{"query":{"parameter":"uranium","place":"US-CA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-CA","US"],"parameter_keys":["cas:7440-61-1","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","name:gross alpha particle activity","name:gross alpha particles including radium-226,but not radon or uranium","name:radioactive substances","name:uranium-234","name:uranium-235","name:uranium-238","name:uranium-238 series","name:uranium - total"],"names_matched":[["uranium","cas:7440-61-1"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc h","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc"],["gross alpha particle activity excluding radon and uranium","name:gross alpha particle activity"],["gross alpha particle activity including radium 226 but excluding radon and uranium","name:gross alpha particle activity"],["gross alpha particle activity including radium 226 excluding radon and uranium","name:gross alpha particle activity"],["gross alpha particles including radium 226 but not radon or uranium","name:gross alpha particles including radium-226,but not radon or uranium"],["radioactive substances gross alpha particle activity including radium 226 but excluding radon and uranium","name:radioactive substances"],["uranium 234","name:uranium-234"],["uranium 235","name:uranium-235"],["uranium 238","name:uranium-238"],["uranium 238 238u 234th 234mpa 234u","name:uranium-238"],["uranium 238 series","name:uranium-238 series"],["uranium 238 series all progeny","name:uranium-238 series"],["uranium total","name:uranium - total"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":15,"offset":0,"returned":15,"next_offset":null,"rows":[{"id":"900191af181c8fbb","parameter":"Uranium","value":"20","value_num":20,"unit":"pCi/L","direction":"max","kind":"limit","medium":"drinking_water","level":"regional","parameter_key":"cas:7440-61-1","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 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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","section":"22 CCR § 64442, Table 64442, Radionuclide Maximum Contaminant Levels (MCLs) and Detection Levels for 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