OHA Drinking Water Services
OR41
PWS ID: 00902 ---- INTERLACHEN WATER PUD
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
8/30/2021  9/1/2021 5 3 years 0.0008 0.303
8/28/2018  -  8/29/20189/17/2018 5 3 years 0.0018 0.091
9/3/2015  -  9/4/20159/17/2015 5 3 years 0.0016 0.109
9/25/2012  -  9/26/201210/8/2012 5 3 years 0 0.048
8/18/2009  2/25/2011 5 3 years 0.0011 0.038
8/1/2003  11/3/2003 5 3 years 0.0020 0.044
1/1/1998  -  9/26/19981/5/1999 5 1 year 0.0006 0.081
1/1/1997  -  12/31/19971/5/1999 5 1 year 0.0007 0.022
1/1/1996  -  11/13/19963/31/1997 5 1 year 0.0011 0.075
7/1/1994  -  7/28/19948/2/1994 10 6 months 0 0
7/1/1993  -  12/15/19931/12/1994 10 6 months 0.0020 0.050


More information for this water system: SDWIS ID 4021
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