RedactedNarrative: On 05/27/22 at approximately 2049 hours I responded reference a vessel that was sinking.  Upon arrival I located the vessel and was completely submerged.  No occupants were on scene at the time and the owner was later contacted via telephone.  He advised he forgot to secure the plug on the vessel and caused it to become submerged.  The vessel appeared to be totaled.  No  injuries were reported and no additional property damage was reported.