SWPPP / EROSION CONTROL: THE RAIN-EVENT CLOCK
Most permits require inspection within 24 hours of a 0.25-inch rain event, on top of routine weekly or biweekly cadence. Rain events are unscheduled, simultaneous across every site in the portfolio, and contractually mandatory: the definition of surge staffing.
This page covers one problem. The full picture for this trade, including the other places margin leaks, is on the swppp / erosion control operating system page.
WHERE THE MONEY GOES.
Covered in full in the quick answer above. The sourced numbers and what controls it are below.
THE COST, SOURCED.
"Almost all jurisdictions require an additional 'rain event' inspection within 24 hours of a storm of a certain size (usually 0.25 inches)." (ROI Safety Services, 2026)
THE NUMBER TO MEASURE IT AGAINST.
SWPPP / Erosion Control contractors run about % net profit at $1M to $5M, rising to roughly 13% at $5M to $10M. The CFOS target at $1M to $5M is11%, set at 10 percent before taxes or 3.5 points better than your trade's average at your revenue, whichever is higher. A problem like this one lives in the distance between those two figures rather than in a loss on any single job.
Gross margin over the same bands runs % to 26%, against a CFOS target of 11%.
THE SYSTEM THAT FIXES THIS.
Cost codes built against the estimate, so a job can be read while it runs.
