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' ` ` ` - 3 - per second would completely insure the safety and structural integrity of both the City water tower and the City' s new drilled water well which are located in excess of 2500 feet from the South property line. " Unquote. As I indicated , after much discussion , thought and consideration of the facts, the Town of Cottage Grove Planning & Zoning Committee & Town Board approved of our � CUP request with these conditions: � 1 . Maximum 400' to South from current CUP line. 2. Maximum 2.0 PPV at Koch Pipeline. 3. $5 million Umbrella Insurance Policy (which could be called on if any damage occurs) . 4. Maximum 20 years to remove the rock on the new CUP area In our other quarries in Dane County, we normally drill 3" diameter holes approximately 40' to 45' deep & shoot approximately 150 to 200 holes at a time with homes & wells, which are as close as 1600 feet away, with no problems in the past. A 3" diameter hole has approximately 3. 5 lbs. of explosive per vertical foot (VF) . The top 4 feet of the hole is not filled so a 45' hole gets filled approximately 41 feet . Therefore, 41 VF x 3. 5 lbs. /VF = 143. 5 lbs. per hole x 200 holes = 28,700 lbs. total of explosive per shot. Because of the very strict Town of Cottage Grove Blasting Ordinance (which I believe is the strictest in Wisconsin & possible even nationally) . One must obtain a permit and give a minimum 48 hours notice to anyone requesting notification before any shot can take place. In addition , the maximum size shot is a total of 30 holes a maximum 20 feet deep with a minimum 200 feet away from any structure not owned by the permittee. Therefore, the maximum shot in the Town of Cottage Grove is approximately 16 VF x 3 . 5 lbs. /VF = 56 lbs. x 30 holes = 1680 lbs. total of explosive per shot ( 1680 lbs. versus 28,700 lbs. is 5.8% of the total we use in other locations with no problems) . I ' ve attached a copy of a portion of the City of Madison map, which shows the location of Wingra Stone' s over 40 1 year old quarry which is on both sides of County Highway PD (McKee Road ) . It also shows the location of a 12" (40,000 psi steel pipe) high pressure gas main located on the north side of McKee Road . The map also shows the location of 2 City of Madison Water Towers which are approximately within 1700 feet of the Wingra quarry . ' There are pictures attached showing the homes which are next to the west side of the quarry in Prairie Hills. There are pictures also showing the water towers and the