N.H. Code Admin. R. Env-Ws 346.01
Current through Register No. 25, June 20, 2024
Table 346-1
Best Available Treatment for Inorganics
| Chemical Name | BAT (See codes in Table 346-2) |
| Antimony | 2,7 |
| Arsenic | 1,2,5,6,7,9 |
| Asbestos | 2,3,8 |
| Barium | 5,6,7,9 |
| Beryllium | 1,2,5,6,7 |
| Cadmium | 2,5,6,7 |
| Chromium | 2,5,6*,7 |
| Cyanide | 5,7,9,13 |
| Fluoride | 1***, 7*** |
| Lead | See Env-Ws 381 |
| Mercury | 2**,4,6**,7** |
| Nitrate | 5,7,9 |
| Nitrite | 5,7 |
| Selenium | 1,2***,6,7,9 |
| Thallium | 1,5 |
Table 346-2
Codes for Table 346-1
| Code | Treatment Method |
| * | BAT for chromium III only |
| ** | BAT only if influent Mercury concentrations less than 10ug/l |
| *** | BAT for selenium IV only |
| **** | Central treatment only |
| 1 | Activated Alumina |
| 2 | Coagulation/Filtration (Not BAT for systems withless than 500 service connections) |
| 3 | Direct and Diatomite Filtration |
| 4 | Granular Activated Carbon |
| 5 | Ion Exchange |
| 6 | Lime softening, not BAT for systems less than 500 service connections |
| 7 | Reverse Osmosis |
| 8 | Corrosion Control |
| 9 | Electrodialysis |
| 10 | Reserved |
| 11 | Reserved |
| 12 | Reserved |
| 13 | Chlorine Oxidation |
| 14 | Ultraviolet |
N.H. Code Admin. R. Env-Ws 346.01
(See Revision Note at chapter heading Env-Ws 300) #6521, eff 6-4-97; amd by #7645, eff 2-8-02; ss by #8360, INTERIM, eff 6-4-05, EXPIRES: 12 -1-05; ss by #8497, eff 11-30-05