A counselor at the Turning Tide methadone clinic in Rockland has been charged with attempting to buy nearly an ounce of cocaine, a case tied to the arrest last month of the clinic’s founder and operator.

Carol Gardiner, 49, of Thorndike was issued a summons July 16 for felony attempted possession of cocaine, according to Maine Drug Enforcement Agency Supervisor James Pease. Gardiner was a counselor at Turning Tide at the time she was charged, Pease said.

Mike Franklin, the program director for Turning Tide, said Aug. 12 that Gardiner is no longer with the clinic. He said he could not discuss the reasons for her departure.

Angel Fuller-McMahan, 42, of Owls Head, the licensed operator and owner of Turning Tide, was arrested July 13 for felony possession of cocaine. Fuller-McMahan was arrested after agents said they observed her buying cocaine in a private parking lot along New County Road. Her car was pulled over by Rockland police and the MDEA.

Agents seized from Fuller-McMahan about an ounce of cocaine hidden in her pants, along with hypodermic needles. The street value of the cocaine was $2,500, according to the MDEA. Fuller-McMahan’s 2000 Ford Escort was also seized during her arrest.

Fuller-McMahan was taken to the Knox County Jail in Rockland and freed on $5,000 unsecured bail. Her court appearance is set for Sept. 29 in Knox County Superior Court.

Gardiner was not with Fuller-McMahan at the time of the clinic owner’s arrest but the investigation led to her, Pease said.

He said Gardiner and Fuller-McMahan had been buying cocaine for several months.

Fuller-McMahan was arrested by the MDEA in 1997 and ultimately pleaded guilty to possessing heroin.

Gardiner — then Carol Jacobs, of Frankfort — was convicted in 1986 for unlawful trafficking in cocaine, according to records at Knox County Superior Court. She was sentenced to one year in jail with all but 75 days suspended and placed on probation for a year.

John Martin, the spokesman for the Maine Department of Health and Human Services, said the agency inspected the operations of the clinic after Fuller-McMahan’s arrest and found the clinic was doing a good job.

“They are still meeting the needs of the 280-plus clients who require daily treatment,” Martin said.

He said the Maine Board of Pharmacy and the federal Drug Enforcement Agency also regulate the methadone clinic. Those two organizations could not be reached for comment the afternoon of Aug. 11.

Franklin said those agencies have also come in and inspected the clinic and found it to be operating properly and meeting the needs of the patients.