The group behind the recall of South Tucson Councilman Ildefonso Green said that even though its petition was recently invalidated, it will not only try again; it also plans to gather signatures to recall Councilwoman Vanessa Mendoza.

The Pima County Recorder’s Office notified the recall committee this week that because of missing dates on the collected signatures, it was required by state law to reject the petition.

Eddie Fass Badilla, who has led the recall effort, blamed a paperwork error for the missing information and said his group was undeterred.

“We have the people. The people are upset at Ildefonso Green and Vanessa Mendoza,” he said. “She’s never there. She caused us to lose $80,000.”

During a council meeting last August, Mayor Paul Diaz ejected Green and Mendoza walked out, breaking the quorum and delaying a sales-tax vote that cost the city an estimated $80,000.

That incident was prompted by an inflammatory letter against Green and his family, signed in the mayor’s name, that circulated in the community as dueling recall efforts against both men heated up.

The dispute between Diaz and Green stems from the Pasadera Behavioral Health Network’s plans to open a drug-treatment facility across the street from Mission View Elementary.

Last week, the city staff informed Pasadera that it would not receive the permit it needed to operate.

Green said he was not worried about the recall and believed he would prevail against the challenge.

Mendoza could not be reached for comment Friday. A recall election for Diaz is scheduled May 19.

Contact reporter Luis F. Carrasco at lcarrasco@tucson.com or 807-8029. On Twitter: @lfcarrasco