Pond services help in Central Florida
Detention Pond Expansion & Regrading in Orlando, FL
Tell us what is happening. We will find the cause, explain your options, and handle detention pond expansion & regrading with care.
65+ years serving Central Florida
Licensed local service team
Fast scheduling and clear communication
Service Overview
Detention Pond Expansion & Regrading With Clear Answers Before Work Begins
When a site grows — through new buildings, additional impervious surface, or intensified use — the existing detention pond often can't handle the increased runoff volume. An undersized dry detention basin can cause downstream flooding, fail regulatory inspections, and put your permits at risk.
Lapin Services handles detention pond expansion and regrading for commercial, industrial, HOA, and development sites across Orlando and Central Florida. We increase storage volume, regrade slopes for erosion control, improve inflow and outflow hydraulics, and manage all permit modifications — so your stormwater system meets current requirements and supports the next phase of your project.
Problems We Solve
Common Detention Pond Expansion & Regrading Problems We Fix
You do not have to diagnose the problem yourself. These are common issues we help confirm, explain, and repair.
Insufficient Storage for Additional Development
Adding buildings, parking areas, or other impervious surfaces increases peak runoff — often exceeding what the existing detention pond was designed to hold, triggering a required expansion.
Erosion Along Basin Slopes
Improperly graded side slopes erode over time, depositing sediment in the basin, reducing effective storage volume, and creating maintenance and compliance headaches.
Inadequate Inflow or Outflow Hydraulics
Undersized or poorly positioned inlet and outlet structures restrict flow, causing the basin to drain too slowly or flood before capacity is reached — undermining the system's designed performance.
Permit Modifications for Site Changes
Any expansion of impervious area or change in site drainage typically requires a permit modification documenting that the updated detention basin meets applicable SJRWMD or county standards.
Failed Stormwater Inspection
A detention basin that no longer meets permitted volume requirements or has degraded slopes and structures will fail a regulatory inspection, blocking project approvals and occupancy.
When to Call
Signs Your Pond Or Stormwater Asset Needs Professional Attention
If you notice any of these signs, call Lapin. We will find the cause and explain what needs to happen next.
You're Adding Impervious Surface to the Site
New construction, parking lot expansions, or additional rooftop area increases runoff volume and often requires expanding the detention basin to maintain compliant storage capacity.
Slopes Are Eroding or Sloughing
Visible erosion on basin walls, rills in the side slopes, or sediment accumulating at the basin floor indicates regrading is needed to stabilize the embankment and restore design volume.
Standing Water Remains After Rain Events
A dry detention basin should drain within a regulated timeframe. Persistent standing water after storms suggests the outlet structure is undersized, obstructed, or the basin grade is incorrect.
You've Received a Compliance or NOV Notice
A Notice of Violation or compliance letter from the county or SJRWMD citing detention deficiencies requires documented corrective action — typically expansion, regrading, or hydraulic improvements.
Your Permit is Up for Renewal or Modification
ERP permit renewals and modifications often trigger a review of whether existing detention infrastructure still meets current volume and treatment requirements for the developed site area.
Our Process
What to Expect From Your Detention Pond Expansion & Regrading Visit
Tell us what is happening. We arrive prepared, explain the work clearly, and give clear pricing before work begins.
Step 1
Tell Us What Is Happening
Call or request service. You do not have to know exactly what failed; describe what you see, smell, hear, or need done.
Step 2
We Find the Cause
A Lapin technician or crew checks the issue, reviews the project, and explains what needs to be done in plain language.
Step 3
You Approve the Work
You get clear pricing and options before work begins, so you can make a confident decision.
Step 4
We Handle It With Care
We complete the approved work, respect your home, business, or jobsite, and keep you informed.
Step 5
We Stand Behind the Job
Before we leave, we confirm the work, answer questions, and make sure you know what to expect next.
Why Lapin
Why Central Florida Chooses Lapin for Detention Pond Expansion & Regrading
Our name is on every job. We respect your time, budget, property, and trust.
65+ Years of Experience
Lapin has served Central Florida since 1958. Our name is on every job, and we do the work in a way we can stand behind.
Clear Communication
We explain what we find, what it means, and what your options are before work begins.
Respect for Your Property
We protect the home, business, property, or jobsite and treat people the way we would want to be treated.
The Right Team for the Work
We handle plumbing, septic, drains, sewer, underground utilities, commercial service, and serious project work.
Care When It Matters
Every call affects a family, tenant, customer, business, property, or project. We do not take that lightly.
Related Services
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FAQs
Detention Pond Expansion & Regrading FAQs
What is the difference between a detention pond and a retention pond?
A detention pond (dry basin) temporarily holds stormwater runoff and drains completely between storm events. A retention pond (wet pond) maintains a permanent pool of water. Expansion and regrading work differs between the two because detention basins must drain to a defined elevation within a regulated time window.
Do I need a permit to expand or regrade a detention pond in Orlando?
Yes. Expanding a detention basin or modifying its outlet structure typically requires a permit modification from Orange County and an Environmental Resource Permit (ERP) modification from the St. Johns River Water Management District (SJRWMD). Lapin manages the permitting process for you.
How much volume does a detention pond expansion add?
The required volume increase depends on the additional impervious area being added to the drainage basin and the applicable stormwater treatment and attenuation standards. A licensed engineer calculates the required storage volume, and Lapin excavates and grades to meet that specification.
Can you improve how fast the basin drains during the expansion?
Yes. Expansion projects often include upgrading or repositioning the outlet control structure to improve outflow hydraulics, reduce drain-down time, and ensure the basin empties within the regulatory window before the next storm event.
What causes detention pond slopes to erode?
Slopes erode when they are too steep, lack vegetative cover, or experience concentrated flow from improperly positioned inlets. Regrading flattens the slope to a stable angle and is typically combined with seeding or sod to stabilize the surface against future erosion.
How long does a detention pond expansion project take?
Timeline depends on the volume of earthwork required, site access, and permit approval speed. Small expansions may take a few days of field work once permits are in hand; larger projects involving significant excavation and structure upgrades can take one to several weeks.
Can you work with our civil engineer on the pond design?
Yes. Lapin coordinates directly with civil engineers, project managers, and developers to execute detention basin expansions according to permitted design documents — ensuring the finished pond matches what was approved.
Do you serve areas outside of Orlando?
Yes. We serve Orlando and the broader Central Florida region including Orange, Osceola, Seminole, and Lake counties.
Schedule Service
Tell Us What Is Happening
Call Lapin or request service. We will get the right team moving, explain your options, and handle the work with care.