26.11.24.04

.04 Testing Requirements.

A. Testing Requirements for Stage II Stations. Except as provided in E and F of this regulation, an owner or operator of a gasoline dispensing facility subject to this chapter which operates Stage II Vapor Recovery systems shall perform the following CARB-approved tests.

(1) A leak test in accordance with the Vapor Recovery Test Procedure TP-201.3 referenced in Regulation .01-1B(1) of this chapter;

(2) An air to liquid volume ratio test in accordance with the Vapor Recovery Test Procedure TP-201.5 referenced in Regulation .01-1B(2) of this chapter.

(3) A dynamic pressure performance test in accordance with the Vapor Recovery Test Procedure TP-201.4 referenced in Regulation .01-1B(3) of this chapter;

(4) A vapor return line vacuum integrity test for the Healy Model 400 ORVR System in accordance with Executive Order G-70-186, Exhibit 4 referenced in Regulation .01-1B(4) of this chapter; and

(5) A vapor return line vacuum integrity test for the Healy Model 600 System in accordance with Executive Order G-70-165 Exhibit 4 referenced in Regulation .01-1B(5) of this chapter.

(6) A leak rate and cracking pressure test in accordance with TP-201.1E referenced in Regulation .01-1B(6).

(7) A tie tank test in accordance with TP-201.3C as referenced in Regulation .01-1B(7).

A-1. Testing Requirements for Decommissioned Stations and New Stations Installed after the effective date of this regulation that did not Install Stage II. Except as provided in §§E and F of this regulation, an owner or operator of a gasoline dispensing facility subject to this chapter who does not operate a Stage II Vapor Recovery system shall perform the testing requirements of §A(1), (6), and (7) of this regulation as specified in §C(2) of this regulation and repeat annually.

B. The leak and liquid blockage tests required in §A of this regulation shall be performed on each approved system before the gasoline dispensing facility is initially used to refuel motor vehicles, or by the applicable dates in Regulation .03 of this chapter, whichever occurs later.

C. Stage II Vapor Recovery System.

(1) An owner of a Stage II vapor recovery system subject to this chapter shall repeat the required tests:

(a) In accordance with the test schedule in §C(2) of this regulation; and

(b) Upon replacement of 75 percent or more of an approved system.

(2) Test Schedule.

Type of Stage II Vapor Recovery System Initial Test Frequency of Retest
(a) Vapor Balance System Dynamic Back Pressure 12 months
Leak Test 12 months
Leak Rate and Cracking Pressure 12 months
Tie-Tank Test 12 months
Liquid Blockage Test 5 years
(b) Vapor Assist System—Type 1 Air to Liquid Ratio Test 12 months
Leak Test 12 months
Leak Rate and Cracking Pressure 12 months
Tie-Tank Test 12 months
Liquid Blockage Test 5 years
(c) Vapor Assist System—Type 2 Model 400 Nozzle Regulation Test 12 months
Vapor Return Leak Tightness Test 12 months
Leak Rate and Cracking Pressure 12 months
Tie-Tank Test 12 months
(d) Vapor Assist System—Type 2 Model 600 Air to Liquid Ratio Test 12 months
Vapor Return Line Vacuum Integrity Test 12 months
Leak Rate and Cracking Pressure 12 months
Tie-Tank Test 12 months

D. If a gasoline dispensing facility fails any test required by this chapter, the owner shall notify the Department of the failure in writing within 5 working days after the test and before retesting.

E. Alternative test methods approved by CARB may be used in place of the test methods specified in §A of this regulation, if the alternative test methods are approved by the U.S. Environmental Protection Agency (EPA) as a revision to the State Implementation Plan, which is Maryland's plan for meeting the National Ambient Air Quality Standards.

F. Test methods and the frequency of testing required by this regulation may be modified for vapor assist systems, if the test methods and testing frequency are approved by the Department and the EPA.