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  <element id="wtr_FirstMortgageBondsEMember" name="FirstMortgageBondsEMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wtr_FirstMortgageBondsFMember" name="FirstMortgageBondsFMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wtr_DisposalGroupIncludingDiscontinuedOperationNumberOfBusinessUnits" name="DisposalGroupIncludingDiscontinuedOperationNumberOfBusinessUnits" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
</schema>
