Home Inspector Series: Manganese in Drinking Water
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Home Inspectors can get a better understanding about how manganese affects their client\'s drinking water, and what can be done about it. Delivered in clear, easy to understand language for all home inspector levels.
Transcript of Home Inspector Series: Manganese in Drinking Water
Part of the Water Wisdom Seriesfor
Home Inspectorsby:
Scott J. BradleyAquacheck Laboratory, Inc.
www.Aquacheck-VT.com
1-800-263-9596
Manganese: Symbol - MnSources: Manganese can be found in drinking
water as a naturally occurring element (metal) and is often times, but not always found where iron is located.
The USEPA (Environmental Protection Agency) has adopted a Secondary Maximum Contaminant Level (SMCL) for Manganese in drinking water at, 0.05 mg/l (zero point zero five parts per million).
A secondary contaminant causes aesthetic problems with the water, like odors, or in the case of Manganese, staining.
manganese ore: India Trade India Trade Company
Manganese in Drinking Water Manganese is an essential element for many
living things. Certain aquatic plants, like duckweed, can bio- accumulate Manganese to many times it’s original concentration.
Mn gives the gemstone, Amethyst, it’s beautiful purple color. If it comes in contact with oxygen, it then turns black.That’s when it can become a problem!
Home Inspectors & Manganese ProblemsNow you know that Manganese can cause
black staining – usually in porcelain fixtures like the back of toilet bowls and tanks.
It may also build up and cause obstruction of water in a distribution pipe, called biofouling.
If you are a Home Inspector and sampling for Coliform Bacteria in a home with non chlorinated water, too much manganese can cause a positive interference in the chlorine (DPD) test.
Home Inspector to Client:Don’t forget to tell someone if their manganese
is high, SMCL = 0.05 mg/L), that adding chlorine based
bleach to the laundry can precipitate the Mn out of solution and cause significant staining.
• There are filters available to take out manganese. Also, an ion exchange (water softener) can
be used as well as an R.O., or reverse osmosis machine. • I go to the NSF to find out about filters and filtration products.
Home Inspector - Questions?
This has been a courtesy learning tool brought to you by: Scott J. Bradley –Aquacheck Laboratory, Inc.
Want to Learn more?For Testing Kits and Info, Go to:
www.Aquacheck-VT.com
1-800-263-9596
Email: [email protected]
