in savings
$ 180000 +

Purcellville, Virginia
SL-RAT Case Study

At a Glance ↯

  • Serves a population of just under 10,000
  • 36 miles of gravity sewer – covering 3 square miles
  • System is 25% clay lines with the rest consisting of PVC and ductile iron
  • Purchased a SL-RAT in 2018
  • Screened 220k+ feet of gravity sewers
  • Only 9% of their system scored low enough to trigger follow-up cleaning
  • Reduced cleaning by over 50% 

Background

Located in the heart of Loudoun Valley, a dedicated team of four manages both the town’s water distribution and wastewater collection systems. They also maintain a small hot spot program.

Main street buildings and road in Purcellville, VA

Challenge

Like many rural utilities, Purcellville faces the challenges of limited budgets and small staff. Due to their limited team, their goal has been to clean and inspect 20% of their system each year.

person bending down over manhole cover placing an SL-RAT transmitter device

Approach

Purcellville adopted a condition-based maintenance program to more efficiently meet their goals. They purchased a SL-RAT in 2018 and measured 50,000 ft in the first year.

Results

A Perfect Solution for Rural Water: Purcellville has reduced cleaning by over 50% and has saved over $180k. Additionally, they have saved over 800k gallons of flushing water.

Diagram of Purcellville pipes that are good, fair, poor, or blocked.

Acoustic inspection has been a gamechanger for our system. We are working more efficiently and reducing risk in our system.

sound wave illustration
Sean Grey
Maintenance Superintendent

Streamline sewer maintenance.