OHA Drinking Water Services
OR41
PWS ID: 01565 ---- WINCHESTER RIDGE
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
5/30/2025  6/10/2025 5 6 months 0.0040 0.157
11/7/2024  -  11/14/202412/4/2024 5 6 months 0.0050 0.069


More information for this water system: SDWIS ID 5694
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