A Pleasant Grove man was arraigned Wednesday morning in 4th Circuit Court on felony drug charges.

Robert Dean Phelps, 49, 101 E. Seventh South, is charged with cultivation of marijuana, possession with intent to distribute a controlled substance, drug tax stamp violation, possession of a firearm by a restricted person, all third-degree felonies, and theft of services, a second-degree felony.Circuit Court Judge Patrick E. McGuire set bail for Phelps at $100,000.

Also Wednesday, an arrest warrant on similar charges was issued for Kent E. Nielsen, 48, same address.

Following a five-week investigation, Utah County deputy sheriffs raided Phelps' home Friday night and arrested him. Sgt. Jim Tracy said the home had been dedicated to cultivation of marijuana. More than 300 marijuana plants, in various stages of growth, and a lab for producing hash oil were found in the three-bedroom home, police said. Officers also found approximately 20 pounds of dried marijuana in grocery bags in the front room of the house. Tracy said the dried marijuana was worth about $40,000.

Tracy said the cultivation setup was one of the most sophisticated he had seen. Some of the plants were being grown hydroponically, and a rotating track lighting system, timed to simulate the sun, had been rigged in the ceilings of the bedrooms, he said.

The electricity meter on the home had been altered so that it could be turned on and off, Tracy said.