KANSAS CITY, Kan. (AP) — Four rides remain closed more than a month after at a Kansas water park where a 10-year-old boy was decapitated opened for the season.

The Kansas City Star reports permits for four rides at the Schlitterbahn water park in Kansas City, Kansas, expired July 1 and it’s unclear when they will reopen. The four rides — Soaring Eagle, Boogie Bahn, Whirlpool and Wolfpack — were among 11 rides that state regulators decided in May were not complying with state law. The other seven rides are now operating.

Schlitterbahn spokeswoman Winter Prosapio said in a statement the company is waiting for a follow-up inspection of the closed rides.

The audit occurred after 10-year-old Caleb Schwab was decapitated in August 2016 while riding the 17-story Verruckt waterslide.