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ERWAT Laboratory services, a SANAS 17025 accredited laboratory, offers the water industry a wide variety of services in the fields of chemical and microbiological analyses, as well as expert advice on water-related problems.

Main Objectives:

  • To serve clients and the environment
  • To support clients in wastewater investigations
  • To analyse low to high-range concentrations on samples
  • To handle large volumes of samples
  • To offer affordable scientific services in a short turnaround time


Chemical and microbiological analysis

Analysis of wastewater, drinking water, swimming pool water, dairy and food products, rivers and boreholes


Evaluation of effluent processes, dams, lakes and river systems

Wastewater and potable water treatment

Operation and management

Process control

Monitoring programmes

Process problem solving

Industrial Processes

Industrial processes and effluent monitoring programmes

Industrial effluent treatment, plant operation and control

Product loss control and effluent quality surveys

Pollution risk surveys

Sewer and storm-water pollution control

Oil-trap monitoring and services

Effluent process optimisation


Assistance with the drafting and implementation of municipal wastewater discharge permits or by-laws


Monitoring programmes

Automatic liquid sample hire

Borehole sampling and analysis

Chemical and microbiological evaluations


Wastewater effluent plant operation, troubleshooting and problem solving



Total Coliforms

Feacal Coliforms

Heterotrophic Plate Count


E. coli

Feacal Streptococcus

Pseudomonas aeruginosa (quantitative)

Sulphur Reducing Bacteria (SRB)

Milk analysis

Yeast and molds

Sludge and soil

Volatile Fatty Acids

Kjeldahl Nitrogen

Total Phosphorus


% Water

% Total solids

% Volatile matter

Sludge classifications according to sludge guidelines

Helminth ova

Activated sludge (microscopic analysis)

GC-MS Analysis

Gas chromatography/mass-spectrometry (GC-MS) applications on a variety of liquid and solid sample matrices.

GC-MS analysis (organic determinants-based on EPA method specifications):

Volatile organic compounds (VOC’s) including BTEXN; components

Semi-volatile organic compounds (SVOC’s) including PAH’s and Phenols

Polychlorinated Biphenyls (PCB’s)

Organochlorine Pesticides (OCP’s)

Organophosphorous Pesticides (OPP’s)

Total Petroleum Hydrocarbons (TPH-GC) including Gasoline Range Organics (GRO’s and Diesel Range Organics (DRO’s)

Organics fingerprinting (GC-MS Scans)

PCR Analysis

Specialised services - pathogen detection

Rapid detection of waterborne pathogens using real-time Polymerase Chain Reaction (PCR):

SANAS (ISO 17025) accredited real-time PCR assays

Highly specific and rapid results (available within 24-48 hours)

Qualitative (present/absent) PCR analyses currently available include:

Salmonella enterica

Shigella species and/or entero-invasive E. coli (EIEC)

Toxigenic Vibrio cholerae (cholera causing)

Serotyping of Salmonella by means of PCR also available:

Salmonella Typhimurium

Salmonella Enteritidis

Salmonella Typhi

Salmonella Group B screen

Automated Photometric Analysis

Low range potable; and borehole specialised analysis



Contact Details

Telephone (local): 011 929 7014/7000
Telephone (international): +27 11 929 7014/7000
Facsimile (local): 011 929 7065
Facsimile (international): +27 11 929 7065
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


Telephone: +27 11 929 7000

Facsimile: +27 11 929 7031


General email:

Laboratory email:

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