Active wells shall be maintained as follows:
- (a) A well casing shall not be terminated below ground surface, except as specified in We 602.35.
- (b) A well with a casing inside diameter of 4 to 12 inches shall be equipped with a well cover with an o-ring, gasket or other seal to prevent the entrance of insects or other foreign matter into the well.
- (c) A well with a casing inside diameter less than 4 inches shall be fitted with a secure cap or plug.
- (d) A well constructed by excavation shall be equipped with a concrete cover or shall be enclosed in a locked structure specifically designed to house the well. Where a well house is provided, covers other than concrete shall be permitted.
- (e) A monitoring well shall be fitted with a secured tamper proof well cover.
Source. (See Revision Note at chapter heading for We 600) #12083 eff 3-1-17