OHA Drinking Water Services
OR41
PWS ID: 90182 ---- NPS JOHN DAY NM/SHEEP ROCK
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
Oct 01, 2025 DIST-A 1 1 0.44 0.4Y
Jul 01, 2025 DIST-A 1 1 0.33 0.5Y
Apr 01, 2025 DIST-A 1 1 0.36 0.5Y
Jan 01, 2025 DIST-A 1 1 0.54 0.6Y
Oct 01, 2024 DIST-A 1 2 0.67 0.7Y