OHA Drinking Water Services
OR41
PWS ID: 94135 ---- NPS JOHN DAY NM/PAINTED HILLS
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
Jan 01, 2026 DIST-A 1 1 0.46 0.9Y
Oct 01, 2025 DIST-A 1 1 0.38 0.9Y
Jul 01, 2025 DIST-A 1 1 0.76 1.0Y
Apr 01, 2025 DIST-A 1 1 1.92 1.1Y
Jan 01, 2025 DIST-A 1 1 0.7 0.7Y
Oct 01, 2024 DIST-A 1 2 0.77 0.8Y