OHA Drinking Water Services
OR41
PWS ID: 00313 ---- LA WATER CO-OP
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
9/10/2024  -  9/17/2024 10 3 years 0 0.199
9/10/2024  -  9/17/20249/27/2024 10 3 years 0.0013 0.199
8/19/2021  -  8/20/2021 10 3 years 0 0.098
8/19/2021  -  8/20/20219/2/2021 10 3 years 0.0020 0.098
7/11/2018  10 3 years 0 0.125
7/11/2018  8/7/2018 10 3 years 0.0030 0.125
6/9/2014  -  6/12/2014 10 3 years 0 0.097
6/9/2014  -  6/12/20146/18/2014 10 3 years 0.0020 0.097
8/29/2011  -  8/30/20119/12/2011 10 3 years 0 0.127
7/24/2008  -  7/25/20088/21/2008 10 3 years 0.0030 0.200
7/11/2005  -  7/14/20057/26/2005 20 6 months 0.0050 0.170
1/19/2005  -  1/24/20051/31/2005 20 6 months 0.0120 0.410
10/8/2003  -  10/10/200310/27/2003 20 6 months 0.0010 0.150
4/8/2003  -  4/15/20034/28/2003 20 6 months 0.0360 0.780
1/1/1997  -  12/11/199712/31/1997 10 1 year 0.0300 0.560
1/1/1996  -  7/22/19967/31/1996 10 1 year 0.0090 0.490
7/1/1995  6/22/1995 20 6 months 0.0110 0.730
1/1/1995  -  1/9/19951/31/1995 20 6 months 0.0130 1.200


More information for this water system: SDWIS ID 4037
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