Rule 157a. Well caps and seals shall be weathertight and vermin-proof, provide venting pursuant to the provisions of R 325.1657, and be tightly secured to the well casing.
Mich. Admin. Code R. 325.1657a
Rule 157a. Well caps and seals shall be weathertight and vermin-proof, provide venting pursuant to the provisions of R 325.1657, and be tightly secured to the well casing.
Mich. Admin. Code R. 325.1657a