Academy/Maintenance Fundamentals
Stormwater systems
Catch basins, pipes, and ponds are common-area infrastructure. Learn who is responsible for keeping them working, and how to find out if yours is legally a dam.
Your HOA's stormwater system, the catch basins, pipes, and any pond or detention basin, needs the same kind of documented maintenance plan as your roof or elevator. If the association owns the pond, the association is usually responsible for keeping it working, and in some states, that pond may also be legally a dam.
What counts as a stormwater system
Stormwater systems move rain and runoff away from buildings, roads, and parking lots before it causes damage. In most communities that means catch basins and inlet grates, underground pipe networks, and often a retention or detention pond that holds runoff and releases it slowly. EPA's stormwater maintenance guidance describes routine catch basin upkeep as trash removal where a screen or trap is installed, plus removing accumulated sediment, typically done with a vactor truck.
Skipping that work does not just raise the eventual bill. Postponed maintenance across a property can create real fiscal and safety consequences for the association, not only a bigger repair later.
Who's responsible for the pond in your community
If your association owns the detention or retention pond, the association is typically the party responsible for maintaining it, unless a specific agreement assigns that job to a municipality or another party. That responsibility does not disappear because the pond looks like landscaping or sits at the edge of the property.
Check your CC&Rs and any recorded agreements tied to the pond to confirm who is actually on the hook. The exact split of responsibility can differ by community and by any placement or easement agreement on file, so confirm it in your own documents rather than assuming.
What a stormwater maintenance plan should cover
EPA's guidance on stormwater maintenance describes what a documented operation and maintenance plan should include for a facility like a detention pond:
"Identification of the parties responsible for maintenance," "Maintenance schedules," "Inspection requirements," "Frequency of inspections," and "Identification of a funding source."
Source: Stormwater Maintenance (NPDES), U.S. Environmental Protection Agency
A plan with no named owner for each task is a common reason catch basins go years without a cleanout. Naming a responsible party and a schedule, in writing, is the fix.
Is your pond legally a dam?
Some HOA ponds and detention structures meet a state's legal definition of a dam, and some do not, depending on the structure's height and how much water it can hold back. Whether your community's pond counts as a regulated dam, and what inspection interval applies, is a state-by-state legal question your board cannot answer just by looking at the pond.
The only way to know is to contact your state's dam safety program directly and ask whether your specific structure is classified and what it requires.
Check yourself
Answer before you read the explanation, recalling it is what makes it stick.
Your HOA owns a detention pond that collects stormwater runoff from community streets. Who is responsible for maintaining it?
The board discovers nobody has inspected the community's catch basins in years, and no one knows whose job that is. What should the pond's operation and maintenance plan identify?
A board member argues the community's retention pond is "just landscaping," so state dam safety laws cannot apply to it. Is that argument correct?
Sources
- Stormwater Maintenance (NPDES), U.S. Environmental Protection Agency
- Deferred Capital Renewal and Deferred Maintenance, APPA
- Dams & Reservoirs; Safe Dams Program, South Carolina Department of Environmental Services / Tennessee Department of Environment and Conservation
Maintenance Fundamentals
Next, see how a written maintenance schedule turns tasks like this from someone's memory into something your board can actually track.
Whether your pond counts as a regulated dam, and exactly who is responsible for a shared stormwater system under any placement or maintenance agreement, both vary by state and by your community's own recorded documents.