OHA Drinking Water Services
OR41
PWS ID: 01475 ---- OREGON WATER UTILITIES - MOUNTAIN LAKES
Lead & Copper

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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
8/5/2024  -  8/7/2024 5 3 years 0 0.020
8/5/2024  -  8/7/20248/20/2024 5 3 years 0 0.020 9/6/2024
8/5/2021  5 3 years 0 0.022
8/5/2021  8/19/2021 5 3 years 0.0002 0.022 8/26/2021
8/14/2018  -  8/20/2018 5 3 years 0 0.013
8/14/2018  -  8/20/20188/29/2018 5 3 years 0.0012 0.013
8/31/2015  -  9/1/2015 5 3 years 0 0.025
8/31/2015  -  9/1/20159/11/2015 5 3 years 0.0009 0.025
9/17/2012  10/1/2012 5 3 years 0.0005 0.025
7/15/2009  8/5/2009 5 3 years 0.0015 0.029
12/6/2006  1/5/2007 5 3 years 0.0021 0.028
10/24/2003  11/21/2003 5 1 year 0 0.016
1/1/2000  -  7/10/20008/14/2000 5 1 year 0 0.020
1/1/1999  -  6/7/19997/16/1999 5 1 year 0 0.130
7/1/1998  -  7/8/19987/31/1998 5 6 months 0 0.380
7/1/1997  -  7/9/19978/4/1997 5 6 months 0.0020 0.520


More information for this water system: SDWIS ID 4308
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