The“WP” Well Field Protection Overlay District shall be subject to the following groundwater protection standards.
(A) Use, storage, handling, and/or production of regulated substances in conjunction with permitted and conditional uses in this district shall be limited to:
(1) Aggregate of regulated substances. The aggregate of regulated substances in use, storage, handling, and/or production may not exceed 20 gallons or 160 pounds at any time; and
(2) Total use of regulated substances. The total use, storage, handling, and/or production of regulated substances may not exceed 50 gallons or 400 pounds in any 12-month period.
(B) A limited exclusion may be authorized for non-routine maintenance or repair of property or equipment. The use, storage, handling, and/or production of regulated substances under this exclusion shall be limited to:
(1) The aggregate of regulated substances in use, storage, handling, and/or production may not exceed 50 gallons or 400 pounds at any time;
(2) The total use, storage, handling, and/or production of regulated substances may not exceed 100 gallons or 800 pounds in any 12-month period; and
(3) The application of U.S. EPA approved agricultural chemicals by licensed personnel using U.S. EPA best recommended practices. Below ground applications in excess of 100 gallons or 800 pounds in any 12-month period shall require 72-hour prior notice to the City Manager or his or her authorized designee.
(C) A limited exclusion may be authorized for regulated substances which are cleaning agents, provided, however, the cleaning agents are packaged for personal or household use or are present in the same form and concentration as a product packaged for use by the general public, and provided the aggregate inventory of the cleaning agents shall not exceed 100 gallons or 800 pounds at any time. In no case shall regulated substances claimed under this exclusion include hydrocarbon or halogenated hydrocarbon solvents.
(D) A limited exclusion may be authorized for on-site storage of a maximum one-year supply of agricultural chemicals to be used for routine on-site agricultural operations, provided the substances are stored in standard approved packaging and the chemicals are applied to cropland under Best Management Practices as indicated by soil tests, agricultural experts, or label directions approved by the United States Environmental Protection Agency (EPA) or the State Department of Agriculture. This limited exclusion also applies to the application of agricultural chemicals to cropland where the chemicals are brought in from other locations. This provision does not exempt the agricultural chemicals either stored on-site or brought in from other locations from the inventory, spill reporting, and underground storage tank protection requirements of the “WP” Well Field Protection Overlay District.
(E) With the exception of residential use of heating fuels in tanks having a capacity equal to or less than 500 gallons, the underground storage of fuel and lubricants for vehicle operations and fuel for building and/or process heating in conjunction with permitted and conditional uses in this district shall be in tanks secondarily contained and monitored. The installations shall be subject to approval by the City Manager, or his or her designee.
(F) Notwithstanding other provisions of this chapter, nonconforming uses in this district presently utilizing underground storage tanks for fuel and lubricants for vehicle operations and fuel for building and/or process heating shall be permitted to replace existing tanks with those constructed as provided for new installation and not exceeding the capacity of existing tanks. Replacement of underground tanks for regulated substances other than the above-noted fuels and lubricants is not permitted.
(1985 Code, § 8-3-6G.) (Ord. 1996-5, passed - -1996) Penalty, see § 10.99 
