The Martha's Vineyard Times O.B. approves lighthouse lead testing Approval gives Coast Guard access to small portions of town-owned land where contamination may have spread. Oak Bluffs approved the Coast Guard to conduct lead testing and remediation on town owned land adjacent to East Chop Lighthouse. The Oak Bluffs select board approved lead testing to be conducted by the U.S. Coast Guard on town land adjacent to the East Chop Lighthouse where it believes contamination has spread. The approval gives the Coast Guard access to several small areas outside the 60- by 60-foot parcel of land it owns surrounding the lighthouse.