These trunk lines flow the influent directly to SRWTP and it will only take approximately 8 hours to process and treat the incoming waste.

The first process of primary sedimentation settles material to the bottom, where after removal of most of the waste, Oxygen is added to allow microscopic organisms to break down and digest wastewater particles.

According to Industry Tap the project name comes from the idea that "just like sound waves echo back to their original source," so too will SRWTP's water entering the Sacramento River.

[4] Ammonia, nitrates, and other pathogens will be removed through the addition of hypochlorite, sodium bisulphite, and filtering and disinfection layers that will improve the discharged water to a tertiary status that can then be used for landscaping, agriculture, and power plants.

SRWTP provides community education and public outreach to share how the use of biosolids is a great practice in sustainability and reduces human footprint.

[8] This area contains both uplands and wetlands and supports native birds, mammals, fish, reptiles, amphibians, as well as some of California’s endangered species, and in 2017 a rare albino deer was even spotted at the site.

A 2017 study from Kraus et al. concluded that phytoplankton declines were not due to Regional San and was from another source (i.e. non-native clams, climate change).