﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2018v3.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2019-03-25T09:42:31-05:00</ReturnTs>
    <TaxPeriodEndDt>2018-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>900001374</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JAMES F BOGLE CPA PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>244 WILLOW ST</AddressLine1Txt>
        <CityNm>YARMOUTH PORT</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>026751757</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2018-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>043338308</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THREE BAYS PRESERVATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>THRE</BusinessNameControlTxt>
      <PhoneNum>5084200780</PhoneNum>
      <USAddress>
        <AddressLine1Txt>P O BOX 215</AddressLine1Txt>
        <CityNm>OSTERVILLE</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02655</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>MICHAEL EGAN</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>5084200780</PhoneNum>
      <SignatureDt>2019-01-31</SignatureDt>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>JAMES F BOGLE CPA</PreparerPersonNm>
      <PTIN>P00146033</PTIN>
      <PhoneNum>5083628123</PhoneNum>
      <PreparationDt>2019-03-25</PreparationDt>
    </PreparerPersonGrp>
    <FilingSecurityInformation>
      <IPAddress>
        <IPv4AddressTxt>66.31.189.107</IPv4AddressTxt>
      </IPAddress>
      <IPDt>2019-03-25</IPDt>
      <IPTm>09:42:31</IPTm>
      <IPTimezoneCd>CD</IPTimezoneCd>
      <FilingLicenseTypeCd>P</FilingLicenseTypeCd>
      <AtSubmissionCreationDeviceId>3BBFF4CA6EFD4A04D21E440D4CF29CC94943ACC2</AtSubmissionCreationDeviceId>
      <AtSubmissionFilingDeviceId>3BBFF4CA6EFD4A04D21E440D4CF29CC94943ACC2</AtSubmissionFilingDeviceId>
    </FilingSecurityInformation>
    <TaxYr>2018</TaxYr>
    <BuildTS>2019-02-21 02:37:17Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc3" referenceDocumentId="RetDoc7">
      <DoingBusinessAsName>
        <BusinessNameLine1Txt>BARNSTABLE CLEAN WATER COALITION</BusinessNameLine1Txt>
      </DoingBusinessAsName>
      <PrincipalOfficerNm>MICHAEL EGAN</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>3 COUNTRY WAY</AddressLine1Txt>
        <CityNm>HOPKINTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01740</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>1122422</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>BCLEANWATER.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1996</FormationYr>
      <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>PRESERVATION OF THE WATER QUALITY ON CAPE COD, MASSACHUSETTS.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>12</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>12</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>8</TotalEmployeeCnt>
      <TotalVolunteersCnt>15</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>507497</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>881165</CYContributionsGrantsAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>239551</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>31130</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>-2997</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>48066</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>744051</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>960361</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>1500</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>3000</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>220216</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>311897</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>45739</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>381079</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>452667</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>602795</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>767564</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>141256</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>192797</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>2537007</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>2692382</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>48356</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>95436</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>2488651</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>2596946</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>PRESERVATION OF THE WATER QUALITY ON CAPE COD, MASSACHUSETTS.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>652194</ExpenseAmt>
      <GrantAmt>3000</GrantAmt>
      <Desc>TO PROMOTE PUBLIC AWARENESS CONCERNING THE AQUATIC AND RELATED ENVIROMENT AND TO PROTECT, MAINTAIN, AND ENHANCE THE WATER IN AND AROUND BARNSTABLE COUNTY(CAPE COD) MASSACHUSETTS</Desc>
      <TotalProgramServiceExpensesAmt>652194</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc8">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc4">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc4">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc4">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc4">false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="RetDoc4">false</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc4">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc4">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc4">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc4">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc4">false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc4">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc4">true</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc4">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd referenceDocumentId="RetDoc5">false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd referenceDocumentId="RetDoc5">true</FundraisingActivitiesInd>
      <GamingActivitiesInd referenceDocumentId="RetDoc5">false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd referenceDocumentId="RetDoc6">true</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd referenceDocumentId="RetDoc6">false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>10</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>false</BackupWthldComplianceInd>
      <EmployeeCnt>8</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>12</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>12</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>false</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>ZENAS CROCKER</PersonNm>
        <PhoneNum>5084200780</PhoneNum>
        <USAddress>
          <AddressLine1Txt>864 MAIN ST</AddressLine1Txt>
          <CityNm>OSTERVILLE</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02655</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL EGAN</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN KASSAKIAN</PersonNm>
        <TitleTxt>VICE PRESIDE</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAUREEN PFIZENMAIER</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK CURLEY</PersonNm>
        <TitleTxt>CLERK</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JACK AHERN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EDWARD M CROSBY JR</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TRAVIS CUNDIFF</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN T FALLON JR</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>THOMAS LLOYD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AUDRA PARKER</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARGARET ROWLAND</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAN SCHWINN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <GovernmentGrantsAmt>18000</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>863165</AllOtherContributionsAmt>
      <NoncashContributionsAmt>87954</NoncashContributionsAmt>
      <TotalContributionsAmt>881165</TotalContributionsAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>26835</TotalRevenueColumnAmt>
        <ExclusionAmt>26835</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>145609</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>141314</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>4295</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>4295</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4295</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <FundraisingGrossIncomeAmt>68813</FundraisingGrossIncomeAmt>
      <FundraisingDirectExpensesAmt>20747</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>48066</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>960361</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4295</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>26835</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>3000</TotalAmt>
        <ProgramServicesAmt>3000</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>280556</TotalAmt>
        <ProgramServicesAmt>189863</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58684</ManagementAndGeneralAmt>
        <FundraisingAmt>32009</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>7980</TotalAmt>
        <ProgramServicesAmt>5266</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1756</ManagementAndGeneralAmt>
        <FundraisingAmt>958</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>23361</TotalAmt>
        <ProgramServicesAmt>16728</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4292</ManagementAndGeneralAmt>
        <FundraisingAmt>2341</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>14520</TotalAmt>
        <ProgramServicesAmt>10020</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4500</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>15965</TotalAmt>
        <ProgramServicesAmt>5752</ProgramServicesAmt>
        <FundraisingAmt>10213</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>7429</TotalAmt>
        <ProgramServicesAmt>7429</ProgramServicesAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>31601</TotalAmt>
        <ProgramServicesAmt>31601</ProgramServicesAmt>
      </OccupancyGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>7689</TotalAmt>
        <ProgramServicesAmt>7689</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>12438</TotalAmt>
        <ProgramServicesAmt>12212</ProgramServicesAmt>
        <ManagementAndGeneralAmt>146</ManagementAndGeneralAmt>
        <FundraisingAmt>80</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>DREDGE WORK</Desc>
        <TotalAmt>219046</TotalAmt>
        <ProgramServicesAmt>219046</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PUBLIC OUTREACH</Desc>
        <TotalAmt>44890</TotalAmt>
        <ProgramServicesAmt>44890</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>WATER QUALITY MONITORING</Desc>
        <TotalAmt>24033</TotalAmt>
        <ProgramServicesAmt>24033</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>WATERSHED PLAN PROJECT</Desc>
        <TotalAmt>22090</TotalAmt>
        <ProgramServicesAmt>22090</ProgramServicesAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>52966</TotalAmt>
        <ProgramServicesAmt>52575</ProgramServicesAmt>
        <ManagementAndGeneralAmt>253</ManagementAndGeneralAmt>
        <FundraisingAmt>138</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>767564</TotalAmt>
        <ProgramServicesAmt>652194</ProgramServicesAmt>
        <ManagementAndGeneralAmt>69631</ManagementAndGeneralAmt>
        <FundraisingAmt>45739</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>181858</BOYAmt>
        <EOYAmt>28934</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>6654</BOYAmt>
        <EOYAmt>448309</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>8619</BOYAmt>
        <EOYAmt>10168</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1081735</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>72263</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>972218</BOYAmt>
        <EOYAmt>1009472</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>1367658</BOYAmt>
        <EOYAmt>1195499</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>2537007</BOYAmt>
        <EOYAmt>2692382</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>48356</BOYAmt>
        <EOYAmt>95436</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>48356</BOYAmt>
        <EOYAmt>95436</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>1530446</BOYAmt>
        <EOYAmt>1646841</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>23505</BOYAmt>
        <EOYAmt>15405</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>934700</BOYAmt>
        <EOYAmt>934700</EOYAmt>
      </PermanentlyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>2488651</BOYAmt>
        <EOYAmt>2596946</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>2537007</BOYAmt>
        <EOYAmt>2692382</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>192797</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-84502</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>false</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc8">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>209968</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>471666</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>478011</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>507497</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>881165</CurrentTaxYearAmt>
        <TotalAmt>2548307</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>209968</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>471666</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>478011</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>507497</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>881165</CurrentTaxYearAmt>
        <TotalAmt>2548307</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>2548307</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>13807</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>14930</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>16018</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15941</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>26835</CurrentTaxYearAmt>
        <TotalAmt>87531</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>2635838</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>85932</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.96680</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.96510</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1" />
    <IRS990ScheduleD documentId="RetDoc4">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>934700</OtherCostOrOtherBasisAmt>
        <BookValueAmt>934700</BookValueAmt>
      </LandGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>147035</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>72263</DepreciationAmt>
        <BookValueAmt>74772</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>1009472</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>960361</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>960361</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>960361</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>767564</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>767564</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>767564</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc5">
      <FundraisingEventInformationGrp>
        <Event1Nm>MISC FUNDRAISER</Event1Nm>
        <GrossReceiptsEvent1Amt>68813</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>68813</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>20747</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>68813</GrossReceiptsTotalAmt>
        <GrossRevenueTotalEventsAmt>68813</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>20747</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>20747</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>48066</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleM documentId="RetDoc6">
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>87954</NoncashContributionsRptF990Amt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>false</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc7">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 1, ITEM C</FormAndLineReferenceDesc>
        <ExplanationTxt>BARNSTABLE CLEAN WATER COALITION</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>TREASURER AND EXECUTIVE REVIEW THE RETURN BEFORE FILING</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>YES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTS ARE AVAILABLE AT THE CORPORATE OFFICES FOR INSPECTION</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>