pH TESTING Slag from seven different sites at Nine Mile Run.   Crushing slag.   Testing pH.   A high pH result.   Site 1 (near a pine tree) Slag in water: 7.25 Crushed slag in water: 10.00+ Site 2 (under Rosemont) Slag in water: 7.75 Crushed slag in water: 10.00+ Site 3 (construction rubble) Slag in water: 7.50 Crushed slag in water: 8.00 Site 4 (view of Tree Top) Slag in water: 7.25 Crushed slag in water: 10.00 Site 5 (hill with trees) Slag in water: 6.75 Crushed slag in water: 10.00 Site 6 (hill with no trees) Slag in water: 8.00 Crushed slag in water: 10.00+ Site 7 (flat with trees) * might not be slag Slag in water: 6.50 Crushed slag in water: 7.25+ If slag is crushed, the pH will go up. Does that effect new planting?