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.
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.
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.
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.
Three moves, in order
Step 06: Project management
Billing dates, change orders, and notices, written as standards that work without anyone following up on them.
What else costs SWPPP and erosion control contractors money
The same mechanism in other trades
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.
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
