OHA Drinking Water Services
OR41
PWS ID: 00370 ---- BLACK MOUNTAIN WATER DISTRICT
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
Apr 01, 2026 DIST-A 1 1 0.03 0.1Y
Mar 01, 2026 DIST-A 1 1 0.11 0.1Y
Feb 01, 2026 DIST-A 1 1 0.03 0.1Y
Jan 01, 2026 DIST-A 1 1 0.34 0.1Y
Dec 01, 2025 DIST-A 1 1 0.06 0.1Y
Nov 01, 2025 DIST-A 1 1 0.05 0.1Y
Oct 01, 2025 DIST-A 1 1 0.06 0.1Y
Sep 01, 2025 DIST-A 1 1 0.07 0.1Y
Aug 01, 2025 DIST-A 1 1 0.1 0.1Y
Jul 01, 2025 DIST-A 1 1 0.09 0.1Y
Jun 01, 2025 DIST-A 1 1 0.009 0.1Y
May 01, 2025 DIST-A 1 1 0.49 0.1Y
Apr 01, 2025 DIST-A 1 1 0.06 0.1Y
Mar 01, 2025 DIST-A 1 1 0.12 0.1Y
Feb 01, 2025 DIST-A 1 1 0.04 0Y
Jan 01, 2025 DIST-A 1 1 0.01 0Y
Dec 01, 2024 DIST-A 1 1 0.02 0.1Y
Nov 01, 2024 DIST-A 1 0 0.1Y
Oct 01, 2024 DIST-A 1 1 0.08 0.1Y