8.1 SR 10-18-2021 - Laserfiche WebLink

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Wastewater & Sewer Service The City of Elk River owns and operates its sanitary sewer collection and wastewater treatment system. This system includes approximately 81 miles of sewer lines and 21 lift stations that transport sewage to the treatment plant that is located near the intersection of US Highways 10 and 169. Evaluate the Potential Impact of the Urban Service Expansion Areas on Wastewater Services Recognizing the important linkage between commu- nity growth and the capacity to handle wastewater, the city completed a Wastewater Treatment Facility Plan in February 2013. This plan evaluated capacity of existing facilities and the ability to reliably achieve regulatory standards for wastewater discharge. The 2013 plan led to the construction of a new plant in 2017, doubling the city's treatment capacity from approximately 2.2 million gallons per day (mgd) to 4.5 mgd. Currently, the plant is treating 1.35 mgd. The city's investment in upgrading treatment capacity was based on estimates of 2035 daily flow and projected areas of development. With further projected expansion of the Urban Service Area, ongoing evaluation of the projected daily flow will be necessary in order to identify whether future expansion of the wastewater treat- ment plant is needed. The Wastewater S Sewer Service map highlights the areas of the city for future wastewater service both within and outside the current Urban Service Area as identified in the Wastewater Treatment Facility Plan. In addition to these areas, the map also highlights areas identified for waste- water service expansion that will be included in the future Urban Service Area, these are lands surrounding the Ranch Road Corridor, the Twin Lakes Road corridor, and segments of the Gravel Mining Area anticipated to be available for development in the next 15 years. Proposed Urban Service Area Extensions Future Development Areas within Wastewater Treatment Facility Plan U.S.A. Future Development Areas outside Wastewater Treatment Facility Plan U.S.A. While there appears to be sufficient capacity at the treatment plant, wastewater services could potentially be constrained by capacity of the pipeline system that conveys wastewater to the plant. For instance, the city has identified capacity concerns in the conveyance system in northeastern Elk River. As that part of Elk River grows, the collection system will likely need to be expanded in order to meet the wastewater service demands. Similar studies should be conducted for new growth areas so that the collection system can be managed and maintained. Elk River Comprehensive Plan • Infrastructure 07CL\arri]C1C11: WV IMAW] 01WO 99