Zinc

Metals

0.0243

PPM

Zinc is a naturally occurring metal commonly used as a protective coating for other metals used in plumbing materials. High zinc concentrations may impart a bitter or metallic taste to drinking water.

Total Dissolved Solids

Properties

938.8

PPM

Depending on the ions present, high total dissolved solids (>500 mg/L) can lead to excessive scaling in water pipes, water heaters, boilers, and household appliances such as kettles and steam irons, which can lead to shorter service lives of these appliances.

Sulfate

Inorganics

46.85

PPM

Sulfate can form scale on plumbing fixtures and the walls of pipes. Indirectly, sulfate that fuels sulfur-reducing bacteria creates the conditions for producing hydrogen sulfide gas, which can be corrosive to pipes.

Nickel

Metals

0.00601

PPM

Nickel is a naturally occurring metal, and the main source of nickel in drinking water is the leaching of nickel alloy from plumbing and fixtures. Nickel may cause a skin rash after exposure through contact or ingestion.

Manganese

Metals

0.00443

PPM

At relatively low concentrations, manganese can deposit on the coating inside pipes, which may subsequently slough off and release black solids into the water.

Lead

Metals

0.00137

PPM

Lead is a naturally occuring heavy metal with harmful health impacts. Corrosion of plumbing is the largest source of lead in drinking water.

Iron

Metals

0.0119

PPM

Iron in your tap water may indicate corroding plumbing or the presence of iron bacteria—organisms that consume iron to survive. Iron deposits and the slimy biofilm created by iron bacteria clog plumbing, water-using appliances, heaters, and treatment equipment, reducing their effectiveness and lifespan. These conditions may also increase the corrosivity of your tap water, causing pipes to release metals. If the iron in your tap water is the result of corrosion, your plumbing may also be leaching more hazardous metals like lead.

Copper

Metals

0.0721

PPM

Copper is a naturally occuring metal that is widely used in plumbing. Corrosion of plumbing, faucets, and fixtures is the most common source of copper in drinking water.