20.30.100 WHO district development standards.
A. Exemptions. Single-family and two-family dwelling units connected to a municipal sewer system are exempt from the WHO district requirements.
B. Best Management Practices for Fertilizer and Chemical Application on Agricultural Land. Agricultural uses within the WHO district shall implement best management practices known to the industry, including:
1. Avoid Excess Potential Contaminant Usage. Use the minimal amount of the potential contaminant that is necessary to achieve the desired result. Employ waste reduction and management strategies, and mandate responsible purchasing to reduce the threat of hazardous materials.
2. Proper Use and Handling. Train employees to follow instructions on labels to ensure proper use, handling, and application of potential contaminants.
3. Proper Storage and Disposal. Create and implement a chemical management plan that includes a list of chemicals and potential contaminants used, the method of disposal, and procedures for assuring that chemicals and potential contaminants are not discharged into waterways or to wellfield.
C. Sewer and Water Standards.
1. Abandoned Wells. All known abandoned wells shall be identified and sealed at the surface or capped with impervious materials in accordance with Rule 10 of 312 IAC 13.
2. Sanitary Sewer. Connection to a municipal sanitary sewer system shall be required unless the cost to connect to the municipal sanitary sewer exceeds three times the cost of a septic (i.e., on-site waste treatment) system.
D. Storage Tank Standards.
1. Above Ground Storage Tanks.
a. All tanks shall have corrosion protection for the tank and piping. Corrosion protection measures shall include elevating tanks, resting tanks on continuous concrete slabs, installing double-walled tanks, cathodically protecting the tanks, internally lining tanks, or a combination of the aforementioned options. All piping to the tank should be double-walled or located above ground or cathodically protected.
b. Above ground storage of liquid and/or petroleum products shall be limited to 2,000 cumulative gallons in all on-site storage tanks.
c. Storage of more than 300 gallons of liquid chemical or petroleum products for more than twenty-four (24) hours shall meet the following secondary containment requirements:
i. Secondary containment shall be capable of containing one hunded ten percent (110%) of the volume of the tank.
ii. Secondary containment shall be designed to prevent and control the escape of the contaminant into ground water for a minimum of seventy-two (72) hours; or designed and built with an outer shell and a space between the tank wall and the outer shell that allows and includes monitoring between the tank wall and outer shell.
iii. The secondary containment structure shall be properly maintained and shall be free of vegetation, cracks, open seams, open drains, siphons, or other openings that jeopardize the integrity of the structure.
iv. The secondary containment structure shall be designed to prevent the infiltration of precipitation.
2. Underground Storage Tanks.
a. New underground storage tanks (USTs) shall not be permitted.
b. Existing underground storage tanks shall only be replaced or upgraded with above ground storage tanks. [Ord. 12-27-11 § 3.10.]