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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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Employees R-M-S Water Supply Corporation Phyllis Koster

Phyllis Koster

Officer

Treasurer at R-M-S Water Supply Corporation

Fiscal year ended December 31, 2020. Published on January 24, 2026.

$0

2020

Total compensation

Phyllis Koster has been listed as an employee of R-M-S Water Supply Corporation in Form 990 filings since fiscal year 2017.

Annual compensation details

$0

Treasurer

2020

$0

Treasurer

2019

$0

Treasurer

2018

$0

Treasurer

2017

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Revisions to this profile

January 24, 2026:

2020 R-M-S Water Supply Corporation 990 published

January 24, 2026:

2019 R-M-S Water Supply Corporation 990 published

January 24, 2026:

2018 R-M-S Water Supply Corporation 990 published

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2020

Other employees at R-M-S Water Supply Corporation

David Wren

President

$0