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Results of a Screening Analysis for Pharmaceuticals in Wastewater Treatment Plant Effluents, Wells, and Creeks in the Sequim-Dungeness Area

Publication number Date Published
04-03-051November 2004
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Author(s) Johnson, A., B. Carey, and S. Golding
Description A screening analysis was conducted for 24 pharmaceuticals and personal care products (PPCPs) in tertiary wastewater treatment plant effluents and nearby wells and creeks in the Sequim-Dungeness area of northwest Washington. The objective was to investigate the potential for PPCP contamination of area waters from application of treated wastewater via re-use programs and conventional land application.

The following 16 compounds were detected in the effluent samples: Acetaminophen, Caffeine, Carbamazepine, Cimetidine, Codeine, Cotinine, Diltiazem, Hydrocodone, Ketoprofen, Metformin, Nicotine, Paraxanthine, Salbutamol, Sulfamethoxazole, Trimethoprim, and Estrone. Concentrations ranged from 0.26 ng/L (Estrone) to 200 ug/L (Paraxanthine). Only Caffeine, Nicotine, and the diabetes drug Metformin (tentatively identified) were consistently detected in the well and creek samples; concentrations were less than 25 ug/L.
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Keywords pharmaceuticals, wastewater treatment plant, results, creek, wells, water, effluent
WATERSHED Water Resource Inventory Area 18 Elwah-Dungeness
DATA Environmental Information Management (EIM) #AJOH0043


Quality Assurance Project Plan: Screening for Pharmaceuticals in Wastewater Treatment Plant Effluents, Groundwater, and Surface Water in the Sequim-Dungeness Area