Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0011 - Water Quality
Chapter 12 - DESIGN AND CONSTRUCTION STANDARDS FOR PUBLIC WATER SUPPLIES
Section 12-13 - Chemical Application

(a) 2018 TSS, parts 5.0.2 and 5.0.2(f), general, chemical application; 5.0.3-5.0.3(h), general, general equipment design; 5.1.2-5.1.2(e)(4), feed equipment, control; 5.1.3-5.1.3(c), feed equipment, dry chemical feeders; 5.1.4-5.1.4(d), feed equipment, positive displacement solution feed pumps; 5.1.5-5.1.5(d), feed equipment, liquid chemical feeders-siphon control; 5.1.6-5.1.6(d), feed equipment, cross-connection control; 5.1.8-5.1.8(e), feed equipment, in-plant water supply; 5.1.9(a)(1-3), (b), and (d)(1-2), feed equipment, storage of chemicals; 5.1.10-5.1.10(j), feed equipment, bulk liquid storage tanks; 5.1.11-5.1.11(h), feed equipment, day tanks; 5.1.12-5.1.12(e), feed equipment, feed lines; 5.1.13-5.1.13(d); feed equipment, handling; 5.1.14-5.1.14(b), feed equipment, housing; 5.3.2, operator safety, respiratory protection equipment; 5.3.3, operator safety, chlorine gas leak detection; 5.4.1(d)(1-5) and (7-10), (f), and (h)(1-5), specific chemicals, chlorine gas; 5.4.2-5.4.2(b), specific chemicals, acids and caustics; 5.4.3-5.4.3(c)(5), specific chemicals, sodium chlorite; 5.4.4-5.4.4(b)(5), specific chemicals, sodium hypochlorite; are herein incorporated by reference.

(b) Chemical application facility designs shall comply with the following requirements:

(c) Chemical application facilities shall include an alarm for high effluent turbidity, low chlorine residual, and chlorine leaks when chlorine gas is used. The alarm shall be located at an attended location.