Nitrates in Groundwater 

April 2022 
EPA and State of Oregon consider 7-10 ppm "safe." Not the three samples (36.5, 18.56, 41 and 39) well above safe with filtration systems.

1990-2022. 
DEQ sampling data (AWQMS 1990-2022) covering some of these same rural residential wells plus other areas across LUBGWMA. Click here

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May 17, 2022. 
24 Samples, all but one dangerously high. Note, the 4.65 mg/l results was a requested retest after the owner put in a new filter. Click here.

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2012 
DEQ 2012 analysis of data (concentrations/trends) from 7 groups of wells regularly tested that include DEQ's LUBGWMA Well Network; Food Processor and App Sites; Three Mile Canyon Farms Wells; Public Supply Wells; Synoptic Sampling Events; Depot Landfill Wells; Real Estate Transaction Database (OHA staff noted "a shoebox of data statewide; 10-20% comply"). Conclusion: "LUBGWMA Action Plan (first) measure of success that calls for decreasing nitrate concentrations through the GMA by the end of 2009 was not met." Click here

Nitrates in Groundwater