OHA Drinking Water Services
OR41
PWS ID: 95631 ---- FIRSTEMERALD LLC
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 0.2 2.5Y
Oct 01, 2025 DIST-A 1 1 5.7 3.8Y
Jul 01, 2025 DIST-A 1 1 0.8 3.8Y
Apr 01, 2025 DIST-A 2 2 3.2 3.8Y
Jan 01, 2025 DIST-A 1 1 5.7 3.1Y
Oct 01, 2024 DIST-A 1 1 5.7 1.7Y
Jul 01, 2024 DIST-A 1 1 0.7 0.4Y
Apr 01, 2024 DIST-A 1 1 0.2 0.2Y
Jan 01, 2024 DIST-A 1 1 0.2 0.2Y