It may be too late to vote in other cities, but ballots are still being accepted in Compton for a measure that would restore maintenance funds for the city’s 12 parks. Owners of residential, commercial and industrial property in Compton are being asked to contribute $33.23 a year toward creation of a park maintenance district. The tax rate would replace about $650,000 in landscaping funds that were lost in November with the passage of Proposition 218, which required that such levies be put before voters. City officials say that without the landscaping money, maintenance work would be scaled back at all city parks, including an 18-acre recreation area now under construction. Ballots were mailed last month to 19,500 property owners, and will be accepted through June 30 by mail or hand-delivery to City Hall. A simple majority is needed for approval.