Citizen Portal

Activities | Home Page > FAQ's

What tests are conducted?

Substances of concern from the SOURCE (CATCHMENT)

  1. Natural Organic Matter (NOM)
  2. Virus (indicators)
  3. Micro-organisms (indicators)
  4. Protozoa
  5. Algae
  6. Inorganic pollutants
  7. Organic micro pollutants
  8. Pharmaceuticals + Endocrine disrupters

Substances of concern through TREATMENT and DISTRIBUTION

  1. Residuals from treatment chemicals
  2. Disinfection By-Products (DBP’s)
  3. Corrosion
  4. Bacterial re-growth (BDOC, AOC)
  5. Taste and odours


  1. Physical and organoleptic: Turbidity, pH, Conductivity, Colour, Alkalinity, Hardness
  2. Inorganic – anions: Cl, SO4, F, Br, NO3, NO2, PO4, ClO2, ClO3,
  3. Inorganic - cations non-metals: K, Na, Ca, Mg, NH4,
  4. Inorganic - cations metals: Fe, Mn, Al, Cd, Hg, Pb…
  5. Organics: DOC, COD, UV254, OA, THM, AOX
  6. Nutrients: TKN, PO4, NH4, NO3, NO2,
  7. Solids: TDS, TSS, TS, TFS, TVS, SS …


  1. Microbiology: HPC, Total coliform, Faecal coliform, E coli, Faecal streptococci, Pseudomonas aeroginosa,Clostridium (spores, viable)
  2. Virology: CPE+PCR, Somatic Coliphage,
  3. Biology: Giardia, Cryptosporidium, Algae, Toxins, Geosmin, 2MIB


  1. Disinfection: Free + Total CL2,
  2. Toxicity (acute): Daphnia, Bacterial growth, Urease enzyme
  3. Mutagenicity (chronic): Ames Salmonella (S98+S100)
  4. Plant performance: Corrosivity, Isotherms, Beaker settling tests, Sieve analysis, Lime test, Settling tests
  5. Specialised tests and studies:
    • Medical and other substances: Pharmaceuticals, Endocrine
    • Organic Pollution Index (OPI), Bromate

On-line monitoring instruments on telemetry:

  1. Turbidity, Conductivity, DO, Free - chlorine residual, pH, Particle counting, DOC/TOC, UV254, Nitrate, Ammonia
  2. Composite auto-samplers: Giardia, Crypto + Virus

Note: certain tests regarded as advanced non-routine tests are contracted out to laboratories either in South Africa or Europe.

What methods are used?

  1. Scientific Services uses the methods from the American Public Health Association, Standard Methods for the Examination of Water and Wastewater. 20th Edition. APHA Inc. Washington DC. Bridson E.Y (1998)

What guidelines are used?

  1. Namibian water quality guidelines
  2. US Environmental Protection agency (USEPA).
  3. EU guidelines.
  4. Guidelines for re-use and reclamation

Services rendered

  1. To City of Windhoek corporate operational and executive management.
  2. To institutions who have a concern in the quality testing.
  3. Industry.
  4. Private customers

Other activities

  1. Maintain a Laboratory Quality System according to ISO 17025
  2. Carry out applied research to improve treatment units, analytical test methods, sampling devices.
  3. Dairy testing for the City of Windhoek Health Division
  4. Train and supervise students and attachments in basic assignments, projects and laboratory methods
  5. Supervise post graduate students during their research
  6. Receive school groups and visitors to familiarise them with the different treatment plants and activities of the laboratory

Staff complement

  • Current structure Chief Scientist 1/1
  • Administrative Officer 1/1
  • Section Scientist Quality Assurance 1/1
  • LIMS Administrator 0/1
  • Section Scientist Chemistry 1/1
  • Analyst [Chemistry] 3/3
  • Assistant Analyst [Chemistry] 3/3
  • Section Scientist Microbiology 0/1
  • Analyst [Microbiology] 3/3
  • Assistant Analyst [Microbiology] 2/3
  • Support Officer 2/2
  • Section Scientist Process Control & Research 1/1
  • Researcher 0/1 Instrument Technician 1/1
  • Monitoring Program Administrator 0/1
  • Sampler / Field Tester 4/4

Note: Scientific Services is currently working towards accreditation.

< back to FAQ's

Citizen Portal Links

Random Images

City of Windhoek | The Gateway to Endless Opportunities

Info Portal

The heart of Namibia, Windhoek, possesses a unique charm due to its harmonious blend of African and European cultures and the friendliness of its people. It serves as a strategic point from which to ... go there

Citizen Portal

Windhoek - City of Many Faces. Pulsing with life, opportunity and the promise of adventure, Windhoek is a multicultural city, characterised by the tranquil co-existence and ample lebensraum for its people ... go there

Business Portal

The City as the capital in a well-organized country, possess the necessary infrastructure and services in place to attract key industry players. ... go there

Councillors Portal

Council is the highest decision making body of the Windhoek municipality. Windhoek is run by a multi-party organ of 15 Councillors
... go there

Tourism Portal

The charm of the City of Windhoek lies in its harmonious blend of African and European cultures and the friendliness of its people. Since Independence came to the country on 21 March 1990, ... go there

Department Portal

The City of Windhoek consists of the 9 departments, which are geared towards increasing service delivery to the residents of the Capital... go there

Media Portal

This portal is designed to keep the media informed of what is happening within the City of Windhoek. All media will be able to log onto the portal with their user details to access documents relevant for publication ... go there
City of Windhoek
The Gateway to Endless Opportunities
Online Statement Search Notifications
website by Intouch Interactive Marketing

Public Notices

Notice From: To: Location: More Details:
Water Management Plan 01 Nov 2018 30 Nov 2019 Windhoek Download PDF
Strategic plan at a glance 01 Jul 2017 30 Jun 2022 Windhoek Download PDF
Strategic plan at a glance - Pocket booklet 01 Jul 2017 30 Jun 2022 Windhoek Download PDF
Strategic Plan 01 Jul 2017 30 Jun 2022 Windhoek Download PDF
Institutional Land Policy 21 Sep 2018 30 Jun 2022 Windhoek Download PDF