{"query":{"parameter":"pentachloroethane","place":"US-RI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-RI","US"],"parameter_keys":["cas:76-01-7"],"names_matched":[["pentachloroethane","cas:76-01-7"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":6,"offset":0,"returned":6,"next_offset":null,"rows":[{"id":"fe424d88068fc8a2","parameter":"Pentachloroethane","value":"362*","value_num":362,"unit":"µg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:76-01-7","place":["US-RI"],"conditions":["receiving_water is freshwater","fresh waters (salinity 1 ppt or less; brackish 1-10 ppt takes the more stringent)"],"cite":{"instrument":"us_ri_wqs","title":"250-RICR-150-05-1 Water Quality Regulations (Rhode Island), § 1.26(J) acute and chronic aquatic life criteria for freshwater and saltwater and human health criteria; § 1.10 class pH","issuer":"State of Rhode Island, Department of Environmental Management","edition":"effective January 13, 2026, as US EPA posts it in effect for Clean Water Act purposes (the chronic mercury revisions and the freshwater xylene criteria still under EPA review)","source_url":"https://www.epa.gov/system/files/documents/2026-04/rhode-island-wqs.pdf","source_sha256":"6a4f444874a8d35b77506ed07b9c2f70c467c8fef3325b8a09ddfc78df5b3743","fetched_at":"2026-10-10","section":"250-RICR-150-05-1 § 1.26(J)","page":172,"quote":null}},{"id":"79370e4624bab402","parameter":"Pentachloroethane","value":"8.0*","value_num":8,"unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:76-01-7","place":["US-RI"],"conditions":["receiving_water is freshwater","fresh waters (salinity 1 ppt or less)"],"cite":{"instrument":"us_ri_wqs","title":"250-RICR-150-05-1 Water Quality Regulations (Rhode Island), § 1.26(J) acute and chronic aquatic life criteria for freshwater and saltwater and human health criteria; § 1.10 class pH","issuer":"State of Rhode Island, Department of Environmental Management","edition":"effective January 13, 2026, as US EPA posts it in effect for Clean Water Act purposes (the chronic mercury revisions and the freshwater xylene criteria still under EPA review)","source_url":"https://www.epa.gov/system/files/documents/2026-04/rhode-island-wqs.pdf","source_sha256":"6a4f444874a8d35b77506ed07b9c2f70c467c8fef3325b8a09ddfc78df5b3743","fetched_at":"2026-10-10","section":"250-RICR-150-05-1 § 1.26(J)","page":172,"quote":null}},{"id":"8ff538a819a014f7","parameter":"Pentachloroethane","value":"7.7","value_num":7.7,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:76-01-7","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":"1d0f247bcbdf55d0","parameter":"Pentachloroethane","value":"36","value_num":36,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:76-01-7","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":"dccefcb75cf9346c","parameter":"Pentachloroethane","value":"0.00031","value_num":0.00031,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:76-01-7","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":"85a2a1de360f4ecc","parameter":"Pentachloroethane","value":"0.65","value_num":0.65,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:76-01-7","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"}}],"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-RI"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"pentachloroethane\", 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-RI"},"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"}]}