Minimum standards for construction and maintenance of water wells :
chapter 173-160 WAC, adopted April 30, 1973, effective May 30, 1973 and Water well construction act (1971), chapter 18.104 RCW.

APA Citation

Washington (State). Dept. of Ecology. (1973). Minimum standards for construction and maintenance of water wells: chapter 173-160 WAC, adopted April 30, 1973, effective May 30, 1973 and Water well construction act (1971), chapter 18.104 RCW. [Lacey, Wash.: s.n..

MLA Citation

Washington (State). Dept. of Ecology. Minimum Standards for Construction And Maintenance of Water Wells: Chapter 173-160 WAC, Adopted April 30, 1973, Effective May 30, 1973 And Water Well Construction Act (1971), Chapter 18.104 RCW. [Lacey, Wash.: s.n., 1973.