A request for a 0.25 percent sales tax for mental health services and addiction treatment qualified for the November ballot in Denver Tuesday.

The measure is expected to raise $45 million to improve “the quality, availability and affordability of community-based mental health and addiction care,” said Caring 4 Denver, the group backing the proposal.

RELATED: Backers of Denver’s mental-health tax measure say they’ll file plenty of signatures

To get on the ballot, Caring 4 Denver needed 4,726 verified signatures from registered voters in Denver. The campaign turned in 10, 378. Denver Elections found that 7,029 were qualified petitioners.

Rep. Leslie Herod, who is running unopposed for re-election in her Denver district, is leading the Caring 4 Colorado effort.

“Caring 4 Denver Campaign will create innovative community-based mental health and addiction services for everyone in Denver,” she said in a statement.

The organization said Tuesday it has research from earlier this year that indicates 79 percent of likely Denver voters could support it.

“It is important to show the positive stories of people in recovery more than the negative side of addiction,” stated Gabrielle Rodriguez, who is featured in Caring 4 Denver ‘s #PowerTo campaign.

“Caring 4 Denver will make a difference for so many people and their families right here in Denver.”