Is Texas State Cemetery Using Huge Amounts of Water?

I live on the Eastside of Austin, and most days when I'm riding home, I pass the Texas State Cemetery and notice the bright, healthy green grass flourishing between the gravestones, while houses across the street have dying lawns. The other cemeteries I see around the city have brown grass as dead as their residents, just like most parks and sub-million-dollar homes also have brown, dead grass. Does it seems ridiculous to anybody else that during this hellacious drought, the Texas State Cemetery should use what I assume is an immense amount of water to keep its grounds plush and verdant? I realize this may seem like a disrespectful question to raise. But then again, maybe because I'm not a native Texan, I don't have a deep, unshakable reverence for whatever luminaries of Texas history permanently reside there. Can't they share in the drought like we all do? Just a thought.