OHA Drinking Water Services
OR41
PWS ID: 93701 ---- STAFFORD ELEMENTARY
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
6/26/2022  7/5/2022 10 3 years 0.0037 0.221
6/13/2019  10 3 years 0 0.258
6/13/2019  6/26/2019 10 3 years 0 0.258
6/9/2015  7/13/2015 10 3 years 0.0043 0.342
9/26/2013  10/22/2013 10 3 years 0.0062 0.445
9/17/2010  -  9/24/201010/8/2010 15 3 years 0.0035 0.330
6/6/2006  6/30/2006 10 3 years 0.0010 0.230
10/2/2001  9/17/2004 5 1 year 0.0025 0.160
7/1/1997  -  11/14/199712/24/1997 20 6 months 0 0.078
1/1/1995  -  3/8/19953/20/1995 20 6 months 0 0.190


More information for this water system: SDWIS ID 1414
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