OHA Drinking Water Services
OR41
PWS ID: 00202 ---- COLTON WATER DISTRICT
Lead & Copper

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Summary Results
Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
8/20/2025  -  9/4/20259/24/2025 10 3 years 0.0016 0.090
9/25/2022  -  9/27/2022 10 3 years 0 0.160
9/25/2022  -  9/27/202210/5/2022 10 3 years 0 0.160
9/16/2019  -  9/22/2019 10 3 years 0 0.053
9/16/2019  -  9/22/201910/2/2019 10 3 years 0.0050 0.053 10/4/2019
8/1/2016  -  8/7/2016 10 3 years 0 0.270
8/1/2016  -  8/7/20168/31/2016 10 3 years 0.0083 0.270
9/18/2013  -  9/24/201310/2/2013 10 3 years 0.0040 0.208
9/21/2012  -  9/26/201210/5/2012 6 3 years 0.0010 0.373
9/22/2009  -  10/27/200910/19/2009 10 3 years 0.0030 0.470
1/19/2006  2/2/2006 10 3 years 0.0010 0.300
11/27/2002  -  12/3/200212/24/2002 5 3 years 0.0005 0.295
1/1/1998  -  9/17/199810/26/1998 10 1 year 0.0009 0.190
1/1/1997  -  9/11/199710/21/1997 10 1 year 0 0.170
1/1/1996  -  9/12/199611/8/1996 10 1 year 0.0027 0.152
1/1/1995  -  4/18/19956/5/1995 20 6 months 0.0150 0.660
7/1/1993  -  10/4/19931/4/1994 20 6 months 0.0150 0.940


More information for this water system: SDWIS ID 3943
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