OHA Drinking Water Services
OR41
PWS ID: 93750 ---- WILLOWCREEK ELEM SD #84
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
Feb 01, 2026 DIST-A 1 1 1.6 1.0Y
Jan 01, 2026 DIST-A 1 1 2.8 1.0Y
Dec 01, 2025 DIST-A 1 1 1.7 0.9Y
Nov 01, 2025 DIST-A 1 2 0.3 0.8Y
Oct 01, 2025 DIST-A 1 1 0.4 0.8Y
Sep 01, 2025 DIST-A 1 2 0.1 1.0Y
Aug 01, 2025 DIST-A 1 1 0.1 1.1Y
Jul 01, 2025 DIST-A 1 1 0.2 1.2Y
Jun 01, 2025 DIST-A 1 1 0.4 1.4Y
May 01, 2025 DIST-A 1 2 1.3 1.5Y
Apr 01, 2025 DIST-A 1 1 3.2 1.5Y
Mar 01, 2025 DIST-A 1 2 0.4 1.2Y
Feb 01, 2025 DIST-A 1 0 1.4Y
Jan 01, 2025 DIST-A 1 1 1.8 1.4Y
Dec 01, 2024 DIST-A 1 1 0.6 1.2Y
Nov 01, 2024 DIST-A 1 0 1.8Y
Oct 01, 2024 DIST-A 1 2 1.8 1.8Y