EDG Entities

Water Management

Legionella- Test  order with blood sample. Healthcare or Medical concept

Legionella Testing

Identify legionella in your water systems to ensure compliance with federal safety standards.

Modern Industrial Reverse Osmosis Water Treatment Facility

Reverse Osmosis System Services

We provide expert maintenance for reverse osmosis systems. Our team ensures your system runs efficiently and improves water quality by removing contaminants.

High-Tech Pharmaceutical Manufacturing Line in Operation

Sterile Processing Services

End-to-end SPD support—instrument decontamination, assembly, sterilization (steam & low-temp), biological monitoring, and AAMI ST79–aligned documentation.

Industrial Gas Cylinders on Overhead Conveyor in Factory

Deionized Tank Exchange

Scheduled DI resin tank swaps with on-site resistivity testing, chain-of-custody tagging, and rapid exchange to keep water quality in spec.

Engineers discussing blueprint near industrial pipes

Deionized Water System Maintenance

Preventive care—prefilter/carbon changeouts, resin testing & rebed, system sanitization, leak checks, calibration, and quality reporting.

Cooling Tower

Cooling Tower & Boiler Water Treatment

Biocide and scale/corrosion control with routine monitoring per ASHRAE 188/Guideline 12 and ASME CRTD-34, aligned with VHA 1061 programmatic controls for aerosol-generating systems.

Drinking water production plant. Female worker inspecting of water pump system, pipes station, Water pressure system, tank, drinking water filling machine

Dialysis Water Quality Testing & System

Verify RO/DI and distribution meet ANSI/AAMI/ISO 23500 chemistry, bacteria, and endotoxin limits with trending and corrective action; operate within VA’s dialysis care policy.

Dentist's sink

Dental Unit Waterline Testing/Disinfection

Treat and monitor DUWLs so output water is ≤500 CFU/mL per CDC/ADA; VA procurement commonly references this requirement.

heating engineer in boiler room

Backflow Preventer Testing, Repairs, And Replacements

Annual certified testing, repairs/replacements, and records per EPA Cross-Connection Control Manual and AWWA M14 (2024), implemented to VA design criteria (PG-18-10 Plumbing Design Manual).

Plumber change water filter. Replacement aqua filter. Technician maintenancing system of water filtration.

Point-Of-Use Filtration

Use 0.2-µm filters that comply with ASTM F838 as an immediate control within the facility’s Water Management Program, consistent with VHA 1061