Water treatment dosing formulas

Identifies substantive water-treatment dosing formulas and control values. Topic phrases are retained for discovery; enforcement requires a populated dose, concentration, feed rate, or process value, and high confidence also requires a treatment-plant asset, process, or control-tag reference.

Type: regex
Engine: boost_regex
Confidence: medium
Confidence justification: Medium confidence requires a populated engineering value rather than a water-treatment topic alone. High confidence adds plant/process context, reducing matches on public guidance and chemistry lessons.
Detection quality: Topic false positive
Jurisdictions: global
Regulations: AML/CTF Act (Cth), HRIPA (Cth), IPA 2009 (Qld), My Health Records Act 2012 (Cth), NDB Scheme (Cth), Privacy Act 1988 (Cth), TIA Act 1979 (Cth)
Frameworks: ISO 27001, ISO 27701
Data categories: security
Scope: wide
Risk rating: 10
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?is)\b(?:water\s+treatment\s+dosing\s+formula|dosing\s+formula|chlorine\s+dosage|coagulant\s+dose|fluoride\s+dosing|pH\s+setpoint)\b

Corroborative evidence keywords

water treatment dosing formulas, water, treatment, dosing, formulas, critical, infrastructure, systems, turbidity, residual chlorine, E.coli, Escherichia coli, ADWG, Australian Drinking Water Guidelines, catchment, water quality, water treatment, wastewater, sewage, dam level (+1 more)

Proximity: 300 characters

Should match

water treatment dosing formula — Low-tier probe - dosing topic without populated engineering values
Chlorine dosage formula: target residual 0.8 mg/L and dose 2.4 mg/L — Medium-tier probe - populated treatment values without a plant asset
North water treatment plant dosing formula: dosing pump DP-04, coagulant dose 18.5 mg/L, SCADA tag AIT-204 — High-tier probe - populated dose with plant, pump, and control-tag detail

Should not match

unrelated generic text without domain phrases — No relevant topic phrases present
placeholder value 12345 — Random text should not match topic-specific regex
water treatment dosing — Generic word pair from old broad template should not match
The public drinking-water guide explains why utilities disinfect water. — Public guidance without a dosing formula or populated plant value
Training example: water treatment dosing formula for pump DP-04 at 18.5 mg/L — Explicit training content must not enforce

Known false positives

Public health guidance and chemistry material discuss chlorine, pH, coagulants, and water treatment without revealing a utility's operating values. Mitigation: Keep topic-only matches discovery-only and require a populated dose, concentration, or feed rate for enforcement.
Worked examples can contain plausible pump names, control tags, and dosing values. Mitigation: Reject explicit template, demo, tutorial, sample-data, and training-example framing from enforcing tiers.

References

https://www.legislation.gov.au/C2018A00029/latest/text
https://www.cyber.gov.au/resources-business-and-government/essential-cyber-security/ism