AMS_EYDAP_Athens_ApplicationBrief_04.25

Published on by in Case Studies

AMS_EYDAP_Athens_ApplicationBrief_04.25

The Athens Water Supply & Sewerage Company S.A. (EYDAP) is the largest company supporting the water supply and sewerage sectors in Greece, covering the needs of more than 40% of the country’s population by supplying the Attica region with drinking water, the quality of which is among the best in Europe. Until now, EYDAP’s water quality control department has relied on manual samples and laboratory measurements for trihalomethane (THM) analysis. EYDAP recently undertook an evaluation of an online

THM analytical solution — the THM-100™ manufactured by AMS — to take pressure off its laboratory and obtain same-day results on THM values in their network.

The online THM-100 analyzer was connected to the drinking water reservoir outlet of the Galatsi Water Treatment Plant (WTP) in Athens for a three-month period, providing EYDAP with continuous online analysis of THM values.

During the demonstration, AMS used the onboard health monitoring system to measure the THM-100 analyzer performance 24/7/365. The continuous real time remote monitoring of the analyzer’s performance allowed AMS to mitigate EYDAP concerns about working with a technology provider located 6,788 miles away and with a 10-hour time difference. The real-time THM data helped EYDAP to understand how the total THM (TTHM) concentration and THM speciation composition are affected by changes in raw source water quality and chlorine contact time.

With the help of the reliable data provided by the THM-100, EYDAP could better mitigate the presence of harmful THMs across the service area.

https://ams-h2o.com/wp-content/uploads/2025/04/AMS_EYDAP_Athens_ApplicationBrief_04.25.pdf

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