OHA Drinking Water Services
OR41
PWS ID: 00558 ---- CHEHALEM VALLEY WATER ASSN
Maximum Residual Disinfection Level (MRDL) Samples
MRDL Monitoring Requirements :: Excel Spreadsheet

Monitoring
Period		 Entry
Point		 Samples
Required		 Samples
Collected		 Period
Avg		 Annual
Avg		 Level
Compliance
Jul 01, 2025 DIST-A 1 1 0.76 0.3Y
Jun 01, 2025 DIST-A 1 1 0.57 0.2Y
May 01, 2025 DIST-A 1 1 0.12 0.2Y
Apr 01, 2025 DIST-A 1 1 0.19 0.2Y
Mar 01, 2025 DIST-A 1 0 0.2Y
Feb 01, 2025 DIST-A 1 1 0.27 0.2Y
Jan 01, 2025 DIST-A 1 1 0.16 0.1Y
Dec 01, 2024 DIST-A 1 2 0.06 0.1Y
Nov 01, 2024 DIST-A 1 1 0.13 0.2Y
Oct 01, 2024 DIST-A 1 1 0.2 0.2Y
 



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