Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
990 • Fiscal year 2024 • EIN 36-2985870
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
Liabilities / Revenue
28th percentile
Higher debt load relative to revenue than 28% of similar nonprofits.
Net Margin
92nd percentile
Higher net margin than 92% of similar nonprofits.
Top Officer Pay
62nd percentile
Higher top officer pay than 62% of similar nonprofits.
Top officer pay equals 4.5% of source-year revenue.
Asset Growth
88th percentile
Faster asset growth than 88% of similar nonprofits.
Revenue Growth
94th percentile
Faster revenue growth than 94% of similar nonprofits.
Assets
Up$4,273,361
Up $1,632,667 (+62%) from 2022
Net Assets
Up$4,253,232
Up $1,649,947 (+63%) from 2022
Liabilities
Down$20,129
Down $17,280 (-46%) from 2022
Revenue
Up$1,992,161
Up $1,379,860 (+225%) from 2022
Expenses
Up$831,602
Up $407,142 (+96%) from 2022
Net Income
Up$1,160,559
Up $972,718 (+518%) from 2022
To preserve the natural environment and to provide facilities and programs to educate the general public about the natural environment.
Hands-on nature education for all ages
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $2,485,082 | $2,364,683 | ▼ $120,399 |
| Land, Buildings, and Equipment, Net | $14,106 | $1,198,238 | ▲ $1,184,132 |
| Cash and Non-Interest-Bearing Accounts | $424,908 | $553,562 | ▲ $128,654 |
| Pledges and Grants Receivable | $48,685 | $136,708 | ▲ $88,023 |
| Inventories for Sale or Use | $25,054 | $20,170 | ▼ $4,884 |
| Total Assets | $2,997,835 | $4,273,361 | ▲ $1,275,526 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $16,128 | $14,011 | ▼ $2,117 |
| Deferred Revenue | $8,995 | $6,118 | ▼ $2,877 |
| Total Liabilities | $25,123 | $20,129 | ▼ $4,994 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $2,784,178 | $3,722,935 | ▲ $938,757 |
| Net Assets With Donor Restrictions | $188,534 | $530,297 | ▲ $341,763 |
| Total Net Assets Fund Balance | $2,972,712 | $4,253,232 | ▲ $1,280,520 |
| Total Liabilities and Net Assets / Fund Balance | $2,997,835 | $4,273,361 | ▲ $1,275,526 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Land | $1,188,386 | - | $1,188,386 |
| Equipment | $9,852 | $42,876 | $52,728 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $2,485,082 | - | ▲ $198,827 | $319,226 | $2,364,683 |
| 2023 | $2,234,722 | - | ▲ $250,360 | - | $2,485,082 |
| 2022 | $2,555,241 | - | ▼ $320,519 | - | $2,234,722 |
| 2021 | $835,281 | $1,504,138 | ▲ $215,822 | - | $2,555,241 |
| 2020 | $758,671 | $400 | ▲ $76,210 | - | $835,281 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Ann Wasser | Executive Director | FT | $81,671 | $7,818 | $89,489 |
| Name | Title |
|---|---|
| Chris Samuelson | President |
| Michelle Borgialli | Vice President |
| Ben Kimes | Director |
| Catherine Povalitis | Director |
| Cathy Ott | Director |
| Dan Kasten | Director |
| Hans Rupert | Director |
| Linda Sandquist | Director |
| Mark Samuelson | Director |
| Masha Roberts | Director |
| Michael Oliveri | Director |
| Jarid Funderburg | Secretary |
| Jessie Madl | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $566,700 |
| Other Expenses | $264,902 |
| Total Fundraising Expense | $126,953 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $184,779 | $146,037 | $36,758 | $367,574 |
| Fees for Services Other | $5,090 | $64,732 | $64,807 | $134,629 |
| Current Officers, Directors, Trustees, and Key Employees | $44,986 | $35,554 | $8,949 | $89,489 |
| Office Expenses | $26,457 | $39,897 | $3,431 | $69,785 |
| Payroll Taxes | $26,243 | $20,740 | $5,220 | $52,203 |
| Other Employee Benefits | $24,613 | $19,453 | $4,896 | $48,962 |
| Fees for Service Investment Mgmnt Fees | - | $22,464 | - | $22,464 |
| Other Expenses | $8,015 | $12,086 | $1,164 | $21,265 |
| Insurance | - | $10,885 | - | $10,885 |
| Pension Plan Contributions | $4,259 | $3,366 | $847 | $8,472 |
| Depreciation Depletion | $3,524 | $1,469 | $881 | $5,874 |
| Total Functional Expenses | $327,966 | $376,683 | $126,953 | $831,602 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $882,347 |
| Total Expenses per Form 990 | $831,602 |
| Expenses per Audited Statements | $809,138 |
| Expenses Not Reported on Form 990 | $73,209 |
| Expenses Not Reported on Financial Statements | $22,464 |
| Line Item | Amount |
|---|---|
| Fundraising Direct Expenses | $10,371 |
| Fundraising Gross Income | $7,256 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Golden Hour in the Grove | $46,077 | $7,256 | $3,053 | $4,203 |
| Total Events | $46,077 | $7,256 | $10,371 | $-3,115 |
“A past president role was added to the board of directors”
“Action recommended by committees must be approved by the board of directors.”
“The board receives summary and comments of auditing firm and acts on its recommendations.”
“The board members complete an annual disclosure and it is reviewed periodically.”
“The severson dells board of directors determined my compensation using the northern illinois center for nonprofit excellence bi-annual salary survey and time in the position.”
“The stated documents are available to the public upon request.”
“Other professional fees: program service expenses 5,090. Management and general expenses 64,732. Fundraising expenses 64,807. Total expenses 134,629.”
“The organization's spending policy allows for maximum distributions of 4% of principal annually to fund education programs.”
“Sdef qualifies for tax-exempt status under section 501(c)(3) of the internal revenue code as other than a private foundation. Sdef evaluates its uncertain tax provisions on an annual basis, and there have been no recorded uncertain tax provisions in 2024 or 2023. Therefore, no provision or liability for income taxes has been included in the financial statements. Sdef files various federal or state non-profit tax returns. Sdef is no longer subject to u.s. Federal or state examinations by tax authorities for tax years prior to 2021.”
“Fundraising special event expenses 3,645.”
“Fundraising special event expenses 3,645.”
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 | 16128 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 14011 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | HANDS-ON NATURE EDUCATION FOR ALL AGES |
| IRS990/AllOtherContributionsAmt | 0 | 1194045 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | LAURA SJOQUIST |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8153352915 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 8786 MONTAGUE ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ROCKFORD |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 61102 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 424908 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 553562 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 1 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 8949 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 35554 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 44986 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 89489 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContriRptFundraisingEventAmt | 0 | 38821 |
| IRS990/CostOfGoodsSoldAmt | 0 | 1578 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1768990 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 101329 |
| IRS990/CYOtherExpensesAmt | 0 | 264902 |
| IRS990/CYOtherRevenueAmt | 0 | 30565 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 91277 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1160559 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 566700 |
| IRS990/CYTotalExpensesAmt | 0 | 831602 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 126953 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1992161 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 8995 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 6118 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 881 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 1469 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 3524 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 5874 |
| IRS990/Desc | 0 | SEVERSON DELLS EDUCATIONAL FOUNDATION PROMOTES NATURE PRESERVATION AND EDUCATION PROGRAMS BY PROVIDING FUNDING FOR THE OPERATION OF THE SEVERSON DELLS NATURE CENTER.SEVERSON DELLS ENGAGED 3,378 STUDENTS IN SCHOOL FIELD TRIP PROGRAMS EITHER AT THEIR SCHOOL SITE OR AT SEVERSON DELLS NATURE CENTER. SEVERSON DELLS ENGAGED 6,092 GUESTS THROUGH PUBLIC PROGRAMS AT THE NATURE CENTER THROUGH A SERIES OF GUIDED HIKES, CITIZEN SCIENCE, LECTURES, CAMPS, MUSIC AND READING GROUPS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 188534 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 530297 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 8 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 327966 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 64807 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 64732 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 5090 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 134629 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 22464 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 22464 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| 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 | 40.00 |
| 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 |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| 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 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 7818 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | CHRIS SAMUELSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MICHELLE BORGIALLI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JARID FUNDERBURG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JESSIE MADL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MASHA ROBERTS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | HANS RUPERT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | CATHY OTT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | DAN KASTEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | BEN KIMES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MICHAEL OLIVERI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | CATHERINE POVALITIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | LINDA SANDQUIST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MARK SAMUELSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ANN WASSER |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 81671 |
| 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/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1976 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 38821 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 10371 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 7256 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GovernmentGrantsAmt | 0 | 510252 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 513277 |
| IRS990/GrossReceiptsAmt | 0 | 2517387 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 11581 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 10885 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 10885 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 25054 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 20170 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 101329 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 101329 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 2485082 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 2364683 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 42876 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 14106 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1198238 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1241114 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 513277 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 25872 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 0 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO PRESERVE THE NATURAL ENVIRONMENT AND TO PROVIDE FACILITIES AND PROGRAMS TO EDUCATE THE GENERAL PUBLIC ABOUT THE NATURAL ENVIRONMENT. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2972712 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 4253232 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -3115 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -3115 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 10003 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 10003 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 119961 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2784178 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3722935 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 3431 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 39897 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 26457 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 69785 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 4896 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 19453 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 24613 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 48962 |
| IRS990/OtherExpensesGrp/Desc | 0 | OTHER PROGRAM EXPENSES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1164 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 12086 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 8015 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 21265 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 23677 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 23677 |
| IRS990/OtherRevenueTotalAmt | 0 | 23677 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 36758 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 146037 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 184779 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 367574 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 5220 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 20740 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 26243 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 52203 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 847 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3366 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 4259 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 8472 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 48685 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 136708 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | ANN WASSER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611710 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 91277 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 91277 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 525849 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 80946 |
| IRS990/PYOtherExpensesAmt | 0 | 215812 |
| IRS990/PYOtherRevenueAmt | 0 | 13688 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 121829 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 179308 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 347192 |
| IRS990/PYTotalExpensesAmt | 0 | 563004 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 742312 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1160559 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 101280 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | MISCELLANEOUS REVENUE - 2020 AMOUNT: $ 7,556. 2021 AMOUNT: $ 14,856. 2022 AMOUNT: $ 5,431. 2023 AMOUNT: $ 9,045. 2024 AMOUNT: $ 24,207. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME: |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 1780295 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 525849 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 456037 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 646388 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1661007 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 5069576 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearAmt | 0 | 34080 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus1YearAmt | 0 | 34080 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 34080 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 34080 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 34080 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 170400 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 101329 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 80946 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 77083 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 90563 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 14528 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 364449 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 410601 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearAmt | 0 | 24207 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 9045 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 5431 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 14856 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 7556 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 61095 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.67330 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.56650 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 3814596 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 1425380 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 1814375 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 559929 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 490117 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 680468 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1695087 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 5239976 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 5665520 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.96380 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2485082 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 2364683 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 198827 |
| IRS990ScheduleD/CYEndwmtFundGrp/OtherExpendituresAmt | 0 | 319226 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2234722 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2485082 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 250360 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2555241 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2234722 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -320519 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 835281 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/ContributionsAmt | 0 | 1504138 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2555241 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 215822 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 758671 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/ContributionsAmt | 0 | 400 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 835281 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 76210 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 69564 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 69564 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 1 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 9852 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 42876 |
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Displayed year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.