OHA Drinking Water Services
OR41
PWS ID: 06138 ---- DIAMOND RIDGE WATER ASSOCIATION
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
Mar 01, 2026 DIST-A 1 1 0.41 0.6Y
Feb 01, 2026 DIST-A 1 1 0.71 0.6Y
Jan 01, 2026 DIST-A 1 1 0.82 0.6Y
Dec 01, 2025 DIST-A 1 1 0.74 0.5Y
Nov 01, 2025 DIST-A 1 1 0.43 0.5Y
Oct 01, 2025 DIST-A 1 1 0.65 0.4Y
Sep 01, 2025 DIST-A 1 1 0.85 0.4Y
Aug 01, 2025 DIST-A 1 1 0.31 0.4Y
Jul 01, 2025 DIST-A 1 1 0.2 0.4Y
Jun 01, 2025 DIST-A 1 1 1.51 0.4Y
May 01, 2025 DIST-A 1 1 0.53 0.3Y
Apr 01, 2025 DIST-A 1 1 0.48 0.2Y
Mar 01, 2025 DIST-A 1 1 0.19 0.2Y
Feb 01, 2025 DIST-A 1 1 0.1 0.2Y
Jan 01, 2025 DIST-A 1 1 0.1 0.2Y
Dec 01, 2024 DIST-A 1 1 0.2 0.2Y
Nov 01, 2024 DIST-A 1 1 0.2 0.2Y
Oct 01, 2024 DIST-A 1 1 0.23 0.2Y