Quest:Corrupted Soil

Objectives
Apprentice Mirveda at the East Sanctum in Eversong Woods wants you to collect 8 Tainted Soil Samples.
 * Tainted Soil Sample (8)

Description
This was a fully functional arcane sanctum before Arthas and his army of Scourge decided to plow through it on their way to Silvermoon. Now it's as useful to us as any part of the Dead Scar. The soil is tainted, undead are drawn to it and the energy in the ley lines is completely disrupted. What I want to know,, is whether this taint is reversible or not. I want you to collect soil samples from this area so I can study them. Perhaps with time we can set things back to normal.

Progress
Are you done collecting the samples I asked for, ?

Completion
Excellent. I will cast an augmentation enchantment on the samples so I can more clearly analyze the taint on the soil.

Reward
You will receive:

Gains

 * 775 XP (or at level 70)
 * 250 reputation with Silvermoon City

Quest progression
es:Misión:Tierra corrupta