{"query":{"parameter":"asbestos","place":"US-CA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-CA","US"],"parameter_keys":["cas:1332-21-4","cas:17068-78-9","cas:12001-29-5","name:asbestos, fibers longer than 10 microns in length"],"names_matched":[["asbestos","cas:1332-21-4"],["anthophyllite non asbestos form","cas:17068-78-9"],["asbestos fibers 10 m million fibers l","cas:12001-29-5"],["asbestos fibers l","cas:12001-29-5"],["asbestos fibers longer than 10 microns in length","name:asbestos, fibers longer than 10 microns in length"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":5,"offset":0,"returned":5,"next_offset":null,"rows":[{"id":"6919357cc7078567","parameter":"Asbestos","value":"7,000,000 fibers/L k,s","value_num":7000000,"unit":"fibers/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:1332-21-4","place":["US-CA"],"conditions":["inland surface waters and enclosed bays and estuaries of California (not ocean waters, which the Ocean Plan covers) (40 CFR 131.38(a), (d)(1))","inland waters or enclosed bays and estuaries that include a MUN (municipal and domestic supply) use designation (40 CFR 131.38(d)(2)(i))"],"cite":{"instrument":"us_ca_ctr","title":"California Toxics Rule, 40 CFR 131.38: numeric criteria for priority toxic pollutants for California's inland surface waters and enclosed bays and estuaries (freshwater and saltwater CMC/CCC, human health)","issuer":"US Environmental Protection Agency (promulgated for the State of California)","edition":"40 CFR 131.38(b)(1) Table 1 as republished in full by the final rule 'Water Quality Standards; Establishment of a Numeric Criterion for Selenium for the State of California' (89 FR 101914, December 17, 2024), the table eCFR serves today (as images); paragraphs (c)-(d) from eCFR as of 2026-10-01","source_url":"https://www.govinfo.gov/content/pkg/FR-2024-12-17/pdf/2024-29483.pdf","source_sha256":"563001982d0d74d96f6eb7222df4c125bf5e9809c77ab2f84ff948a3b87edfe2","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 131.38(b)(1) Table 1","page":16,"quote":"15. Asbestos 1332214 7,000,000 fibers/L k,s","transcription":"OCR text layer of a printed table image (Federal Register); the image itself is the authority"}},{"id":"997cae157a8aa3cc","parameter":"Asbestos","value":"7","value_num":7,"unit":"MFL","direction":"max","kind":"limit","medium":"drinking_water","level":"regional","parameter_key":"cas:1332-21-4","place":["US-CA"],"conditions":["Public water systems shall comply with the primary MCLs in Table 64431–A as specified in this article."],"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 § 64431, Table 64431–A, Maximum Contaminant Levels, Inorganic Chemicals","page":91,"quote":"Asbestos 7 MFL*"}},{"id":"c10913f0bcd08acc","parameter":"Asbestos","value":"7 Million fibers/liter (longer than 10 µm)","unit":"mg/l","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:1332-21-4","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":"unchanged"},"section":"141.51, 141.62","page":null,"quote":null,"column":"mclg"}},{"id":"a061f9b11d6b4a44","parameter":"Asbestos","value":"7 Million Fibers/liter (longer than 10 µm)","unit":"mg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:1332-21-4","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":"unchanged"},"section":"141.51, 141.62","page":null,"quote":null,"column":"mcl"}},{"id":"8be5bc18527a9bee","parameter":"Asbestos","value":"7 million fibers/L","value_num":7000000,"unit":"fibers/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:1332-21-4","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","consumption of water + organism: a water designated a drinking-water source and for fish and shellfish (a designated use the state assigns)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table","source_sha256":"a0229d5a613672b46a000c5b9925dd3a23c3e05914bb020b7f739c69cecbb5fe","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Water Quality Criteria — Human Health Criteria Table","page":null,"quote":"Asbestos (P) 1332214 7 million fibers/L — 1991"}}],"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: \"asbestos\", 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"}]}