{"query":{"parameter":"trihalomethanes","place":"US-NV","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NV","US"],"parameter_keys":["name:trihalomethanes","name:trihalomethanes (total)","name:trihalomethanes - total","name:trihalomethanes total","name:trihalomethanes, total","name:total trihalomethanes","name:total trihalomethanes (tthm) (the sum of bromodichloro-methane, dibromochloro- methane, bromoform (tribromomethane) and chloroform (trichloromethane))","name:trihalomethanes totaux","name:tthm (sum of total trihalomethanes) ---"],"names_matched":[["trihalomethanes","name:trihalomethanes"],["trihalomethanes","name:trihalomethanes (total)"],["trihalomethanes","name:trihalomethanes - total"],["trihalomethanes","name:trihalomethanes total"],["trihalomethanes","name:trihalomethanes, total"],["total trihalomethanes","name:total trihalomethanes"],["total trihalomethanes bromoform chlorodibromomethane dichlorobromomethane and chloroform","name:total trihalomethanes"],["total trihalomethanes hms","name:total trihalomethanes"],["total trihalomethanes tthm","name:total trihalomethanes"],["total trihalomethanes tthm the sum of bromodichloro methane dibromochloro methane bromoform tribromomethane and chloroform trichloromethane","name:total trihalomethanes (tthm) (the sum of bromodichloro-methane, dibromochloro- methane, bromoform (tribromomethane) and chloroform (trichloromethane))"],["total trihalomethanes tthms","name:total trihalomethanes"],["trihalomethanes totaux","name:trihalomethanes totaux"],["trihalomethanes totaux chloroforme bromodichloromethane chlorodibromomethane et bromoforme","name:trihalomethanes totaux"],["tthm sum of total trihalomethanes","name:tthm (sum of total trihalomethanes) ---"]],"match":"exact+contains","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":"73aea834e5fffcac","parameter":"Trihalomethanes (total)","value":"100","value_num":100,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:trihalomethanes","place":["US-NV"],"conditions":["receiving_water is freshwater","waters with the beneficial use municipal or domestic supply (the uses each water carries are set in NAC 445A.123 to 445A.2234; site-specific standards for toxic materials take precedence, subsection 1)"],"cite":{"instrument":"us_nv_wqs","title":"Nevada NAC 445A.1236 Standards for toxic materials applicable to designated waters; NAC 445A.1237 selenium for aquatic life, with the Las Vegas Wash's own values; NAC 445A.1233 Colorado River salinity","issuer":"State of Nevada, State Environmental Commission (Division of Environmental Protection)","edition":"NAC Chapter 445A Water Controls effective June 11, 2025, as US EPA posts it in effect for CWA purposes (cover August 20, 2025: EPA approvals since the May 2022 publication in red, removed text as red strikeout)","source_url":"https://www.epa.gov/system/files/documents/2025-11/nvwqs.pdf","source_sha256":"eb1b4a585f250db61459d5e820ab06240338a5084afa75cf6df28dcbf4af2d4d","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"NAC 445A.1236 subsection 2","page":84,"quote":"Trihalomethanes (total)(7) 100b - - -"}},{"id":"b4fe72307b8eae61","parameter":"Total trihalomethanes (TTHM)","value":"0.080","value_num":0.08,"unit":"mg/L","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"name:total trihalomethanes","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level means the maximum permissible level of a contaminant in water which is delivered to any user of a public water system."],"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 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":"141.64","page":null,"quote":null,"column":"mcl"}}],"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-NV"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"trihalomethanes\", 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-NV"},"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"}]}