A celebration of Lauren Biddle's life was held in her hometown of Florida, US.

A man has pleaded not guilty to five charges following his arrest more than two months after a rising United States polo star was found unresponsive in a Christchurch spa pool, and later died.

Lauren Mikaila Biddle, 22, had been in New Zealand only 10 days before she died in the seaside suburb of Clifton, near Sumner, just before 1am on on October 22.

Engineer Joe McGirr, 37, was arrested on Friday and charged with two charges of supplying a class B drug, impeding rescue, perverting the course of justice, and cultivating cannabis.

SUPPLIED Tommy Biddle and his daughter, Lauren.

Stuff revealed Biddle visited the five-bedroom home on Spinnaker Ln, owned by McGirr, to have a spa with some friends. It is understood some of the group spent the evening drinking alcohol and consuming drugs.

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It is unclear when and where Biddle died. By the time an ambulance arrived, a friend was performing CPR on her on nearby Clifton Tce.

STUFF Structural engineer Joe McGirr owns the five-bedroom home on Spinnaker Ln where Biddle died.

McGirr pleaded not guilty to all five charges when he appeared in the Christchurch District Court.

McGirr is expected to appear in court again on March 27.

Biddle's father, Tommy Biddle, said on Friday it had been a "tough" festive season for the family but they were "trying to keep moving forward".

JOSEPH JOHNSON/STUFF The Spinnaker Ln home, pictured, was cordoned by police for several days.

"I am just hoping that eventually we could get close to what really happened that night."

Police had kept the family informed throughout, Biddle said. "I thank them for their diligence working on this case."

He earlier said a preliminary report showed his daughter had suffered "no physical trauma" when one of her friends found her unresponsive in the spa.

SUPPLIED Biddle, 22, died in unexplained circumstances in Sumner, Christchurch, on May 22.

"There [are] so many questions and really I think there's going to be questions for a long time," Biddle said.

"The only thing I can say right now is from what I understood at least whatever happened was peaceful."

He had not heard of McGirr until after his daughter's death, and had not spoken to him.

Following his daughter's death, he spoke to several of her friends who said she was not into drugs.

McGirr is the director of JDM Consulting, which specialises in structural engineering design. He appears to have deleted his Facebook page and taken down his company's website since Biddle's death.