Document Overview
This case history describes treatment of four production pits in Southern Louisiana using PES-31 and PES-41. The treatment approach involved bioaugmentation and windrowing of crude oil and salt water impacted soil.
Reported Before and After Result
Reported Remediation Results
| Metric | Before / Initial | After / Final | Reported Change | Notes |
|---|---|---|---|---|
| Oil and grease — average across quadrants | Reported quadrant values ranged from approximately 2.7% to 4.2% | Reported Day 28 values ranged from approximately 1.6% to 1.8% | Average reported reduction: 48% | EPA Method 413.1 shown in source table |
| Target oil and grease level | Initial values above target | <1% target | Target stated in source document | Target level shown as <1% O&G |
| Chlorides | 11,000 ppm | Not reported | Initial value only | Reported in initial levels |
Project and Application Details
PES Application Summary
The source document identifies production pit remediation using bioaugmentation and windrowing. The project treated sands, silts, and clays impacted by crude oil and salt water.
Reported Outcome
Oil and grease values were monitored by quadrant over a 28-day period. The source table reports an average 48% reduction across the four quadrants.
Key Takeaways
This case history is useful for production pit remediation content because it includes treatment scale, media type, contaminant type, a defined target level, and quadrant-based oil and grease results.
Related PES Information
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