RedactedNarrative: On July 20, 2017, Lake Mead Interagency Communications Center (LMICC) received a report of a vessel sinking at the Callville Marina at approximately 0640.  I received a phone call at 0654 from the LMICC of the vessel sinking. Conditions that morning were light winds, and sunny. 
  I arrived on scene at approximately 0701. I observed a house boat with its stern (rear) of the vessel fully submersed in the water and the vessel leaning towards its starboard side (right).  The vessel was identified, a 1985 House boat. I observed fuel and oil floating towards courtesy dock and out in the middle of the channel of the launch ramp. 
  I contacted Calllville Marina Staff regarding the vessel sinking in the marina and they indicated they were gathering a plan to bring the vessel up to take out of the water.  Callville Marina staff informed me that Vessel Assist towed in the vessel the night prior. Callville staff indicated they were going to set up boom sticks to gather the fuel. I closed the launch ramp area and requested additional officers to stop vessels from entering and exiting the launch ramp to contain the fuels in the water into one area. United States Park Ranger  arrived on scene with Vessel 41 to close off the launch ramp area. 
  United States Supervisory Park Ranger arrived on scene and took command of the incident at approximately 0811.  Callville Marina staffs were attempting to pump out the water in the vessel and bring it afloat. United States Supervisory Park Ranger arrived on scene at approximately 0912. At 0933, there was still no fuel containment on scene.  At 0956, Callville Marina staff started containment efforts for the fuel. 
  At approximately 1035, the owner of the vessel arrived on scene. I had owner fill out a witness statement as to what had happen. 
  At 1110, Callivlle Marina staff were able to retrieve the vessel and put it on a trailer to be hulled out of the marina.  The launch ramp was reopened at this time to the public. The launch ramp was closed for approximately four (4) hours. During that time, we turned 23 vessels away.  
  Upon my investigation, there was a fuel spill and clean up needed but no citations were issued due to the witness statements are contradiction each other and no fault can be placed at this time as it appears a miscommunication occurred. Unknown amount of damaged as it appears to be a total loss. 
  END OF REPORT