DWR_3552694

• Rule Name: Geothermal Rules ‎(2CCR-402-10)‎
• Document Type - Rulemaking: Final Actions
• Subject: RULES AND REGULATIONS FOR PERMITTING THE DEVELOPMENT AND APPROPRIATION OF GEOTHERMAL RESOURCES THROUGH THE USE OF WELLS
• Date Effective: 9/30/2004

Geothermal Rules
Effective Date: September 30, 2004
their receipt of the notice if they are opposed to the proposed well construction. The
application shall specify if the well is to be used to explore or appropriate a geothermal
resource, and if so, specify the proposed production rate and disposal of the geothermal
fluid. Any secondary uses of the geothermal fluid or recovery of by-products shall be
identified in the application. The application shall be supplemented with evidence
showing that notice was given as provided above, and that the appropriation meets the
provisions of Section 37-90.5-107 (3) or (4), C.R.S. (2003), and:
a. if the geothermal fluid appropriated is from a nontributary source as
defined in section 37-90-103(10.5), C.R.S. (2003), the appropriation must
comply with the Statewide Nontributary Ground Water Rules, 2 CCR 402-
7 (1986);
b. if the well is located in the Denver Basin, the appropriation must comply
with the Denver Basin Rules, 2 CCR 402-6 (1985);
C. if the well is located in a Designated Ground Water Basin, the
appropriation must comply with the Ground Water Commission Rules, 2
CCR 410-1 (1992).
6.2.3.4 A permit may require reinjection of a geothermal fluid if
necessary for the maintenance of the underground pressure and temperature, the
prevention of subsidence, or the disposal of brine, and/or to prevent material injury to
any valid, prior water or geothermal rights.
6.2.4 Application for a Reinjection Well - A permit application shall be
submitted prior to the construction or use of, each reinjection well (Type A or Type B),
and the State Engineer shall give notice to appropriate government agencies (see Rule
6.6). Prior to submitting an application, the applicant shall give notice of the proposed
well construction to the owners or operators of any valid, prior water or geothermal
rights that are located within one half ('/2) mile of the proposed well. The notice shall be
sent by certified mail, return receipt requested, and shall include a copy of the permit
application. The notice shall instruct the owners or operators that they must submit a
written objection to the State Engineer within forty-five (45) days of their receipt of the
notice if they are opposed to the proposed well construction.
6.2.4.1 An application to construct or use a reinjection well shall
include geological information and construction information showing that the geothermal
fluid is being reinjected into the same reservoir or aquifer from which geothermal fluid is
being appropriated. In addition, an application for a permit to construct or use a
reinjection well with a proposed injection rate greater than fifteen (15) gpm or
anticipated injection pressure greater than one hundred (100) psi shall be supplemented
with construction plans and the following minimum information:
a. the casing and cementing programs;
b. depths to the top and bottom of the injection interval;
C. anticipated injection rates, pressures, and temperatures; and,
d. anticipated annual injection volume.
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