The employer of two men killed by sewer gases on a job site in Kennebunkport last month said Thursday he will likely challenge proposed federal safety fines.

“If a fine could bring them back, we certainly would do that,” said Tim Stevens, owner of Stevens Electric & Pump Service of Monmouth. “It’s not the money so much. I just don’t want people to think that we’re a careless company, and I certainly don’t want people to think we don’t have the equipment on the job site.”

Fifty-eight-year-old Winfield Studley of Windsor and 70-year-old Richard Kemp of Monmouth died from inhalation of hydrogen sulfide, a sewer gas, while working on a pump inside a sewer tank at the Lodge at Turbats Creek, a Kennebunkport motel.

The Occupational Safety and Health Administration has proposed a total of $16,800 in fines and cited the employer for four safety violations, including failure to ventilate the area where the men were working and failing to test the air quality before and during the work. OSHA also said the workers were not using harnesses designed to help them escape the tank in case of such an emergency.

Karen Billups, assistant area director at OSHA’s Augusta office, said the agency could not provide details of its investigation until after the company responds to citations.

The company has until Nov. 4 to contest the penalties or pay the fines.

Stevens said all of the required ventilation, monitoring and safety equipment was on the truck at the job site, and that all of the company’s employees had received refresher training on safety practices two weeks before the accident.

“I am not trying to say anything bad or negative about my employees, because they were my friends,” Stevens said. “They chose not to use the equipment and we don’t know why.”

The experienced workers were both found inside the below-ground tank, which was accessed through a manhole and was about four feet high, six feet long and five feet wide. They had been trying to fix a pump and had been delayed because they needed different parts.

Studley’s family members could not be reached Thursday to respond to the OSHA citations.

Kemp’s widow, Charlotte Kemp, said she doesn’t blame the company. Her son and two grandsons still work for Stevens.

“How can you blame the people he worked for if they gave him all the tools and he didn’t use them?” she said.

Charlotte Kemp said her husband was careful and told her about all the training he got. She thinks the men got careless at the wrong moment, and perhaps went down into the tank to try a quick adjustment. It’s also possible, she said, that one of the men was overcome and the other went in to help.

“Every Wednesday they would have a safety meeting. But you know how it is, you get complacent. Everybody does,” she said.

Richard and Charlotte Kemp had celebrated their 49th wedding anniversary on Sept. 22, five days before he died. He had turned 70 on Sept. 13, but kept working because he loved it, his wife said.

“I had been after him to cut back,” she said.

Charlotte Kemp said the small company that employed her husband is like a second family and Tim Stevens, the owner, was devastated by her husband’s death, too.

Stevens said the company has again emphasized precautions with its employees, but it’s not possible for him to supervise every work site all the time. He said he plans to meet with OSHA officials in the coming days to discuss the citations. The company has to pay or contest the fines by Nov. 8, and Stevens said he expects to challenge them.

“It’s not the amount of fines. It’s that they’re holding us responsible,” he said.