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Shadetree Partnership Inc

  • Irvine, CA
  • Tax-exempt since July 1997
  • EIN: 33-0760626

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Environmental Quality, Protection and Beautification / Botanical, Horticultural, and Landscape Services (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.9k (2023)

Expenses
$3.17k (2023)

Total Assets
$128 (2023)

Total Liabilities
$0 (2023)

Source: Form 990 tax filings from 2011 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,903
Expenses
$3,169
Net Income
-$1,266
Net Assets
$128
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,850
97.2%
Program Services $0
Investment Income $53
2.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $128
Total Liabilities $0
Net Assets $128
Compensation
Key Employees and Officers Compensation Related Other
Paul Cook (Director) $0 $410,282 $49,997
Jenny Roney (Director) $0 $0 $0
Ian Swift (Director) $0 $163,508 $24,295
Leslie Bonkowski (Director / Secretary) $0 $167,997 $22,840
Thomas Bonkowski (Director / Treasurer) $0 $151,107 $22,232
Mary Aileen Matheis (President) $0 $0 $0
Matt Rayl (Vice President) $0 $0 $0
Greg Brooks (Director) $0 $0 $0
Claire Hervey Collins (Attorney) $0 $0 $0
Paul Weghorst (Executive Director, Water) $0 $301,128 $50,970
Kevin Burton (Executive Director, Techni) $0 $329,901 $48,579
Wendy Chambers (Executive Director, Operat) $0 $269,338 $47,461
Cheryl Clary (Executive Director, Financ) $0 $290,089 $34,840
Robert Jacobson (Treasurer) $0 $266,193 $41,326
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Document Links

990
Filed on March 14, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,464
Expenses
$4,500
Net Income
-$36
Net Assets
$1,394
Notable Sources of Revenue Percent of Total Revenue
Contributions $4,440
99.5%
Program Services $0
Investment Income $24
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,394
Total Liabilities $0
Net Assets $1,394
Compensation
Key Employees and Officers Compensation Related Other
Paul Cook (Director) $0 $410,108 $54,358
Jenny Roney (Director) $0 $38,917 $1,316
Ian Swift (Director) $0 $158,294 $22,750
Leslie Bonkowski (Director / Secretary) $0 $156,972 $21,226
Thomas Bonkowski (Director / Treasurer) $0 $146,500 $20,633
Mary Aileen Matheis (President) $0 $1,800 $206
Matt Rayl (Vice President) $0 $0 $0
Kay Phillies (Director) $0 $0 $0
Claire Hervey Collins (Attorney) $0 $0 $0
Paul Weghorst (Executive Director, Water Policy) $0 $292,151 $47,546
Kevin Burton (Executive Director, Technical Services) $0 $289,678 $45,969
Wendy Chambers (Executive Director, Operations) $0 $259,563 $44,928
Cheryl Clary (Executive Director, Finance & Administration) $0 $284,666 $32,713
Fiona Sanchez (Director Of Water Resource) $0 $256,259 $44,147
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Document Links

990
Filed on April 6, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,560
Expenses
$1,580
Net Income
$1,980
Net Assets
$1,430
Notable Sources of Revenue Percent of Total Revenue
Contributions $3,545
99.6%
Program Services $0
Investment Income $15
0.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,430
Total Liabilities $0
Net Assets $1,430
Compensation
Key Employees and Officers Compensation Related Other
Paul Cook (Director) $0 $391,304 $51,088
Jenny Roney (Director) $0 $224,558 $27,256
Ian Swift (Director) $0 $156,156 $21,398
Leslie Bonkowski (Director / Secretary) $0 $144,858 $19,967
Thomas Bonkowski (Director / Treasurer) $0 $138,774 $19,304
Mary Aileen Matheis (President) $0 $32,326 $11,503
Matt Rayl (Vice President) $0 $0 $0
Kay Phillies (Director) $0 $0 $0
Claire Hervey Collins (Attorney) $0 $0 $0
Paul Weghorst (Executive Director, Water) $0 $285,419 $44,772
Cheryl Clary (Executive Director, Finance & Administration) $0 $272,858 $30,749
Kevin Burton (Executive Director, Technical Services) $0 $267,751 $43,170
Beth Beeman (Director Of Public Affairs) $0 $246,852 $27,559
Robert Jacobson (Treasurer) $0 $245,209 $41,582
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Document Links

990
Filed on April 12, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,354
Expenses
$1,304
Net Income
$50
Net Assets
-$550
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,345
99.3%
Program Services $0
Investment Income $9
0.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $0
Total Liabilities $550
Net Assets -$550
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $31,061 $10,893
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Treasurer) $0 $124,739 $17,245
Leslie Bonkowski (Secretary) $0 $145,706 $18,237
Paul Cook (Director) $0 $362,858 $46,675
Jenny Roney (Director) $0 $217,870 $24,083
Ian Swift (Director) $0 $148,140 $19,233
Kay Phillies (Director) $0 $0 $0
Clarie Hervey Collins (Attorney) $0 $0 $0
Cheryl Clary (Executive Director, Finance & Admin) $0 $268,501 $27,803
Paul Weghorst (Executive Director, Water Policy) $0 $274,791 $41,239
Kevin Burton (Executive Director, Technical Svcs) $0 $262,435 $39,996
Robert Jacobson (Director Of Treasury & Risk Mgmt) $0 $241,190 $38,656
Anthony Mossbarger (Director Of Information Services) $0 $236,584 $33,219
+ View more people

Document Links

990
Filed on March 30, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,106
Expenses
$2,093
Net Income
-$987
Net Assets
-$600
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,095
99.0%
Program Services $0
Investment Income $11
1.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $0
Total Liabilities $600
Net Assets -$600
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $28,313 $10,263
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Treasurer) $0 $122,641 $15,896
Leslie Bonkowski (Secretary) $0 $141,226 $16,929
Paul Cook (Director) $0 $355,557 $43,173
Jenny Roney (Director) $0 $213,147 $23,631
Ian Swift (Director) $0 $140,881 $17,646
Kay Phillies (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on April 24, 2020

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,706
Expenses
$2,088
Net Income
-$382
Net Assets
$387
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,692
99.2%
Program Services $0
Investment Income $14
0.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $387
Total Liabilities $0
Net Assets $387
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $30,362 $10,500
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Treasurer) $0 $116,134 $15,762
Leslie Bonkowski (Secretary) $0 $130,557 $16,733
Paul Cook (Director) $0 $319,489 $42,768
Jenny Roney (Director) $0 $201,881 $31,008
Ian Swift (Director) $0 $127,449 $17,051
Kay Phillies (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on March 7, 2019

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$801
Expenses
$4,511
Net Income
-$3,710
Net Assets
$769
Notable Sources of Revenue Percent of Total Revenue
Contributions $770
96.1%
Program Services $0
Investment Income $31
3.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $769
Total Liabilities $0
Net Assets $769
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $29,379 $13,502
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Treasurer) $0 $111,025 $32,732
Leslie Bonkowski (Secretary) $0 $122,263 $34,954
Paul Cook (Director) $0 $284,017 $79,909
Barbara Stoddard (Director) $0 $0 $0
Ian Swift (Director) $0 $116,831 $32,663
Kay Phillies (Director) $0 $0 $0
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Document Links

990
Filed on Feb. 15, 2018

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,822
Expenses
$2,135
Net Income
$687
Net Assets
$4,479
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,798
99.1%
Program Services $0
Investment Income $24
0.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $5,281
Total Liabilities $802
Net Assets $4,479
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $27,620 $11,961
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Treasurer) $0 $99,740 $25,020
Leslie Bonkowski (Secretary) $0 $119,901 $34,415
Paul Cook (Director) $0 $288,650 $79,968
Barbara Stoddard (Director) $0 $0 $0
Ian Swift (Director) $0 $111,702 $31,293
Kay Phillies (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 6, 2017

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,417
Expenses
$3,131
Net Income
-$714
Net Assets
$3,792
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,387
98.8%
Program Services $0
Investment Income $30
1.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $4,594
Total Liabilities $802
Net Assets $3,792
Compensation
Key Employees and Officers Compensation Related Other
Mary Aileen Matheis (President) $0 $24,680 $10,211
Matt Rayl (Vice President) $0 $0 $0
Thomas Bonkowski (Director/Treas.) $0 $100,853 $21,102
Leslie Bonkowski (Director/Sec.) $0 $116,394 $20,314
Paul A Cook (Director) $0 $276,998 $50,969
Barbara Stoddard (Director) $0 $0 $0
Kay Phillies (Director) $0 $0 $0
Ian Swift (Director) $0 $102,755 $18,121
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Document Links

990
Filed on Feb. 4, 2016

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$768
Expenses
$6,452
Net Income
-$5,684
Net Assets
$4,506
Notable Sources of Revenue Percent of Total Revenue
Contributions $739
96.2%
Program Services $0
Investment Income $29
3.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $5,350
Total Liabilities $844
Net Assets $4,506

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,158
Expenses
$3,120
Net Income
-$1,962
Net Assets
$10,190
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,110
95.9%
Program Services $0
Investment Income $48
4.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $10,515
Total Liabilities $325
Net Assets $10,190

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,102
Expenses
$2,969
Net Income
$133
Net Assets
$12,152
Notable Sources of Revenue Percent of Total Revenue
Contributions $3,049
98.3%
Program Services $0
Investment Income $53
1.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $12,477
Total Liabilities $325
Net Assets $12,152

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$587
Expenses
$3,294
Net Income
-$2,707
Net Assets
$12,019
Notable Sources of Revenue Percent of Total Revenue
Contributions $514
87.6%
Program Services $0
Investment Income $73
12.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $12,345
Total Liabilities $326
Net Assets $12,019

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

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Byline

By Andrea Suozzo, Alec Glassford and Ash Ngu, ProPublica, and Brandon Roberts, Special to ProPublica.
Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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