To answer your actual question:
I spoke to the BLM camp host at the Bouse camp area at Plomosa and Highway 95, and asked him about this exact issue. He told me that all the BLM is really concerned about is people creating large puddles of water. He said if the water doesn't puddle up (for more than a few minutes) that they don't really care. He also said that you aren't allowed to dump a gray-water tank, both because of the puddling issue and because bacteria builds up in the tanks. He did not need to mention that dumping black-water is out as well. He specifically suggested to me that it is OK to just run a hose straight to the ground from inside your RV and dump gray-water straight from your sink to the ground, as long as there isn't lots of food in it (which would attract insects into your RV anyway). The point is that any time you empty your sink it will soak into the ground in just a few minutes... so you are good.
THEN he specifically brought up that he just goes pee outside, right around his RV. So, if you go up to get your camping permit and that guy is not right out front, do not go around back looking for him. You might find more than you bargained for.
Naturally, your mileage may vary and other camp hosts may apply the rules differently. Mostly I think, if you don't create a problem it won't be a problem.
I spoke to the BLM camp host at the Bouse camp area at Plomosa and Highway 95, and asked him about this exact issue. He told me that all the BLM is really concerned about is people creating large puddles of water. He said if the water doesn't puddle up (for more than a few minutes) that they don't really care. He also said that you aren't allowed to dump a gray-water tank, both because of the puddling issue and because bacteria builds up in the tanks. He did not need to mention that dumping black-water is out as well. He specifically suggested to me that it is OK to just run a hose straight to the ground from inside your RV and dump gray-water straight from your sink to the ground, as long as there isn't lots of food in it (which would attract insects into your RV anyway). The point is that any time you empty your sink it will soak into the ground in just a few minutes... so you are good.
THEN he specifically brought up that he just goes pee outside, right around his RV. So, if you go up to get your camping permit and that guy is not right out front, do not go around back looking for him. You might find more than you bargained for.
Naturally, your mileage may vary and other camp hosts may apply the rules differently. Mostly I think, if you don't create a problem it won't be a problem.