The department's Sgt. Joe Steinhauer has been named acting police chief.
Spring Lake Village Manager Chris Burns said she was notified of the resignation on Monday through the village attorney.
DeYoung, 47, was last on the job Feb. 14, she said.
Burns said there is no specific incident that sparked the resignation and that she is not aware of any wrongdoing.
“He’s a good guy,” she said.
When asked why DeYoung was leaving, Burns said, “It’s a resignation. I can’t elaborate.” She also declined to comment on the short notice.
Read the village press release on DeYoung's resignation (download the PDF at the bottom of this story).
As of press time, DeYoung did not return messages from the Tribune requesting a statement from him.
The Tribune has asked the village for DeYoung's personnel records through a Freedom of Information Act request.
Burns said once DeYoung’s resignation was received, a separation agreement was negotiated. That agreement was signed late Wednesday afternoon.
Terms of the agreement were not disclosed because both sides signed a confidentiality pact, which was negotiated as part of the settlement agreement, Burns said.
“There’s ramifications if either one of us violate the confidentiality agreement,” she said.
DeYoung signed a Last Chance Agreement in January 2009, following a month-long suspension for an alcohol-related incident with his work vehicle.
When asked Wednesday if he had violated that agreement, Burns replied, “I am not at liberty to say.”
DeYoung had pulled his vehicle over on Leonard Road in Spring Lake Township at 12:30 a.m. Dec. 13, 2008, because his wife had become ill, the now-former police chief said at the time. His car got stuck in the slush.
DeYoung said an acquaintance stopped to give assistance. But when he went to pull the village vehicle out of the slush, the car lurched forward and struck the tow vehicle. The Ottawa County Sheriff’s Department responded when the acquaintance’s insurer told him to contact police.
DeYoung was put on a mandatory unpaid suspension during an investigation into the incident. Then-Village Manager Ryan Cotton said DeYoung received time off work to begin the process of seeking treatment. DeYoung told the Tribune at the time that he was attending counseling for alcohol abuse and was attending Alcoholics Anonymous meetings.
The Last Chance Agreement allowed DeYoung to remain on the job as long as he submitted to possibly weekly alcohol and drug testing. He was also required to submit periodic reports on his treatment.
The incident was turned over to the State Attorney General’s Office for consideration of possible charges. The attorney general’s office assigned it to Allegan County Prosecuting Attorney Fred Anderson, who declined to authorize any charges.
DeYoung, who joined the department in 1988, had been chief for five years at the time of the incident.
DeYoung took on a term as interim village manager from when Cotton left to become Holland's city manager in March 2012 until Burns took over in July 2012.
Shortly after she arrived, the village conducted a survey and the Spring Lake/Ferrysburg Police Department received high marks, Burns said.
“Everybody was pleased with police service, and that was under his (DeYoung’s) leadership," she said. “... He did a lot of really good things in this department. He’s a sharp 'numbers guy' with the budget. He did a good job.”
Burns said the village will not be looking to hire a permanent police chief, as there are potential plans to contract services from the Grand Haven Department of Public Safety or the Ottawa County Sheriff’s Department.
“We’re starting really serious conversations,” she said Wednesday. “(Grand Haven Public Safety Director) Jeff Hawke was here today. We’ve had conversations with the (county) sheriff and undersheriff. ... We’re going to take a look at restructuring, reorganizing and what is the future of the department. We expect that to be done by June 30.
June 30 is the date an intergovernmental agreement between Spring Lake and Ferrysburg expires. The two communities share the costs of running the police department.
Burns said this does not mean there will be a change in the level of police service that the two communities receive.
“We have a strong level of service and that level is going to continue,” she said.
Steinhauer has been working for the Spring Lake/Ferrysburg Police Department since November 1995. He was also the acting chief during DeYoung’s 2008-09 suspension.
The department has nine full-time and five part-time officers, as reported in its 2012 annual report, and a full-time administrative assistant.