<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProcedures" xlink:href="sjw-20150930.xsd#BalancingAndMemorandumAccountRecoveryProcedures" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProceduresDetails" xlink:href="sjw-20150930.xsd#BalancingAndMemorandumAccountRecoveryProceduresDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProceduresTables" xlink:href="sjw-20150930.xsd#BalancingAndMemorandumAccountRecoveryProceduresTables" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/CondensedConsolidatedBalanceSheets" xlink:href="sjw-20150930.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:href="sjw-20150930.xsd#CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="sjw-20150930.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:href="sjw-20150930.xsd#CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/DefinedBenefitPlan" xlink:href="sjw-20150930.xsd#DefinedBenefitPlan" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/DefinedBenfitPlanDetails" xlink:href="sjw-20150930.xsd#DefinedBenfitPlanDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/DefinedBenfitPlanTables" xlink:href="sjw-20150930.xsd#DefinedBenfitPlanTables" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/DocumentAndEntityInformationDocument" xlink:href="sjw-20150930.xsd#DocumentAndEntityInformationDocument" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/EquityPlans" xlink:href="sjw-20150930.xsd#EquityPlans" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/EquityPlansDetails" xlink:href="sjw-20150930.xsd#EquityPlansDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/EquityPlansTables" xlink:href="sjw-20150930.xsd#EquityPlansTables" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/FairValueMeasurement" xlink:href="sjw-20150930.xsd#FairValueMeasurement" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/FairValueMeasurementDetails" xlink:href="sjw-20150930.xsd#FairValueMeasurementDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/General" xlink:href="sjw-20150930.xsd#General" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/GeneralAdditionalInformationDetails" xlink:href="sjw-20150930.xsd#GeneralAdditionalInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/GeneralDepreciationDetails" xlink:href="sjw-20150930.xsd#GeneralDepreciationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/GeneralEarningsPerShareDetails" xlink:href="sjw-20150930.xsd#GeneralEarningsPerShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/GeneralNewAccountingPronouncementDetails" xlink:href="sjw-20150930.xsd#GeneralNewAccountingPronouncementDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/GeneralPolicies" xlink:href="sjw-20150930.xsd#GeneralPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/LegalProceedings" xlink:href="sjw-20150930.xsd#LegalProceedings" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/LongTermLiabilitiesAndBankBorrowings" xlink:href="sjw-20150930.xsd#LongTermLiabilitiesAndBankBorrowings" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/LongTermLiabilitiesAndBankBorrowingsDetails" xlink:href="sjw-20150930.xsd#LongTermLiabilitiesAndBankBorrowingsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RealEstateInvestments" xlink:href="sjw-20150930.xsd#RealEstateInvestments" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RealEstateInvestmentsDetails" xlink:href="sjw-20150930.xsd#RealEstateInvestmentsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RealEstateInvestmentsTables" xlink:href="sjw-20150930.xsd#RealEstateInvestmentsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilities" xlink:href="sjw-20150930.xsd#RegulatoryAssetsAndLiabilities" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:href="sjw-20150930.xsd#RegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:href="sjw-20150930.xsd#RegulatoryAssetsAndLiabilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RegulatoryRateFilings" xlink:href="sjw-20150930.xsd#RegulatoryRateFilings" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/RegulatoryRateFilingsDetails" xlink:href="sjw-20150930.xsd#RegulatoryRateFilingsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/SaleOfCaliforniaWaterService" xlink:href="sjw-20150930.xsd#SaleOfCaliforniaWaterService" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/SaleOfCaliforniaWaterServiceDetails" xlink:href="sjw-20150930.xsd#SaleOfCaliforniaWaterServiceDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReporting" xlink:href="sjw-20150930.xsd#SegmentAndNonregulatedBusinessReporting" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReportingDetails" xlink:href="sjw-20150930.xsd#SegmentAndNonregulatedBusinessReportingDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReportingTables" xlink:href="sjw-20150930.xsd#SegmentAndNonregulatedBusinessReportingTables" xlink:type="simple" />
  <calculationLink xlink:role="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProcedures" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProceduresDetails" xlink:type="extended">
    <loc xlink:href="sjw-20150930.xsd#sjw_BalancingandMemorandumAccountRevenueIncreaseReductionNet" xlink:label="loc_sjw_BalancingandMemorandumAccountRevenueIncreaseReductionNet_32ad1356-6089-11e4-b035-22000a1e8102" xlink:type="locator" />
    <loc xlink:href="sjw-20150930.xsd#sjw_MemorandumAccountRevenueIncreaseReduction" xlink:label="loc_sjw_MemorandumAccountRevenueIncreaseReduction_ebba6138-6088-11e4-b035-22000a1e8102" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sjw_BalancingandMemorandumAccountRevenueIncreaseReductionNet_32ad1356-6089-11e4-b035-22000a1e8102" xlink:to="loc_sjw_MemorandumAccountRevenueIncreaseReduction_ebba6138-6088-11e4-b035-22000a1e8102" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_BalancingAccountRevenueIncreaseReduction" xlink:label="loc_sjw_BalancingAccountRevenueIncreaseReduction_07e3cb7e-6089-11e4-b035-22000a1e8102" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sjw_BalancingandMemorandumAccountRevenueIncreaseReductionNet_32ad1356-6089-11e4-b035-22000a1e8102" xlink:to="loc_sjw_BalancingAccountRevenueIncreaseReduction_07e3cb7e-6089-11e4-b035-22000a1e8102" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_BalancingandMemorandumAccountRefundsCollections" xlink:label="loc_sjw_BalancingandMemorandumAccountRefundsCollections_a0c58b2a-6089-11e4-b035-22000a1e8102" xlink:type="locator" />
    <loc xlink:href="sjw-20150930.xsd#sjw_MemorandumAccountRefundsCollections" xlink:label="loc_sjw_MemorandumAccountRefundsCollections_724bdbc8-6089-11e4-b035-22000a1e8102" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sjw_BalancingandMemorandumAccountRefundsCollections_a0c58b2a-6089-11e4-b035-22000a1e8102" xlink:to="loc_sjw_MemorandumAccountRefundsCollections_724bdbc8-6089-11e4-b035-22000a1e8102" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_BalancingAccountRefundsCollections" xlink:label="loc_sjw_BalancingAccountRefundsCollections_860a63b4-6089-11e4-b035-22000a1e8102" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sjw_BalancingandMemorandumAccountRefundsCollections_a0c58b2a-6089-11e4-b035-22000a1e8102" xlink:to="loc_sjw_BalancingAccountRefundsCollections_860a63b4-6089-11e4-b035-22000a1e8102" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/BalancingAndMemorandumAccountRecoveryProceduresTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_e8670a3c-73dc-a0c5-5905-86a5818e5871" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_e8670a3c-73dc-a0c5-5905-86a5818e5871" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_e8670a3c-73dc-a0c5-5905-86a5818e5871" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentLand" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentLand_c134dd80-20d9-224b-4231-eec79a83f0bb" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentLand_c134dd80-20d9-224b-4231-eec79a83f0bb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_c593c9d5-7b97-2738-5b1c-456c50a224c6" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_c593c9d5-7b97-2738-5b1c-456c50a224c6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_24c5d482-aab5-80de-8319-44f4df8658f6" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_24c5d482-aab5-80de-8319-44f4df8658f6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_42b85d66-347c-1d04-e532-6585df9e0ef3" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_c4121e9a-097d-7136-dbac-b93469330286" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_42b85d66-347c-1d04-e532-6585df9e0ef3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_58359e38-40de-a7b8-d4f6-582d0655e9b8" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_e8670a3c-73dc-a0c5-5905-86a5818e5871" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_58359e38-40de-a7b8-d4f6-582d0655e9b8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAtCost" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_5499fe8f-bf4e-e772-1aec-9b0ac3a4a022" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_5499fe8f-bf4e-e772-1aec-9b0ac3a4a022" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_999960f8-6702-f7e9-88df-fcb8021751b2" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_999960f8-6702-f7e9-88df-fcb8021751b2" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_dc301a2a-78b3-2f7c-72b2-6d5ec18f9327" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_dc301a2a-78b3-2f7c-72b2-6d5ec18f9327" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_b55f8997-2ee7-02b3-cb5b-06e177e6e17d" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_IncomeTaxesReceivable_b55f8997-2ee7-02b3-cb5b-06e177e6e17d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NontradeReceivablesCurrent" xlink:label="loc_us-gaap_NontradeReceivablesCurrent_fdeda190-bee2-6a49-6552-019b74905886" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_NontradeReceivablesCurrent_fdeda190-bee2-6a49-6552-019b74905886" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ReceivablesLongTermContractsOrPrograms" xlink:label="loc_us-gaap_ReceivablesLongTermContractsOrPrograms_26453d5c-d71b-8e6f-7fc0-07b115452ad8" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_ReceivablesLongTermContractsOrPrograms_26453d5c-d71b-8e6f-7fc0-07b115452ad8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_ddcac496-60ce-cc38-3346-282b52dcdc6b" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_ddcac496-60ce-cc38-3346-282b52dcdc6b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_14f3514d-b887-3e26-e467-f2a9d9f3f19e" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_OtherAssetsCurrent_14f3514d-b887-3e26-e467-f2a9d9f3f19e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsNoncurrent" xlink:label="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent_0ff2a91f-003c-905d-a66d-1e6b24fef6b5" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent_0ff2a91f-003c-905d-a66d-1e6b24fef6b5" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_UnamortizedDebtIssuanceExpenseAndBrokerFees" xlink:label="loc_sjw_UnamortizedDebtIssuanceExpenseAndBrokerFees_c5261b21-43c3-654e-d2fd-a37bb4a1cb9b" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:to="loc_sjw_UnamortizedDebtIssuanceExpenseAndBrokerFees_c5261b21-43c3-654e-d2fd-a37bb4a1cb9b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_4599c23a-11f0-4277-ea32-9886d26f8792" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_4599c23a-11f0-4277-ea32-9886d26f8792" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_5810c1e5-ee98-6b1c-adef-bf6c1c9d8cdf" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_d0d0d3d2-a57d-313f-aa09-3ce09e212c98" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_5810c1e5-ee98-6b1c-adef-bf6c1c9d8cdf" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_43aaac76-959d-69e2-234b-7c7a89d77345" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_43aaac76-959d-69e2-234b-7c7a89d77345" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CustomerAdvancesForConstruction" xlink:label="loc_us-gaap_CustomerAdvancesForConstruction_5df02c4b-46f1-5c3f-4dd1-871638e4cb4d" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_CustomerAdvancesForConstruction_5df02c4b-46f1-5c3f-4dd1-871638e4cb4d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ContributionsInAidOfConstruction" xlink:label="loc_us-gaap_ContributionsInAidOfConstruction_3a94a352-9af2-e0a4-e441-8e3ac23a0c6d" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_ContributionsInAidOfConstruction_3a94a352-9af2-e0a4-e441-8e3ac23a0c6d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_fd7ec8f3-ea42-3556-c2ff-1e0017d5624d" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_fd7ec8f3-ea42-3556-c2ff-1e0017d5624d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_e44de260-8133-065d-f412-51a598b01a15" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_e44de260-8133-065d-f412-51a598b01a15" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_f7fce5cd-2d53-a8b3-a485-6d0f3635b8fe" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_f7fce5cd-2d53-a8b3-a485-6d0f3635b8fe" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_a7bb915d-e645-20d7-7b2e-623731454f45" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_CommitmentsAndContingencies_a7bb915d-e645-20d7-7b2e-623731454f45" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquity" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquity_9fc0f05e-97ec-e362-5015-55d17f3dcc20" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquity_9fc0f05e-97ec-e362-5015-55d17f3dcc20" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquity_9fc0f05e-97ec-e362-5015-55d17f3dcc20" xlink:to="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_ffd09989-75a8-4713-beb0-21bebb3561d6" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_CommonStockValue_ffd09989-75a8-4713-beb0-21bebb3561d6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_3c55800a-0ae8-71c7-e1d1-5e4859c50246" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_3c55800a-0ae8-71c7-e1d1-5e4859c50246" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_440a13e9-e4dc-f397-4d0d-27daacd44483" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_440a13e9-e4dc-f397-4d0d-27daacd44483" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_4d60b95b-a2a9-55da-7eaa-2ca718a58484" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_4d60b95b-a2a9-55da-7eaa-2ca718a58484" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_89b83a57-ffbc-fc48-170d-f8b25d163e54" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquity_9fc0f05e-97ec-e362-5015-55d17f3dcc20" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_89b83a57-ffbc-fc48-170d-f8b25d163e54" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaap_LinesOfCreditCurrent_37f640e0-3fac-dd55-c295-d8d14cefc1bb" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_LinesOfCreditCurrent_37f640e0-3fac-dd55-c295-d8d14cefc1bb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_0601d697-1537-c3cb-caaf-11141ac92b39" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_LongTermDebtCurrent_0601d697-1537-c3cb-caaf-11141ac92b39" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_Accruedgroundwaterextractionchargespurchasedwaterandpower" xlink:label="loc_sjw_Accruedgroundwaterextractionchargespurchasedwaterandpower_89BEA097430092914BC895E65EA71A7F" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_sjw_Accruedgroundwaterextractionchargespurchasedwaterandpower_89BEA097430092914BC895E65EA71A7F" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_bd7b63fa-09ae-1100-16fe-5ac027208548" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_AccountsPayableCurrent_bd7b63fa-09ae-1100-16fe-5ac027208548" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_bb772f62-f5a6-bab7-e2c1-84f314d9b18f" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_InterestPayableCurrent_bb772f62-f5a6-bab7-e2c1-84f314d9b18f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_bc5586e8-703f-2f47-b779-2bd07fa1b4ba" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_bc5586e8-703f-2f47-b779-2bd07fa1b4ba" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_d69c5cc5-fc70-31a7-c2b1-924eb363b75b" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_d69c5cc5-fc70-31a7-c2b1-924eb363b75b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_80fb613f-3ffa-40b4-21a0-ecd4148b8f5c" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_80fb613f-3ffa-40b4-21a0-ecd4148b8f5c" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_76f611bf-6cac-2837-6d7c-3028d488fc3b" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_76f611bf-6cac-2837-6d7c-3028d488fc3b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_aa7a0bc5-86c6-13a8-3676-9960bad8007f" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_ShareBasedCompensation_aa7a0bc5-86c6-13a8-3676-9960bad8007f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_b7b4b1a7-b864-5660-8468-21c7409fee96" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_b7b4b1a7-b864-5660-8468-21c7409fee96" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_b9fb8522-752c-3209-8cca-60e64f420ad5" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_b9fb8522-752c-3209-8cca-60e64f420ad5" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower" xlink:label="loc_sjw_IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower_6453B61C946C3E7E7CEF9656A1838EB9" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_sjw_IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower_6453B61C946C3E7E7CEF9656A1838EB9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedTaxesPayable_b801da4e-dae6-4217-9883-9a09c8ffe712" xlink:type="locator" />
    <calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedTaxesPayable_b801da4e-dae6-4217-9883-9a09c8ffe712" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations" xlink:label="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_391b3311-37e0-bd23-7984-4221f6020294" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_391b3311-37e0-bd23-7984-4221f6020294" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_IncreaseDecreaseToRegulatoryAssetRelatedToBalancingAndMemorandumAccounts" xlink:label="loc_sjw_IncreaseDecreaseToRegulatoryAssetRelatedToBalancingAndMemorandumAccounts_15298800-c6be-a62d-1e7d-a37bb48de11a" xlink:type="locator" />
    <calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_sjw_IncreaseDecreaseToRegulatoryAssetRelatedToBalancingAndMemorandumAccounts_15298800-c6be-a62d-1e7d-a37bb48de11a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_b8c20b3a-3bcf-0736-e626-15ffaf302374" xlink:type="locator" />
    <calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_b8c20b3a-3bcf-0736-e626-15ffaf302374" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GainLossOnSaleOfProperties" xlink:label="loc_us-gaap_GainLossOnSaleOfProperties_4bcd027f-8a81-6088-1149-e067a9d0f05f" xlink:type="locator" />
    <calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_GainLossOnSaleOfProperties_4bcd027f-8a81-6088-1149-e067a9d0f05f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="locator" />
    <calculationArc order="13" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquireWaterSystems" xlink:label="loc_us-gaap_PaymentsToAcquireWaterSystems_52946eab-9557-64ee-e519-8d3eb07c5279" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsToAcquireWaterSystems_52946eab-9557-64ee-e519-8d3eb07c5279" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction" xlink:label="loc_sjw_PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction_1d50eb3b-bbc3-5452-c13b-a37bb47993fe" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_sjw_PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction_1d50eb3b-bbc3-5452-c13b-a37bb47993fe" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquireRealEstate" xlink:label="loc_us-gaap_PaymentsToAcquireRealEstate_0ee0670e-d00c-38c9-31c0-d0ebf03bede2" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsToAcquireRealEstate_0ee0670e-d00c-38c9-31c0-d0ebf03bede2" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_PaymentsToAcquireBusinessesAssetsAndWaterRights" xlink:label="loc_sjw_PaymentsToAcquireBusinessesAssetsAndWaterRights_0e0f9b60-cb58-b438-cff7-a37bb4a1ca58" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_sjw_PaymentsToAcquireBusinessesAssetsAndWaterRights_0e0f9b60-cb58-b438-cff7-a37bb4a1ca58" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForProceedsFromRemovalCosts" xlink:label="loc_us-gaap_PaymentsForProceedsFromRemovalCosts_f4bd2997-c107-b716-f87c-a0d565e18019" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsForProceedsFromRemovalCosts_f4bd2997-c107-b716-f87c-a0d565e18019" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyHeldForSale" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyHeldForSale_a22d71af-0bdb-1326-dd89-4df01b2ea183" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyHeldForSale_a22d71af-0bdb-1326-dd89-4df01b2ea183" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity_147612bd-5726-c096-b075-648d912af93b" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity_147612bd-5726-c096-b075-648d912af93b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_45b97048-e301-0f1a-3463-4d9851d739ca" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_45b97048-e301-0f1a-3463-4d9851d739ca" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_a3cc5f0d-b161-eb8f-cc4a-2faebb7fd65f" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_a3cc5f0d-b161-eb8f-cc4a-2faebb7fd65f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_555855ee-67fc-e384-4c0f-c30d34ed47e5" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_555855ee-67fc-e384-4c0f-c30d34ed47e5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_ea6cf810-713a-97e3-79af-899fea44b5f3" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_ea6cf810-713a-97e3-79af-899fea44b5f3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_2d132af0-7f39-d203-f615-6551f8d2a6a7" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_2d132af0-7f39-d203-f615-6551f8d2a6a7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9e5484cd-8eeb-f906-2a82-95e418e07947" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9e5484cd-8eeb-f906-2a82-95e418e07947" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromContributionInAidOfConstruction" xlink:label="loc_us-gaap_ProceedsFromContributionInAidOfConstruction_30ed6444-24e0-d15a-a8f0-43314c5f4af7" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromContributionInAidOfConstruction_30ed6444-24e0-d15a-a8f0-43314c5f4af7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RepaymentsOfAdvancesForConstruction" xlink:label="loc_us-gaap_RepaymentsOfAdvancesForConstruction_14cecdd3-bf68-7485-7602-e4b13d60152c" xlink:type="locator" />
    <calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_RepaymentsOfAdvancesForConstruction_14cecdd3-bf68-7485-7602-e4b13d60152c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_77fb0894-8e98-8acd-7d89-0f52e26449e8" xlink:type="locator" />
    <calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_77fb0894-8e98-8acd-7d89-0f52e26449e8" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:to="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:to="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WaterProductionCosts" xlink:label="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:to="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CostOfPurchasedWater" xlink:label="loc_us-gaap_CostOfPurchasedWater_571672cc-445e-f0c3-92e8-ce6a2261a94d" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:to="loc_us-gaap_CostOfPurchasedWater_571672cc-445e-f0c3-92e8-ce6a2261a94d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpensePurchasedPower" xlink:label="loc_us-gaap_UtilitiesOperatingExpensePurchasedPower_14a98206-00f9-c487-4a71-bb1c38c1281e" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:to="loc_us-gaap_UtilitiesOperatingExpensePurchasedPower_14a98206-00f9-c487-4a71-bb1c38c1281e" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_GroundwaterExtractionCharges" xlink:label="loc_sjw_GroundwaterExtractionCharges_006427e2-28cc-1bac-87a2-a37bb45197de" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:to="loc_sjw_GroundwaterExtractionCharges_006427e2-28cc-1bac-87a2-a37bb45197de" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpenseOther" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseOther_3217df1e-b243-017d-c784-9d11d3ad063b" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WaterProductionCosts_410b044f-ed2e-ea47-84f2-dde78089e7f1" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseOther_3217df1e-b243-017d-c784-9d11d3ad063b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_7c6d12de-ee49-8fea-ba36-2f44ccb8dae4" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_7c6d12de-ee49-8fea-ba36-2f44ccb8dae4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenance" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenance_694ab0af-07eb-ee82-8726-3db277bf6f68" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenance_694ab0af-07eb-ee82-8726-3db277bf6f68" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_1b4493b2-e4d3-853b-76b5-9ff1fd6b924b" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseTaxes_1b4493b2-e4d3-853b-76b5-9ff1fd6b924b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_78eb0129-8ced-3355-217a-3e599dbe8d2f" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_1a5ab7f6-5834-5850-91dd-4926c0cab696" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_78eb0129-8ced-3355-217a-3e599dbe8d2f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RegulatedOperatingRevenue" xlink:label="loc_us-gaap_RegulatedOperatingRevenue_3f3aab1f-cc18-8172-a397-c021d4123d6a" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:to="loc_us-gaap_RegulatedOperatingRevenue_3f3aab1f-cc18-8172-a397-c021d4123d6a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_ed80f6f7-9d34-9c9b-5b6e-0410496d5d18" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_InterestExpenseDebt_ed80f6f7-9d34-9c9b-5b6e-0410496d5d18" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InterestExpenseOther" xlink:label="loc_us-gaap_InterestExpenseOther_5c41f2a7-77f2-e17a-ae1c-373a8ba0bbd4" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_InterestExpenseOther_5c41f2a7-77f2-e17a-ae1c-373a8ba0bbd4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentIncomeDividend" xlink:label="loc_us-gaap_InvestmentIncomeDividend_5de256e2-aece-1d85-dbd3-650ed8b7ede5" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_InvestmentIncomeDividend_5de256e2-aece-1d85-dbd3-650ed8b7ede5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_27b74f5e-bc16-8d0b-2d8b-f8fb77af5bf6" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_27b74f5e-bc16-8d0b-2d8b-f8fb77af5bf6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GainLossOnSaleOfProperties" xlink:label="loc_us-gaap_GainLossOnSaleOfProperties_4bcd027f-8a81-6088-1149-e067a9d0f05f" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cc64ed8f-51e0-4a92-b0c8-acb3ad13358b" xlink:to="loc_us-gaap_GainLossOnSaleOfProperties_4bcd027f-8a81-6088-1149-e067a9d0f05f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/DefinedBenefitPlan" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/DefinedBenfitPlanDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fee9d8ff-fd26-12ad-4d95-326cf1a683bb" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_b2ca541c-d86d-5c3b-6188-6379e9fcf913" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fee9d8ff-fd26-12ad-4d95-326cf1a683bb" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_b2ca541c-d86d-5c3b-6188-6379e9fcf913" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_47d033d5-90ba-de1b-01bf-8c87d27542f6" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fee9d8ff-fd26-12ad-4d95-326cf1a683bb" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_47d033d5-90ba-de1b-01bf-8c87d27542f6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefinedBenefitPlanOtherCosts" xlink:label="loc_us-gaap_DefinedBenefitPlanOtherCosts_a7043e3e-a1bc-7fae-653d-23747e9f6ff6" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fee9d8ff-fd26-12ad-4d95-326cf1a683bb" xlink:to="loc_us-gaap_DefinedBenefitPlanOtherCosts_a7043e3e-a1bc-7fae-653d-23747e9f6ff6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_c4a852c5-38c7-000b-98a8-4b76e12193cd" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fee9d8ff-fd26-12ad-4d95-326cf1a683bb" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_c4a852c5-38c7-000b-98a8-4b76e12193cd" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/DefinedBenfitPlanTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/DocumentAndEntityInformationDocument" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/EquityPlans" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/EquityPlansDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/EquityPlansTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/FairValueMeasurement" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/FairValueMeasurementDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/General" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/GeneralAdditionalInformationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/GeneralDepreciationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/GeneralEarningsPerShareDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/GeneralNewAccountingPronouncementDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/GeneralPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/LegalProceedings" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/LongTermLiabilitiesAndBankBorrowings" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/LongTermLiabilitiesAndBankBorrowingsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RealEstateInvestments" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RealEstateInvestmentsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAtCost" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Land" xlink:label="loc_us-gaap_Land_c85e7eda-0d43-8765-45fe-06d684354a94" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:to="loc_us-gaap_Land_c85e7eda-0d43-8765-45fe-06d684354a94" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentBuildingAndBuildingImprovements" xlink:label="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_a4476487-ad97-43f4-5e04-349dbf135b01" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:to="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_a4476487-ad97-43f4-5e04-349dbf135b01" xlink:type="arc" />
    <loc xlink:href="sjw-20150930.xsd#sjw_RealEstateInvestmentsIntangibles" xlink:label="loc_sjw_RealEstateInvestmentsIntangibles_bd199ca5-4b30-bbc1-5aa7-a37bb465f41f" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_224b845e-35c8-f827-1393-ac76d3bfbdb0" xlink:to="loc_sjw_RealEstateInvestmentsIntangibles_bd199ca5-4b30-bbc1-5aa7-a37bb465f41f" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/RealEstateInvestmentsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilities" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetRegulatoryAssets" xlink:label="loc_us-gaap_NetRegulatoryAssets_33894ec3-ab19-902b-b3ac-fb776192232e" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_b7e03647-8523-8c8a-4722-f8de1c1f15b1" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetRegulatoryAssets_33894ec3-ab19-902b-b3ac-fb776192232e" xlink:to="loc_us-gaap_RegulatoryAssets_b7e03647-8523-8c8a-4722-f8de1c1f15b1" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.sjwater.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RegulatoryRateFilings" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/RegulatoryRateFilingsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/SaleOfCaliforniaWaterService" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/SaleOfCaliforniaWaterServiceDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReporting" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReportingDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.sjwater.com/role/SegmentAndNonregulatedBusinessReportingTables" xlink:type="extended" />
</linkbase>
