Donate to California Water Library


California Water Library is a project of Multiplier, a tax-exempt nonprofit 501(c)(3) umbrella organization (tax ID 91-2166435).
“FC*Multiplier” will appear on your credit card statement for this transaction.


Donate by check:

Please make check payable to Multiplier

548 Market Street, PMB 81178

San Francisco, CA 94104

Memo: 'California Water Library'

Become a California Water Library Sponsor!

$5,000 - Gold Sponsor

$2,500 - Silver Sponsor

$1,000 - Bronze Sponsor


Donate by credit card

Choose Your Donation Frequency

Your first Donation will occur on

(Your Donation(s) will end on

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Select an End Date for your Donation(s):

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Select a Start Date for your Donation(s).

(Your Donation(s) will be Ongoing and can be cancelled anytime.)
Please select an start date.

Select a Start Date for your Donation(s).

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Your first Donation will occur on

Please select the total number of Donations you would like to make:

Please select a set number of payments.
Your first Donation will occur on

Please select the total number of Donations you would like to make:

Please select a set number of payments.

Your first Donation will occur on

Please select an start date.

Please select the total number of Donations you would like to make:

Please select a set number of payments.

Your first Donation will occur on

(Your Donation(s) will end after payments.)

Your first Donation will occur on .

Please select an end date.

Your first Donation will occur on .

Select a Start Date for your Donation(s).

(Your Donation(s) will end after payments.)

Please select a start date.

Donation will occur on

(Your Donation(s) will be Ongoing and can be cancelled anytime.)
Or enter your own amount:
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