? Who: Vancouver City Council.? What: Public hearing on an ordinance to restrict collective medical marijuana gardens to areas zoned for heavy or light industry.? When: 7 p.m. Dec. 3.? Where: City Hall, 415 W. 6th Street.The Vancouver City Council tentatively agreed last week to consider restricting collective medical marijuana gardens to areas zoned for heavy and light industry.The council will do a first reading of the ordinance Monday and can send it on to a public hearing, 7 p.m. Dec. 3 at City Hall, 415 W. Sixth St.During a workshop on Nov. 19, councilors asked why the proposed ordinance was so restrictive. In addition to being in heavy or light industrial areas, gardens would have to be at least 1,000 feet from schools, community centers, public parks, licensed day-care facilities and other collective gardens.As one councilor asked, “Are there any spaces left?”Heavy industrial and light industrial zones include areas such as the Port of Vancouver, Columbia Business Center and Columbia Tech business park.Community and Economic Development Director Chad Eiken said he felt the ordinance struck a balance between allowing them everywhere and not allowing them anywhere, approaches taken by other jurisdictions in the state with mixed results.Councilors asked City Attorney Ted Gathe how the approval of Initiative 502 will affect medical marijuana use, and he said that remains to be seen.I-502 addressed recreational use, Gathe said, as it decriminalized the possession of up to 1 ounce of marijuana for adults 21 and older. The law changes Dec. 6, but the state has a year to establish guidelines for growing, processing and selling it. The state has also been waiting to see if the federal government plans to intervene.