Passage Data · Cited limits by place · Use it from your AI
64 numeric limits and guidelines for cobalt held for Ontario and the place above it, from 5 instruments, each cited to its instrument, edition, section or page and quoted text. The register was built from 273 instruments. Everything held for Ontario
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claude mcp add --transport http passage-data https://passage-data.com/mcp codex mcp add passage-data --url https://passage-data.com/mcp gemini mcp add --transport http passage-data https://passage-data.com/mcp Then ask it, for example: “What are the cobalt limits in Ontario? Cite each one.”
For programs: this page as JSON at /api/v1/limits?parameter=cobalt&place=CA-ON; the same at https://passage-data.com/mcp, a remote MCP server (tool find_limits). Every tool · llms.txt · OpenAPI
| Parameter | Value | Unit | Statistic | Governs | Applies when | Cite |
|---|---|---|---|---|---|---|
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 1: Full Depth Background Site Condition Standards Ground Water (µg ⁄ L) - All Types of Property Uses | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 66 | µg/L | groundwater · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Non-potable ground water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 66 | µg/L | groundwater · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Non-potable ground water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 66 | µg/L | groundwater · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Non-Potable Ground Water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 66 | µg/L | groundwater · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Non-Potable Ground Water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Potable Ground Water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 52 | µg/L | groundwater · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Non-Potable Ground Water µg ⁄ L - All Types of Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 52 | µg/L | groundwater · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Non-Potable Ground Water µg ⁄ L - All Types of Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 3.8 | µg/L | groundwater · limit | Table 8: Generic Site Condition Standards for Use within 30 m of a Water Body in a Potable GroundWater Condition Ground Water (µg ⁄ L) - All Types of Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 52 | µg/L | groundwater · limit | Table 9: Generic Site Condition Standards for Use within 30 m of a Water Body in a Non-Potable Ground Water Condition Ground Water(µg ⁄ L) - All Types of Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 19 | µg/g | soil · limit | Table 1: Full Depth Background Site Condition Standards Soil (other than sediment) µg ⁄ g - Agricultural or Other Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 21 | µg/g | soil · limit | Table 1: Full Depth Background Site Condition Standards Soil (other than sediment) µg ⁄ g - Residential/ Parkland/Institutional/ Industrial/Commercial/ Community Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Agricultural or Other Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Agricultural or Other Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 2: Full Depth Generic Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 3: Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Surface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Surface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 250 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Subsurface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 250 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Subsurface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Surface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Surface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 2500 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Subsurface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 2500 | µg/g | soil · limit | Table 4: Stratified Site Condition Standards in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Subsurface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Surface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Surface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 250 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Subsurface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 250 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use of Subsurface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Surface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Surface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 2500 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Subsurface Soil The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 2500 | µg/g | soil · limit | Table 5: Stratified Site Condition Standards in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use of Subsurface Soil the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Agricultural or Other Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Agricultural or Other Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 6: Generic Site Condition Standards for Shallow Soils in a Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Residential/Parkland/ Institutional Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 80 | µg/g | soil · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use The value for coarse soils is the one that is not bracketed | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 100 | µg/g | soil · limit | Table 7: Generic Site Condition Standards for Shallow Soils in a Non-Potable Ground Water Condition Soil Standards (other than sediment) µg ⁄ g - Industrial/Commercial/ Community Property Use the value for medium and fine textured soils is given within brackets | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 8: Generic Site Condition Standards for Use within 30 m of a Water Body in a Potable GroundWater Condition Soil (other than sediment) µg ⁄ g - Agricultural or Other Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 8: Generic Site Condition Standards for Use within 30 m of a Water Body in a Potable GroundWater Condition Soil (other than sediment) µg ⁄ g - Residential/ Parkland/Institutional/ Industrial/Commercial/ Community Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt | 22 | µg/g | soil · limit | Table 9: Generic Site Condition Standards for Use within 30 m of a Water Body in a Non-Potable Ground Water Condition Soil (other than sediment) µg ⁄ g - Residential/ Parkland/Institutional/ Industrial/Commercial/ Community Property Use | Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Pr… | |
| Cobalt-57 | 40.0 | Bq/L | drinking water · limit | drinking water a drinking water system provides (Safe Drinking Water Act, 2002; s. 2: a person who immediately contacts the medical officer of health, and takes corrective action under O. Reg. 170/03 Schedules 17-18, is deemed not to contravene) Radionuclide concentrations that exceed the standard may be tolerated for a short period, as long as the annual average concentrations remain below the standard and the restriction (see immediately below) for multiple radionuclides is met. Restriction for multiple radionuclides: Based on International Commission on Radiological Protection (ICRP) Publication 26, if two or more radionuclides are present, the sum of the quotients of the observed concentration in becquerels per litre divided by the respective standard in becquerels per litre for each of the radionuclides detected must be less than or equal to one. | Ontario Regulation 169/03, Ontario Drinking Water Quality Standards — Schedules 1-3 Schedule 3, Radiological Standards, Table 2 Artificial Radionuclides, item 17 17. Cobalt-57 40.0 | |
| Cobalt-58 | 20.0 | Bq/L | drinking water · limit | drinking water a drinking water system provides (Safe Drinking Water Act, 2002; s. 2: a person who immediately contacts the medical officer of health, and takes corrective action under O. Reg. 170/03 Schedules 17-18, is deemed not to contravene) Radionuclide concentrations that exceed the standard may be tolerated for a short period, as long as the annual average concentrations remain below the standard and the restriction (see immediately below) for multiple radionuclides is met. Restriction for multiple radionuclides: Based on International Commission on Radiological Protection (ICRP) Publication 26, if two or more radionuclides are present, the sum of the quotients of the observed concentration in becquerels per litre divided by the respective standard in becquerels per litre for each of the radionuclides detected must be less than or equal to one. | Ontario Regulation 169/03, Ontario Drinking Water Quality Standards — Schedules 1-3 Schedule 3, Radiological Standards, Table 2 Artificial Radionuclides, item 18 18. Cobalt-58 20.0 | |
| Cobalt-60 | 2.0 | Bq/L | drinking water · limit | drinking water a drinking water system provides (Safe Drinking Water Act, 2002; s. 2: a person who immediately contacts the medical officer of health, and takes corrective action under O. Reg. 170/03 Schedules 17-18, is deemed not to contravene) Radionuclide concentrations that exceed the standard may be tolerated for a short period, as long as the annual average concentrations remain below the standard and the restriction (see immediately below) for multiple radionuclides is met. Restriction for multiple radionuclides: Based on International Commission on Radiological Protection (ICRP) Publication 26, if two or more radionuclides are present, the sum of the quotients of the observed concentration in becquerels per litre divided by the respective standard in becquerels per litre for each of the radionuclides detected must be less than or equal to one. | Ontario Regulation 169/03, Ontario Drinking Water Quality Standards — Schedules 1-3 Schedule 3, Radiological Standards, Table 2 Artificial Radionuclides, item 19 19. Cobalt-60 2.0 | |
| Cobalt | 0.9 µg/L | µg/L | surface water · guideline | receiving water: freshwater | Provincial Water Quality Objectives (Ontario MOEE, Water Management Appendix A, Table 2 — Table of PWQOs and Interim PWQOs Cobalt CAS No. 7440-48-4 0.9 µg/L (Interim PWQO ) |
| Parameter | Value | Unit | Statistic | Governs | Applies when | Cite |
|---|---|---|---|---|---|---|
| Cobalt | 40 | mg/kg | soil · guideline | Concentration (mg/kg dry weight) Agricultural | CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table,… | |
| Cobalt | 50 | mg/kg | soil · guideline | Concentration (mg/kg dry weight) Residential/ parkland | CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table,… | |
| Cobalt | 300 | mg/kg | soil · guideline | Concentration (mg/kg dry weight) Commercial | CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table,… | |
| Cobalt | 300 | mg/kg | soil · guideline | Concentration (mg/kg dry weight) Industrial | CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table,… |
Not held here: a discharge permit's own limits, and any rule for cobalt outside the 17 instruments we hold for this place and the places above it. A row missing here is missing from our sources, not from the law.
Free check: send your permit or your lab results, and we check each number against these rows, every verdict cited to its page, by email within 5 business days. Or send the link to a rule we do not hold: we read it and cite it by page.
Every instrument we hold for Ontario (CA-ON) and the place above it, Canada (CA): 17 instruments, for every parameter name matching “cobalt”: cobalt, cobalt 57, cobalt 58, cobalt 60, cobalt total.
4062fa480e7483c42e6f5ea8d49a00ae1c0d0590002fa4989e58299786cf331b — 41 rows here4062fa480e7483c42e6f5ea8d49a00ae1c0d0590002fa4989e58299786cf331b — 15 rows heref484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499 — 4 rows hereb622b94b73c161ff6e2a474712cda6344eadfff705b8a5d312d57ce51df419d0 — 3 rows heref4eddd3cd97cf5abb8678d040947bdaa2b4afae406f055948457d372d3b47931 — 1 row heref484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499 — no row heredb95b0a149728b0f0b1e1b1314d87ecdf46a91e1edfec4a7006fc3cbe0080bd6 — no row here9451ad8bfa566c0625ae4fcb362272cbb0e20040c548540f362488118c300b89 — no row here32a42a0d382cdd90729dd9750f47889782bd00d4af8dfd34f2b9aaf6f2678c6c — no row here2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe — no row herec60e2a2dfa9a10c2ddd314b391bf66215ad599732f38b4c5a15fe793d8c28841 — no row herefb70ac7944efd8d2c48c508a8c045838d941dac28eb72b357b9a501b222ac17e — no row here691ca3953a6dd6ae66b4c72737944caa68ed76710447df642a16716dd25027a3 — no row herecc8432e6a4dd1834ff4dd43d5b5fb98f09b1f7af7952e36154febcc649504eb4 — no row here30e528bdc3a3546afb3defff4dae9b1dacb362e192680e127bd788d7f97c8ce8 — no row here0a60e10f783f7aca672792303dffcca1525133eb34eb32711543cb3cf4bbb955 — no row hereRead from public law and public agency files. A row missing here is missing from our sources, not from the law of the place. Check the cited source before relying on a value.