OHA Drinking Water Services
OR41
PWS ID: 95118 ---- USACE COTTAGE GROVE
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 0.53 0.7Y
Aug 01, 2025 DIST-A 1 1 0.52 0.7Y
Jul 01, 2025 DIST-A 1 1 0.43 0.8Y
Jun 01, 2025 DIST-A 1 1 0.97 1.1Y
May 01, 2025 DIST-A 1 1 1.33 1.3Y