OHA Drinking Water Services
OR41
PWS ID: 93718 ---- NINETY-ONE ELEM SD 91
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
2/28/2020  3/9/2020 10 6 months 0.0037 0.064
9/24/2019  10/4/2019 5 6 months 0.0040 0.032
9/14/2016  9/29/2016 5 3 years 0.0031 0.221
9/18/2013  9/30/2013 5 3 years 0.0022 0.139
9/21/2010  11/2/2010 5 3 years 0.0008 0.013
12/29/2005  6/12/2006 5 3 years 0.0065 0.030
3/19/2002  1/9/2003 6 1 year 0 0.020
1/1/1997  -  6/6/19978/12/1997 5 1 year 0 0.030
1/1/1996  -  6/6/19967/1/1996 5 1 year 0.0100 0.182
7/1/1995  6/1/1995 10 6 months 0.0010 0.120
1/1/1995  -  2/8/19956/1/1995 10 6 months 0 0


More information for this water system: SDWIS ID 1422
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