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Document ID ca-gcdwqgtd-2015-04-15-2 Title Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Toluene, Ethylbenzene and the Xylenes URL https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-drinking-water-quality-toluene-ethylbenzene-xylenes/guidelines-canadian-drinking-water-quality-guideline-technical-document-toluene-ethylbenzene-xylenes-page-3.html Jurisdiction /ca Subdomain(s) Drinking water, Water treatment Language en Status completed Analyzed at 2026-03-18 13:52:43.130952+00:00 Relevance Defines MACs and treatment for toluene, ethylbenzene, and xylenes in water.
1 Qualitative 12 Quantitative 4 Definitions

Q Qualitative Requirements (1)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001treatmenthealthrecommendedResidential Point-of-Entry Systems for VOCsdrinking waterPoint-of-entry systems are preferred for the reduction of VOCs, because they provide treated water for bathing and laundry as well as for cooking and drinking.At the residential scale for the reduction of volatile organic chemicals (VOCs)high

P Quantitative Requirements (12)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001chemicalhealthguidelinetoluenedrinking waterMAC0.06 mg/LBased on this review, the drinking water guidelines are maximum acceptable concentrations of 0.06 mg/L (60 µg/L) for toluenehigh
#P002chemicalhealthguidelinetoluenedrinking waterMAC60 µg/LBased on this review, the drinking water guidelines are maximum acceptable concentrations of 0.06 mg/L (60 µg/L) for toluenehigh
#P003chemicalhealthguidelineethylbenzenedrinking waterMAC0.14 mg/L0.14 mg/L (140 µg/L) for ethylbenzenehigh
#P004chemicalhealthguidelineethylbenzenedrinking waterMAC140 µg/L0.14 mg/L (140 µg/L) for ethylbenzenehigh
#P005chemicalhealthguidelinexylenesdrinking waterMAC0.09 mg/L0.09 mg/L (90 µg/L) for xyleneshigh
#P006chemicalhealthguidelinexylenesdrinking waterMAC90 µg/L0.09 mg/L (90 µg/L) for xyleneshigh
#P007chemicalaestheticguidelinetoluenedrinking waterAO0.024 mg/LThe aesthetic objectives for these compounds are established at the level of the lowest reported odour thresholds, specifically 0.024 mg/L (24 µg/L) for tolueneLowest reported odour thresholdshigh
#P008chemicalaestheticguidelinetoluenedrinking waterAO24 µg/LThe aesthetic objectives for these compounds are established at the level of the lowest reported odour thresholds, specifically 0.024 mg/L (24 µg/L) for tolueneLowest reported odour thresholdshigh
#P009chemicalaestheticguidelineethylbenzenedrinking waterAO0.0016 mg/L0.0016 mg/L (1.6 µg/L) for ethylbenzeneLowest reported odour thresholdshigh
#P010chemicalaestheticguidelineethylbenzenedrinking waterAO1.6 µg/L0.0016 mg/L (1.6 µg/L) for ethylbenzeneLowest reported odour thresholdshigh
#P011chemicalaestheticguidelinexylenesdrinking waterAO0.02 mg/L0.02 mg/L (20 µg/L) for xylenesLowest reported odour thresholdshigh
#P012chemicalaestheticguidelinexylenesdrinking waterAO20 µg/L0.02 mg/L (20 µg/L) for xylenesLowest reported odour thresholdshigh

D Definitions (4)

Req ID Category Name Context Confidence
#D001VOCsvolatile organic chemicalshigh
#D002MACsmaximum acceptable concentrationshigh
#D003point-of-usefaucethigh
#D004point-of-entrylocation where water enters the homehigh