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Document ID ca-on-dwqe-2025-12-18 Title Drinking Water Quality and Enforcement URL https://data.ontario.ca/dataset/drinking-water-quality-and-enforcement Jurisdiction /ca/on Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:17:16.631182+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (10)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#R001administrativeoperationalmandatoryQP Site Condition VerificationotherThe QP must ascertain that the site conditions are appropriate for use of the generic standards such that he/she can be comfortable with signing the certifications on the RSC.When signing certifications for a Record of Site Condition (RSC)high
#R002designoperationalmandatoryShallow Soils Table Selectiondrinking water, otherTables 6 and 7 are to be used in situations where there is less than 2 m of overburden above bedrock.Sites with < 2 m overburden above bedrockhigh
#R003designoperationalmandatoryWater Body Proximity Table Selectionaquatic lifeTables 8 and 9 are to be used where all or part of a property lies within 30 m of a surface water body.Site within 30 m of a surface water bodyhigh
#R004monitoringoperationalmandatoryMethyl Naphthalene Compliance CalculationotherFor all tables, the methyl naphthalene soil standard is applicable to both 1-methyl naphthalene and 2 –methyl naphthalene, with the provision that if both are detected the sum of the two concentrations cannot exceed the standard.Detection of both 1-methyl naphthalene and 2-methyl naphthalenehigh
#R005operationaloperationalguidanceBoron Parameter Selectionagricultural water, otherThe HWS boron can be used by itself for all surface soils, as plants are the most sensitive receptor for boron. For subsurface soils the total boron standard can be used by itself, since plant protection for soils below the root zone is not a significant concern.Selection between Hot Water Soluble (HWS) or Total Boron standardshigh
#R006monitoringoperationalmandatoryMethyl Mercury Monitoring TriggerotherAnalysis for methyl mercury only applies when mercury (total) standard is exceededTotal mercury standard exceededhigh
#R007monitoringunknownguidanceAquatic Protection Value Estimateaquatic lifeIn such cases, the QP may need to consider whether a site-specific estimate of hardness and pH resulting from mixing of groundwater and surface water is needed to estimate an appropriate aquatic protection value for this site.Surface water total hardness < 70mg/L or pH < 6.7high
#R008monitoringreportingguidanceBTEX Analytical Result OptionotherF1 fraction does not include BTEX; however, the proponent has the choice as to whether or not to subtract BTEX from the analytical result.Analysis of Petroleum Hydrocarbons F1 fractionhigh
#R009operationaloperationalguidanceTable 6/7 QP Discretiondrinking water, otherThey can also be used in situations where the QP is not satisfied that Tables 2 and 3 are suitable due to shallow depth to groundwater.QP dissatisfaction with Table 2/3 suitability for shallow groundwaterhigh
#R010operationaloperationalrecommendedQP Site Factor Assessment RecommendationotherThe QP should consider these types of factors in assessing the appropriateness of the use of the generic standards.When assessing the validity of generic standards for a given site based on conditions like source volume or preferential pathwayshigh

P Quantitative Requirements (0)

No quantitative requirements.

D Definitions (33)

Req ID Category Name Context Confidence
#D001NVThe abbreviation "NV" means "no value".high
#D002NAThe abbreviation "NA" means "not applicable".high
#D003PIBSPublic Information Banking Systemhigh
#D004PGMISProvincial Groundwater Monitoring Information Systemhigh
#D005DWSPDrinking Water Surveillance Programhigh
#D006QPQualified Personhigh
#D007HWShot water extracthigh
#D008RSCrecord of site conditionhigh
#D009focaverage Organic Carbon contenthigh
#D010CaCO3Calcium carbonatehigh
#D011pHpotential of Hydrogenhigh
#D012Chromium VIHexavalent chromiumhigh
#D013CN-Cyanidehigh
#D014DDDDichlorodiphenyldichloroethanehigh
#D015DDEDichlorodiphenyldichloroethylenehigh
#D016DDTDichlorodiphenyltrichloroethanehigh
#D017TEQDioxin/Furanhigh
#D018MTBEMethyl tert-Butyl Etherhigh
#D019BTEXbenzene, toluene, ethylbenzene, and xyleneshigh
#D020XV.115.1high
#D021XV15high
#D022mmetreshigh
#D023µg ⁄ gmicrograms per gramhigh
#D024µg ⁄ Lmicrograms per litrehigh
#D025m3metres cubedhigh
#D026i.e.that ishigh
#D027mg/Lmilligrams per litrehigh
#D028e.g.for examplehigh
#D029mS ⁄ cmmilli-Siemens per centimetrehigh
#D030F1 fractionF1 fraction does not include BTEX; however, the proponent has the choice as to whether or not to subtract BTEX from the analytical result.high
#D031Full Depth Background Site Condition Standardsbackground values derived from the Ontario Typical Range values for the land uses indicated and are considered representative of upper limits of typical province-wide background concentrations in soils that are not contaminated by point sources.high
#D032Methyl naphthalene soil standardapplicable to both 1-methyl naphthalene and 2 –methyl naphthalene, with the provision that if both are detected the sum of the two concentrations cannot exceed the standard.high
#D033Total Boronmixed strong acid digesthigh