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WAC 173-160-341

How do I ensure the quality of drilling water?

All water introduced into a well for drilling purposes and for mixing sealing materials shall be obtained from a potable water source and have a chlorine residual of not more than 1 ppm free chlorine.
[Statutory Authority: Chapter 18.104 RCW and RCW 43.21A.080. WSR 98-08-032 (Order 97-08), ยง 173-160-341, filed 3/23/98, effective 4/23/98.]
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