Md. Code Regs. 26.10.05.04

Current through Register Vol. 51, No. 22, November 1, 2024

Section 26.10.05.04 - Inventory Control

A. Inventory Variations.

(1) An owner and an operator of a UST system shall review the reconciled inventory records required by COMAR 26.10.04.01 for the following:

(a) Inventory variations exceeding 1 percent plus 130 gallons of the metered quantity of a regulated substance each calendar month; and

(b) Daily inventory records that show 7 consecutive days of shortage totaling 80 gallons or more.

(2) An owner and an operator of a UST system shall conduct a review of reconciled inventory records at the following frequencies:

(a) Review inventory variation as required under §A(1)(a) of this regulation monthly; and

(b) Review daily inventory records as required under §A(1)(b) of this regulation daily.

(3) Reporting and Investigating Inventory Variations.

(a) An operator of a UST system shall report a variation or shortage as described in §A(1) of this regulation to the owner of the UST system;

(b) Upon discovery of an inventory variation, an owner and an operator of a UST system shall immediately investigate the cause of the variation or shortage;

(c) If the investigation required under §A(3)(b) of this regulation reveals no indication of a discharge or release from a UST system, an owner and an operator of a UST system shall state the cause of the inventory variation or shortage in the daily inventory records; and

(d) If the investigation required under §A(3)(b) of this regulation reveals a discharge or release from a UST system, an owner and an operator of a UST system shall follow the procedures established under COMAR 26.10.08.

B. The Department may require an owner and an operator of a UST system to perform a precision tightness test of the UST system:

(1) If the owner and the operator fail to reconcile daily inventory records as specified in COMAR 26.10.04.01 and review the reconciled records in accordance with §A of this regulation;

(2) If the owner and the operator fail to comply with monthly release detection requirements of Regulation .05 of this chapter; or

(3) For any other good cause as determined by the Department.

C. The Department may require an owner and an operator of a UST system to perform a precision tightness test of the UST system and install monitoring wells or conduct a site assessment if there is reason to believe there is or may have been a discharge or release of a regulated substance from the UST system.

Md. Code Regs. 26.10.05.04

Regulation .04 amended effective January 12, 2009 (36:1 Md. R. 25)
Regulation .04B amended effective June 29, 1998 (25:13 Md. R. 997)
Regulation .04C amended effective February 18, 2002 (29:3 Md. R. 224); January 16, 2006 (33:1 Md. R. 39); adopted effective 49:12 Md. R. 642, eff. 6/13/2022