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Dewey Town Portage County
City Zoning Code

7.2.6

Groundwater Protection Overlay District C.

(1)

Intent. District C of the groundwater protection overlay district is the area of land which contributes water to the municipal well starting at the line which delineates the ten-year time of travel and ends at the line delineating the 20-year time of travel. Management measures in this District are the least restrictive of the recharge districts. Agricultural Best Management Practices (BMP) minimizing use of pesticides and fertilizers are strongly encouraged.

(2)

Permitted Uses. The following uses are permitted within Groundwater Protection Overlay District C, provided that such uses are subject to minimum separation distances of Wis. Admin. Code ch. NR 8.11.12(5)(d). Uses not listed here or in section 7.2.6(3) are considered prohibited uses unless a determination of similarity to a permitted or special exception use (based on potential for groundwater contamination) is made by the Zoning Administrator.

(a)

All uses permitted in Groundwater Protection Overlay Districts A and B.

(b)

Salt and deicing storage, including sand salt combinations.

(c)

Aboveground hydrocarbon and petroleum product storage tanks accessory to a permitted use or special exception use.

(d)

Unsewered residential uses, subject to the conditions in section 7.2.5(3).

(3)

Special Exceptions. The following uses may be allowed as special exceptions within Groundwater Protection Overlay District C, provided that such uses are subject to minimum separation distances of Wis. Admin. Code ch. NR 811.12(5)(d).

(a)

Below ground hydrocarbon, petroleum, or hazardous chemical bulk storage tank;

(b)

Animal confinement facilities;

(c)

Any unsewered commercial, manufacturing and/or industrial use;

(d)

Any commercial, manufacturing, or industrial use where hazardous chemicals are an integral part of such use including but not limited to:

1.

Bulk fertilizer and/or pesticide facilities;

2.

Dry cleaning businesses;

3.

Electroplating facilities;

4.

Exterminating businesses;

5.

Gas stations;

6.

Paint and coating manufacturing;

7.

Printing and duplicating businesses.

(e)

Asphalt and concrete products manufacturing;

(f)

Automobile, truck, agricultural implement and equipment, municipal, small engine and other vehicle repair of a commercial nature;

(g)

Bus or truck terminals;

(h)

Cemeteries;

(i)

Junk yards or auto salvage yards;

(j)

Landfills or waste disposal facilities;

(k)

Nonmetallic mining;

(l)

Recycling facilities;

(m)

Septage and/or sewage sludge spreading;

(n)

Slaughterhouses;

(o)

Spray wastewater facilities;

(p)

Wastewater treatment or disposal facilities that are commercial, industrial, or municipal.

(4)

Design And Performance Standards. The following standards and requirements shall apply to all uses permitted within Groundwater Protection Overlay District C.

(a)

Pesticide and fertilizer storage is permitted at the location of retail sales of these products, provided that the products are delivered in retail quantity containers and no repackaging and/or mixing is done on site.

(b)

Bulk liquid pesticide/fertilizer storage containers exceeding 55 gallons are permitted providing the containers are located within a leak proof containment area not less than 125 percent of the volume of the largest container. ICC approved transport containers do not require containment.

(c)

All storm drainage from commercial and industrial sites shall be retained on site or discharged to a municipally operated storm drain. If retained on site, storm water shall be discharged to settling ponds where it will percolate through at least six inches of topsoil with vegetation. Use of drywells or other subsurface drains for stormwater drainage is prohibited.

(d)

Hazardous/toxic materials storage and use. Site plan review required, including description of all materials, operational practices to prevent groundwater contamination, contingency plan for accidental discharges, and a proposed disposal plan for anticipated wastes.

(e)

Salt storage must conform to standards in Wis. Admin. Code ch. Trans. 277.

(f)

Minimum lot size for unsewered lots shall be two acres, except as provided in section 7.2.5(3)(a).

(g)

Fertilizer, animal waste, septage, and sewage sludge shall not be applied at rates which exceed the nutrient requirements of the crops grown on the application site as listed in the University of Wisconsin Extension publication A2809, Nutrient Application Guidelines for Field, Vegetable, and Fruit Crops in Wisconsin.

(h)

Pesticide and fertilizer storage is permitted for on-farm use by the owner or operator.

(i)

Conduct and management of agricultural activities shall be subject to a farm plan (based on the potential for groundwater contamination) utilizing best management practices and applicable federal, state, and local standards to be approved by the land and water conservation section.

(5)

Prohibited Uses. The following uses are prohibited in this district:

(a)

Hazardous/toxic waste facilities;

(b)

Radioactive waste facilities.