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        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KATHERINE SHEA</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER STEWART</PersonNm>
        <TitleTxt>TRUSTEE (UNTIL 06/25)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN PEELER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAURYN SARGENT</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MOLLY RAUCH</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TABITHA BARTHOLOMEW</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTOPHER GINTER</PersonNm>
        <TitleTxt>DIR. OF FINANCE &amp; OPS</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>153707</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>43463</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JUSTIN MCLEAN</PersonNm>
        <TitleTxt>DIRECTOR OF PRIMARY SCHOOL</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>145480</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>7123</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOAN BUHRMAN</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>132617</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>17233</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KAVAN YEE</PersonNm>
        <TitleTxt>DIRECTOR OF MIDDLE SCHOOL</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>138201</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>19215</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KIMBERLY ROLLINS</PersonNm>
        <TitleTxt>DIRECTOR OF DEVELOPMENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>137208</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>8082</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MAUREEN MIESMER</PersonNm>
        <TitleTxt>ADMISSIONS DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>9144</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>1183835</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
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      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CORENIC CONSTRUCTION GROUP INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1220 12TH ST SE</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20003</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION SERVICES</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>JOFFE EMERGENCY SVCS</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 7125</AddressLine1Txt>
            <CityNm>SANTA MONICA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>90406</ZIPCd>
          </USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>RED COATS</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>4520 EAST WEST HWY SUITE 200</AddressLine1Txt>
            <CityNm>BETHESDA</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
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        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BLACKBAUD</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>65 FAIRCHILD ST</AddressLine1Txt>
            <CityNm>CHARLESTON</CityNm>
            <StateAbbreviationCd>SC</StateAbbreviationCd>
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          </USAddress>
        </ContractorAddress>
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        <CompensationAmt>123494</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>EDUCATIONAL TRAVEL ADVENTURES</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>4400 RT 9 SOUTH SUITE 1000</AddressLine1Txt>
            <CityNm>FREEHOLD</CityNm>
            <StateAbbreviationCd>NJ</StateAbbreviationCd>
            <ZIPCd>07728</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <FundraisingAmt>158536</FundraisingAmt>
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      <TotalContributionsAmt>896709</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
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        <BusinessCd>900099</BusinessCd>
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      <ProgramServiceRevenueGrp>
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        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>3007365</RelatedOrExemptFuncIncomeAmt>
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        <TotalRevenueColumnAmt>1044022</TotalRevenueColumnAmt>
        <ExclusionAmt>1044022</ExclusionAmt>
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      <GrossRentsGrp>
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      <NetRentalIncomeOrLossGrp>
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        <ExclusionAmt>79634</ExclusionAmt>
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      <GainOrLossGrp>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-20979</TotalRevenueColumnAmt>
        <ExclusionAmt>-20979</ExclusionAmt>
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      <NetIncmFromFundraisingEvtGrp>
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        <ExclusionAmt>-36567</ExclusionAmt>
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        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>50780</TotalRevenueColumnAmt>
        <ExclusionAmt>50780</ExclusionAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <FundraisingAmt>24237</FundraisingAmt>
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        <ManagementAndGeneralAmt>8989</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>220334</ManagementAndGeneralAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
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        <ManagementAndGeneralAmt>71099</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>124702</ProgramServicesAmt>
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        <ProgramServicesAmt>89163</ProgramServicesAmt>
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        <FundraisingAmt>2218</FundraisingAmt>
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        <ProgramServicesAmt>1248065</ProgramServicesAmt>
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      <ConferencesMeetingsGrp>
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        <ManagementAndGeneralAmt>374226</ManagementAndGeneralAmt>
        <FundraisingAmt>3213</FundraisingAmt>
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        <ProgramServicesAmt>1252708</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>284057</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>251990</ProgramServicesAmt>
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        <EOYAmt>41342153</EOYAmt>
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        <EOYAmt>628000</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>15622504</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>41342153</EOYAmt>
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      <NetUnrlzdGainsLossesInvstAmt>269029</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <SchoolInd>X</SchoolInd>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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        <InvestmentEarningsOrLossesAmt>333877</InvestmentEarningsOrLossesAmt>
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        <EndYearBalanceAmt>5608956</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>1143543</InvestmentEarningsOrLossesAmt>
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        <DepreciationAmt>13231008</DepreciationAmt>
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      <TotalBookValueLandBuildingsAmt>16667903</TotalBookValueLandBuildingsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>LOWELL SCHOOL USES THE ENDOWMENT FUNDS FOR A VARIETY OF EDUCATIONAL PURPOSES, INCLUDING FINANCIAL AID FOR STUDENTS, PROFESSIONAL DEVELOPMENT FOR TEACHERS AND ADMINISTRATORS, FACULTY SALARY, AND SUMMER CAMP ASSISTANCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT OF THE SCHOOL BELIEVES THAT IT HAS NO MATERIAL UNCERTAIN TAX POSITIONS AND, ACCORDINGLY, IT WILL NOT RECOGNIZE ANY LIABILITY FOR UNRECOGNIZED TAXES IN ITS FINANCIAL STATEMENTS. AS OF AUGUST 31, 2025, THERE ARE NO TAX EXAMINATIONS PENDING OR IN PROGRESS.</ExplanationTxt>
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    <IRS990ScheduleE documentId="RetDoc1040400001">
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      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>1</MaintainCpyOfAllSolInd>
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      <DiscriminateRaceEducPlcyInd>0</DiscriminateRaceEducPlcyInd>
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        <FormAndLineReferenceDesc>SCHEDULE E, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>LOWELL SCHOOL HAS A LONG-STANDING COMMITMENT TO THE PRINCIPLES OF DIVERSITY AND INCLUSIVITY. LOWELL SCHOOL DOES NOT DISCRIMINATE ON THE BASIS OF RACE, COLOR, GENDER, GENDER IDENTITY, GENDER EXPRESSION, NATIONAL ORIGIN, ETHNICITY, AGE, DISABILITY, RELIGION, SEXUAL ORIENTATION, MARITAL STATUS, SOCIO-ECONOMIC BACKGROUND, POLITICAL AFFILIATION, PERSONAL APPEARANCE, PAST OR PRESENT MILITARY SERVICE, OR ON ANY OTHER DISCRIMINATORY GROUND PROHIBITED BY FEDERAL, DISTRICT OF COLUMBIA, OR OTHER APPLICABLE LAW ("PROTECTED STATUS") IN ITS ADMISSIONS, SCHOLARSHIPS, SCHOOL PROGRAMS, AND ALL ASPECTS OF EMPLOYMENT.</ExplanationTxt>
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        <CashGrantAmt>2763860</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TUITION REMISSION</GrantTypeTxt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FINANCIAL AID - AUXILIARY SERVICES</GrantTypeTxt>
        <RecipientCnt>129</RecipientCnt>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL GRANTS THAT LOWELL SCHOOL AWARDS ARE IN THE FORM OF FINANCIAL GRANTS WHICH REPRESENT A REDUCTION IN THE TUITION AND FEES THAT ARE REQUIRED TO ATTEND LOWELL SCHOOL. THEREFORE, MONITORING OF THESE FUNDS WOULD BE SELF-MONITORING AND NOT REQUIRED.</ExplanationTxt>
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    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <HousingAllowanceOrResidenceInd>X</HousingAllowanceOrResidenceInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
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        <PersonNm>DONNA LINDNER</PersonNm>
        <TitleTxt>HEAD OF SCHOOL</TitleTxt>
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        <OtherCompensationFilingOrgAmt>31976</OtherCompensationFilingOrgAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KAVAN YEE</PersonNm>
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        <TotalCompensationFilingOrgAmt>157416</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JUSTIN MCLEAN</PersonNm>
        <TitleTxt>DIRECTOR OF PRIMARY SCHOOL</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
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        <OtherCompensationFilingOrgAmt>408</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>152603</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HEAD OF SCHOOL RECEIVES A HOUSING ALLOWANCE WHICH IS INCLUDED IN TAXABLE COMPENSATION.</ExplanationTxt>
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        <PurposeDesc>REFINANCING OUTSTANDING 2013 SERIES A AND SERIES B BONDS</PurposeDesc>
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        <BondReferenceCd>A</BondReferenceCd>
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        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
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      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
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        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
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        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
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        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>7463</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
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      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>AUCTION ITEMS</Desc>
        <ContributionCnt>158</ContributionCnt>
        <NoncashContributionsRptF990Amt>41683</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
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      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING THE YEAR, THE ORGANIZATION ADOPTED AMENDED AND RESTATED BYLAWS TO REFLECT UPDATES TO ITS GOVERNANCE STRUCTURE AND BOARD OPERATIONS. SIGNIFICANT CHANGES INCLUDED: (1) REMOVAL OF THE PARENT ASSOCIATION PRESIDENT AS AN EX OFFICIO VOTING TRUSTEE AND CONVERSION OF THE HEAD OF SCHOOL POSITION FROM AN EX OFFICIO VOTING TRUSTEE TO AN EX OFFICIO NON-VOTING TRUSTEE; (2) REVISION OF TRUSTEE TERM LIMITS AND SERVICE REQUIREMENTS; (3) ELIMINATION OF PROXY VOTING BY TRUSTEES; (4) RESTRUCTURING OF BOARD COMMITTEES, INCLUDING THE REPLACEMENT OF THE FINANCE COMMITTEE WITH A FINANCIAL SUSTAINABILITY COMMITTEE, CREATION OF SEPARATE INVESTMENT AND AUDIT COMMITTEES, REPLACEMENT OF THE COMMITTEE ON TRUSTEES WITH A GOVERNANCE COMMITTEE, AND EXPANSION OF THE DIVERSITY COMMITTEE INTO A DIVERSITY, EQUITY, INCLUSION, AND BELONGING (DEIB) COMMITTEE; AND (5) ADDITION OF GOVERNANCE PROVISIONS RELATED TO CONFLICTS OF INTEREST, INTERESTED-PERSON LIMITATIONS, AND ENHANCED FINANCIAL OVERSIGHT PROCEDURES. THE AMENDED BYLAWS ALSO UPDATED PROVISIONS RELATING TO BOARD MEETINGS, OFFICER TERMS, HEAD OF SCHOOL GOVERNANCE, AND COMMITTEE RESPONSIBILITIES</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD EXECUTIVE COMMITTEE IS THE ONLY COMMITTEE WITH AUTHORITY TO ACT ON BEHALF OF THE FULL BOARD OF TRUSTEES. CONTEMPORANEOUS DOCUMENTATION IS NOT CURRENTLY REQUIRED FOR EXECUTIVE COMMITTEE MEETINGS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF TRUSTEES IS FAIRLY LARGE WITH UP TO 30 MEMBERS PREDOMINANTLY COMPRISED OF CURRENT PARENTS WHO KNOW EACH OTHER PERSONALLY AS WELL AS IN THEIR ROLE AS TRUSTEES OF LOWELL SCHOOL. BECAUSE THE RELATIONSHIPS BETWEEN THESE TRUSTEES AND LOWELL SCHOOL'S MAJOR DONORS ARE OFTEN PERSONAL THERE IS A CERTAIN AMOUNT OF INFORMATION ABOUT FAMILY DONATIONS THAT IS PREFERRED TO REMAIN PRIVATE. FOR THIS REASON, THE FULL BOARD OF TRUSTEES RECEIVES THE "PUBLIC DISCLOSURE" VERSION OF THE FEDERAL FORM 990 TO REVIEW PRIOR TO FILING THE RETURN WITH THE INTERNAL REVENUE SERVICE. ALL BOARD OF TRUSTEES ARE INFORMED EACH YEAR THAT THE COMPLETE VERSION OF THE FEDERAL FORM 990, INCLUDING DONOR INFORMATION IS AVAILABLE TO REVIEW IN LOWELL SCHOOL'S BUSINESS OFFICE ANY TIME THEY WISH TO REVIEW IT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THROUGH THE BOARD OF TRUSTEES ORIENTATION DONE AT THE BEGINNING OF EACH ACADEMIC YEAR, A FULL EXPLANATION OF THIS POLICY IS REVIEWED. THE BOARD OF TRUSTEES IS ALSO MADE UP OF MANY CURRENT PARENTS AND THIS PERSPECTIVE ALSO BRINGS WITH IT A CONSTANT OVERSIGHT OF THE APPROPRIATENESS OF HOW BOARD OF TRUSTEES MEMBERS ARE NOT ABUSING OR TAKING ADVANTAGE OF THEIR ROLE AS TRUSTEES. FINALLY, LOWELL SCHOOL HAS LEGAL COUNSEL WHO IS QUITE VIGILANT AROUND THESE ISSUES. KEY EMPLOYEES ARE MADE AWARE OF THE CONFLICT-OF-INTEREST POLICY ON AN ANNUAL BASIS DURING THE BOARD OF TRUSTEES ORIENTATION AND ARE HELD TO THE SAME STANDARD AS TRUSTEES TO ASSURE THEY ARE NOT ABUSING OR TAKING ADVANTAGE OF THEIR ROLE AS A KEY EMPLOYEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE HEAD SUPPORT AND REVIEW COMMITTEE ANNUALLY REVIEWS THE HEAD OF SCHOOL'S COMPENSATION PACKAGE AND UTILIZES BOTH LOCAL COMPARATIVE STATISTICS PROVIDED BY THE ASSOCIATION OF INDEPENDENT SCHOOLS OF GREATER WASHINGTON (AISGW) AND THE ASSOCIATION OF MARYLAND SCHOOLS (AIMS) AND NATIONAL STATISTICS PROVIDED BY THE NATIONAL ASSOCIATION OF INDEPENDENT SCHOOLS (NAIS) BASED ON SIZE OF SCHOOL, AND YEARS OF EXPERIENCE. A COMPENSATION PACKAGE IS THEN PUT INTO PLACE FOR THE HEAD OF SCHOOL. THE FULL BOARD OF TRUSTEES DOES NOT VOTE ON THIS PARTICULAR COMPENSATION, BUT DOES VOTE FOR AN ANNUAL BUDGET EACH YEAR, WHICH INCORPORATES THIS COMPENSATION PACKAGE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>'THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS OF THE SCHOOL ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN IRC 6104(D).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>1626 KALMIA ROAD LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1640 KALMIA ROAD NW</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20012</ZIPCd>
        </USAddress>
        <EIN>521220544</EIN>
        <PrimaryActivitiesTxt>PROPERTY MANAGEMENT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DC</LegalDomicileStateCd>
        <TotalIncomeAmt>63288</TotalIncomeAmt>
        <EndOfYearAssetsAmt>1209138</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LOWELL SCHOOL</BusinessNameLine1Txt>
        </DirectControllingEntityName>
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    </IRS990ScheduleR>
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</Return>