OHA Drinking Water Services
OR41
PWS ID: 95018 ---- WASCO COUNTY FAIRGROUNDS
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 0.03 0.1Y
Jan 01, 2026 DIST-A 1 4 0.08 0.1Y
Oct 01, 2025 DIST-A 4 6 0.1 0Y
Jul 01, 2025 DIST-A 1 1 0 0Y
Apr 01, 2025 DIST-A 1 0 0Y
Jan 01, 2025 DIST-A 1 2 0 0Y
Oct 01, 2024 DIST-A 1 1 0.04 0Y