Numeric environmental limits and guidelines held for Ontario: 3 instruments of its own and 11 instruments of the places above it, every row cited to its source. Each parameter opens its rows, with what was searched.
Ask your AI assistant and get the cite back: add Passage Data to Claude, ChatGPT, Cursor, VS Code or Microsoft 365 Copilot. Free, no key.
The address to add: https://passage-data.com/mcp
Claude: Customize → Connectors → + Add → Add custom connector; paste the address; choose No sign in. The Free plan holds one custom connector.
ChatGPT (Plus, Pro, Business, Enterprise, Edu, on the web): Settings → Apps → Advanced settings → turn on Developer mode; then Create app, paste the address, no authentication.
Cursor: Add to Cursor(opens Cursor, which asks you to confirm)
VS Code (GitHub Copilot agent mode): Add to VS Code(opens VS Code, which asks you to confirm). On a work account (Copilot Business or Enterprise), your admin decides which MCP servers run; if this one doesn't, ask them to allow https://passage-data.com/mcp.
Microsoft 365 Copilot: someone in your IT who builds agents adds the address in Copilot Studio (the agent's Tools → Add a tool → New tool → Model Context Protocol; authentication None), then publishes the agent to Teams and Microsoft 365 Copilot.
Claude Code: claude mcp add --transport http passage-data https://passage-data.com/mcp
Then ask it, for example: “Which environmental limits apply in Ontario? Cite each one.”
Canadian Ambient Air Quality Standards (CAAQS), environmental quality objectives under CEPA 1999 ss. 54(1) and 55(1): Objectives for Ambient PM2.5 and Ozone, Annex paras 1-4 and footnotes 1-2, Canada Gazette Part I, Vol. 147, No. 21, May 25, 2013 · Canada Gazette, Part I, Volume 147, Number 21: GOVERNMENT NOTICES May 25, 2013 · Canada (CA) · 9 rows · source
CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24) · Summary Table · Canada (CA) · 383 rows · source
CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life — freshwater and marine, short and long term · Summary Table (as served 2026-09-24; each guideline carries its own year) · Canada (CA) · 181 rows · source
Fisheries Act (R.S.C. 1985, c. F-14), s. 36(3) — no deposit of a deleterious substance in water frequented by fish; no value printed · Justice Laws Website, current to 2026-09-21, last amended 2024-11-27 · Canada (CA) · 0 rows · source
Health Canada, Objective for Canadian drinking water quality — per- and polyfluoroalkyl substances (published 2024-08-09) · Objective value · Canada (CA) · 1 row · source
Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations · Justice Laws Website, current to 2026-09-21 · Canada (CA) · 53 rows · source
Meat and Poultry Products Plant Liquid Effluent Regulations (C.R.C., c. 818) — Schedule I authorized deposits · Justice Laws Website, current to 2026-09-21 · Canada (CA) · 25 rows · source
Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act (April 15, 2011), Tables 1-9 — ground water · April 15, 2011 · Ontario (CA-ON) · 1,785 rows · source
Ontario — Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act (April 15, 2011), Tables 1-9 — soil · April 15, 2011 · Ontario (CA-ON) · 4,881 rows · source
Provincial Water Quality Objectives (Ontario MOEE, Water Management: Policies, Guidelines, Provincial Water Quality Objectives, 1994) — Table 2, PWQOs and Interim PWQOs · MOEE July 1994 (reprinted February 1999), as published on ontario.ca (fetched 2026-10-09) · Ontario (CA-ON) · 224 rows · source
Potato Processing Plant Liquid Effluent Regulations (C.R.C., c. 829) — Schedule I authorized deposits · Justice Laws Website, current to 2026-09-21 · Canada (CA) · 9 rows · source
Pulp and Paper Effluent Regulations (SOR/92-269) — s. 14 maximum BOD and suspended solids · Justice Laws Website, current to 2026-09-21 · Canada (CA) · 4 rows · source
Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits · Justice Laws Website, current to 2026-09-21 · Canada (CA) · 16 rows · source
Wastewater Systems Effluent Regulations (SOR/2012-139) — s. 6 effluent quality · Justice Laws Website, current to 2026-09-21, last amended 2026-06-04 · Canada (CA) · 4 rows · source
Read 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.