Apply Petra-Zyme at the rates specified below while maintaining a 20% moisture content in the soil every 7 days for 14-21 days. For best results mix Petra-Zyme into the soil and allow ample oxygenation to the soil with dissolved oxygen rates greater than 5.5.
| TPH <1,000 | TPH 1,000-5,000 | TPH 5,000-10,000 | Crude Oil |
| 4% Petra-Zyme | 5% Petra-Zyme | 6% Petra-Zyme | 12% Petra-Zyme |
For diesel and crude oil remediation allow 4-5 weeks for remediation.
NOTE: Petra-Zyme must be used at temperatures greater than 60 degrees Fahrenheit.