{"query":{"parameter":"2","place":"US-VA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-VA","US"],"parameter_keys":["name:2-("],"names_matched":[["2","name:2-("]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order","not_searched":{"names":2892,"parameters":1986,"some":["1 1 1 2 2 pentafluoroethane","1 1 1 2 2 pentafluoropropane","1 1 1 2 3 3 3 heptafluoropropane","1 1 1 2 tetrachloroethane","1 1 1 2 tetrafluoroethane","1 1 1 2 tetrafluoropropane","1 1 1 3 3 3 hexafluoro 2 propanol","1 1 1 trichloro 2 2 2 trifluoroethane","1 1 1 trichloro 2 methyl 2 propanol","1 1 2 2 tetrabromoethane","1 1 2 2 tetrachloro ethane","1 1 2 2 tetrachloroethane","1 1 2 2 tetrachloroethene pce","1 1 2 2 tetracloroetano","1 1 2 3 3 4 hexachloro 1 butene","1 1 2 3 tetracloroetano","1 1 2 4 4 pentachlorobuta 1 3 diene","1 1 2 trichloro 1 2 2 triflouroethane","1 1 2 trichloro 1 2 2 trifluoroethane","1 1 2 trichloro ethane","1 1 2 trichloroethane","1 1 2 trichloroethene tce","1 1 2 trichloroethylene","1 1 2 trichloropropane","1 1 2 tricloroetano"],"says":"2892 other names contain \"2\" (1986 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":"58e3b682878bbcfe","parameter":"2-(","value":"100","value_num":100,"direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:2-(","place":["US-VA"],"conditions":["segments designated PWS (public water supply) in 9VAC25-260-390 through 9VAC25-260-540"],"cite":{"instrument":"us_va_wqs","title":"9VAC25-260-140 — Criteria for surface water (Virginia Water Quality Standards), Table of Parameters","issuer":"Commonwealth of Virginia, State Water Control Board (Department of Environmental Quality)","edition":"Virginia Administrative Code as served by the General Assembly's LIS on 2026-10-09; last amended Virginia Register Volume 40, Issue 24, eff. June 26, 2024","source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section140/","source_sha256":"05d91f8142e13aa9978b182c77033df2412d2af9decd0586bcb8b3974972a5f7","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"9VAC25-260-140 B, Table of Parameters (human health, public water supply)","page":null,"quote":"2-(2, 4, 5-Trichlorophenoxy) propionic acid (Silvex) (µg/l) 93721 100 400"}},{"id":"ad5c2a7ab5ac4266","parameter":"2-(","value":"400","value_num":400,"direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:2-(","place":["US-VA"],"conditions":["all other surface waters, not designated PWS in 9VAC25-260-390 through 9VAC25-260-540"],"cite":{"instrument":"us_va_wqs","title":"9VAC25-260-140 — Criteria for surface water (Virginia Water Quality Standards), Table of Parameters","issuer":"Commonwealth of Virginia, State Water Control Board (Department of Environmental Quality)","edition":"Virginia Administrative Code as served by the General Assembly's LIS on 2026-10-09; last amended Virginia Register Volume 40, Issue 24, eff. June 26, 2024","source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section140/","source_sha256":"05d91f8142e13aa9978b182c77033df2412d2af9decd0586bcb8b3974972a5f7","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"9VAC25-260-140 B, Table of Parameters (human health, all other surface waters)","page":null,"quote":"2-(2, 4, 5-Trichlorophenoxy) propionic acid (Silvex) (µg/l) 93721 100 400"}}],"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-VA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"2\", 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-VA"},"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"}]}