OHA Drinking Water Services
OR41
PWS ID: 91663 ---- CLOVER RIDGE ELEMENTARY
Lead & Copper

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Summary Results
Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
9/10/2025  -  9/16/20259/19/2025 5 3 years 0.0130 0.117
7/14/2022  5 3 years 0 0.188
7/14/2022  7/18/2022 5 3 years 0.0035 0.188
9/25/2018  5 3 years 0 0.256
9/25/2018  10/1/2018 5 3 years 0.0014 0.256
6/5/2015  5 3 years 0 0
6/5/2015  6/22/2015 5 3 years 0.0021 0
8/6/2012  5 3 years 0 0
8/6/2012  8/29/2012 5 3 years 0.0076 0
8/24/2009  9/30/2009 5 3 years 0.0138 0.075
9/27/2006  -  9/28/200610/2/2006 5 3 years 0.0032 0
5/1/2003  6/9/2003 5 3 years 0.0033 0
1/1/2001  -  8/21/20019/20/2001 5 1 year 0.0074 0.096
1/1/1999  -  11/4/19992/22/2000 5 1 year 0.0404 0.411
1/1/1998  -  6/11/19989/29/1998 5 1 year 0.0097 0.533
7/1/1995  -  12/7/19952/8/1996 10 6 months 0.0140 0.470
7/1/1993  -  12/20/19931/4/1994 10 6 months 0.0070 0.280


More information for this water system: SDWIS ID 973
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