Population projections for service areas within NR 121, Wis. Requirements for population projections are addressed in s. Both sets of limits would be necessary in order to complete the cost-effectiveness comparison of the staged alternative and the normal 20-year design alternative. If a staged project is to be evaluated, the effluent limits should be obtained for both the 20-year design flow and the design flow for any lesser staged design period. This must be justified, however, by a cost-effective analysis performed over a 20-year planning period. Code, it is possible to stage the construction of treatment facilities over time periods of less than 20 years. The Regional Planning Commission or other designated agency responsible for implementation of the area-wide plan must document that sewer service area and population projections conform to the area-wide plan.Īs indicated in s. Code, designated planning area or in a community larger than 10,000 people, then the sewer service area must conform to the recommendations of the applicable area-wide water quality management plan as approved by the department. If the facility is located in a NR 121, Wis. A sewer service area shall be identified. The 20-year period shall commence with the anticipated start-up of the proposed new facilities. Code, a 20-year planning period shall be used for wastewater facility planning. The basic purpose of facility planning is to assess the condition of a sewerage system, establish a need for improvement, evaluate options to address system needs and to identify the cost-effective alternative. Wastewater facility plans shall be prepared for each reviewable project involving new or modified sewerage systems owned by municipal or other non-industrial entities pursuant to s. Please contact municipal plan review staff (see "Municipal projects, septage storage facilities and large POWTS" contacts listed under "Plan Review Contacts" below) to discuss review timelines if submitting a facility plan for a project that is intended to meet that application deadline. Due to workload, DNR staff may be unable to review new facility plan submittals before the Clean Water Fund 2023 Principal Forgiveness deadline (Sept.
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