The hue of the test strip seems to be between the 60 and 120 ppm levels. The water on the strip makes it brighter than the colors on the chart, but the hue (tint) can be compared. The 180 ppm is a bit more purplish than the test strip and the 30 ppm is more turquoise than the test strip.
Transcript of LEADER-ANTOINETTE TUFF-HERO. Antoinette Tuff is a strong leader whose authority everyone respects. Has been in school system eight years, three at Ronald E. McNair Discovery Learning Academy. Had training in hostile or dangerous situations or crisis, i.e trespassers, and emergency situations. LEADER
Tufa columns at Mono Lake, California, western USA. Tufa is a variety of limestone, formed by the precipitation of carbonate minerals from ambient temperature water bodies. Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits known as travertine. Tufa is sometimes referred to as (meteogene) travertine; care must be taken when searching through literature to prevent confusion with hot spring (thermogene) travertine. Calcareous tufa should not be confused with tuff, a porous volcanic rock with parallel etymological origins that is sometimes called tufa.