OHA Drinking Water Services
OR41
PWS ID: 91055 ---- OPRD CASCADIA STATE PARK
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
Sep 01, 2025 DIST-A 1 1 0.57 0.4Y
Aug 01, 2025 DIST-A 1 1 0.43 0.3Y
Jul 01, 2025 DIST-A 1 1 0.3 0.3Y
Jun 01, 2025 DIST-A 1 1 0.25 0.3Y
May 01, 2025 DIST-A 1 1 0.38 0.4Y