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 28-11 - Monitoring and Reporting Requirements

Universal Citation: WY Code of Rules 28-11

Current through September 21, 2024

(a) All applications for a permit to construct shall include:

(i) Documentation that demonstrates the groundwater monitoring wells comply with the construction standards of Water Quality Rules and Regulations Chapter 26;

(ii) Either the information required by Water Quality Rules and Regulations Chapter 3, Section 17(a) or the information required by Water Quality Rules and Regulations Chapter 3, Section 17(b)(ii) through (viii);

(iii) The ambient groundwater quality information for all monitoring wells for the Department to use to determine the groundwater class of use;
(A) The monitoring wells shall be sampled and tested prior to any wastewater disposal into the evaporation ponds; and

(B) The monitoring wells shall be sampled and tested one (1) time for the parameters listed in Water Quality Rules and Regulations, Chapter 8, Table 1.

(iv) A groundwater monitoring program as required by Water Quality Rules and Regulations Chapter 3, Section 17(d) and (e), and plans for record-keeping and reporting.

(v) The operational monitoring plan shall include a sampling and analysis plan for each evaporation pond.
(A) The sampling and analysis plan shall identify the evaporation pond locations and the methodology to be used to conduct monitoring at the evaporation ponds; and

(B) The analyte list and monitoring frequency are subject to revision as required by the Administrator.

(b) After approval by the Administrator, the monitoring program shall be incorporated as a permit condition to ensure compliance with Water Quality Rules and Regulations Chapter 8, Section 4(d)(v)(A) and Section 4(d)(vi)(A).

(c) All monitoring shall be conducted in accordance with an Administrator-approved sampling and analysis plan. The sampling and analysis plans shall be included as part of the operation and maintenance (O&M) Plan.

(d) Leak detection system monitoring.

(i) The leak detection system's inspection pipes shall be inspected weekly for the first month and monthly thereafter.

(ii) The permittee shall keep a log of the inspection results. If fluid is found:
(A) The permittee shall notify the Administrator within twenty-four (24) hours of discovery.

(B) The operator shall obtain samples from the inspection pipes and the evaporation cell(s) that have been tested, in accordance with US EPA SW-846, for total petroleum hydrocarbons (TPH) (modified for gasoline and diesel range hydrocarbons), chlorides, total dissolved solids (TDS) and sulfates.

(C) The permittee shall report the sample results to the Administrator as soon as they are available.

(e) Within ten (10) days of discovering a leak or fluid in the leak detection system, the permittee shall submit a plan and schedule to investigate the leak and repair the liner.

(f) Facilities that transfer wastewater shall:

(i) Maintain written records of all wastewater transfers that include:
(A) The date(s) of transfer;

(B) The volume of wastewater to be transferred;

(C) A description of the method of transfer;

(D) A copy of the written agreement(s) between the facility and the receiving parties that will be accepting the wastewater for reuse that identifies:
(I) The name, address, legal description by latitude and longitude, and telephone number for the receiving party;

(II) The receiving party's intended use of the transferred wastewater; and

(III) The location(s) where the wastewater will be applied or reused.

(ii) Maintain onsite all records required in this section and make the records available to Division representatives upon request. All records shall be compiled in an approved format and shall be included in the annual report, as required by Section 8(a)(vii) of this Chapter;

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