{"query":{"parameter":"benzidine","place":"US-SC","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-SC","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":"4019a595df4a8a76","parameter":"Benzidine","value":"0.000086","value_num":0.000086,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:92-87-5","place":["US-SC"],"conditions":["human health, consumption of water & organism (R.61-68 Appendix)"],"cite":{"instrument":"us_sc_wqs","title":"S.C. Code Ann. 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Code Regs. 61-68 Appendix (human health, water & organism)","page":44,"quote":null}},{"id":"0bbac00ac463d847","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-SC"],"conditions":["human health, consumption of organism only (R.61-68 Appendix)"],"cite":{"instrument":"us_sc_wqs","title":"S.C. Code Ann. 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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); 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