OHA Drinking Water Services
OR41
PWS ID: 94821 ---- WILLOW LAKE TREATMENT PLANT ---- INACTIVE
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
12/4/2003  -  12/24/200312/29/2003 5 3 years 0.0022 0.456
1/1/1999  -  8/23/20009/18/2000 5 3 years 0.0006 0.311
1/1/1997  -  9/10/199710/2/1997 5 1 year 0.0011 0.210
1/1/1996  -  10/23/199610/28/1996 5 1 year 0.0048 0.290
1/1/1995  -  9/18/199510/10/1995 5 1 year 0.0032 0.261
1/1/1994  -  5/2/19945/26/1994 5 6 months 0.0037 0.220
7/1/1993  -  10/4/19931/6/1994 5 6 months 0.0047 0.225


More information for this water system: SDWIS ID 1967
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