OHA Drinking Water Services
OR41
PWS ID: 94992 ---- SANDY RIDGE HEADSTART
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
8/20/2021  9/5/2021 5 3 years 0.0030 0.185
6/25/2018  -  6/29/20187/9/2018 5 3 years 0.0033 0.404
8/26/2014  9/5/2014 5 3 years 0.0032 0.235
9/17/2011  10/5/2011 5 3 years 0.0082 0.247
10/3/2010  11/2/2010 5 3 years 0.0033 0.210
9/28/2006  10/16/2006 5 3 years 0.0080 0.215
7/20/2003  8/4/2003 5 1 year 0.0020 0.270
1/1/1998  -  10/6/199810/14/1998 5 1 year 0.0111 0.600
1/1/1997  -  4/17/19975/9/1997 5 6 months 0.0160 0.460
7/1/1996  -  12/6/19962/13/1997 5 6 months 0.0110 0.723


More information for this water system: SDWIS ID 4287
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