Water Quality Analysis Techniques Course

Lesson 1 • Biological Constituents in Water

Examines bacteria, algae, protozoa, and viruses as biological water quality indicators. Links microbial presence to health risk assessment and monitoring priorities.

Lesson 2 • Chemical Contaminants and Pollutants

Surveys inorganic ions, heavy metals, nutrients, and organic pollutants found in water sources. Provides context for selecting appropriate analytical methods in later chapters.

Lesson 3 • Basic Water Chemistry Concepts

Introduces pH, alkalinity, hardness, and dissolved oxygen as core chemical parameters. Connects chemical equilibria to real-world water behaviour and treatment needs.

Lesson 4 • Physical Properties of Water

Covers temperature, turbidity, colour, odour, and conductivity as primary physical indicators. Establishes baseline measurement concepts used throughout all subsequent analytical work.

Lesson 1 • Laboratory Safety Fundamentals

Covers hazard communication, personal protective equipment, chemical storage, and emergency response. Creates a safety-first culture required before any hands-on analytical work begins.

Lesson 2 • Data Review and Reporting Standards

Teaches systematic data review, flagging of out-of-control results, and preparation of compliant analytical reports. Connects QA outcomes to regulatory data usability requirements.

Lesson 3 • Quality Control Sample Types

Defines method blanks, matrix spikes, duplicates, and certified reference materials and their roles in QC. Teaches students to detect contamination, bias, and precision failures systematically.

Lesson 4 • Glassware, Reagents, and Standards

Explains proper selection, cleaning, and calibration of volumetric glassware and preparation of reagents and standards. Directly affects the accuracy of every quantitative measurement performed.

Lesson 1 • Chain of Custody and Documentation

Establishes legal and scientific documentation requirements from sample collection to laboratory receipt. Ensures data defensibility for regulatory submissions and litigation support.

Lesson 2 • Principles of Representative Sampling

Defines representativeness, spatial variability, and temporal variability in water bodies. Establishes why poor sampling design invalidates even the most precise laboratory analysis.

Lesson 3 • Field Measurement Techniques

Teaches in-situ measurement of pH, dissolved oxygen, conductivity, and temperature using portable meters. Emphasises calibration, drift correction, and real-time data recording.

Lesson 4 • Sample Preservation and Handling

Details chemical preservation, temperature control, and holding times for each analyte class. Prevents sample degradation that would compromise laboratory accuracy.

Lesson 1 • Nutrient Analysis by Wet Chemistry

Covers digestion and colorimetric procedures for total nitrogen, total phosphorus, and nitrate. Integrates digestion safety, reagent preparation, and interference management into a complete workflow.

Lesson 2 • Gravimetric and Filtration Methods

Teaches Total Suspended Solids, Total Dissolved Solids, and residue-on-evaporation determinations. Emphasises filter selection, drying protocols, and balance technique for reliable mass measurements.

Lesson 3 • Titrimetric Analysis Techniques

Covers acid-base, complexometric, and redox titrations applied to alkalinity, hardness, and dissolved oxygen. Builds manual dexterity and endpoint recognition skills essential for wet chemistry.

Lesson 4 • Dissolved Oxygen and BOD Determination

Performs five-day Biochemical Oxygen Demand tests and electrochemical DO measurement with full QC. Connects BOD results to organic loading assessment and effluent compliance evaluation.

Lesson 1 • Electrochemical and Sensor-Based Methods

Covers ion-selective electrodes, amperometric sensors, and online analysers for continuous water monitoring. Connects sensor output to real-time process control and alarm threshold management.

Lesson 2 • Ion Chromatography for Anion Analysis

Uses ion chromatography to quantify fluoride, chloride, nitrate, sulphate, and other anions simultaneously. Covers column selection, suppressor operation, and gradient elution optimisation.

Lesson 3 • Gas Chromatography for Organics

Applies GC with FID and ECD detectors to volatile and semi-volatile organic compound analysis. Covers extraction, purge-and-trap, and column selection for water matrices.

Lesson 4 • Mass Spectrometry Coupled Techniques

Introduces GC-MS and LC-MS/MS for confirmation and quantification of trace organics and pharmaceuticals. Emphasises selected ion monitoring, fragmentation patterns, and method detection limits.

Lesson 1 • Coliform and E. coli Detection Methods

Applies membrane filtration, multiple-tube fermentation, and Colilert methods to detect total coliforms and E. coli. Connects indicator organism counts to drinking water compliance decisions.

Lesson 2 • Molecular Methods in Water Microbiology

Introduces qPCR, digital PCR, and next-generation sequencing for rapid pathogen detection and community profiling. Compares molecular sensitivity and specificity against culture-based reference methods.

Lesson 3 • Aseptic Technique and Media Preparation

Establishes sterile technique, autoclave operation, and culture media preparation as prerequisites for all microbiological work. Prevents contamination that would invalidate microbial enumeration results.

Lesson 4 • Pathogen Detection and Protozoa Analysis

Covers concentration, staining, and microscopic identification of Cryptosporidium and Giardia using EPA-equivalent methods. Addresses recovery efficiency, false positives, and confirmation steps.

Lesson 1 • Trend Analysis and Time Series

Applies Mann-Kendall, seasonal decomposition, and regression to detect temporal trends in monitoring data. Connects trend findings to source water protection and treatment optimisation decisions.

Lesson 2 • Descriptive Statistics for Water Data

Calculates mean, median, standard deviation, and percentiles for water quality datasets. Establishes the statistical vocabulary needed for all subsequent data interpretation and reporting tasks.

Lesson 3 • Detection Limits and Censored Data

Explains method detection limits, reporting limits, and statistical treatment of non-detect values. Prevents common errors in averaging and trend analysis caused by below-detection results.

Lesson 4 • Spatial Analysis and Mapping

Uses interpolation, kriging, and GIS visualisation to map contaminant distributions across a watershed. Supports source identification, monitoring network optimisation, and stakeholder communication.

Lesson 1 • Watershed-Scale Monitoring Programmes

Designs long-term, multi-site monitoring programmes aligned with management objectives and resource constraints. Balances statistical power, cost, and logistical feasibility across diverse water body types.

Lesson 2 • Water Quality Index Development

Constructs composite Water Quality Indices by weighting and aggregating multiple parameters into a single score. Enables rapid communication of overall water status to non-technical decision-makers.

Lesson 3 • Source Apportionment Techniques

Applies receptor modelling, isotope ratios, and chemical fingerprinting to identify pollution sources. Directly supports enforcement actions, remediation planning, and watershed management strategies.

Lesson 4 • Professional Report Writing and Presentation

Structures technical reports with executive summaries, methods, results, and recommendations for diverse audiences. Develops data visualisation and oral presentation skills for regulatory and public forums.