OHA Drinking Water Services
OR41
PWS ID: 94758 ---- BLM RAND RNGR STA/INFO CTR
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
Nov 01, 2025 DIST-A 1 0 0Y
Oct 01, 2025 DIST-A 1 0 0Y
Sep 01, 2025 DIST-A 1 0 0Y
Aug 01, 2025 DIST-A 1 0 0Y
Jul 01, 2025 DIST-A 1 0 0Y
Jun 01, 2025 DIST-A 1 0 0Y
May 01, 2025 DIST-A 1 0 0Y
Oct 01, 2024 DIST-A 1 0 0Y
Sep 01, 2024 DIST-A 1 0 0Y
Aug 01, 2024 DIST-A 1 0 0Y
Jul 01, 2024 DIST-A 1 0 0Y
Jun 01, 2024 DIST-A 1 0 0Y
May 01, 2024 DIST-A 1 0 0Y
Oct 01, 2023 DIST-A 1 0 0Y
Sep 01, 2023 DIST-A 1 0 0Y
Aug 01, 2023 DIST-A 1 0 0Y
Jul 01, 2023 DIST-A 1 0 0Y
Jun 01, 2023 DIST-A 1 0 0.3Y
May 01, 2023 DIST-A 1 0 0.2Y
Oct 01, 2022 DIST-A 1 0 0.2Y
Sep 01, 2022 DIST-A 1 0 0.2Y
Aug 01, 2022 DIST-A 1 0 0.2Y
Jul 01, 2022 DIST-A 1 1 0.25 0.2Y
Jun 01, 2022 DIST-A 1 1 0.24 0.2Y
May 01, 2022 DIST-A 1 0 0Y
Apr 01, 2011 DIST-A 1 0 0.5Y
Oct 01, 2010 DIST-A 1 1 0 0.4Y
Sep 01, 2010 DIST-A 1 1 0.4400 0.5Y
Aug 01, 2010 DIST-A 1 1 0.4000 0.5Y
Jul 01, 2010 DIST-A 1 1 0.9400 0.5Y
Jun 01, 2010 DIST-A 1 1 0.7300 0.4Y
May 01, 2010 DIST-A 1 1 0.3500 0.4Y
Apr 01, 2010 DIST-A 1 0 0.3Y
Jan 01, 2010 DIST-A 1 1 0 0.4Y
Sep 01, 2009 DIST-A 1 0 0 0.4Y
Aug 01, 2009 DIST-A 1 1 0.6800 0.4Y
Jul 01, 2009 DIST-A 1 1 0.4600 0.4Y
Jun 01, 2009 DIST-A 1 1 0.4300 0.5Y
May 01, 2009 DIST-A 1 1 0.6Y
Apr 01, 2009 DIST-A 1 1 0.6300 0.7Y
Sep 01, 2008 DIST-A 1 0 0.7Y
Aug 01, 2008 DIST-A 1 0 0.7Y
Jul 01, 2008 DIST-A 1 1 0.9100 0.7Y
Jun 01, 2008 DIST-A 1 1 0.9100 0.6Y
May 01, 2008 DIST-A 1 1 0.2300 0.5Y
Apr 01, 2008 DIST-A 1 0 0.5Y
Sep 01, 2007 DIST-A 1 0 0.7Y
Aug 01, 2007 DIST-A 1 1 0.6700 0.6Y
Jul 01, 2007 DIST-A 1 1 0.5300 0.5Y
Jun 01, 2007 DIST-A 1 1 0.4200 0.5Y
May 01, 2007 DIST-A 1 0 0.5Y
Apr 01, 2007 DIST-A 1 1 1.1900 0.5Y
Sep 01, 2006 DIST-A 1 1 0.1000 0.4Y
Aug 01, 2006 DIST-A 1 1 0.3400 0.4Y
Jul 01, 2006 DIST-A 1 1 0.4700 0.4Y
Jun 01, 2006 DIST-A 1 1 0.5900 0.4Y
May 01, 2006 DIST-A 1 1 0.6000 0.3Y
Apr 01, 2006 DIST-A 1 1 0.0500 0.3Y
Sep 01, 2005 DIST-A 1 1 0.2200 0.4Y
Aug 01, 2005 DIST-A 1 1 0.3600 0.4Y
Jul 01, 2005 DIST-A 1 1 0.3200 0.5Y
Jun 01, 2005 DIST-A 1 1 0.2100 0.5Y
May 01, 2005 DIST-A 1 1 0.4000 0.6Y
Apr 01, 2005 DIST-A 1 1 0.9000 0.9Y
Oct 01, 2004 DIST-A 1 0 0Y
Sep 01, 2004 DIST-A 1 0 0Y