SWPPP AND EROSION CONTROL · CIVIL AND EARTHWORK · FIXED BY STEP 06

Miss the seeding window and you buy the job twice

Grading took too long, the fall window closed, and now you're paying for temporary cover and inspections all winter waiting on spring to seed.

WHY IT'S A SWPPP AND EROSION CONTROL PROBLEM

Plenty of trades wait on long lead items, but a switchgear date can be paid to move and a soil temperature can't. Your long lead constraint is a calendar written by soil temperature and daylight, and it closes whether or not the GC finished grading. Germination can't be expedited. That's why a two-week grading slip on your scope turns into a season.

WHAT IT COSTS

The size of it

One missed window converts a single seeding mobilization into temporary cover, four to six months of BMP maintenance and inspections, and a second full seeding mobilization the following season. The bid priced one seeding. The job buys two, plus a winter of maintenance no one is paying for.

OVERHEAD AT $1M to $5M
14%
CFOS target 13% for SWPPP and erosion control.
GROSS MARGIN AT $1M to $5M
24%
CFOS target 26.5% for SWPPP and erosion control.
NET PROFIT AT $1M to $5M
10%
CFOS target 13.5% for SWPPP and erosion control.

Cool-season seed won't germinate applied into July heat, and warm-season seed won't germinate into cool spring soil. Hydroseed washes off the slope if rain falls inside the 24 to 48 hour cure on the bonded fiber matrix. What's left is a permanent seeding window of a few weeks, twice a year. The GC's grading schedule decides when finish grade is available, and finish grade rarely becomes available inside that window. The permit doesn't flex for it either: stabilization has to be initiated immediately in areas inactive 14 or more days and completed within 7 to 14 days, so you install temporary cover, maintain it, and come back in spring for the seeding you already bid.

WHAT TO DO

Three moves, in order

STEP 01
Put both seeding windows on the same calendar as the grading schedule and mark the last date finish grade has to be available for each area.
STEP 02
The day grading goes past that date, send written notice with a price attached: temporary stabilization, the monthly cost through winter, and the second mobilization.
STEP 03
Bid temporary stabilization and extended maintenance as their own line items with a stated monthly rate, so the change order has a number to point at.
QUESTIONS

What SWPPP and erosion control owners ask

Grading slipped past the seeding window who pays for the second seeding?

Grading took too long, the fall window closed, and now you're paying for temporary cover and inspections all winter waiting on spring to seed.

What does it cost?

One missed window converts a single seeding mobilization into temporary cover, four to six months of BMP maintenance and inspections, and a second full seeding mobilization the following season. The bid priced one seeding. The job buys two, plus a winter of maintenance no one is paying for.

What do I do first?

Put both seeding windows on the same calendar as the grading schedule and mark the last date finish grade has to be available for each area.

What are SWPPP and erosion control contractors supposed to be making?

SWPPP and erosion control has 24% gross margin, 14% overhead and 10% net profit after taxes at $1M to $5M. The all-trade average is 7%, so this trade is 3 points above it. The CFOS target is 13.5%.

Which part of the system fixes it?

The step is number 06, project management. Billing dates, change orders, and notices, written as standards that work without anyone following up on them. It comes from chapter 6 of CONTROL: C.F.O.S. Construction Financial Operating System.

OR HAVE IT HANDLED

Everything on this page is something you can install yourself, and CONTROL is the order to do it in. If you would rather buy the finished result, SPM The Construction CFO does this work for SWPPP and erosion control contractors as a service. It is a separate firm, Sulphur Prairie Management, LLC, led by the same author.

What a fractional CFO does for SWPPP and erosion control contractors

AUTHOR
Josh Luebker
JOSH LUEBKER
MASTER ELECTRICIAN · 150+ PROJECTS · $2.1B+ MANAGED

Wrote CONTROL, the 8 step system behind these figures. More about the author.

Updated

8 Steps 60 Days

CONTROL is the full system, written for commercial subcontractors from under $1M to $100M. It's out now. 8 steps, 6 working templates, and the order they install in. $9.99 ebook, $24.99 paperback.