Pocatello Water Pollution Control

Pocatello Water Pollution Control The Pocatello Water Pollution Control (WPC) department is responsible for operating and maintaining the city's sanitary sewer collection, transport and treatment system.

Pocatello's Water Pollution Control Plant (WPC) is located west of the City, has the primary responsibility of operating and maintaining the City's sanitary sewer collection, transport, and treatment system. The WPC Plant is one of the largest wastewater treatment facilities in Idaho. It has a design capacity of 12 million gallons per day and provides secondary treatment and nitrification. The WPC plant currently treats 7.5 million gallons per day of combined wastewater from both the City of Pocatello and the City of Chubbuck. On average, the Plant removes over 98% of the organic matter (measured as BOD), over 98% of suspended solids (measured as TSS), 95% of ammonia, and 80% of incoming phosphorus. The collection and transport system includes over 250 miles of sanitary sewer lines and 23 sewer lift/pump stations. Pocatello's Pretreatment Program protects the wastewater treatment plant from receiving contaminated industrial and commercial wastewater. These waste waters are often contaminated by a variety of prohibitive toxic, and otherwise harmful pollutants. The WPC Plant, which treats wastewater from homes and businesses and returns clean safe water to the Portneuf River, is not designed to accept or treat these types of wastewater. Industrial and commercial facilities are required to remove pollutants from their wastewater prior to discharging into the City's sanitary sewer system. This practice is known as pretreatment and is mandated by City Code and Federal Regulations. The City of Pocatello Social Media Terms of Use can be found at bit.ly/1l64djU

Mission: The mission of the Pocatello Water Pollution Control department is to collect and treat wastewater at the lowest practical cost while meeting regulations and providing excellent customer service.


Recently, WPC received the facility’s results from its participation in the second year of the Wastewater Energy Efficiency Cohort (WWEEC), an Idaho Power Commercial and Industrial Energy Efficiency program offering. The project cost $974.88 and the results letter announced the plant was able to save over 200,000 kWh of electricity.

“To put it another way, we were able to conserve enough power to light up 17 average homes in Idaho for a year,” said Jon Herrick, WPC Superintendent. “The reduction in electricity use will also lead to an estimated $10,000 in operational savings.”

“We take our stewardship of public funds very seriously,” said Jeff Mansfield, Public Works Director/City Engineer. “Opportunities like this are examples of our commitment to being environmentally conscious and fiscally responsible.”

Through the WWEEC, facility staff are shown how to identify and implement energy-conserving opportunities.


Water Pollution Control Dept. to Test Sewer Lines January 18

Crews with the City of Pocatello Water Pollution Control Department will be performing tests on sewer lines in the 6500 through 6700 blocks of South 5th Avenue Wednesday, January 18. Testing is scheduled to start at 9 a.m. and wrap up later that day. While testing is underway, north-bound traffic in the area will be limited to one lane.

During the test, crews will fill the sewer lines with a non-toxic and odorless smoke to determine where breaks in the lines are located. Residents may see smoke rising from manhole covers, roof vents, building foundations or yard cleanouts around the test area and smoke may also enter other structures in the area via dry p-traps connected to building drains. Should buildings fill with smoke officials advise residents to open windows and doors and allow the smoke to vent out of the building.

Residents who have questions are asked to contact Water Pollution Control at 234-6256. For more information on sanitary sewer testing, visit bit.ly/1Go74Pj.



Starting next month, crews will begin the process of replacing approximately 1,000 feet of sewer line along Highland Boulevard.

The work is slated to begin August 1 and will include replacing the 8-inch line, associated manholes, and service connections, as well as performing street repair to wrap the project up.

“In addition to replacing a section of line that is in poor condition, this project will make it easier on workers to access and maintain this piece of infrastructure,” said Jeff Mansfield, PE, Senior Engineer for the City of Pocatello.

Officials say while there may be delays, Highland Boulevard will remain open throughout the project. Gwen Street may see closures with detours in place for affected traffic.

“This project is another example of the City being proactive when it comes to infrastructure care and maintenance,” said Michael R. Jaglowski, PE, Public Works Director.

The project is expected to last about a month but due to unforeseen circumstances or inclement weather, the project schedule may be altered.

Officials would like to thank the public for their understanding and apologize for any inconvenience the work may cause.



Thanks to some help from an Idaho Power program, the City of Pocatello Water Pollution Control (WPC) plant is running a bit cleaner and greener.

Recently, WPC officials received a letter from the company detailing the facility’s accomplishments during the first year of the two-year Wastewater Energy Efficiency Cohort, an Idaho Power Commercial and Industrial Energy Efficiency Program offering. Through the company’s program, wastewater operators are shown how to identify and implement energy efficient operational opportunities and ensure that these opportunities continue to be implemented over the long term. Energy monitoring equipment was also installed at the WPC facility.

“We took a look at where and when it was possible to conserve power,” said Jon Herrick, Water Pollution Control Superintendent. “We’ve adjusted our pump times, blower amperages, and a number of other little things to add up to a big savings.”

The letter announced that the facility saved more than 270,000 kWh of electricity in the first year of the cohort, enough to power 22 average Idaho homes. According to the company, the decreased energy consumption will contribute to an annual operational savings of nearly $13,600.

“Going forward, we’ll continue to monitor our power use and look for additional ways we can cut back the plant’s consumption further,” Herrick said.

The project cost just over $4,000 and in addition to the first year savings, the WPC facility received an incentive payment from Idaho Power of a little more than $2,800. The effort has been part of a push by the City’s Public Works Director, Michael Jaglowski, PE, to increase efficiency and reduce costs in all departments that fall under the umbrella of Public Works.

“This is a great example of using technology and partnerships to bring a high level of service for the same or lowered cost,” said Jaglowski.

The City of Pocatello’s Water Pollution Control department treats approximately 7.5 million gallons per day of wastewater from both the City of Pocatello and the City of Chubbuck. Crews are also tasked with maintaining the collection and transport system that includes over 250 miles of sanitary sewer lines and 23 sewer lift and pump stations.

For more information on the Water Pollution Control department and WPC facility, visit pocatello.us/wpc.


The truth on E. coli
E. coli is a naturally occurring bacteria that lives in the lower intestines of warm-blooded mammals and is necessary for the digestion of food. A common source of E. coli in the Portneuf River is fecal matter; occurring from wildlife, livestock, and pets.
As a result, storm water and the many creeks from around our area flow into the Portneuf contributing to the E. coli count in the river. There is a partnership between the City of Pocatello, DEQ and the EPA to sample and monitor the river and creeks each month.
The average flow of the Portneuf River at Batiste Bridge is about 130 million gallons per day with an average of about 213 colonies/100 mL of E. coli. Here at the City of Pocatello Wastewater Treatment Plant we receive approximately 7.5 million gallons of wastewater a day containing more than 2419 colonies/100 mL of E. coli.
This wastewater is treated by Ultra-Violet disinfection and is discharged at an average of 24.9 colonies/100 mL of E. coli, well under our 576 daily limit mandated by the EPA. The City of Pocatello WPC department takes E. coli seriously. We are proud of our history of treating wastewater and are working diligently to make it even better.


Manhole Repairs Scheduled for Pole Line Road

Starting next week, the City of Pocatello Water Pollution Control Department has tentatively scheduled repairs of manholes along Pole Line Road.

Crews will be working from Cedar Street to Garrett Way to remove and replace damaged metal rings and covers, as well as broken concrete collars surrounding the manholes. The goal of the repairs is to bring the manholes back to level with the existing roadway to avoid further damage to the road.

During construction, one lane of traffic will be closed and motorists are encouraged to use alternate routes when possible. The work is scheduled to wrap up by the end of the week but due to unforeseen circumstances or inclement weather, the work schedule may be adjusted.

The public’s understanding and cooperation during construction is greatly appreciated and officials apologize for any inconvenience the work may cause.

Residents with questions are encouraged to contact the staff at Water Pollution Control at 234-6254.


Annual Sewer Jetting Begins This Week

Starting this week, crews with the City of Pocatello Water Pollution Control Department will begin the annual process of cleaning the city’s sanitary sewer lines.

Jetting the mainlines serves as the primary preventive maintenance procedure on the pipe network. Crews utilize a specialized truck to perform the task and the equipment uses highly pressurized water driven through nozzles to clear material and debris that may be trapped in the line. The work is estimated to wrap up in the fall.

Pocatello is served by more than 250 miles of sanitary sewer lines and 23 sewer lift/pump stations. The Water Pollution Control facility located on Rio Vista Road treats roughly 7.5 million gallons of wastewater daily.

If the public has any questions, they are invited to contact the staff with Water Pollution Control at 234-6254.


As most of you might have heard the WPC plant had a isolated discharge on the 31st of March that exceeded the NPDES permit limit for E-Coli bacteria of 576 colonies/100ml. There was no threat to any citizen of Pocatello or Chubbuck in this release due to the plant being located downriver from both of the Cities. The treated wastewater from the WWTP enters the Portnuef River at a volume of 7 CFS mixing with the river water of 200 CFS and being diluted quite a bit. If you have any questions, please let us know.


10733 N Rio Vista Rd
Pocatello, ID

Opening Hours

Monday 07:00 - 15:30
Tuesday 07:00 - 15:30
Wednesday 07:00 - 15:30
Thursday 07:00 - 15:30
Friday 07:00 - 15:30


(208) 234-6254


Be the first to know and let us send you an email when Pocatello Water Pollution Control posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Pocatello Water Pollution Control:

Nearby government services