{"query":{"parameter":"cadmium","place":"US-CA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-CA","US"],"parameter_keys":["cas:7440-43-9","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc","name:cadmium - total","name:cadmium, total","name:cadmium, total recoverable","name:total cadmium"],"names_matched":[["cadmium","cas:7440-43-9"],["arsenic cadmium h copper h lead h mercury zinc","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h mercury zinc h","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["arsenic cadmium h copper h lead h zinc h","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["cadmium h copper h mercury lead h zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["cadmium h copper h mercury lead h zinc h","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["cadmium total","name:cadmium - total"],["cadmium total","name:cadmium, total"],["cadmium total recoverable","name:cadmium, total recoverable"],["total cadmium","name:total cadmium"],["total cadmium freshwater","name:total cadmium"],["total cadmium marine","name:total cadmium"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":617,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"b7bc11c2541ad44d","parameter":"Cadmium","value":"4.3 e,i,m,w,x","value_num":4.3,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is freshwater","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))","freshwater criteria: waters whose salinity is 1 part per thousand or less 95% or more of the time; between 1 and 10 ppt the more stringent of the freshwater and saltwater criteria applies (40 CFR 131.38(c)(3))","hardness 100 mg/L as CaCO3 (note e: the value displayed corresponds to a total hardness of 100 mg/L; other hardness takes the equations of 40 CFR 131.38(b)(2))"],"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":"4. Cadmium b 7440439 4.3 2.2 e,i,m,w 42i,m 9.3 i,m n n e,i,m,w,x 5a. Chromium (III) 16065831 550 e,i,m,o 180 e,i,m,o n n 5b. Chromium (VI) b 18540299 16 i,m,w 1","transcription":"OCR text layer of a printed table image (Federal Register); the image itself is the authority"}},{"id":"6e825f8d46aefeef","parameter":"Cadmium","value":"2.2 e,i,m,w","value_num":2.2,"unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is freshwater","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))","freshwater criteria: waters whose salinity is 1 part per thousand or less 95% or more of the time; between 1 and 10 ppt the more stringent of the freshwater and saltwater criteria applies (40 CFR 131.38(c)(3))","hardness 100 mg/L as CaCO3 (note e: the value displayed corresponds to a total hardness of 100 mg/L; other hardness takes the equations of 40 CFR 131.38(b)(2))"],"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":"4. Cadmium b 7440439 4.3 2.2 e,i,m,w 42i,m 9.3 i,m n n e,i,m,w,x 5a. Chromium (III) 16065831 550 e,i,m,o 180 e,i,m,o n n 5b. Chromium (VI) b 18540299 16 i,m,w 1","transcription":"OCR text layer of a printed table image (Federal Register); the image itself is the authority"}},{"id":"526010a83622e152","parameter":"Cadmium","value":"42i,m","value_num":42,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is marine","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))","saltwater criteria: waters whose salinity is 10 parts per thousand or more 95% or more of the time; between 1 and 10 ppt the more stringent of the freshwater and saltwater criteria applies (40 CFR 131.38(c)(3))"],"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":"4. Cadmium b 7440439 4.3 2.2 e,i,m,w 42i,m 9.3 i,m n n e,i,m,w,x 5a. Chromium (III) 16065831 550 e,i,m,o 180 e,i,m,o n n 5b. Chromium (VI) b 18540299 16 i,m,w 1","transcription":"OCR text layer of a printed table image (Federal Register); the image itself is the authority"}},{"id":"9ddad388ad4078b2","parameter":"Cadmium","value":"9.3 i,m","value_num":9.3,"unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is marine","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))","saltwater criteria: waters whose salinity is 10 parts per thousand or more 95% or more of the time; between 1 and 10 ppt the more stringent of the freshwater and saltwater criteria applies (40 CFR 131.38(c)(3))"],"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":"4. Cadmium b 7440439 4.3 2.2 e,i,m,w 42i,m 9.3 i,m n n e,i,m,w,x 5a. Chromium (III) 16065831 550 e,i,m,o 180 e,i,m,o n n 5b. Chromium (VI) b 18540299 16 i,m,w 1","transcription":"OCR text layer of a printed table image (Federal Register); the image itself is the authority"}},{"id":"692e3559b794b9b5","parameter":"Cadmium (water)","value":"2.5E-01","value_num":0.25,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["Tier 1 ESLs: one level per chemical and medium for a generic site (residential land use, groundwater a drinking-water resource, shallow soil); a screening level is not a cleanup standard"],"cite":{"instrument":"us_ca_esl_groundwater","title":"California, San Francisco Bay RWQCB — Environmental Screening Levels (ESLs), Tier 1, 2025 (Rev. 4) — groundwater","issuer":"San Francisco Bay Regional Water Quality Control Board","edition":"2025 (Rev. 4)","source_url":"https://www.waterboards.ca.gov/sanfranciscobay/water_issues/programs/ESL/ESL_Summary_Tables_Rev4.pdf","source_sha256":null,"fetched_at":"2026-09-30","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"eau","column":"tier1"}},{"id":"6ee9fe2215fb4d03","parameter":"Cadmium (soil)","value":"1.9E+00","value_num":1.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["Tier 1 ESLs: one level per chemical and medium for a generic site (residential land use, groundwater a drinking-water resource, shallow soil); a screening level is not a cleanup standard"],"cite":{"instrument":"us_ca_esl_soil","title":"California, San Francisco Bay RWQCB — Environmental Screening Levels (ESLs), Tier 1, 2025 (Rev. 4) — soil","issuer":"San Francisco Bay Regional Water Quality Control Board","edition":"2025 (Rev. 4)","source_url":"https://www.waterboards.ca.gov/sanfranciscobay/water_issues/programs/ESL/ESL_Summary_Tables_Rev4.pdf","source_sha256":null,"fetched_at":"2026-09-30","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"tier1"}},{"id":"b99b6c1772011da6","parameter":"Cadmium","value":"1.","value_num":1,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is marine","ocean waters of California (the territorial sea and the waters beyond the enclosed bays, estuaries and coastal lagoons): the Ocean Plan's jurisdiction","in the receiving water upon completion of initial dilution (chapter III.C.3)"],"cite":{"instrument":"us_ca_ocean_plan","title":"Water Quality Control Plan for Ocean Waters of California (California Ocean Plan, 2019): Table 3 water quality objectives, Table 4 effluent limitations, and the salinity limitation for desalination brine","issuer":"State of California, State Water Resources Control Board","edition":"California Ocean Plan 2019, effective February 4, 2019 (State Water Resources Control Board; 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includes the 2015 desalination amendment, effective January 28, 2016), as the State Water Board serves it 2026-10-14","source_url":"https://www.waterboards.ca.gov/water_issues/programs/ocean/docs/oceanplan2019.pdf","source_sha256":"cbff9eaf5b7df1c9b818190851d4196e26c53b56b1860ce11fc44bdf125a5d6c","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Ocean Plan chapter II.D, Table 3, objectives for protection of marine aquatic life","page":17,"quote":null}},{"id":"00a46f2b9c1d5b1a","parameter":"Cadmium","value":"10.","value_num":10,"unit":"µg/L","statistic":"instant","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-43-9","place":["US-CA"],"conditions":["receiving_water is marine","ocean waters of California (the territorial sea and the waters beyond the enclosed bays, estuaries and coastal lagoons): the Ocean Plan's jurisdiction","in the receiving water upon completion of initial dilution (chapter III.C.3)"],"cite":{"instrument":"us_ca_ocean_plan","title":"Water Quality Control Plan for Ocean Waters of California (California Ocean Plan, 2019): Table 3 water quality objectives, Table 4 effluent limitations, and the salinity limitation for desalination brine","issuer":"State of California, State Water Resources Control Board","edition":"California Ocean Plan 2019, effective February 4, 2019 (State Water Resources Control Board; includes the 2015 desalination amendment, effective January 28, 2016), as the State Water Board serves it 2026-10-14","source_url":"https://www.waterboards.ca.gov/water_issues/programs/ocean/docs/oceanplan2019.pdf","source_sha256":"cbff9eaf5b7df1c9b818190851d4196e26c53b56b1860ce11fc44bdf125a5d6c","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Ocean Plan chapter II.D, Table 3, objectives for protection of marine aquatic life","page":17,"quote":null}},{"id":"4c1b65f3a9b46a89","parameter":"Cadmium","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"limit","medium":"drinking_water","level":"regional","parameter_key":"cas:7440-43-9","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":"Cadmium 0.005"}},{"id":"438d9461762b0a96","parameter":"Cadmium","value":"1.0","value_num":1,"unit":"mg/L","direction":"max","kind":"threshold","medium":"leachate","level":"national","parameter_key":"cas:7440-43-9","place":["US"],"conditions":["(a) A solid waste (except manufactured gas plant waste) exhibits the characteristic of toxicity if, using the Toxicity Characteristic Leaching Procedure, test Method 1311 in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, as incorporated by reference in § 260.11 of this chapter, the extract from a representative sample of the waste contains any of the contaminants listed in table 1 at the concentration equal to or greater than the respective value given in that table. Where the waste contains less than 0.5 percent filterable solids, the waste itself, after filtering using the methodology outlined in Method 1311, is considered to be the extract for the purpose of this section."],"cite":{"instrument":"us_40cfr261_24","title":"40 CFR 261.24 — Toxicity characteristic: Table 1, maximum concentration of contaminants for the toxicity characteristic (TCLP regulatory levels)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 261.24 as of 2026-10-13 (title 40 up to date as of that day)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=261&section=261.24","source_sha256":"3a1ec9b0d3051c70e471e359275657b0fa6d98e80927d2217e82b2dbbca60961","fetched_at":"2026-10-15","section":"40 CFR 261.24, Table 1","page":null,"quote":"D006 Cadmium 7440-43-9 1.0"}},{"id":"61943f113fbd68f0","parameter":"Cadmium","value":"0.69","value_num":0.69,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:7440-43-9","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","section":"40 CFR 268.48, Table UTS, Inorganic Constituents, wastewater standard","page":null,"quote":"Cadmium 7440-43-9 0.69 0.11 mg/l TCLP"}},{"id":"dc91caad3b27226c","parameter":"Cadmium","value":"0.11 mg/l TCLP","value_num":0.11,"unit":"mg/L TCLP","statistic":"instant","direction":"max","kind":"limit","medium":"leachate","level":"national","parameter_key":"cas:7440-43-9","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","section":"40 CFR 268.48, Table UTS, Inorganic Constituents, nonwastewater standard","page":null,"quote":"Cadmium 7440-43-9 0.69 0.11 mg/l TCLP"}},{"id":"f4fed814193e1e0d","parameter":"Cd","value":"1.2","value_num":1.2,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-43-9","place":["US"],"conditions":["route is sewer","cites is 40 CFR 413","the discharge is of the Subpart A—Electroplating of Common Metals Subcategory","existing sources (PSES)","(b) For a source discharging less than 38,000 liters (10,000 gal.) per calendar day of electroplating process wastewater the following limitations shall apply:","table: Subpart A—Common Metals Facilities Discharging Less Than 38,000 Liters Per Day PSES Limitations (mg/l)"],"cite":{"instrument":"us_40cfr413","title":"40 CFR Part 413 — PART 413—ELECTROPLATING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=413","source_sha256":"9c6c38baf048e0e1ed5f2c05df397ea581d48822b23c4b294e52b960b2d547f9","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 413.14 (PSES)","page":null,"quote":"Cd 1.2 .7"}},{"id":"dee7a50742a8188b","parameter":"Cd","value":".7","value_num":0.7,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-43-9","place":["US"],"conditions":["route is sewer","cites is 40 CFR 413","the discharge is of the Subpart A—Electroplating of Common Metals Subcategory","existing sources (PSES)","(b) For a source discharging less than 38,000 liters (10,000 gal.) per calendar day of electroplating process wastewater the following limitations shall apply:","table: Subpart A—Common Metals Facilities Discharging Less Than 38,000 Liters Per Day PSES Limitations 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