Stormwater Management
Stormwater BMP Installation
Every construction site operating under an NPDES Construction Generic Permit needs its Best Management Practices installed exactly as designed in the SWPPP — not approximated in the field. LES installs the full range of structural and non-structural BMPs called for in approved stormwater and site plans, from initial perimeter controls through final stabilization measures.
What’s Included
- Installation of all BMPs called for in the approved SWPPP and site plan
- Sequencing BMP installation to match the construction phasing plan
- Perimeter controls, inlet protection, and construction entrances
- Sediment basins, traps, and check dams where called for in design
- Documentation of field conditions and coordination on plan deviations
Technical Notes
Field installation that doesn't match the approved BMP plan sheet is one of the most common findings in stormwater compliance inspections. LES installs to the plan, documents deviations when site conditions require them, and coordinates any necessary plan amendments.
Frequently Asked Questions
What's the difference between structural and non-structural BMPs?
Structural BMPs are physical installations — silt fence, inlet protection, sediment basins, riprap. Non-structural BMPs include practices like phased grading, scheduling, and good housekeeping that reduce erosion risk without a physical structure.
What happens if field conditions don't match the BMP plan?
Field conditions sometimes differ from what was anticipated at design time. LES documents the discrepancy and coordinates with the project's engineer of record on any necessary adjustment rather than installing something that doesn't match either the plan or the actual site condition.
Request a proposal for stormwater bmp installation
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