Water quality analysis: Hygiene and water quality management of bathwater.

The inspection items for public bathhouses are established by ordinances in each prefecture, and there is no uniform standard nationwide. Please contact us for the necessary inspection items.

last updated Jul 15, 2025

Water quality analysis - Analysis of discharge water

We maintain high precision through the implementation of internal and external precision management!

last updated Jul 15, 2025

Water quality analysis, bacteria testing

We also support testing for Cryptosporidium and Legionella bacteria!

last updated Jul 15, 2025

Water Quality Analysis: Hygiene and Water Quality Management of Pool Water

There are two types of pools: those for schools and those for swimming. The inspection items vary depending on the type of pool, so please contact us for more details.

last updated Jul 15, 2025

Water quality analysis leaching tests for water supply materials and equipment.

Please leave the water quality testing when switching to a direct water supply system to Naito Environment!

last updated Jul 15, 2025

Set of inspection items required for the hygiene management of "water used" in HACCP compliance.

Is water quality testing for "used water" being conducted? When carried out, selecting an appropriate set of testing items for each facility is key to hygiene management.

last updated Jul 15, 2025

Water quality analysis - Legionella species testing (bathtub water, humidifiers, cooling towers, etc.)

Legionella: As short as 10 business days!

last updated Jul 15, 2025

[Water Quality Analysis] Drinking Water Inspection: Various materials such as "The Basics of the Water Supply Act" will be provided!

ISO 17025 certified! We offer drinking water testing in accordance with the Water Supply Act. Various materials such as "The Basics of the Water Supply Act" are also available!

last updated Jul 15, 2025

[Latest Edition] Drinking Water and Tap Water Frequently Asked Questions Q&A Pamphlet

We have compiled frequently asked questions about drinking water and tap water into a Q&A format!

last updated Jul 15, 2025

Water quality analysis, product analysis, analysis of organic fluorine compounds (PFOS, PFOA)

Leave the analysis of well water, purified water, river water, groundwater, and products for PFOS and PFOA to Naito Environmental Management!

last updated Jul 15, 2025

Water quality analysis for dialysis water

Testing of chemical contaminants: 12 items of dialysis water quality standards.

last updated Jul 15, 2025

Water quality analysis - Legionella species testing (bathtubs, cooling towers, humidifiers, etc.)

We will assist you in maintaining and managing your equipment through Legionella testing!

last updated Jul 15, 2025

Water quality analysis, bacteria testing

In addition to general bacteria in drinking water, we also conduct tests for Legionella and Cryptosporidium!

last updated Jul 15, 2025

PCB analysis (insulating oil, wipe test, coating, sealing materials, etc.)

We support various PCB analyses. Please feel free to consult with us.

last updated Jul 15, 2025

Guide to Dedicated Water Supply (Saitama Prefecture Edition)

To everyone managing dedicated water supply systems! Introducing the responsibilities of the installer and the duties of the water supply technical manager.

last updated Jul 15, 2025

Presentation of a booklet on regulations: PFAS (Per- and polyfluoroalkyl substances) analysis

Are you prepared for future PFAS regulations? Leave the analysis of PFAS (per- and polyfluoroalkyl substances) in products to us! We are also offering explanatory materials.

last updated Jul 15, 2025