If demand for sharpening is great, you may have to leave your knife there up to 48 hours.
Sur La Table is located in South Corona at Dos Lagos Shopping Center just of the 15 fwy at Weirick. Between Calajco Road and Weirick. Just south of the Corona Crossings Shopping Center. Their phone is: (951) 603-0515
Center Hours: Mon-Sat: 10am-8pm Sun: 11am-6pm
I also have a source in Norco that does professional knife sharpening. It is a lot cheaper than $1.00 an inch. At that price a 10" chef knife is $10.00. At Norb's Knife Sharpening it is around $4.00 or so. But getting at least getting two knives sharpened for free is better than nothing at all and continuing to use those dull knives.