ATCP 93.515(7)(c)1.1. For tank systems with an internally fitted liner, a monitoring system shall be installed that is capable of detecting a leak between the inner wall of the tank and the liner.
ATCP 93.515(7)(c)2. 2. The liner shall be chemically compatible with the substance stored.
ATCP 93.515(7)(d) (d) Systems with a barrier in the excavation zone. Systems with a secondary barrier within the excavation zone shall meet all of the following requirements:
ATCP 93.515(7)(d)1. 1. The testing method shall be capable of detecting a leak between the system and the secondary barrier.
ATCP 93.515(7)(d)2. 2. The secondary barrier around the system shall consist of manufactured material which is impermeable to at least 10-6 cm/sec for the regulated substance stored, and which will direct a leak to the monitoring point, to be detected.
ATCP 93.515(7)(d)3. 3. The liner shall be chemically compatible with the substance stored.
ATCP 93.515(7)(d)4. 4. For cathodically protected tanks, the secondary barrier shall be installed so that it does not interfere with the proper operation of the cathodic protection system.
ATCP 93.515(7)(d)5. 5. The test method shall be designed, installed and maintained so groundwater, soil moisture, and rainfall do not render the method inoperative, so that a leak could go undetected.
ATCP 93.515(7)(d)6. 6. The site shall be investigated to ensure that the secondary barrier is always above groundwater and not in a 25-year flood plain, unless the barrier and monitoring designs are for use under such conditions.
ATCP 93.515(7)(d)7. 7. Monitoring wells shall be clearly marked and secured to avoid unauthorized access and tampering.
ATCP 93.515(8) (8)Methods of leak detection for piping.
ATCP 93.515(8)(a)(a) General. Leak detection for piping shall follow the requirements of s. ATCP 93.510 (4) and this section.
ATCP 93.515(8)(b) (b) Automatic line leak detectors. Underground piping systems serving a storage tank with a submersible pump or pressurized booster pump shall be provided with an automatic line leak detector that alerts the operator to the presence of a leak by restricting or shutting off flow from the pump, when it detects leaks of 3 gallons per hour at 10 pounds per square inch line pressure within 1 hour.
ATCP 93.515(8)(c) (c) Line tightness testing.
ATCP 93.515(8)(c)1.1. In addition to the automatic line leak detection required by par. (b), a periodic precision tightness test of piping shall be conducted in accordance with sub. (4), except as provided in subds. 2 and 3. The test shall be performed by a certified tank system tightness tester.
ATCP 93.515(8)(c)2. 2. Where piping leak detection is installed that has the capability to perform monthly monitoring, a separate precision tightness test is not required.
ATCP 93.515(8)(c)3. 3. Any of the methods in subs. (6) and (7) may be used in lieu of complying with subd. 1. if they are designed and approved under s. ATCP 93.130 to detect a leak from any portion of the underground piping that routinely contains product.
ATCP 93.515(8)(d) (d) Periodic line leak detection equipment testing.
ATCP 93.515(8)(d)1.1. A start-up functionality test of the operation of the leak detector shall be conducted in accordance with the manufacturer's procedures for testing to the leak thresholds in par. (b) by inducing a physical line leak.
ATCP 93.515(8)(d)2. 2. A functionality test of the operation of a mechanical line leak detector shall be conducted annually in accordance with the manufacturer's procedures for testing to the leak thresholds in par. (b) by inducing a physical line leak.
ATCP 93.515(8)(d)3. 3. A functionality test of the operation of an electronic line leak detector shall be conducted at least annually in accordance with the manufacturer's procedures for periodic testing to the leak thresholds in par. (b) by inducing a physical line leak, except as provided in subd. 4.
ATCP 93.515(8)(d)4. 4. A leak shall be introduced to the line system to prove the functionality of the electronic line leak detector unless the manufacturer has an alternate approved or equivalent method for testing whether the detector is functioning as intended by the manufacturer. This testing shall be conducted annually by an individual who has no financial interest in the facility and who is certified by the manufacturer to perform the testing, and it shall include all of the following elements:
ATCP 93.515(8)(d)4.a. a. Review of the test diagnostics for a 3 and 0.2 gallon per hour leak test and the history reports for the leak detector showing monthly leak tests.
ATCP 93.515(8)(d)4.b. b. Verification that the programming parameters are correctly set.
ATCP 93.515(8)(d)4.c. c. Verification that the leak detector is producing normal pump-on pressures, by activating a 3 gallon per hour test from the tank monitor console.
ATCP 93.515(8)(d)4.d. d. Verification that electrical wiring and connections have not deteriorated.
ATCP 93.515(8)(d)4.e. e. Verification that associated sensors are functioning as intended.
ATCP 93.515(9) (9)Other methods. The department may approve other methods of leak detection in accordance with s. ATCP 93.130.
ATCP 93.515 History History: CR 07-029: cr. Register November 2008 No. 635, eff. 2-1-09; CR 09-017: am. (2) (b) 3. b., r. (5) (b) and (c), renum. (5) (d) and (6) (b) to (g) to be (5) (b) and (6) (c) to (h), cr. (6) (b) Register July 2009 No. 643, eff. 8-1-09; correction in (1) (b) (intro.), 3., (2) (c), (3) (a) 2. c., (b) 2., 3., (4) (a) 1., 2., (5) (a) 2., (6) (e), (8) (a), (c) 3., (9) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; corrections in (1) (b) (intro.), 3., (2) (c), (3) (a) 2. c., (b) 2., 3., (4) (a) 1., 2., (5) (a) 2., (6) (e), (8) (a), (c) 3., (9) made under s. 13.92 (4) (b) 7., Stats., Register October 2013 No. 694; CR 16-012: am. (2) (d) 2. Register August 2016 No. 728, eff. 9-1-16.
ATCP 93.517 ATCP 93.517Airport hydrant leak detection requirements.
ATCP 93.517(1)(1)General. All new and existing airport fuel hydrant systems shall comply with this section.
ATCP 93.517(2) (2)Leak detection plans. All fuel hydrant systems shall have a leak detection plan that is specifically approved by the department in accordance with s. ATCP 93.130.
ATCP 93.517(3) (3)Plan deadlines.
ATCP 93.517(3)(a)(a) For new fuel hydrant systems, leak detection plans shall be submitted to the department before the system becomes operational.
ATCP 93.517(3)(b) (b) For existing fuel hydrant systems, leak detection plans shall be submitted to the department within 10 years after February 1, 2009.
ATCP 93.517(4) (4)Plan requirements. Fuel hydrant leak detection plans shall include all of the following:
ATCP 93.517(4)(a) (a) A description of the fuel hydrant system.
ATCP 93.517(4)(b) (b) A description of the leak detection method used.
ATCP 93.517 Note Note: A designer of an airport hydrant leak detection system who does not have a financial interest in the airport may be considered to be the independent third party that is required in section ATCP 93.130 (3) (b) 1. for leak detection methods.
ATCP 93.517(4)(c) (c) A schedule for testing the system.
ATCP 93.517(4)(d) (d) Any limitations of the leak detection method.
ATCP 93.517(4)(e) (e) An action plan in the event a leak is identified.
ATCP 93.517(5) (5)System requirements.
ATCP 93.517(5)(a)(a) All new fuel hydrant systems shall be designed and equipped with isolation valves appropriate for leak testing.
ATCP 93.517(5)(b) (b) Any repair or upgrade to an existing fuel hydrant system shall include the installation of isolation valves in the section that is repaired or upgraded.
ATCP 93.517(5)(c) (c) Existing fuel hydrant systems shall have isolation valves for leak testing installed within 10 years after February 1, 2009.
ATCP 93.517 History History: CR 07-029: cr. Register November 2008 No. 635, eff. 2-1-09; correction in (2) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; correction in (2) made under s. 13.92 (4) (b) 7., Stats., Register October 2013 No. 694.
ATCP 93.520 ATCP 93.520Operation and maintenance of corrosion protection.
ATCP 93.520(1)(1)General.
ATCP 93.520(1)(a)(a) Where required. Vent lines, vapor lines and any portion of a single or double-wall tank system, whether new or existing, that routinely contains product and is in contact with the ground or with water shall be protected from corrosion by one of the following methods:
ATCP 93.520(1)(a)1. 1. The tank and piping are constructed of an inherently corrosion-resistant material.
ATCP 93.520(1)(a)2.a.a. The tank and piping are installed at a site that is determined by a certified corrosion expert to be non-corrosive during the operational life of the system.
ATCP 93.520(1)(a)2.b. b. A certified corrosion expert retained for the purpose of determining a non-corrosive site shall make at least 1 personal visit to each tank site during the design stage.
ATCP 93.520 Note Note: See section ATCP 93.200, Table 93.200–5 for information on contacting NACE.
ATCP 93.520(1)(a)3. 3. The tank is a listed composite or jacketed tank designated as complying with UL 1746, and the piping is protected by one of the methods in this subsection.
ATCP 93.520 Note Note: In addition to composite and jacketed tanks, the UL 1746 standard also includes requirements for coated tanks and tanks with pre-engineered cathodic protection systems. These last 2 types of cathodic protection are not included in the blanket approval under this section.
ATCP 93.520(1)(a)4. 4. The tank and piping are protected with a sacrificial anode system in accordance with a standard developed by a nationally recognized association or independent testing laboratory that is acceptable to the department.
ATCP 93.520(1)(a)5.a.a. The tank and piping are protected with a corrosion protection system designed by a certified corrosion expert and meet the requirements of either sub. (2) or (3).
ATCP 93.520(1)(a)5.b. b. A corrosion expert retained for the purpose of designing an impressed current corrosion protections system shall make at least 1 personal visit to each tank site during the design stage.
ATCP 93.520(1)(b) (b) Design and construction.
ATCP 93.520(1)(b)1.1. To allow for periodic testing, new and replacement factory- or field-installed corrosion protection systems shall have appropriate connections, insulated lead wires and accessible test stations, including as specified in subds. 2. and 3.
ATCP 93.520(1)(b)2. 2. All lead wires connected to a tank, anode, reference electrode, or other component associated with the corrosion protection system shall terminate at a test station.
ATCP 93.520(1)(b)3. 3. The termination of each lead wire at a test station shall be clearly labeled or coded to identify the specific component to which it is connected.
ATCP 93.520(1)(b)4. 4. Impressed current systems shall be designed to prevent stray current conditions that may negatively impact other underground structures, utility lines, or cable anchors, or any impressed current systems protecting those items.
ATCP 93.520(1)(b)5. 5. Local utilities shall be notified by the contractor when impressed current systems are installed, repaired or adjusted, including where an increase in rectifier amperage or voltage output occurs.
ATCP 93.520(1)(c) (c) Operation and maintenance.
ATCP 93.520(1)(c)1.1. Operation and maintenance of corrosion protection systems shall be in accordance with national standards acceptable to the department.
ATCP 93.520(1)(c)2. 2. All new and existing corrosion protection systems shall be operated and maintained to continuously provide corrosion protection for the life of the tank system.
ATCP 93.520(1)(c)3. 3. For impressed current systems, operation and maintenance practices and procedures shall be evaluated, and conducted in a manner that minimizes DC interference to or from any underground structure, utility line or cable anchors in the area.
ATCP 93.520(1)(d) (d) Testing periods.
ATCP 93.520(1)(d)1.a.a. All new and existing corrosion protection for UST systems shall be tested within 6 months of installation or repair and at least annually, except as provided in subd. 3.
ATCP 93.520(1)(d)1.b. b. Structure-to-soil potential readings shall be conducted with a minimum of three readings per tank along the center line, located at the ends and in the middle, and with one reading remote from the structure.
ATCP 93.520(1)(d)1.c. c. For each product line, structure-to-soil potentials shall be taken above the piping, at the ends and middle, away from the anode locations. Piping runs over 30 feet shall have additional readings taken every 10 feet.
ATCP 93.520(1)(d)1.d. d. For impressed current systems, the annual test shall include instant-off potentials.
ATCP 93.520(1)(d)2. 2. In addition to the requirements in subd. 1., impressed current corrosion protection systems shall be inspected and evaluated by the site operator at least every 60 days to ensure the equipment is providing adequate current in accordance with its design.
ATCP 93.520(1)(d)3. 3. Tanks designated as sti-P3®, equipped with a pre-installed sacrificial anode system and test station, shall be tested in accordance with all of the following:
ATCP 93.520(1)(d)3.a. a. Testing shall occur within 6 months of installation and at least every 3 years thereafter until the tank is 10 years old.
ATCP 93.520(1)(d)3.b. b. Testing shall occur annually in accordance with subd. 1. after the tank is 10 years old.
ATCP 93.520(1)(d)4. 4. The results of the inspections, evaluations and testing under this paragraph shall be summarized on the department's form TR-WM-141, and retained at the site in accordance with s. ATCP 93.500 (9).
ATCP 93.520 Note Note: Form TR-WM-141, UST Corrosion Protection Test/Survey Report, is available from the Bureau of Weights and Measures, PO Box 8911, Madison, WI 53708-8911, or at telephone (608) 224-4942, or at https://datcp.wi.gov/Pages/Programs_Services/PetroleumHazStorageTanks.aspx.
ATCP 93.520 Note Note: Section ATCP 93.500 (9) specifies retention requirements for testing and repair records of corrosion protection systems.
ATCP 93.520(1)(e) (e) Certifications for corrosion protection.
ATCP 93.520(1)(e)1.1. A certified cathodic protection tester shall be on the site to supervise and monitor the initial post-installation start-up of impressed current corrosion protection systems.
ATCP 93.520 Note Note: NACE requires a person with Senior Corrosion Technologist certification or higher for corrosion protection system commissioning.
ATCP 93.520(1)(e)2. 2. A certified cathodic protection tester shall perform or supervise the performance of reinstallation or replacement of anodes.
ATCP 93.520 Note Note: NACE requires a person with Level 1 Cathodic Protection Tester certification or higher for reinstallation or replacement of anodes.
Loading...
Loading...
Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.