Sec. 26.10.05.01. Release Detection: General Requirements for All UST Systems

A. Owners and operators of new and existing UST systems shall provide a method, or combination of methods, of release detection that:

(1) Can detect a release from any portion of the tank and the connected underground piping that routinely contains a regulated substance;

(2) Is installed, calibrated, operated, and maintained in accordance with the manufacturer's instructions, including routine maintenance and service checks for operability or running condition;

(3) Meets the performance requirements in Regulation .04 of this chapter as verified by the manufacturer's specifications;

(4) Shall be capable of detecting the leak rate or quantity specified in this chapter with a probability of detection of not less than 0.95 and a probability of false alarm of not more than 0.05; and

(5) Is inspected, field tested, or calibrated as may be required to ensure that the method is being maintained and operated properly to detect a release in accordance with the requirements of this chapter.

B. When a release detection method operated in accordance with the performance standards in Regulation .04 of this chapter indicates that a release may have occurred, owners and operators shall notify the Department in accordance with COMAR 26.10.08.

C. An existing UST system that cannot apply a method of release detection that complies with the requirements of this chapter shall be closed in accordance with procedures in COMAR 26.10.10.

D. A person may not tamper with, or render inaccurate, any monitoring device or method required to be maintained under this chapter.