CPESC study materials
CPESC study resources

CPESC case studies

CPESC · Put your knowledge to work in context.

The Certified Professional in Erosion and Sediment Control (CPESC) is a credential for practitioners who plan, design, review, or inspect erosion and sediment control measures on construction and land-disturbing projects. Holders typically work as civil engineers, landscape architects, soil scientists, inspectors, plan reviewers, or environmental compliance specialists for consultants, agencies, contractors, and developers. The certification signals that a professional can select appropriate best management practices, match them to site soils, slopes, and rainfall, and defend those choices in a regulatory review. The exam samples broadly across the field rather than drilling into a single specialty. The CPESC case studies are 5 cases and about 4,299 words.

1

Reusing a Farm Pond as the Sediment Basin: Storage and Drawdown Judgment

Your firm is designing erosion and sediment control for a 22-acre residential subdivision. Grading will disturb 14.5 acres in one phase over 9 months on Type C soils with 3–8% slopes.

836 words, about 4 min
2

Phase-by-Phase Subdivision and the Common Plan Question

A 46-acre commercial tract is being developed by a single owner in five phases under one master plan and one set of covenants. Phase 2 breaks ground Monday and disturbs 0.9 acre: a building pad and a 400-ft driveway.

801 words, about 4 min
3

Turbidity That Will Not Settle: Dispersive Clay on a Cut Slope

A highway widening project has exposed 4 acres of cut slope in a stiff, gray, slickensided clay. Runoff from the slope is the color of milk chocolate.

869 words, about 4 min
4

Two Days Before a 2.5-Inch Rain: Prioritizing Deficiencies on an Active Site

It is Thursday at 3 p.m. The forecast is 2.5 inches of rain over 36 hours beginning Friday night.

917 words, about 5 min
5

Backdating an Inspection and the Prior Consultant's Reports

A general contractor retains your firm for weekly inspections of a 6-acre site over a 4-month schedule. On your second visit you find the previous consultant's signed weekly inspection reports in the site trailer.

876 words, about 4 min