WATER QUALITY REPORTS

TGW Manganese Chart (Tested Quarterly)

TGW has completed a community survey and received community approval to forgo manganese treatment. TGW was granted a nine-year waiver in March 2013.

Manganese and iron are naturally occurring minerals found in the earth’s crust. These minerals can dissolve into groundwater and become present in drinking water. Because TGW pumps water from deep groundwater wells, manganese levels may vary, as shown in the chart above, with small amounts of iron also present.

Manganese and iron are classified by the EPA as secondary drinking water standards, which address aesthetic qualities such as taste, color, and staining rather than health-based concerns at the secondary levels.

TGW is currently chlorinating the water due to ongoing construction. Chlorination can oxidize naturally occurring manganese and iron, which may temporarily cause the water to appear tea-colored.

If you notice tea-colored water, we recommend flushing the system for 1–3 minutes using the garden hose closest to your water meter. Then, run the cold water from your kitchen faucet until the water runs clear.

For the Consumer Confidence report, click on the CCR Newsletter webpage