{"query":{"parameter":"benzidine","place":"US-KY","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-KY","US"],"parameter_keys":["cas:92-87-5","cas:91-94-1"],"names_matched":[["benzidine","cas:92-87-5"],["dichloro 3 3 benzidine","cas:91-94-1"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water","not_sent":{"rows":9,"names":["Dichlorobenzidine, 3,3'-","3,3'-Dichlorobenzidine","3,3’-dichlorobenzidine"],"says":"9 rows share a parameter key with a longer name holding \"benzidine\" but are printed under names without these words (that key is wider than the name): not sent. Ask for one by its name or CAS number."}},"total":9,"offset":0,"returned":9,"next_offset":null,"rows":[{"id":"5d03af145ecfe3a0","parameter":"Benzidine","value":"0.00008 6","value_num":0.000086,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:92-87-5","place":["US-KY"],"conditions":["receiving_water is freshwater","surface waters designated domestic water supply, at the point of withdrawal (401 KAR 10:031 Section 5)"],"cite":{"instrument":"us_ky_wqs","title":"Kentucky 401 KAR 10:031 Surface water standards: Section 6 Table 1 (human health DWS and fish consumption; warm water aquatic habitat acute and chronic), phenol, pH, dissolved oxygen, un-ionized ammonia and total residual chlorine","issuer":"Commonwealth of Kentucky, Energy and Environment Cabinet (Division of Water)","edition":"401 KAR 10:031 as amended effective January 3, 2020 (46 Ky.R. 222, 1251, 1858), as US EPA posts it in effect for CWA purposes (Legislative Research Commission PDF version)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/kywqs-standards.pdf","source_sha256":"7655d78848eca0b80362f67fcf4b01ff17df206b77f0636528ec4220e3a30e71","fetched_at":"2026-10-10","section":"401 KAR 10:031 Section 6 Table 1","page":6,"quote":null}},{"id":"f21645a3c5fec8d8","parameter":"Benzidine","value":"0.00020","value_num":0.0002,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:92-87-5","place":["US-KY"],"conditions":["receiving_water is freshwater","all surface water at the edge of the assigned mixing zone, except points where water is withdrawn for domestic water supply (401 KAR 10:031 Section 2(3))"],"cite":{"instrument":"us_ky_wqs","title":"Kentucky 401 KAR 10:031 Surface water standards: Section 6 Table 1 (human health DWS and fish consumption; warm water aquatic habitat acute and chronic), phenol, pH, dissolved oxygen, un-ionized ammonia and total residual chlorine","issuer":"Commonwealth of Kentucky, Energy and Environment Cabinet (Division of Water)","edition":"401 KAR 10:031 as amended effective January 3, 2020 (46 Ky.R. 222, 1251, 1858), as US EPA posts it in effect for CWA purposes (Legislative Research Commission PDF version)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/kywqs-standards.pdf","source_sha256":"7655d78848eca0b80362f67fcf4b01ff17df206b77f0636528ec4220e3a30e71","fetched_at":"2026-10-10","section":"401 KAR 10:031 Section 6 Table 1","page":6,"quote":null}},{"id":"eda4dc39079ecf13","parameter":"Benzidine","value":"0.00014","value_num":0.00014,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","consumption of water + organism: a water designated a drinking-water source and for fish and shellfish (a designated use the state assigns)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table","source_sha256":"a0229d5a613672b46a000c5b9925dd3a23c3e05914bb020b7f739c69cecbb5fe","fetched_at":"2026-10-09","section":"National Recommended Water Quality Criteria — Human Health Criteria Table","page":null,"quote":"Benzidine (P) 92875 0.00014 0.011 2015"}},{"id":"a3ed9cb0344a4d07","parameter":"Benzidine","value":"0.011","value_num":0.011,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","consumption of organism only: a water designated for fish and shellfish taken from it, not a drinking-water source (fresh or salt)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table","source_sha256":"a0229d5a613672b46a000c5b9925dd3a23c3e05914bb020b7f739c69cecbb5fe","fetched_at":"2026-10-09","section":"National Recommended Water Quality Criteria — Human Health Criteria Table","page":null,"quote":"Benzidine (P) 92875 0.00014 0.011 2015"}},{"id":"4add2e1c796af5dd","parameter":"Benzidine","value":"0.00053","value_num":0.00053,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["Resident Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"e93c57fbfd29537c","parameter":"Benzidine","value":"0.01","value_num":0.01,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"c46354a3baf1bbe6","parameter":"Benzidine","value":"2.8e-07","value_num":2.8e-7,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"d7cdbe19d36ff525","parameter":"Benzidine","value":"0.00011","value_num":0.00011,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"50b3e8818e79a78b","parameter":"Benzidine","value":"0.011","value_num":0.011,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:92-87-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is marine","consumption of organism only: a water designated for fish and shellfish taken from it, not a drinking-water source (fresh or salt)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table","source_sha256":"a0229d5a613672b46a000c5b9925dd3a23c3e05914bb020b7f739c69cecbb5fe","fetched_at":"2026-10-09","section":"National Recommended Water Quality Criteria — Human Health Criteria Table","page":null,"quote":"Benzidine (P) 92875 0.00014 0.011 2015"}}],"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-KY"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"benzidine\", 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-KY"},"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"}]}