{"query":{"parameter":"cis 1 2 dichloroethylene","place":"US-IA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-IA","US"],"parameter_keys":["cas:156-59-2","name:cis 1,2-dichloroethylene","cas:540-59-0","cas:156-60-5","name:cis−1,2−dichloroethene","name:trans−1,2−dichloroethene","name:dichloroethylene, 1,2-cis-"],"names_matched":[["cis 1 2 dichloroethylene","cas:156-59-2"],["cis 1 2 dichloroethylene","name:cis 1,2-dichloroethylene"],["1 2 dichloroethene","cas:540-59-0","1 2 dichloroethene"],["1 2 dichloroethene cis","cas:540-59-0","1 2 dichloroethene"],["1 2 dichloroethene cis et trans","cas:540-59-0","1 2 dichloroethene"],["1 2 dichloroethene totaux","cas:540-59-0","1 2 dichloroethene"],["1 2 dichloroethene trans","cas:540-59-0","1 2 dichloroethene"],["1 2 dichloroethene trans t 1 2 dichloroethylene","cas:156-60-5","1 2 dichloroethene"],["1 2 trans dichloroethene","cas:156-60-5","1 2 dichloroethene"],["cis 1 2 dichloroethene","name:cis−1,2−dichloroethene","1 2 dichloroethene"],["trans 1 2 dichloroethene","cas:156-60-5","1 2 dichloroethene"],["trans 1 2 dichloroethene","name:trans−1,2−dichloroethene","1 2 dichloroethene"],["trans 1 2 dichloroethylene trans 1 2 dichloroethene","cas:156-60-5","1 2 dichloroethene"],["dichloroethylene 1 2 cis","name:dichloroethylene, 1,2-cis-","dichloroethylene 1 2 cis"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":22,"names":["1,2-trans-Dichloroethylene","Dichloroethylene, trans-1,2-","trans-1,2-Dichloroethylene","Trans-1,2-Dichloroethylene"],"says":"22 rows share a parameter key with a longer name holding \"cis 1 2 dichloroethylene\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"cis 1 2 dichloroethylene\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":8,"offset":0,"returned":8,"next_offset":null,"rows":[{"id":"91b25e0c7406a445","parameter":"cis-1,2-Dichloroethylene","value":"70","value_num":70,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:156-59-2","place":["US-IA"],"conditions":["receiving_water is freshwater","class C waters: drinking water supply"],"cite":{"instrument":"us_ia_wqs","title":"Iowa Administrative Code 567—Chapter 61 Water Quality Standards: Table 1 criteria by use designation, Table 2 dissolved oxygen, pH, Table 4 sulfate, and the livestock-watering ion guidelines kept in effect","issuer":"State of Iowa, Environmental Protection Commission (Department of Natural Resources)","edition":"567 IAC chapter 61, effective February 2, 2022 (IAC 2/9/22), as US EPA posts it in effect for CWA purposes (cover February 13, 2023: 61.3(2)\"g\" kept in effect, EPA having reserved action on its removal; part of 61.3(3)(a)(1) disapproved)","source_url":"https://www.epa.gov/system/files/documents/2024-03/ia-chapter61-2023.pdf","source_sha256":"6d136ce607bf1fc6c839c1cea688892f0a113214bf6026fddab9f18e72d4c0d9","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"567 IAC 61.3(3) Table 1","page":16,"quote":"cis-1,2-Dichloroethylene MCL — — — — — — 70 —"}},{"id":"5fdbcdd837802fef","parameter":"cis-1,2-Dichloroethylene","value":"0.07","value_num":0.07,"unit":"mg/l","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:156-59-2","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level goals are nonenforceable health goals."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 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2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"141.50, 141.61","page":null,"quote":null,"column":"mcl"}},{"id":"3f3b09e0deb1fc94","parameter":"Dichloroethylene, cis-1,2-","value":"63","value_num":63,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:156-59-2","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 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2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"2d1469a01f2f0896","parameter":"Dichloroethylene, cis-1,2-","value":"0.0074","value_num":0.0074,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:156-59-2","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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2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"ssl","column":"mcl"}},{"id":"4fc3a06aaa17510d","parameter":"Dichloroethylene, cis-1,2-","value":"25","value_num":25,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:156-59-2","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","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}}],"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-IA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"cis 1 2 dichloroethylene\", 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-IA"},"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"}]}