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AISCT® Sal: Precision Ion-Specific Salinity & Chloride Screening Unit

Replaces bulk electrical conductivity (EC), quantabs, and titration methods meters with precision Ion-Specific probes. Directly measures chloride (Cl⁻) and sodium (Na⁺) to provide demonstrating field to-lab data correlation exceeding 90%."

What Sal Does

The AISCT SAL System provides AI-integrated, ion-specific salinity screening for chloride (with sodium capability in development) in soil and water samples. It is designed for all phases of investigation and remediation on salt-impacted sites, including produced water releases, brine spills, road salt programmes, and industrial salt-release scenarios.

Sal employs a precision array of Ion Selective Electrodes (ISE) targeted specifically to the ions that regulatory bodies and laboratories actually measure — delivering matrix-independent, ion-specific field data with decision accuracy exceeding 90%.

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The Technical Problem Sal Solves

EC meter limitations in salinity characterization:

Non-specific measurement: EC responds to all dissolved ions — background minerals, moisture, temperature, and soil matrix — not specifically to chloride or sodium
Matrix interference: EC readings vary systematically with soil moisture content and temperature, producing phantom exceedances and missed impacts
No regulatory alignment: Alberta Tier 1, CCME, and AER Directive 085 specify chloride and sodium as regulatory parameters — neither of which EC can reliably speciate
False classification: EC-based field screening frequently triggers unnecessary laboratory submissions for clean samples while missing true regulatory exceedances in complex matrices

Sal's Ion Selective Electrode approach:

Measures chloride directly — the same parameter that laboratories measure and regulators evaluate
Matrix-independent performance: ISE response is specific to the target ion, not the total ion load
Decision accuracy exceeding 90%: validated against laboratory data across a range of site types and matrix conditions
AI interpretation: Sal's data model is trained on site-confirmed ISE/laboratory pairs, providing exceedance confidence metrics alongside raw results

Regulatory Alignment

Aurora was developed in direct alignment with published regulatory guidance such as:

Alberta Tier 1
Soil and Groundwater Remediation Guidelines

Salinity Parameters: Sal supports field-based screening against Alberta Tier 1 chloride and sodium criteria for upstream oil and gas scenarios

CCME Canadian Soil Quality Guidelines (CSQG):

Sal generates field data interpretable against CCME national benchmarks for chloride and salinity

AER Directive 058

Requirements for the handling, treatment, reuse, and disposal of oilfield wastes

CCME Vol. 1 Section 3

QA/QC: Sal incorporates automated calibration records, standard checks, and

Key Applications

Produced water and brine release investigations — Phase II and delineation
Upstream oil and gas salt spill response (AER Directive 085)
Road salt impact assessment
Remediation progress monitoring on salt-impacted sites
High-density chloride mapping for delineation and volume estimation
Water sample screening (with appropriate tube configuration)
View the SAL Case Study

Technical Specifications

Target Contaminants

Chloride (Cl⁻); sodium (Na⁺) capability in development

Measurement Principle

Precision Ion Selective Electrode (ISE) array — ion-specific, not bulk EC

Decision Accuracy

>90% classification accuracy vs. laboratory data

Sample Matrix

Soil and water

QA/QC Features

Automated calibration records, standard checks, step-down protocols, duplicates/triplicates

Regulatory References

Alberta Tier 1, CCME CSQG, AER Directive 085

Deployment

All phases of salt-impacted site investigation and remediation

Download the Sal Technical Bulletin

The AISCT Ecosystem Concept:

AISCT components can be deployed individually — Aurora on a vapour-driven hydrocarbon site, Sal on a brine release, Petro on a peat-heavy extractable HC programme. But they are designed to work together. When multiple contaminant classes are present on the same site, a multi-unit deployment produces an integrated dataset that no single instrument can provide.

The DSS platform is contaminant-agnostic: it ingests data from whichever units are deployed, maintains a unified site data record, and provides cross-contaminant intelligence that is invisible when instruments operate independently.

Learn More about the AISCT Ecosystem and configuration for your site!

Ready to Transform Your Field Characterization? Request a demonstration or order AISCT® hardware for your upcoming field program.