Frustrated stepmom

I am a stepmom of 3 awesome kids and I am so frustrated at their biomom right now. The kids were taken from their mom due to drug use, so according to the custody agreement, the mom has to produce clean drug tests every month. After producing 3, her visitation went from 2 hours a week to every other weekend and Wednesdays. If she fails a test though, visitation goes back to 2 hours a week.

Well she failed a drug test and did not tell my husband (the kids’ dad) about it. We heard from the kids that she had failed and she confirmed it when he asked. However, she’s refusing to give us a copy of the failed test so we could see what she tested positive for. But she’s been able to give us copies of the clean tests before.

No advice or anything needed, just needed to vent. It’s hard to fathom how people can put that stuff in front of their kids, especially after being clean for almost a year, year and a half.