Water hygiene and environmental hygiene

Standardized methods and governmental quality control (accredited according to EN ISO/IEC 17020 and EN ISO/IEC 17025) guarantee professional sample collection and high-quality chemical and microbiological analysis and reports.

We are happy to assist you with technical questions and can provide expertise, assessments and consulting regarding drinking water, bathing water and surface water testing.

The assessments we make can also be used as requested by agencies such as the food safety agency or building authority.

Frequently Asked Questions (FAQs)

Range of services

Drinking water

Drinking water testing according to the Drinking Water Ordinance (TWV)

Minimum testing
- Chemical parameters:
  - Temperature
  - Color, appearance, taste
  - Coloring (436nm)
  - pH value
  - Electrical conductivity (20°C)
  - Calcium, magnesium, sodium, potassium
  - Total water hardness
  - Carbonate hardness
  - Acid capacity
  - Iron, manganese, ammonium, nitrite, nitrate, chloride, sulfate
  - TOC (total organic carbon)
- Bacteriological parameters
  - CFU 22 (colony forming units at 22°C incubation temperature)
  - CFU 37 (colony forming units at 37 °C incubation temperature)
  - Escherichia coli
  - Enterococci
  - Pseudomonas aeroginosa (after treatment)
  - Clostridium perfringens (after treatment)
- Other parameters on request
Routine testing
- Chemical parameters:
  - Temperature
  - Color, appearance, taste
  - Coloring (436nm)
  - pH value
- Bacteriological parameters
  - CFU 22 (colony forming units at 22°C incubation temperature)
  - CFU 37 (colony forming units at 37 °C incubation temperature)
  - Escherichia coli
  - Enterococci
  - Pseudomonas aeroginosa (after treatment)
  - Clostridium perfringens (after treatment)
- Other parameters on request
Extensive monitoring (complete testing)
- Chemical parameters:
  - Temperature
  - Color, appearance, taste
  - Coloring (436nm)
  - pH value
  - Electrical conductivity (20°C)
  - Calcium, magnesium, sodium, potassium
  - Total water hardness
  - Carbonate hardness
  - Acid capacity
  - Iron, manganese, ammonium, nitrite, nitrate, chloride, sulfate
  - TOC (total organic carbon)
  - Bromate, fluoride
  - Aluminum, nickel, chrome, arsenic, mercury, antimony, selenium, zinc, copper, lead, cadmium, uranium
  - Aromatic hydrocarbons
  - Cyanide, boron
  - Halogenated hydrocarbons
  - Pesticides
- Bacteriological parameters
  - CFU 22 (colony forming units at 22°C incubation temperature)
  - CFU 37 (colony forming units at 37 °C incubation temperature)
  - Escherichia coli
  - Enterococci
  - Pseudomonas aeroginosa
  - Clostridium perfringens
- Other parameters on request

Home wells (home installation) and springs

Well depth and water level testing
Water treatment testing
- During the planning of softening plants, UV disinfection plants, deacidification plants, deferrization plants and demanganization plants
Inspection of reservoir facilities (elevated tanks, ponds)
Inspection of wells and springs
Industrial and irrigation water testing
Drinking water quality testing (minimum testing)
Chemical parameters:
- Temperature
- Color, appearance, taste
- Coloring (436nm)
- pH value
- Electrical conductivity (20°C)
- Calcium, magnesium, sodium, potassium
- Total water hardness
- Carbonate hardness
- Acid capacity
- Iron, manganese, ammonium, nitrite, nitrate, chloride, sulfate
- TOC (Total organic carbon)
Bacteriological parameters
- CFU 22 (colony forming units at 22°C incubation temperature)
- CFU 37 (colony forming units at 37°C incubation temperature)
- Escherichia coli
- Enterococci
- Pseudomonas aeroginosa (after treatment)
- Clostridium perfringens (after treatment)
Other parameters on request

Bathing water (indoor swimming pools, outdoor swimming pools, thermal baths)

Bathing water testing and inspection according to the Bath Hygiene Act (current version)
We offer regular, annual/biannual/quarterly testing as standing order solutions.

Testing before discharge into retaining basins

Chemical parameters:
- Temperature
- pH value on site
- Free chlorine
- Bound chlorine
- Turbidity
- pH value
- Electrical conductivity (20°C)
- Calcium, magnesium, sodium, potassium
- Total water hardness
- Carbonate hardness
- Acid capacity
- Iron, ammonium, nitrite, nitrate, chloride, sulfate
- Aluminum
- TOC (total organic carbon)
- Trihalomethane (THM)
Bacteriological parameters
- CFU 37 (colony forming units at 37°C incubation temperature)
- Escherichia coli
- Enterococci
- Pseudomonas aeroginosa
Other parameters on request

Bathing water (small swimming pond)

Chemical parameters:
- Temperature
- Water transparency
- Oxygen (%, mg)
- Color
- pH value (20°C)
- Electrical conductivity (20°C)
- Phosphorus
- Ammonium
- TOC (total organic carbon)
Bacteriological parameters
- Escherichia coli
- Enterococci
- Pseudomonas aeroginosa (after treatment)
- Fecal coliforms
Other parameters on request

Legionella analysis

Testing of:

Hot water
Water heaters
Cooling towers
Dental operatories
Car wash facilities

If the Legionella test is positive, the serogroup is determined.

Sample collection and inspection

Drinking water sample collection according to ÖNORM M 5874. Parameters investigated on site:
- Temperature
- Organoleptics
- pH value
- Electrical conductivity (20°C)
- Free chlorine
- Bound chlorine
- Oxygen content
- Well depth and water level
Drinking water inspection:
- Water supply facilities
- Water treatment facilities
- Springs
- Wells
- Artesian wells
- Storage tanks: elevated tanks, underground tanks, etc.
Bathing water sample collection according to BGBl. II no. 321/2012 (2012-9) Bathing water inspection
- Pools
- Filter monitoring
- Water treatment
- Hydrological cycle
- Surveys according to the Bath Hygiene Act
Bathing water sample collection (small bathing pond) according to ÖNORM ISO 5667 Parameters investigated on site:
- Temperature
- Oxygen content
- Water transparency
- Coloring
- Oil film
- Solids
Delivered samples (by arrangement with the lab)
Self-collection of samples for information (report)
See sample collection leaflet and water testing submission form

Special tests

Heating water: Testing of heating water according to ÖNORM H 5195-1
Mineral water: Testing of mineral water according to the Mineral and Spring Water Ordinance
- Ongoing quarterly monitoring
- Internal monitoring
- Hygiene monitoring on request
Ultrapure water: Testing of ultrapure water according to ÖNORM EN 285 (current version)
- Testing of feedwater and condensates in sterilizers and steam boilers
- Fully desalinated water
- Quality monitoring of ultrapure water
Surface contact cultures
Microbiological hygiene monitoring of surfaces to determine the success of cleaning and disinfection

Environmental hygiene

Microbiological testing of environmental samples (on request)
Testing of sewage sludge according to Klärschlammverordnungen (sewage sludge ordinances) – ÖNORM S 2204, ISO 9308-2
Testing of cooling lubricants (ISO 9308-2, ISO 6222)
Testing of plant extracts according to MQM and SCCP guidelines