Passage Data · Cited limits by place · Use it from your AI
12 numeric limits and guidelines for ammonia held for Ontario and the place above it, from 6 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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For programs: this page as JSON at /api/v1/limits?parameter=ammonia&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 |
|---|---|---|---|---|---|---|
| Ammonia | 100 | µg/m³ | daily average | ambient air · limit | averaging period: 24 hour at a point of impingement: the concentration the discharge results in, or would result in according to an approved dispersion model (s. 20 (1), (2)); s. 20 binds every facility's discharges on or after February 1, 2020 (s. 20 (3)(e)) | Ontario Regulation 419/05, Air Pollution Schedule 3, item 7 7. 7664-41-7 Ammonia none 100 none |
| Ammonia (un-ionized) | 20 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 Ammonia (un-ionized) CAS No. 7664-41-7 20 µg/L ( PWQO ) |
| Parameter | Value | Unit | Statistic | Governs | Applies when | Cite |
|---|---|---|---|---|---|---|
| Ammonia (total) | Table | µg/L | surface water · guideline | receiving water: freshwater long-term exposure: CCME's long-term guideline | CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life | |
| Ammonia (un-ionized) | 19 | µg/L | surface water · guideline | receiving water: freshwater long-term exposure: CCME's long-term guideline | CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life | |
| Un-ionized ammonia | 0.50 mg/L expressed as nitrogen (N) | mg/L | monthly average | effluent · limit | cites: MDMER route: direct a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1)) a mine to which the Regulations apply for the first time on or after June 1, 2021, or a recognized closed mine that returns to commercial operation on or after that day (s. 4(1)(a)(i)) | Metal and Diamond Mining Effluent Regulations (SOR/2002-222) Schedule 4, Table 1 — Column 2: maximum authorized monthly mean concentration 6 Zinc 0.40 mg/L 0.60 mg/L 0.80 mg/L 7 Suspended Solids 15.00 mg/L 22.50 mg/L 30.00 mg/L 8 Radium 226 0.37 Bq/L 0.74 Bq/L 1.11 Bq/L 9 Un-ionized ammonia 0.50 mg/L expressed as nitrogen (N) Not applicable 1.00 mg/L expressed as nitrogen (N) |
| Un-ionized ammonia | 1.00 mg/L expressed as nitrogen (N) | mg/L | instantaneous | effluent · limit | cites: MDMER route: direct a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1)) a mine to which the Regulations apply for the first time on or after June 1, 2021, or a recognized closed mine that returns to commercial operation on or after that day (s. 4(1)(a)(i)) | Metal and Diamond Mining Effluent Regulations (SOR/2002-222) Schedule 4, Table 1 — Column 4: maximum authorized concentration in a grab sample 6 Zinc 0.40 mg/L 0.60 mg/L 0.80 mg/L 7 Suspended Solids 15.00 mg/L 22.50 mg/L 30.00 mg/L 8 Radium 226 0.37 Bq/L 0.74 Bq/L 1.11 Bq/L 9 Un-ionized ammonia 0.50 mg/L expressed as nitrogen (N) Not applicable 1.00 mg/L expressed as nitrogen (N) |
| Un-ionized ammonia | 0.50 mg/L expressed as nitrogen (N) | mg/L | monthly average | effluent · limit | cites: MDMER route: direct a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1)) any other mine (s. 4(1)(a)(ii)) | Metal and Diamond Mining Effluent Regulations (SOR/2002-222) Schedule 4, Table 2 — Column 2: maximum authorized monthly mean concentration 6 Zinc 0.50 mg/L 0.75 mg/L 1.00 mg/L 7 Suspended Solids 15.00 mg/L 22.50 mg/L 30.00 mg/L 8 Radium 226 0.37 Bq/L 0.74 Bq/L 1.11 Bq/L 9 Un-ionized ammonia 0.50 mg/L expressed as nitrogen (N) Not applicable 1.00 mg/L expressed as nitrogen (N) |
| Un-ionized ammonia | 1.00 mg/L expressed as nitrogen (N) | mg/L | instantaneous | effluent · limit | cites: MDMER route: direct a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1)) any other mine (s. 4(1)(a)(ii)) | Metal and Diamond Mining Effluent Regulations (SOR/2002-222) Schedule 4, Table 2 — Column 4: maximum authorized concentration in a grab sample 6 Zinc 0.50 mg/L 0.75 mg/L 1.00 mg/L 7 Suspended Solids 15.00 mg/L 22.50 mg/L 30.00 mg/L 8 Radium 226 0.37 Bq/L 0.74 Bq/L 1.11 Bq/L 9 Un-ionized ammonia 0.50 mg/L expressed as nitrogen (N) Not applicable 1.00 mg/L expressed as nitrogen (N) |
| Ammonia Nitrogen | 3.6 | lb per 1,000 barrels of crude oil (× the refinery's reference crude rate) | monthly average | effluent · limit | cites: PRLER route: direct | Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits Schedule I, Column II: monthly amount (the month's mean of daily authorized deposits, s. 7) 4 Ammonia Nitrogen 3.6 5.7 7.2 |
| Ammonia Nitrogen | 5.7 | lb per 1,000 barrels of crude oil (× the refinery's reference crude rate) | effluent · limit | cites: PRLER route: direct the actual deposit may exceed it on no more than one day in each month (s. 5(1)(b)) | Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits Schedule I, Column III: one day amount — not exceeded on more than one day in a month (s. 8(1)) 4 Ammonia Nitrogen 3.6 5.7 7.2 | |
| Ammonia Nitrogen | 7.2 | lb per 1,000 barrels of crude oil (× the refinery's reference crude rate) | daily maximum | effluent · limit | cites: PRLER route: direct | Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits Schedule I, Column IV: maximum daily amount (s. 8(2)) 4 Ammonia Nitrogen 3.6 5.7 7.2 |
| Un-ionized ammonia | less than 1.25 mg/L, expressed as nitrogen (N), at 15˚C ± 1˚C | mg/L | effluent · limit | stream: sanitary route: direct zone: not CA-NT, CA-NU, CA.qc_nl_north_of_54 a wastewater system designed to collect, or collecting in a calendar year, an average daily volume of 100 m3 or more of influent (s. 2(1)); not one on an industrial site whose influent is less than 50% blackwater and greywater (s. 2(4)) | Wastewater Systems Effluent Regulations (SOR/2012-139) — s. 6 effluent quality s. 6(1) the maximum concentration of un-ionized ammonia in the effluent is less than 1.25 mg/L, expressed as nitrogen (N), at 15˚C ± 1˚C |
Not held here: a discharge permit's own limits, and any rule for ammonia 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 “ammonia”: ammonia, ammonia n total, ammonia nitrogen, un ionized ammonia, ammonia as nitrogen, ammonia and ammonium, ammonia n un ionized, azote ammoniacal total, ammonia un ionized as n, azote ammoniacal total n nh4 et n nh3, ammoniaque solution aqueuse d ammoniac, oxirane reaction products with ammonia distn residues, and 17 more (in the JSON).
2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe — 4 rows here30e528bdc3a3546afb3defff4dae9b1dacb362e192680e127bd788d7f97c8ce8 — 3 rows heref484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499 — 2 rows herefb70ac7944efd8d2c48c508a8c045838d941dac28eb72b357b9a501b222ac17e — 1 row heref4eddd3cd97cf5abb8678d040947bdaa2b4afae406f055948457d372d3b47931 — 1 row here0a60e10f783f7aca672792303dffcca1525133eb34eb32711543cb3cf4bbb955 — 1 row heref484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499 — no row heredb95b0a149728b0f0b1e1b1314d87ecdf46a91e1edfec4a7006fc3cbe0080bd6 — no row here9451ad8bfa566c0625ae4fcb362272cbb0e20040c548540f362488118c300b89 — no row here32a42a0d382cdd90729dd9750f47889782bd00d4af8dfd34f2b9aaf6f2678c6c — no row herec60e2a2dfa9a10c2ddd314b391bf66215ad599732f38b4c5a15fe793d8c28841 — no row here4062fa480e7483c42e6f5ea8d49a00ae1c0d0590002fa4989e58299786cf331b — no row here4062fa480e7483c42e6f5ea8d49a00ae1c0d0590002fa4989e58299786cf331b — no row hereb622b94b73c161ff6e2a474712cda6344eadfff705b8a5d312d57ce51df419d0 — no row here691ca3953a6dd6ae66b4c72737944caa68ed76710447df642a16716dd25027a3 — no row herecc8432e6a4dd1834ff4dd43d5b5fb98f09b1f7af7952e36154febcc649504eb4 — 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.