During facilities annual flow test and inspection of all site fire hydrants, it was noted that hydrant L9, which resides on the vertex interior nearest the FCE was not fully closing and bleeding a small amount of water. This issue was made worse when an outside group was invited to help troubleshoot the problem and overtightened the stem to the point that it was completely broken. Following this, I (with the assistance of locate) located the service valve and isolated supply of firewater to the hydrant. Given the age of the hydrant, repairing it was cost prohibitive, so a new hydrant was installed. 

It is probably worth mentioning here that the thrust block placed back in ~97' was sizeable. Almost too large for the mini excavator to remove. This came as a big surprise to all involved and should be considered in the future if any hydrant excavation takes place. Also, the as-built location of this hydrants service valve is incorrect. The drawing details the valve being southwest of the hydrant, when it is in fact to the northeast.

E. Otterman R. McCarthy T. Guidry