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• Moon Marsh page 5 infiltration elements and other techniques. It also includes estimated stormwater management recommendations for specific development areas. These estimates in the AUAR cannot be considered strict requirements because they were broad and based on general soil types and assumptions about impervious areas related to development. However, they do provide some guidance . The most general estimate is that 0 % -5% of the developable area would be needed for stormwater management (AUAR Fig. 17 -3). On a little less general estimate, the Moon Marsh site is labeled development area A -FR, with an estimated need of 0.13 acre (5660 sf) for stormwater management (AUAR Table 17 -5). The specific analysis and design for the project includes 4200 sf as infiltration basins. This falls within the broad estimate range and, considering the scale of the site, is comparable to the less broad estimate. The AUAR requires that runoff rates will be at or below pre - development conditions. This is a standard requirement everywhere in the city, enforced on all projects. The AUAR also requires that runoff volume be no more that 150% of pre - development runoff. Archaeological Survey: A Phase 1 archaeological survey was completed for the site and submitted with the project, as required by the AUAR. Records include an identified site to the east, but only low density artifact scatter was found on the Wessel site. The survey investigator does not recommend further evaluation. Rare Plant Survey: The AUAR mitigation plan states that due to the incidence of rare plant species in nearby wetland habitats, the City will require rare plant surveys and the mapping of rare plant locations prior to disturbance of areas of certain soil characteristics. The project site includes these soils. A rare plant survey is required and was performed on June 26. Several of the higher quality wetland habitats within the site contain suitable habitats for select rare plant species. However, no state - listed or otherwise rare plant species were detected. Planned Unit Development Section 2, Subd. 10. of the zoning ordinance includes the PUD standards. The zoning ordinance provides for two types of PUD. We have used a rezoning PUD on mixed use projects and others with exceptional design issues such as conservation developments in urbanized areas (with city utilities). We also have a provision for a conditional use permit for a PUD. A rural residential PUD is specifically designated for the conditional use permit PUD option. It is important to review the purpose and intent of a PUD. The following passages are taken from the zoning ordinance. Subd. 10. PUD, Planned Unit Development. A. Purpose and Intent. The purpose of this section of the Zoning Ordinance is to provide for the grouping of Tots or buildings for development as an integrated, coordinated unit as opposed to traditional parcel by parcel, piecemeal, or sporadic approach to development. This section is intended to introduce flexibility of site design and architecture for the conservation of land and open space through clustering of lots, buildings and activities, which promote the goals outlined in the Comprehensive Plan or serve another public purpose. It is