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  <xs:element id="sjw_A20142017WCMAMember" abstract="true" name="A20142017WCMAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_NumberOfPropertiesSold" abstract="false" name="NumberOfPropertiesSold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="sjw_NumberOfSubsidiaries" abstract="false" name="NumberOfSubsidiaries" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="sjw_PropertyTwoMember" abstract="true" name="PropertyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_PostretirementPensionsAndOtherMedicalBenefitsMember" abstract="true" name="PostretirementPensionsAndOtherMedicalBenefitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_BalancingandMemorandumRevenueAccountRefundsCollections" abstract="false" name="BalancingandMemorandumRevenueAccountRefundsCollections" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_BalancingandMemorandumCostRecoveryAccountNet" abstract="false" name="BalancingandMemorandumCostRecoveryAccountNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_BalancingandMemorandumCostRecoveryAccountRollForward" abstract="true" name="BalancingandMemorandumCostRecoveryAccountRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="sjw_GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAndOnSaleOfInvestmentRealEstate" abstract="false" name="GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAndOnSaleOfInvestmentRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_BalancingandMemorandumCostRecoveryAccountRefundsCollections" abstract="false" name="BalancingandMemorandumCostRecoveryAccountRefundsCollections" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_OtherRegulatoryAssetsMember" abstract="true" name="OtherRegulatoryAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_PropertiesSellingExpenses" abstract="false" name="PropertiesSellingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_MarketbasedRSUMember" abstract="true" name="MarketbasedRSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_WaterSupplyBalancingAccountsMember" abstract="true" name="WaterSupplyBalancingAccountsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_CostofcapitalMember" abstract="true" name="CostofcapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" abstract="true" name="WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="sjw_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuableUponExercise" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuableUponExercise" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="sjw_IncentivePlanMember" abstract="true" name="IncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_BalancingandMemorandumRevenueAccountIncreaseDecrease" abstract="false" name="BalancingandMemorandumRevenueAccountIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_ProceedsFromSaleOfPropertyHeldForSaleAndFromSaleOfRealEstateInvestments" abstract="false" name="ProceedsFromSaleOfPropertyHeldForSaleAndFromSaleOfRealEstateInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_MontereyWRAMMember" abstract="true" name="MontereyWRAMMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_RegulatoryBalancingandMemorandumAccountsReviewAuthorizedRevenueThresholdPercentage" abstract="false" name="RegulatoryBalancingandMemorandumAccountsReviewAuthorizedRevenueThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="sjw_IncreaseDecreaseToRegulatoryAssetAndLiabilitiesExcludingIncomeTaxTemporaryDifferencesNetAndPostretirementBenefits" abstract="false" name="IncreaseDecreaseToRegulatoryAssetAndLiabilitiesExcludingIncomeTaxTemporaryDifferencesNetAndPostretirementBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_AlternativeRevenueProgramsNet" abstract="false" name="AlternativeRevenueProgramsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_ReceiptsOfAdvancesAndContributionsInAidOfConstruction" abstract="false" name="ReceiptsOfAdvancesAndContributionsInAidOfConstruction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_BalancingandMemorandumRevenueAccountNet" abstract="false" name="BalancingandMemorandumRevenueAccountNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_WaterProductionCostsAbstract" abstract="true" name="WaterProductionCostsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="sjw_SanJoseWaterCompanyMember" abstract="true" name="SanJoseWaterCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower" abstract="false" name="IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_PensionBalancingAccountMember" abstract="true" name="PensionBalancingAccountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_BalancingAndMemorandumAccountNet" abstract="false" name="BalancingAndMemorandumAccountNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_PublicUtilitiesPropertyPlantAndEquipmentDepreciablePlantAndEquipment" abstract="false" name="PublicUtilitiesPropertyPlantAndEquipmentDepreciablePlantAndEquipment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="sjw_PRVMAMember" abstract="true" name="PRVMAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="sjw_BalancingandMemorandumAccountsMember" abstract="true" name="BalancingandMemorandumAccountsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
