Pleasanton Public information Officer Joanne Hall said the event is usually held earlier in the month.
"It's a little later this year (because) there was quite a bit going on at the Fairgrounds," Hall said, noting that both the Boy Scout Jamboree and Tea Party had events last week.
The recycling event runs Friday through Sunday, and Hall said it generally draws about 2,000 cars. Hours are 9 a.m.-3 p.m. Friday and Saturday; and 9 a.m.-1 p.m. Sunday.
Hall said almost any type of electronic equipment from televisions to toner cartridges to fluorescent bulbs and batteries will be taken, and there's no limit on the number of items that will be accepted. For more information, call toll-free (866) 335-3373.
"On Saturday only, the Dublin San Ramon Service District (DSRSD) is going to be co-hosting with us an unused and prescription drug drop off, so people can clean our their medicine cabinets," Hall said. She emphasized that people should not flush drugs.
DSRSD Community Affairs Specialist Renee Olsen wants to be clear that unused and expired drugs will be accepted on Saturday only, because that's the day police will be on hand.
"We will have law enforcement there so we can accept controlled substances," Olsen said. "Last year we had some people who came on Friday and were disappointed and came on Sunday and were disappointed."
Saturday is also the only day mercury thermometers will be accepted.
Olsen said the thermometers should be intact, not leaking, and in a sealed container or plastic bag.