No permit to operate shall be issued for any underground storage tank or facility installed on or before January 1, 1984, and used for the storage of hazardous substances unless the following actions are taken:
A. On or before July 1, 1985, the owner shall outfit the facility with a monitoring system capable of detecting unauthorized releases of any hazardous substances stored in the facility, and thereafter, the operator shall monitor each facility, based on materials stored and the type of monitoring installed.
B. Provide a means for visual inspection of the tank, wherever practical, for the purpose of the monitoring required by subsection (A)(1) of this section. Alternative methods of monitoring the tank on a monthly, or more frequent basis, may be required by the permitting authority, consistent with regulations of the board.
The alternative monitoring methods include, but are not limited to, the following methods:
1. Precision testing as defined in National Fire Protection Association Pamphlet 329, "Recommended practice for handling underground leakage of flammable and combustible liquids," as amended, for proving the integrity of an underground storage tank and piping system at time intervals specified by the board.
2. A groundwater monitoring well or wells which are down gradient and adjacent to the underground storage tank, vapor analysis within a well where appropriate, and analysis of soil borings at the time of initial installation of the well. The permitting authority shall develop regulations specifying monitoring alternatives and shall approve the location and number of wells, the depth of wells and the sampling frequency, pursuant to these regulations.
3. A continuous leak detection and alarm system which is located in monitoring wells adjacent to an underground storage tank and which is approved by the permitting authority.
4. For monitoring tanks containing motor vehicle fuels, daily gauging and inventory reconciliation by the operator, if all of the following requirements are met:
a. Inventory records are kept on file for one year and are reviewed quarterly.
b. The tank is tested using the precision test as defined by the National Fire Protection Association Pamphlet 329, "Recommended practice for handling underground leakage of flammable and combustible solids," as amended, for proving the integrity of an underground storage tank at time intervals specified by the board and whenever there is a short-age greater than the amount which the boards shall specify by regulation.
c. If a pressurized pump system is connected to the tank system, the system has a leak detection device to monitor for leaks in the piping. The leak detection device shall be installed in a manner designed to resist unauthorized tampering and to clearly show by visual inspection if tampering has occurred. The leak detection device shall be tested annually, at a minimum, and all devices found to be not performing in conformance with the manufacturer's leak detection specifications shall be promptly repaired or replaced.
5. For monitoring underground storage tanks which are located on farms and which store motor vehicle or heating fuels used primarily for agricultural purposes, alternative monitoring methods include the following:
a. If the tank has a capacity of greater than 1,100 gallons but of five thousand (5,000) gallons or less, the tank shall be tested using the precision test, as defined by the National Fire Protection Association Pamphlet 329, at least once every three years, and the owner shall utilize tank gauging on a monthly or more frequent basis, as required by the local agency, subject to the specifications provided in paragraph (7) of subdivision (c) of Section 2641 of Title 23 of the California Administrative Code.
b. If the tank has a capacity of more than five thousand (5,000) gallons, the tank shall be monitored pursuant to the methods for all of the tanks specified in this section. (Prior code § 16.01.040)