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Item -by -item guidance Chapter ing monitoring wells and dewatering wells. Consult the well management program of the Minnesota Department of Health for more information about wells and well construction requirements. If the project requires the creation, connection or a change to public water supply, it is important to identify wells that will be used as water sources. Plans for the creation, connection or changes to a public water supply may need to be reviewed and approved by the Minnesota Department of Health. Contact the department's public water supply program for more information. To locate existing wells, the Minnesota Department of Health recommends conducting a field well inventory on properties affected by the project. Special attention should be paid to areas where construction will take place and where any farmsteads, homes or industrial wells may have been located in the past, as well as along boundaries where wells may exist on adjacent properties. Locating existing wells is important to maintain dis- tances between wells and sources of groundwater contamination. Existing wells cannot be buried during construction without first being properly sealed. If no wells are believed to exist on the site, your response must indicate how this was determined; for ex- ample, by a field survey. All wells that are no longer going to be used must either be sealed by a licensed well contractor according to Minnesota Rules, chapter 4725, or have a maintenance permit from the Minnesota Department of Health, or from the local Community Health Services Agency, if there is a delegation agreement for local well regulation. Currently, this includes Dakota, Blue Earth, Goodhue, LeSueur, Mower, Olmsted, Wabasha, Waseca, and Winona counties and the cities of Minneapolis and Bloomington. All wells constructed since 1974 were assigned a Unique Well Number, provided to the property owner by the licensed well contractor. The number can also be obtained from the Minnesota Geological Survey or from some local planning and zoning offices. 14. Water - related land use management districts Shoreland areas refer to developments within 1,000 feet of a lake, pond or flowage (reservoir) or within 300 feet of a river or stream. If a flood plain has been delineated by ordinances, then the outer limits of the flood plain delineate the shoreland jurisdiction. The local planning and zoning office should be contacted regarding local shoreland and flood plain ordinances that may apply. Special wild, scenic, and recreational river districts are identified in the appendix. Contact the local planning and zoning office or the applicable DNR Regional or Area Hydrologist's office regard- ing setbacks and other restrictions which apply along these rivers. Shoreland, flood plain and wild or scenic rivers land use districts are protected by special zoning ordinances designed to protect the resources of such lands. The EAW should discuss whether the project fully complies with all these special zoning requirements. The EAW should also indicate whether the applicable ordinances have been approved by the DNR; this information can be obtained from the DNR regional or area hydrologist's offices. 15. Water surface use Provide an estimate of the current and projected watercraft use, including the number of acres of water surface per watercraft. In assessing impacts on fish and wildlife resources, consider the presence of colonial waterbird nesting colonies; nests of bald eagles, osprey or loons; important waterfowl feeding or brooding areas; and other resources sensitive to disturbance. If applicable, discuss any mitigation measures that will be used to minimize conflicts, such as controls on watercraft and their sizes, motors and sizes, speed limits and area zoning. 16. Erosion and sedimentation Be sure to address both construction and post - construction phases in describing erosion and sedimentation control. Post - construction control measures may be described here or under item 18. NOTE: If the project will grade or alter five or more acres, an NPDES stormwater permit may be required from the Minnesota Pollution Control Agency. Steep slopes of 12 percent or more and erosion prone soils, as indicated in item 11, should be described and shown on the site plan or on a separate grading plan. Specific erosion and sedimentation control measures should be described. If the proposer has not prepared definite plans for these measures, the requirements of the local govemmental unit should be described. If erosion control plans or grading plans have been prepared they should be attached. Special attention should be given to discussing erosion control on any identified steep slopes or erosion prone soils. If significant amounts of soils will be excavated, the EAW should identify the types involved, to where they will be relocated and how they will be used. 17. Water quality: surface water runoff • a. The intent of this question is to characterize the effect of the project on the amounts and the composition of stormwater runoff from the site and the techniques planned to minimize adverse quantity and quality impacts. The emphasis should be on post - construction stormwater impacts and on permanent mitigation measures rather than on erosion and sedimentation control dur- ing construction, which should be discussed under item 16. The amount of detail provided and the level of sophistication of the analysis should be commensurate with the magnitude of the potential impacts. For example, if the project will only cause a Environmental Quality Board 9