NO.bayoutesting.adv_8740.JPG PHOTO BY CHRIS GRANGER Apr 22, 2026 Apr 22, 2026 SMS Email Print Copy article link Save Healthy native underwater plants flourish along Bayou St. John near where it meets Lake Pontchartrain in New Orleans on Monday, April 13, 2026. PHOTO BY CHRIS GRANGER Tags Bayou St. John Lake Pontchartrain Conservancy Quality Test Water SMS Email Print Copy article link Save