- Revenue 2024
- $26,592,726
- Expenses 2024
- $23,806,034
Program services were 85.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.
As filed
- Subsection
- 03
- NTEE code
- C340
- Classification
- 1200
- Street
- 1031 PALMERS MILL RD
These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).
Officers and directors · 2024
As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.
-
Andrew I Vandenbrul
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Ann Loftus
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Barbara B Aronson
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Gail M Harrity
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Jane G Pepper
Vice Chairperson
- Total calculated
- $0
- Hours/week
- 1
-
Jason Duckworth
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Jeffrey J Idler
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Lloyd H Brown
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Paulina Jerez
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Peter O Hausmann
Chairman Emeritus
- Total calculated
- $0
- Hours/week
- 1
-
Rayenne A Chen
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Regina Hairston
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Robert K Stetson
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Stephan K Pahides
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Susan P Mucciarone
Chairperson
- Total calculated
- $0
- Hours/week
- 1
-
William Y Webb
Trustee
- Total calculated
- $0
- Hours/week
- 1
-
Ann C Hausmann
Vice President
- Total calculated
- $203,661
- From this org
- $182,699
- From related orgs
- $0
- Other
- $20,962
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $182,699
- Bonus
- $0
- Other
- $0
- Deferred
- $14,067
- Nontaxable benefits
- $6,895
- Filer's total
- $203,661
-
Gary Gimbert
Vice President
- Total calculated
- $171,134
- From this org
- $143,662
- From related orgs
- $0
- Other
- $27,472
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $143,662
- Bonus
- $0
- Other
- $0
- Deferred
- $11,137
- Nontaxable benefits
- $16,335
- Filer's total
- $171,134
-
Karen Wallace
Vice President
- Total calculated
- $196,549
- From this org
- $180,027
- From related orgs
- $0
- Other
- $16,522
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $180,027
- Bonus
- $0
- Other
- $0
- Deferred
- $9,226
- Nontaxable benefits
- $7,296
- Filer's total
- $196,549
-
Kelly Herrenkohl
Vice President
- Total calculated
- $162,550
- From this org
- $136,653
- From related orgs
- $0
- Other
- $25,897
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $136,653
- Bonus
- $0
- Other
- $0
- Deferred
- $7,195
- Nontaxable benefits
- $18,702
- Filer's total
- $162,550
-
Oliver P Bass
President
- Total calculated
- $266,305
- From this org
- $242,303
- From related orgs
- $0
- Other
- $24,002
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $242,303
- Bonus
- $0
- Other
- $0
- Deferred
- $17,793
- Nontaxable benefits
- $6,209
- Filer's total
- $266,305
-
Tiffany Sowers
Vice President
- Total calculated
- $164,260
- From this org
- $143,282
- From related orgs
- $0
- Other
- $20,978
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $143,282
- Bonus
- $0
- Other
- $0
- Deferred
- $7,445
- Nontaxable benefits
- $13,533
- Filer's total
- $164,260
-
Todd Sampsell
Vice President
- Total calculated
- $157,944
- From this org
- $137,263
- From related orgs
- $0
- Other
- $20,681
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $137,263
- Bonus
- $0
- Other
- $0
- Deferred
- $7,195
- Nontaxable benefits
- $13,486
- Filer's total
- $157,944
-
Tamara J Lorah
Assistant Vice President and Controller
- Total calculated
- $156,301
- From this org
- $132,003
- From related orgs
- $0
- Other
- $24,298
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $132,003
- Bonus
- $0
- Other
- $0
- Deferred
- $10,370
- Nontaxable benefits
- $13,928
- Filer's total
- $156,301
-
Jonathan Stefferud
Senior Advisor
- Total calculated
- $119,256
- From this org
- $106,835
- From related orgs
- $0
- Other
- $12,421
- Hours/week
- 40
The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.
Filings
-
2024
- Revenue
- $26,592,726
- Expenses
- $23,806,034
- Contributions
- $23,391,141
- Grants paid
- $4,631,096
-
2023
- Revenue
- $22,918,449
- Expenses
- $19,825,983
- Contributions
- $19,833,095
- Grants paid
- $1,467,500
-
2022
- Revenue
- $25,509,870
- Expenses
- $19,787,667
- Contributions
- $15,949,292
- Grants paid
- $2,482,898
The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.
Other returns filed
-
2024 · 990-T
- Revenue
- not reported
- Expenses
- not reported
- Assets (EOY)
- not reported
-
2023 · 990-T
- Revenue
- not reported
- Expenses
- not reported
- Assets (EOY)
- not reported
-
2022 · 990-T
- Revenue
- not reported
- Expenses
- not reported
- Assets (EOY)
- not reported
Nonprofiteer parses the Form 990 only. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.
Grants made
-
WESTTOWN TOWNSHIP
$550,000
2024 Provides monetary assistance to help support the operations of other conservation efforts.
-
CHESTER HEIGHTS BOROUGH
$500,000
2024 Provides monetary assistance to help support the operations of other conservation efforts.
-
PA DCNR
$164,335
2023 Provides monetary assistance to help support the operations of other conservation efforts.
-
PECO Open Space
$160,000
2023 Provides monetary assistance to help support the operations of other conservation efforts.
-
PECO Open Space
$150,000
2022 Provides monetary assistance to help support the operations of other conservation efforts.
-
PA DCNR
$82,729
2022 Provides monetary assistance to help support the operations of other conservation efforts.
-
2023 Provides monetary assistance to help support the operations of other conservation efforts.
-
2022 Provides monetary assistance to help support the operations of other conservation efforts.
-
$58,335
2023 Provides monetary assistance to help support the operations of other conservation efforts.
-
Delta Borough
$50,000
2024 Provides monetary assistance to help support the operations of other conservation efforts.
The 10 largest by cash amount. The API serves every itemized grant.
Grants received
-
OPEN SPACE INSTITUTE LAND TRUST INC
$1,395,526
2024 DELAWARE RIVER WATERSHED PROTECTION
-
$1,340,434
2024 OPERATIONAL
-
$1,327,749
2022 OPERATIONAL
-
$1,325,116
2023 OPERATIONAL
-
$1,050,000
2024 UNRESTRICTED SUPPORT , CAPITAL COST FOR PURCHASE OF CREBILLY FARMS TRACT
-
2022 DELAWARE RIVER WATERSHED
-
2023 FOR RECIPIENT'S EXEMPT PURPOSE
-
OPEN SPACE INSTITUTE LAND TRUST INC
$316,428
2022 DELAWARE RIVER WATERSHED AND APPALACHIAN LANDSCAPE PROTECTION
-
$270,464
2025 FOR EXPENSES IN OPERATING GEORGIA FARM, A 340 ACRE SELF CONTAINED WATERSHED ON WHICH THE STROUD WATER RESEARCH CENTER CONDUCTS LONG TERM RESEARCH PROJECTS. THE FOUNDATION'S BOARD REVIEWS AND APPROVES BUDGETS AND RECEIVES REPORTS FROM NATURAL LANDS TRUST STAFF ON ACTUAL EXPENDITURES.
-
$232,303
2022 FOR EXPENSES IN OPERATING GEORGIA FARM, A 340 ACRE SELF CONTAINED WATERSHED ON WHICH THE STROUD WATER RESEARCH CENTER CONDUCTS LONG-TERM RESEARCH PROJECTS. THE FOUNDATION'S BOARD REVIEWS AND APPROVES BUDGETS AND RECEIVES REPORTS FROM NATURAL LANDS TRUST STAFF ON ACTUAL EXPENDITURES.
The 10 largest by cash amount. The API serves every itemized grant.
Related organizations
From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.
Declared on its 2024 return
-
Montgomery County Lands Trust Inc
501(c)(3) · Support conservation efforts of Natural Lands · PA
Declared as related by
-
On its 2025 return
Other IRS files
Auto-Revocation List
Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.
Publication 78
Listed as of 10 September 2026, under deductibility PC.
These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.