(a) Design requirement. Disinfectant equipment and systems constructed on or after the effective date of this subchapter shall be planned and designed by a licensed engineer.
(b) Disinfectant agent. Lagoon water shall be continuously disinfected by a disinfectant agent with a residual that can be easily measured by simple and accurate field tests, unless the department has approved an alternate method of disinfectant.
(c) Training and protection. Personnel responsible for the operation of the disinfectant agent and other potentially hazardous chemicals shall be properly trained and provided with appropriate protective equipment and clothing, including rubber gloves and goggles, safety information, and safety data sheets. Safety data sheets covering all chemicals for which personnel are responsible shall be kept on site and readily available.
(d) Monitoring controllers. Automated, manual, or remotely managed controllers shall be installed for monitoring and turning on or off chemical feeders used for pH and disinfectants.
(e) Instructions. Operation manuals or other instructions that give clear directions for cleaning and calibrating automated controller probes and sensors shall be kept in close proximity to the automated controller.
(f) Storage.
  (1) Disinfectant agents and other chemicals and feed equipment shall be stored so that users do not have access.
  (2) Dry chemicals shall be stored off the floor in a dry, above-ground-level room and protected against flooding or wetting from floors, walls, and ceiling.
  (3) Chlorine compounds shall not be stored in the same storage room or storage area as petroleum products.
(g) Labeling. All chemical bulk and day tanks shall be clearly labeled to indicate the tank's contents.
(h) Chlorine gas prohibited. Use of compressed chlorine gas is prohibited.

Source Note: The provisions of this §265.165 adopted to be effective March 1, 2020, 45 TexReg 1024