Shopping basket > Review order Currently in your basket Before proceeding to checkout you will need you to either login or create an account. Your items will remain in your basket. USDItem TotalUsing Digital Technologies in Capital Planning: Parker Water & Sanitation District's Water Supply Capital Planning Process (17 words) $11.50RemoveBest Practices in Utility Communications: Tips and Tricks from the Pros (12 words) $11.50RemoveDetermining the best Approaches and Field Tools for Pressure Pipes Conditon Assessment (240 words) $11.50RemoveAccurately Modeling the Effect of Dissolved Oxygen on Nitrification (252 words) $11.50RemoveNet total: $46.00VAT: $0.00Gross total: $46.00 Payment info When you click the checkout button, you will be redirected to a secure Paypal page where you can either pay using an existing Paypal account, or pay by card without a Paypal account. Continue shopping We access Visa, Mastercard, Maestro, American Express all through Paypal.