Four days after a sewage leak was detected and repaired at Lincoln Park, testing shows the beaches in the area are safe to use again. That’s the word from the King County Wastewater Treatment Division, which is responsible for the equipment that failed and caused the leak – an air valve in a vault along a “force main” that carries wastewater and stormwater north from the Barton Pump Station north of the Fauntleroy ferry dock. KCWTD spokesperson Marie Fiore says they estimate 13,000 gallons had leaked before th problem was fixed, but they don’t know how much of that got into Puget Sound, as some of it was contained by the vault and pumped out by Seattle Public Utilities before crews zeroed in on the problem and handed it off to the county. Fiore told us earlier this week that the vault is inspected frequently and had gone through an inspection less than two weeks before the valve failure.