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U.S. State Codes
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California
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Water Code - WAT
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DIVISION 7 - WATER QUALITY
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CHAPTER 9 - Waste Water Treatment Plant Classif...
CHAPTER 9 - Waste Water Treatment Plant Classification and Operator Certification
Section 13625.
Section 13625.1.
Section 13626.
Section 13627.
Section 13627.1.
Section 13627.2.
Section 13627.3.
Section 13627.4.
Section 13627.6.
Section 13628.
Section 13628.5.
Section 13629.
Section 13630.
Section 13631.
Section 13632.
Section 13633.