The passage you provided indicates the history of a submerged wreck located at LAT 42-57-55.4N, LONG 78-58-11.7W in Lake Ontario. The wreck was designated as LS1777/40.
During a hydrographic survey (H10020/82), a visual search of the area was conducted with good visibility up to 10 feet. However, the heavy grass and jagged bottom profile prevented wire drag operations.
The evaluator states that the wreck is presently charted at LAT 42-57-55.2N, LONG 78-58-12.0W. Based on the survey results, no change in the charting status is recommended. The information was entered into the Marine Safety Manual (MSM) in September 1988.
This means that the location of the submerged wreck, as well as its charting status, remains unchanged as per the latest survey information. It will continue to be marked and recorded on relevant navigation charts for reference and safety purposes.