Commercial testing

Unitywater Laboratory provides a range of analytical services for environmental and regulatory monitoring for civil and construction projects, stock and irrigation programs, camp site water quality monitoring, greywater systems, swimming pools. The Unitywater Laboratory holds NATA accreditation for a range of chemicalmicrobiological and sampling services


  Commercial testing services:

Air-conditioning cooling towers

  • Legionella and heterotrophic colony count in compliance with AS 3666 and AS 3896.

Domestic waste-water treatment systems

Drinking Water

Freshcare Compliance Monitoring

  • Freshcare is a HACCP-based Food Safety and Quality Program for growers and grower-packers for the sale of fresh produce and to supply supermarkets with your products. The Unitywater laboratory has NATA accreditation for the testing required.

Landfill Monitoring

  • As per individual permit requirements.

New Mains

  • New mains must meet certain water quality criteria before they are accepted by Unitywater. Refer to the table below for a list of the criteria. 

Water Quality Acceptance Criteria*


Units Existing Mains  New Mains
pH   > 6.5 and < 8.5  > 6.5 and < 9.2 
Apparent Colour  PCU < 15 < 15
Turbidity NTU < 5 < 5
EC  (µS/cm) < 1250 < 1250
Free chlorine residual  mg/L - < 3
Total chlorine residual  mg/L - < 3
E.coli  (mpn/100mL) < 1 < 1
Total Coliforms  (mpn/100mL) < 1 < 1 OR < 10#
Heterotrophic Plate Count  (cfu/mL) < 100 < 100

*Sources:Whilst the quoted water quality criteria are compliant with WSAA Water Supply Code of Australia and guidance provided in the Australian Drinking Water Guidelines 2011 (ADWG), some minor modifications have been included to simplify this table for easier use as well as accommodate Unitywater specific requirements (e.g. HPC acceptance requirement adapted for Unitywater).

# <10 mpn/100mL total coliforms will be accepted IF total chlorine is greater than 0.5mg/L. If total chlorine is equal to or less than 0.5mg/L, total coliforms must be <1cfu/100mL.

On-site Sampling - See Sampling.


Recreational Water Quality

Recycled Water

Sewage Treatment Plants

  • As per individual license requirements.

Swimming Pools and Spa’s

  • Queensland Health has published the Swimming and Spa Pool Water Quality and Operational Guidelines in 2004. These guidelines provide advice and water quality standards for pool managers, as well as protocols for dealing with incidents such as faecal accidents or dealing with pool water that has been contaminated with Cryptosporidium.

Trade Waste

  • As per individual permit requirements.


  • Testing can be undertaken to check for compliance with the NHMRC Guidelines for Managing Risks in Recreational Water.

For further details on our services including on-site sample collection and on-site field tests please contact Unitywater on 1300 086 489 or

    Did You Know
  • Approximately one pool in every 20 has a leak! Even a minor leak can result in a major water loss.  Under pressure a tiny leak can lose more than 3000 litres a day.