OHA Drinking Water Services
OR41
PWS ID: 01148 ---- COLUMBIA ACRES WATER ASSOC
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
12/18/2024  -  12/23/20241/10/2025 10 6 months 0 0.274
11/5/2023  -  11/8/202311/22/2023 11 6 months 0 1.020 12/20/2023
6/29/2022  -  7/29/20221/31/2025 4 3 years 0.0070 1.600
9/10/2019  -  9/12/201910/8/2019 5 3 years 0.0030 0.651 9/30/2019
9/28/2016  10/6/2016 5 3 years 0 0
9/25/2013  10/11/2013 5 3 years 0.0030 0.249
10/18/2010  12/8/2010 5 3 years 0 0.120
12/30/2005  1/25/2006 5 1 year 0.0060 0.100
12/30/2003  1/26/2004 5 1 year 0.0100 0.330
1/1/2002  -  2/15/20023/21/2002 10 6 months 0.0080 0.280
7/1/2000  -  12/21/20001/9/2001 10 6 months 0.0050 0.270
7/1/1998  -  10/16/199811/6/1998 10 6 months 0.0090 0.610
6/30/1998  4/21/1999 10 6 months 0.0040 1.340
1/1/1996  -  3/19/19964/2/1996 10 6 months 0 1.800
7/1/1993  -  7/7/199312/28/1993 10 6 months 0.0025 2.560


More information for this water system: SDWIS ID 3556
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