Traditional gravity sewer systems can be prohibitively expensive, especially in areas with dense clay soils, narrow roads, and tight residential lots. That was the challenge facing portions of Indianapolis, where failing septic tanks were threatening public health and environmental safety.
The city’s initial Septic Tank Elimination Program (STEP) relied on gravity sewers, but the cost and road work disruptions quickly escalated.
In 2016, Citizens Energy Group restructured the program using the ALL-TERRAIN SEWER™ system from E/One. The project leveraged horizontal directional drilling (HDD) for a faster, less disruptive installation, making it ideal for dense urban environments. This design-build approach demonstrated how modern pressure sewer technology can expand a municipalities’ central sewer service efficiently and economically.
Key Cost-Saving Benefits:
- Lower Capital Costs: No deep trenching, open cuts, or extensive excavation required
- Minimal Disruption: Faster installation in tight, established neighborhoods with minimal rebuilding of roads, curbs or driveways
- Scalable Efficiency: Ideal for both urban infill and rural expansion
- Reduced Operation and Maintenance Budget: With an average meantime between service calls of 10 years and no preventive maintenance, E/One’s lifecycle cost is the best in the industry
Watch the Case Study Video
See how Indianapolis and Citizens Energy Group delivered one of the largest and most cost-effective septic-to -sewer conversions in a major metro area and learn why E/One’s pressure sewer technology was the clear choice.
Septic Tank Elimination Program (STEP) Cost Comparison
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