### Question
Can you define what reservoir means?


### Answer
**Reservoir** is defined as the following in *30 U.S.C. § 1522*:

> the physical subsurface geologic structure which forms the natural repository for the undisturbed geothermal resource

#### Citation:
  - *30 U.S.C. § 1522*
  - Heading: **CHAPTER 27-GEOTHERMAL ENERGY > SUBCHAPTER II-STUDY, ESTABLISHMENT, AND IMPLEMENTATION OF INSURANCE PROGRAM**

