{"query":{"parameter":"gross alpha particle activity excluding radon and uranium","place":"US-CA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-CA","US"],"parameter_keys":["name:gross alpha particle activity","name:radioactive substances"],"names_matched":[["gross alpha particle activity excluding radon and uranium","name:gross alpha particle activity"],["radioactive substances gross alpha particle activity including radium 226 but excluding radon and uranium","name:radioactive substances"]],"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":"9a04bd8ae3094727","parameter":"Gross alpha particle activity (excluding radon and uranium)","value":"15","value_num":15,"unit":"pCi/L","direction":"max","kind":"limit","medium":"drinking_water","level":"regional","parameter_key":"name:gross alpha particle activity","place":["US-CA"],"conditions":["(a) Each community and nontransient-noncommunity water system (system) shall comply with the primary MCLs in Table 64442 in the drinking water supplied to the public and use the DLRs for reporting monitoring results:"],"cite":{"instrument":"us_ca_title22_mcl","title":"California Code of Regulations, Title 22 — drinking water maximum contaminant levels: Tables 64431–A (inorganic), 64442 and 64443 (radionuclides), 64444–A (organic), 64449–A and 64449–B (secondary) and 64533–A (disinfection byproducts)","issuer":"State of California, State Water Resources Control Board (Division of Drinking Water)","edition":"California Regulations Related to Drinking Water, September 2026 (the State Water Board's compilation of Titles 17 and 22; it follows the August 2025 compilation), as served 2026-10-15","source_url":"https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/documents/lawbook/drinking-water-regulations.pdf","source_sha256":"db6df322bf1507b6e098a10faf84284b99cba21a48a1832960d9b0b6bd1478bb","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"22 CCR § 64442, Table 64442, Radionuclide Maximum Contaminant Levels (MCLs) and Detection Levels for Purposes of Reporting (DLRs)","page":107,"quote":"Gross Alpha particle activity 15 pCi/L 3 pCi/L (excluding radon and uranium)"}},{"id":"5a849b7c9c077ac0","parameter":"Gross alpha particle activity (excluding radon and uranium)","value":"Zero","value_num":0,"direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"name:gross alpha particle activity","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 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":"141.55","page":null,"quote":null,"column":"mclg"}}],"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-CA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"gross alpha particle activity excluding radon and uranium\", 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-CA"},"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"}]}