Payment Methods

Credit cards - We accept MasterCard, Visa, Discover and Diners Club credit cards. All funds are collected in United States Dollars (USD).

Credit Card Security Code (CVV): to process your credit card purchase we require your cardholder's name, card number, card expiration date and card security code (CVV). The security code is a three-digit number on the back of your credit card, immediately following your main card number.

Check (order requests) - We accept your check or money order by mail to The Groundwater Foundation, 3201 Pioneers Blvd. Suite 105, Lincoln, NE 68502.

Government/School/Agency Purchase Orders (order requests) - We accept signed purchase orders from governmental, schools, and other agencies to process sales on account with terms of net due on receipt of invoice. Send your signed purchase order by mail to The Groundwater Foundation, 3201 Pioneers Blvd. Suite 105, Lincoln, NE 68502, or by email to info@groundwater.org.


The Groundwater Catalog shopping cart offers the security of 128-bit Secure Sockets Layer (SSL) technology for secure Internet Protocol (IP) transactions. Payment service is provided through PaymentSpring which utilizes encryption hardware and software, high security protocols to protect customer information, and compliance with the Payment Card Industry (PCI) Data Security Standard.

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