School Administrator Monica Sanchez says on Tuesday, Nye County Child Protective Services came to the school in response to child abuse claims but she says they left with no evidence.
Sanchez says claims of child abuse at the boarding school are false and there is no child abuse going on.
However, on Feb. 1, the Nye County Sheriff's Department says the investigation began after allegations were reported that staff was using excessive force on juveniles.
A former student claims he was assaulted by 29-year-old teacher Caleb Hill, described how he was assaulted and slammed by Hill multiple times. He also claims being picked up and thrown to the floor.
Nye County Sheriff's Deputies served a search warrant with Child and Family Services.
During interviews, detectives received numerous complaints from students on levels of force from Hill.
Incidents identified of staff getting physical with students on numerous occasions.
Hill acknowledged the physical activity was against school policy. He was arrested and charged with child abuse.
Students also claimed they had injuries, and broken bones, mainly toes.
They claim they were refused medical care.
Reports were also given that water at the facility is contaminated with arsenic and other harmful substances.
During the interviews, multiple students reported rashes developed on their skin, believing it is from showering in contaminated water.
When medical personnel arrived at the academy, they revealed multiple injuries and doctors determined rashes were linked to contaminated water.
According to Nye County Investigators, the water tested has arsenic levels over three times the normal drinking limit. Officials began working at the beginning of last year to get levels down.
Northwest Academy has about 30 to 40 at-risk teenage students and Nye County Sheriff's Department is asking parents of students to come forward with any other details.