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        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>161250</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>26341</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Kimberly Miller</PersonNm>
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        <ReportableCompFromOrgAmt>140132</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>39026</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Scott Berquist</PersonNm>
        <TitleTxt>Former Upper School Principal</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>107250</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>2925</OtherCompensationAmt>
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      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
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      <ContractorCompensationGrp>
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          <BusinessName>
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          <USAddress>
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      <ContractorCompensationGrp>
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          <USAddress>
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            <StateAbbreviationCd>VA</StateAbbreviationCd>
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      <ProgramServiceRevenueGrp>
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        <RelatedOrExemptFuncIncomeAmt>684880</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>15158688</TotalProgramServiceRevenueAmt>
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        <TotalRevenueColumnAmt>412891</TotalRevenueColumnAmt>
        <ExclusionAmt>412891</ExclusionAmt>
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      <GrossRentsGrp>
        <RealAmt>-50</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
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      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>75058</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>75174</SecuritiesAmt>
        <OtherAmt>269</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-116</SecuritiesAmt>
        <OtherAmt>-269</OtherAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-385</TotalRevenueColumnAmt>
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        <TotalRevenueColumnAmt>598599</TotalRevenueColumnAmt>
        <ExclusionAmt>598599</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>Miscellaneous Income</Desc>
        <BusinessCd>611600</BusinessCd>
        <TotalRevenueColumnAmt>26821</TotalRevenueColumnAmt>
        <ExclusionAmt>26821</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>26821</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
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        <RelatedOrExemptFuncIncomeAmt>15158688</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>1825908</TotalAmt>
        <ProgramServicesAmt>1825908</ProgramServicesAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>5283305</ProgramServicesAmt>
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      <PensionPlanContributionsGrp>
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        <ProgramServicesAmt>130778</ProgramServicesAmt>
        <ManagementAndGeneralAmt>30695</ManagementAndGeneralAmt>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>800561</TotalAmt>
        <ProgramServicesAmt>648054</ProgramServicesAmt>
        <ManagementAndGeneralAmt>152107</ManagementAndGeneralAmt>
        <FundraisingAmt>400</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>489483</ProgramServicesAmt>
        <ManagementAndGeneralAmt>114888</ManagementAndGeneralAmt>
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      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
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        <ProgramServicesAmt>3983</ProgramServicesAmt>
        <ManagementAndGeneralAmt>935</ManagementAndGeneralAmt>
        <FundraisingAmt>2</FundraisingAmt>
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      <FeesForServicesAccountingGrp>
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        <ProgramServicesAmt>67330</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15803</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>4112</ProgramServicesAmt>
        <ManagementAndGeneralAmt>23298</ManagementAndGeneralAmt>
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      <OfficeExpensesGrp>
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        <ProgramServicesAmt>76568</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5855</ManagementAndGeneralAmt>
        <FundraisingAmt>41</FundraisingAmt>
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      <InformationTechnologyGrp>
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        <ProgramServicesAmt>54713</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4118</ManagementAndGeneralAmt>
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      <OccupancyGrp>
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        <ProgramServicesAmt>593334</ProgramServicesAmt>
        <ManagementAndGeneralAmt>44659</ManagementAndGeneralAmt>
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      <InterestGrp>
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        <ProgramServicesAmt>260353</ProgramServicesAmt>
        <ManagementAndGeneralAmt>19596</ManagementAndGeneralAmt>
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      <DepreciationDepletionGrp>
        <TotalAmt>1227455</TotalAmt>
        <ProgramServicesAmt>1141533</ProgramServicesAmt>
        <ManagementAndGeneralAmt>85922</ManagementAndGeneralAmt>
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      <InsuranceGrp>
        <TotalAmt>74951</TotalAmt>
        <ProgramServicesAmt>69704</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5247</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <TotalAmt>1131821</TotalAmt>
        <ProgramServicesAmt>1131821</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>Education Service Progr</Desc>
        <TotalAmt>270340</TotalAmt>
        <ProgramServicesAmt>270340</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>Curriculum and Classroo</Desc>
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        <ProgramServicesAmt>241550</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
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        <TotalAmt>124664</TotalAmt>
        <ProgramServicesAmt>100916</ProgramServicesAmt>
        <ManagementAndGeneralAmt>23686</ManagementAndGeneralAmt>
        <FundraisingAmt>62</FundraisingAmt>
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      <AllOtherExpensesGrp>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>13294752</ProgramServicesAmt>
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        <EOYAmt>12283</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>205446</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>33537102</LandBldgEquipCostOrOtherBssAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>16144296</EOYAmt>
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      <InvestmentsPubTradedSecGrp>
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        <EOYAmt>1984402</EOYAmt>
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        <EOYAmt>28443913</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>174523</EOYAmt>
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      <DeferredRevenueGrp>
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        <EOYAmt>3660606</EOYAmt>
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      <TaxExemptBondLiabilitiesGrp>
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        <EOYAmt>7653649</EOYAmt>
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      <MortgNotesPyblScrdInvstPropGrp>
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        <EOYAmt>1685912</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>13174690</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>13437737</BOYAmt>
        <EOYAmt>14781601</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>470722</BOYAmt>
        <EOYAmt>487622</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>13908459</BOYAmt>
        <EOYAmt>15269223</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>27830440</BOYAmt>
        <EOYAmt>28443913</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>1360764</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <SchoolInd>X</SchoolInd>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>4504566</OtherCostOrOtherBasisAmt>
        <BookValueAmt>4504566</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>22988966</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>13537078</DepreciationAmt>
        <BookValueAmt>9451888</BookValueAmt>
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      <LeaseholdImprovementsGrp>
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        <DepreciationAmt>1619131</DepreciationAmt>
        <BookValueAmt>954324</BookValueAmt>
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      <EquipmentGrp>
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        <DepreciationAmt>2236597</DepreciationAmt>
        <BookValueAmt>1040288</BookValueAmt>
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      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>193230</OtherCostOrOtherBasisAmt>
        <BookValueAmt>193230</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>16144296</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>14830178</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>14830178</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>1825908</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>1825908</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>16656086</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>13469414</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>13469414</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>1825908</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>1825908</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>15295322</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>The School evaluates uncertainty in income tax positions based on a more-likely-than-not recognition standard. If that threshold is met, the tax position is then measured at the largest amount that is greater than 50% likely of being realized upon ultimate settlement. As of June 30, 2024, there are no accruals for uncertain tax positions. If applicable, the School records interest and penalties as a component of income tax expense. Tax years from 2021 through the current year remain open for examination by tax authorities.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 4b - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial Aid and Assistance 1,825,908.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 4b - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial Aid and Assistance 1,825,908.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleE documentId="RetDoc1040400001">
      <NondiscriminatoryPolicyStmtInd>1</NondiscriminatoryPolicyStmtInd>
      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>1</MaintainCpyOfAllSolInd>
      <DiscriminateRaceStdntsRghtsInd>0</DiscriminateRaceStdntsRghtsInd>
      <DiscriminateRaceAdmissPlcyInd>0</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>0</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>0</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>0</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>0</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>0</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>0</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>0</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>0</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>1</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule E, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization has publicized its racially nondiscriminatory policy on its website and in its admissions materials.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleE>
    <IRS990ScheduleG documentId="RetDoc1041300001">
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        <Event1Nm>Auction</Event1Nm>
        <GrossReceiptsEvent1Amt>577800</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>577800</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>41494</OtherDirectExpensesEvent1Amt>
        <Event2Nm>Golf Classic</Event2Nm>
        <GrossReceiptsEvent2Amt>99001</GrossReceiptsEvent2Amt>
        <GrossRevenueEvent2Amt>99001</GrossRevenueEvent2Amt>
        <OtherDirectExpensesEvent2Amt>24667</OtherDirectExpensesEvent2Amt>
        <OtherEventsTotalCnt>8</OtherEventsTotalCnt>
        <GrossReceiptsOtherEventsAmt>39096</GrossReceiptsOtherEventsAmt>
        <GrossRevenueOtherEventsAmt>39096</GrossRevenueOtherEventsAmt>
        <OthDirectExpnssOtherEventsAmt>51137</OthDirectExpnssOtherEventsAmt>
        <GrossReceiptsTotalAmt>715897</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>715897</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>117298</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>117298</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>598599</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Discounts on tuition and scholarships.</GrantTypeTxt>
        <RecipientCnt>283</RecipientCnt>
        <CashGrantAmt>1825908</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>All tuition assistance is tracked in the tuition accounting records. No other form of assistance or grant is given.</ExplanationTxt>
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      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>1</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>David Vanderpoel</PersonNm>
        <TitleTxt>Head of School, CEO (JUL)</TitleTxt>
        <BaseCompensationFilingOrgAmt>226501</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>260000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>5425</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>5798</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>497724</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Matthew Thomas</PersonNm>
        <TitleTxt>Head of School, CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>131923</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>50000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>85126</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11840</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>278889</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Carolyn Rector</PersonNm>
        <TitleTxt>Asst Head of School, CFO</TitleTxt>
        <BaseCompensationFilingOrgAmt>141250</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>20000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>4238</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22103</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>187591</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kimberly Miller</PersonNm>
        <TitleTxt>Asst Head of School, Academics</TitleTxt>
        <BaseCompensationFilingOrgAmt>124167</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>10965</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>3750</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>35276</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>179158</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 7</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization provided bonus compensation to its officers and employees during the year.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleK documentId="RetDoc1053100001">
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>Fairfax County Economic Development Authority</BusinessNameLine1Txt>
        </IssuerName>
        <CUSIPNum>000000000</CUSIPNum>
        <BondIssuedDt>2021-03-31</BondIssuedDt>
        <IssuePriceAmt>8827798</IssuePriceAmt>
        <PurposeDesc>Refund Prior Issue - 12/29/2010</PurposeDesc>
        <DefeasedInd>0</DefeasedInd>
        <OnBehalfOfIssuerInd>0</OnBehalfOfIssuerInd>
        <PoolFinancingInd>0</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>55617</RetiredAmt>
        <TotalProceedsAmt>8827798</TotalProceedsAmt>
        <OtherSpentProceedsAmt>8827798</OtherSpentProceedsAmt>
        <SubstantialCompletionYr>2009</SubstantialCompletionYr>
        <RefundingTaxExemptBondsInd>1</RefundingTaxExemptBondsInd>
        <RefundingTaxableBondsInd>0</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>0</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>1</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>0</NoRebateDueInd>
        <VariableRateIssueInd>0</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>0</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>0</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
    </IRS990ScheduleK>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>70261</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>Market Value</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Column (b):</FormAndLineReferenceDesc>
        <ExplanationTxt>The number in column (b) represents the number of contributions received.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The finance committee reviews the Form 990 prior to filing and presents it to the board. Copies are made available to all board members prior to filing the Form 990 with the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Trustees considers conflicts of interest on an ongoing basis. All board members, officers, and key employees disclose to the board any possible conflict of interest at the earliest practicable time.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The Committee on Trustees is responsible for setting Head of School compensation by providing an annual performance review and establishing annual goals for the Head of School's performance. As part of the performance review, the committee interviews key employees for feedback on the Head of School's performance during the previous year. The committee also reviews salary surveys from the National Association of Independent Schools (NAIS) and Independent School Management (ISM). The committee brings its recommendation to the full board for approval. The Head of School is responsible for setting key employee compensation and does so by reviewing salary surveys from NAIS, ISM and the National Business Officer's Association (NBOA).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 and the audited financial statements are available on the ECFA website (www.efca.org). The organization's Conflict of Interest Policy is available to the public upon written request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>