OHA Drinking Water Services
OR41
PWS ID: 01013 ---- ALDRIDGE DITCH CO WS
Lead & Copper

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Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
7/7/2021  7/8/2021 5 1 year 0.0036 0.022
8/3/2020  8/13/2020 5 1 year 0.0022 0.013
9/11/2019  9/30/2019 5 1 year 0.0026 0.029
9/4/2018  9/17/2018 5 1 year 0.0033 0.025
9/12/2017  9/22/2017 5 6 months 0.0096 0.056
6/12/2017  6/26/2017 5 6 months 0.0067 0.040
6/10/2016  7/1/2016 5 6 months 0.0091 0.069


More information for this water system: SDWIS ID 2913
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