Laserfiche WebLink
2) If the wastewater discharge is to a subsurface sewage treatment system <br />(SSTS), describe the system used, the design flow, and suitability of site <br />conditions for such a system. If septic systems are part of the project, <br />describe the availability of septage disposal options within the region to <br />handle the ongoing amounts generated as a result of the project. Consider <br />the effects of current Minnesota climate trends and anticipated changes in <br />rainfall frequency, intensity, and amount with this discussion. <br />There are subsurface sewage treatment systems (SSTS) for the existing <br />properties within the study area. The residential properties within the project area <br />will remain until such time development starts. The SSTS systems will be <br />pumped, collapsed, filled, and abandoned per the MPCA chapter 7080 code, <br />along with any county and city requirements as well. <br />No subsurface sewage treatment systems (SSTS) are anticipated within the <br />AUAR study area for either development scenario. <br />3) If the wastewater discharge is to surface water, identify the wastewater <br />treatment methods and identify discharge points and proposed effluent <br />limitations to mitigate impacts. Discuss any effects to surface or <br />groundwater from wastewater discharges, taking into consideration how <br />current Minnesota climate trends and anticipated climate change in the <br />general location of the project may influence the effects. <br />No wastewater discharge to surface waters is anticipated for either development <br />scenario. <br />c. Stormwater— Describe changes in surface hydrology resulting from change of land <br />cover. Describe the routes and receiving water bodies for runoff from the project site <br />(major downstream water bodies as well as the immediate receiving waters). Discuss <br />environmental effects from stormwater discharges on receiving waters post - <br />construction, including how the project will affect runoff volume, discharge rate, and <br />change in pollutants. Consider the effects of current Minnesota climate trends and <br />anticipated changes in rainfall frequency, intensity, and amount with this discussion. <br />For projects requiring NPDES/SDS Construction Stormwater permit coverage, state <br />the total number of acres that will be disturbed by the project and describe the <br />stormwater pollution prevention plan (SWPPP), including specific best management <br />practices to address soil erosion and sedimentation during and after project <br />construction. Discuss permanent stormwater management plans, including methods <br />of achieving volume reduction to restore or maintain the natural hydrology of the site <br />using green infrastructure practices or other stormwater management practices. <br />Identify any receiving waters that have construction -related water impairments or are <br />classified as special as defined in the Construction Stormwater permit. Describe <br />additional requirements for special and/or impaired waters. <br />AUAR Guidance: For an AUAR the following additional guidance should be followed in <br />addition to that in EA Guidelines: <br />It is expected that an AUAR will have a detailed analysis of stormwater issues <br />• A map of the proposed stormwater management system and of the water bodies that will <br />receive stormwater should be provided <br />• The description of the stormwater systems would identify on -site and "regional' detention <br />ponding and also indicate whether the various ponds will be new water bodies or <br />converted existing ponds or wetlands. Where on -site ponds will be used but have not yet <br />been designed, the discussion should indicate the design standards that will be followed. <br />Lino Lakes Main Street - AUAR 44 July 2025 <br />Page 52 of 617 <br />