OHA Drinking Water Services
OR41
PWS ID: 00890 ---- LONG PRAIRIE WATER DISTRICT
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
Apr 01, 2026 DIST-A 2 2 0.75 0.8Y
Mar 01, 2026 DIST-A 1 1 0.71 0.8Y
Feb 01, 2026 DIST-A 1 1 0.8 0.8Y
Jan 01, 2026 DIST-A 1 1 0.89 0.8Y
Dec 01, 2025 DIST-A 1 1 0.59 0.8Y
Nov 01, 2025 DIST-A 1 1 0.72 0.8Y
Oct 01, 2025 DIST-A 1 1 0.74 0.8Y
Sep 01, 2025 DIST-A 1 1 0.81 0.8Y
Aug 01, 2025 DIST-A 1 1 0.79 0.8Y
Jul 01, 2025 DIST-A 1 1 0.86 0.8Y
Jun 01, 2025 DIST-A 1 1 0.85 0.8Y
May 01, 2025 DIST-A 1 1 0.77 0.8Y
Apr 01, 2025 DIST-A 1 1 0.76 0.8Y
Mar 01, 2025 DIST-A 1 1 0.78 0.8Y
Feb 01, 2025 DIST-A 1 1 0.85 0.8Y
Jan 01, 2025 DIST-A 1 1 0.79 0.8Y
Dec 01, 2024 DIST-A 1 1 0.84 0.8Y
Nov 01, 2024 DIST-A 1 1 0.75 0.8Y
Oct 01, 2024 DIST-A 1 1 0.79 0.8Y