PURPOSE: This rule contains the new requirements for walkthrough inspections of underground storage tank systems.

PUBLISHER’S NOTE: The secretary of state has determined that the publication of the entire text of the material which is incorporated by reference as a portion of this rule would be unduly cumbersome or expensive. This material as incorporated by reference in this rule shall be maintained by the agency at its headquarters and shall be made available to the public for inspection and copying at no more than the actual cost of reproduction. This note applies only to the reference material. The entire text of the rule is printed here.

1. (1) To properly operate and maintain underground storage tank (UST) systems, owners and operators must ensure the following requirements are met:

   1. (A) Owners and operators must ensure walkthrough inspections are conducted as follows:

      1. 1. Spill prevention equipment must be

checked at least once every thirty (30) days, 10 CSR 26-2

or prior to each delivery for USTs that receive deliveries less frequently than once every thirty (30) days. The person(s) conducting the inspection must visually check for any damage, remove liquid or debris, check for and remove obstructions in the fill pipe, check the fill cap to make sure it is securely on the fill pipe, and for double-walled spill prevention equipment using interstitial monitoring, check for a leak in the interstitial area; and

1. 2. Release detection equipment must be

checked at least once every thirty (30) days. The person(s) conducting the inspection must check to make sure the release detection system is operating with no alarms or other unusual operating conditions present and ensure records of release detection testing are reviewed monthly and are current;

1. (B) At least annually, owners and operators must ensure the following is done:

   1. 1. Containment sumps required in 10

CSR 26-2.020 or 10 CSR 26-2.021, including tank top or submersible turbine pump, under-dispenser, and transition or intermediate sumps, must be visually checked for any damage, leaks to the containment sump area, or releases to the environment; liquid or debris must be removed; and the interstitial space of double walled containment sumps must be checked for leaks; and

1. 2. Tank gauge sticks or other hand held

release detection equipment must be checked for operability and serviceability;

1. (C) The first walkthrough inspections in this section are due—

   1. 1. Immediately upon installation for new

UST systems installed after July 1, 2017; or

1. 2. No later than January 1, 2020, for

existing UST systems;

1. (D) Owners and operators may use the following codes to comply with this rule:

   1. 1. Petroleum Equipment Institute RP 500-

11, Recommended Practices for Inspection and Maintenance of Motor Fuel Dispensing Equipment. This document is incorporated by reference without any later amendments or modifications. To obtain a copy, contact the Petroleum Equipment Institute, Box 2380, Tulsa, OK 74101-2380, (918) 494-9696, www.pei.org;

1. 2. Petroleum Equipment Institute RP

900-08, Recommended Practices for Inspection and Maintenance of UST Systems. This document is incorporated by reference without any later amendments or modifications. To obtain a copy, contact the Petroleum Equipment Institute, Box 2380, Tulsa, OK 74101-2380, (918) 494-9696, www.pei.org; and

1. 3. Another method approved by depart-

ment, including code(s) of practice developed by a nationally recognized association(s) or independent testing laboratory(ies), determined to be no less protective of human health and the environment than the requirements listed in this rule; and

1. (E) Owners and operators must maintain records (in accordance with 10 CSR 26- 2.034) of the inspections required by this rule for one (1) year. The record must include a list of each area checked, whether each area checked was acceptable or needed action, and a description of any actions taken as a result of the inspection. AUTHORITY: sections 319.105, 319.107, and 319.137, RSMo 2016.* Original rule filed Aug. 15, 2016, effective May 30, 2017. *Original authority: 319.105, RSMo 1989; 319.107, RSMo 1989, amended 1994; and 319.137, RSMo 1989, amended 1993, 1995, 2004.