Control Systems, SCADA and Service for Texas Water Systems

Aerial view of a Texas wastewater treatment plant oxidation ditch served by Mercer Controls

We Keep Texas
Water Running

Control panels, SCADA and 24/7 field service for cities, districts and MUDs across South and Central Texas.

Custom UL 508A control panel built by Mercer Controls

Control Panels

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Operator viewing a Mercer Controls SCADA screen on a tablet in the field

SCADA & Remote Monitoring

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Mercer Controls field technician wiring an outdoor control panel in Texas

Field Service

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Weathered outdoor duplex pump control panel with hand-off-auto selector switches, elapsed time meters and seal fail alarms, still in service

Built to Outlast the Job

Many of the panels we built in the early 1990s are still running today. We design conservatively and build the backups in — hand-off-auto switches, float and pressure backups, hardwired alarms — so a failed PLC, a lost radio link, or a dead sensor never means a station stops pumping.

Everything From One Shop

Who We Serve

  • Cities and towns across South and Central Texas
  • Water districts, MUDs, and river authorities
  • General contractors and engineering firms building or upgrading water/wastewater facilities
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How We Work

  • System walk-through & evaluation
  • Clear Scope & Estimate delivered in 1 week
  • Build, Install, & Startup
  • Support for the long-term
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What our clients say

See what our previous clients have to say about our services.

Solid Product

Mercer Controls has some solid products for our water system. From design through integration, their team clearly understands municipal water and wastewater operations. Since working with them, we’ve seen fewer nuisance alarms, smoother system performance, and much easier troubleshooting for our operators.

Industrial control panel with various switches, buttons, indicator lights, and meters mounted inside a metal cabinet.