Heavy Metals Water Issues in Umatilla County: Evaluating Copper Presence and Treatment Options

Sample Data Behind Copper Measurements in Umatilla County Aquifer 122CBRV

The U.S. Geological Survey collected groundwater samples from 11 wells in Umatilla County, Oregon, within aquifer 122CBRV between August 2014 and September 2018. A total of 12 results were compiled, with copper detected in 4 of those samples and measurements ranging from 1.1 to 10.6 micrograms per liter. The median copper concentration was 1.8 micrograms per liter. Eight samples showed copper levels below the reporting limit. These wells varied widely in depth, from 52 to 1787 feet. Because this data represents an area-wide sampling, it is important to recognize that these figures do not indicate the copper level in any individual private well or household water source.

Assessing Treatment Capacity Against Household Water Demand

When considering systems to treat heavy metals like copper, it’s important to align treatment capacity with your household’s daily water usage. A treatment unit that is sized based solely on regional water quality data may not meet the specific demand of your home. To make an informed choice, you should measure or estimate your daily water consumption, including all uses such as drinking, cooking, bathing, and cleaning. Treatment devices are designed to handle certain volumes and contaminant concentrations, so matching these factors ensures effective performance without overburdening the system.

The Role of Plumbing Material and Age Versus Source Water Copper Levels

Even if source water copper concentrations are low, copper can enter household water through corrosion of plumbing materials. Older pipes and fixtures that contain copper or copper alloys can gradually release copper ions into water, especially if water chemistry promotes corrosion. This means that the presence of copper in your water may reflect plumbing conditions as much as the aquifer’s baseline levels. Understanding the age and type of plumbing in your home is essential alongside source water testing, as treatment approaches might differ depending on the copper’s origin.

Long-Term Effects of Untreated Copper in Household Water

Copper in drinking water typically affects taste and may cause staining on plumbing fixtures or laundry. While copper is an essential nutrient at low levels, prolonged exposure to elevated copper concentrations without treatment can result in unpleasant water taste, greenish stains, and potential plumbing corrosion. It is important to note that the detected copper levels in the regional samples were below any federal health-based thresholds. Still, if your household water exhibits symptoms related to copper, addressing it can improve water quality and preserve plumbing.

Information to Record Before Seeking Heavy Metals Treatment Advice

• Results of a certified laboratory analysis for copper and other heavy metals from your household water source
• Your household’s average and peak daily water consumption in gallons
• The depth and type of your water source, such as well depth and aquifer characteristics
• Details about your home’s plumbing materials, including pipe age and metal composition
• Any observations about water taste, staining, or discoloration impacting household use

Differences Between Aesthetic Secondary Standards and Health-Based Limits for Copper

Federal secondary standards for copper focus on aesthetic issues like taste, staining, and corrosion potential rather than direct health risks. In contrast, health-based limits set the maximum allowable concentration to protect consumers’ health. The copper concentrations found in the Umatilla County aquifer samples were below federal health-based thresholds, indicating no regulatory health concern at that regional level. Recognizing this distinction helps in deciding whether treatment is needed for taste and appearance versus health protection purposes.

For households in Umatilla County, aligning treatment capacity with daily water demand and understanding your plumbing’s role is crucial in managing copper presence. The C-Series Heavy Metals Filter ships ready to configure for residential use and is designed to address heavy metals effectively based on measured demand levels. Having your water tested and demand established will guide your choice in selecting equipment to maintain water quality and household comfort.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2018-09-20. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.

On record: U.S. Geological Survey sampling of Copper in the 122CBRV aquifer (Umatilla County): 12 results from 11 wells, median 1.8 ug/L, range 1.1-10.6 ug/L; none above any federal threshold