OHA Drinking Water Services
OR41
PWS ID: 00860 ---- TERREBONNE DOMESTIC 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
8/13/2025  -  8/14/20258/30/2025 10 3 years 0 0.056
6/24/2022  -  6/25/20227/8/2022 10 3 years 0 0.053
9/18/2019  -  9/20/201910/4/2019 10 3 years 0 0.045
9/23/2016  -  9/26/2016 10 3 years 0 0.050
9/23/2016  -  9/26/201610/5/2016 10 3 years 0 0.050
9/13/2012  10 3 years 0 0.042
9/13/2012  10/5/2012 10 3 years 0 0.042
8/18/2009  -  8/19/20099/22/2009 10 3 years 0 0
9/19/2006  -  9/21/200611/17/2006 10 3 years 0 0.051
12/3/2003  -  12/6/200312/26/2003 10 3 years 0 0.075
1/1/1999  -  12/22/20001/12/2001 10 3 years 0 0.087
1/1/1997  -  9/26/199710/31/1997 10 1 year 0.0013 0.085
1/1/1996  -  9/11/199611/7/1996 10 1 year 0 0.061
1/1/1995  -  12/7/19951/9/1996 10 1 year 0 0.077
1/1/1994  -  6/21/19947/26/1994 20 6 months 0 0.083
7/1/1993  -  9/15/199311/3/1993 20 6 months 0.0040 0.068


More information for this water system: SDWIS ID 4304
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