Early in the twentieth century, Lake Konfa became very polluted  Recently fish populations have recovered as release of industrial pollutants has declined and the lake' s waters have become cleaner  Fears are now being voiced that the planned construction of an oil pipeline across the lake' s bottom might revive pollution and cause the fish population to decline again  However, a technology for preventing leaks is being installed
Ttherefore, provided this technology is effective, those fears are groundless
Damage to the lake's fish populations would be the only harm that a leak of oil from the pipeline would cause.