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LNVA Canal Water Quality Data
Lower Neches Valley Authority collects and analyzes canal water samples daily to provide
its industrial and municipal customers with current water quality data. The data enable
our customers to prepare for any changes in water quality directly affecting their water
treatment processes, allowing them to prepare an adequate supply of chemicals to maintain
the highest level of quality processed water. Each of our customers need specific
information relative to their applications. For example, municipal water treatment plants
need data on alkalinity, turbidity and pH, while industrial users are concerned about
water hardness to determine if scaling would pose a problem. The following is an average,
minimum and maximum value for each parameter.
LOWER NECHES VALLEY AUTHORITY FRESH WATER QUALITY
PHYSICAL AND CHEMICAL CHARACTERISTICS
| Parameter | Typical | Normal Range |
| pH | 7.1 | 6.3-7.2 |
| Alkalinity, as mg/L CaCO³ | 28 | 8-38 |
| Color, true units | 30 | 20-240 |
| Turbidity, NTU | 40 | 15-150 |
| Hardness, as mg/L CaCO³ | 30 | 12-42 |
| Nonfiltrable Residue (Suspended Solids) ng/L |
40 |
15-120 |
| Volitile Nonfiltrable Residue, mg/L |
8 |
2-40 |
| Filtrable Residue (Dissolved Solids) Total, mg/L | 120 |
90-150 |
| Total Residue (Total Solids) mg/L | 160 |
110-240 |
| Iron, Total, mg/L | 1.0 | 0.4-2.0 |
| Calcium, mg/L | 7 | 5-10 |
| Magnesium, mg/L | 4 | 2-6 |
| Chlorides, mg/L | 20 | 12-70 |
| Silica, dissolved, mg/L | 8 | 5-11 |
| Total Organic Carbon, mg/L | 8 | 4-15 |
For more information about obtaining more detailed data
about LNVA water quality contact Andrew Bruno, Environmental Coordinator at andrewb@pernet.net.
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