| Texas Administrative Code |
| TITLE 30 | ENVIRONMENTAL QUALITY |
| PART 1 | TEXAS COMMISSION ON ENVIRONMENTAL QUALITY |
| CHAPTER 217 | DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS |
| SUBCHAPTER H | NATURAL TREATMENT UNITS |
Rules
| §217.201 | Applicability |
| §217.202 | Primary and Secondary Treatment Units |
| §217.203 | Design Criteria for Natural Treatment Facilities |
| §217.204 | Imhoff Tanks |
| §217.205 | Facultative Lagoons |
| §217.206 | Aerated Lagoons |
| §217.207 | Stabilization Lagoons |
| §217.208 | Evaporative Lagoons |
| §217.209 | Constructed Wetlands |
| §217.210 | Constructed Wetlands--Free Water Surface Design |
| §217.211 | Constructed Wetlands--Subsurface Flow System General Design |
| §217.212 | Overland Flow Process |
| §217.213 | Integrated Facultative Lagoons |
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