Russell County Attorney Daniel Krug said that Pam Pertl of Bunker Hill was charged Thursday with misdemeanor marijuana possession, felony distribution of marijuana and felony aggravated endangerment of a child.

The Russell County Sheriff’s Office said in a press release Thursday that deputies were called June 5 after a social worker and state officials reported Pertl and three foster teens in her care tested positive for marijuana. Undersheriff Max Barrett told The Associated Press on Friday that Pertl and two of her foster teens tested positive for marijuana, a third juvenile tested negative and a fourth was not involved. All four juveniles have been placed elsewhere.

The department did not release juveniles’ names or ages, but said they were female teenagers who had been living with Pertl in Bunker Hill, a town of about 100 residents in central Kansas.

Barrett said one of the teens told the social worker that Pertl and the teens also drank milk mixed with bleach to try to mask their urinary drug samples.

“They were trying to use the bleach to be able to clean up their UA,” their urinary analysis samples, Barrett said.

It was unclear Friday if Pertl had a lawyer. Calls to a phone listing under Pertl’s name were not answered Friday.

The sheriff’s department has been aware of Pertl as a longtime foster care provider and has had issues with her before, Barrett said.

“She is a foster mom who we have had a lot of trouble with, and in the last year we’ve had a numerous number of runaways from her home, so it’s a person we’re very familiar with,” Barrett said.

Pertl was released Thursday on $40,000 bond. Her next court appearance is scheduled for July 10.