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Boardwalk Hydrogeology - Capable of Long Term, Consistent High Volume Lithium Brine Production

CALGARY, Alberta, Oct. 13, 2022 (GLOBE NEWSWIRE) -- LithiumBank Resources Corp. (TSX-V: LBNK) (OTCQX: LBNKF) (“LithiumBank” or the “Company”) is pleased to announce that the hydrogeological study and well network design at the 100% owned Boardwalk Lithium Brine Project, located in west-central Alberta, has been completed. “The exceptional flow rates at Boardwalk as determined from this study are one of the most critical factors that contribute to the economics of the NI 43-101 Preliminary Economic Assessment that is nearing completion” stated Rob Shewchuk, CEO.  


  • The proposed well network within the “Production Zone” of the PEA is found within and adjacent to the Sturgeon Lake South Oil Pool.
  • The producing area of the PEA represents only 25% of the Leduc reservoir at Boardwalk.
  • The hydrogeological study utilizes past production data which includes data from over 28 wells with drill stem test and 65 wells with lithium brine assays.
  • Of the 65 wells with assay data, 4 are wells that LithiumBank re-entered and sampled in 2021.
  • Results show that the key hydraulic parameters within the Leduc allow for consistent, high volume brine production over the assessment period of 20 years.
  • A multi-well pad production network has been designed for improved economics and reduced surface disturbance.
  • Suitable formations have been identified for re-injection of processed lithium barren brines to eliminate the possibility of dilution into the Leduc.

LithiumBank engaged GLJ Ltd. and Fluid Domains Inc. to conduct a hydrogeological study and well network design as part of the Boardwalk Preliminary Economic Assessment (the “PEA”). The study area for the PEA shown as the “Production Zone” in Figure 1 is where the majority of past oil and gas production occurred within the Leduc Formation since the 1960’s. This area was selected because of its past production history providing down hole data from over 400 wells (of the over 550 in the Leduc) and lithium and multi-element assay analysis from 40 of the overall 65 wells within the Leduc Formation.

The hydraulic characteristics indicate that the Leduc Formation at Boardwalk is favourable for high volume, long-term production of the lithium-rich brine. The hydrogeology and well network design to be used in the PEA considers a 20-year period of production and is capable of a daily production rate of 250,000 cubic metres of brine. The production zone consists of approximately 25% of LithiumBank’s Mineral Permits in the Leduc Formation at the Boardwalk project where LithiumBank has 100% of the mineral rights.

The well network is designed to have multiple wells from each well pad. Multi-well pads will minimize surface disturbance and reduce unnecessary infrastructure between wells and the Direct Lithium Extraction (DLE) facility. This strategy benefits the environment and reduces upfront capital expenditures.

The proposed multi-well brine production pads will also be utilized to reinject brine that has been processed through the DLE facility (barren brine) into disposal wells. Disposal of the barren brine will be reinjected into multiple formations, other than the Leduc, that lay stratigraphically above the Leduc as well as below the Leduc. Reinjecting barren brine into formations other than the Leduc will eliminate any possibility of diluting future lithium resources and mitigating capital expenditures when considering moving lithium depleted brine over any distance. Figure 2 illustrates a simplified x-section of the lithium brine extraction and disposal.

The information reported by GLJ and Fluid Domains will be incorporated into the PEA that is being led by Hatch Ltd. LithiumBank engaged Hatch Ltd. (see news release dated July 19, 2022, to complete the PEA and is working closely with the leading engineering firm to continue to advance the report forward as it nears completion.

Rob Shewchuk, CEO states, “We are very pleased to see such strong technical support for Boardwalk indicating the necessary reservoir parameters required to sustain a sizable lithium-brine project over a long period of time. A project of this magnitude has the potential to be a meaningful contributor to the global supply of lithium that continues to be challenged by a supply side imbalance. Growth in demand for lithium is expected to continue to be very strong through the coming decades in an era of rapid electrification. The comparatively small footprint and ESG friendly development of Boardwalk, when compared to traditional hard rock and salar lithium mining projects, could provide an opportunity to produce battery grade lithium at scale and in a sustainable manner that we believe has excellent alignment with the broader environmental and sustainability initiatives that are currently being emphasized and supported across resource development industries globally.”

Image 1

Figure 1: Proposed “Production Zone” from LithiumBank’s Boardwalk Lithium Brine Project

Image 2

Figure 2. Simplified schematic of brine production and disposal from the Boardwalk lithium brine project

The Boardwalk (formally Sturgeon Lake) Leduc Formation Li-brine inferred resource, with an effective date of May 18th, 2021, is globally estimated at 1,122,000 tonnes of elemental Li at an average lithium concentration of 67.1 mg/L Li in 16.7 km3 of formation brine volume (Table 2). The global (total) lithium carbonate equivalent (LCE) for the inferred mineral resource is 5,973,000 tonnes LCE at an average grade of 67.1 mg/L Li (as reported in LithiumBank’s news release dated May 31, 2022).

Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no guarantee that all or any part of the mineral resource will be converted into a mineral reserve. While bench-scale, and demonstration pilot plants operated by companies other than LithiumBank are reportedly having success in the recovery of high purity battery-grade lithium from subsurface confined aquifers, DLE technology is in the development stage and has not yet been proven at commercial scale.

Table 2. Boardwalk (formally Sturgeon Lake) Leduc Formation Li-brine NI 43-101 inferred resource estimate presented as a global (total) resource.

Reporting parameterLeduc Formation Reef Domain
Aquifer volume321.99 (km3)
Brine volume16.72 (km3)
Average lithium concentration67.1 (mg/L)
Average porosity5.3 (%)
Average brine in pore space98.0 (%)
Total elemental lithium resource1,122,000 (tonnes)
Total lithium carbonate equivalent5,973,000 tonnes (LCE)

Note 1: Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no guarantee that all or any part of the mineral resource will be converted into a mineral reserve. The estimate of mineral resources may be materially affected by geology, environment, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.
Note 2: The weights are reported in metric tonnes (1,000 kg or 2,204.6 lbs).
Note 3: Tonnage numbers are rounded to the nearest 1,000 unit.
Note 4: In a ‘confined’ aquifer (as reported herein), porosity is a proxy for specific yield.
Note 5: The resource estimation was completed and reported using a cut-off of 50 mg/L Li.
Note 6: In order to describe the resource in terms of industry standard, a conversion factor of 5.323 is used to convert elemental Li to Li2CO3, or Lithium Carbonate Equivalent (LCE).

The scientific and technical disclosure in this news release has been reviewed and approved by Mr. Kevin Piepgrass (Chief Operations Officer, LithiumBank Resources Corp.), who is a Member of the Association of Professional Engineers and Geoscientists of the province of BC (APEGBC) and is a Qualified Person (QP) for the purposes of National Instrument 43-101. Mr. Piepgrass consents to the inclusion of the data in the form and context in which it appears.

About LithiumBank Resources Corp.

LithiumBank Resources Corp. is an exploration and development company focused on lithium-enriched brine projects in Western Canada where low-carbon-impact, rapid DLE technology can be deployed. LithiumBank currently holds over 3.77 million acres of mineral titles, 3.44M acres in Alberta and 326K acres in Saskatchewan. LithiumBank’s mineral titles are strategically positioned over known reservoirs that provide a unique combination of scale, grade and exceptional flow rates that are necessary for a large-scale direct brine lithium production. LithiumBank is advancing and de-risking several projects in parallel of the Boardwalk Lithium Brine Project.


Rob Shewchuk
CEO & Director
(778) 987-9767

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Statement Regarding Forward Looking Statements

This release includes certain statements and information that may constitute forward-looking information within the meaning of applicable Canadian securities laws, including statements regarding the expected continued growth in demand for lithium, plans and expectations regarding the Boardwalk project, and expectations regarding the completion and timing of the PEA. All statements in this news release, other than statements of historical facts, including statements regarding future estimates, plans, objectives, timing, assumptions or expectations of future performance. Generally, forward-looking statements and information can be identified by the use of forward-looking terminology such as “believes”, “intends” or “anticipates”, or variations of such words and phrases or statements that certain actions, events or results “may”, “could”, “should”, “would” or “occur”. Forward-looking statements are based on certain material assumptions and analysis made by the Company and the opinions and estimates of management as of the date of this press release, including there will be continued growth in demand for lithium, that the hydrogeological study will support a PEA that shows an economically viable multi-decade DLE project and that the project will be scalable, that the PEA will be completed on the timetable anticipated. These forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forward-looking statements or forward-looking information. Important factors that may cause actual results to vary, include, without limitation the risk that the demand for lithium will fall or not grow as anticipated, the risk that the PEA will not be completed on the timetable anticipated or at all, and the risk that the PEA will not shows an economically viable multi-decade DLE project or that the project will not be scalable. Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statement, forward-looking information or financial out-look that are incorporated by reference herein, except in accordance with applicable securities laws.

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