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I am editing the existing article, Sacramento Regional Wastewater Treatment Plant. Here, I am currently focusing on the EchoWater project and listed below is the "Process" section for context. The goal of the EchoWater Project must be clearly stated within the first few sentences. How the project will meet its goals must be detailed. There are inconsistencies in "EchoWater project" vs. "EchoWater Projects".

Background
The Sacramento Regional Wastewater Treatment Plant (SRWTP) in Elk Grove, California, United States was built along the Interstate 5 during the 1970s and became fully operational in 1982. The plant was built to centralize wastewater treatment, instead of sending it to the 22 treatment plants that used to exist in the Sacramento Area. The SRWTP employs approximately 350 people, treats approximately 127 million gallons of effluent daily for over 1.4 million people in Elk Grove, Sacramento, Citrus Heights, Folsom, and Rancho Cordova. It was later renamed Regional Sanitation as it continues upgrades to meet new state standards.

Edited
The Sacramento Regional Wastewater Treatment Plant (SRWTP) is owned and operated by Regional Sanitation (Regional San, previously the Wastewater Treatment Plant). Operating since 1982, the Wastewater Treatment Plant (WWTP) was built to serve more than 1.4 million people in replacing 22 treatment plants that served across Sacramento, West Sacramento, Rancho Cordova, Citrus Heights, Elk Grove, and Folsom. (←reword sentence) Approximately 127 million gallons of effluent is treated daily. The SRWTP started the construction of the EchoWater project, where upgrades in technology and infrastructure are added as a tertiary step in removing biological nutrients (source).

Process
The process that SRWTP uses to treat its wastewater takes many steps and requires aid from other agencies. The Sacramento Area Sewer District (SASD) uses its web of underground pipes to send influent from homes and businesses lateral lines to the main sewer line where it will then flow to various trunk lines. 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. After these steps, secondary clarifiers will remove the microscopic organisms that settle on the bottom of the tanks, and then chlorine is added to the water to assure harmful contaminants are removed. The effluent will finally leave the plant and travel two miles to be discharged into the Sacramento River, near Garcia Bend, and to neutralize the chlorine, SRWTP adds sulfur dioxide before the wastewater enters the river and comes in contact with aquatic life.

Edited
The process that SRWTP uses to treat wastewater requires aid from other agencies. The Sacramento Area Sewer District (SASD) collects wastewater across Sacramento County, using a web of underground pipes to send influent from homes and businesses. Lateral lines direct it through main sewer lines and trunk lines, navigating toward the SRWTP. In an 8 hour process, the Sacramento Regional Wastewater Treatment Plant treats the influent in three stages: (1) primary sedimentation, (2) oxygenation, and (3) biological nutrient removal. Primary sedimentation allows material to settle to the bottom. After waste removal, oxygen is added for microscopic organisms to digest wastewater particles. Secondary clarifiers remove the microscopic organisms settled on the tank bottoms. Chlorine is added to the water ensuring that harmful contaminants are removed. The effluent travels two miles to be discharged into the Sacramento River, near Garcia Bend. Before the wastewater enters the river and comes in contact with aquatic life, sulfur dioxide is infused to neutralize the chlorine.

EchoWater project
The Central Valley Regional Water Control Board is requiring the project to meet discharge requirements of all treatment plants in the state by 2023, hence the EchoWater Project. 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. The EchoWater Project construction started on May 28, 2015 and although required completion date is by 2023 SRWTP is hoping to achieve this before then and is on track with a 2021 finish. Upon the completion of the project, discharged ammonia levels should be reduced approximately 95%, therefore increasing the water quality, the ability to recycle water, and survival rates of the nearly extinct Delta Smelt. 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. Biological Nutrient Removal (BNR) and a Return Activated Sludge systems are other new additions that will also enhance water quality and have a price tag of approximately $500 M.

The EchoWater Projects consists of 12 projects that are primarily funded by California’s Clean Water State Revolving Fund that contributed $1.6 B and the State Water Resources Control Board. Monetary aide from these two entities will save Sacramento area customers from high interest costs to their monthly bill statements. When the project first began in 2010, monthly bills were projected to increase to at least $60 per month, now that number has drastically shrunk to only $39 per month in 2021. EchoWater is the largest project in the history of Sacramento, even surpassing the Sacramento International Airport and new Golden 1 Center Arena in cost.

Edited
The EchoWater project was created as an upgrade from the original wastewater treatment plant with infrastructure to treat biological nutrients, pump effluent, flow equalization basins of increased capacity, store and dispense chemicals, pump stations to filter influent, and a contact basin for disinfection. The Central Valley Regional Water Control Board requires the EchoWater project to meet discharge requirements of all treatment plants in the state by 2023 (add source). According to Industry Tap the project name is derived from the idea that "like sound waves echo back to their original source," so too will SRWTP's water entering the Sacramento River. The EchoWater project construction started on May 28, 2015 and although required completion date is by 2023 SRWTP is hoping to achieve this before then and is on track with a 2021 finish.(Reword this sentence)

The EchoWater project is the largest project in the history of Sacramento, even surpassing the Sacramento International Airport and new Golden 1 Center Arena in cost (source).The EchoWater project consists of 17 projects that are primarily funded by California’s Clean Water State Revolving Fund that contributed $1.6 B and the State Water Resources Control Board. Monetary aid from these two entities will save Sacramento area customers from high interest costs to their monthly bill statements. When the project first began in 2010, monthly bills were projected to increase to at least $60 per month, now that number has drastically shrunk to only $39 per month in 2021.

Upon the completion of the project, discharged ammonia levels are anticipated to be reduced by approximately 95%, therefore increasing water quality, the ability to recycle water, and survival rates of the nearly extinct Delta Smelt. Biological nutrient removal (BNR) and return activated sludge systems are other new additions that will also enhance water quality,costing approximately $500 M. Ammonia, nitrates, and other pathogens will be removed through granular media filtration, the addition of hypochlorite, sodium bisulphite, and disinfection layers that will improve the discharged water to a tertiary status that can then be used for landscaping, agriculture, and power plants. A two-mile outfall pipe will deliver effluent and discharge through a diffuser downstream of the Freeport Bridge in the Sacramento River where strong currents push the discharge to the surface of the river bottom. Effluent discharge release will be halted and transferred to emergency storage basins should the river flow rates fall and the required ratio of 14:1 instantaneous river flow to instantaneous effluent flow is not sustained. In drought conditions, flow is observed to be lower in the Sacramento River at this discharging location, however the number of emergency storage bins to meet regulatory mandates still withheld capacity to meet the 14:1 ratio.