there is alot of controversy about ph of soil run off. there are good arguments on both sides. i'd read as much as i can about that,

from the limited information ive gleaned, soil run off ph is a factor of sooo many different variables, like the medium, temperature, nutrient and water ph, the size of the root mass, and the used up nutrients/waste products built up in the soil. be careful if you are going to use run off for an indicator.

my to pennies.

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why would you arrest a person growing less than 1 oz, with a 4.0 gpa, no traffic violations, and no criminal history to speak of? sort your priorities mate...