(1) General requirements.

Terms Used In Florida Regulations 62-761.600

  • County: means a locally administered governmental program under contract with the Department to perform compliance verification activities at facilities with storage tank systems within the boundaries stipulated in the applicable contract. See Florida Regulations 62-761.200
  • Dispenser: means a dispensing system that is used to transfer regulated substances from a fixed point to a vehicle or portable container. See Florida Regulations 62-761.200
  • Empty: means all regulated substances have been removed so that no more than one inch in depth or 0. See Florida Regulations 62-761.200
  • In contact with the soil: means any portion of a storage tank system, that physically touches the soil or, if not in direct contact with the soil, is separated from the soil only by a casing, wrapping, or other material that is not impervious. See Florida Regulations 62-761.200
  • Incident: is a condition or situation indicating that a release or discharge may have occurred from a storage tank system or system component. See Florida Regulations 62-761.200
  • Integral piping: means on-site piping, originating or terminating at the regulated storage tank or tanks, that conveys regulated substances. See Florida Regulations 62-761.200
  • Interstice: means the space between the primary and secondary wall of a storage tank system or system component. See Florida Regulations 62-761.200
  • Interstitial monitoring: is a method of release detection in which the area between the primary and secondary wall of a storage tank system component is monitored for signs of release. See Florida Regulations 62-761.200
  • Liner: means an impervious material that meets the performance requirements of paragraph Fla. See Florida Regulations 62-761.200
  • Nationally Recognized Testing Laboratory: means an international or national organization or governmental entity that can perform quantitative and qualitative tests on storage tank system equipment, evaluate the test data and equipment performance, and make determinations of the equipment's capability of meeting the technical requirements of this chapter. See Florida Regulations 62-761.200
  • Out-of-service: means a storage tank system or system component that is designated as out-of-service by the owner or operator to the Department on Storage Tank Facility Registration Form 62-761. See Florida Regulations 62-761.200
  • piping: means any hollow cylindrical or tubular conveyance through which regulated substances flow. See Florida Regulations 62-761.200
  • Release: means a loss of regulated substances from a storage tank system or system component into the system's secondary containment. See Florida Regulations 62-761.200
  • Release detection: means a method of detecting the presence of regulated substances within a storage tank system's or system component's secondary containment or detecting other conditions or situations indicative of a release or discharge. See Florida Regulations 62-761.200
  • Secondary containment: means a release detection and discharge prevention system that meets the performance requirements of paragraph Fla. See Florida Regulations 62-761.200
  • Storage tank system: means a tank used to contain regulated substances, its integral piping, and all its components, including dispensers, spill containment systems, overfill protection systems, secondary containment systems, and any associated release detection equipment. See Florida Regulations 62-761.200
  • system component: means any part (mechanical, electrical, and plumbing) of the storage tank system that is necessary for a tank system to operate properly and safely. See Florida Regulations 62-761.200
  • Tank: means an enclosed stationary container or structure that is designed or used to store regulated substances, and the volume of which, including the volume of underground piping, is ten percent or more buried beneath the surface of the ground. See Florida Regulations 62-761.200
    (a) Storage tank systems shall have a method, or combination of methods, of release detection that can detect a new release from any portion of the storage tank system.
    (b) For any storage tank system without a method, or combination of methods, of release detection in accordance with this rule, the owner or operator shall immediately provide a method of release detection, or shall immediately empty and place the storage tank system out-of-service, or close the storage tank system in accordance with subsection Fla. Admin. Code R. 62-761.800(2)
    (c) Any component of a storage tank system with an interstice shall have a method of interstitial monitoring which shall be conducted in accordance with this rule. Interstitial monitoring can be performed with vacuum, pressure, hydrostatic (liquid-level sensing), sensors or probes, and visual release detection methods.
    (d) Except as otherwise specified in this rule, the release detection method or combination of methods used at a facility shall be performed at least once every calendar month, but not exceeding 35 days, to determine if a release from the storage tank system has occurred.
    (e) Visual inspections. At least once a month, but not exceeding 35 days, every component of a storage tank system that contains, transfers, or stores, or is designed to contain, transfer, or store regulated substances that can be inspected visually shall be visually inspected and documented as to its condition pursuant to rule Fla. Admin. Code R. 62-761.710 Any visual inspection of a storage tank system that reveals uncontrolled pitting corrosion, structural damage, leakage, or other similar problems is considered a positive response. The positive response shall be recorded as part of the release detection records. Repairs shall be made in accordance with rule Fla. Admin. Code R. 62-761.700 The positive response shall be reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430, if it is determined that a release has occurred. A monthly visual inspection is not required for any system component using an electronic release detection method; however, piping and dispenser sumps that use an electronic release detection method must also be visually inspected every six months and records kept of the visual inspection.
    (f) Electronic and mechanical release detection devices shall be:
    1. Installed, calibrated, operated, and maintained in accordance with the manufacturer’s instructions and shall be designed and installed to provide service checks for operability to ensure that the device is functioning in accordance with subsection Fla. Admin. Code R. 62-761.700(3); and,
    2. Registered in accordance with subsection Fla. Admin. Code R. 62-761.850(2), except controllers or annunciators that are used to display leak detection test results are not required to be registered.
    (g) Electronic release detection devices shall be inspected for proper operation at least once every calendar month, but not exceeding 35 days. A record or summary of the alarm history, sensor status, and testing results related to potential releases shall be printed from any electronic release detection device and kept, or be provided to the county or Department upon request through electronic documentation. If the release detection system is not capable of printing records, a manual log shall be maintained of the alarm history, sensor status, and testing results.
    (h) Release detection shall be constructed and installed so that groundwater, rainfall, or soil moisture will not render the release detection method used inoperable.
    (i) Storage tank systems that store fuel solely for use by emergency power generators installed prior to January 11, 2017, must meet the release detection requirements of rule Fla. Admin. Code R. 62-761.600, on or before October 13, 2018. Storage tank systems that store fuel solely for use by emergency power generators installed after January 11, 2017, must meet the release detection requirements of rule Fla. Admin. Code R. 62-761.600, at installation.
    (2) Storage Tanks.
    (a) One or more of the following release detection methods shall be used:
    1. Liquid level monitoring systems with electronic hydrostatic sensors. This method shall be able to detect incidents by determining changes in liquid levels within the interstice and monitoring reservoir and to provide immediate electronic notification with an audible or visual alarm to the owner or operator if liquid levels cannot be maintained. Any alarm that indicates that liquid levels are not being maintained is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    2. Vacuum monitoring. This method shall be able to detect incidents by determining changes in vacuum levels within the interstice by continuous monitoring of vacuum levels and to provide immediate electronic notification with an audible or visual alarm to the owner or operator if vacuum levels cannot be maintained. Any alarm that indicates that vacuum levels are not being maintained is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    3. Pressure monitoring. This method shall be able to detect incidents by using an inert gas and determining changes in pressure levels within the interstice by continuous monitoring of pressure levels and to provide immediate electronic notification with an audible or visual alarm to the owner or operator if pressure levels cannot be maintained. Any alarm that indicates that pressure levels are not being maintained is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    4. Electronic sensors in a normally dry interstice. This method shall be able to detect the presence of liquid, other than condensate, in the interstice or monitoring low point and to provide immediate electronic notification with an audible or visual alarm to the owner or operator if liquid is detected. Any alarm that indicates the presence of liquid is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    5. Visually inspected liquid level monitoring systems. This method shall be able to detect incidents by determining changes in liquid levels within the interstice and monitoring reservoir. Any visual observation that indicates that liquid levels are not being maintained is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    6. Visually inspected vacuum or pressure monitoring with gauges. This method shall be able to detect incidents by determining changes in vacuum or pressure levels within the interstice.
    a. Pressure readings shall be able to detect a 50 percent change from one month to the next, or any change in pressure exceeding 50 percent of the initial level or of a pressure level that is reestablished at the time of an incident investigation or annual testing of the gauge, and for vacuum systems, any complete loss of vacuum or positive pressure reading. Vacuum or pressure refreshment must be performed in accordance with manufacturer’s specifications and the system’s equipment registration in subsection Fla. Admin. Code R. 62-761.850(2) Any change indicated above is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    b. Liquid-filled gauges shall be calibrated using NIST traceable standards prior to initial operation, hereby adopted and incorporated by reference. Information is available at National Institute of Standards and Technology, 100 Bureau Drive, Stop 1070, Gaithersburg, Maryland 20899-1070, (301)975-6478, or the organization’s website at http://www.nist.gov/index.html. This reference guideline is located in paragraph Fla. Admin. Code R. 62-761.210(2)(h)
    7. Visual monitoring of normally dry interstices. This method shall be able to detect the presence of liquid at a low point of the interstice. Any presence of groundwater or surface water, other than condensate, or regulated substances in the interstice is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    8. Visual monitoring of liners. This method shall be able to detect the presence of liquid at a low point of the liner. The accumulation of water or condensation in the low point of the liner shall not interfere with the ability to detect regulated substances. Any unexplained presence of regulated substances in the liner is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    (3) Integral piping with secondary containment.
    (a) One or more of the release detection methods in subsection Fla. Admin. Code R. 62-761.600(2), shall be used.
    (b) In addition, pressurized integral piping in contact with the soil shall be equipped with a release detection system that can detect a leak within one hour. One of the following methods shall be used:
    1. Mechanical line leak detectors. Mechanical line leak detectors shall be capable of detecting a discharge of 3.0 gallons per hour (gph) with a probability of detection of 0.95 and a probability of false alarm of 0.05 at an equivalent line pressure of 10 pounds per square inch (psi) and restrict flow within one hour. Any instance where the mechanical line leak detector is restricting flow is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    2. Electronic line leak detectors. Electronic line leak detectors shall be capable of detecting a discharge of 3.0 gph with a probability of detection of 0.95 and a probability of false alarm of 0.05 at an equivalent line pressure of 10 psi and shut off power to the pump. Any instance where the electronic line leak detector has shut off power to the pump is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430 Monthly release detection printed tapes from automatic tank gauges for electronic line leak detectors are not required to be kept as records to demonstrate compliance, but a positive response from an electronic line leak detector must be recorded and investigated in accordance with rule Fla. Admin. Code R. 62-761.430
    3. Electronic interstitial monitoring devices. Storage tank systems without line leak detectors, shall have electronic interstitial monitoring devices that are capable of detecting a release of 10 gallons within one hour and shutting off the pump. Any instance where the monitoring device has shut off the pump is considered a positive response. The positive response shall be recorded as part of the release detection records and reported and investigated as an incident pursuant to rule Fla. Admin. Code R. 62-761.430
    (4) Annual operability testing of release detection systems. All release detection devices shall be tested annually at intervals not exceeding 12 months to ensure proper operation. The test must either simulate an actual alarm condition or shall be conducted according to manufacturer’s specifications, and shall include, at a minimum, a determination of whether the device operates as designed. Remote testing of the system can be performed by the manufacturer if the remote test is included in the third-party certification by a Nationally Recognized Testing Laboratory.
    (5) Records shall be kept for three years in accordance with rule Fla. Admin. Code R. 62-761.710
Rulemaking Authority 376.303 FS. Law Implemented Florida Statutes § 376.303. History—New 12-10-90, Formerly 17-761.600, Amended 7-13-98, 6-21-04, 1-11-17.