Accredited Water Testing — All Regulated Categories
Water is one of the most tightly regulated environmental media. Water utilities and municipalities are required to carry out regular quality control of drinking water under the Minister of Health regulation. OIKOS performs accredited physicochemical and biological water testing across the full range of categories — and is the only laboratory in the region holding Wrocław State Sanitary Inspectorate (PPIS) approval for testing water intended for human consumption. Reports are issued under PCA accreditation No. AB 934 (PN-EN ISO/IEC 17025).
PPIS Wrocław Approval — Decision Nr 308/25
OIKOS is authorised by the State County Sanitary Inspector in Wrocław to test water intended for human consumption. Drinking-water reports issued by OIKOS are accepted by Polish regulators as proof of compliance with the Minister of Health regulation.
Why OIKOS for Water Testing
Five reasons our water testing stands out — including a regulatory endorsement that goes beyond accreditation:
- PPIS Wrocław approval — our drinking water results are accepted by sanitary authorities as proof of compliance with the Minister of Health regulation
- Full spectrum of water categories — drinking, well, pool, groundwater, surface, rainwater, industrial, boiler and cooling water
- AB 934 (PN-EN ISO/IEC 17025) accreditation — reference methods, controlled measurement uncertainty, results ready for regulatory submission
- On-site sample collection by trained staff — reducing your sampling error risk
- 35 years of experience in water testing for utilities, municipalities and industry
From Drinking Water to Industrial Process Water
OIKOS performs accredited physicochemical and biological water testing across the full range of categories: drinking and tap water, well water, swimming pool and bathing area water, piezometer water, groundwater and deep groundwater, surface water, rainwater and meltwater, as well as industrial, process, boiler and cooling water.
Our laboratory holds approval from the Wrocław State County Sanitary Inspector (PPIS Wrocław) for testing water intended for human consumption — a regulatory endorsement that goes beyond accreditation alone, meaning your results are directly accepted by sanitary authorities.
OIKOS holds AB 934 accreditation (PN-EN ISO/IEC 17025) and PPIS Wrocław approval. Operating continuously since 1988, serving over 1,000 clients with two thirds returning on a recurring basis. Part of the European viridiusLAB AG network.
Methods & Instruments
Methods
Physicochemical and microbiological analysis: HPLC-UV, GC-FID, IC, MP-AES, UV-VIS spectrophotometry, gravimetry, titration, culture on selective media.
Instruments
Chromatographs, MP-AES, UV-VIS spectrophotometer, pH-meter, conductivity meter, DO meter, turbidimeter, microbiology incubators, sterile sample containers.
Reference documents
PN-EN ISO 5667 (water sampling); Polish MoH regulation on drinking water; MMME regulation on surface waters; full list of standards in AB 934 Scope.
FAQ
Water Testing Questions
What approval does OIKOS hold for drinking water testing?
OIKOS holds approval from the Wrocław State County Sanitary Inspector (PPIS Wrocław) for testing water intended for human consumption, in accordance with the Minister of Health regulation. This is a regulatory endorsement of laboratory competence, meaning our test results are directly accepted by sanitary authorities.
How often must drinking water be tested?
The frequency of drinking water testing is set by regulation — for water utilities it depends on the volume supplied and the number of consumers served. For private water sources (e.g. workplace wells), intervals are determined by risk assessment or the conditions of the water law permit. Contact us — we will help establish the right schedule.
Which parameters are included in standard drinking water analysis?
Standard drinking water analysis covers physicochemical parameters (including pH, hardness, turbidity, colour, conductivity, nitrates, nitrites, ammonia, iron, manganese, chlorine) and biological parameters (coliform bacteria, E. coli, enterococci, total microbial count). The full scope of monitoring and review parameters is defined by the Minister of Health regulation. The scope can be extended to include e.g. heavy metals, pesticides or polycyclic aromatic hydrocarbons.
Does OIKOS test private well water?
Yes. We carry out accredited well water testing both as part of mandatory monitoring for workplaces and on request from private well owners. We tailor the scope to the purpose — a basic sanitary assessment or an extended analysis taking into account local conditions.