Teller County Water & Sanitation District No. 1
Matrix is the district engineer for the Teller County Water and Sanitation District #1 (TCWSD#1). As district engineer, Matrix has been involved with multiple projects including planning studies and treatment alternatives analysis for the potable water system. TCWSD#1 currently has two wells running to supply the entire system with several wells offline. Matrix is preparing a planning study to evaluate existing demands and reliability of the system. Matrix will review individual wells and provide recommendations for specific wells to be brought back online and will also design the rehabilitation for such wells.
The water supply for TCWSD#1 has been contaminated with Ethylene Dibromide (EDB). Matrix evaluated the existing granular activated carbon (GAC) treatment system and provided recommendations for alternative treatments deemed more energy and cost efficient than GAC units. As part of the recommendations, Matrix prepared a life-cycle cost/benefit analysis to show cost savings associated with the more energy efficient treatment.
The Matrix team performed a structural investigation of the existing concrete storage tank to determine long-term usability. The existing tank is currently offline; Matrix is developing alternate storage options such as connecting with neighboring water systems, demolishing the existing tank and installing a new tank at the site, refurbishing the existing tank and increasing its capacity, and combinations thereof.
Matrix has also completed a preliminary engineering report (PER) and secured a Drinking Water Revolving Fund loan from the Colorado Department of Public Health and Environment (CDPHE). The PER outlined multiple alternatives for storage and distribution system upgrades for TCWSD#1. Additionally, as part of the PER, costs for each alternative were evaluated and ultimately utilized to secure a $1.7M loan for the proposed improvements. Matrix recently completed the design of the improvements to the existing water storage tank and is now preparing the construction drawings for the distribution system improvements.
The improvements to the existing storage tank provided many challenges. The existing tank was constructed in the late-1950s and is a triangularly shaped concrete tank. During the preparation of the PER, Matrix discovered that the property for the tank was the triangular footprint of the tank. The tank is situated at the top of a hill with steep slopes surrounding the property. The existing property line and limited land dictated that the only feasible solution was to rehabilitate the existing tank. Another major challenge was that TCWSD#1 did not possess any as-built drawings of the tank. Many of the assumptions that were made for the design had to be changed and redesigned once construction began and as information was obtained.
- Infrastructure Assessment and Master Planning
- Water Rights Analysis
- Potable Water Infrastructure Design
- Water/Wastewater Treatment Design
- Hydraulic Modeling and Analysis
- Construction Documents
- Cost Estimating
- Grant Writing