All central water systems depending on ground water for part or all of their source of supply shall be tested monthly by a person, firm or other entity approved by the State Department of Health to take such tests, or by the Village Building Inspector, to determine the static water level and specific capacity of the water supply remaining in the central water system. Such testing shall be done by the use of automatic water level recorders attached to the central water system using monthly reading charts. Any recorder used must be manufactured with specifications approved by the Village hydrologist and the minimum resolution applicable to such static water testing shall be plus or minus one foot per one quarter day. (Ord. 1983-16. Passed 3-14-83.)