62-761.500. Storage Tank System Requirements  


Effective on Sunday, June 25, 2023
  • 1(1) General requirements.

    4(a) Wellhead Protection. Persons are advised that Chapter 62-521, F.A.C., contains restrictions regarding the location of storage tank systems within 500 feet of a potable water well.

    31(b) Secondary containment.

    341. The materials used for secondary containment shall be:

    43a. Impervious to the regulated substance being stored in the storage tank system and able to withstand deterioration from external environmental conditions,

    65b. Non-corrosive or of corrosion-protected materials or technologies; and,

    74c. Of sufficient thickness and strength to withstand hydrostatic forces at maximum capacity to prevent a discharge.

    912. For cathodically protected tanks and integral piping, secondary containment systems shall not interfere with the operation of the cathodic protection system.

    1133. Secondary containment systems shall be designed and installed to direct any release to a monitoring point or points.

    1324. If factory-made single-walled spill containment systems or single-walled sumps are installed on the system, a containment integrity test shall be performed before the component is placed into service in accordance with the manufacturer’s testing requirements168. For system components without manufacturer containment integrity testing specifications, 178PEI/RP1200-19, 2019 Edition shall be used. PEI RP1200-19 is the 188Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities, 207hereby adopted and incorporated by reference and, 214as a copyright protected document, is 220available for inspection 223at the Department of Environmental Protection or the Department of State address provided in subsection 23862-761.210(1), 239F.A.C., or the publisher at PEI, Post Office Box 2380, Tulsa, Oklahoma 74101-2380, (918)494-9696, or the publisher’s website at 258www.pei.org/259. For field-fabricated components the tests shall be at least for 24 hours in accordance with manufacturer’s requirements.

    2775. 278An interstitial integrity test shall be performed on the storage tank after it is delivered and installed at the facility and before the storage tank is placed into service. This test shall be performed in accordance with manufacturer’s requirements. 317For 318storage tanks without manufacturer’s interstitial integrity testing specifications, 326PEI/RP100-20, 2020 Edition shall be used. PEI/RP100-20 is 334hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection 350at the Department of Environmental Protection or the Department of State address provided in subsection 36562-761.210(1), 366F.A.C., or the publisher at PEI, Post Office Box 2380, Tulsa, Oklahoma 74101-2380, (918)494-9696, or the publisher’s website at 385www.pei.org/: 386Recommended Practices for Installation of Underground Liquid Storage Systems, 395PEI/RP100-20, 2020 Edition; 398and 399PEI/RP1200-19, 2019 Edition.

    4026. An interstitial integrity test shall be performed on integral piping in accordance with PEI/RP100-20, 2020 Edition, and PEI/RP1200-19, 4212019 Edition, 423before the integral piping is placed into service.

    4317. If double-walled spill containment systems or double-walled sumps are installed on the system, an interstitial integrity test shall be performed in accordance with the 456manufacturer’s testing requirements459. For system components without manufacturer interstitial integrity testing specifications, 469PEI/RP1200-19, 2019 Edition shall be used before the component is placed into service.

    482(c) Cathodic protection.

    4851. Test stations. Cathodic protection systems shall be designed, constructed, and installed with test stations in accordance with NACE standards contained in paragraph 50862-761.210(2)(f), 509F.A.C. Cathodic protection test stations shall provide direct access to the soil electrolyte in close proximity to each cathodically protected structure for placement of reference electrodes, and monitoring wires that connect directly to cathodically protected structures. Facilities where direct access to soil in close proximity to cathodically protected structures is present, and where electrical connections to cathodically protected structures can be conveniently accomplished, need not have separate dedicated cathodic protection test stations.

    5812. The cathodic protection system shall be operated and maintained in accordance with subsection 59562-761.700(2), 596F.A.C.

    5973. Any field-installed cathodic protection system shall be designed and installed by or under the direction of a Corrosion Professional.

    6174. Cathodic protection is not required for any field-fabricated primary storage tank that has been installed within a former single-walled storage tank as a means to upgrade to secondary containment. However, the former single-walled storage tank, which has now become the secondary containment must be protected from corrosion.

    6655. Supplemental anodes that are added to a sti-P3674® 675tank after, January 11, 2017, 680shall be installed in accordance with the following document, regardless of the date of installation of the storage tank system or storage tank system component: 705Recommended Practice for the Addition of Supplemental Anodes to sti-P3715® 716USTs, 717STI R972, Revised December 2010, 722hereby adopted and incorporated by reference, and available 730from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at 749https://www.steeltank.com/, 750or the Department address located in subsection 75762-761.210(1), 758F.A.C.

    759(d) Compatibility. The primary and secondary walls of storage tank systems shall be made of, or internally lined with materials that are compatible with, the regulated substance stored in the storage tank systems and with substances or conditions present in the environment. All storage tank systems containing blends of ethanol, biodiesel, or other biofuels and additives shall be compatible with the regulated substances stored in the storage tank systems. Storage tank systems and system components containing ethanol blends greater than 10 percent or biodiesel blends greater than 20 percent must demonstrate compatibility through registration of the storage tank system and system components in accordance with subsection 86562-761.850(2), 866F.A.C.

    867(e) All components of a storage tank system shall be installed in accordance with the manufacturer’s instructions.

    884(f) All storage tank systems shall be installed in accordance with the following reference guidelines, hereby adopted and incorporated by reference and, as copyright protected documents, are available for inspection at the Department of Environment Protection or the Department of State address provided i928n subsection 93062-761.210(1), 931F.A.C.932:

    9331. 934Installation of Underground Petroleum Storage Systems, 940API Recommended Practice 1615, (R.2020), 6th Edition, April 2011. To obtain this reference from the publisher, see paragraph 95862-761.210(2)(b), 959F.A.C.;

    9602. 961Flammable and Combustible Liquids Code, 966Storage of Liquids in Tanks – Underground Tanks, 974Chapter 23 of 977NFPA 30, 2021 Edition, incorporated by reference in paragraph 98662-761.300(2)(v), 987F.A.C. To obtain this reference from the publisher, see paragraph 99762-761.210(2)(g), 998F.A.C.;

    9993. 1000Code for 1002Motor Fuel Dispensing Facilities and Repair Garages, 1009NFPA 30A, 2021 Edition. To obtain this reference from the publisher, see paragraph 102262-761.210(2)(g), 1023F.A.C.;

    10244. 1025Process Piping, 1027ASME B31.3, 2020 Edition. To obtain this reference from the publisher, see paragraph 104062-761.210(2)(c), 1041F.A.C.; 1042and

    10435. 1044Recommended Practices for Installation of Underground Liquid Storage Systems, 1053PEI/RP100-20, 2020 Edition1056. 1057To obtain this reference from the publisher, see paragraph 106662-761.210(2)(j), 1067F.A.C.

    1068(g) Storage tanks with field-fabricated internal secondary containment shall be installed in accordance with the following manufacturer’s specifications, hereby adopted and incorporated by reference 1092and, as copyright protected documents, are available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 111662-761.210(1), 1117F.A.C.1118:

    11191. 1120Outline of Investigation for Underground Fuel Tank Internal Retrofit Systems, 1130UL 1856, June 2020, 2nd Edition. 1136To obtain this reference from the publisher, see paragraph 114562-761.210(2)(m), 1146F.A.C.; 1147and,

    11482. 1149NLPA Standard 631, Chapters A and B, 115619911157. 1158To obtain this reference from the publisher, see paragraph 116762-761.210(2)(i), 1168F.A.C.

    1169(h) If the installation of the storage tank system component disturbs the backfill, or where the integral piping is connected or disconnected during installation, a Certified Contractor shall perform the installation of storage tank systems containing pollutants, including1207: 1208tanks, integral piping (excluding drop tubes), overfill protection and spill containment equipment, internal release detection equipment, cathodic protection systems, secondary containment systems, and dispensers.

    1232(i) Whenever storage tanks or integral piping are installed or relocated after January 11, 2017, a survey drawing of installed tanks and underground integral piping signed and sealed by a professional land surveyor or professional engineer licensed in the state of Florida, shall be completed and maintained as a record in accordance with Rule 128662-761.710, 1287F.A.C. The survey drawing of the work completed, along with any changes made to the original specifications during the construction process, shall include all construction and equipment design specifications including exact dimensions, geometry and locations of the storage tanks or integral piping installed. Surveys are not required for tanks that are retrofitted with internal secondary containment.

    1343(2) Storage tank installation.

    1347(a) All storage tanks at a facility shall have secondary containment and shall be constructed or installed to provide for interstitial monitoring of the entire storage tank.

    1374(b) Fiberglass reinforced plastic double-walled tanks shall be constructed in accordance with the following document: 1389Standard for Fibre Reinforced Underground Tanks for Flammable and Combustible Liquids (formerly Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products, Alcohols, and Alcohol-Gasoline Mixtures), 1413UL/ULC 1316, January 1994, Revised November 2018, 3rd Edition, 1422available from the publisher at UL, 1428333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/, 1442or the Department address listed in subsection 144962-761.210(1), 1450F.A.C.; or these tanks shall be certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 147462-761.850(2), 1475F.A.C.

    1476(c) Cathodically protected double-walled steel tanks shall be registered in accordance with subsection 148962-761.850(2), 1490F.A.C., and shall be:

    14941. Constructed in accordance with the following documents: 1502Steel Underground Tanks for Flammable and Combustible Liquids, 1510UL 58, July 1998, 1514Revised January 2018, 10th 1518Edition, 1519and 1520External Corrosion Protection Systems for Steel Underground Storage Tanks, 1529UL 1746, January 2007, Revised December 2014, 3rd Edition, 1538hereby adopted and incorporated by reference, and are available 1547from the publisher at UL, 1552333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/, 1566or the Department address listed in subsection 157362-761.210(1), 1574F.A.C.;

    15752. Constructed in accordance with the following document: 1583sti-P31584® 1585Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks, 1597sti-P31598®, 1599Revised May 2018, Steel Tank Institute (STI), 1606hereby adopted and incorporated by reference, and is available 1615from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at 1634https://www.steeltank.com/, 1635or the Department address listed in subsection 164262-761.210(1), 1643F.A.C.;

    16443. Constructed in accordance with reference document STI R972, Revised December 2010, incorporated by reference in subparagraph 166162-761.500(1)(c)5., 1662F.A.C., or

    16644. Certified by a Nationally Recognized Testing Laboratory for any field-installed cathodic protection system, that these 1680requirements 1681are met, constructed, and designed by a Corrosion Professional in accordance with the following document: 1696External 1697Corrosion Control of Underground Storage Tank Systems by Cathodic Protection, 1707NACE Standard SP0285-2021, 2021 Edition, 1712hereby adopted and incorporated by reference, and is available 1721from the publisher at 1725AMPP (The Association for Materials Protection and Performance, formerly 1734NACE International), AMPP, 15835 Park Ten Place, Houston, Texas 77084, (800)797-6223, or the publisher’s website at 1750https://www.ampp.org/home. Copyright protected documents are available for inspection at 1759the Department of Environmental Protection or the Department of State address provided in subsection 177362-761.210(1), 1774F.A.C.

    1775(d) Double-walled steel tanks coated with fiberglass reinforced plastic shall be constructed in accordance with UL 58, July 1998, Revised January 2018, UL 1746, 1799January 2007, 1801Revised December 2014, and 1805Specification for External Corrosion Protection of FRP Composite Steel USTs – ACT-1001817®, 1818STI F894, Revised May 2018, 1823or these tanks shall be certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 184662-761.850(2), 1847F.A.C. STI F894, Revised May 2018, is 1854hereby adopted and incorporated by reference, and available 1862from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at 1881https://www.steeltank.com/, or 1883the Department address listed in subsection 188962-761.210(1), 1890F.A.C.

    1891(e) Jacketed steel tanks shall be constructed in accordance with UL 1746, 1903January 2007, 1905Revised December 2014, or certified by a Nationally Recognized Testing Laboratory that these requirements are met, 1921and registered in accordance with subsection 192762-761.850(2), 1928F.A.C.

    1929(f) Double-walled storage tanks that meet the above performance 1938requirements, 1939or other double-walled storage tanks that are constructed of equivalent material, design, or corrosion protection shall be registered with the Department in accordance with subsection 196462-761.850(2), 1965F.A.C.

    1966(g) Tanks 1968shall be installed to allow for release detection in accordance with Rule 198062-761.600, 1981F.A.C.

    1982(h) Double-walled storage tanks that have been removed and that are to be reinstalled at a different location shall:

    20011. Be recertified that all original warranties are confirmed by the original manufacturer or the manufacturer’s successor, and be reinstalled in accordance with the 2025requirements 2026in this subsection, or

    20302. Be recertified by a professional engineer licensed in the state of Florida that the storage tank meets all applicable 2050requirements 2051of this subsection; and,

    20553. Show proof of recertification which shall be provided to the Department and county prior to the start of installation. The storage tank shall be re-registered in accordance with subsection 208562-761.400(1), 2086F.A.C.

    2087(3) Integral piping.

    2090(a) All integral piping, including remote fill piping that is in contact with the soil, shall have secondary containment, with the exception of vertical fill piping.

    2116(b) All integral piping that transports regulated substances over surface waters of the state shall have secondary containment and shall be UV rated if exposed to sunlight if made of non-metallic materials, and shall be registered in accordance with subsection 215662-761.850(2), 2157F.A.C., if made of non-metallic materials.

    2163(c) All integral piping that is not in contact with the soil shall meet the construction 2179requirements 2180in subparagraphs 218262-761.500(3)(d)2. 2183through 5., F.A.C., shall be UV rated if exposed to sunlight if made of non-metallic materials, and shall be registered in accordance with subsection 220762-761.850(2), 2208F.A.C., if made of non-metallic materials.

    2214(d) Construction 2216requirements2217.

    22181. Fiberglass reinforced plastic integral piping or other non-metallic double-walled integral piping installed in contact with the soil at a facility shall meet the requirements of 2244Nonmetallic Underground Piping for Flammable Liquids, 2250UL 971, May 2021, 2nd Edition, 2256or shall be certified by a Nationally Recognized Testing Laboratory that these 2268requirements 2269are met, and registered in accordance with subsection 227762-761.850(2), 2278F.A.C. 2279UL 971, 2281May 2021, 22832nd Edition, 2285is 2286hereby adopted and incorporated by reference, and is available 2295from the publisher at UL, 2300333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/. Copyright protected documents are available for inspection at 2322the Department of Environmental Protection or the Department of State address provided in subsection 233662-761.210(1), 2337F.A.C2338.

    23392. Coated steel double-walled integral piping shall be constructed in accordance with ASME B31.3, 2020 Edition, incorporated by reference in subparagraph 236062-761.500(1)(f)4., 2361F.A.C. In addition, steel integral piping in contact with the soil shall be cathodically protected in accordance with the following documents: 2382Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems, 2392API Recommended Practice 1632, (R2010) 3rd Edition, May 1996, hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 243262-761.210(1), 2433F.A.C., or the publisher at API, 1220 L Street, N.W., Washington, D.C. 20005, (202)682-8000, or the publisher’s website at http://www.api.org/; 2453Control of External Corrosion on Underground or Submerged Metallic Piping Systems, 2464NACE Standard SP0169-2013 (formerly RP0169), 2013 Edition, 2471hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 250262-761.210(1), 2503F.A.C., or the publisher at AMPP (The Association for Materials Protection and Performance, formerly NACE International), AMPP, 15835 Park Ten Place, Houston, Texas, (800)797-6223, or the publisher’s website at https://www.ampp.org/home; 2533and 2534Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems, 2550STI R892, Revised January 2006, 2555hereby adopted and incorporated by reference and, 2562as a copyright protected document, is 2568available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761-210(1), F.A.C., or the publisher at Steel Tank Institute (STI), 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at https://www.steeltank.com/.

    26113. Metallic double-walled integral piping constructed of nonferrous materials, such as copper, does not require cathodic protection and shall be constructed in accordance with the requirements in Chapter 27 of NFPA 30, 2021 Edition, 2645Flammable and Combustible Liquids Code, 2650Piping Systems, 2652incorporated by reference in paragraph 265762-761.300(2)(v), 2658F.A.C.

    26594. Metallic single-walled vertical fill piping does not require cathodic protection and shall be constructed in accordance with the requirements in Chapter 27 of NFPA 30, 2021 Edition, 2687Flammable and Combustible Liquids Code, 2692Piping Systems, 2694incorporated by reference in paragraph 269962-761.300(2)(v), 2700F.A.C.

    27015. Integral double-walled piping constructed of other materials, design, or corrosion protection shall be registered with the Department in accordance with subsection 272362-761.850(2), 2724F.A.C.

    2725(e) Integral piping 2728shall be installed 2731with a slope to a low point monitoring system 2740to allow for release detection in accordance with Rule 274962-761.600, 2750F.A.C.

    2751(f) Pressurized integral piping systems connected to dispensers shall be installed with shear valves or emergency shutoff valves in accordance with Section 6.3 of NFPA 30A, 2021 Edition, 2779Code for 2781Motor Fuel Dispensing Facilities and Repair Garages, 2788Requirements for Dispensing Devices, 2792incorporated by reference in subparagraph 62-671.500(1)(f)3., F.A.C2799. 2800These valves shall be designed to close automatically if a dispenser is displaced from its normal position. The valves shall be rigidly anchored independently of the dispenser. The valves shall be tested in accordance with PEI/RP1200-19, 2019 Edition, incorporated by reference in subparagraph 62-671.500(1)(b)4., F.A.C., at the time of installation by a certified contractor to confirm that the automatic closing function of the valve operates properly and that the valve is properly anchored.

    2873(g) All storage tank systems located at an elevation that produces a gravity head on integral piping positioned below the product level in the storage tank must be installed and maintained with an isolation block valve in accordance with Chapter 22.13 of NFPA 30, 2021 Edition, 2919Flammable and Combustible Liquids Code, 2924Tank Openings Other Than Vents, 2929incorporated by reference in paragraph 293462-671.300(2)(v), 2935F.A.C., and located as close as practical to the storage tank, regardless of the date of installation of the storage tank system. In addition, anti-siphon valves shall be installed and maintained in accordance with Section 11.2 of NFPA 30A, 2021 Edition, 2976Code for 2978Motor Fuel Dispensing Facilities and Repair Garages, 2985Marine Fueling – Storage, 2989regardless of the date of installation of the storage tank system. 3000NFPA 30A, 2021 Edition, is incorporated by reference in subparagraph 301062-761.500(1)(f)3., 3011F.A.C.

    3012(h) Pressurized integral piping systems connected to dispensers shall be installed with a method of leak detection that can detect a leak within one hour, and can include a mechanical line-leak detector or an electronic line leak detector, or another device registered in accordance with subsection 305862-761.850(2), 3059F.A.C.

    3060(i) Storage tank systems using corrosion protection systems with vapor corrosion inhibitors that are registered in accordance with subsection 307962-761.850(2), 3080F.A.C., shall be designed and installed under the direction of a Corrosion Professional.

    3093(j) 3094Bulk product piping, on-site integral piping with an internal diameter greater than three inches utilized for transporting regulated substances, associated with underground storage tank systems shall meet the bulk product piping requirements in Chapter 62-762, F.A.C., Aboveground Storage Tank Systems, pursuant to subsection 62-762.502(4), F.A.C., hereby adopted and incorporated by reference.

    3145(4) Spill containment systems.

    3149(a) Storage tank systems shall be installed with a spill containment system at each tank fill connection 3166meeting the performance requirements of paragraph 317262-761.500(1)(b), 3173F.A.C., and registered in accordance with subsection 318062-761.850(2), 3181F.A.C.

    3182(b) Fillbox covers3185.

    31861. Effective June 25, 2024, regardless of the date of installation of the storage tank system, fillbox covers shall be marked or the fill connection tagged, and facility signage shall be prominently displayed in accordance with the following document, hereby adopted and incorporated by reference: 3231Using the API Color-Symbol System to Identify Equipment, Vehicles, and Transfer Points for Petroleum Fuels and Related Products at Dispensing and Storage Facilities and Distribution Terminals, 3257API Recommended Practice 1637, 4th Edition, April 2020. 3265API 1637 is copyright protected and available for inspection at the Department of Environmental Protection or the Department of State address 3286provided in subsection 328962-761.210(1), 3290F.A.C., or the American Petroleum Institute information provided in 3299paragraph 330062-761.210(2)(b), 3301F.A.C.

    33022. For aviation facilities, regardless of the date of installation of the storage tank system, fillbox covers shall be marked or the fill connection tagged, and facility signage shall be prominently displayed in accordance with the following document, hereby adopted and incorporated by reference 3346Identification Markings for Dedicated Aviation Fuel Manufacturing and Distribution Facilities, Airport Storage and Mobile Fuelling Equipment, 3362EI 1542, 9th Edition, July 2012. EI 1542 is copyright protected and available for inspection at the of Environmental Protection or the Department of State address provided in subsection 339162-761.210(1), 3392F.A.C., or the Energy Institute information provided in 3400paragraph 340162-761.210(2)(d), 3402F.A.C.

    34033. An equivalent method may also be approved by the Department using an alternative procedure in accordance with subsection 342262-761.850(1), 3423F.A.C3424.

    3425(c) Single-walled spill containment systems shall be installed to allow for release detection in accordance with Rule 344262-761.600, 3443F.A.C.

    3444(d) Double-walled spill containment systems shall be installed to allow for interstitial monitoring in accordance with Rule 346162-761.600, 3462F.A.C.

    3463(5) Dispensers and dispenser sumps.

    3468(a) The dispensers used for transferring fuels from storage tanks to vehicles or portable containers shall be installed and maintained in accordance with the provisions of NFPA 30, 34962021 Edition, 3498incorporated by reference in paragraph 350362-761.300(2)(v), 3504F.A.C., 3505and Chapter 6, 3508Fuel Dispensing Systems; 3511Chapter 9, 3513Operational Requirements; 3515and Chapter 11, 3518Code for 3520Motor Fuel Dispensing Facilities and Repair Garages, 3527Marine Fueling 3529of NFPA 30A, 2021 Edition.

    3534(b) Dispensers shall be installed with a dispenser sump meeting the performance 3546requirements 3547of paragraph 354962-761.500(1)(b), 3550F.A.C., and registered in accordance with subsection 355762-761.850(2), 3558F.A.C. The dispenser sump shall extend beneath the union of the integral piping and the dispenser, including the shear valve, if applicable.

    3580(c) Dispenser sumps shall be installed to allow for release detection in accordance with Rule 359562-761.600, 3596F.A.C. The dispenser sump shall be capable of containing a release for the entire area beneath the dispenser.

    3614(6) Piping sumps.

    3617(a) Piping sumps shall meet the performance 3624requirements 3625of paragraph 362762-761.500(1)(b), 3628F.A.C., and be registered in accordance with subsection 363662-761.850(2), 3637F.A.C. The sumps shall be designed, constructed, and installed to minimize water entering the sump.

    3652(b) Piping sumps shall be installed to allow for release detection in accordance with Rule 366762-761.600, 3668F.A.C.

    3669(7) Overfill protection.

    3672(a) 3673Owners or operators shall ensure that the volume available in the storage tank is greater than the volume of regulated substances to be transferred to the storage tank before the transfer is made and shall ensure that any transfer is repeatedly monitored to prevent overfilling and spilling, and no storage tank shall be filled beyond 95 percent capacity.

    3731(b) Storage tank systems shall be equipped with an overfill device that meets one of the following:

    37481. Automatically shuts off flow to the storage tank when the storage tank is no more than 95 percent full;

    37682. Restricts flow to the storage tank when the storage tank is no more than 90 percent full and does not fill the storage tank beyond 95 percent capacity. Flow restrictors, such as ball float valves, used in vent lines may not be used when overfill protection is installed or replaced after January 11, 2017. Flow restrictors installed before January 11, 2017, may only be used if the storage tank system meets the requirements of Section 7 of PEI/RP100-20, 2020 Edition, 3849Recommended Practices for Installation of Underground Liquid Storage Systems, 3858UST Overfill Equipment Verification, Inspection and Testing 3865incorporated by reference in subparagraph 387062-761.500(1)(b)5., 3871F.A.C.; or,

    38733. Alerts the transfer operator when the tank is no more than 90 percent full by triggering an alarm that is visible, audible, or both, and the transfer operator is to ensure the tank is not filled beyond 95 percent capacity.

    3914(c) 3915Effective October 13, 2019, owners and operators shall:

    39231. Designate a primary overfill protection device used to meet the requirements in paragraph 393762-761.500(7)(b), 3938F.A.C., and any additional overfill devices shall not interfere with the designated primary device; and,

    39532. Ensure the designated primary overfill protection device is registered 3963pursuant to registration of storage tank system equipment and release detection systems and methods, 3977subsection 397862-761.850(2), 3979F.A.C.

    3980(d) 3981All overfill protection devices shall be tested for operability at installation and test results shall be maintained and available for inspection by the Department or county in accordance with Rule 401162-761.710, 4012F.A.C.

    4013(e) An annual operability test shall be performed on the designated primary overfill protection device used to meet the Department’s overfill protection requirement at intervals not exceeding 12 months to ensure proper operation 4046and test results shall be maintained and available for inspection by the Department or county in accordance with Rule 406562-761.710, 4066F.A.C. An annual operability test will be deemed timely if performed within the same calendar month in which the test is due.

    4088(f) Storage tank systems with capacities of 2,000 gallons or less that do not receive delivery by a mated (joined) tight fill adaptor connection of the delivery hose to the tank riser may use calibrated stick measurements 4126for overfill protection, and are not required to be equipped with one of the devices specified in paragraph 414462-761.500(7)(b), 4145F.A.C., 4146provided that an inches to gallons tank chart is posted at the tank fill area or readily available to the delivery driver. Such tanks shall not be filled beyond 95 percent capacity.

    4178(g) Used oil tanks that receive less than 25 gallons at one time are not required to have overfill protection.

    4198Rulemaking Authority 4200376.303 FS. 4202Law Implemented 4204376.303 FS. 4206History–New 12-10-90, Amended 5-4-92, Formerly 17-761.500, Amended 9-30-96, 7-13-98, 6-21-04, 1-11-17, 10-13-19, 6-25-23.