OHA Drinking Water Services
OR41
PWS ID: 01329 ---- PORT OF TILLAMOOK BAY
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
9/18/2024  5 3 years 0 0.022
9/18/2024  9/27/2024 5 3 years 0.0006 0.022 9/27/2024
8/25/2021  5 3 years 0 0.018
8/25/2021  9/1/2021 5 3 years 0.0007 0.018 9/3/2021
9/5/2018  5 3 years 0 0.073
9/5/2018  9/17/2018 5 3 years 0.0009 0.073 9/25/2018
7/15/2015  5 3 years 0 0.131
7/15/2015  7/31/2015 5 3 years 0.0043 0.131
9/12/2012  5 3 years 0 0.180
9/12/2012  9/21/2012 5 3 years 0.0038 0.180
9/28/2009  10/28/2009 5 3 years 0.0016 0.018
11/29/2006  1/4/2007 5 3 years 0 0
9/26/2003  10/14/2003 5 3 years 0.0070 0.031
1/1/2000  -  10/10/200010/23/2000 5 3 years 0.0020 0.140
1/1/1998  -  10/23/19985/8/2000 10 6 months 0.0012 0.061
1/1/1998  -  3/25/19984/16/1998 10 6 months 0.0053 0.120
1/1/1995  -  1/4/19953/6/1995 10 6 months 0.0570 1.100


More information for this water system: SDWIS ID 4089
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