Liabilities / Assets
60th percentile
Higher debt load relative to assets than 60% of similar nonprofits.
EIN 52-1332749 • 501(c)3 • Arrington, TN
Profile
Organized to promote education in hydrography.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
60th percentile
Higher debt load relative to assets than 60% of similar nonprofits.
Liabilities / Revenue
62nd percentile
Higher debt load relative to revenue than 62% of similar nonprofits.
Net Margin
77th percentile
Higher net margin than 77% of similar nonprofits.
Top Officer Pay
81st percentile
Higher top officer pay than 81% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
82nd percentile
Faster asset growth than 82% of similar nonprofits.
Revenue Growth
93rd percentile
Faster revenue growth than 93% of similar nonprofits.
Assets
Up$294,932
Up $77,574 (+36%) from 2023
Liabilities
Flat$9
Flat from 2023
Net Assets
Up$294,923
Up $77,574 (+36%) from 2023
Revenue
Up$322,006
Up $176,729 (+122%) from 2023
Expenses
Up$244,432
Up $28,570 (+13%) from 2023
Net Income
Up$77,574
Up $148,159 (+210%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Organized to promote education in hydrography.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $200,421 | $283,908 | ▲ $83,487 |
| Cash and Non-Interest-Bearing Accounts | $16,937 | $11,024 | ▼ $5,913 |
| Total Assets | $217,358 | $294,932 | ▲ $77,574 |
| Liabilities | |||
| Other Liabilities | $9 | $9 | → $0 |
| Total Liabilities | $9 | $9 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $217,349 | $294,923 | ▲ $77,574 |
| Total Net Assets Fund Balance | $217,349 | $294,923 | ▲ $77,574 |
| Total Liabilities and Net Assets / Fund Balance | $217,358 | $294,932 | ▲ $77,574 |
| Name | Title |
|---|---|
| Brian Connon | President |
| Chris Mchugh | Director |
| Kim Dailey | Director |
| Lauren Quas | Director |
| Rachel Bobrich | Director |
| Corey Goodrich | Secretary |
| Harold Orlinsky | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $220,752 |
| Grants and Similar Amounts Paid | $23,680 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Individuals | $23,680 | - | - | $23,680 |
| Fees for Services Accounting | - | $8,504 | - | $8,504 |
| Other Expenses | $16,600 | $4,254 | - | $4,254 |
| Insurance | - | $1,538 | - | $1,538 |
| Office Expenses | $348 | - | - | $348 |
| Total Functional Expenses | $230,136 | $14,296 | $0 | $244,432 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Midwest Chapter Holdng Account | $9 |
“Officers and directors are elected by the members and serve two year terms.”
“Changes to the by-laws are first approved by the board and then voted on by the membership at the annual general meeting.”
“The hydrographic society of america has 3 local chapters that follow the national organization policies but may also have local rules for their members.”
“Reviewed in detail by the president and treasurer, prior to distribution to the full board of directors.”
“Every new board member signs a conflict of interest disclosure form the year they are elected to the board of directors.”
“Governing documents are available upon request within a reasonable amount of time.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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|---|---|---|
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| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | ORGANIZED TO PROMOTE EDUCATION IN HYDROGRAPHY. |
| IRS990/AddressChangeInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | HAROLD ORLINSKY |
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| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ARRINGTON |
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| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 11024 |
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| IRS990/CYRevenuesLessExpensesAmt | 0 | 77574 |
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| IRS990/CYTotalExpensesAmt | 0 | 244432 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
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| IRS990/Desc | 0 | PROVIDING AN OPPORTUNITY FOR THOSE INTERESTED IN THE FIELD OF HYDROGRAPHY TO EXCHANGE IDEAS AND LEARN ABOUT NEW DEVELOPMENTS IN THE INDUSTRY. |
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| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 8504 |
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| IRS990/ForeignFinancialAccountInd | 0 | false |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | HAROLD ORLINSKY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | COREY GOODRICH |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | SECRETARY |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1984 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantAmt | 0 | 23680 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 23680 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 23680 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 322006 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1538 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 1538 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 10043 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 10043 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | true |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | ORGANIZED TO PROMOTE EDUCATION IN HYDROGRAPHY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 217349 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 294923 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 217349 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 294923 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 348 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 348 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | MEMBER EVENTS |
| IRS990/OtherExpensesGrp/Desc | 1 | CHAPTER DUES |
| IRS990/OtherExpensesGrp/Desc | 2 | WEB DESIGN |
| IRS990/OtherExpensesGrp/Desc | 3 | MERCHANT FEES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4254 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 132694 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 56814 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 16600 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 132694 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 56814 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 16600 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 4254 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 9 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 9 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PoliciesReferenceChaptersInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | BRIAN CONNON |
| IRS990/ProfessionalFundraisingInd | 0 | false |
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| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | EVENTS/CLASSES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | MEMBERSHIP DUES |
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| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 37000 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 274963 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 37000 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | US HYDRO - THIS IS A BIENNIAL INTERNATIONAL CONFERENCE THAT ALTERNATES WITH THE CANADIAN HYDROGRAPHIC CONFERENCE. IT TYPICALLY INCLUDES 500 REGISTRANTS AND 50 EXHIBITORS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 132694 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 234561 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 6500 |
| IRS990/PYInvestmentIncomeAmt | 0 | 136 |
| IRS990/PYOtherExpensesAmt | 0 | 209362 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 145141 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -70585 |
| IRS990/PYTotalExpensesAmt | 0 | 215862 |
| IRS990/PYTotalRevenueAmt | 0 | 145277 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
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| IRS990/ReconcilationRevenueExpnssAmt | 0 | 77574 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
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| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
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| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 283908 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 500 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1000 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 1500 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 10043 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 136 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 111 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 98 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2149 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 12537 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 311963 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 145141 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 193172 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 75691 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 22550 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 748517 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 10043 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 136 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 111 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 98 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 2149 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 12537 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.02000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.01000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.98360 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99150 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 750017 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 311963 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 145141 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 193672 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 76691 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 22550 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 750017 |
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| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 145277 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 193783 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 76789 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 24699 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 762554 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 9 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | MIDWEST CHAPTER HOLDNG ACCOUNT |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 9 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | true |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 0 | 23680 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/GrantTypeTxt | 0 | SCHOLARSHIPS |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/RecipientCnt | 0 | 22 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | COMMITTEE CHAIRPERSONS CONFIRM THAT RECIPIENTS ARE ENROLLED IN AN INSTITUTE FOR HIGHER LEARNING. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE I, PAGE 1, PART I, LINE 2 |
| IRS990ScheduleI/Total501c3OrgCnt | 0 | 1 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | OFFICERS AND DIRECTORS ARE ELECTED BY THE MEMBERS AND SERVE TWO YEAR TERMS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | CHANGES TO THE BY-LAWS ARE FIRST APPROVED BY THE BOARD AND THEN VOTED ON BY THE MEMBERSHIP AT THE ANNUAL GENERAL MEETING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE HYDROGRAPHIC SOCIETY OF AMERICA HAS 3 LOCAL CHAPTERS THAT FOLLOW THE NATIONAL ORGANIZATION POLICIES BUT MAY ALSO HAVE LOCAL RULES FOR THEIR MEMBERS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | REVIEWED IN DETAIL BY THE PRESIDENT AND TREASURER, PRIOR TO DISTRIBUTION TO THE FULL BOARD OF DIRECTORS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | EVERY NEW BOARD MEMBER SIGNS A CONFLICT OF INTEREST DISCLOSURE FORM THE YEAR THEY ARE ELECTED TO THE BOARD OF DIRECTORS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST WITHIN A REASONABLE AMOUNT OF TIME. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PAGE 6, PART VI, LINE 7A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 7B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 10B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PAGE 6, PART VI, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 217358 |
| IRS990/TotalAssetsEOYAmt | 0 | 294932 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 217358 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 294932 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 14296 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 230136 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 244432 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 9 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 9 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 9 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 9 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 217349 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 294923 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 230136 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 311963 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 10043 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 311963 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 322006 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 217358 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 294932 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | C/O 5842 WAGONVALE DRIVE |
| IRS990/USAddress/CityNm | 0 | ARRINGTON |
| IRS990/USAddress/StateAbbreviationCd | 0 | TN |
| IRS990/USAddress/ZIPCd | 0 | 37014 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 7 |
| IRS990/VotingMembersIndependentCnt | 0 | 7 |
| IRS990/WebsiteAddressTxt | 0 | WWW.THSOA.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | HAROLD ORLINSKY |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8606351500 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-11-14 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | THE HYDROGRAPHIC SOCIETY OF AMERICA |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | HYDR |
| ReturnHeader/Filer/EIN | 0 | 521332749 |
| ReturnHeader/Filer/PhoneNum | 0 | 8608340447 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | C/O 5842 WAGONVALE DRIVE |
| ReturnHeader/Filer/USAddress/CityNm | 0 | ARRINGTON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | TN |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 37014 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 060971998 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | GUILMARTIN DIPIRO & SOKOLOWSKI LLC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 505 MAIN ST |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | MIDDLETOWN |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | CT |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 064572809 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 8603475689 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-11-17 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | CHRISTOPHER B CONLEY |
| ReturnHeader/ReturnTs | 0 | 2025-11-17T21:32:35-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-12-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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