Sewer Issues

- Call Proctor City Hall at (218) 624-3641

- After Hours Call (218) 624-7788

Inflow & Infiltration (I&I)

Extra water in the sewer system is a problem because: It takes up capacity in the sewer pipes and ends up at the regional wastewater treatment plants where it must be treated like sewage, resulting in higher treatment costs. Requires new and larger wastewater facilities to convey and treat larger volumes of flow, resulting in higher capital expenditures. I&I flows contribute to sewer system overflows into local homes and the region's waterways, negatively impacting public health and the environment. We estimate that inflow and infiltration makes up 75 percent of peak flows during winter, and much of this comes from private property. Protecting the environment and decreasing wastewater treatment costs are the benefit of a regional I&I control program. Impacts of peak I&I on wastewater flows While there are multiple reasons why portions of the conveyance system are at or near capacity, a major contributing factor is the capacity taken up by I&I flows in the system. Several capacity related capital improvements are needed in the regional system that are directly related to excessive I&I entering the system upstream of the needed improvements. The following figure demonstrates how peak I&I flows can far exceed base flows. I&I that enters the collection and treatment system also triggers higher operating costs for the region. Operating costs for conveyance facilities such as pump stations are proportional to flow volumes passing through the facilities. I&I also increases treatment costs because more chemicals and electricity are used during peak flows at the treatment plants.

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Here's what you can do to reduce inflow and infiltration in the sewer system, to help boost our capacity to treat wastewater during the wet season. Inspect your roof gutters and downspouts to see if they are connected to the sewer system. If so, have them disconnected. Direct downspouts onto lawn and garden beds or hook up a rainbarrel or cistern to your downspouts.

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Fats, Oils and Grease

In the wastewater treatment world, a fat free home in a happy home - in the pipes, anyway. Fats, oils and grease (FOG) materials often enter your home's sewer pipes in liquid form, usually in the kitchen sink. The FOG separates and floats on the water in the pipe, solidifying as it cools down. These materials can coat the sewer pipe walls and build-up over time. By placing your cooled and solidified cooking fats (picture the pan full of drippings following your Sunday morning bonanza, or that really rich shortening-based frosting) in a container instead of the drain, you protect your pipes and ultimately your home from a potentially damaging clog. This holds just as true for septic users as for those connected to the sewer. Clogs create sewage overflow and back-ups, threatening the health of your family and the environment. If you don't already have one, grab a container and use it on your counter top as a handy grease receptacle. Discard solidified contents in your trash can. Other greasy dilemmas at home include large amounts of waste cooking oils, like leftovers from deep frying. These wastes also do not belong down the drain, but they pose a more difficult disposal problem because they are liquid. Don't place liquids in the trash, but instead use it again if appropriate; just strain and store in its original container for the next fry-fest, or consider passing it on to a recycler. Believe it or not, this liquid has value beyond you turkey fryer. Give your waste cooking oil a second chance to bring joy to this world by bringing it to WLSSD's Household Hazardous Waste facility at 27th Avenue West and the waterfront for free disposal. Edible oil recyclers use this product, called "yellow grease", to make products ranging from bio-fuels to pet and livestock feed additives. If you aren't able to make it to the recycle bin, mix liquid edible oils with unscented kitty litter or sand to create a solid, and the place the mix in a plastic bag and put in your trash can. Sewer overflows from FOG clogs are entirely preventable. Be part of the solution, and think before you put it in the sink! Proper commercial Fats, Oils, and Grease handling is much the same as residential handling, with few additional requirements. Proctor requires businesses which handle these items to have properly installed grease interceptors, and additionally suggests that businesses follow the DO's and DON'Ts in the Grease FAQ. The Guide To Grease Interceptors from he Plumbing and Drainage Institute explains grease interceptors in more detail. (File hosted with their permission). For additional information, please see