Sundown Water Treatment Plant

Project Overview

MH Civil Constructors partnered with the City of Sundown and Parkhill to deliver a New Wastewater Treatment Plant, a comprehensive infrastructure replacement designed to secure the community’s utility future. Moving beyond simple repairs, the City utilized the Clean Water State Revolving Fund to finance a complete system overhaul. The scope featured the construction of a new facultative lagoon, an effluent storage pond, a high-efficiency lift station, and a modern irrigation-based effluent handling system, alongside the formal closure of the City’s outdated treatment facilities.

The Problem

  • System Obsolescence: The existing wastewater plant had reached the end of its functional life, requiring a full-scale replacement rather than incremental maintenance.
  • Environmental Compliance: To meet modern standards and secure state funding, the City needed a system capable of sophisticated effluent handling via irrigation.
  • Long-Term Reliability: As a primary municipal service, the wastewater system required a design that ensured operational resilience for decades to come.
  • Decommissioning Needs: The project required a seamless transition from the old plant to the new facility, including the safe and permanent closure of existing infrastructure.

Our Solution

MH Civil managed the end-to-end construction of the new treatment facility, beginning with the installation of a new lift station and 3,268 linear feet of 6-inch PVC force main. The core treatment capacity was established through the placement of over 184,771 square feet of high-performance pond liner and geotextile for the facultative lagoon and storage ponds. To manage effluent, the team constructed a specialized irrigation structure equipped with integrated pumps, electrical controls, and flow meters, supported by 1,204 linear feet of irrigation line and a “Big Gun” irrigation system.

The scope extended to vital site improvements, including the construction of access roads, culverts, and over 2,300 linear feet of security fencing. Throughout the process, MH Civil coordinated the transition of services, ensuring the new plant was fully integrated into the City’s grid before finalizing the closure of the previous facility.

The Results

The project was successfully delivered to a fully operational status, closing out at a final value of $2,515,493.60—significantly under the original contract price through disciplined management and change-order efficiencies. By completing this project within the rigorous requirements of the State Revolving Fund, MH Civil provided the City of Sundown with a modernized, compliant, and highly efficient wastewater solution. Local reporting confirmed the plant’s successful transition into active service, marking a major milestone in the City’s effort to provide reliable, long-term utility service to its residents.

CLIENT

City of Sundown

location

Sundown, TX

project type

WTP

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