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Stormwater Detention Systems 


Here at TXRWS, we want to simplify your water system, whether it’s just for your home or for your community, and the best way to do that is with our stormwater detention systems. Whether it’s an aboveground or underground detention system, batch detention like this is a great way to keep a usable, high-quality source of water nearby—and TXRWS can help bring it to life. 

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Batch Detention is

Batch detention is a modified extended basin that is primarily used to remove particulate pollutants. Batch detention ponds also have the potential to mimic predevelopment hydrology if detention is incorporated into the pond design and “stacked” on top of the water quality volume. 

Why Choose

Batch Detention?

Superior water quality performance over traditional detention basins

Reduced Construction Costs

Cost savings over sand filters results from smaller footprint and less dirt work

Use where land availability is restricted, less than 5 acres for below-grade install

Lower power requirements, solar power allows easy placement

High TSS removal rate–91%

Shape and Flow Flexibility

Batch detention ponds can be any shape and accept flow from any direction, does need costly splitter box typically used in sand filtration pond

Can function with little elevation head

Batch Detention Associated Costs

Less Expensive

Than sand filters, wet ponds, and created wetlands BMP’s

Largest Cost is Excavation

Using natural typography can significantly reduce cost-using a stormwater detention basin that already exists on the site can make the conversion to BMP structure extremely cost-effective rather than constructing a new pond. 

Cost Savings

Over sand, filters derive from smaller footprint and reduced construction costs, no filtration media like gravel or sand, minimal maintenance costs

Using Solar Power

Reduced construction costs since an electrical circuit does not have to be installed all the way to a remote corner of the property where the batch pond is typically located.  Solar power also does away with the need of a separate electric meter to power the system.  This can be very useful if the stormwater detention pond is maintained by a subdivision, HOA, or is a regional pond that serves multiple lots. 

More expensive than grassy swales and vegetated buffer strips, however

More Efficient

BD Costs
Design Criteria Overview

Capture and temporarily detain water quality volume with automated controller and valve

Primary function – settling basin. Downstream erosion can be limited by controlling peak flow rates when stacked with detention volume and outlet structure.

Solar power preferred by TCEQ

Can be readily combined with flood and erosion control detention basins by providing additional storage above the water quality volume


Controller Function


Valve is Closed

Default position is always closed. 1.5" of rain in pond triggers 12-hour timer


Valve Opens and Drains Pond

When 12-hour timer expires


Pond Empties

Within 48-hours or less after rain event ends


Valve Closes

When pond sensor switch detects no water, valve to be closed in 2-hours to let final drain happen

Cycle Repeats

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Why Choose TXRWS?

Local, Small, Independent

Who is responsive, detail-oriented, and performs high-quality work, low overhead, cost-effective


Quick services, and shorter lead times on equipment

Cut Out the Middle Man

We perform the job from start-to-finish and aid the GC. No subs.

TCEQ Approved

All design components, equipment, and standard detail sheets for submittal documents meet TCEQ specs

Custom Designed Systems

Meant especially for Batch Detention Pond - easy for client or maintenance contractor to operate/test

Smart Maintenance

Alert codes can ping contractor / maintenance personnel via cellular text / email, maint. plans available

Why TXRWS for BD
Contact TXRWS for Easy Batch Detention Installation
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