Riverview MHP

Situated along the Sacramento River just outside of Red Bluff, CA, Riverview Mobile Home Park was operating with a decades-old wastewater system that was deteriorating fast. With leach lines failing, tanks improperly installed, and even river sediment making its way into the septic system, the park faced mounting health, safety, and compliance concerns.

Caltech, in partnership with our sister company NexGen Engineering, was brought in to evaluate the situation and deliver a plan not just to fix the immediate issues, but to future-proof the park’s wastewater infrastructure for long-term reliability and growth.

The Challenge
The existing wastewater infrastructure—over 40 years old—had multiple critical failures. Our inspection uncovered:

• Back-falling sewer collection lines (causing waste to flow in reverse)
• Incorrectly installed leach fields and septic tanks
• Infiltration of river sediment, worsening system efficiency and posing environmental risk

The client needed a system that could resolve these urgent issues while laying the groundwork for full-park service in the future.

Caltech’s Approach
Working with NexGen Engineering, Caltech developed a phased, scalable wastewater treatment plan. Our initial design focused on addressing the most pressing needs: serving 8,500 gallons per day (GPD) of wastewater generated by the most critical units in the park.

Key elements of our approach included:

• Scalable system architecture that allows for seamless expansion in future phases
• Strategic placement and elevation design to overcome slope and sediment challenges
• Energy-efficient components to reduce long-term operating costs
• A construction plan that minimized disruption to residents and maximized cost control

The result was a fully permitted system that could handle today’s needs and adapt to tomorrow’s, all while respecting the natural landscape along the Sacramento River.

Results
The new system was completed on time and under budget. By redesigning key elements and implementing smarter construction sequencing, Caltech delivered nearly $150,000 in savings to the client.

The upgraded system now operates with low maintenance needs and reduced energy consumption, providing park management with peace of mind and a strong foundation for future upgrades as older components continue to age out.

Smart Infrastructure for Rural Communities
The Riverview project exemplifies Caltech’s ability to tailor complex solutions to fit modest footprints and limited budgets—without compromising long-term performance or regulatory compliance. As more mobile home communities look to upgrade aging systems, this project stands as a scalable, sustainable model.