Where SWPPP and erosion control contractors lose money
5 things cost SWPPP and erosion control contractors money without ever becoming a line item, and each one traces to a step you can install. SWPPP and erosion control contractors average 24% gross margin, 14% overhead and 10% net profit at $1M to $5M of revenue. The CFOS target at that size is 26.5% gross margin, 13% overhead and 13.5% net, and the 3.5 points left on the table is where those mechanisms live. Figures for all 7 revenue bands are in the table below.
SWPPP and erosion control ranks 1st of 11 in civil and earthwork on net profit, and it has leaner overhead than the 48-trade average. Here is every figure, across all 7 revenue bands.
Run On CFOS publishes the full benchmark reference: 48 trades across all 7 revenue bands, $1M to $500M and above. The 4 bands above $25M are modeled and labeled that way in every table, and no CFOS target is published for them. Run On CFOS computes net profit as gross margin minus overhead, before taxes.
SWPPP and erosion control by revenue band
| Metric | $1M to $5M | $5M to $10M | $10M to $25M | $25M to $50MModeled | $50M to $100MModeled | $100M to $500MModeled | $500M+Modeled | CFOS target at $1M to $5M |
|---|---|---|---|---|---|---|---|---|
| Overhead | 14% | 13% | 12% | 11% | 10% | 9% | 8% | 13% |
| Gross margin | 24% | 26% | 27% | 29% | 30% | 32% | 34% | 26.5% |
| Net profit | 10% | 13% | 15% | 18% | 20% | 23% | 26% | 13.5% |
| Metric | $1M to $5M | $5M to $10M | $10M to $25M |
|---|---|---|---|
| Overhead | 13% | 12% | 11% |
| Gross margin | 26.5% | 28.5% | 29.5% |
| Net profit | 13.5% | 16.5% | 18.5% |
Modeled extension of the survey curve, not reconciled against the licensed CFMA Benchmarker. That applies to the 4 bands above $10M to $25M, and no CFOS target is published for them.
Gross margin and overhead come from figures CFMA, Jones Maresca and other sources publish by trade and size. Net profit is computed, not surveyed: net profit = gross margin minus overhead. Nothing comes out for taxes, interest or other income and expense, so it is a before tax figure, on the same basis as CFMA's net income before taxes.
CFMA's 2025 medians are 7.1 percent before interest and taxes and 6.7 percent net income before taxes. Gross margin minus overhead leaves out interest and other income and expense, so a figure here can come in a little above or below a reported net income on the same business.
Above the $10M to $25M band the gross margin and overhead rows are a modeled extension of the same curves. They have not been reconciled against the licensed CFMA Benchmarker, so read those bands as a model and not as a survey result.
Run On CFOS. Run On CFOS Trade Benchmark Reference: SWPPP and erosion control. 2026. Sulphur Prairie Operations, LLC. https://runoncfos.com/trades/swppp. CC BY 4.0.
Figures on this page were last revised 2026-08-21. Published under CC BY 4.0, which permits reuse of any figure here, including commercially, as long as the credit above travels with it. The same figures in machine-readable form: /benchmarks.json.
Trade level gross margin and overhead come from figures CFMA, Jones Maresca and other sources publish, and Run On CFOS computes net profit from them: net profit = gross margin minus overhead, before taxes. The CFOS targets beside them are from the book CONTROL: C.F.O.S. Construction Financial Operating System, published with the full reference at runoncfos.com.
- 2024 Construction Financial Benchmarker, Executive Summary, Construction Financial Management Association, 2024.
- 2025 Construction Financial Benchmarker, Executive Summary, Construction Financial Management Association, 2025.
- 2025 Performance Benchmarks, Construction Companies, Jones Maresca and Company, 2025.
- Run On CFOS Trade Benchmark Reference, Sulphur Prairie Operations, LLC, 2026.
Sourcing and method: the methodology page.
Which bands are measured. The 4 bands above $10M to $25M extend the survey curve further out and have not been reconciled against the licensed CFMA Benchmarker. How every figure was built is explained on the methodology page.
Use these numbers on your own jobs
CFOS for QuickBooks grades your own books against the SWPPP and erosion control figures above, every month. At $1M to $5M, the published average net profit is 10% before taxes and the CFOS target is 13.5%.
Under $10M. You see which jobs made money while they are still open, so you can fix a SWPPP and erosion control job before it closes. From $10M to $50M. The controller gets a WIP that ties to QuickBooks Online, with each project manager's cost to complete approved every month.
5 problems specific to SWPPP and erosion control
The last pay app went out a year ago and the job is still spending money. It rains Tuesday night, the crew is out fixing fence Wednesday morning, and there's no pay item anywhere for that truck. 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. The GC wants fence in Monday, the NOI is still at the agency, and your crew has already been scheduled and released twice.
Each one below points at the item, the unit, the clock, or the party that makes it a SWPPP and erosion control problem, and it says which step fixes it.
| Mechanism | Why it's specific to this trade | Step |
|---|---|---|
| The job stops billing and keeps spending for a year | Every other trade on that site closes out at an inspection sign-off, which is a date a human being controls and can be argued about. Your scope closes when a plant reaches a percentage of cover, and plants keep their own schedule. No other trade has a phase that extends a year past their last invoice, so no other trade's job cost structure ever had to account for one. | Job cost structure |
| Weather owns your repair schedule; the permit owns the clock | No other trade has a contractual repair deadline measured in business days off a rainfall event, applying continuously from grubbing through NOT. A drywall crew that misses a Wednesday is behind schedule. You're out of compliance, and the notice of violation goes against the owner's permit, which is why you fund availability itself even though a bid form has no unit for it. | Overhead calculation |
| Miss the seeding window and you buy the job twice | 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. | Project management |
| Your mobilization depends on a clock the engineer owns | Your mobilization commitment is promised against a permit clock held by the design engineer and a regulator, with the GC's dirt date in between and no contract between you and either party. Other subs get scheduled off a predecessor trade they can walk out and look at. You get scheduled off the status of a document, and the only outfit that pays for a false start is the one with the trucks. | Project management |
| The reinstall has no pay item to bill against | No other trade on that job builds something other crews are expected to damage as a normal part of doing their work. A framer whose wall gets cut collects a backcharge because the damage is obvious, dated, and attributable to one crew. Yours happens in a trench line at 6 a.m. with no witness, so by the time the inspector walks it, the deficiency just looks like you didn't maintain your fence. | Standards and accountability |
SWPPP and erosion control against the other 47 trades
| Metric | SWPPP and erosion control | Civil and earthwork average | All 48 average | Rank |
|---|---|---|---|---|
| Overhead | 14% | 15% | 15.1% | 6th of 48 |
| Gross margin | 24% | 20.7% | 22.1% | 8th of 48 |
| Net profit | 10% | 5.7% | 7% | 1st of 48 |
SWPPP and erosion control sheds 6 points of overhead between $1M to $5M and $500M+, against 6.2 for civil and earthwork as a group. Inside that group, SWPPP and erosion control is the most profitable at 10%, and Civil, Excavation, Paving, 1 more all have 14% overhead, the leanest. This trade is one of them on both counts.
Other civil and earthwork trades
What owners ask
What overhead should a SWPPP and erosion control contractor have?
SWPPP and erosion control shares its overhead figure with 10 other trades at this revenue, which is what the published data resolves to. It averages 14% at $1M to $5M and 8% at $500M+, as a percentage of revenue. That is 1 point below the civil and earthwork average of 15%. The CFOS target at $1M to $5M is 13%. The CFOS target is one point leaner than your trade's industry average at your revenue.
What gross margin should a SWPPP and erosion control contractor have?
SWPPP and erosion control shares its gross margin figure with 4 other trades at this revenue, which is what the published data resolves to. It averages 24% at $1M to $5M and 34% at $500M+, as a percentage of revenue. That is 3.3 points above the civil and earthwork average of 20.7%. The CFOS target at $1M to $5M is 26.5%. The CFOS target recalculates at your revenue: whatever gross margin produces the net profit target once overhead is paid, never below your trade's own industry average.
What net profit should a SWPPP and erosion control contractor have?
SWPPP and erosion control has 10% at $1M to $5M, before taxes, gross margin minus overhead, as a percentage of revenue, which ranks 1st of 48 and puts it in the top of the table. By $500M+ it reaches 26%. That is 4.3 points above the civil and earthwork average of 5.7%. The CFOS target at $1M to $5M is 13.5%. The CFOS target recalculates at your revenue: 10 percent before taxes, or 3.5 points better than your trade's industry average, whichever is higher.
What profit margin should a small SWPPP and erosion control business have?
Owners usually mean net profit when they say profit margin, and for SWPPP and erosion control at $1M to $5M that's 10%. Gross margin is a different number, 24%, and it's what's left after job costs but before overhead. Overhead is the 14% between the two. A small SWPPP and erosion control business holding 10% net is at the published figure for its size, and the CFOS target at that revenue is 13.5%.
Does SWPPP and erosion control get more profitable as it grows?
Overhead is the number that moves. SWPPP and erosion control sheds 6 points between $1M to $5M and $500M+, which is in line with the 6.2 points civil and earthwork sheds as a group. Net profit is already above the 48-trade average, so the room is in holding it while revenue rises.
Where does SWPPP and erosion control rank against the other trades?
SWPPP and erosion control is 1st of 11 in civil and earthwork on net profit. It is the most profitable in the group. Its overhead is the leanest too, level with Civil, Excavation and Paving. Gross margin ranks 8th of 48 and overhead ranks 6th.
That's the industry average and the CFOS target for SWPPP and erosion control at every size. Want your own books set beside them? The Financial Health Snapshot builds a CEO Report from your last twelve months, sets every figure against your trade, and walks you through it on a 60 minute call. SPM The Construction CFO (Sulphur Prairie Management, LLC) is a separate firm, and the same author leads it.
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
Wrote CONTROL, the 8 step system behind these figures. More about the author.