If you’re managing a commercial construction site in the DFW metroplex, erosion control isn’t just good practice — it’s the law. The Texas Commission on Environmental Quality (TCEQ) requires active construction sites to implement and maintain erosion control measures that prevent sediment from leaving your property.
Get it wrong, and you’re looking at fines, stop-work orders, and damage to your company’s reputation. Get it right, and you protect local waterways, maintain good relationships with neighbors, and keep your project on schedule.
Why Erosion Control Matters in North Texas
DFW’s clay soil is uniquely vulnerable to erosion. When exposed by construction activity, the fine clay particles are easily carried off by stormwater runoff. The Blackland Prairie clay that dominates our region creates several specific challenges:
- **High silt content** — Clay particles stay suspended in water for hours, traveling long distances before settling
- **Low infiltration rates** — Water runs off rather than soaking in, increasing runoff volume and velocity
- **Intense rainfall events** — DFW averages 36-40 inches of rain per year, often delivered in short, intense thunderstorms
- **Expansive soil behavior** — Clay shrinks and swells with moisture changes, destabilizing exposed slopes
Every ton of soil that leaves your site ends up in local creeks, rivers, and lakes — including Lake Ray Hubbard, Lake Lewisville, and the Trinity River. Sediment is the #1 pollutant by volume in Texas waterways.
TCEQ Requirements: What You Need to Know
The Texas Commission on Environmental Quality regulates stormwater discharge from construction sites under the Texas Pollutant Discharge Elimination System (TPDES) .
Who needs a permit:
- Any construction activity that disturbs **one acre or more** of land
- Sites smaller than one acre that are part of a larger common plan of development
- This includes clearing, grading, excavation, and stockpiling activities
Key requirements:
- Submit a **Notice of Intent (NOI)** to TCEQ before construction begins
- Develop and implement a **Stormwater Pollution Prevention Plan (SWPPP)**
- Install and maintain **Best Management Practices (BMPs)** for erosion and sediment control
- Conduct regular inspections and maintain documentation
- Submit a **Notice of Termination (NOT)** when construction is complete and the site is stabilized
The SWPPP: Your Compliance Roadmap
A Stormwater Pollution Prevention Plan is the centerpiece of your erosion control program. It’s a living document that must be updated as site conditions change.
What a SWPPP must include:
- Site description and existing drainage patterns
- Description of construction activities and sequence
- Identification of potential pollutant sources
- Description of BMPs to be used (with design specifications)
- Inspection schedule and procedures
- Corrective action protocols
- Names and contact information for responsible parties
Common SWPPP mistakes:
- Generic plans that don’t reflect actual site conditions
- BMPs that are specified but never installed
- Inspection reports that are incomplete or missing
- Failure to update the plan when site conditions change
Best Management Practices for DFW Construction Sites
Silt Fences
The most common perimeter control. Proper installation is critical:
- Install along the contour, not downhill
- Trench the bottom 6 inches of fabric into the ground and backfill
- Use steel posts spaced no more than 6 feet apart
- Maximum drainage area per fence: 1/4 acre per 100 feet of fence
- Inspect after every rain event and repair damage immediately
DFW tip: Our clay soil makes trenching difficult. Use a trencher or walk-behind edger to create a clean slot. If the soil is too hard, wet it down 24 hours before installation.
Sediment Basins
For larger sites (10+ acres of drainage area), sediment basins capture runoff and allow sediment to settle before water is released.
- Basin volume must be at least 3,600 cubic feet per acre of drainage area
- Outlet structure should draw water from the surface (cleanest water)
- Inspect and clean after each significant rain event
- Consider using chemical flocculants (with TCEQ approval) to speed settling
Straw Wattles and Fiber Rolls
Effective for slope interruption and channel protection:
- Install on contours at intervals based on slope steepness (10-20 feet apart on 2:1 slopes)
- Stake securely with wooden stakes driven through the center
- Trench the bottom edge to prevent undercutting
- Replace when saturated or damaged
Hydroseeding and Temporary Stabilization
The most effective long-term erosion control is vegetation. For temporary stabilization:
- **Hydroseed** with a fast-germinating annual rye grass and native seed mix
- **Apply hydromulch** (wood fiber with tackifier) on slopes steeper than 3:1
- **Use rolled erosion control products (RECPs)** — jute netting, coconut fiber blankets, or synthetic turf reinforcement mats on critical slopes
- **Stabilize within 14 days** of final grading per TCEQ requirements
Inlet Protection
Protect storm drains from sediment-laden water:
- Use sediment filter bags, block-and-gravel barriers, or proprietary inlet filters
- Clean or replace after each rain event
- Never block inlets completely — allow overflow during extreme events
Inspection Schedule and Documentation
TCEQ requires inspections at specific intervals:
- **At least once every 7 days**
- **Within 24 hours after a rainfall event of 0.5 inches or more**
- **More frequently during active construction phases**
What to document:
- Date, time, and weather conditions
- Name and signature of inspector
- BMP condition (functional, needs repair, failed)
- Corrective actions taken
- Photographs of all BMPs and any problem areas
Record retention: Keep all inspection reports, SWPPP documents, and correspondence for at least 3 years after project completion.
Common Violations and How to Avoid Them
TCEQ enforcement actions in the DFW region frequently cite these violations:
- **No SWPPP on site** — The plan must be physically available at the construction site
- **Inadequate perimeter controls** — Silt fences not installed before grading begins
- **Sediment tracking onto public roads** — No stabilized construction entrance
- **Inlet protection missing or failed** — Sediment entering storm drains
- **Incomplete inspection reports** — Missing signatures, dates, or corrective actions
- **Failure to stabilize** — Exposed soil left unstabilized for more than 14 days
Fines: TCEQ can assess penalties of up to $25,000 per day per violation. In 2023, several DFW construction sites received fines ranging from $5,000 to $50,000 for erosion control violations.
DFW-Specific Challenges
Clay soil erosion: Unlike sandy soils that erode gradually, clay soil tends to form deep rills and gullies during heavy rain. Once a gully starts, it deepens rapidly. Inspect slopes after every rain and repair rills immediately.
Heavy rain events: DFW’s thunderstorms can drop 2-4 inches in an hour. Design your BMPs for the 10-year, 24-hour storm event (approximately 5-6 inches in the DFW area). Temporary controls should be oversized to handle these events.
Freeze-thaw cycles: Winter freeze-thaw cycles destabilize exposed soil. Apply temporary stabilization (straw mulch or hydromulch) before winter to protect slopes during freeze-thaw conditions.
Wind erosion: During dry periods, exposed clay soil creates dust that can drift onto neighboring properties. Use water trucks, dust suppressants, or temporary vegetation to control wind erosion.
Partner with Groundhogs Services for Erosion Control Compliance
Erosion control is a specialized discipline that requires knowledge of TCEQ regulations, BMP design, and DFW-specific soil conditions. Groundhogs Services provides erosion control installation, inspection, and maintenance for commercial construction sites across the DFW metroplex.
Our services include:
- SWPPP development and review
- Silt fence, straw wattle, and sediment basin installation
- Hydroseeding and temporary stabilization
- Regular inspection and documentation
- Corrective action and maintenance
- Final stabilization and NOT preparation
Call (214) 713-1228 or visit groundhogstx.com to discuss your project’s erosion control needs.
