Transcription of TITLE 252. DEPARTMENT OF ENVIRONMENTAL QUALITY …
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TITLE 252. DEPARTMENT OF ENVIRONMENTAL QUALITY …
1 Codification through the 2018 legislative session. Subchapter 1 Board adoption - November 7, 2017 Approved by Governor's declaration on June 18, 2018 Effective date - September 15, 2018 TITLE 252. DEPARTMENT OF ENVIRONMENTAL QUALITY CHAPTER 626. PUBLIC WATER SUPPLY CONSTRUCTION STANDARDS 1 Introduction .. 252:626-1-1 3. Permit procedures .. 252:626-3-1 5. General 252:626-5-1 7. Source Development .. 252:626-7-1 9. Treatment .. 252:626-9-1 11. Chemical Application .. 252:626-11-1 13. Residuals Management .. 252:626-13-1 15. Pumping Facilities .. 252:626-15-1 17. Finished Water Storage .. 252:626-17-1 19. Distribution System .. 252:626-19-1 21. Design Standards for Minor Systems [REVOKED] .. 252:626-21-1 Appendix A. Piping Color Code Appendix B. Filtration Galleries Appendix C.
"Reduced pressure zone, backflow preventer" means a device designed to prevent backflow consisting of two spring loaded check valves with an intermediate reduced pressure zone that drains to the atmosphere by a relief valve, with a reduced pressure maintained in the intermediate zone by means of a pressure differential valve.
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