Alternative channels
Mail, text, and in-person payment instructions
Pay by text
GCWW does not publish a direct utility text-to-pay keyword or standalone SMS bill-payment enrollment on its current payment pages. PromisePay payment-plan participants can opt into text reminders and notifications after enrolling at https://gcww.promise-pay.com; those reminders supplement, rather than replace, the GCWW portal and payment process.
Mail-in address
Greater Cincinnati Water Works, P.O. Box 740689, Cincinnati, OH 45274-0689. Mail a check or money order with the payment stub/account number; mailed checks are one of the current no-transaction-fee payment options, and cash should not be mailed.
Counters, drop boxes, and office hours
GCWW's main customer-service location is 4747 Spring Grove Avenue, Cincinnati, OH 45232; customer-service hours are Monday-Friday 7:30 a.m.-4:30 p.m. A drive-up drop box in the front parking lot accepts envelopes with non-cash payments. Customers may also use the portal's Pay Now/cash option to generate an account barcode and pay cash at participating local retailers; the official pages direct customers to the portal retailer map rather than publishing one fixed store list. The GCWW office phone is (513) 591-7700, and no current counter schedule for cash/card walk-in payments was separately published.