Turbidity

Turbidity, total suspended solids, total organic carbon, total phosphorus, and biochemical oxygen demand values are higher than in Ecoregions 36, 38, or 39, but mean stream gradients and dissolved oxygen levels are lower.

Ecoregions of Oklahoma (EPA) 2009

Turbidity limits are easily exceeded by suspended ash.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity depends on a number of factors, such as the number, size, shape, and refractive index of particles in water.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity, total phosphorus, total suspended solids, and biological oxygen demand values are lower, and dissolved oxygen levels are higher, than in the streams of Ecoregions 35 and 37.

Ecoregions of Oklahoma (EPA) 2009

Turbidity can have a significant effect on the microbiological quality of drinking water.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity problems were also experienced in the Whakapapa Village stream-fed water supply, located at the base of the mountain, forcing the Chateau, which was a hospital at the time, to close.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity is a measure of water's ability to scatter and absorb light, and is caused by the presence of particulate matter, such as clay, silt, volcanic ash, colloidal particles, and microscopic organisms.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity, or fine clays is where the toxins are contained.

Dave Cooper: Tennessee's Toxic Nightmare: Arsenic Levels 35 to 300 Times EPA Standard for Drinking Water 2009

Turbidity rose from 5 ppm to 290 ppm and lasted six days before returning to normal.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009

Turbidity limits are easily exceeded by suspended ash.

Volcanic Ash -- Effects on Water Supply and Mitigation Strategies 2009