Procedurally Generated UVs Seams

I have procedurally generated terrain and I am trying to map the uvs to a texture. My texture is 512x512 and each sub texture is 32x32. When i mapped it I get awful seams (to test I have it mapped to 0 for the lowest and 1.0f/16.0f for the highest). I have tried adding 0.004f padding and it helps but the further away from the camera it is the more it bleeds to other nearby colors.