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Underground Injection Control (UIC)

Public Notice: Proposed UIC Permit Modification for Cosmopolitan Unit, Cook Inlet, Alaska

Publish Date: 11/29/2018


The EPA has direct implementation responsibility in Alaska for the regulation of Class I injection wells through the Underground Injection Control (UIC) Program, authorized by Part C of the Safe Drinking Water Act. Class I injection wells dispose of fluids beneath any aquifers which could serve as current or future underground sources of drinking water (USDWs).

Wastes allowed for injection include: treated domestic wastewater, drilling muds and cuttings, well workover fluids, melt and storm water, facility water, production water and other exempt and non-exempt non-hazardous fluids.

The EPA is proposing three actions:

  1. Issuance of an aquifer exemption for portions of aquifers within one quarter mile of the proposed well bore at 3000-6500 feet true vertical depth (TVD).
  2. Determination of "no USDW" for portions of aquifers within one quarter mile of the proposed well bore at deeper than 6500 feet TVD.
  3. Modification of UIC Permit AK-1I016-A to change the location of a permitted well.

The EPA has determined that these actions present no risk to public health or the environment and will not impact drinking water aquifers in the area. The EPA reached this conclusion by evaluating materials provided by the permittee and through independent research.

Administrative Record

Electronic copies of the draft permit and fact sheet are available under "Related Documents" below.

Copies of documents are also available upon request to Ryan Gross (, 206-553-6293.

Applicant or Respondent

BlueCrest Alaska Operating LLC
3301 C Street, Suite 202
Anchorage, AK 99503

Permit #: AK1I016-A

Related Documents

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