1. (1) Every facility must ensure that releases due to spilling or overfilling do not occur. One of the transfer procedures described in NFPA 385 (2012 edition) or API RP 1007 (March 2001 edition) must be used in order to comply with the requirement of this paragraph, unless those procedures are technically infeasible. In circumstances of technical infeasibility, the facility must develop and employ practices to ensure that releases due to spilling or overfilling do not occur.
2. (2) The facility must report, investigate, and clean up any spills and overfills in accordance with section 613-4.4(d) of this Subpart.
3. (3) Every AST must be marked (for example, with stenciled letters) with the tank registration identification number, as well as the tank design and working capacities.
4. (4) Every AST system must be color coded in accordance with API RP 1637 at or near the fill port. If an AST system contains petroleum that does not have a corresponding API color code, the facility must otherwise mark the AST (for example, with stenciled letters) to identify the petroleum currently in the AST system. If the fill port is remote from the AST such that the AST cannot be properly identified by sight from the fill port, the facility must also place the marking near the fill port to identify the petroleum currently in the AST system. For any fill port connected to multiple AST systems storing different types of petroleum, the facility may place the marking near the fill port (for example, with a label or placard) to identify the types of petroleum in the AST systems.
5. (5) Where there are monitoring wells located at a facility, every monitoring well must be clearly identified as a monitoring well to prevent accidental delivery of petroleum to the monitoring well and must be sealed or capped so as to prevent liquid from entering the well from the surface.
6. (6) The facility must keep all gauges, valves, and other equipment for spill prevention in good working order.

7. (7) Immediately prior to a delivery, the carrier must determine that the AST has available working capacity to receive the volume of petroleum to be delivered. Every aspect of the delivery must be monitored and immediate action must be taken to stop the flow of petroleum when the working capacity of the AST has been reached or should an equipment failure or emergency occur.

   (b) Operation and maintenance of corrosion protection.

   Every facility having a category 2 or 3 metal AST system with corrosion protection must comply with the following requirements to ensure that a release due to corrosion is prevented until the AST system is permanently closed pursuant to section 613-4.5(b) of this Subpart:

8. (1) All corrosion protection systems must be operated and maintained to continuously provide corrosion protection to the metal components of that portion of the AST and piping that routinely contains petroleum and is in contact with the ground.

9. (2) All AST systems equipped with cathodic protection systems must be inspected for proper operation by a qualified cathodic protection tester in accordance with the following requirements:

   1. (i) frequency. Every cathodic protection system must be tested at yearly intervals; and

   2. (ii) inspection criteria. The criteria that are used to determine that cathodic protection is adequate as required by this section must be according to one of the following codes of practice (refer to section 613-1.10 of this Part for complete citation of references):

      1. (a) API RP 651, January, 2007; or
      2. (b) NACE RP0193-2001, 2001 edition.
10. (3) Every AST system with impressed current cathodic protection systems must also be inspected every 60 days to ensure the equipment is running properly.

11. (4) For AST systems using cathodic protection, records of the operation of the cathodic protection must be maintained to demonstrate compliance with the requirements of this section. The records generated to meet the provisions of paragraphs (2) and (3) of this subdivision must be kept for three years.

    (c) Compatibility.

    Every facility must use an AST system made of or lined with materials that are compatible with the petroleum stored in the AST system.

    (d) Repairs.

12. (1) Permanent repairs.

    1. (i) All repairs must be equal to or better than the standards of original construction. Such repairs must consist of:

       1. (a) steel welds or steel patches which are welded in place; or
       2. (b) practices set forth in paragraph (3) of this subdivision.
    2. (ii) All welds associated with the repair of an AST must be inspected and tested for tightness before the AST is returned to service.

13. (2) Cleaning of tank prior to repair.

    1. (i) Prior to repair, an AST must be cleaned. Wash water must not be discharged to the lands or waters of the State unless the discharge is in conformance with the standards of Parts 701, 702, 703, and 750 of this Title, as applicable.
    2. (ii) Sludge which has accumulated on the bottom of the AST must be removed, transported, and disposed of in a manner consistent with all applicable State and Federal requirements for solid waste disposal.

14. (3) Lining specifications.

    1. (i) Any noncorrodible epoxy-based resins or equivalent lining which is bonded firmly to the interior surfaces may be used as a lining to protect an AST from future corrosion.
    2. (ii) The lining must be of sufficient thickness, density, and strength to form a hard impermeable shell which will not crack, soften, or separate from the interior surface of the AST.
    3. (iii) The lining’s coefficient of thermal expansion must be compatible with steel so that stress due to temperature changes will not be detrimental to the soundness of the lining.
    4. (iv) The lining must be compatible with petroleum products and petroleum additives.
    5. (v) The lining material must be applied and cured in strict accord with manufacturer’s specifications.
    6. (vi) Linings used to protect the bottom of an AST must extend up the side of the tank a minimum of 18 inches.
15. (4) Inspection of lining. The lining must be checked for air pockets and blisters, and electrically tested for pinholes. The lining thickness must be checked with an Elcometer Thickness Gauge or equivalent and the hardness checked with a Barcol Hardness Tester or equivalent to assure compliance with manufacturer’s specifications. Any defects must be repaired.

16. (5) Manufacturer’s guarantee. A lining must be installed under the direction of the lining manufacturer or a certified representative. The manufacturer or representative must guarantee to the owner in writing that the lining will not leak the product specified in storage and the lining will not deteriorate in any way for a period of 10 years. A copy of the guarantee must be kept by the owner for the life of the AST.

    (e) Tank systems in locations subject to flooding.

    For category 1 and 2 AST system located in an area where the AST may become buoyant because of a rise in the water table, flooding, or accumulation of water, the facility must maintain safeguards in accordance with sections 2-5.6 of NFPA 30 (1984 edition). If such safeguards include ballasting of an AST with water during flood warning periods, tank system valves and other openings must be closed and secured in a locked position in advance of the flood. Ballast water removed from the AST after the flood must not be discharged to the waters of the State unless the discharge is in conformance with the standards of Parts 701, 702, 703, and 750 of this Title, as applicable.

    (f) Stormwater management.

    Stormwater which collects within the secondary containment system must be controlled by a manually operated pump or siphon, or a gravity drain pipe which has a manually controlled dike valve on the outside of the dike. All pumps, siphons and valves must be properly maintained and kept in good condition. If gravity drain pipes are used, all dike valves must be locked in a closed position except when the operator is in the process of draining clean water from the diked area. Stormwater or any other discharge at a facility must be uncontaminated and free of sheen prior to discharge. Stormwater which is contaminated must not be discharged to the waters of the State unless the discharge is in conformance with the standards of Parts 701, 702, 703, and 750 of this Title, as applicable.

(a) Spill and overfill prevention.