OHA Drinking Water Services
OR41
PWS ID: 00304 ---- ALDERWOOD WATER DEV CO
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
7/23/2024  -  7/25/20248/1/2024 5 6 months 0.0820 0.886
9/7/2022  -  9/9/20229/16/2022 5 3 years 0.0033 1.440
7/24/2019  -  7/29/20198/8/2019 5 3 years 0.0032 0.679
9/30/2016  10/7/2016 5 3 years 0.0109 0.464
9/18/2013  -  9/19/201310/4/2013 5 3 years 0 1.200
9/30/2010  10/15/2010 5 3 years 0.0060 0.970
9/13/2007  12/17/2007 5 3 years 0.0070 0.900
9/26/2004  -  9/29/200411/26/2004 5 3 years 0 0.925
1/1/2000  -  10/15/200010/30/2000 5 1 year 0 0.660
1/1/1999  -  12/9/19991/21/2000 5 1 year 0.0330 1.220
1/1/1997  -  9/30/199711/10/1997 5 1 year 0.0108 1.250
1/1/1995  -  8/15/19959/11/1995 5 1 year 0.0033 0.555
1/1/1994  -  6/27/199411/14/1994 5 6 months 0.0041 0.480
7/1/1993  -  11/6/199311/14/1994 5 6 months 0.0030 0.780


More information for this water system: SDWIS ID 3954
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