{"query":{"parameter":"b bhc","place":"US-TN","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-TN","US"],"parameter_keys":["name:b-bhc","cas:319-85-7"],"names_matched":[["b bhc","name:b-bhc"],["b bhc beta","cas:319-85-7"],["beta hexachlorocyclohexane b bhc","cas:319-85-7"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":9,"names":["Hexachlorocyclohexane, Beta-","beta-Hexachlorocyclohexane (HCH)","beta-BHC"],"says":"9 rows share a parameter key with a longer name holding \"b bhc\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"b bhc\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"b61980ca435f1f66","parameter":"b-BHC","value":"0.091","value_num":0.091,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:b-bhc","place":["US-TN"],"conditions":["receiving_water is freshwater","waters designated for both recreation and domestic water supply (Rule 0400-40-03-.03(4)(j), note 1)"],"cite":{"instrument":"us_tn_wqs","title":"Tennessee Rule 0400-40-03-.03 Criteria for Water Uses (Chapter 0400-40-03 General Water Quality Criteria): domestic water supply, fish and aquatic life (CMC/CCC) and recreation human health criteria; TDS, dissolved oxygen and pH","issuer":"State of Tennessee, Department of Environment and Conservation (Board of Water Quality, Oil, and Gas)","edition":"Chapter 0400-40-03 as revised March 2024 (amendments filed December 18, 2023, effective March 17, 2024), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2024-07/tn_wqs_0011_062024.pdf","source_sha256":"4c9ee91b2941f44106d7cbb5009fe40f470c0c530b183b399370ce4567242717","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Rule 0400-40-03-.03(4)(j)","page":14,"quote":"b-BHC (c) 0.091 0.17"}},{"id":"cba71f4d4c5994cb","parameter":"b-BHC","value":"0.17","value_num":0.17,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:b-bhc","place":["US-TN"],"conditions":["receiving_water is freshwater","waters designated for recreation (Rule 0400-40-03-.03(4))"],"cite":{"instrument":"us_tn_wqs","title":"Tennessee Rule 0400-40-03-.03 Criteria for Water Uses (Chapter 0400-40-03 General Water Quality Criteria): domestic water supply, fish and aquatic life (CMC/CCC) and recreation human health criteria; TDS, dissolved oxygen and pH","issuer":"State of Tennessee, Department of Environment and Conservation (Board of Water Quality, Oil, and Gas)","edition":"Chapter 0400-40-03 as revised March 2024 (amendments filed December 18, 2023, effective March 17, 2024), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2024-07/tn_wqs_0011_062024.pdf","source_sha256":"4c9ee91b2941f44106d7cbb5009fe40f470c0c530b183b399370ce4567242717","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Rule 0400-40-03-.03(4)(j)","page":14,"quote":"b-BHC (c) 0.091 0.17"}}],"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-TN"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"b bhc\", 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-TN"},"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"}]}