Liabilities / Assets
20th percentile
Higher debt load relative to assets than 20% of similar nonprofits.
EIN 30-1128021 • 501(c)3 • Nantucket, MA
Profile
The purpose of the corporation is to act as a not-for-profit organization with a primary mission of promoting the health of nantucket islands harbor and its marine ecosystem. The corporation will work with the nantucket department of natural resources and other governmental and nongovernmental organizations, groups and individuals in furtherance of its primary mission and other activities. The corporation may solicit donations, make grants and otherwise engage in any and all activities permitted to a not-for-profit corporation whether in furtherance of its mission or other charitable endeavors, other actions as may be necessary or expedient for the administration of the affairs and attainment of the purposes of the corporation, and for all other activities legal and consistent with the operation of a non-profit corporation in the commonwealth of massachusetts.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
20th percentile
Higher debt load relative to assets than 20% of similar nonprofits.
Liabilities / Revenue
24th percentile
Higher debt load relative to revenue than 24% of similar nonprofits.
Net Margin
49th percentile
Higher net margin than 49% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
65th percentile
Faster asset growth than 65% of similar nonprofits.
Revenue Growth
5th percentile
Faster revenue growth than 5% of similar nonprofits.
Assets
Up$3,443,064
Up $292,980 (+9.3%) from 2023
Liabilities
Up$842
Up $181 (+27%) from 2023
Net Assets
Up$3,442,222
Up $292,799 (+9.3%) from 2023
Revenue
Down$333,006
Down $402,173 (-55%) from 2023
Expenses
Up$319,293
Up $111,498 (+54%) from 2023
Net Income
Down$13,713
Down $513,671 (-97%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
The purpose of the corporation is to act as a not-for-profit organization with a primary mission of promoting the health of nantucket islands harbor and its marine ecosystem. The corporation will work with the nantucket department of natural resources and other governmental and nongovernmental organizations, groups and individuals in furtherance of its primary mission and other activities. The corporation may solicit donations, make grants and otherwise engage in any and all activities permitted to a not-for-profit corporation whether in furtherance of its mission or other charitable endeavors, other actions as may be necessary or expedient for the administration of the affairs and attainment of the purposes of the corporation, and for all other activities legal and consistent with the operation of a non-profit corporation in the commonwealth of massachusetts.
The organization will work with the nantucket natural resources department and other organizations to promote the health of nantucket harbor and its marine ecosystems. Recently funded projects included nantucket stormwater monitoring, a harbor health scorecard, youth harbor eduction program, and ocean acidification buoy. Upcoming projects include scallop research and mentoring program, eelgrass management plan, nantucket harbor health integration initiative, microplastics study, among others.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $2,888,818 | $3,227,474 | ▲ $338,656 |
| Cash and Non-Interest-Bearing Accounts | $74,080 | $152,154 | ▲ $78,074 |
| Pledges and Grants Receivable | $187,186 | $61,936 | ▼ $125,250 |
| Prepaid Expenses and Deferred Charges | - | $1,500 | - |
| Total Assets | $3,150,084 | $3,443,064 | ▲ $292,980 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $661 | $842 | ▲ $181 |
| Total Liabilities | $661 | $842 | ▲ $181 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $3,129,423 | $3,422,222 | ▲ $292,799 |
| Net Assets With Donor Restrictions | $20,000 | $20,000 | → $0 |
| Total Net Assets Fund Balance | $3,149,423 | $3,442,222 | ▲ $292,799 |
| Total Liabilities and Net Assets / Fund Balance | $3,150,084 | $3,443,064 | ▲ $292,980 |
| Name | Title |
|---|---|
| Elliot Gewirtz | Chairman Emeritus |
| Paul Collins | President |
| Matthew Dwyer | Vice President |
| Brooke Stanton | Board Member |
| Edward Bernard | Board Member |
| Edward Orenstein | Board Member |
| Marcus Fuller | Board Member |
| Melinda Puljic | Board Member |
| Flip Huffard | Director |
| Jeff Krupa | Director |
| Joseph Smialowski | Director |
| Karen Ketterer | Director |
| Cynthia Fowler | Clerk |
| William Einstein | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Handy & Dallaire Events | Event Planning & Rentals | PO BOX 1101, Nantucket, MA 02554 | $171,081 |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $162,615 |
| Other Expenses | $156,678 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $162,615 | - | - | $162,615 |
| Fees for Services Legal | - | $79,878 | - | $79,878 |
| Other Expenses | - | $57,770 | - | $57,770 |
| Office Expenses | - | $11,557 | - | $11,557 |
| Advertising | - | $3,933 | - | $3,933 |
| Insurance | - | $3,450 | - | $3,450 |
| Travel | - | $90 | - | $90 |
| Total Functional Expenses | $162,615 | $156,678 | $0 | $319,293 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $822,237 |
| Total Expenses per Audited Statements | $822,237 |
| Total Expenses per Form 990 | $319,293 |
| Expenses Not Reported on Form 990 | $0 |
| Expenses Not Reported on Financial Statements | $-502,944 |
| Other Expense Adjustments | $-502,944 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Maria Mitchell Association | Nantucket, MA | 501c3 | To Ocean Acidification Buoy Grant and to Support Scallop Research and Mentorship Program | $84,515 |
| Nantucket Land & Water Council | Nantucket, MA | 501c3 | To Support Storm Water Sampling Program | $37,500 |
| Nantucket Field Station - Umass | Nantucket, MA | 501c3 | Donation Made for Supporting Our Youth Program | $13,000 |
| Egan Maritime Institute | Nantucket, MA | 501c3 | Donation Made for Supporting Safe Boating and Vessel Course | $2,600 |
| Line Item | Amount |
|---|---|
| Fundraising Direct Expenses | $502,944 |
| Fundraising Gross Income | $177,678 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Dinner | $351,178 | $177,678 | $21,867 | $155,811 |
| Total Events | $351,178 | $177,678 | $502,964 | $-325,286 |
“The foundation has its form 990 prepared by an outside accounting firm and has established the following review process to ensure that the information reported is complete and accurate. When the form 990 has been prepared and reviewed by management, it is electronically sent to the members of the finance committee for any comments. Any comments are then grouped, summarized and reviewed with management and the accounting firm. All issues are documented and addressed. The form 990 is then submitted to the full board of directors for their review and approval. Each issue is documented and addressed until the return is finalized and approved for filing.”
“The foundation has a written conflict of interest policy, which applies to all board members and officers, that is monitored and enforced annually. All board members and officers are required to complete an annual conflict of interest disclosure statement. In the event that the board should establish that a proposed transaction or arrangement establishes a conflict of interest, the board shall then proceed with the following actions: (1) any interest individual may render a request or report at the board meeting, but upon completion of said request or report the individual shall be excused while the board discusses the information and/or material presented, and then votes on the transaction or arrangement proposed involving the possible conflict of interest; (2) the president of the board shall, if deemed necessary and appropriate, appoint a disinterested person or committee to investigate alternatives to the proposed transaction or arrangement; (3) after exercising due diligence, the board shall determine whether the foundation can obtain with reasonable efforts a more advantageous transaction or arrangement from a person or entity that would not give rise to a conflict of interest; (4) if a more advantageous transaction or arrangement is not reasonably possible under circumstances not producing a conflict of interest, the board shall determine by a majority vote of the disinterest directors whether the transaction or arrangement is in the foundation's best interest, for its own benefit and whether it is fair and reasonable. It shall make its decision as to whether to enter into the transaction arrangement in conformity with this determination.”
“The organization makes its form 990 available for public inspection as required under section 6104 of the internal revenue code. Form 990 is posted guidestar.org and other similar types of websites. In addition, governing documents, financial statements and conflict of interest policy are also available upon written request at 96 washington street, nantucket, ma 02554 or by calling the organization directly at 508-680-5033.”
“The organization has a committee that assumes responsibility for oversight of the audit of the organization's financial statements and selection of an independent accountant. This process did not change from the prior year.”
“The foundation recognized the effects of income tax positions when they are more likely than not to be sustained. Management has determined that the foundation had no uncertain tax positions that would require financial statement recognition or disclosure. The foundation is subject to federal or state income tax examinations for periods since inception.”
“Fund raising expenses -502,944.”
“Fund raising expenses -502,944.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 661 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 842 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE ORGANIZATION WILL WORK WITH THE NANTUCKET NATURAL RESOURCES DEPARTMENT AND OTHER ORGANIZATIONS TO PROMOTE THE HEALTH OF NANTUCKET HARBOR AND ITS MARINE ECOSYSTEMS. RECENTLY FUNDED PROJECTS INCLUDED NANTUCKET STORMWATER MONITORING, A HARBOR HEALTH SCORECARD, YOUTH HARBOR EDUCTION PROGRAM, AND OCEAN ACIDIFICATION BUOY. UPCOMING PROJECTS INCLUDE SCALLOP RESEARCH AND MENTORING PROGRAM, EELGRASS MANAGEMENT PLAN, NANTUCKET HARBOR HEALTH INTEGRATION INITIATIVE, MICROPLASTICS STUDY, AMONG OTHERS. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 3933 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 3933 |
| IRS990/AllOtherContributionsAmt | 0 | 342513 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | KERRY TILTON |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5086805033 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 96 WASHINGTON STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NANTUCKET |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02554 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 74080 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 152154 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 171081 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 1101 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | NANTUCKET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 02554 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | HANDY & DALLAIRE EVENTS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | EVENT PLANNING & RENTALS |
| IRS990/ContriRptFundraisingEventAmt | 0 | 173500 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 516013 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 162615 |
| IRS990/CYInvestmentIncomeAmt | 0 | 138659 |
| IRS990/CYOtherExpensesAmt | 0 | 156678 |
| IRS990/CYOtherRevenueAmt | 0 | -321666 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 13713 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 319293 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 333006 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | THE GREAT HARBOR YACHT CLUB FOUNDATION WAS FORMED IN 2018 AND IS DEDICATED TO THE PROMOTION AND PRESERVATION OF NANTUCKET HARBOR AND ITS MARINE ECOSYSTEM. THE FOUNDATION WILL WORK WITH THE TOWN OF NANTUCKET'S DEPARTMENT OF NATURAL RESOURCES AND OTHERS TO FUND PROJECTS WHICH MIGHT OTHERWISE GO UNFUNDED IN FURTHERANCE OF THE FOUNDATION'S MISSION AND THE TOWN OF NANTUCKET'S STRATEGIC HARBOR PLAN. DURING THE YEAR THE FOUNDATION HAD ITS INITIAL GALA AND CAPITAL CAMPAIGN TO RAISE MONEY TO SUPPORT ITS MISSION MOVING FORWARD. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 20000 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 20000 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 162615 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 79878 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 79878 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
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| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CYNTHIA FOWLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | KAREN KETTERER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JOSEPH SMIALOWSKI |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | EDWARD BERNARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | BROOKE STANTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ELLIOT GEWIRTZ |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | EDWARD ORENSTEIN |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | CHAIRMAN EMERITUS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | BOARD MEMBER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2018 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 173500 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 502944 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 177678 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 49907 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 14 |
| IRS990/GrantAmt | 0 | 162615 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 162615 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 162615 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 49907 |
| IRS990/GrossReceiptsAmt | 0 | 835950 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 14 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 3450 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 3450 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 88752 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 88752 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE PURPOSE OF THE CORPORATION IS TO ACT AS A NOT-FOR-PROFIT ORGANIZATION WITH A PRIMARY MISSION OF PROMOTING THE HEALTH OF NANTUCKET ISLANDS HARBOR AND ITS MARINE ECOSYSTEM. THE CORPORATION WILL WORK WITH THE NANTUCKET DEPARTMENT OF NATURAL RESOURCES AND OTHER GOVERNMENTAL AND NONGOVERNMENTAL ORGANIZATIONS, GROUPS AND INDIVIDUALS IN FURTHERANCE OF ITS PRIMARY MISSION AND OTHER ACTIVITIES. THE CORPORATION MAY SOLICIT DONATIONS, MAKE GRANTS AND OTHERWISE ENGAGE IN ANY AND ALL ACTIVITIES PERMITTED TO A NOT-FOR-PROFIT CORPORATION WHETHER IN FURTHERANCE OF ITS MISSION OR OTHER CHARITABLE ENDEAVORS, OTHER ACTIONS AS MAY BE NECESSARY OR EXPEDIENT FOR THE ADMINISTRATION OF THE AFFAIRS AND ATTAINMENT OF THE PURPOSES OF THE CORPORATION, AND FOR ALL OTHER ACTIVITIES LEGAL AND CONSISTENT WITH THE OPERATION OF A NON-PROFIT CORPORATION IN THE COMMONWEALTH OF MASSACHUSETTS. |
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| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | THE ORGANIZATION IS REPORTING A SHORT YEAR FOR THE YEAR ENDING 12/31/18. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II, COLUMN (D) 2018: |
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| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
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| IRS990ScheduleD/FootnoteTextInd | 0 | X |
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| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE FOUNDATION RECOGNIZED THE EFFECTS OF INCOME TAX POSITIONS WHEN THEY ARE MORE LIKELY THAN NOT TO BE SUSTAINED. MANAGEMENT HAS DETERMINED THAT THE FOUNDATION HAD NO UNCERTAIN TAX POSITIONS THAT WOULD REQUIRE FINANCIAL STATEMENT RECOGNITION OR DISCLOSURE. THE FOUNDATION IS SUBJECT TO FEDERAL OR STATE INCOME TAX EXAMINATIONS FOR PERIODS SINCE INCEPTION. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | FUND RAISING EXPENSES -502,944. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 2 | FUND RAISING EXPENSES -502,944. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART XI, LINE 4B - OTHER ADJUSTMENTS: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | PART XII, LINE 4B - OTHER ADJUSTMENTS: |
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| IRS990ScheduleI/RecipientTable/CashGrantAmt | 2 | 13000 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 3 | 2600 |
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| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 3 | 0 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | TO OCEAN ACIDIFICATION BUOY GRANT AND TO SUPPORT SCALLOP RESEARCH AND MENTORSHIP PROGRAM |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 1 | TO SUPPORT STORM WATER SAMPLING PROGRAM |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 2 | DONATION MADE FOR SUPPORTING OUR YOUTH PROGRAM |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 3 | DONATION MADE FOR SUPPORTING SAFE BOATING AND VESSEL COURSE |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | MARIA MITCHELL ASSOCIATION |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 1 | NANTUCKET LAND & WATER COUNCIL |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 2 | NANTUCKET FIELD STATION - UMASS |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 3 | EGAN MARITIME INSTITUTE |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 042129139 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 1 | 510180597 |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 2 | 046604534 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 4 VESTAL STREET |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 1 | PO BOX 502 |
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