{"query":{"parameter":"cyanide free","place":"CA-AB","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-AB","CA"],"parameter_keys":["cas:57-12-5","name:cyanide - free","name:cyanide, free","name:cyanide, easily liberated","name:cianuri liberi","name:cianuri totali","cas:592-01-8","cas:506-77-4","cas:544-92-3","name:cyanide,","name:cyanide a","name:cyanide, available or total","name:cyanide (total-","name:cyanide total","name:cyanide, total","name:cyanide weak acid dissociable","cas:107-12-0","cas:74-90-8","cas:75-05-8","cas:151-50-8","cas:506-61-6","cas:506-64-9","cas:143-33-9","name:total cyanide","cas:557-21-1","name:cyanures disponibles","name:cyanures totaux"],"names_matched":[["cyanide free","cas:57-12-5"],["cyanide free","name:cyanide - free"],["cyanide free","name:cyanide, free"],["cyanid leicht freisetzbar","name:cyanide, easily liberated","cyanid"],["cianuri liberi","name:cianuri liberi","cianuri"],["cianuri totali","name:cianuri totali","cianuri"],["cianuri totali come cn","name:cianuri totali","cianuri"],["calcium cyanide","cas:592-01-8","cyanide"],["calcium cyanide ca cn 2","cas:592-01-8","cyanide"],["chlorine cyanide","cas:506-77-4","cyanide"],["copper cyanide","cas:544-92-3","cyanide"],["copper cyanide cu cn","cas:544-92-3","cyanide"],["copper cyanide cucn","cas:544-92-3","cyanide"],["copper i cyanide","cas:544-92-3","cyanide"],["cyanide","name:cyanide,","cyanide"],["cyanide a","name:cyanide a","cyanide"],["cyanide available or total","name:cyanide, available or total","cyanide"],["cyanide easily liberated","name:cyanide, easily liberated","cyanide"],["cyanide total","name:cyanide (total-","cyanide"],["cyanide total","name:cyanide total","cyanide"],["cyanide total","name:cyanide, total","cyanide"],["cyanide weak acid dissociable","name:cyanide weak acid dissociable","cyanide"],["cyanide weak acid dissociable total","name:cyanide weak acid dissociable","cyanide"],["ethyl cyanide","cas:107-12-0","cyanide"],["ethyl cyanide propanenitrile","cas:107-12-0","cyanide"],["hydrogen cyanide","cas:74-90-8","cyanide"],["hydrogen cyanide as cyanide","cas:74-90-8","cyanide"],["methyl cyanide","cas:75-05-8","cyanide"],["potassium cyanide","cas:151-50-8","cyanide"],["potassium cyanide k cn","cas:151-50-8","cyanide"],["potassium silver cyanide","cas:506-61-6","cyanide"],["silver cyanide","cas:506-64-9","cyanide"],["silver cyanide ag cn","cas:506-64-9","cyanide"],["sodium cyanide","cas:143-33-9","cyanide"],["sodium cyanide as cyanide","cas:143-33-9","cyanide"],["sodium cyanide na cn","cas:143-33-9","cyanide"],["total cyanide","name:total cyanide","cyanide"],["total cyanide freshwater","name:total cyanide","cyanide"],["total cyanide marine","name:total cyanide","cyanide"],["zinc cyanide","cas:557-21-1","cyanide"],["zinc cyanide zn cn 2","cas:557-21-1","cyanide"],["cyanures disponibles","name:cyanures disponibles","cyanures"],["cyanures disponibles cn","name:cyanures disponibles","cyanures"],["cyanures totaux","name:cyanures totaux","cyanures"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":32,"offset":0,"returned":32,"next_offset":null,"rows":[{"id":"789df9cd8760d84b","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Natural Area","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, fine soil, Natural Area","page":40,"quote":null}},{"id":"14a48ee70737f0d9","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Agricultural","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, fine soil, Agricultural","page":40,"quote":null}},{"id":"5a2467c2740684b1","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Residential/Parkland","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, fine soil, Residential/Parkland","page":40,"quote":null}},{"id":"77ec2105486a49ef","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Commercial/Industrial","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, fine soil, Commercial/Industrial","page":40,"quote":null}},{"id":"d949af97ae60d5eb","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Natural Area","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, coarse soil, Natural Area","page":40,"quote":null}},{"id":"57124bfa9ade537b","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Agricultural","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, coarse soil, Agricultural","page":40,"quote":null}},{"id":"64d051acded63135","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Residential/Parkland","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, coarse soil, Residential/Parkland","page":40,"quote":null}},{"id":"43512edfa3c502b5","parameter":"Cyanide (free)","value":"0.005","value_num":0.005,"unit":"mg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Commercial/Industrial","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_gw","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Table 2, groundwater","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 2, Alberta Tier 1 Groundwater Remediation Guidelines, coarse soil, Commercial/Industrial","page":40,"quote":null}},{"id":"54301d243937d955","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Natural Area","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, fine soil, Natural Area","page":34,"quote":null}},{"id":"b64de2f0dcbc471b","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Agricultural","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, fine soil, Agricultural","page":34,"quote":null}},{"id":"b83f7a8996ce7aec","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Residential/Parkland","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, fine soil, Residential/Parkland","page":34,"quote":null}},{"id":"18d8a8076970fbfb","parameter":"Cyanide (free)","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Commercial","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, fine soil, Commercial","page":34,"quote":null}},{"id":"740a3e71fd3f18c6","parameter":"Cyanide (free)","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Industrial","fine-grained soil (50% or more by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, fine soil, Industrial","page":34,"quote":null}},{"id":"5aa1ee2c911b2bcf","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Natural Area","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, coarse soil, Natural Area","page":34,"quote":null}},{"id":"20fcff152873d5b0","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Agricultural","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, coarse soil, Agricultural","page":34,"quote":null}},{"id":"5f1d8fb5c0a3913a","parameter":"Cyanide (free)","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Residential/Parkland","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, coarse soil, Residential/Parkland","page":34,"quote":null}},{"id":"4ddf9f5edc2f7ff5","parameter":"Cyanide (free)","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Commercial","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, coarse soil, Commercial","page":34,"quote":null}},{"id":"a38079c822deef3c","parameter":"Cyanide (free)","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"regional","parameter_key":"cas:57-12-5","place":["CA-AB"],"conditions":["land use: Industrial","coarse-grained soil (less than 50% by mass passes a 75 μm sieve)","Tier 1: a generic guideline, applied where the site's conditions are consistent with Tier 1 (s. 5.1.5); otherwise, or where it is exceeded, a Tier 2 guideline or exposure control may replace it"],"cite":{"instrument":"ca_ab_tier1_soil","title":"Alberta Tier 1 Soil and Groundwater Remediation Guidelines (June 2024) — Tables 1, 3 and 4, soil","issuer":"Alberta Environment and Protected Areas (Lands Policy and Programs Branch)","edition":"Updated June 27, 2024 (EPA, Lands Policy, 2024, No. 1; ISBN 978-1-4601-6067-1): previous editions replaced","source_url":"https://open.alberta.ca/dataset/842becf6-dc0c-4cc7-8b29-e3f383133ddc/resource/b6b28b89-f0db-49c5-b3bd-6046943af610/download/epa-alberta-tier-1-soil-groundwater-remediation-guidelines-2024-06.pdf","source_sha256":"4120380f36f55c677bac749c5e7150f233f781497bec9cd56a56f1f239bdae3f","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1, Alberta Tier 1 Soil Remediation Guidelines, coarse soil, Industrial","page":34,"quote":null}},{"id":"5876328607b3f45c","parameter":"Cyanide - free","value":"5.2","value_num":5.2,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:cyanide - free","place":["CA-AB"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"ca_ab_eqg_surface_waters","title":"Environmental Quality Guidelines for Alberta Surface Waters (March 28, 2018) — Table 1, protection of freshwater aquatic life, long-term (chronic) and short-term (acute)","issuer":"Government of Alberta, Alberta Environment and Parks","edition":"March 28, 2018 (Alberta Environment and Parks)","source_url":"https://open.alberta.ca/dataset/5298aadb-f5cc-4160-8620-ad139bb985d8/resource/38ed9bb1-233f-4e28-b344-808670b20dae/download/environmentalqualitysurfacewaters-mar28-2018.pdf","source_sha256":"8d128a9d2efe359b62626cb0055d2ab7026328ef88a8afa3b5ed197c0b788d54","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1 (freshwater aquatic life) · Ions & general · USEPA 1985","page":31,"quote":null}},{"id":"5c45f143e768c81d","parameter":"Cyanide - free","value":"22","value_num":22,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:cyanide - free","place":["CA-AB"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"ca_ab_eqg_surface_waters","title":"Environmental Quality Guidelines for Alberta Surface Waters (March 28, 2018) — Table 1, protection of freshwater aquatic life, long-term (chronic) and short-term (acute)","issuer":"Government of Alberta, Alberta Environment and Parks","edition":"March 28, 2018 (Alberta Environment and Parks)","source_url":"https://open.alberta.ca/dataset/5298aadb-f5cc-4160-8620-ad139bb985d8/resource/38ed9bb1-233f-4e28-b344-808670b20dae/download/environmentalqualitysurfacewaters-mar28-2018.pdf","source_sha256":"8d128a9d2efe359b62626cb0055d2ab7026328ef88a8afa3b5ed197c0b788d54","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1 (freshwater aquatic life) · Ions & general · USEPA 1985","page":31,"quote":null}},{"id":"1d079353a9c4f74b","parameter":"Cyanide","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Agricultural"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"agricole"}},{"id":"bfa98cb63b800502","parameter":"Cyanide","value":"0.9","value_num":0.9,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Residential/ parkland"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel_parc"}},{"id":"57592070161f558c","parameter":"Cyanide","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Commercial"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"commercial"}},{"id":"224baec53f05c87e","parameter":"Cyanide","value":"8","value_num":8,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Industrial"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"47d36f835be5e5e7","parameter":"Cyanide","value":"5 (as free CN)","value_num":5,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["receiving_water is freshwater","long-term exposure: CCME's long-term guideline"],"cite":{"instrument":"ca_ccme_wqg_aquatic","title":"CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life — freshwater and marine, short and long term","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table (as served 2026-09-24; each guideline carries its own year)","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"note":"douce_long_terme: printed basis: as free CN","table":"eau_vie_aquatique","column":"douce_long_terme"}},{"id":"2ac5b9f6b941af25","parameter":"Cyanide","value":"0.2","value_num":0.2,"unit":"mg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["drinking water (a guideline, not a regulation: each province and territory decides whether, and how, it binds there)"],"cite":{"instrument":"ca_hc_gcdwq","title":"Health Canada — Guidelines for Canadian Drinking Water Quality, Summary Tables 1-3 (microbiological, chemical and physical, radiological)","issuer":"Health Canada, with the Federal-Provincial-Territorial Committee on Drinking Water","edition":"page modified 2026-01-21 (dcterms.modified; issued 2014-10-22): Tables 1-3 as the browser pane rendered them on 2026-10-15","source_url":"https://www.canada.ca/en/health-canada/services/environmental-workplace-health/reports-publications/water-quality/guidelines-canadian-drinking-water-quality-summary-table.html","source_sha256":"9451ad8bfa566c0625ae4fcb362272cbb0e20040c548540f362488118c300b89","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 2, Chemical and Physical Parameters (Cyanide, published or reaffirmed 1979, 1991)","page":null,"quote":"I Cyanide (1979, 1991) 0.2 None"}},{"id":"eac6089cbc9bde5a","parameter":"Cyanide","value":"0.50 mg/L","value_num":0.5,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 1 — Column 2: maximum authorized monthly mean concentration","page":null,"quote":"2 Copper 0.10 mg/L 0.15 mg/L 0.20 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}},{"id":"11d08e88c1aee491","parameter":"Cyanide","value":"0.75 mg/L","value_num":0.75,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 1 — Column 3: maximum authorized concentration in a composite sample","page":null,"quote":"2 Copper 0.10 mg/L 0.15 mg/L 0.20 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}},{"id":"11e84a7604f66a68","parameter":"Cyanide","value":"1.00 mg/L","value_num":1,"unit":"mg/L","statistic":"instant","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 1 — Column 4: maximum authorized concentration in a grab sample","page":null,"quote":"2 Copper 0.10 mg/L 0.15 mg/L 0.20 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}},{"id":"3c5db50d94403aa5","parameter":"Cyanide","value":"0.50 mg/L","value_num":0.5,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 2 — Column 2: maximum authorized monthly mean concentration","page":null,"quote":"2 Copper 0.30 mg/L 0.45 mg/L 0.60 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}},{"id":"0db72a393ed9a3d2","parameter":"Cyanide","value":"0.75 mg/L","value_num":0.75,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 2 — Column 3: maximum authorized concentration in a composite sample","page":null,"quote":"2 Copper 0.30 mg/L 0.45 mg/L 0.60 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}},{"id":"3e8c9478b94497a8","parameter":"Cyanide","value":"1.00 mg/L","value_num":1,"unit":"mg/L","statistic":"instant","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:57-12-5","place":["CA"],"conditions":["cites is MDMER","route is 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))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 2 — Column 4: maximum authorized concentration in a grab sample","page":null,"quote":"2 Copper 0.30 mg/L 0.45 mg/L 0.60 mg/L 3 Cyanide 0.50 mg/L 0.75 mg/L 1.00 mg/L"}}],"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":"CA-AB"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"cyanide free\", 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":"CA-AB"},"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"}]}