1. (a) A new wastewater treatment facility must have color-coded pipes in accordance with subsection (e) of this section.
2. (b) A new wastewater treatment facility must have detectable underground warning tape for each non-metallic underground pipe.
3. (c) An existing wastewater treatment facility must color-code and install detectable underground warning tape for each pipe installed as part of an alteration.
4. (d) A non-potable water pipe must be painted purple and be stenciled "NON-POTABLE WATER, DO NOT DRINK" and "NO BEBA EL AGUA."

5. (e) A wastewater treatment facility design must use the following color-coding for pipes:

   1. (1) sludge - brown;
   2. (2) natural gas - red;
   3. (3) potable water - light blue;
   4. (4) chlorine - yellow;
   5. (5) sulfur dioxide - lime green with yellow bands;
   6. (6) sewage - grey;
   7. (7) compressed air - light green;
   8. (8) heated water - blue with 6 inch red bands spaced 30 inches apart;
   9. (9) power conduit - in compliance with the National Fire Protection Association 70 National Electrical Code®;
   10. (10) reclaimed water- purple with black lettering;
   11. (11) gray water- purple with yellow writing;
   12. (12) instrument air - light green with dark green bands;
   13. (13) liquid alum - yellow with orange bands;
   14. (14) alum (solution) - yellow with green bands;
   15. (15) ferric chloride - brown with red bands;
   16. (16) ferric sulfate - brown with yellow bands;
   17. (17) polymers - white with green bands;
   18. (18) ozone - stainless steel with white bands;
   19. (19) raw water - tan; and
   20. (20) effluent after clarification - dark green.

Source Note:The provisions of this §217.329 adopted to be effective August 28, 2008, 33 TexReg 6843; amended to be effective December 4, 2015, 40 TexReg 8254.