OHA Drinking Water Services
OR41
PWS ID: 91509 ---- SAMS VALLEY ELEM SD #6
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 0.4 0.1Y
Jul 01, 2025 DIST-A 1 2 0 0Y
Apr 01, 2025 DIST-A 1 2 0 0Y
Jan 01, 2025 DIST-A 1 0 0Y
Oct 01, 2024 DIST-A 1 1 0 0Y