OHA Drinking Water Services
OR41
PWS ID: 94134 ---- NPS JOHN DAY NM/CLARNO
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 1.13 1.2Y
Oct 01, 2025 DIST-A 1 1 1.3 1.3Y
Jul 01, 2025 DIST-A 1 1 1.48 1.2Y
Apr 01, 2025 DIST-A 1 1 0.78 1.1Y
Jan 01, 2025 DIST-A 1 1 1.53 1.3Y
Oct 01, 2024 DIST-A 1 2 1.12 1.1Y