| Area | Americano Creek |
| Topic | WQ: Copper in Americano Cr / Estero America 1988-1990 |
| Caption: The graph shows average, minimum, and maximum dissolved copper concentrations measured in Americano Creek, and its estuary, Estero Americano, during 1988-1990. Sampling occurred generally monthly, with the number of copper measurements at each station ranging from 1 to 16 samples for the monitoring period. The lowest values represent measurements below the minimum detection limit (MDL). Note that Stations E-1 through E-5 are estuarine. The reference values are the U.S. Environmental Protection Agency (USEPA) Freshwater Critical Maximum Concentration (13 µg/L) and Critical Continuous Concentration (9 µg/L) (USEPA, 2002). Note the equivalent saltwater criteria are 4.8 and 3.1 µg/L, respectively. The freshwater criteria are expressed as a function of hardness and since hardness was not measured a value of 100 mg/L was assumed. This monitoring was part of a water quality study of Americano and Stemple Creeks by Merritt Smith Consulting for the City of Santa Rosa and U.S. Army Corps of Engineers. See Picture for a map of the sampling locations and Info Links for more details. | |
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To download the table with the chart's source data, click wq_americano_msc_1988_1994.xls.db (size 96,256 bytes)
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