Ice Pigging update 3/27/20

This past week, Environmental Utilities and Suez completed the ice pigging of Sweetwater Creek, and began work in Verandah Lakes, Magnolia Green, and Anthem Park. Next week ice pigging will continue in Anthem Park, Verandah Lakes, Magnolia Green and finish in Cypress Preserve. At this point in time, we anticipate ice pigging work will continue even while the City is in the shut down mode for the next two weeks. The City has entered into a contract with Suez to continue the ice pigging into the month of April tentatively through May 1st.  

 Staff worked on finalizing the proposed water lines to potentially be cleaned through more traditional pigging with a pipeline pigging company. The company will be providing a contract proposal to the City hopefully within the next week. As stated previously, the work of this company would complement and supplement the work of the current ice pigging which would accelerate some of the work. More information will be provided on this company’s process and areas of work if agreement is reached with the company.

 Customer Service is continuing to survey customers in developments that have received ice pigging in order to gauge customer satisfaction and gain feedback on the success or any customer issues that may have occurred as a result. The survey is being distributed through Constant Contact and is sent to those customers for whom Customer Service has e-mail addresses. Surveys will be conducted of Sweetwater Creek customers in the coming week.

Information is being disseminated to customers in a bill insert and through the website to flush their hot water heater after the water line serving their residence has received the ice pigging. Detailed step-by-step instructions are provided in both the bill insert and on the website.

We would like to hear from those customers who are still seeing discolored water/particles, or experiencing low pressure after ice pigging is completed. Please contact our Customer Service Department at 407-957-7344, so we have record of the occurrence and can attend to accordingly.    

Update 3/13/20
This past week, Environmental Utilities and Suez completed the ice pigging of Canoe Creek Lakes and the main transmission line from Water Plant No. 4 to Old Canoe Creek Road. The transmission line ice pigging required two ice trucks, the second one became available this week. Next week ice pigging will resume in Sweetwater Creek.

   The City continues to negotiate with Suez to extend ice pigging that would extend operations through the month of April. The issue is under review by staff with a desire to continue the ice pigging operation.

   Meanwhile, staff has entered into discussions with another pipeline pigging company to provide services that would complement and supplement the work of the current ice pigging and which would accelerate some of the work. More information will be provided on this company’s process and areas of work if agreement is reached with the company.

    Customer Service is continuing to survey customers in developments that have received ice pigging in order to gauge customer satisfaction and gain feedback on the success or any customer issues that may have occurred as a result. The survey is being distributed through Constant Contact and is sent to those customers for whom Customer Service has e-mail addresses. Surveys will be conducted of Canoe Creek Lakes customers in the coming week.

    Information is being disseminated to customers in a bill insert and through the website to flush their hot water heater after the water line serving their residence has received the ice pigging. Detailed step-by-step instructions are provided in both the bill insert and on the website.

     We would like to hear from those customers who are still seeing discolored water/particles, or experiencing low pressure after ice pigging is completed. Please contact our Customer Service Department at 407-957-7344, so we have record of the occurrence and can attend to accordingly.    

Update 2/27/20
The “ice pigging” process, activated on February 10, heads toward week four, targeting the most affected by discolored water and sediment. Suez North America, the company contracted to perform “ice pigging” of the main water lines  along Old Canoe Creek Road. Ice pigging is now being done in residential neighborhoods located between Old Canoe Creek Road and Canoe Creek Road. At this time, ice pigging is scheduled to continue through the third week of March and the City is in discussions with the company to extend the contract for additional work.

Ice pigging is an innovative process developed in Europe; it completely cleans the inside of a water line through the process of injecting a thick slurry of ice into a segment of a water line through a fire hydrant. The slurry moves along the inside of the pipe pushing out everything in the line ahead of the slurry (pig) through another fire hydrant downstream. 

“At this point, we are guardedly optimistic that this effort will prove successful,” said Brian Wheeler, interim utilities director. “We are seeing very good results at this early phase and that’s very encouraging.”

Prior to the start of this process the water storage tanks at Water Plant No.4, where the issue began, were cleaned to ensure that sediment that had accumulated in the tanks was removed.

The polishing filters at Water Treatment Plant No. 4 have been in operation since early December. The finished water from the plant is not discolored and does not contain any sediment particles. Working closely with the contractor, the water plant staff continues to monitor the systems to ensure they are in proper working order. With the water treatment plant operating properly the focus is on removing the accumulated sediment and discoloration from the distribution system with the ice pigging.


water bottles

*Updated Ice Pigging Schedule-3/13/2020

3/16/2020

Sweetwater Creek

Sweetwater Boulevard, Channing Drive, Gina Anne Court, Deata Court, Summer Raye Court, Sweetgum Street, Giselle Court

3/17/2020

Sweetwater Creek

Summer Raye Court, Deata Court, Gina Anne Court, Sweetwater Boulevard, Sweetheart Court, Giselle Court

3/18/2020

Verandah Lakes

Lafayette Trace Drive, Marietta Way, Asheville Lane

3/19/2020

Magnolia Green

Flowering Peach Lane, Cedar Hammock Trail, Cedar Hammock Court

3/20/2020

Anthem Park

Centennial Avenue, Continental Street

3/23/2020

Anthem Park

Capital Boulevard, Patriot way, Nations Way, Blount Trail, Remembrance Avenue, Justice Lane, Congress Lane, Banner Lane, Rufus King Drive, Continental Street

3/24/2020

Magnolia Green & Anthem Park

Cedar Hammock Court, Patriot Way, Nathan Hale Boulevard, Valley Forge Drive, Remembrance Avenue, Continental Street

3/25/2020

Anthem Park

Betsy Ross Lane, Remembrance Avenue, Fort McHenry Boulevard, Patriot Way, Nathan Hale Boulevard, Continental Street

3/26/2020

Anthem Park

Continental Street, Capital Boulevard, Senate Avenue, Betsy Ross Lane, South Florida Water Management Building

3/27/2020

Magnolia Green & Cypress Preserve

Flowering Peach Lane, Cedar Hammock Trail, Cypress Grove Court, Cypress Forest Lane, Cypress Tree Trail, Cypress River Road, Cypress Dome Court, Cypress Landing Lane



2/5/20

City Will Activate “Ice Pigging” Next Week To Clean Water System

Beginning Monday, Feb. 10, the City of St. Cloud will activate an innovative new technology known as “ice pigging” intended to effectively clean city water lines. The process will be conducted in some of the most affected residential communities beginning with Old Canoe Creek Road from Neptune south to Zion. The initiative is expected to be completed by March 23.

The ice pigging process will be activated through the use of city fire hydrants where ice slurries are to be injected in order to travel through water lines. The ice essentially scrapes away and captures residual particles that have appeared in residential water. Particles and discoloration are residual effects from failed polishers at the city’s main water plant. They have been replaced with new polisher filters which became operational in December. While the new filters work properly and despite an aggressive unidirectional flushing effort, sediment and discoloration in water has not been completely resolved, prompting the decision to engage the ice pigging process.

“We are optimistic that this process will substantially improve and hopefully resolve the issue of sediment and discoloration for those communities,” said Brian Wheeler, Interim Director of Environmental Utilities for St. Cloud.

The service is expected to conclude on March 23 and will be conducted by Suez Environmental North America.  The cost is estimated at $454,000 and is being paid from Utility contingency funds; citizens will see no rate increase as a result of this process.

The City will begin customer notifications that will direct residents when not to use water during the actual ice pigging process, which is expected to last between two and four hours, as well as the work schedule. Updates will be posted on the City’s social media sites along with Frequently Asked Questions which are updated on an as needed basis.

See how ice pigging works in this video: