Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0011 - Water Quality
Chapter 28 - STANDARDS FOR ISSUING PERMITS FOR COMMERCIAL OILFIELD WASTE DISPOSAL FACILITIES
Section 28-9 - Engineering Design Report

Universal Citation: WY Code of Rules 28-9

Current through September 21, 2024

(a) An engineering design report is required for each permit application and shall include:

(i) A description of the facility site and location including:
(A) The legal description of the present and projected facility property boundary, including existing and proposed buildings and facilities; and

(B) The surface and mineral owner(s) of record.

(ii) A geotechnical report for the proposed site that includes:
(A) Groundwater information, including the depth to groundwater;

(B) A summary of all subsurface investigations;

(C) A subsurface soil profile;

(D) Exploration logs;

(E) Laboratory or in-situ test results;

(F) Interpretation and analysis of subsurface investigations;

(G) Specific engineering recommendations for design; and

(H) Solutions or discussion of anticipated problems.

(iii) A detailed description of the types of waste(s) to be accepted at the facility that includes, but is not limited to, the following:
(A) Produced water;

(B) Well completion and stimulation products;

(C) Wastes from production separators;

(D) Gas plant dehydration wastes;

(E) Gas plant sweetening wastes; and

(F) A list of anticipated generators of the waste(s);

(iv) A description of design conditions that includes:
(A) Identification of required performance characteristics of all construction materials;

(B) The type, size, strength, operating characteristics, rating or requirements for all:
(I) Mechanical and electrical equipment;

(II) Laboratory fixtures and equipment;

(III) Operating tools; and

(IV) Chemicals (where used).

(C) Construction and installation procedures;

(D) Testing requirements to ensure materials and equipment meet design standards;

(E) Waste treatment, storage, and disposal methods; and

(F) Summary of operation procedures.

(v) A geologic report, signed and sealed by a Wyoming Professional Geologist in accordance with W.S. § 33-41-115(c), that includes:
(A) A stratigraphic column that illustrates the thickness and geologic names of alluvial materials and geologic formations that comprise the unsaturated, or vadose, zone;

(B) A description of the lithology and hydraulic conductivity of materials and geologic formations comprising the unsaturated zone, the first encountered groundwater, and the uppermost aquifer underlying the proposed facility;

(C) A potentiometric map of the uppermost water bearing zone beneath the facility that:
(I) Illustrates the locations and use of all wells within one (1) mile of the proposed facility, clearly identifying those wells producing in whole, or in part, from the uppermost water bearing zone, and including project borings or wells; and

(II) Includes a description of the uppermost aquifer in terms of its relative confinement, permeability, and porosity.

(vi) Documentation that the proposed facility will comply with Water Quality Rules and Regulations Chapter 3, Section 18;

(vii) A sampling and analysis plan that satisfies the monitoring requirements of Section 11 of this Chapter; and

(viii) Details of the leak detection system that satisfies the requirements of Section 11 of this Chapter.

(b) Engineering design drawings are required for each permit application and shall include:

(i) On each page:
(A) A suitable title block that includes the applicant's name, facility name, and Division assigned COWDF identification number, and the revision date and number; and

(B) The seal and signature of the Wyoming Professional Engineer.

(ii) A plan set that includes:
(A) A scaled site plan; and

(B) A cover sheet with an index as the first page of each plan set.

(iii) The following components:
(A) North arrow and drawing scale;

(B) Legend;

(C) Fencing and security;

(D) Topographic features and contours with indicated datum;

(E) Soil and subsurface geological characteristics;

(F) Location of soil borings, bedrock elevations, and seasonal high groundwater elevations;

(G) Locations and dimensions of piping, including those in and under buildings;

(H) The location of all cross-sections and profiles, which shall be identified in the plan views;

(I) Locations of buildings, evaporation ponds, pits, tanks, utilities, and roads;

(J) Scaled geologic cross-sections with the evaporation ponds' geometry, monitoring wells, borings, and groundwater observations (if present) superimposed on the geologic cross-sections;

(K) Present and proposed access, including a map of the access route(s) to the facility from the nearest public road;

(L) The distances to occupied dwelling buildings or school buildings; and

(M) Prevailing wind direction.

Disclaimer: These regulations may not be the most recent version. Wyoming may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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