OHA Drinking Water Services
OR41
PWS ID: 93720 ---- OREGON TRAIL SD - KELSO ELEM
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
6/14/2024  5 3 years 0 0.043
6/14/2024  6/19/2024 5 3 years 0.0012 0.043
6/17/2021  5 3 years 0 0.049
6/17/2021  6/22/2021 5 3 years 0.0035 0.049
6/21/2017  5 3 years 0 0.024
6/21/2017  7/6/2017 5 3 years 0.0008 0.024
6/17/2014  5 3 years 0 0.016
6/17/2014  7/8/2014 5 3 years 0 0.016
8/26/2011  9/6/2011 5 3 years 0.0011 0.012
8/10/2005  8/24/2005 5 3 years 0.0005 0.031
3/14/2003  4/1/2003 5 1 year 0 0.026
7/1/1999  -  10/14/199910/26/1999 10 6 months 0.0063 0.067
7/1/1994  -  7/26/19948/2/1994 10 6 months 0.0130 0.240


More information for this water system: SDWIS ID 1424
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