c548540f362488118c300b89","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 2, Chemical and Physical Parameters (Nitrilotriacetic acid (NTA), published or reaffirmed 1990)","page":null,"quote":"I Nitrilotriacetic acid (NTA) (1990) 0.4 None"}}],"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":"CA-BC"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"nitrilotriacetic acid\", 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":"CA-BC"},"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"}]}