{"query":{"parameter":"alpha hexachlorocyclohexane","place":"US-OH","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-OH","US"],"parameter_keys":["cas:319-84-6","name:alpha hexachlorocyclohexane"],"names_matched":[["alpha hexachlorocyclohexane","cas:319-84-6"],["alpha hexachlorocyclohexane","name:alpha hexachlorocyclohexane"]],"match":"exact","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"},"total":11,"offset":0,"returned":11,"next_offset":null,"rows":[{"id":"572d217c1e1d9d6f","parameter":"alpha-Hexachlorocyclohexane","value":"0.0036","value_num":0.0036,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:319-84-6","place":["US-OH"],"conditions":["receiving_water is freshwater","water bodies within five hundred yards of drinking water intakes (OAC 3745-1-33(A)(1))","water bodies in the Ohio river drainage basin"],"cite":{"instrument":"us_oh_wqs","title":"Ohio Administrative Code Chapter 3745-1 Water Quality Standards: statewide aquatic life (Table 35-1, hardness and pH equations 35-9/35-10), wildlife (35-12), public water supply (33-1), agricultural supply (33-3), fish consumption (34-1), aesthetic (37-1) and Ohio river (32-1/32-2) criteria","issuer":"State of Ohio, Environmental Protection Agency","edition":"OAC 3745-1-01 to -44 and -50 to -54, effective March 16, 2026, as US EPA posts it in effect for CWA purposes (cover letter March 25, 2026: EPA disapproved, April 27, 2021, 44 lake Erie public water supply criteria of Table 33-1)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/oh_34751_1_to_40.pdf","source_sha256":"129b8170e3fe705fd7b0be22d6ca7eb6bf37bfc003df0348bb42b8e67c60f9d0","fetched_at":"2026-10-14","section":"OAC 3745-1-33 Table 33-1","page":459,"quote":"alpha-Hexachlorocyclohexane5 T µg/l 0.0036"}},{"id":"f376a2d0c5802f3a","parameter":"alpha-Hexachlorocyclohexane","value":"0.0039","value_num":0.0039,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:319-84-6","place":["US-OH"],"conditions":["receiving_water is freshwater","water bodies in the Ohio river drainage basin"],"cite":{"instrument":"us_oh_wqs","title":"Ohio Administrative Code Chapter 3745-1 Water Quality Standards: statewide aquatic life (Table 35-1, hardness and pH equations 35-9/35-10), wildlife (35-12), public water supply (33-1), agricultural supply (33-3), fish consumption (34-1), aesthetic (37-1) and Ohio river (32-1/32-2) criteria","issuer":"State of Ohio, Environmental Protection Agency","edition":"OAC 3745-1-01 to -44 and -50 to -54, effective March 16, 2026, as US EPA posts it in effect for CWA purposes (cover letter March 25, 2026: EPA disapproved, April 27, 2021, 44 lake 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supply (33-1), agricultural supply (33-3), fish consumption (34-1), aesthetic (37-1) and Ohio river (32-1/32-2) criteria","issuer":"State of Ohio, Environmental Protection Agency","edition":"OAC 3745-1-01 to -44 and -50 to -54, effective March 16, 2026, as US EPA posts it in effect for CWA purposes (cover letter March 25, 2026: EPA disapproved, April 27, 2021, 44 lake Erie public water supply criteria of Table 33-1)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/oh_34751_1_to_40.pdf","source_sha256":"129b8170e3fe705fd7b0be22d6ca7eb6bf37bfc003df0348bb42b8e67c60f9d0","fetched_at":"2026-10-14","section":"OAC 3745-1-32 Table 32-2","page":452,"quote":"alpha-Hexachlorocyclohexane5 T µg/l 0.0036 0.0036"}},{"id":"2f63e617e9153930","parameter":"alpha-Hexachlorocyclohexane","value":"0.0036","value_num":0.0036,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:319-84-6","place":["US-OH"],"conditions":["receiving_water is freshwater","the Ohio river mainstem (OAC 3745-1-32)","the Ohio river at all other locations (Table 32-2 note 3)"],"cite":{"instrument":"us_oh_wqs","title":"Ohio Administrative Code Chapter 3745-1 Water Quality Standards: statewide aquatic life (Table 35-1, hardness and pH equations 35-9/35-10), wildlife (35-12), public water supply (33-1), agricultural supply (33-3), fish consumption (34-1), aesthetic (37-1) and Ohio river (32-1/32-2) criteria","issuer":"State of Ohio, Environmental Protection Agency","edition":"OAC 3745-1-01 to -44 and -50 to -54, effective March 16, 2026, as US EPA posts it in effect for CWA purposes (cover letter March 25, 2026: EPA disapproved, April 27, 2021, 44 lake Erie public water supply criteria of Table 33-1)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/oh_34751_1_to_40.pdf","source_sha256":"129b8170e3fe705fd7b0be22d6ca7eb6bf37bfc003df0348bb42b8e67c60f9d0","fetched_at":"2026-10-14","section":"OAC 3745-1-32 Table 32-2","page":452,"quote":"alpha-Hexachlorocyclohexane5 T µg/l 0.0036 0.0036"}},{"id":"58ae87463fe40052","parameter":"alpha-Hexachlorocyclohexane (HCH)","value":"0.00036","value_num":0.00036,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:319-84-6","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":"alpha-Hexachlorocyclohexane (HCH) (P) 319846 0.00036 0.00039 2015"}},{"id":"778f29eef34af5c8","parameter":"alpha-Hexachlorocyclohexane 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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":"ae704d97d2366684","parameter":"Hexachlorocyclohexane, Alpha-","value":"0.36","value_num":0.36,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:319-84-6","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":"3bf565eb6edfc1dd","parameter":"Hexachlorocyclohexane, Alpha-","value":"4.2e-05","value_num":0.000042,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:319-84-6","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 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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-OH"},"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"}]}