{"query":{"parameter":"1 2 trans dichlorethylene","place":"US-IA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-IA","US"],"parameter_keys":["name:1,2-trans-dichlorethylene"],"names_matched":[["1 2 trans dichlorethylene","name:1,2-trans-dichlorethylene"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"1f7f1ca23db269cf","parameter":"1,2-trans-Dichlorethylene","value":"10*(f)","value_num":10,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:1,2-trans-dichlorethylene","place":["US-IA"],"conditions":["receiving_water is freshwater","class HH waters: human health (fish consumption)","also class C (note (f))"],"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":"unchanged"},"section":"567 IAC 61.3(3) Table 1","page":16,"quote":"1,2-trans-Dichlorethylene HumanHealth+—F&W — — — — — — — 10*(f)"}},{"id":"4a913b410c2c5a4b","parameter":"1,2-trans-Dichlorethylene","value":"140(e)","value_num":140,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:1,2-trans-dichlorethylene","place":["US-IA"],"conditions":["receiving_water is freshwater","class HH waters: human health (fish consumption)","also class B(LW), B(CW1), B(WW-1), B(WW-2) or B(WW-3) (note (e))"],"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":"unchanged"},"section":"567 IAC 61.3(3) Table 1","page":16,"quote":"HumanHealth—Fish — — — — — — — 140(e)"}}],"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: \"1 2 trans dichlorethylene\", 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"}]}