Laserfiche WebLink
Page 4 <br />water the haul roads more frequently. In addition, a sand pile on the north • <br />end of the property has been vegetated, which appears to be of further <br />benefit. <br />An air quality permit will be required of this operation in the future. <br />Northern Con-Agg has made the appropriate application for that permit. <br />NOISE/HOURS OF OPERATION <br />Northern Con-Agg has indicated that they only wish to operate during the <br />hours that are currently allowed by the City Ordinance, which are 7:00 a.m. <br />to 7:00 p.m., Monday through Saturday. To further help control noise, the <br />strategic placement of equipment will be implemented. An example of this <br />would be having crushing and screening operations stay close to an excavated <br />bank which will deflect the noise away from adjacent residential dwellings. <br />Placement of stock piles will also be used. <br />Although there are not a large number of residential dwellings in close <br />proximity to Northern Con-Agg's operation, noise can be hard to predict and <br />houses much farther away than anticipated can be affected. Staff will need <br />the authority to deal with these issues, if and as they arise. <br />SHOP • <br />The shop associated with this request is an existing support facility for the <br />mining activities. The shop has the appropriate MPCA hazardous waste <br />generators license for the typical materials used. Northern Con-Agg is also <br />currently recycling the appropriate items from this shop and properly <br />disposing those items which cannot be recycled. Staff is recommending that <br />any storage associated with this facility either be indoors or screened. Having <br />a shop facility such as this for a mining operation, is to the advantage of the <br />City. A shop allows maintenance of equipment to take place indoors on a <br />concrete floor so that fuels and other fluids are not spilled on site. <br />GROUNDWATER MONITORING <br />Attached to this memo is a memorandum from B. A. Liesch and Associates <br />dated A4arch 15, 1995, regarding ground water concerns and testing. <br />Northern Con _9gg has indicated in their application that they anticipate the <br />bottom of their pit to be 10 feet above ground water. However, if the <br />materials and the market are favorable, they may excavate below the water <br />table using a drag line or dredge. Mining in exposed ground water increases <br />the concerns for water contamination. The conditions found later in this <br />memo regarding the frequency of testing and other contamination • <br />s:planning:pc:95-04 <br />