Water Quality
Cartwright Springs is surrounded by hardwoods and pine trees. The soils are deep and sandy which allow rain water to slowly filter through the pine needle-groundcover and into the aquifer. The source of the spring water is the aquifer formed in the Pleistocene-Age Lissie Formation, composed primarily of sands and gravels of an ancient river system, which naturally filters the frequent rains that are typical of the East Texas region.
The result of the natural filtration is water that is very low in total dissolved solids (TDS), total hardness, (low pH), sodium and other chemicals. Most of the primary and secondary inorganic constituents, ions and anions, including radionuclides, required to be tested, are either non-detectible (ND), or have extremely low occurrences. A complete array of Volatile Organic Compounds (VOC) has been tested with no occurrences reported. Microparticulate analysis has resulted in no microparticulate organisms being detected. Cartwright Springs has been extensively and repeatedly tested, far above the requirements of the TCEQ and TDSHS, to assure our customers of the highest quality spring water available. Cartwright Springs is probably the most completely tested privately owned and operated spring in Texas.
The surface facilities and equipment are state-of-the art for spring water production and transportation. Stainless steel construction has been used, where possible, for much of the surface equipment installation.
Partial list of constituents which are required to be tested and may affect the taste of water:
| Arsenic | ND |
| Boron | ND |
| Bromate | ND |
| Cadmium | ND |
| Calcium | 3.24 mg/l |
| Chloride | 4.40 mg/l |
| Chromium | ND |
| Fluoride | ND |
| Iron | ND to 0.10 mg/l |
| Nitrogen | ND (as nitrates/nitrites) |
| Selenium | ND |
| Sodium | 3.32 mg/l |
| Sulfate | ND |
| pH | 5.9 |
*ND = Non-detectable
