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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Organizations Underground Service Alert of Southern California

Underground Service Alert of Southern California

Fiscal year ending 2024. Filed on November 14, 2025.

1379 Pico St Suite 101
Corona, California 92881

Underground Service Alert of Southern California (EIN: 33-0063473) has filed an IRS Form 990 between fiscal years 2017 and 2024. In its fiscal year 2024 IRS Form 990 filing, Underground Service Alert of Southern California, a 501(c)(6) business league, reported compensation for 2 out of 37 total employees. Among the employees shown here, the average compensation is $241,365. The highest compensated employee at Underground Service Alert of Southern California is Ann C Diamond with fiscal year 2024 compensation of $248,889.

Revenue, expenses, and employee compensation

Revenue

$6,820,563

Expenses

$7,414,436

Employee compensation

$4,145,132
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Ann C Diamond
President and Treasurer
$248,889
$248,889 No related compNo other comp
James R Schwilk
Vice President and Secretary
$233,841
$233,841 No related compNo other comp

Benchmark Employee Compensation

Non-Employee Board Members

Ana Gennaro
Board Member
Bin Liang
Board Member
Brian Woody Woodworth
Board Member
Bryan Davidson
Board Member
Cameron Valenzula
Board Member
Chris Kenyon
Board Member
Christopher Davy
Board Member
David Dolney
Board Member
Fraser Campbell
Vice Chair
Gilbert Aceves
Chair
John McMahon
Board Member
Michael Lapeaux
Board Member

Mission Statement

TO EXPEDITE THE LOCATION OF UNDERGROUND INSTALLATIONS PRIOR TO THE START OF ANY EXCAVATION OR ANY OTHER WORK THAT MAY AFFECT THE SUBSURFACE OF THE EARTH.

Revisions to this organization profile

November 14, 2025:
2024 Underground Service Alert of Southern California 990 filed
October 21, 2025:
Amended (originally filed November 12, 2024)2023 Underground Service Alert of Southern California 990 filed
November 9, 2023:
2022 Underground Service Alert of Southern California 990 filed

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