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Indicator Gauge Icon Legend

Legend Colors

Red is bad, green is good, blue is not statistically different/neutral.

Compared to Distribution

an indicator guage with the arrow in the green the value is in the best half of communities.

an indicator guage with the arrow in the yellow the value is in the 2nd worst quarter of communities.

an indicator guage with the arrow in the red the value is in the worst quarter of communities.

Compared to Target

green circle with white tick inside it meets target; red circle with white cross inside it does not meet target.

Compared to a Single Value

green diamond with downward arrow inside it lower than the comparison value; red diamond with downward arrow inside it higher than the comparison value; blue diamond with downward arrow inside it not statistically different from comparison value.

Trend

green square outline with upward trending arrow inside it green square outline with downward trending arrow inside it non-significant change over time; green square with upward trending arrow inside it green square with downward trending arrow inside it significant change over time; blue square with equals sign no change over time.

Compared to Prior Value

green triangle with upward trending arrow inside it higher than the previous measurement period; green triangle with downward trending arrow inside it lower than the previous measurement period; blue equals sign no statistically different change  from previous measurement period.

green chart bars Significantly better than the overall value

red chart bars Significantly worse than the overall value

light blue chart bars No significant difference with the overall value

gray chart bars No data on significance available

More information about the gauges and icons

Copper Contaminants in Drinking Water

Measurement Period: 2022

Copper milligrams per liter (mg/L) concentration in Truckee Meadows Water Authority (TMWA) drinking water.

The Action Level at Consumer Taps is 1.3 milligrams per liter (mg/L).  The level of copper is consistently well below the Action Level set by the EPA for safe drinking water.

Copper is a naturally occurring metal. It can be associated with the erosion of natural deposits or the corrosion of plumbing systems. 

TMWA is required by federal, state and local water regulations to monitor and meet regulatory standards for more than one hundred contaminants. All water delivered to its customers is treated and has been in compliance with all EPA (Environmental Protection Agency) and State of Nevada standards and regulations.

For more information on contaminants in drinking water, visit TMWA

Why is this important?

Safe, reliable and high quality drinking water is essential and an environmental determinant of health.

TMWA is a member of the Partnership for Safe Water, implementing prevention programs where legislation and regulation does not exist, to increase drinking water protection against microbial contamination.

Note: The EPA's monitoring rule combines copper and lead, as both are historically common plumbing materials. Read more about the rule regulating copper in drinking water: https://www.epa.gov/dwreginfo/lead-and-copper-rule. 


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0.134
Milligrams per liter (mg/ L)
Source: Truckee Meadows Water Authority
Measurement period: 2022
Maintained by: Truckee Meadows Tomorrow
Last update: July 2023
Filter(s) for this location: State: Nevada
Compared to See the Legend
Technical note: Truckee Meadows Water Authority, Water Quality Reports, https://tmwa.com/your-water/water-quality-facts/
More details:

The maximum level of this graph is set at 1.3 mg/L, which is the Action Level set by the EPA.

Graph Selections

Indicator Values
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Data Source

Filed under: Environmental Health / Toxins & Contaminants

Nevada Tomorrow