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Document ID ca-hfnwtsu-2023-03-20 Title Hiawatha First Nation Water Treatment System Upgrades URL https://iaac-aeic.gc.ca/050/evaluations/proj/84268 Jurisdiction /ca Subdomain(s) Drinking Water, Groundwater Language en Status completed Analyzed at 2026-03-19 10:04:31.978931+00:00 Relevance Notice of determination and technical specs for water treatment infrastructure.

Q Qualitative Requirements (10)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001treatmenttreatmentmandatoryPoint-of-Entry (POE) Treatment Processesdrinking waterThe POE systems will utilize a combination of treatment processes involving sediment filters, air injection oxidation filters, granular activated carbon (GAC) filters, cartridge filters, and ion exchange resin to treat groundwater.high
#Q002treatmenttreatmentmandatoryPrimary Disinfection Methoddrinking waterPrimary disinfection will be achieved using ultraviolet irradiation.high
#Q003designoperationalmandatoryPOE Treatment System Enclosuredrinking waterThe POE treatment systems will be housed in an outdoor wooden enclosure and will be built on member-owned land.high
#Q004designoperationalmandatoryService Connection Infrastructuredrinking waterAll service connections will include a shut-off valve, a water meter, backflow preventor, and a pressure-reducing valve in an accessible location inside the residence.high
#Q005designoperationalmandatoryService Connection Pipe Penetrationsdrinking waterPipe penetrations for service connections will be located below the frost line and hydraulically sealed prior to commissioning.high
#Q006operationalhealthmandatoryExisting Well Decommissioningdrinking waterExisting wells will be decommissioned.Upon construction of drilled wells for residences affected by low yield and water quality issues.high
#Q007operationaloperationalmandatoryWell Pump Rate Limitsdrinking waterPump rates will be set so as to not exceed the maximum recharge rate of the well.high
#Q008designhealthmandatorySeptic Field Precaution and Mitigationwastewater, drinking waterSeptic fields on private property have also been identified and appropriate precaution/mitigation will be defined with direct communication with the utility owner prior to finalizing any design drawings.Prior to finalizing any design drawings.high
#Q009designoperationalmandatoryService Connection Pipe Specificationdrinking waterThese connections will consist of 25mm piping.Applicable to the 11 planned watermain service connections.high
#Q010monitoringoperationalmandatoryEnvironmental Mitigation and Monitoring ImplementationotherMitigation and monitoring measures taken into account for this determination included active and adaptive management measures that would be implemented for the protection of the local environment.Required following the Notice of Determination issued March 20, 2023.high

P Quantitative Requirements (4)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001designoperationalmandatoryService connection piping diameterdrinking waterrequirement25 mm11 watermain service connections will be installed to provide access to potable water to residents of the community. These connections will consist of 25mm piping.Applicable to new watermain service connections providing access to potable waterhigh
#P002designtreatmentmandatoryPoint-of-Entry (POE) systems countdrinking waterrequirement14 systemsThe proposed project aims to address critical health and safety risks... It involves the construction of 14 Point-of-Entry (POE) systems.Part of the water treatment system upgrades projecthigh
#P003designoperationalmandatoryWatermain service connections countdrinking waterrequirement11 connections11 watermain service connections will be installed to provide access to potable water to residents of the community.Connections consist of 25mm pipinghigh
#P004designoperationalmandatoryNew drilled wells countdrinking waterrequirement10 wellsIn addition, 10 groundwater wells will be drilled at residences affected by low yield and water quality issues with the existing wells.Existing wells will be decommissionedhigh

D Definitions (3)

Req ID Category Name Context Confidence
#D001POEPoint-of-Entryhigh
#D002GACgranular activated carbonhigh
#D003ProjectHiawatha First Nation Water Treatment System Upgradeshigh